ContentWriter.java

/*
 * Copyright © 2015 Cask Data, Inc.
 *
 * 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 co.cask.cdap.data.stream.service.upload;

import org.apache.twill.common.Cancellable;

import java.io.Closeable;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.util.Iterator;

/**
 * Represents a writer that writes stream event content to a stream.
 */
public interface ContentWriter extends Closeable, Cancellable {

  void append(ByteBuffer body, boolean immutable) throws IOException;

  void appendAll(Iterator<ByteBuffer> bodies, boolean immutable) throws IOException;
}