SLING-865 : Move to bundles
git-svn-id: https://svn.apache.org/repos/asf/incubator/sling/trunk@746693 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..d645695
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,202 @@
+
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diff --git a/NOTICE b/NOTICE
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--- /dev/null
+++ b/NOTICE
@@ -0,0 +1,9 @@
+Apache Sling Bundle Resource Provider
+Copyright 2008-2009 The Apache Software Foundation
+
+Apache Sling is based on source code originally developed
+by Day Software (http://www.day.com/).
+
+This product includes software developed at
+The Apache Software Foundation (http://www.apache.org/).
+
diff --git a/README.txt b/README.txt
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--- /dev/null
+++ b/README.txt
@@ -0,0 +1,38 @@
+Apache Sling Bundle Resource Provider
+
+Provides a ResourceProvider implementation supporting bundle
+based resources.
+
+Disclaimer
+==========
+Apache Sling is an effort undergoing incubation at The Apache Software Foundation (ASF),
+sponsored by the Apache Jackrabbit PMC. Incubation is required of all newly accepted
+projects until a further review indicates that the infrastructure, communications,
+and decision making process have stabilized in a manner consistent with other
+successful ASF projects. While incubation status is not necessarily a reflection of
+the completeness or stability of the code, it does indicate that the project has yet
+to be fully endorsed by the ASF.
+
+Getting Started
+===============
+
+This component uses a Maven 2 (http://maven.apache.org/) build
+environment. It requires a Java 5 JDK (or higher) and Maven (http://maven.apache.org/)
+2.0.7 or later. We recommend to use the latest Maven version.
+
+If you have Maven 2 installed, you can compile and
+package the jar using the following command:
+
+ mvn package
+
+See the Maven 2 documentation for other build features.
+
+The latest source code for this component is available in the
+Subversion (http://subversion.tigris.org/) source repository of
+the Apache Software Foundation. If you have Subversion installed,
+you can checkout the latest source using the following command:
+
+ svn checkout http://svn.apache.org/repos/asf/incubator/sling/trunk/extensions/bundleresource
+
+See the Subversion documentation for other source control features.
+
diff --git a/pom.xml b/pom.xml
new file mode 100644
index 0000000..a305122
--- /dev/null
+++ b/pom.xml
@@ -0,0 +1,125 @@
+<?xml version="1.0" encoding="ISO-8859-1"?>
+<!--
+ Licensed to the Apache Software Foundation (ASF) under one
+ or more contributor license agreements. See the NOTICE file
+ distributed with this work for additional information
+ regarding copyright ownership. The ASF licenses this file
+ to you under the Apache License, Version 2.0 (the
+ "License"); you may not use this file except in compliance
+ with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing,
+ software distributed under the License is distributed on an
+ "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ KIND, either express or implied. See the License for the
+ specific language governing permissions and limitations
+ under the License.
+-->
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+ <modelVersion>4.0.0</modelVersion>
+ <parent>
+ <groupId>org.apache.sling</groupId>
+ <artifactId>sling</artifactId>
+ <version>5-incubator-SNAPSHOT</version>
+ <relativePath>../../parent/pom.xml</relativePath>
+ </parent>
+
+ <artifactId>org.apache.sling.bundleresource.impl</artifactId>
+ <packaging>bundle</packaging>
+ <version>2.0.3-incubator-SNAPSHOT</version>
+
+ <name>Apache Sling Bundle Resource Provider</name>
+ <description>
+ Provides a ResourceProvider implementation supporting bundle
+ based resources.
+ </description>
+
+ <scm>
+ <connection>
+ scm:svn:http://svn.apache.org/repos/asf/incubator/sling/trunk/extensions/bundleresource
+ </connection>
+ <developerConnection>
+ scm:svn:https://svn.apache.org/repos/asf/incubator/sling/trunk/extensions/bundleresource
+ </developerConnection>
+ <url>
+ http://svn.apache.org/viewvc/incubator/sling/trunk/extensions/bundleresource
+ </url>
+ </scm>
+
+ <build>
+ <plugins>
+ <plugin>
+ <groupId>org.apache.felix</groupId>
+ <artifactId>maven-bundle-plugin</artifactId>
+ <extensions>true</extensions>
+ <configuration>
+ <instructions>
+ <Bundle-Activator>
+ org.apache.sling.bundleresource.impl.Activator
+ </Bundle-Activator>
+ <Private-Package>
+ org.apache.sling.bundleresource.*,
+ org.osgi.util.tracker
+ </Private-Package>
+ <DynamicImport-Package>
+ org.apache.felix.webconsole
+ </DynamicImport-Package>
+ </instructions>
+ </configuration>
+ </plugin>
+ </plugins>
+ </build>
+ <reporting>
+ <plugins>
+ <plugin>
+ <groupId>org.apache.maven.plugins</groupId>
+ <artifactId>maven-javadoc-plugin</artifactId>
+ <configuration>
+ <excludePackageNames>
+ org.apache.sling.bundleresource
+ </excludePackageNames>
+ </configuration>
+ </plugin>
+ </plugins>
+ </reporting>
+ <dependencies>
+ <dependency>
+ <groupId>javax.servlet</groupId>
+ <artifactId>servlet-api</artifactId>
+ </dependency>
+ <dependency>
+ <groupId>org.apache.sling</groupId>
+ <artifactId>org.apache.sling.api</artifactId>
+ <version>2.0.2-incubator</version>
+ </dependency>
+ <dependency>
+ <groupId>org.apache.sling</groupId>
+ <artifactId>org.apache.sling.jcr.resource</artifactId>
+ <version>2.0.2-incubator</version>
+ </dependency>
+ <dependency>
+ <groupId>org.apache.felix</groupId>
+ <artifactId>org.apache.felix.webconsole</artifactId>
+ <version>1.2.0</version>
+ </dependency>
+ <dependency>
+ <groupId>org.apache.felix</groupId>
+ <artifactId>org.osgi.core</artifactId>
+ </dependency>
+ <dependency>
+ <groupId>org.apache.felix</groupId>
+ <artifactId>org.osgi.compendium</artifactId>
+ <scope>compile</scope>
+ </dependency>
+ <dependency>
+ <groupId>org.slf4j</groupId>
+ <artifactId>slf4j-api</artifactId>
+ </dependency>
+ <dependency>
+ <groupId>junit</groupId>
+ <artifactId>junit</artifactId>
+ </dependency>
+ </dependencies>
+</project>
diff --git a/src/main/java/org/apache/sling/bundleresource/impl/Activator.java b/src/main/java/org/apache/sling/bundleresource/impl/Activator.java
new file mode 100644
index 0000000..33e7a60
--- /dev/null
+++ b/src/main/java/org/apache/sling/bundleresource/impl/Activator.java
@@ -0,0 +1,176 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.sling.bundleresource.impl;
+
+import java.lang.reflect.Method;
+import java.util.HashMap;
+import java.util.Map;
+
+import org.osgi.framework.Bundle;
+import org.osgi.framework.BundleActivator;
+import org.osgi.framework.BundleContext;
+import org.osgi.framework.BundleEvent;
+import org.osgi.framework.BundleListener;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class Activator implements BundleActivator, BundleListener {
+
+ /**
+ * The name of the bundle manifest header listing the resource provider root
+ * paths provided by the bundle (value is "Sling-Bundle-Resources").
