package org.codehaus.mojo.gwt.utils; /* * 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 java.io.File; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.InputStream; import java.net.MalformedURLException; import java.net.URL; import java.net.URLClassLoader; import java.util.ArrayList; import java.util.Arrays; import java.util.Collection; import java.util.HashSet; import java.util.List; import java.util.Set; import org.apache.maven.artifact.Artifact; import org.apache.maven.model.Resource; import org.apache.maven.plugin.logging.Log; import org.apache.maven.project.MavenProject; import org.codehaus.mojo.gwt.AbstractGwtModuleMojo; import org.codehaus.mojo.gwt.ClasspathBuilder; import org.codehaus.mojo.gwt.ClasspathBuilderException; import org.codehaus.mojo.gwt.GwtModule; import org.codehaus.mojo.gwt.GwtModuleReader; import org.codehaus.plexus.util.DirectoryScanner; import org.codehaus.plexus.util.ReaderFactory; import org.codehaus.plexus.util.xml.Xpp3Dom; import org.codehaus.plexus.util.xml.Xpp3DomBuilder; /** * @author <a href="mailto:olamy@apache.org">Olivier Lamy</a> * @since 2.1.0-1 */ public class DefaultGwtModuleReader implements GwtModuleReader { public static final String GWT_MODULE_EXTENSION = ".gwt.xml"; private MavenProject mavenProject; private ClasspathBuilder classpathBuilder; private Log log; public DefaultGwtModuleReader( MavenProject mavenProject, Log log, ClasspathBuilder classpathBuilder ) { this.mavenProject = mavenProject; this.log = log; this.classpathBuilder = classpathBuilder; } @SuppressWarnings("unchecked") public List<String> getGwtModules() { //Use a Set to avoid duplicate when user set src/main/java as <resource> Set<String> mods = new HashSet<String>(); Collection<String> sourcePaths = (Collection<String>) mavenProject.getCompileSourceRoots(); for ( String sourcePath : sourcePaths ) { File sourceDirectory = new File( sourcePath ); if ( sourceDirectory.exists() ) { DirectoryScanner scanner = new DirectoryScanner(); scanner.setBasedir( sourceDirectory.getAbsolutePath() ); scanner.setIncludes( new String[] { "**/*" + GWT_MODULE_EXTENSION } ); scanner.scan(); mods.addAll( Arrays.asList( scanner.getIncludedFiles() ) ); } } Collection<Resource> resources = (Collection<Resource>) mavenProject.getResources(); for ( Resource resource : resources ) { File resourceDirectoryFile = new File( resource.getDirectory() ); if ( !resourceDirectoryFile.exists() ) { continue; } DirectoryScanner scanner = new DirectoryScanner(); scanner.setBasedir( resource.getDirectory() ); scanner.setIncludes( new String[] { "**/*" + GWT_MODULE_EXTENSION } ); scanner.scan(); mods.addAll( Arrays.asList( scanner.getIncludedFiles() ) ); } if ( mods.isEmpty() ) { log.warn( "GWT plugin is configured to detect modules, but none were found." ); } List<String> modules = new ArrayList<String>( mods.size() ); for ( String fileName : mods ) { String path = fileName.substring( 0, fileName.length() - GWT_MODULE_EXTENSION.length() ); modules.add( path.replace( File.separatorChar, '.' ) ); } if ( modules.size() > 0 ) { log.info( "auto discovered modules " + modules ); } return modules; } public GwtModule readModule( String name ) throws GwtModuleReaderException { String modulePath = name.replace( '.', '/' ) + GWT_MODULE_EXTENSION; Collection<String> sourceRoots = mavenProject.getCompileSourceRoots(); for ( String sourceRoot : sourceRoots ) { File root = new File( sourceRoot ); File xml = new File( root, modulePath ); if ( xml.exists() ) { log.debug( "GWT module " + name + " found in " + root ); return readModule( name, xml ); } } Collection<Resource> resources = (Collection<Resource>) mavenProject.getResources(); for ( Resource resource : resources ) { File root = new File( resource.getDirectory() ); File xml = new File( root, modulePath ); if ( xml.exists() ) { log.debug( "GWT module " + name + " found in " + root ); return readModule( name, xml ); } } try { Collection<File> classpath = getClasspath( Artifact.SCOPE_COMPILE ); URL[] urls = new URL[classpath.size()]; int i = 0; for ( File file : classpath ) { urls[i++] = file.toURI().toURL(); } InputStream stream = new URLClassLoader( urls ).getResourceAsStream( modulePath ); if ( stream != null ) { return readModule( name, stream ); } } catch ( MalformedURLException e ) { // ignored; } catch ( ClasspathBuilderException e ) { throw new GwtModuleReaderException( e.getMessage(), e ); } throw new GwtModuleReaderException( "GWT Module " + name + " not found in project sources or resources." ); } private GwtModule readModule( String name, File file ) throws GwtModuleReaderException { try { return readModule( name, new FileInputStream( file ) ); } catch ( FileNotFoundException e ) { throw new GwtModuleReaderException( "Failed to read module file " + file ); } } private GwtModule readModule( String name, InputStream xml ) throws GwtModuleReaderException { try { Xpp3Dom dom = Xpp3DomBuilder.build( ReaderFactory.newXmlReader( xml ) ); return new GwtModule( name, dom, this ); } catch ( Exception e ) { String error = "Failed to read module XML file " + xml; log.error( error ); throw new GwtModuleReaderException( error, e ); } } public Collection<File> getClasspath( String scope ) throws ClasspathBuilderException { Collection<File> files = classpathBuilder.buildClasspathList( mavenProject, scope, mavenProject.getArtifacts(), false ); if ( log.isDebugEnabled() ) { log.debug( "GWT SDK execution classpath :" ); for ( File f : files ) { log.debug( " " + f.getAbsolutePath() ); } } return files; } }