| /* |
| * Copyright (C) 2010 The Android Open Source Project |
| * |
| * Licensed 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. |
| */ |
| |
| package com.android.quicksearchbox.util; |
| |
| |
| import java.util.HashMap; |
| |
| /** |
| * Uses a separate executor for each task name. |
| */ |
| public class PerNameExecutor implements NamedTaskExecutor { |
| |
| private final Factory<NamedTaskExecutor> mExecutorFactory; |
| private HashMap<String, NamedTaskExecutor> mExecutors; |
| |
| /** |
| * @param executorFactory Used to run the commands. |
| */ |
| public PerNameExecutor(Factory<NamedTaskExecutor> executorFactory) { |
| mExecutorFactory = executorFactory; |
| } |
| |
| public synchronized void cancelPendingTasks() { |
| if (mExecutors == null) return; |
| for (NamedTaskExecutor executor : mExecutors.values()) { |
| executor.cancelPendingTasks(); |
| } |
| } |
| |
| public synchronized void close() { |
| if (mExecutors == null) return; |
| for (NamedTaskExecutor executor : mExecutors.values()) { |
| executor.close(); |
| } |
| } |
| |
| public synchronized void execute(NamedTask task) { |
| if (mExecutors == null) { |
| mExecutors = new HashMap<String, NamedTaskExecutor>(); |
| } |
| String name = task.getName(); |
| NamedTaskExecutor executor = mExecutors.get(name); |
| if (executor == null) { |
| executor = mExecutorFactory.create(); |
| mExecutors.put(name, executor); |
| } |
| executor.execute(task); |
| } |
| |
| } |