+ */
+ public static final String BUNDLE_RESOURCE_ROOTS = "Sling-Bundle-Resources";
+
+ /**
+ * Fully qualified name of the Web Console Plugin class. This class will be
+ * loaded dynamically to prevent issues if the Felix Web Console is not
+ * installed in the system (value is
+ * "org.apache.sling.bundleresource.impl.BundleResourceWebConsolePlugin").
+ */
+ private static final String CONSOLE_PLUGIN_CLASS = "org.apache.sling.bundleresource.impl.BundleResourceWebConsolePlugin";
+
+ /**
+ * Name of the initialization method to call on the Web Console Plugin class
+ * (value is "initPlugin").
+ */
+ private static final String METHOD_INIT = "initPlugin";
+
+ /**
+ * Name of the shutdown method to call on the Web Console Plugin class
+ * (value is "destroyPlugin").
+ */
+ private static final String METHOD_DESTROY = "destroyPlugin";
+
+ /** default log */
+ private final Logger log = LoggerFactory.getLogger(getClass());
+
+ private Map<Long, BundleResourceProvider> bundleResourceProviderMap = new HashMap<Long, BundleResourceProvider>();
+
+ private BundleContext bundleContext;
+
+ public void start(BundleContext context) throws Exception {
+
+ this.bundleContext = context;
+
+ context.addBundleListener(this);
+
+ try {
+ Bundle[] bundles = context.getBundles();
+ for (Bundle bundle : bundles) {
+ if (bundle.getState() == Bundle.ACTIVE) {
+ // add bundle resource provider for active bundles
+ addBundleResourceProvider(bundle);
+ }
+ }
+ } catch (Throwable t) {
+ log.error(
+ "activate: Problem while registering bundle resources for existing bundles",
+ t);
+ }
+
+ // hackery thing to prevent problems if the web console is not present
+ callMethod(CONSOLE_PLUGIN_CLASS, METHOD_INIT,
+ new Class<?>[] { BundleContext.class }, new Object[] { context });
+
+ }
+
+ public void stop(BundleContext context) throws Exception {
+ // hackery thing to prevent problems if the web console is not present
+ callMethod(CONSOLE_PLUGIN_CLASS, METHOD_DESTROY, null, null);
+
+ context.removeBundleListener(this);
+ this.bundleContext = null;
+ }
+
+ /**
+ * Loads and unloads any components provided by the bundle whose state
+ * changed. If the bundle has been started, the components are loaded. If
+ * the bundle is about to stop, the components are unloaded.
+ *
+ * @param event The <code>BundleEvent</code> representing the bundle state
+ * change.
+ */
+ public void bundleChanged(BundleEvent event) {
+ switch (event.getType()) {
+ case BundleEvent.STARTED:
+ // register resource provider for the started bundle
+ addBundleResourceProvider(event.getBundle());
+ break;
+
+ case BundleEvent.STOPPED:
+ // remove resource provider after the bundle has stopped
+ removeBundleResourceProvider(event.getBundle());
+ break;
+ }
+ }
+
+ // ---------- Bundle provided resources -----------------------------------
+
+ private void addBundleResourceProvider(Bundle bundle) {
+ String prefixes = (String) bundle.getHeaders().get(
+ BUNDLE_RESOURCE_ROOTS);
+ if (prefixes != null) {
+ BundleResourceProvider brp = new BundleResourceProvider(bundle,
+ prefixes);
+ brp.registerService(bundleContext);
+ bundleResourceProviderMap.put(bundle.getBundleId(), brp);
+ }
+ }
+
+ private void removeBundleResourceProvider(Bundle bundle) {
+ BundleResourceProvider brp = bundleResourceProviderMap.remove(bundle.getBundleId());
+ if (brp != null) {
+ brp.unregisterService();
+ }
+ }
+
+ /**
+ * Helper method to call the static method <code>methodName</code> on the
+ * class <code>clazzName</code> with the given <code>args</code>. This
+ * method operates exclusively using reflection to prevent any issues if the
+ * class cannot be loaded.
+ * <p>
+ * The goal is to enable running the bundle resource provider without a hard
+ * dependency on the Felix Web Console.
+ *
+ * @param clazzName The fully qualified name of the class whose static
+ * method is to be called.
+ * @param methodName The name of the method to call. This method must be
+ * declared in the given class.
+ * @param argTypes The types of arguments of the methods to be able to find
+ * the method. This may be <code>null</code> if the method has
+ * no arguments.
+ * @param args The actual arguments to the method. This may be
+ * <code>null</code> if the method has no arguments.
+ */
+ private void callMethod(String clazzName, String methodName,
+ Class<?>[] argTypes, Object[] args) {
+ try {
+ Class<?> clazz = getClass().getClassLoader().loadClass(clazzName);
+ Method method = clazz.getDeclaredMethod(methodName, argTypes);
+ if (!method.isAccessible()) {
+ method.setAccessible(true);
+ }
+ method.invoke(null, args);
+ } catch (Throwable t) {
+ // ignore anything
+ }
+ }
+}
diff --git a/src/main/java/org/apache/sling/bundleresource/impl/BundleResource.java b/src/main/java/org/apache/sling/bundleresource/impl/BundleResource.java
new file mode 100644
index 0000000..af49830
--- /dev/null
+++ b/src/main/java/org/apache/sling/bundleresource/impl/BundleResource.java
@@ -0,0 +1,226 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.sling.bundleresource.impl;
+
+import static org.apache.jackrabbit.JcrConstants.NT_FILE;
+import static org.apache.jackrabbit.JcrConstants.NT_FOLDER;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.util.Iterator;
+
+import javax.jcr.RepositoryException;
+import javax.jcr.Session;
+
+import org.apache.sling.adapter.SlingAdaptable;
+import org.apache.sling.api.resource.Resource;
+import org.apache.sling.api.resource.ResourceMetadata;
+import org.apache.sling.api.resource.ResourceResolver;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/** A Resource that wraps a Bundle entry */
+public class BundleResource extends SlingAdaptable implements Resource {
+
+ /** default log */
+ private final Logger log = LoggerFactory.getLogger(getClass());
+
+ private final ResourceResolver resourceResolver;
+
+ private final BundleResourceCache bundle;
+
+ private final MappedPath mappedPath;
+
+ private final String path;
+
+ private URL url;
+
+ private final String resourceType;
+
+ private final ResourceMetadata metadata;
+
+ public static BundleResource getResource(ResourceResolver resourceResolver,
+ BundleResourceCache bundle, MappedPath mappedPath,
+ String resourcePath) {
+
+ String entryPath = mappedPath.getEntryPath(resourcePath);
+
+ // first try, whether the bundle has an entry with a trailing slash
+ // which would be a folder. In this case we check whether the
+ // repository contains an item with the same path. If so, we
+ // don't create a BundleResource but instead return null to be
+ // able to return an item-based resource
+ URL entry = bundle.getEntry(entryPath.concat("/"));
+ if (entry != null) {
+ Session session = resourceResolver.adaptTo(Session.class);
+ if (session != null) {
+ try {
+ if (session.itemExists(resourcePath)) {
+ return null;
+ }
+ } catch (RepositoryException re) {
+ // don't care
+ }
+ }
+
+ // append the slash to path for next steps
+ resourcePath = resourcePath.concat("/");
+ }
+
+ // if there is no entry with a trailing slash, try plain name
