001/*
002 * Copyright 2018 the original author or authors.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *       https://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016
017package org.springframework.batch.sample.remotepartitioning;
018
019import java.util.Map;
020
021import org.springframework.batch.core.partition.support.SimplePartitioner;
022import org.springframework.batch.item.ExecutionContext;
023
024/**
025 * Simple partitioner for demonstration purpose.
026 *
027 * @author Mahmoud Ben Hassine
028 */
029public class BasicPartitioner extends SimplePartitioner {
030
031        private static final String PARTITION_KEY = "partition";
032
033        @Override
034        public Map<String, ExecutionContext> partition(int gridSize) {
035                Map<String, ExecutionContext> partitions = super.partition(gridSize);
036                int i = 0;
037                for (ExecutionContext context : partitions.values()) {
038                        context.put(PARTITION_KEY, PARTITION_KEY + (i++));
039                }
040                return partitions;
041        }
042
043}