| /** |
| * 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 |
| * |
| * 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 org.apache.apex.malhar.lib.converter; |
| |
| import java.nio.charset.Charset; |
| |
| import com.datatorrent.api.DefaultInputPort; |
| import com.datatorrent.api.DefaultOutputPort; |
| import com.datatorrent.common.util.BaseOperator; |
| |
| /** |
| * This operator converts Byte Array to String. User gets the option of providing character Encoding. |
| * |
| * @category Tuple Converters |
| * @tags byte, string |
| * |
| * @since 2.1.0 |
| */ |
| public class ByteArrayToStringConverterOperator extends BaseOperator |
| { |
| private Charset characterEncoding; |
| |
| public String getCharacterEncoding() |
| { |
| return characterEncoding.name(); |
| } |
| |
| public void setCharacterEncoding(String characterEncoding) |
| { |
| this.characterEncoding = Charset.forName(characterEncoding); |
| } |
| |
| |
| |
| /** |
| * Input port which accepts byte array. |
| */ |
| public final transient DefaultInputPort<byte[]> input = new DefaultInputPort<byte[]>() |
| { |
| @Override |
| public void process(byte[] message) |
| { |
| output.emit(characterEncoding == null ? new String(message) : new String(message, characterEncoding)); |
| } |
| |
| }; |
| |
| /** |
| * Output port which outputs String converted from byte array. |
| */ |
| public final transient DefaultOutputPort<String> output = new DefaultOutputPort<String>(); |
| |
| } |