+ // which would then of course be a file
+ if (entry == null) {
+ entry = bundle.getEntry(entryPath);
+ }
+
+ // here we either have a folder for which no same-named item exists
+ // or a bundle file
+ if (entry != null) {
+ return new BundleResource(resourceResolver, bundle, mappedPath,
+ resourcePath);
+ }
+
+ // the bundle does not contain the path
+ return null;
+ }
+
+ public BundleResource(ResourceResolver resourceResolver,
+ BundleResourceCache bundle, MappedPath mappedPath,
+ String resourcePath) {
+
+ this.resourceResolver = resourceResolver;
+ this.bundle = bundle;
+ this.mappedPath = mappedPath;
+
+ metadata = new ResourceMetadata();
+ metadata.setResolutionPath(resourcePath);
+ metadata.setCreationTime(bundle.getBundle().getLastModified());
+ metadata.setModificationTime(bundle.getBundle().getLastModified());
+
+ if (resourcePath.endsWith("/")) {
+
+ this.path = resourcePath.substring(0, resourcePath.length() - 1);
+ this.resourceType = NT_FOLDER;
+
+ } else {
+
+ this.path = resourcePath;
+ this.resourceType = NT_FILE;
+
+ try {
+ URL url = bundle.getEntry(mappedPath.getEntryPath(resourcePath));
+ metadata.setContentLength(url.openConnection().getContentLength());
+ } catch (Exception e) {
+ // don't care, we just have no content length
+ }
+ }
+ }
+
+ public String getPath() {
+ return path;
+ }
+
+ public String getResourceType() {
+ return resourceType;
+ }
+
+ /** Returns <code>null</code>, bundle resources have no super type */
+ public String getResourceSuperType() {
+ return null;
+ }
+
+ public ResourceMetadata getResourceMetadata() {
+ return metadata;
+ }
+
+ public ResourceResolver getResourceResolver() {
+ return resourceResolver;
+ }
+
+ @SuppressWarnings("unchecked")
+ public <Type> Type adaptTo(Class<Type> type) {
+ if (type == InputStream.class) {
+ return (Type) getInputStream(); // unchecked cast
+ } else if (type == URL.class) {
+ return (Type) getURL(); // unchecked cast
+ }
+
+ // fall back to nothing
+ return super.adaptTo(type);
+ }
+
+ public String toString() {
+ return getClass().getSimpleName() + ", type=" + getResourceType()
+ + ", path=" + getPath();
+ }
+
+ // ---------- internal -----------------------------------------------------
+
+ /**
+ * Returns a stream to the bundle entry if it is a file. Otherwise returns
+ * <code>null</code>.
+ */
+ private InputStream getInputStream() {
+ // implement this for files only
+ if (isFile()) {
+ try {
+ URL url = getURL();
+ if (url != null) {
+ return url.openStream();
+ }
+ } catch (IOException ioe) {
+ log.error(
+ "getInputStream: Cannot get input stream for " + this, ioe);
+ }
+ }
+
+ // otherwise there is no stream
+ return null;
+ }
+
+ private URL getURL() {
+ if (url == null) {
+ try {
+ url = new URL(BundleResourceURLStreamHandler.PROTOCOL, null,
+ -1, path, new BundleResourceURLStreamHandler(
+ bundle.getBundle(), mappedPath.getEntryPath(path)));
+ } catch (MalformedURLException mue) {
+ log.error("getURL: Cannot get URL for " + this, mue);
+ }
+ }
+
+ return url;
+ }
+
+ Iterator<Resource> listChildren() {
+ return new BundleResourceIterator(this);
+ }
+
+ BundleResourceCache getBundle() {
+ return bundle;
+ }
+
+ MappedPath getMappedPath() {
+ return mappedPath;
+ }
+
+ boolean isFile() {
+ return NT_FILE.equals(getResourceType());
+ }
+}
diff --git a/src/main/java/org/apache/sling/bundleresource/impl/BundleResourceCache.java b/src/main/java/org/apache/sling/bundleresource/impl/BundleResourceCache.java
new file mode 100644
index 0000000..55b5aa5
--- /dev/null
+++ b/src/main/java/org/apache/sling/bundleresource/impl/BundleResourceCache.java
@@ -0,0 +1,282 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.sling.bundleresource.impl;
+
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.util.Collections;
+import java.util.Enumeration;
+import java.util.Iterator;
+import java.util.LinkedHashMap;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+import java.util.Map.Entry;
+
+import org.osgi.framework.Bundle;
+
+/**
+ * The <code>BundleResourceCache</code> implements a simple caching for
+ * resources provided from a bundle. Each {@link BundleResourceProvider}
+ * instance uses an instance of this class to access the bundle resources (or
+ * bundle entries) through the cache.
+ * <p>
+ * The cache on the one hand caches single entries as URLs. The other part of
+ * the cache is for the child entries of a given bundle entry path. This caches
+ * lists of strings (entry path).
+ * <p>
+ * Currently the cache limits are fixed at {@value #CACHE_SIZE} for the entries
+ * cache and at {@value #LIST_CACHE_SIZE} for the child entries cache.
+ */
+class BundleResourceCache {
+
+ /**
+ * The maximum size of the single entry cache (value is 50).
+ */
+ private static final int CACHE_SIZE = 50;
+
+ /**
+ * The maximum size of the child entry cache (value is 20).
+ */
+ private static final int LIST_CACHE_SIZE = 20;
+
+ /**
+ * Sentinel for the single entry cache representing a missing entry to
+ * prevent looking for non-existing bundle entries multiple times (value is
+ * "file:///not_found").
+ */
+ private static final URL NOT_FOUND_URL;
+
+ /**
+ * Sentinel for the child entry cache representing a missing child list for
+ * a given path to prevent looking for non-existing bundle entries multiple
+ * times (value is an empty list).
+ */
+ private static final List<String> NOT_FOUND_CHILDREN = Collections.<String> emptyList();
+
+ /**
+ * Single entry cache. This is a synchronized map with a size limit.
+ */
+ private final Map<String, URL> cache;
+
+ /**
+ * The child entry cache. This is a synchronized map with a size limit.
+ */
+ private final Map<String, List<String>> listCache;
+
+ /**
+ * The Bundle providing the resource entries.
+ */
+ private final Bundle bundle;
+
+ // static initializer setting the NOT_FOUND_URL. Because the
+ // constructor may throw an exception we use a static initializer
+ // which fails the class initialization in the unlikely case
+ // of the URL constructor failing.
+ static {
+ try {
+ NOT_FOUND_URL = new URL("file:/not_found");
+ } catch (MalformedURLException mue) {
+ throw new ExceptionInInitializerError(mue);
+ }
+ }
+
+ /**
+ * Creates a new instance of this class providing access to the entries in
+ * the given <code>bundle</code>.
+ *
+ * @param bundle
+ */
+ BundleResourceCache(Bundle bundle) {
+ this.bundle = bundle;
+
+ // create the limited maps wrapping in synchronized maps
+ this.cache = Collections.synchronizedMap(new BundleResourceMap<String, URL>(
+ CACHE_SIZE));
+ this.listCache = Collections.synchronizedMap(new BundleResourceMap<String, List<String>>(
+ LIST_CACHE_SIZE));
+ }
+
+ /**
+ * Returns the <code>Bundle</code> to which this instance provides access.
+ */
+ Bundle getBundle() {
+ return bundle;
+ }
+
+ /**
+ * Returns the entry in the underlying bundle at the given path. This path
+ * is assumed to be an absolute path. If relative it is resolved relative to
+ * the bundle root.
+ * <p>
+ * This method is backed by the <code>Bundle.getEntry(String)</code>
+ * method.
