| /* |
| * 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.ignite.stream.zeromq; |
| |
| import java.nio.charset.Charset; |
| import java.util.Map; |
| import java.util.concurrent.atomic.AtomicInteger; |
| import org.apache.ignite.IgniteException; |
| import org.apache.ignite.lang.IgniteBiTuple; |
| import org.apache.ignite.stream.StreamSingleTupleExtractor; |
| |
| /** |
| * Default implementation single tuple extractor for ZeroMQ streamer. |
| */ |
| public class ZeroMqStringSingleTupleExtractor implements StreamSingleTupleExtractor<byte[], Integer, String> { |
| /** Counter. */ |
| private AtomicInteger count = new AtomicInteger(); |
| |
| public ZeroMqStringSingleTupleExtractor() { |
| count.set(0); |
| } |
| |
| @Override public Map.Entry<Integer, String> extract(byte[] msg) { |
| try { |
| return new IgniteBiTuple<>(count.getAndIncrement(), new String(msg, Charset.forName("UTF-8"))); |
| } |
| catch (IgniteException e) { |
| return null; |
| } |
| } |
| } |