/**
 * Licensed to Cloudera, Inc. under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  Cloudera, Inc. 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
 *
 *     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.cloudera.flume.handlers.text.output;

import java.io.IOException;
import java.io.OutputStream;

import com.cloudera.flume.core.Event;
import com.cloudera.flume.handlers.text.FormatFactory.OutputFormatBuilder;
import com.google.common.base.Preconditions;

/**
 * This output format does a toString and appends a new line to the event. If no
 * output format is specified in some output sinks, this is the default
 * formatter used.
 */
public class DebugOutputFormat extends AbstractOutputFormat {

  private static final String NAME = "debug";

  @Override
  public void format(OutputStream o, Event e) throws IOException {
    o.write((e.toString() + "\n").getBytes());
  }

  public static OutputFormatBuilder builder() {
    return new OutputFormatBuilder() {

      @Override
      public OutputFormat build(String... args) {
        Preconditions.checkArgument(args.length == 0, "usage: debug");

        OutputFormat format = new DebugOutputFormat();
        format.setBuilder(this);

        return format;
      }

      @Override
      public String getName() {
        return NAME;
      }

    };
  }

}