+ *
+ * @param path The path to the bundle entry to return
+ * @return The URL to access the bundle entry or <code>null</code> if the
+ * bundle does not contain the request entry.
+ */
+ URL getEntry(String path) {
+ URL url = cache.get(path);
+ if (url == null) {
+ url = bundle.getEntry(path);
+
+ if (url == null) {
+ url = NOT_FOUND_URL;
+ }
+
+ cache.put(path, url);
+ }
+
+ return (url == NOT_FOUND_URL) ? null : url;
+ }
+
+ /**
+ * Returns a list of bundle entry paths considered children of the given
+ * <code>parentPath</code>. This parent path is assumed to be an absolute
+ * path. If relative it is resolved relative to the bundle root.
+ * <p>
+ * This method is backed by the <code>Bundle.getEntryPaths(String)</code>
+ * method but returns an <code>Iterator<String></code> instead of an
+ * <code>Enumeration</code> of strings.
+ *
+ * @param parentPath The path to the parent entry whose child entries are to
+ * be returned.
+ * @return An <code>Iterator<String></code> providing the paths of
+ * entries considered direct children of the <code>parentPath</code>
+ * or <code>null</code> if the parent entry does not exist.
+ */
+ Iterator<String> getEntryPaths(String path) {
+ List<String> list = listCache.get(path);
+ if (list == null) {
+
+ @SuppressWarnings("unchecked")
+ Enumeration<String> entries = bundle.getEntryPaths(path);
+ if (entries != null && entries.hasMoreElements()) {
+ list = new LinkedList<String>();
+ while (entries.hasMoreElements()) {
+ list.add(entries.nextElement());
+ }
+ }
+
+ if (list == null) {
+ list = NOT_FOUND_CHILDREN;
+ }
+
+ listCache.put(path, list);
+ }
+
+ return (list == NOT_FOUND_CHILDREN) ? null : list.iterator();
+ }
+
+ // ---------- Management API
+
+ /**
+ * Returns the current number of entries stored in the entry cache. This
+ * number includes "negative" entries, which are requested entries not found
+ * in the bundle.
+ */
+ int getEntryCacheSize() {
+ return cache.size();
+ }
+
+ /**
+ * Returns the maximum number of entries to be stored in the cache. This
+ * number is currently fixed at {@link #CACHE_SIZE}
+ */
+ int getEntryCacheMaxSize() {
+ return CACHE_SIZE;
+ }
+
+ /**
+ * Returns the current number of list entries stored in the list cache. This
+ * number includes "negative" list entries, which are requested list entries
+ * not found in the bundle.
+ */
+ int getListCacheSize() {
+ return listCache.size();
+ }
+
+ /**
+ * Returns the maximum number of list entries to be stored in the cache.
+ * This number is currently fixed at {@link #LIST_CACHE_SIZE}
+ */
+ int getListCacheMaxSize() {
+ return LIST_CACHE_SIZE;
+ }
+
+ // ---------- inner class
+
+ /**
+ * The <code>BundleResourceMap</code> class extends the
+ * <code>LinkedHashMap</code> class overwriting the
+ * {@link #removeEldestEntry(Entry)} method to implement the size limit,
+ * which is set in the constructor.
+ */
+ private static class BundleResourceMap<K, V> extends
+ LinkedHashMap<String, V> {
+
+ /**
+ * The default size of a bundle resource cache (value is 20).
+ */
+ private static final int DEFAULT_LIMIT = 20;
+
+ /**
+ * The limit configured for this map.
+ */
+ private final int limit;
+
+ /**
+ * Creates a new instance of this size limited map.
+ *
+ * @param limit The maximum number of entries in this map. If this value
+ * is less than or equal to zero, the default size of
+ * {@link #DEFAULT_LIMIT} is used.
+ */
+ BundleResourceMap(int limit) {
+ // deliberately chosen initial size and load factor, but
+ // we need the access-order to implement the LRU mechanism
+ super(8, 0.75f, true);
+
+ // normalize size to a possitive number
+ if (limit <= 0) {
+ limit = DEFAULT_LIMIT;
+ }
+
+ this.limit = limit;
+ }
+
+ /**
+ * Returns the maximum number of entries to be stored in this map.
+ */
+ int getLimit() {
+ return limit;
+ }
+
+ /**
+ * Returns <code>true</code> if the current number of elements in the
+ * map exceeds the configured limit.
+ */
+ @Override
+ protected boolean removeEldestEntry(Entry<String, V> eldest) {
+ return size() > limit;
+ }
+ }
+
+}
diff --git a/src/main/java/org/apache/sling/bundleresource/impl/BundleResourceIterator.java b/src/main/java/org/apache/sling/bundleresource/impl/BundleResourceIterator.java
new file mode 100644
index 0000000..de19d7d
--- /dev/null
+++ b/src/main/java/org/apache/sling/bundleresource/impl/BundleResourceIterator.java
@@ -0,0 +1,153 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.sling.bundleresource.impl;
+
+import java.util.Iterator;
+import java.util.NoSuchElementException;
+
+import org.apache.sling.api.resource.Resource;
+import org.apache.sling.api.resource.ResourceResolver;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * The <code>BundleResourceIterator</code> class is a resource iterator, which
+ * returns resources for each Bundle entry of an underlying enumeration of
+ * Bundle entry paths.
+ */
+class BundleResourceIterator implements Iterator<Resource> {
+
+ /** default log */
+ private final Logger log = LoggerFactory.getLogger(getClass());
+
+ /** The bundle resource resolver */
+ private final ResourceResolver resourceResolver;
+
+ /** Bundle providing the entry resources */
+ private final BundleResourceCache bundle;
+
+ private final MappedPath mappedPath;
+
+ /** Underlying bundle entry path enumeration */
+ private final Iterator<String> entries;
+
+ /** The length of the parent entry path, see seek() */
+ private final int prefixLength;
+
+ /** The prefetched next iterator entry, null at the end of iterating */
+ private Resource nextResult;
+
+ /**
+ * Creates an instance using the given parent bundle resource.
+ */
+ BundleResourceIterator(BundleResource parent) {
+
+ if (parent.isFile()) {
+
+ // if the parent is a file, the iterator is empty
+ this.resourceResolver = null;
+ this.bundle = null;
+ this.entries = null;
+ this.prefixLength = 0;
+ this.mappedPath = null;
+ this.nextResult = null;
+
+ } else {
+ // trailing slash to enumerate children
+ String parentPath = parent.getPath().concat("/");
+
+ this.resourceResolver = parent.getResourceResolver();
+ this.bundle = parent.getBundle();
+ this.mappedPath = parent.getMappedPath();
+ this.entries = parent.getBundle().getEntryPaths(parentPath);
+ this.prefixLength = parentPath.length();
+
+ this.nextResult = (entries != null) ? seek() : null;
+ }
+ }
+
+ BundleResourceIterator(ResourceResolver resourceResolver, BundleResourceCache bundle,
+ MappedPath mappedPath, String parentPath) {
+
+ // trailing slash to enumerate children
+ if (!parentPath.endsWith("/")) {
+ parentPath = parentPath.concat("/");
+ }
+
+ this.resourceResolver = resourceResolver;
+ this.bundle = bundle;
+ this.mappedPath = mappedPath;
+ this.entries = bundle.getEntryPaths(parentPath);
+ this.prefixLength = parentPath.length();
+
+ this.nextResult = (entries != null) ? seek() : null;
+ }
+
+ /** Returns true if there is another Resource available */
+ public boolean hasNext() {
+ return nextResult != null;
+ }
+
+ /** Returns the next resource in the iterator */
+ public Resource next() {
+ if (!hasNext()) {
+ throw new NoSuchElementException();
+ }
+
+ Resource result = nextResult;
+ nextResult = seek();
+ return result;
+ }
+
+ /**
+ * Throws <code>UnsupportedOperationException</code> as this method is not
+ * supported by this implementation.
