diff options
Diffstat (limited to 'sca-java-2.x/tags/2.0.1-RC1/modules/contribution-osgi/src/main/java/org/apache/tuscany/sca/contribution/osgi/impl/OSGiBundleContributionScanner.java')
| -rw-r--r-- | sca-java-2.x/tags/2.0.1-RC1/modules/contribution-osgi/src/main/java/org/apache/tuscany/sca/contribution/osgi/impl/OSGiBundleContributionScanner.java | 222 |
1 files changed, 222 insertions, 0 deletions
diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/contribution-osgi/src/main/java/org/apache/tuscany/sca/contribution/osgi/impl/OSGiBundleContributionScanner.java b/sca-java-2.x/tags/2.0.1-RC1/modules/contribution-osgi/src/main/java/org/apache/tuscany/sca/contribution/osgi/impl/OSGiBundleContributionScanner.java new file mode 100644 index 0000000000..111f1f370c --- /dev/null +++ b/sca-java-2.x/tags/2.0.1-RC1/modules/contribution-osgi/src/main/java/org/apache/tuscany/sca/contribution/osgi/impl/OSGiBundleContributionScanner.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.tuscany.sca.contribution.osgi.impl; + +import java.io.IOException; +import java.io.InputStream; +import java.net.URL; +import java.util.ArrayList; +import java.util.Collections; +import java.util.Enumeration; +import java.util.HashSet; +import java.util.List; +import java.util.Set; +import java.util.jar.JarEntry; +import java.util.jar.JarInputStream; + +import org.apache.tuscany.sca.contribution.Artifact; +import org.apache.tuscany.sca.contribution.Contribution; +import org.apache.tuscany.sca.contribution.ContributionFactory; +import org.apache.tuscany.sca.contribution.PackageType; +import org.apache.tuscany.sca.contribution.processor.ContributionException; +import org.apache.tuscany.sca.contribution.processor.ContributionReadException; +import org.apache.tuscany.sca.contribution.scanner.ContributionScanner; +import org.osgi.framework.Bundle; +import org.osgi.framework.Constants; + +/** + * Bundle Contribution package processor. + * + * @version $Rev$ $Date$ + */ +public class OSGiBundleContributionScanner implements ContributionScanner { + private ContributionFactory contributionFactory; + + public OSGiBundleContributionScanner(ContributionFactory contributionFactory) { + this.contributionFactory = contributionFactory; + } + + public String getContributionType() { + return PackageType.BUNDLE; + } + + public List<Artifact> scan(Contribution contribution) throws ContributionReadException { + Bundle bundle = OSGiBundleActivator.findBundle(contribution.getLocation()); + + if (bundle == null) { + throw new IllegalArgumentException("Could not find OSGi bundle " + contribution.getLocation()); + } + + List<Artifact> artifacts = new ArrayList<Artifact>(); + Set<String> bundleClassPath = new HashSet<String>(); + String cp = (String)bundle.getHeaders().get(Constants.BUNDLE_CLASSPATH); + if (cp != null) { + String[] paths = cp.split(","); + for (String path : paths) { + bundleClassPath.add(path.trim()); + } + } + + try { + // Test if the bundle is an Eclipse project + boolean devMode = (bundle.getEntry("/.project") != null); + // FIXME: The entries can come from fragments. Do we need to have a way to differentiate the entries? + Enumeration<?> entries = bundle.findEntries("/", "*", true); + while (entries.hasMoreElements()) { + URL entry = (URL)entries.nextElement(); + String entryName = entry.getPath(); + if (devMode && entryName.contains("/.svn/") + || entryName.startsWith("/.") + || entryName.startsWith("/target/") + || entryName.startsWith("/src/")) { + // Ignore .svn files + // Ignore .classpath, .project, src, and target + continue; + } + if (entryName.startsWith("/")) { + entryName = entryName.substring(1); + } + + //Add artifact to list + Artifact artifact = contributionFactory.createArtifact(); + artifact.setURI(entryName); + artifact.setLocation(entry.toString()); + + artifacts.add(artifact); + + //if Artifact is a JAR, add jar artifacts as well + /* + if (entryName.endsWith(".jar") && bundleClassPath.contains(entryName)) { + List<String> jarArtifactURIs = getJarArtifacts(entry, entry.openStream()); + for( String uri : jarArtifactURIs) { + Artifact jarArtifact = contributionFactory.createArtifact(); + jarArtifact.setURI(uri); + URL url = bundle.getResource(uri); + String location = null; + if(url!=null) { + location = url.toString(); + } + jarArtifact.setLocation(location); + artifacts.add(jarArtifact); + + } + } + */ + + } + } catch (Exception e) { + throw new RuntimeException(e); + } + contribution.getExtensions().add(bundle); + contribution.getTypes().add(getContributionType()); + contribution.setClassLoader(new BundleClassLoader(bundle)); + return artifacts; + } + + /** + * Retrieve a list of Artifact URIs for a given JAR + * @param packageSourceURL + * @param inputStream + * @return + * @throws ContributionException + * @throws IOException + */ + private List<String> getJarArtifacts(URL packageSourceURL, InputStream inputStream) throws ContributionException, IOException { + if (packageSourceURL == null) { + throw new IllegalArgumentException("Invalid null package source URL."); + } + + if (inputStream == null) { + throw new IllegalArgumentException("Invalid null source inputstream."); + } + + // Assume the root is a jar file + JarInputStream jar = new JarInputStream(inputStream); + try { + Set<String> names = new HashSet<String>(); + while (true) { + JarEntry entry = jar.getNextJarEntry(); + if (entry == null) { + // EOF + break; + } + + // FIXME: Maybe we should externalize the filter as a property + String name = entry.getName(); + if (!name.startsWith(".") && !entry.isDirectory()) { + + // Trim trailing / + if (name.endsWith("/")) { + name = name.substring(0, name.length() - 1); + } + + // Add the entry name + if (!names.contains(name) && name.length() > 0) { + names.add(name); + + } + } + } + + // Return list of URIs + List<String> artifacts = new ArrayList<String>(); + for (String name : names) { + artifacts.add(name); + } + return artifacts; + + } finally { + jar.close(); + } + } + + + + private static class BundleClassLoader extends ClassLoader { + private Bundle bundle; + public BundleClassLoader(Bundle bundle) { + super(null); + this.bundle = bundle; + } + + @Override + protected Class<?> findClass(String name) throws ClassNotFoundException { + return bundle.loadClass(name); + } + + @Override + protected URL findResource(String name) { + return bundle.getResource(name); + } + + @SuppressWarnings("unchecked") + @Override + protected Enumeration<URL> findResources(String name) throws IOException { + Enumeration<URL> urls = bundle.getResources(name); + if (urls == null) { + List<URL> list = Collections.emptyList(); + return Collections.enumeration(list); + } else { + return urls; + } + } + } + +} |