| /* |
| * 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.scrplugin.mojo; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.net.URL; |
| import java.net.URLClassLoader; |
| import java.util.*; |
| |
| import org.apache.felix.scrplugin.*; |
| import org.apache.maven.artifact.Artifact; |
| import org.apache.maven.artifact.versioning.ArtifactVersion; |
| import org.apache.maven.artifact.versioning.DefaultArtifactVersion; |
| import org.apache.maven.model.Resource; |
| import org.apache.maven.plugin.*; |
| import org.apache.maven.project.MavenProject; |
| import org.codehaus.plexus.util.StringUtils; |
| |
| /** |
| * The <code>SCRDescriptorMojo</code> |
| * generates a service descriptor file based on annotations found in the sources. |
| * |
| * @goal scr |
| * @phase process-classes |
| * @threadSafe |
| * @description Build Service Descriptors from Java Source |
| * @requiresDependencyResolution compile |
| */ |
| public class SCRDescriptorMojo extends AbstractMojo { |
| |
| /** |
| * The groupID of the SCR Annotation library |
| * |
| * @see #SCR_ANN_MIN_VERSION |
| * @see #checkAnnotationArtifact(Artifact) |
| */ |
| private static final String SCR_ANN_GROUPID = "org.apache.felix"; |
| |
| /** |
| * The artifactID of the SCR Annotation library. |
| * |
| * @see #SCR_ANN_MIN_VERSION |
| * @see #checkAnnotationArtifact(Artifact) |
| */ |
| private static final String SCR_ANN_ARTIFACTID = "org.apache.felix.scr.annotations"; |
| |
| /** |
| * The minimum SCR Annotation library version supported by this plugin. See |
| * FELIX-2680 for full details. |
| * |
| * @see #checkAnnotationArtifact(Artifact) |
| */ |
| private static final ArtifactVersion SCR_ANN_MIN_VERSION = new DefaultArtifactVersion("1.5.1"); |
| |
| /** |
| * @parameter expression="${project.build.directory}/scr-plugin-generated" |
| * @required |
| * @readonly |
| */ |
| private File outputDirectory; |
| |
| /** |
| * The Maven project. |
| * |
| * @parameter expression="${project}" |
| * @required |
| * @readonly |
| */ |
| private MavenProject project; |
| |
| /** |
| * Name of the generated descriptor. |
| * |
| * @parameter expression="${scr.descriptor.name}" default-value="serviceComponents.xml" |
| */ |
| private String finalName; |
| |
| /** |
| * Name of the generated meta type file. |
| * |
| * @parameter default-value="metatype.xml" |
| */ |
| private String metaTypeName; |
| |
| /** |
| * This flag controls the generation of the bind/unbind methods. |
| * @parameter default-value="true" |
| */ |
| private boolean generateAccessors; |
| |
| /** |
| * This flag controls whether the javadoc source code will be scanned for |
| * tags. |
| * @parameter default-value="true" |
| */ |
| protected boolean parseJavadoc; |
| |
| /** |
| * This flag controls whether the annotations in the sources will be |
| * processed. |
| * @parameter default-value="true" |
| */ |
| protected boolean processAnnotations; |
| |
| /** |
| * In strict mode the plugin even fails on warnings. |
| * @parameter default-value="false" |
| */ |
| protected boolean strictMode; |
| |
| /** |
| * The comma separated list of tokens to exclude when processing sources. |
| * |
| * @parameter alias="excludes" |
| */ |
| private String sourceExcludes; |
| |
| /** |
| * Predefined properties. |
| * |
| * @parameter |
| */ |
| private Map<String, String> properties = new HashMap<String, String>(); |
| |
| /** |
| * Allows to define additional implementations of the interface |
| * {@link org.apache.felix.scrplugin.tags.annotation.AnnotationTagProvider} |
| * that provide mappings from custom annotations to |
| * {@link org.apache.felix.scrplugin.tags.JavaTag} implementations. |
| * List of full qualified class file names. |
| * |
| * @parameter |
| */ |
| private String[] annotationTagProviders = {}; |
| |
| /** |
| * The version of the DS spec this plugin generates a descriptor for. |
| * By default the version is detected by the used tags. |
| * @parameter |
| */ |
| private String specVersion; |
| |
| |
| public void execute() throws MojoExecutionException, MojoFailureException |
| { |
| try |
| { |
| final org.apache.felix.scrplugin.Log scrLog = new MavenLog( getLog() ); |
| |
| final ClassLoader classLoader = new URLClassLoader( getClassPath(), this.getClass().getClassLoader() ); |
| final JavaClassDescriptorManager jManager = new MavenJavaClassDescriptorManager( project, scrLog, |
