Version 1.5.6

dart/editor/tools/plugins/com.google.dart.engine/src/com/google/dart/engine/internal/index/file/SeparateFileManager.java

+/*
+ * Copyright (c) 2014, the Dart project authors.
+ * 
+ * Licensed under the Eclipse Public License v1.0 (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/legal/epl-v10.html
+ * 
+ * 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.google.dart.engine.internal.index.file;
+
+import java.io.BufferedInputStream;
+import java.io.BufferedOutputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.InputStream;
+import java.io.OutputStream;
+
+/**
+ * An implementation of {@link FileManager} that keeps each file in a separate file system file.
+ */
+public class SeparateFileManager implements FileManager {
+  private final File base;
+
+  public SeparateFileManager(File base) {
+    this.base = base;
+    clear();
+  }
+
+  @Override
+  public void clear() {
+    File[] files = base.listFiles();
+    if (files != null) {
+      for (File file : files) {
+        file.delete();
+      }
+    }
+  }
+
+  @Override
+  public void delete(String name) {
+    getFile(name).delete();
+  }
+
+  @Override
+  public InputStream openInputStream(String name) throws Exception {
+    File file = getFile(name);
+    if (!file.isFile()) {
+      return null;
+    }
+    InputStream stream = new FileInputStream(file);
+    return new BufferedInputStream(stream);
+  }
+
+  @Override
+  public OutputStream openOutputStream(String name) throws Exception {
+    File file = getFile(name);
+    OutputStream stream = new FileOutputStream(file);
+    return new BufferedOutputStream(stream);
+  }
+
+  private File getFile(String name) {
+    return new File(base, name);
+  }
+}