diff options
Diffstat (limited to 'sca-java-1.x/tags/1.6-TUSCANY-3909/contribution-osgi/src/main/java/org/apache/tuscany/sca/contribution/osgi/impl/OSGiImportExportListener.java')
| -rw-r--r-- | sca-java-1.x/tags/1.6-TUSCANY-3909/contribution-osgi/src/main/java/org/apache/tuscany/sca/contribution/osgi/impl/OSGiImportExportListener.java | 215 |
1 files changed, 215 insertions, 0 deletions
diff --git a/sca-java-1.x/tags/1.6-TUSCANY-3909/contribution-osgi/src/main/java/org/apache/tuscany/sca/contribution/osgi/impl/OSGiImportExportListener.java b/sca-java-1.x/tags/1.6-TUSCANY-3909/contribution-osgi/src/main/java/org/apache/tuscany/sca/contribution/osgi/impl/OSGiImportExportListener.java new file mode 100644 index 0000000000..15ad0bd948 --- /dev/null +++ b/sca-java-1.x/tags/1.6-TUSCANY-3909/contribution-osgi/src/main/java/org/apache/tuscany/sca/contribution/osgi/impl/OSGiImportExportListener.java @@ -0,0 +1,215 @@ +/* + * 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.ByteArrayInputStream; +import java.io.ByteArrayOutputStream; +import java.io.InputStream; +import java.net.URL; +import java.util.HashSet; +import java.util.jar.JarOutputStream; +import java.util.jar.Manifest; +import java.util.zip.ZipEntry; + +import org.apache.tuscany.sca.contribution.Contribution; +import org.apache.tuscany.sca.contribution.Export; +import org.apache.tuscany.sca.contribution.Import; +import org.apache.tuscany.sca.contribution.java.JavaExport; +import org.apache.tuscany.sca.contribution.java.JavaImport; +import org.apache.tuscany.sca.contribution.service.ContributionListener; +import org.apache.tuscany.sca.contribution.service.ContributionRepository; +import org.apache.tuscany.sca.osgi.runtime.OSGiRuntime; + +/** + * Namespace Import/Export contribution listener + * The listener would process all import/export from a given contribution + * and initialize the model resolvers properly + * + * @version $Rev$ $Date$ + */ +public class OSGiImportExportListener implements ContributionListener { + + private OSGiBundleProcessor bundleProcessor; + + public OSGiImportExportListener() { + bundleProcessor = new OSGiBundleProcessor(); + } + + /** + * Initialize the import/export model resolvers + * Export model resolvers are same as Contribution model resolver + * Import model resolvers are matched to a specific contribution if a location URI is specified, + * otherwise it try to resolve against all the other contributions + */ + public void contributionAdded(ContributionRepository repository, Contribution contribution) { + + OSGiRuntime osgiRuntime = null; + try { + if (bundleProcessor.installContributionBundle(contribution) == null) { + return; + } else { + osgiRuntime = OSGiRuntime.getRuntime(); + } + } catch (Exception e) { + return; + } + + HashSet<Contribution> bundlesToInstall = new HashSet<Contribution>(); + // Initialize the contribution imports + for (Import import_ : contribution.getImports()) { + boolean initialized = false; + + if (import_ instanceof JavaImport) { + JavaImport javaImport = (JavaImport)import_; + String packageName = javaImport.getPackage(); + + //Find a matching contribution + if (javaImport.getLocation() != null) { + Contribution targetContribution = repository.getContribution(javaImport.getLocation()); + if (targetContribution != null) { + + // Find a matching contribution export + for (Export export : targetContribution.getExports()) { + if (export instanceof JavaExport) { + JavaExport javaExport = (JavaExport)export; + if (packageName.equals(javaExport.getPackage())) { + + if (osgiRuntime.findBundle(targetContribution.getLocation()) == null) + bundlesToInstall.add(targetContribution); + + initialized = true; + + } + } + if (initialized) + break; + } + } + } + } + if (!initialized) { + for (Contribution c : repository.getContributions()) { + + // Go over all exports in the contribution + for (Export export : c.getExports()) { + // If the export matches our namespace, try to the resolve the model object + if (import_.match(export) && osgiRuntime.findBundle(c.getLocation()) == null) { + bundlesToInstall.add(c); + } + } + } + } + } + for (Contribution c : bundlesToInstall) { + try { + installDummyBundle(osgiRuntime, c); + } catch (Exception e) { + } + } + + } + + public void contributionRemoved(ContributionRepository repository, Contribution contribution) { + + } + + public void contributionUpdated(ContributionRepository repository, + Contribution oldContribution, + Contribution contribution) { + + } + + private void installDummyBundle(OSGiRuntime osgiRuntime, Contribution contribution) throws Exception { + ByteArrayOutputStream out = new ByteArrayOutputStream(); + + String EOL = System.getProperty("line.separator"); + + String bundleName = contribution.getURI(); + URL contribURL = new URL(contribution.getLocation()); + String contribName = contribURL.getPath(); + if (contribName.endsWith("/")) + contribName = contribName.substring(0, contribName.length()-1); + if (contribName.lastIndexOf("/") >= 0) + contribName = contribName.substring(contribName.lastIndexOf("/")+1); + + StringBuffer exportPackageNames = new StringBuffer(); + for (Export export : contribution.getExports()) { + if (export instanceof JavaExport) { + if (exportPackageNames.length() > 0) + exportPackageNames.append(","); + exportPackageNames.append(((JavaExport)export).getPackage()); + } + } + StringBuffer importPackageNames = new StringBuffer(); + for (Import import_ : contribution.getImports()) { + if (import_ instanceof JavaImport) { + if (importPackageNames.length() > 0) + importPackageNames.append(","); + importPackageNames.append(((JavaImport)import_).getPackage()); + } + } + + String manifestStr = + "Manifest-Version: 1.0" + EOL + + "Bundle-ManifestVersion: 2" + + EOL + + "Bundle-Name: " + + bundleName + + EOL + + "Bundle-SymbolicName: " + + bundleName + + EOL + + "Bundle-Version: " + + "1.0.0" + + EOL + + "Bundle-Localization: plugin" + + EOL; + + StringBuilder manifestBuf = new StringBuilder(); + manifestBuf.append(manifestStr); + manifestBuf.append("Export-Package: " + exportPackageNames + EOL); + manifestBuf.append("Import-Package: " + importPackageNames + EOL); + manifestBuf.append("Bundle-ClassPath: .," + contribName + EOL); + + ByteArrayInputStream manifestStream = new ByteArrayInputStream(manifestBuf.toString().getBytes()); + Manifest manifest = new Manifest(); + manifest.read(manifestStream); + + JarOutputStream jarOut = new JarOutputStream(out, manifest); + + ZipEntry ze = new ZipEntry(contribName); + jarOut.putNextEntry(ze); + InputStream stream = contribURL.openStream(); + + byte[] bytes = new byte[stream.available()]; + stream.read(bytes); + jarOut.write(bytes); + stream.close(); + + jarOut.close(); + out.close(); + + ByteArrayInputStream in = new ByteArrayInputStream(out.toByteArray()); + + osgiRuntime.installBundle("file://" + bundleName + ".jar", in); + + } + +} |