SLING-8877 add url handler for jcrinstall scheme
diff --git a/src/main/java/org/apache/sling/installer/provider/jcr/impl/JcrInstallUrlHandler.java b/src/main/java/org/apache/sling/installer/provider/jcr/impl/JcrInstallUrlHandler.java
new file mode 100644
index 0000000..98b2ff1
--- /dev/null
+++ b/src/main/java/org/apache/sling/installer/provider/jcr/impl/JcrInstallUrlHandler.java
@@ -0,0 +1,86 @@
+/*
+ * 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.installer.provider.jcr.impl;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.URL;
+import java.net.URLConnection;
+
+import org.apache.felix.scr.annotations.Component;
+import org.apache.felix.scr.annotations.Property;
+import org.apache.felix.scr.annotations.Reference;
+import org.apache.felix.scr.annotations.Service;
+import org.apache.sling.installer.api.info.InfoProvider;
+import org.apache.sling.installer.api.info.ResourceGroup;
+import org.apache.sling.installer.api.tasks.ResourceState;
+import org.osgi.service.url.AbstractURLStreamHandlerService;
+import org.osgi.service.url.URLConstants;
+import org.osgi.service.url.URLStreamHandlerService;
+
+/**
+ * URL Handler for scheme used by the JCR Installer (used e.g. in bundle location URLs).
+ * Returns the original file contained in the underlying repository.
+ *
+ * @see <a href="https://osgi.org/specification/osgi.core/7.0.0/service.url.html#d0e42987">OSGi URL Handlers</a>
+ */
+@Component
+@Service
+@Property(name = URLConstants.URL_HANDLER_PROTOCOL, value = JcrInstaller.URL_SCHEME)
+public class JcrInstallUrlHandler extends AbstractURLStreamHandlerService implements URLStreamHandlerService {
+
+ @Reference
+ private InfoProvider installerInfo;
+
+ private InputStream getInputStreamFromInstallerResourceUrl(URL url) throws IOException {
+ for (ResourceGroup resourceGroup : installerInfo.getInstallationState().getInstalledResources()) {
+ for (org.apache.sling.installer.api.info.Resource resource : resourceGroup.getResources()) {
+ if (resource.getURL().equals(url.toString()) && resource.getState().equals(ResourceState.INSTALLED)) {
+ return resource.getInputStream();
+ }
+ }
+ }
+ throw new IOException("Could not find OSGi installer resource with url " + url);
+ }
+
+ @Override
+ public URLConnection openConnection(URL url) throws IOException {
+ return new InputStreamConnection(url, getInputStreamFromInstallerResourceUrl(url));
+ }
+
+ private static final class InputStreamConnection extends URLConnection {
+
+ private final InputStream input;
+
+ protected InputStreamConnection(URL url, InputStream input) {
+ super(url);
+ this.input = input;
+ }
+
+ @Override
+ public void connect() throws IOException {
+ }
+
+ @Override
+ public InputStream getInputStream() throws IOException {
+ return input;
+ }
+ }
+
+}
