io.spring.batch.integration.TweetToJobTransformer.java Source code

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Here is the source code for io.spring.batch.integration.TweetToJobTransformer.java

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/*
 * Copyright 2014 the original author or authors.
 *
 * Licensed 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 io.spring.batch.integration;

import org.springframework.batch.core.Job;
import org.springframework.batch.core.JobParametersBuilder;
import org.springframework.batch.integration.launch.JobLaunchRequest;
import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.integration.annotation.Transformer;
import org.springframework.social.twitter.api.Tweet;
import org.springframework.stereotype.Component;

/**
 * @author mminella
 */
@Component
public class TweetToJobTransformer implements ApplicationContextAware {

    private ApplicationContext context;

    @Transformer(inputChannel = "jobTweets", outputChannel = "jobChannel")
    public JobLaunchRequest transform(Tweet tweet) {

        System.out.println("Creating request");

        String[] tweetParams = tweet.getText().split(" ");
        Job job = (Job) context.getBean(tweetParams[0]);

        System.out.println("Job = " + job.getName());

        JobParametersBuilder paramsBuilder = new JobParametersBuilder();

        for (int i = 1; i < tweetParams.length; i++) {
            String[] param = tweetParams[1].split("=");
            paramsBuilder.addString(param[0], param[1]);
        }

        System.out.println("Parameters = " + paramsBuilder.toString());

        JobLaunchRequest request = new JobLaunchRequest(job, paramsBuilder.toJobParameters());

        return request;
    }

    @Override
    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
        this.context = applicationContext;
    }
}