| /* |
| * 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.felix.dm.annotation.plugin.mvn; |
| |
| import java.io.BufferedInputStream; |
| import java.io.BufferedOutputStream; |
| import java.io.File; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.util.Map; |
| import java.util.Set; |
| |
| import org.apache.felix.dm.annotation.plugin.bnd.DescriptorGenerator; |
| import org.apache.maven.model.Build; |
| import org.apache.maven.plugin.AbstractMojo; |
| import org.apache.maven.plugin.MojoExecutionException; |
| import org.apache.maven.project.MavenProject; |
| |
| import aQute.lib.osgi.Analyzer; |
| import aQute.lib.osgi.Jar; |
| import aQute.lib.osgi.Resource; |
| |
| /** |
| * The <code>AnnotationMojo</code> |
| * generates a Dependency Manager component descriptor file based on annotations found from java classes. |
| * |
| * @goal scan |
| * @phase package |
| * @description Build DependencyManager component descriptors from class annotations. |
| * @requiresDependencyResolution compile |
| * @author <a href="mailto:dev@felix.apache.org">Felix Project Team</a> |
| */ |
| public class AnnotationMojo extends AbstractMojo |
| { |
| /** |
| * The Maven project. |
| * |
| * @parameter expression="${project}" |
| * @required |
| * @readonly |
| */ |
| private MavenProject m_project; |
| |
| /** |
| * The target extension |
| * |
| * @parameter default-value="jar" |
| * @required |
| */ |
| private String m_artifactExtension; |
| |
| /** |
| * If set, configures the log level. |
| * |
| * @parameter alias="log" |
| */ |
| private String m_log; |
| |
| /** |
| * If set, configures if we must auto generate Import-Service/Export-Service headers. |
| * |
| * @parameter alias="build-import-export-service" default-value="true" |
| */ |
| private boolean m_buildImportExportService; |
| |
| /** |
| * The maven project bas directory, used when generating metadata in maven project directory. |
| * |
| * @parameter expression="${project.basedir}" |
| * @required |
| * @readonly |
| */ |
| private File m_projectBaseDir; |
| |
| /** |
| * If set, configures the output directory where generated descriptor files are generated. |
| * |
| * @parameter alias="generated-output-dir" |
| */ |
| private String m_generatedOutputDir; |
| |
| /** |
| * "Import-Service" osgi header |
| */ |
| private static final String IMPORT_SERVICE = "Import-Service"; |
| |
| /** |
| * "Export-Service" osgi header |
| */ |
| private static final String EXPORT_SERVICE = "Export-Service"; |
| |
| /** |
| * Executes this mojo. We'll use the bnd library in order to scan classes |
| * from our target bundle. |
| */ |
| public void execute() throws MojoExecutionException |
| { |
| Analyzer analyzer = null; |
| Jar jar = null; |
| |
| try |
| { |
| // Get the name of our target bundle we are parsing for annotations. |
| File target = getBundleName(); |
| getLog().info("Generating DM component descriptors for bundle " + target); |
| |
| // Create a bnd analyzer and analyze our target bundle classes. |
| analyzer = new Analyzer(); |
| analyzer.setJar(target); |
| analyzer.analyze(); |
| |
| // This helper class will parse classes using the analyzer we just created. |
| DescriptorGenerator generator = new DescriptorGenerator(analyzer, new MvnLogger(getLog(), m_log)); |
| |
| // Start scanning |
| if (generator.execute()) |
| { |
| // Some annotations have been parsed. |
| // Add the list of generated component descriptors in our |
| // special header. |
| jar = analyzer.getJar(); |
| jar.getManifest().getMainAttributes() |
| .putValue( "DependencyManager-Component", generator.getDescriptorPaths() ); |
| |
| // Add generated descriptors into the target bundle (we'll use a |
| // temp file). |
| Map<String, Resource> resources = generator.getDescriptors(); |
| for (Map.Entry<String, Resource> entry : resources.entrySet()) |
| { |
| addResource(entry.getKey(), entry.getValue().openInputStream()); |
