com.github.jrrdev.mantisbtsync.core.jobs.projects.tasklets.ProjectsExtractorTasklet.java Source code

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Here is the source code for com.github.jrrdev.mantisbtsync.core.jobs.projects.tasklets.ProjectsExtractorTasklet.java

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/**
 * The MIT License (MIT)
 *
 * Copyright (c) 2016 Jrard Devarulrajah
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
package com.github.jrrdev.mantisbtsync.core.jobs.projects.tasklets;

import java.math.BigInteger;
import java.util.Set;

import org.springframework.batch.core.StepContribution;
import org.springframework.batch.core.scope.context.ChunkContext;
import org.springframework.batch.core.step.tasklet.Tasklet;
import org.springframework.batch.repeat.RepeatStatus;

/**
 * Tasklet that gets the list of projects to sync from the job execution
 * context (mantis.loop.projects_to_process) and pop the first element and
 * stores it in the step execution context (mantis.loop.project_id).
 *
 * That tasklet is used to sync sub-projects related to the main project
 * passed as job parameter.
 *
 * @author jrrdev
 *
 */
public class ProjectsExtractorTasklet implements Tasklet {

    /**
     * {@inheritDoc}
     * @see org.springframework.batch.core.step.tasklet.Tasklet#execute(org.springframework.batch.core.StepContribution, org.springframework.batch.core.scope.context.ChunkContext)
     */
    @Override
    public RepeatStatus execute(final StepContribution contribution, final ChunkContext chunkContext)
            throws Exception {

        final Set<BigInteger> projectsId = (Set<BigInteger>) chunkContext.getStepContext().getJobExecutionContext()
                .get("mantis.loop.projects_to_process");

        if (projectsId != null && !projectsId.isEmpty()) {
            final BigInteger id = projectsId.iterator().next();
            projectsId.remove(id);
            chunkContext.getStepContext().getStepExecution().getExecutionContext().put("mantis.loop.project_id",
                    id);
        } else {
            chunkContext.getStepContext().getStepExecution().getExecutionContext().remove("mantis.loop.project_id");
        }

        return RepeatStatus.FINISHED;
    }

}