| /* |
| * Copyright (c) 2015 DataTorrent, Inc. ALL Rights Reserved. |
| * |
| * 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.datatorrent.lib.converter; |
| |
| import com.datatorrent.api.BaseOperator; |
| import com.datatorrent.api.DefaultInputPort; |
| import com.datatorrent.api.DefaultOutputPort; |
| import java.nio.charset.Charset; |
| |
| /* |
| * This operator converts Byte Array to String. User gets the option of providing character Encoding. |
| */ |
| 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>(); |
| |
| } |