+ */
+ public void remove() {
+ throw new UnsupportedOperationException();
+ }
+
+ /**
+ * Scans the entry path enumeration looking for the next entry being a
+ * direct child of the parent resource.
+ */
+ private Resource seek() {
+ while (entries.hasNext()) {
+ String entry = entries.next();
+
+ // require leading slash
+ if (!entry.startsWith("/")) {
+ entry = "/" + entry;
+ }
+
+ int slash = entry.indexOf('/', prefixLength);
+ if (slash < 0 || slash == entry.length() - 1) {
+ log.debug("seek: Using entry {}", entry);
+ return new BundleResource(resourceResolver, bundle, mappedPath,
+ entry);
+ }
+
+ log.debug("seek: Ignoring entry {}", entry);
+ }
+
+ // no more results
+ log.debug("seek: No more nodes, iterator exhausted");
+ return null;
+ }
+}
diff --git a/src/main/java/org/apache/sling/bundleresource/impl/BundleResourceProvider.java b/src/main/java/org/apache/sling/bundleresource/impl/BundleResourceProvider.java
new file mode 100644
index 0000000..2cbee15
--- /dev/null
+++ b/src/main/java/org/apache/sling/bundleresource/impl/BundleResourceProvider.java
@@ -0,0 +1,157 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.sling.bundleresource.impl;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Dictionary;
+import java.util.Hashtable;
+import java.util.Iterator;
+import java.util.List;
+import java.util.StringTokenizer;
+
+import javax.servlet.http.HttpServletRequest;
+
+import org.apache.sling.api.SlingException;
+import org.apache.sling.api.resource.Resource;
+import org.apache.sling.api.resource.ResourceProvider;
+import org.apache.sling.api.resource.ResourceResolver;
+import org.osgi.framework.Bundle;
+import org.osgi.framework.BundleContext;
+import org.osgi.framework.Constants;
+import org.osgi.framework.ServiceRegistration;
+
+public class BundleResourceProvider implements ResourceProvider {
+
+ /** The bundle providing the resources */
+ private final BundleResourceCache bundle;
+
+ /** The root paths */
+ private final MappedPath[] roots;
+
+ private ServiceRegistration serviceRegistration;
+
+ /**
+ * Creates Bundle resource provider accessing entries in the given Bundle an
+ * supporting resources below root paths given by the rootList which is a
+ * comma (and whitespace) separated list of absolute paths.
+ */
+ public BundleResourceProvider(Bundle bundle, String rootList) {
+ this.bundle = new BundleResourceCache(bundle);
+
+ StringTokenizer pt = new StringTokenizer(rootList, ", \t\n\r\f");
+ List<MappedPath> prefixList = new ArrayList<MappedPath>();
+ while (pt.hasMoreTokens()) {
+ String resourceRoot = pt.nextToken();
+ if (resourceRoot.length() > 0) {
+ prefixList.add(MappedPath.create(resourceRoot));
+ }
+ }
+ this.roots = prefixList.toArray(new MappedPath[prefixList.size()]);
+ }
+
+ void registerService(BundleContext context) {
+ Dictionary<String, Object> props = new Hashtable<String, Object>();
+ props.put(Constants.SERVICE_DESCRIPTION,
+ "Provider of Bundle based Resources");
+ props.put(Constants.SERVICE_VENDOR, "The Apache Software Foundation");
+ props.put(ROOTS, getRoots());
+
+ serviceRegistration = context.registerService(SERVICE_NAME, this, props);
+ }
+
+ void unregisterService() {
+ if (serviceRegistration != null) {
+ serviceRegistration.unregister();
+ }
+ }
+
+ //---------- Web Console plugin support
+
+ BundleResourceCache getBundleResourceCache() {
+ return bundle;
+ }
+
+ MappedPath[] getMappedPaths() {
+ return roots;
+ }
+
+ //---------- internal
+
+ /** Returns the root paths */
+ private String[] getRoots() {
+ String[] rootPaths = new String[roots.length];
+ for (int i = 0; i < roots.length; i++) {
+ rootPaths[i] = roots[i].getResourceRoot();
+ }
+ return rootPaths;
+ }
+
+ private MappedPath getMappedPath(String resourcePath) {
+ for (MappedPath mappedPath : roots) {
+ if (mappedPath.isChild(resourcePath)) {
+ return mappedPath;
+ }
+ }
+
+ return null;
+ }
+
+ public Resource getResource(ResourceResolver resourceResolver,
+ HttpServletRequest request, String path) {
+ return getResource(resourceResolver, path);
+ }
+
+ /**
+ * Returns a BundleResource for the path if such an entry exists in the
+ * bundle of this provider. The JcrResourceResolver is ignored by this
+ * implementation.
+ */
+ public Resource getResource(ResourceResolver resourceResolver, String path) {
+ MappedPath mappedPath = getMappedPath(path);
+ if (mappedPath != null) {
+ return BundleResource.getResource(resourceResolver, bundle,
+ mappedPath, path);
+ }
+
+ return null;
+ }
+
+ public Iterator<Resource> listChildren(final Resource parent)
+ throws SlingException {
+
+ // bundle resources can handle this request directly
+ if (parent instanceof BundleResource) {
+ return ((BundleResource) parent).listChildren();
+ }
+
+ // ensure this provider may have children of the parent
+ String parentPath = parent.getPath();
+ MappedPath mappedPath = getMappedPath(parentPath);
+ if (mappedPath != null) {
+ return new BundleResourceIterator(parent.getResourceResolver(),
+ bundle, mappedPath, parentPath);
+ }
+
+ // the parent resource cannot have children in this provider,
+ // though this is basically not expected, we still have to
+ // be prepared for such a situation
+ return Collections.<Resource> emptyList().iterator();
+ }
+}
diff --git a/src/main/java/org/apache/sling/bundleresource/impl/BundleResourceURLConnection.java b/src/main/java/org/apache/sling/bundleresource/impl/BundleResourceURLConnection.java
new file mode 100644
index 0000000..c121be4
--- /dev/null
+++ b/src/main/java/org/apache/sling/bundleresource/impl/BundleResourceURLConnection.java
@@ -0,0 +1,112 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.sling.bundleresource.impl;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.URL;
+import java.net.URLConnection;
+
+import org.osgi.framework.Bundle;
+
+/**
+ * A Bundle based <code>UIRLConnection</code> which uses the bundle's last
+ * modification time as the last modification time of the URL in contrast to the
+ * (Apache Felix) URLConnection used for the bundle entry, which always returns
+ * zero.
+ */
+public class BundleResourceURLConnection extends URLConnection {
+
+ /** The bundle owning the resource underlying the URLConnection */
+ private final Bundle bundle;
+
+ private final String bundlePath;
+
+ /** The original URLConnection */
+ private URLConnection delegatee;
+
+ protected BundleResourceURLConnection(Bundle bundle, String bundlePath, URL url) {
+ super(url);
+
+ this.bundle = bundle;
+ this.bundlePath = bundlePath;
+ }
+
+ /**
+ * Connects this URLConnection to access the data and metadata such as the
+ * content length, last modification time and content type.
