com.github.woonsan.jackrabbit.migration.datastore.batch.BatchConfiguration.java Source code

Introduction

Here is the source code for com.github.woonsan.jackrabbit.migration.datastore.batch.BatchConfiguration.java

Source

/*
 * 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 com.github.woonsan.jackrabbit.migration.datastore.batch;

import javax.jcr.RepositoryException;

import org.apache.jackrabbit.core.data.DataRecord;
import org.springframework.batch.core.Job;
import org.springframework.batch.core.JobExecutionListener;
import org.springframework.batch.core.Step;
import org.springframework.batch.core.configuration.annotation.EnableBatchProcessing;
import org.springframework.batch.core.configuration.annotation.JobBuilderFactory;
import org.springframework.batch.core.configuration.annotation.StepBuilderFactory;
import org.springframework.batch.core.launch.support.RunIdIncrementer;
import org.springframework.batch.core.step.builder.StepBuilderException;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.task.TaskExecutor;
import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;

@Configuration
@EnableBatchProcessing
@ConfigurationProperties(prefix = "batch")
public class BatchConfiguration {

    @Autowired
    private JobBuilderFactory jobBuilderFactory;

    @Autowired
    private StepBuilderFactory stepBuilderFactory;

    @Autowired
    private DataStoreFactory dataStoreFactory;

    @Autowired
    private SourceDataStoreConfiguration sourceDataStoreConfiguration;

    @Autowired
    private TargetDataStoreConfiguration targetDataStoreConfiguration;

    private int minWorkers = 10;

    private int maxWorkers = 10;

    public int getMinWorkers() {
        return minWorkers;
    }

    public void setMinWorkers(int minWorkers) {
        this.minWorkers = minWorkers;
    }

    public int getMaxWorkers() {
        return maxWorkers;
    }

    public void setMaxWorkers(int maxWorkers) {
        this.maxWorkers = maxWorkers;
    }

    @Bean
    public DataRecordReader dataRecordReader() throws RepositoryException {
        return new DataRecordReader(dataStoreFactory.getDataStore(sourceDataStoreConfiguration));
    }

    @Bean
    public DataRecordWriter dataRecordWriter() throws RepositoryException {
        return new DataRecordWriter(dataStoreFactory.getDataStore(targetDataStoreConfiguration));
    }

    @Bean
    public JobExecutionListener jobExecutionListener() {
        return new MigrationJobExecutionListener();
    }

    @Bean
    public TaskExecutor taskExecutor() {
        final ThreadPoolTaskExecutor taskExecutor = new ThreadPoolTaskExecutor();
        taskExecutor.setCorePoolSize(getMinWorkers());
        taskExecutor.setMaxPoolSize(getMaxWorkers());
        taskExecutor.setDaemon(true);
        return taskExecutor;
    }

    @Bean
    public Job migrationJob() {
        return jobBuilderFactory.get("migrationJob").incrementer(new RunIdIncrementer())
                .listener(jobExecutionListener()).flow(step1()).end().build();
    }

    @Bean
    public Step step1() {
        try {
            return stepBuilderFactory.get("step1").<DataRecord, DataRecord>chunk(10).reader(dataRecordReader())
                    .writer(dataRecordWriter()).taskExecutor(taskExecutor()).build();
        } catch (RepositoryException e) {
            throw new StepBuilderException(e);
        }
    }
}