| /* |
| * 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.samza.config; |
| |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.Map; |
| import java.util.Set; |
| import org.apache.samza.system.SystemStream; |
| |
| |
| /** |
| * A convenience class for fetching configs related to the {@link org.apache.samza.system.chooser.DefaultChooser} |
| */ |
| public class DefaultChooserConfig extends MapConfig { |
| private static final String BATCH_SIZE = "task.consumer.batch.size"; |
| |
| private final TaskConfig taskConfig; |
| private final StreamConfig streamConfig; |
| |
| public DefaultChooserConfig(Config config) { |
| super(config); |
| taskConfig = new TaskConfig(config); |
| streamConfig = new StreamConfig(config); |
| } |
| |
| /** |
| * @return the configured batch size, or 0 if it was not configured. |
| */ |
| public int getChooserBatchSize() { |
| return getInt(BATCH_SIZE, 0); |
| } |
| |
| /** |
| * @return the set of SystemStreams which were configured as bootstrap streams. |
| */ |
| public Set<SystemStream> getBootstrapStreams() { |
| Set<SystemStream> bootstrapInputs = new HashSet<>(); |
| Set<SystemStream> allInputs = taskConfig.getAllInputStreams(); |
| for (SystemStream systemStream : allInputs) { |
| if (streamConfig.getBootstrapEnabled(systemStream)) { |
| bootstrapInputs.add(systemStream); |
| } |
| } |
| return Collections.unmodifiableSet(bootstrapInputs); |
| } |
| |
| /** |
| * Gets the priority of every SystemStream for which the priority |
| * was explicitly configured with a value >=0. |
| * |
| * @return the explicitly-configured stream priorities as a map from |
| * SystemStream to the configured priority value. Streams that |
| * were not explicitly configured with a priority are not returned. |
| */ |
| public Map<SystemStream, Integer> getPriorityStreams() { |
| Set<SystemStream> allInputs = taskConfig.getAllInputStreams(); |
| |
| Map<SystemStream, Integer> priorityStreams = new HashMap<>(); |
| for (SystemStream systemStream : allInputs) { |
| int priority = streamConfig.getPriority(systemStream); |
| if (priority >= 0) { |
| priorityStreams.put(systemStream, priority); |
| } |
| } |
| return Collections.unmodifiableMap(priorityStreams); |
| } |
| } |