+ */
+ public synchronized void connect() throws IOException {
+ if (!connected) {
+ URL url = bundle.getEntry(bundlePath);
+ if (url == null) {
+ throw new IOException("Cannot find entry " + bundlePath
+ + " in bundle " + bundle + " for URL " + url);
+ }
+
+ delegatee = url.openConnection();
+
+ connected = true;
+ }
+ }
+
+ /** Returns the input stream of the Bundle provided URLConnection */
+ public InputStream getInputStream() throws IOException {
+ connect();
+
+ return delegatee.getInputStream();
+ }
+
+ /** Returns the content length of the Bundle provided URLConnection */
+ public int getContentLength() {
+ try {
+ connect();
+ } catch (IOException ex) {
+ return -1;
+ }
+
+ return delegatee.getContentLength();
+ }
+
+ /**
+ * Returns the last modification time of the underlying bundle, which is the
+ * last time the bundle was installed or updated
+ */
+ public long getLastModified() {
+ try {
+ connect();
+ } catch (IOException ex) {
+ return 0;
+ }
+
+ return bundle.getLastModified();
+ }
+
+ /** Returns the content type of the Bundle provided URLConnection */
+ public String getContentType() {
+ try {
+ connect();
+ } catch (IOException ex) {
+ return null;
+ }
+
+ return delegatee.getContentType();
+ }
+
+}
diff --git a/src/main/java/org/apache/sling/bundleresource/impl/BundleResourceURLStreamHandler.java b/src/main/java/org/apache/sling/bundleresource/impl/BundleResourceURLStreamHandler.java
new file mode 100644
index 0000000..a27585a
--- /dev/null
+++ b/src/main/java/org/apache/sling/bundleresource/impl/BundleResourceURLStreamHandler.java
@@ -0,0 +1,51 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.sling.bundleresource.impl;
+
+import java.io.IOException;
+import java.net.URL;
+import java.net.URLConnection;
+import java.net.URLStreamHandler;
+
+import org.osgi.framework.Bundle;
+
+class BundleResourceURLStreamHandler extends URLStreamHandler {
+
+ static final String PROTOCOL = "bundle";
+
+ private final Bundle bundle;
+
+ private final String bundlePath;
+
+ BundleResourceURLStreamHandler(Bundle bundle, String bundlePath) {
+ this.bundle = bundle;
+ this.bundlePath = bundlePath;
+ }
+
+ @Override
+ protected URLConnection openConnection(URL u) throws IOException {
+ if (!PROTOCOL.equals(u.getProtocol())) {
+ throw new IOException("Cannot open connection to " + u
+ + ", wrong protocol");
+ }
+
+ return new BundleResourceURLConnection(bundle, bundlePath, u);
+ }
+
+}
diff --git a/src/main/java/org/apache/sling/bundleresource/impl/BundleResourceWebConsolePlugin.java b/src/main/java/org/apache/sling/bundleresource/impl/BundleResourceWebConsolePlugin.java
new file mode 100644
index 0000000..19dd77a
--- /dev/null
+++ b/src/main/java/org/apache/sling/bundleresource/impl/BundleResourceWebConsolePlugin.java
@@ -0,0 +1,222 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.sling.bundleresource.impl;
+
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.util.ArrayList;
+import java.util.Dictionary;
+import java.util.Hashtable;
+import java.util.List;
+
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+import org.apache.felix.webconsole.AbstractWebConsolePlugin;
+import org.apache.felix.webconsole.WebConsoleConstants;
+import org.apache.sling.api.resource.ResourceProvider;
+import org.osgi.framework.Bundle;
+import org.osgi.framework.BundleContext;
+import org.osgi.framework.Constants;
+import org.osgi.framework.ServiceReference;
+import org.osgi.framework.ServiceRegistration;
+import org.osgi.util.tracker.ServiceTracker;
+
+class BundleResourceWebConsolePlugin extends AbstractWebConsolePlugin {
+
+ private static final String LABEL = "bundleresources";
+
+ private ServiceRegistration serviceRegistration;
+
+ private ServiceTracker providerTracker;
+
+ private List<BundleResourceProvider> provider = new ArrayList<BundleResourceProvider>();
+
+ //--------- setup and shutdown
+
+ private static BundleResourceWebConsolePlugin INSTANCE;
+
+ static void initPlugin(BundleContext context) {
+ if (INSTANCE == null) {
+ BundleResourceWebConsolePlugin tmp = new BundleResourceWebConsolePlugin();
+ tmp.activate(context);
+ INSTANCE = tmp;
+ }
+ }
+
+ static void destroyPlugin() {
+ if (INSTANCE != null) {
+ try {
+ INSTANCE.deactivate();
+ } finally {
+ INSTANCE = null;
+ }
+ }
+ }
+
+ // private constructor to force using static setup and shutdown
+ private BundleResourceWebConsolePlugin() {
+ }
+
+ //---------- AbstractWebConsolePlugin implementation
+
+ @Override
+ public String getLabel() {
+ return LABEL;
+ }
+
+ @Override
+ public String getTitle() {
+ return "Bundle Resource Provider";
+ }
+
+ @Override
+ protected void renderContent(HttpServletRequest req, HttpServletResponse res)
+ throws IOException {
+
+ PrintWriter pw = res.getWriter();
+
+ pw.println("<table class='content' cellpadding='0' cellspacing='0' width='100%'>");
+
+ pw.println("<tr class='content'>");
+ pw.println("<th colspan='2' class='content container'>Bundle Resource Provider</th>");
+ pw.println("</tr>");
+
+ BundleResourceProvider[] brp = provider.toArray(new BundleResourceProvider[provider.size()]);
+ for (BundleResourceProvider bundleResourceProvider : brp) {
+
+ BundleResourceCache cache = bundleResourceProvider.getBundleResourceCache();
+ MappedPath[] paths = bundleResourceProvider.getMappedPaths();
+
+ pw.println("<tr class='content'>");
+
+ pw.println("<td class='content'>");
+ pw.println(cache.getBundle().getBundleId());
+ pw.println("</td>");
+
+ pw.println("<td class='content'>");
+ pw.println(getName(cache.getBundle()));
+ pw.println("</td>");
+
+ pw.println("</tr>");
+
+ pw.println("<tr class='content'>");
+ pw.println("<td class='content'> </td>");
+
+ pw.println("<td class='content'>");
+
+ pw.println("<table>");
+
+ pw.println("<tr>");
+ pw.println("<td>Mappings</td>");
+ pw.println("<td>");
+ for (MappedPath mappedPath : paths) {
+ pw.print(mappedPath.getResourceRoot());
+ if (mappedPath.getEntryRoot() != null) {
+ pw.print(" ==> ");
+ pw.print(mappedPath.getEntryRoot());
+ }
+ pw.print("<br>");
+ }
+ pw.println("</td>");
+ pw.println("</tr>");
+
+ pw.println("<tr>");
+ pw.println("<td>Entry Cache</td>");
+ pw.printf("<td>Size: %d, Limit: %d</td>%n",
+ cache.getEntryCacheSize(), cache.getEntryCacheMaxSize());
+ pw.println("</tr>");
+
+ pw.println("<tr>");
+ pw.println("<td>List Cache</td>");
+ pw.printf("<td>Size: %d, Limit: %d</td>%n",
+ cache.getListCacheSize(), cache.getListCacheMaxSize());
+ pw.println("</tr>");
+
+ pw.println("</table>");
+
+ pw.println("</td>");
+ pw.println("</tr>");
+ }
+
+ pw.println("</table>");
+
+ }
+
+ public void activate(BundleContext context) {
