/*
* 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.addthis.hydra.task.output;
import java.io.IOException;
import java.io.OutputStream;
import java.util.HashSet;
import com.addthis.basis.util.LessBytes;
import com.addthis.bundle.core.Bundle;
import com.addthis.bundle.io.DataChannelCodec;
import com.addthis.bundle.io.DataChannelCodec.ClassIndexMap;
import com.addthis.bundle.io.DataChannelCodec.FieldIndexMap;
import com.addthis.codec.annotations.FieldConfig;
/**
* @user-reference
*/
public class OutputStreamChannel extends OutputStreamFormatter {
@FieldConfig(codable = true)
private HashSet<String> include;
@FieldConfig(codable = true)
private HashSet<String> exclude;
@Override
public void open() { }
@Override
public OutputStreamEmitter createEmitter() {
return new OutputStreamEmitter() {
private final ClassIndexMap classMap = DataChannelCodec.createClassIndexMap();
private final FieldIndexMap fieldMap = DataChannelCodec.createFieldIndexMap();
@Override
public void write(OutputStream out, Bundle row) throws IOException {
if (include != null || exclude != null) {
row = new FilteredBundle(row, include, exclude);
}
synchronized (this) {
LessBytes.writeBytes(DataChannelCodec.encodeBundle(row, fieldMap, classMap), out);
}
}
@Override
public void flush(OutputStream out) throws IOException {
out.flush();
}
};
}
}