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}