hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/replication/ContainerStreamingOutput.java

/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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
 * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p>
 * 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 org.apache.hadoop.ozone.container.replication;

import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.StreamingOutput;
import java.io.IOException;
import java.io.OutputStream;

/**
 * JAX-RS streaming output to return the binary container data.
 */
public class ContainerStreamingOutput implements StreamingOutput {

  private long containerId;

  private ContainerReplicationSource containerReplicationSource;

  public ContainerStreamingOutput(long containerId,
      ContainerReplicationSource containerReplicationSource) {
    this.containerId = containerId;
    this.containerReplicationSource = containerReplicationSource;
  }

  @Override
  public void write(OutputStream outputStream)
      throws IOException, WebApplicationException {
    containerReplicationSource.copyData(containerId, outputStream);
  }
}