| jar.putResource(entry.getKey(), entry.getValue()); |
| } |
| |
| Resource metaType = generator.getMetaTypeResource(); |
| if (metaType != null) |
| { |
| addResource("OSGI-INF/metatype/metatype.xml", metaType.openInputStream()); |
| jar.putResource("OSGI-INF/metatype/metatype.xml", metaType); |
| } |
| |
| // Possibly set the Import-Service/Export-Service header |
| if (m_buildImportExportService) |
| { |
| // Don't override Import-Service header, if it is found from |
| // the bnd directives. |
| if (jar.getManifest().getMainAttributes().getValue(IMPORT_SERVICE) == null) |
| { |
| buildImportExportService(jar, IMPORT_SERVICE, generator.getImportService()); |
| } |
| |
| // Don't override Export-Service header, if already defined |
| if (jar.getManifest().getMainAttributes().getValue(EXPORT_SERVICE) == null) |
| { |
| buildImportExportService(jar, EXPORT_SERVICE, generator.getExportService()); |
| } |
| } |
| |
| copy(jar, target); |
| } |
| } |
| |
| catch (MojoExecutionException e) |
| { |
| throw e; |
| } |
| |
| catch (Throwable t) |
| { |
| getLog().error("Exception while scanning annotation", t); |
| throw new MojoExecutionException(t.getMessage(), t.getCause()); |
| } |
| |
| finally |
| { |
| if (jar != null) |
| { |
| jar.close(); |
| } |
| } |
| } |
| |
| /** |
| * Adds a resource file into the project base directory |
| * @param key |
| * @param in |
| * @throws IOException |
| */ |
| private void addResource(String key, InputStream in) throws IOException |
| { |
| if (m_generatedOutputDir != null) { |
| File descriptorFile = new File( m_projectBaseDir + File.separator + m_generatedOutputDir, key ); |
| descriptorFile.getParentFile().mkdirs(); |
| BufferedInputStream bin = new BufferedInputStream( in ); |
| BufferedOutputStream out = new BufferedOutputStream( new FileOutputStream( descriptorFile ) ); |
| int b; |
| while ( ( b = bin.read() ) != -1 ) |
| { |
| out.write( b ); |
| } |
| out.close(); |
| bin.close(); |
| } |
| } |
| |
| private void buildImportExportService(Jar jar, String header, Set<String> services) throws IOException |
| { |
| getLog().info("building " + header + " header with the following services: " + services); |
| |
| if (services.size() > 0) |
| { |
| StringBuilder sb = new StringBuilder(); |
| for (String service : services) |
| { |
| sb.append(service); |
| sb.append(","); |
| } |
| sb.setLength(sb.length() - 1); // skip last comma |
| jar.getManifest().getMainAttributes().putValue(header, sb.toString()); |
| } |
| } |
| |
| /** |
| * Returns the target name of this maven project. |
| * |
| * @return the target name of this maven project. |
| */ |
| private File getBundleName() |
| { |
| Build build = m_project.getBuild(); |
| return new File(build.getDirectory() + File.separator + build.getFinalName() + "." |
| + m_artifactExtension); |
| } |
| |
| /** |
| * Copy the generated jar into our target bundle. |
| * |
| * @param jar the jar with the generated component descriptors |
| * @param target our target bundle |
| * @throws MojoExecutionException on any errors |
| * @throws Exception on any error |
| */ |
| private void copy(Jar jar, File target) throws MojoExecutionException, Exception |
| { |
| File tmp = new File(getBundleName() + ".tmp"); |
| try |
| { |
| if (tmp.exists()) |
| { |
| if (!tmp.delete()) |
| { |
| throw new MojoExecutionException("Could not remove " + tmp); |
| } |
| } |
| jar.write(tmp); |
| jar.close(); |
| |
| if (target.exists() && !target.delete()) |
| { |
| throw new MojoExecutionException("Could not remove " + target); |
| } |
| if (!tmp.renameTo(target)) |
| { |
| throw new MojoExecutionException("Could not rename " + tmp + " to " + target); |
| } |
| } |
| finally |
| { |
| jar.close(); |
| if (tmp.exists() && !tmp.delete()) |
| { |
| throw new MojoExecutionException("Could not remove " + tmp); |
| } |
| } |
| } |
| } |