com.android.ide.common.res2.MergeWriter Maven / Gradle / Ivy
/*
* 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.ide.common.res2;
import com.android.annotations.NonNull;
import com.android.ide.common.internal.WaitableExecutor;
import java.io.File;
import javax.xml.parsers.DocumentBuilderFactory;
/**
* A {@link MergeConsumer} that writes the result on the disk.
*/
public abstract class MergeWriter implements MergeConsumer {
@NonNull
private final File mRootFolder;
@NonNull
private final WaitableExecutor mExecutor;
public MergeWriter(@NonNull File rootFolder) {
mRootFolder = rootFolder;
mExecutor = new WaitableExecutor();
}
@Override
public void start(@NonNull DocumentBuilderFactory factory) throws ConsumerException {
}
@Override
public void end() throws ConsumerException {
try {
postWriteAction();
getExecutor().waitForTasksWithQuickFail(true);
} catch (ConsumerException e) {
throw e;
} catch (Exception e) {
throw new ConsumerException(e);
}
}
/**
* Called after all the items have been added/removed. This is called by {@link #end()}.
* @throws ConsumerException
*/
protected void postWriteAction() throws ConsumerException {
}
@NonNull
protected WaitableExecutor getExecutor() {
return mExecutor;
}
@NonNull
protected File getRootFolder() {
return mRootFolder;
}
}