| package org.apache.maven.plugin.coreit; |
| |
| /* |
| * 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. |
| */ |
| |
| import org.apache.maven.artifact.manager.WagonManager; |
| import org.apache.maven.plugin.AbstractMojo; |
| import org.apache.maven.plugin.MojoExecutionException; |
| import org.apache.maven.plugin.MojoFailureException; |
| import org.apache.maven.wagon.repository.Repository; |
| |
| import java.io.File; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import java.io.OutputStream; |
| import java.net.URL; |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.Properties; |
| |
| /** |
| * Loads resources from a class loader used to load a wagon provider. The wagon is merely used to access the extension |
| * class loader it came from which is otherwise not accessible to a plugin. |
| * |
| * @author Benjamin Bentmann |
| * |
| * @goal load-resource |
| * @phase validate |
| */ |
| public class LoadResourceMojo |
| extends AbstractMojo |
| { |
| |
| /** |
| * The Wagon manager used to retrieve wagon providers. |
| * |
| * @component |
| */ |
| private WagonManager wagonManager; |
| |
| /** |
| * The path to the properties file used to track the results of the resource loading via the wagon's class loader. |
| * |
| * @parameter property="wagon.wagonClassLoaderOutput" |
| */ |
| private File wagonClassLoaderOutput; |
| |
| /** |
| * The role hint for the wagon provider to load. The class loader of this provider will be used to load the |
| * resources. |
| * |
| * @parameter property="wagon.wagonProtocol" |
| */ |
| private String wagonProtocol; |
| |
| /** |
| * The repository to load the wagon for, if applicable. |
| * |
| * @parameter property="wagon.repositoryId" |
| */ |
| private String repositoryId; |
| |
| /** |
| * The set of resources to load. For each specified absolute resource path <code>ARP</code> that was successfully |
| * loaded, the generated properties files will contain a key named <code>ARP</code> whose value gives the URL to the |
| * resource. In addition, the keys <code>ARP.count</code>, <code>ARP.0</code>, <code>ARP.1</code> etc. will |
| * enumerate all URLs matching the resource name. |
| * |
| * @parameter |
| */ |
| private String[] resourcePaths; |
| |
| /** |
| * Runs this mojo. |
| * |
| * @throws MojoFailureException If the attached file has not been set. |
| */ |
| public void execute() |
| throws MojoExecutionException, MojoFailureException |
| { |
| getLog().info( "[MAVEN-CORE-IT-LOG] Looking up wagon for protocol " + wagonProtocol ); |
| |
| Object wagon; |
| try |
| { |
| if ( repositoryId != null ) |
| { |
| wagon = wagonManager.getWagon( new Repository( repositoryId, wagonProtocol + "://host/path" ) ); |
| } |
| else |
| { |
| wagon = wagonManager.getWagon( wagonProtocol ); |
| } |
| } |
| catch ( Exception e ) |
| { |
| throw new MojoExecutionException( "Failed to load wagon for protocol " + wagonProtocol, e ); |
| } |
| |
| ClassLoader classLoader = wagon.getClass().getClassLoader(); |
| |
| getLog().info( "[MAVEN-CORE-IT-LOG] Using class loader " + classLoader ); |
| |
| Properties loaderProperties = new Properties(); |
| loaderProperties.setProperty( "wagon.class", wagon.getClass().getName() ); |
| |
| if ( resourcePaths != null ) |
| { |
| for ( String path : resourcePaths ) |
| { |
| getLog().info( "[MAVEN-CORE-IT-LOG] Loading resource " + path ); |
| |
| URL url = classLoader.getResource( path ); |
| getLog().info( "[MAVEN-CORE-IT-LOG] Loaded resource from " + url ); |
| if ( url != null ) |
| { |
| loaderProperties.setProperty( path, url.toString() ); |
| } |
| |
| try |
| { |
| List urls = Collections.list( classLoader.getResources( path ) ); |
| loaderProperties.setProperty( path + ".count", "" + urls.size() ); |
| for ( int j = 0; j < urls.size(); j++ ) |
| { |
| loaderProperties.setProperty( path + "." + j, urls.get( j ).toString() ); |
| } |
| } |
| catch ( IOException e ) |
| { |
| throw new MojoExecutionException( "Resources could not be enumerated: " + path, e ); |
| } |
| } |
| } |
| |
| getLog().info( "[MAVEN-CORE-IT-LOG] Creating output file " + wagonClassLoaderOutput ); |
| |
| OutputStream out = null; |
| try |
| { |
| wagonClassLoaderOutput.getParentFile().mkdirs(); |
| out = new FileOutputStream( wagonClassLoaderOutput ); |
| loaderProperties.store( out, "MAVEN-CORE-IT-LOG" ); |
| } |
| catch ( IOException e ) |
| { |
| throw new MojoExecutionException( "Output file could not be created: " + wagonClassLoaderOutput, e ); |
| } |
| finally |
| { |
| if ( out != null ) |
| { |
| try |
| { |
| out.close(); |
| } |
| catch ( IOException e ) |
| { |
| // just ignore |
| } |
| } |
| } |
| |
| getLog().info( "[MAVEN-CORE-IT-LOG] Created output file " + wagonClassLoaderOutput ); |
| } |
| |
| } |