| /* |
| * 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.openejb.config; |
| |
| import org.apache.xbean.finder.archive.Archive; |
| import org.apache.xbean.finder.archive.ClassesArchive; |
| import org.apache.xbean.finder.archive.CompositeArchive; |
| import org.apache.xbean.finder.archive.FilteredArchive; |
| import org.apache.xbean.finder.filter.Filter; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.net.MalformedURLException; |
| import java.net.URL; |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.HashMap; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.Map; |
| |
| import static java.util.Collections.singletonList; |
| import static org.apache.openejb.loader.JarLocation.jarLocation; |
| |
| public class WebappAggregatedArchive implements Archive, ScanConstants { |
| private final Map<URL, List<String>> map = new HashMap<>(); |
| private ScanUtil.ScanHandler handler; |
| private boolean scanXmlExists; // faster than using an empty handler |
| private Archive archive; |
| |
| public WebappAggregatedArchive(final Module module, final Iterable<URL> urls, final Filter filter) { |
| final URL scanXml = (URL) module.getAltDDs().get(ScanConstants.SCAN_XML_NAME); |
| if (scanXml != null) { |
| try { |
| handler = ScanUtil.read(scanXml); |
| scanXmlExists = true; |
| if ((handler.getPackages() == null || handler.getPackages().isEmpty()) |
| && handler.getClasses() != null && !handler.getClasses().isEmpty() |
| && handler.isOptimized()) { // only classes, skip scanning |
| final Collection<Class<?>> loaded = new ArrayList<>(handler.getClasses().size()); |
| for (final String clazz : handler.getClasses()) { |
| try { |
| final Class<?> aClass = module.getClassLoader().loadClass(clazz); |
| loaded.add(aClass); |
| final URL jar = jarLocation(aClass).toURI().toURL(); |
| List<String> list = map.computeIfAbsent(jar, k -> new ArrayList<>()); |
| list.add(clazz); |
| } catch (final ClassNotFoundException e) { |
| throw new IllegalArgumentException(e); |
| } |
| } |
| archive = new ClassesArchive(loaded.toArray(new Class[loaded.size()])); |
| return; |
| } |
| } catch (final IOException e) { |
| // ignored, will not use filtering with scan.xml |
| } |
| } |
| |
| archive = new CompositeArchive(doScan(module.getClassLoader(), urls, filter)); |
| } |
| |
| private List<Archive> doScan(final ClassLoader loader, final Iterable<URL> urls, final Filter filter) { |
| final List<Archive> archives = new ArrayList<>(); |
| for (final URL url : urls) { |
| final List<String> classes = new ArrayList<>(); |
| final Archive archive = new FilteredArchive( |
| new ConfigurableClasspathArchive(loader, singletonList(url)), |
| new ScanXmlSaverFilter(scanXmlExists, handler, classes, filter)); |
| map.put(url, classes); |
| archives.add(archive); |
| } |
| return archives; |
| } |
| |
| // for internal usage mainly like faked modules |
| public WebappAggregatedArchive(final Archive delegate, final Iterable<URL> urls) { |
| final List<Archive> archives = doScan(Thread.currentThread().getContextClassLoader(), urls, null); |
| final List<String> classes = new ArrayList<>(); |
| final Archive archive = new FilteredArchive(delegate, new ScanXmlSaverFilter(scanXmlExists, handler, classes, null)); |
| try { |
| this.map.put(new URL("jar:file://!/META-INF/beans.xml"), classes); |
| } catch (final MalformedURLException e) { |
| throw new IllegalArgumentException(e); |
| } |
| archives.add(archive); |
| this.archive = new CompositeArchive(archives); |
| } |
| |
| public WebappAggregatedArchive(final Module module, final Iterable<URL> urls) { |
| this(module, urls, null); |
| } |
| |
| public WebappAggregatedArchive(final ClassLoader classLoader, final Map<String, Object> altDDs, final Collection<URL> xmls) { |
| this(new ConfigurableClasspathArchive.FakeModule(classLoader, altDDs), xmls); |
| } |
| |
| public Map<URL, List<String>> getClassesMap() { |
| return map; |
| } |
| |
| @Override |
| public InputStream getBytecode(final String className) throws IOException, ClassNotFoundException { |
| return archive.getBytecode(className); |
| } |
| |
| @Override |
| public Class<?> loadClass(final String className) throws ClassNotFoundException { |
| return archive.loadClass(className); |
| } |
| |
| @Override |
| public Iterator<Entry> iterator() { |
| return archive.iterator(); |
| } |
| |
| public static class ScanXmlSaverFilter implements Filter { |
| private final boolean scanXmlExists; |
| private final ScanUtil.ScanHandler handler; |
| private final List<String> classes; |
| private final Filter otherFilter; |
| |
| public ScanXmlSaverFilter(final boolean scanXmlExists, final ScanUtil.ScanHandler handler, final List<String> classes, final Filter otherFilter) { |
| this.scanXmlExists = scanXmlExists; |
| this.handler = handler; |
| this.classes = classes; |
| this.otherFilter = otherFilter; |
| } |
| |
| @Override |
| public boolean accept(final String name) { |
| final boolean accept = otherFilter == null || otherFilter.accept(name); |
| if (scanXmlExists) { |
| for (final String packageName : handler.getPackages()) { |
| if (name.startsWith(packageName) && accept) { |
| classes.add(name); |
| return true; |
| } |
| } |
| for (final String className : handler.getClasses()) { |
| if (className.equals(name) && accept) { |
| classes.add(name); |
| return true; |
| } |
| } |
| return false; |
| } |
| if (accept) { |
| classes.add(name); |
| } |
| return accept; |
| } |
| } |
| } |