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/*
* Copyright (C) 2013 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.gallery3d.filtershow.pipeline;
import android.content.Context;
import android.os.Handler;
import android.os.HandlerThread;
import android.os.Message;
import android.util.Log;
import java.util.HashMap;
public class ProcessingTaskController implements Handler.Callback {
private static final String LOGTAG = "ProcessingTaskController";
private Context mContext;
private HandlerThread mHandlerThread = null;
private Handler mProcessingHandler = null;
private int mCurrentType;
private HashMap<Integer, ProcessingTask> mTasks = new HashMap<Integer, ProcessingTask>();
public final static int RESULT = 1;
public final static int UPDATE = 2;
private final Handler mResultHandler = new Handler() {
@Override
public void handleMessage(Message msg) {
ProcessingTask task = mTasks.get(msg.what);
if (task != null) {
if (msg.arg1 == RESULT) {
task.onResult((ProcessingTask.Result) msg.obj);
} else if (msg.arg1 == UPDATE) {
task.onUpdate((ProcessingTask.Update) msg.obj);
} else {
Log.w(LOGTAG, "received unknown message! " + msg.arg1);
}
}
}
};
@Override
public boolean handleMessage(Message msg) {
ProcessingTask task = mTasks.get(msg.what);
if (task != null) {
task.processRequest((ProcessingTask.Request) msg.obj);
return true;
}
return false;
}
public ProcessingTaskController(Context context) {
mContext = context;
mHandlerThread = new HandlerThread("ProcessingTaskController",
android.os.Process.THREAD_PRIORITY_FOREGROUND);
mHandlerThread.start();
mProcessingHandler = new Handler(mHandlerThread.getLooper(), this);
}
public Handler getProcessingHandler() {
return mProcessingHandler;
}
public Handler getResultHandler() {
return mResultHandler;
}
public int getReservedType() {
return mCurrentType++;
}
public Context getContext() {
return mContext;
}
public void add(ProcessingTask task) {
task.added(this);
mTasks.put(task.getType(), task);
}
public void quit() {
mHandlerThread.quit();
}
}
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