1 files changed, 105 insertions, 0 deletions
diff --git a/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/build/DefaultSourceChangeHandler.java b/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/build/DefaultSourceChangeHandler.java
new file mode 100644
index 000000000..ea0d695d1
--- /dev/null
+++ b/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/build/DefaultSourceChangeHandler.java
@@ -0,0 +1,105 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Eclipse Public License, Version 1.0 (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.eclipse.org/org/documents/epl-v10.php
+ *
+ * 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 com.android.ide.eclipse.adt.internal.build;
+
+import org.eclipse.core.resources.IContainer;
+import org.eclipse.core.resources.IFile;
+import org.eclipse.core.resources.IResourceDelta;
+
+import java.util.HashSet;
+import java.util.Set;
+
+/**
+ * Base source change handler for the {@link SourceProcessor} classes.
+ *
+ * It can be used as is, as long as the matching {@link SourceProcessor} properly implements
+ * its abstract methods, and the processor does not output resource files,
+ * or can be extended to provide custom implementation for:
+ * {@link #handleSourceFile(IFile, int)}
+ * {@link #handleGeneratedFile(IFile, int)}
+ * {@link #handleResourceFile(IFile, int)}
+ * {@link #filterResourceFolder(IContainer)}
+ *
+ */
+public class DefaultSourceChangeHandler implements SourceChangeHandler {
+
+    private SourceProcessor mProcessor;
+
+    /** List of source files found that are modified or new. */
+    private final Set<IFile> mToCompile = new HashSet<IFile>();
+
+    /** List of source files that have been removed. */
+    private final Set<IFile> mRemoved = new HashSet<IFile>();
+
+    @Override
+    public boolean handleGeneratedFile(IFile file, int kind) {
+        if (kind == IResourceDelta.REMOVED || kind == IResourceDelta.CHANGED) {
+            IFile sourceFile = mProcessor.isOutput(file);
+            if (sourceFile != null) {
+                mToCompile.add(sourceFile);
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    @Override
+    public void handleSourceFile(IFile file, int kind) {
+        // first the file itself if this is a match for the processor's extension
+        if (mProcessor.getExtensions().contains(file.getFileExtension())) {
+            if (kind == IResourceDelta.REMOVED) {
+                mRemoved.add(file);
+            } else {
+                mToCompile.add(file);
+            }
+        }
+
+        // now the dependencies. In all case we compile the files that depend on the
+        // added/changed/removed file.
+        mToCompile.addAll(mProcessor.isDependency(file));
+    }
+
+    protected void addFileToCompile(IFile file) {
+        mToCompile.add(file);
+    }
+
+    Set<IFile> getFilesToCompile() {
+        return mToCompile;
+    }
+
+    protected void addRemovedFile(IFile file) {
+        mRemoved.add(file);
+    }
+
+    Set<IFile> getRemovedFiles() {
+        return mRemoved;
+    }
+
+    public void reset() {
+        mToCompile.clear();
+        mRemoved.clear();
+    }
+
+    protected SourceProcessor getProcessor() {
+        return mProcessor;
+    }
+
+    void init(SourceProcessor processor) {
+        mProcessor = processor;
+    }
+}