+ super.activate(context);
+
+ providerTracker = new ServiceTracker(context,
+ ResourceProvider.SERVICE_NAME, null) {
+ @Override
+ public Object addingService(ServiceReference reference) {
+ Object service = super.addingService(reference);
+ if (service instanceof BundleResourceProvider) {
+ provider.add((BundleResourceProvider) service);
+ }
+ return service;
+ }
+
+ @Override
+ public void removedService(ServiceReference reference,
+ Object service) {
+ if (service instanceof BundleResourceProvider) {
+ provider.remove(service);
+ }
+ super.removedService(reference, service);
+ }
+ };
+ providerTracker.open();
+
+ Dictionary<String, Object> props = new Hashtable<String, Object>();
+ props.put(Constants.SERVICE_DESCRIPTION,
+ "Web Console Plugin for Bundle Resource Providers");
+ props.put(Constants.SERVICE_VENDOR, "The Apache Software Foundation");
+ props.put(Constants.SERVICE_PID, getClass().getName());
+ props.put(WebConsoleConstants.PLUGIN_LABEL, LABEL);
+
+ serviceRegistration = context.registerService(
+ WebConsoleConstants.SERVICE_NAME, this, props);
+ }
+
+ public void deactivate() {
+ if (serviceRegistration != null) {
+ serviceRegistration.unregister();
+ serviceRegistration = null;
+ }
+
+ if (providerTracker != null) {
+ providerTracker.close();
+ providerTracker = null;
+ }
+
+ super.deactivate();
+ }
+
+ private String getName(Bundle bundle) {
+ String name = (String) bundle.getHeaders().get(Constants.BUNDLE_NAME);
+ if (name == null) {
+ name = bundle.getSymbolicName();
+ if (name == null) {
+ name = bundle.getLocation();
+ }
+ }
+ return name;
+ }
+}
diff --git a/src/main/java/org/apache/sling/bundleresource/impl/MappedPath.java b/src/main/java/org/apache/sling/bundleresource/impl/MappedPath.java
new file mode 100644
index 0000000..98b2fc0
--- /dev/null
+++ b/src/main/java/org/apache/sling/bundleresource/impl/MappedPath.java
@@ -0,0 +1,101 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.sling.bundleresource.impl;
+
+class MappedPath {
+
+ private static final char prefixSeparatorChar = '!';
+ private final String resourceRoot;
+ private final String resourceRootPrefix;
+ private final String entryRoot;
+ private final String entryRootPrefix;
+
+ static MappedPath create(String configPath) {
+ String resourceRoot;
+ String entryRoot;
+ int prefixSep = configPath.indexOf(prefixSeparatorChar);
+ if (prefixSep >= 0) {
+ entryRoot = configPath.substring(prefixSep + 1);
+ resourceRoot = configPath.substring(0, prefixSep).concat(entryRoot);
+ } else {
+ resourceRoot = configPath;
+ entryRoot = null;
+ }
+ return new MappedPath(resourceRoot, entryRoot);
+ }
+
+ MappedPath(String resourceRoot, String entryRoot) {
+ this.resourceRoot = resourceRoot;
+ this.resourceRootPrefix = ensureTrailingSlash(resourceRoot);
+ this.entryRoot = entryRoot;
+ this.entryRootPrefix = ensureTrailingSlash(entryRoot);
+ }
+
+ boolean isChild(String resourcePath) {
+ return resourcePath.startsWith(resourceRootPrefix)
+ || resourcePath.equals(resourceRoot);
+ }
+
+ String getEntryPath(String resourcePath) {
+ if (entryRootPrefix == null) {
+ return resourcePath;
+ }
+
+ if (resourcePath.startsWith(resourceRootPrefix)) {
+ return entryRootPrefix.concat(resourcePath.substring(resourceRootPrefix.length()));
+ } else if (resourcePath.equals(resourceRoot)) {
+ return entryRoot;
+ }
+
+ return null;
+ }
+
+ String getResourceRoot() {
+ return resourceRoot;
+ }
+
+ String getResourceRootPrefix() {
+ return resourceRootPrefix;
+ }
+
+ String getEntryRoot() {
+ return entryRoot;
+ }
+
+ String getEntryRootPrefix() {
+ return entryRootPrefix;
+ }
+
+ private static String ensureTrailingSlash(String path) {
+ if (path == null || path.length() == 0) {
+ return null;
+ }
+
+ if (!path.endsWith("/")) {
+ return path.concat("/");
+ }
+
+ return path;
+ }
+
+ @Override
+ public String toString() {
+ return "MappedPath: " + getResourceRoot() + " -> " + getEntryRoot();
+ }
+}
diff --git a/src/main/resources/META-INF/DISCLAIMER b/src/main/resources/META-INF/DISCLAIMER
new file mode 100644
index 0000000..90850c2
--- /dev/null
+++ b/src/main/resources/META-INF/DISCLAIMER
@@ -0,0 +1,7 @@
+Apache Sling is an effort undergoing incubation at The Apache Software Foundation (ASF),
+sponsored by the Apache Jackrabbit PMC. Incubation is required of all newly accepted
+projects until a further review indicates that the infrastructure, communications,
+and decision making process have stabilized in a manner consistent with other
+successful ASF projects. While incubation status is not necessarily a reflection of
+the completeness or stability of the code, it does indicate that the project has yet
+to be fully endorsed by the ASF.
\ No newline at end of file
diff --git a/src/main/resources/META-INF/LICENSE b/src/main/resources/META-INF/LICENSE
new file mode 100644
index 0000000..d645695
--- /dev/null
+++ b/src/main/resources/META-INF/LICENSE
@@ -0,0 +1,202 @@
+
+ Apache License
+ Version 2.0, January 2004
+ http://www.apache.org/licenses/
+
+ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+ 1. Definitions.
+
+ "License" shall mean the terms and conditions for use, reproduction,
+ and distribution as defined by Sections 1 through 9 of this document.
+
+ "Licensor" shall mean the copyright owner or entity authorized by
+ the copyright owner that is granting the License.
+
+ "Legal Entity" shall mean the union of the acting entity and all
+ other entities that control, are controlled by, or are under common
+ control with that entity. For the purposes of this definition,
+ "control" means (i) the power, direct or indirect, to cause the
+ direction or management of such entity, whether by contract or
+ otherwise, or (ii) ownership of fifty percent (50%) or more of the
+ outstanding shares, or (iii) beneficial ownership of such entity.
+
+ "You" (or "Your") shall mean an individual or Legal Entity
+ exercising permissions granted by this License.
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+ "Source" form shall mean the preferred form for making modifications,
+ including but not limited to software source code, documentation
+ source, and configuration files.
+
+ "Object" form shall mean any form resulting from mechanical
+ transformation or translation of a Source form, including but
+ not limited to compiled object code, generated documentation,
+ and conversions to other media types.
+
+ "Work" shall mean the work of authorship, whether in Source or
+ Object form, made available under the License, as indicated by a
+ copyright notice that is included in or attached to the work
+ (an example is provided in the Appendix below).
