| /** |
| * 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.storm.streams; |
| |
| import java.util.Collections; |
| import java.util.HashSet; |
| import java.util.Set; |
| import org.apache.storm.streams.processors.BatchProcessor; |
| import org.apache.storm.streams.processors.Processor; |
| import org.apache.storm.streams.processors.ProcessorContext; |
| import org.apache.storm.tuple.Fields; |
| |
| /** |
| * Node that wraps a processor in the stream. |
| */ |
| public class ProcessorNode extends Node { |
| private final Processor<?> processor; |
| private final boolean isBatch; |
| private final boolean preservesKey; |
| // Windowed parent streams |
| private Set<String> windowedParentStreams = Collections.emptySet(); |
| |
| public ProcessorNode(Processor<?> processor, String outputStream, Fields outputFields, boolean preservesKey) { |
| super(outputStream, outputFields); |
| this.isBatch = processor instanceof BatchProcessor; |
| this.processor = processor; |
| this.preservesKey = preservesKey; |
| } |
| |
| public ProcessorNode(Processor<?> processor, String outputStream, Fields outputFields) { |
| this(processor, outputStream, outputFields, false); |
| } |
| |
| public Processor<?> getProcessor() { |
| return processor; |
| } |
| |
| public boolean isBatch() { |
| return isBatch; |
| } |
| |
| public Set<String> getWindowedParentStreams() { |
| return Collections.unmodifiableSet(windowedParentStreams); |
| } |
| |
| void setWindowedParentStreams(Set<String> windowedParentStreams) { |
| this.windowedParentStreams = new HashSet<>(windowedParentStreams); |
| } |
| |
| void initProcessorContext(ProcessorContext context) { |
| processor.init(context); |
| } |
| |
| public boolean isPreservesKey() { |
| return preservesKey; |
| } |
| |
| @Override |
| public String toString() { |
| return "ProcessorNode{" |
| + "processor=" + processor |
| + ", isBatch=" + isBatch |
| + ", preservesKey=" + preservesKey |
| + ", windowedParentStreams=" + windowedParentStreams |
| + "} " |
| + super.toString(); |
| } |
| } |