1 /* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Eclipse Public License, Version 1.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.eclipse.org/org/documents/epl-v10.php 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.ide.eclipse.adt.internal.build; 18 19 import org.eclipse.core.resources.IContainer; 20 import org.eclipse.core.resources.IFile; 21 import org.eclipse.core.resources.IResourceDelta; 22 23 import java.util.HashSet; 24 import java.util.Set; 25 26 /** 27 * Base source change handler for the {@link SourceProcessor} classes. 28 * 29 * It can be used as is, as long as the matching {@link SourceProcessor} properly implements 30 * its abstract methods, and the processor does not output resource files, 31 * or can be extended to provide custom implementation for: 32 * {@link #handleSourceFile(IFile, int)} 33 * {@link #handleGeneratedFile(IFile, int)} 34 * {@link #handleResourceFile(IFile, int)} 35 * {@link #filterResourceFolder(IContainer)} 36 * 37 */ 38 public class DefaultSourceChangeHandler implements SourceChangeHandler { 39 40 private SourceProcessor mProcessor; 41 42 /** List of source files found that are modified or new. */ 43 private final Set<IFile> mToCompile = new HashSet<IFile>(); 44 45 /** List of source files that have been removed. */ 46 private final Set<IFile> mRemoved = new HashSet<IFile>(); 47 48 @Override handleGeneratedFile(IFile file, int kind)49 public boolean handleGeneratedFile(IFile file, int kind) { 50 if (kind == IResourceDelta.REMOVED || kind == IResourceDelta.CHANGED) { 51 IFile sourceFile = mProcessor.isOutput(file); 52 if (sourceFile != null) { 53 mToCompile.add(sourceFile); 54 return true; 55 } 56 } 57 58 return false; 59 } 60 61 @Override handleSourceFile(IFile file, int kind)62 public void handleSourceFile(IFile file, int kind) { 63 // first the file itself if this is a match for the processor's extension 64 if (mProcessor.getExtensions().contains(file.getFileExtension())) { 65 if (kind == IResourceDelta.REMOVED) { 66 mRemoved.add(file); 67 } else { 68 mToCompile.add(file); 69 } 70 } 71 72 // now the dependencies. In all case we compile the files that depend on the 73 // added/changed/removed file. 74 mToCompile.addAll(mProcessor.isDependency(file)); 75 } 76 addFileToCompile(IFile file)77 protected void addFileToCompile(IFile file) { 78 mToCompile.add(file); 79 } 80 getFilesToCompile()81 Set<IFile> getFilesToCompile() { 82 return mToCompile; 83 } 84 addRemovedFile(IFile file)85 protected void addRemovedFile(IFile file) { 86 mRemoved.add(file); 87 } 88 getRemovedFiles()89 Set<IFile> getRemovedFiles() { 90 return mRemoved; 91 } 92 reset()93 public void reset() { 94 mToCompile.clear(); 95 mRemoved.clear(); 96 } 97 getProcessor()98 protected SourceProcessor getProcessor() { 99 return mProcessor; 100 } 101 init(SourceProcessor processor)102 void init(SourceProcessor processor) { 103 mProcessor = processor; 104 } 105 } 106