| classLoader, this.annotationTagProviders, this.sourceExcludes, this.parseJavadoc, |
| this.processAnnotations ); |
| |
| final SCRDescriptorGenerator generator = new SCRDescriptorGenerator( scrLog ); |
| |
| // setup from plugin configuration |
| generator.setOutputDirectory( outputDirectory ); |
| generator.setDescriptorManager( jManager ); |
| generator.setFinalName( finalName ); |
| generator.setMetaTypeName( metaTypeName ); |
| generator.setGenerateAccessors( generateAccessors ); |
| generator.setStrictMode( strictMode ); |
| generator.setProperties( properties ); |
| generator.setSpecVersion( specVersion ); |
| |
| if ( generator.execute() ) |
| { |
| setServiceComponentHeader(); |
| addResources(); |
| } |
| } |
| catch ( SCRDescriptorException sde ) |
| { |
| throw new MojoExecutionException( sde.getMessage(), sde.getCause() ); |
| } |
| catch ( SCRDescriptorFailureException sdfe ) |
| { |
| throw ( MojoFailureException ) new MojoFailureException( sdfe.getMessage() ).initCause( sdfe ); |
| } |
| } |
| |
| private URL[] getClassPath() throws MojoFailureException{ |
| @SuppressWarnings("unchecked") |
| List<Artifact> artifacts = this.project.getCompileArtifacts(); |
| ArrayList<URL> path = new ArrayList<URL>(); |
| |
| try |
| { |
| path.add(new File( this.project.getBuild().getOutputDirectory() ).toURI().toURL()); |
| } |
| catch ( IOException ioe ) |
| { |
| throw new MojoFailureException( "Unable to add target directory to classloader."); |
| } |
| |
| for (Iterator<Artifact> ai=artifacts.iterator(); ai.hasNext(); ) { |
| Artifact a = ai.next(); |
| assertMinScrAnnotationArtifactVersion(a); |
| try { |
| path.add(a.getFile().toURI().toURL()); |
| } catch (IOException ioe) { |
| throw new MojoFailureException("Unable to get compile class loader."); |
| } |
| } |
| |
| return path.toArray( new URL[path.size()] ); |
| } |
| |
| /** |
| * Asserts that the artifact is at least version |
| * {@link #SCR_ANN_MIN_VERSION} if it is |
| * org.apache.felix:org.apache.felix.scr.annotations. If the version is |
| * lower then the build fails because as of Maven SCR Plugin 1.6.0 the old |
| * SCR Annotation libraries do not produce descriptors any more. If the |
| * artifact is not this method silently returns. |
| * |
| * @param a The artifact to check and assert |
| * @see #SCR_ANN_ARTIFACTID |
| * @see #SCR_ANN_GROUPID |
| * @see #SCR_ANN_MIN_VERSION |
| * @throws MojoFailureException If the artifact refers to the SCR Annotation |
| * library with a version less than {@link #SCR_ANN_MIN_VERSION} |
| */ |
| private void assertMinScrAnnotationArtifactVersion(Artifact a) throws MojoFailureException |
| { |
| if (SCR_ANN_ARTIFACTID.equals(a.getArtifactId()) && SCR_ANN_GROUPID.equals(a.getGroupId())) |
| { |
| // assert minimal version number |
| ArtifactVersion aVersion = new DefaultArtifactVersion(a.getBaseVersion()); |
| if (SCR_ANN_MIN_VERSION.compareTo(aVersion) > 0) |
| { |
| getLog().error("Project depends on " + a); |
| getLog().error("Minimum required version is " + SCR_ANN_MIN_VERSION); |
| throw new MojoFailureException("Please use org.apache.felix:org.apache.felix.scr.annotations version " |
| + SCR_ANN_MIN_VERSION + " or newer."); |
| } |
| } |
| } |
| |
| private void setServiceComponentHeader() |
| { |
| final File descriptorFile = StringUtils.isEmpty( this.finalName ) ? null : new File( new File( |
| this.outputDirectory, "OSGI-INF" ), this.finalName ); |
| if ( descriptorFile.exists() ) |
| { |
| String svcComp = project.getProperties().getProperty( "Service-Component" ); |
| final String svcPath = "OSGI-INF/" + finalName; |
| svcComp = ( svcComp == null ) ? svcPath : |
| svcComp.contains(svcPath) ? svcComp : svcComp + ", " + svcPath; |
| project.getProperties().setProperty( "Service-Component", svcComp ); |
| } |
| } |
| |
| |
| private void addResources() |
| { |
| // now add the descriptor directory to the maven resources |
| final String ourRsrcPath = this.outputDirectory.getAbsolutePath(); |
| boolean found = false; |
| @SuppressWarnings("unchecked") |
| final Iterator<Resource> rsrcIterator = this.project.getResources().iterator(); |
| while ( !found && rsrcIterator.hasNext() ) |
| { |
| final Resource rsrc = rsrcIterator.next(); |
| found = rsrc.getDirectory().equals( ourRsrcPath ); |
| } |
| if ( !found ) |
| { |
| final Resource resource = new Resource(); |
| resource.setDirectory( this.outputDirectory.getAbsolutePath() ); |
| this.project.addResource( resource ); |
| } |
| } |
| } |