+
+ "Derivative Works" shall mean any work, whether in Source or Object
+ form, that is based on (or derived from) the Work and for which the
+ editorial revisions, annotations, elaborations, or other modifications
+ represent, as a whole, an original work of authorship. For the purposes
+ of this License, Derivative Works shall not include works that remain
+ separable from, or merely link (or bind by name) to the interfaces of,
+ the Work and Derivative Works thereof.
+
+ "Contribution" shall mean any work of authorship, including
+ the original version of the Work and any modifications or additions
+ to that Work or Derivative Works thereof, that is intentionally
+ submitted to Licensor for inclusion in the Work by the copyright owner
+ or by an individual or Legal Entity authorized to submit on behalf of
+ the copyright owner. For the purposes of this definition, "submitted"
+ means any form of electronic, verbal, or written communication sent
+ to the Licensor or its representatives, including but not limited to
+ communication on electronic mailing lists, source code control systems,
+ and issue tracking systems that are managed by, or on behalf of, the
+ Licensor for the purpose of discussing and improving the Work, but
+ excluding communication that is conspicuously marked or otherwise
+ designated in writing by the copyright owner as "Not a Contribution."
+
+ "Contributor" shall mean Licensor and any individual or Legal Entity
+ on behalf of whom a Contribution has been received by Licensor and
+ subsequently incorporated within the Work.
+
+ 2. Grant of Copyright License. Subject to the terms and conditions of
+ this License, each Contributor hereby grants to You a perpetual,
+ worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+ copyright license to reproduce, prepare Derivative Works of,
+ publicly display, publicly perform, sublicense, and distribute the
+ Work and such Derivative Works in Source or Object form.
+
+ 3. Grant of Patent License. Subject to the terms and conditions of
+ this License, each Contributor hereby grants to You a perpetual,
+ worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+ (except as stated in this section) patent license to make, have made,
+ use, offer to sell, sell, import, and otherwise transfer the Work,
+ where such license applies only to those patent claims licensable
+ by such Contributor that are necessarily infringed by their
+ Contribution(s) alone or by combination of their Contribution(s)
+ with the Work to which such Contribution(s) was submitted. If You
+ institute patent litigation against any entity (including a
+ cross-claim or counterclaim in a lawsuit) alleging that the Work
+ or a Contribution incorporated within the Work constitutes direct
+ or contributory patent infringement, then any patent licenses
+ granted to You under this License for that Work shall terminate
+ as of the date such litigation is filed.
+
+ 4. Redistribution. You may reproduce and distribute copies of the
+ Work or Derivative Works thereof in any medium, with or without
+ modifications, and in Source or Object form, provided that You
+ meet the following conditions:
+
+ (a) You must give any other recipients of the Work or
+ Derivative Works a copy of this License; and
+
+ (b) You must cause any modified files to carry prominent notices
+ stating that You changed the files; and
+
+ (c) You must retain, in the Source form of any Derivative Works
+ that You distribute, all copyright, patent, trademark, and
+ attribution notices from the Source form of the Work,
+ excluding those notices that do not pertain to any part of
+ the Derivative Works; and
+
+ (d) If the Work includes a "NOTICE" text file as part of its
+ distribution, then any Derivative Works that You distribute must
+ include a readable copy of the attribution notices contained
+ within such NOTICE file, excluding those notices that do not
+ pertain to any part of the Derivative Works, in at least one
+ of the following places: within a NOTICE text file distributed
+ as part of the Derivative Works; within the Source form or
+ documentation, if provided along with the Derivative Works; or,
+ within a display generated by the Derivative Works, if and
+ wherever such third-party notices normally appear. The contents
+ of the NOTICE file are for informational purposes only and
+ do not modify the License. You may add Your own attribution
+ notices within Derivative Works that You distribute, alongside
+ or as an addendum to the NOTICE text from the Work, provided
+ that such additional attribution notices cannot be construed
+ as modifying the License.
+
+ You may add Your own copyright statement to Your modifications and
+ may provide additional or different license terms and conditions
+ for use, reproduction, or distribution of Your modifications, or
+ for any such Derivative Works as a whole, provided Your use,
+ reproduction, and distribution of the Work otherwise complies with
+ the conditions stated in this License.
+
+ 5. Submission of Contributions. Unless You explicitly state otherwise,
+ any Contribution intentionally submitted for inclusion in the Work
+ by You to the Licensor shall be under the terms and conditions of
+ this License, without any additional terms or conditions.
+ Notwithstanding the above, nothing herein shall supersede or modify
+ the terms of any separate license agreement you may have executed
+ with Licensor regarding such Contributions.
+
+ 6. Trademarks. This License does not grant permission to use the trade
+ names, trademarks, service marks, or product names of the Licensor,
+ except as required for reasonable and customary use in describing the
+ origin of the Work and reproducing the content of the NOTICE file.
+
+ 7. Disclaimer of Warranty. Unless required by applicable law or
+ agreed to in writing, Licensor provides the Work (and each
+ Contributor provides its Contributions) on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+ implied, including, without limitation, any warranties or conditions
+ of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+ PARTICULAR PURPOSE. You are solely responsible for determining the
+ appropriateness of using or redistributing the Work and assume any
+ risks associated with Your exercise of permissions under this License.
+
+ 8. Limitation of Liability. In no event and under no legal theory,
+ whether in tort (including negligence), contract, or otherwise,
+ unless required by applicable law (such as deliberate and grossly
+ negligent acts) or agreed to in writing, shall any Contributor be
+ liable to You for damages, including any direct, indirect, special,
+ incidental, or consequential damages of any character arising as a
+ result of this License or out of the use or inability to use the
+ Work (including but not limited to damages for loss of goodwill,
+ work stoppage, computer failure or malfunction, or any and all
+ other commercial damages or losses), even if such Contributor
+ has been advised of the possibility of such damages.
+
+ 9. Accepting Warranty or Additional Liability. While redistributing
+ the Work or Derivative Works thereof, You may choose to offer,
+ and charge a fee for, acceptance of support, warranty, indemnity,
+ or other liability obligations and/or rights consistent with this
+ License. However, in accepting such obligations, You may act only
+ on Your own behalf and on Your sole responsibility, not on behalf
+ of any other Contributor, and only if You agree to indemnify,
+ defend, and hold each Contributor harmless for any liability
+ incurred by, or claims asserted against, such Contributor by reason
+ of your accepting any such warranty or additional liability.
+
+ END OF TERMS AND CONDITIONS
+
+ APPENDIX: How to apply the Apache License to your work.
+
+ To apply the Apache License to your work, attach the following
+ boilerplate notice, with the fields enclosed by brackets "[]"
+ replaced with your own identifying information. (Don't include
+ the brackets!) The text should be enclosed in the appropriate
+ comment syntax for the file format. We also recommend that a
+ file or class name and description of purpose be included on the
+ same "printed page" as the copyright notice for easier
+ identification within third-party archives.
+
+ Copyright [yyyy] [name of copyright owner]
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
diff --git a/src/main/resources/META-INF/NOTICE b/src/main/resources/META-INF/NOTICE
new file mode 100644
index 0000000..255444e
--- /dev/null
+++ b/src/main/resources/META-INF/NOTICE
@@ -0,0 +1,9 @@
+Apache Sling Bundle Resource Provider
+Copyright 2008-2009 The Apache Software Foundation
+
+Apache Sling is based on source code originally developed
+by Day Software (http://www.day.com/).
+
+This product includes software developed at
+The Apache Software Foundation (http://www.apache.org/).
+
