io.spring.TaskProcessor.java Source code

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Here is the source code for io.spring.TaskProcessor.java

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/*
 * Copyright 2016 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;

import java.util.HashMap;
import java.util.Map;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.cloud.stream.annotation.EnableBinding;
import org.springframework.cloud.stream.messaging.Processor;
import org.springframework.cloud.task.launcher.TaskLaunchRequest;
import org.springframework.integration.annotation.Transformer;
import org.springframework.messaging.support.GenericMessage;
import org.springframework.util.StringUtils;

/**
 * A processor that takes the maven repository coordinates and datasource configuration
 * for a task and sends a {@link TaskLaunchRequest} message to a task sink.
 *
 * @author Glenn Renfro
 */
@EnableBinding(Processor.class)
@EnableConfigurationProperties(TaskProcessorProperties.class)
public class TaskProcessor {

    @Autowired
    private TaskProcessorProperties processorProperties;

    @Transformer(inputChannel = Processor.INPUT, outputChannel = Processor.OUTPUT)
    public Object setupRequest(String message) {
        Map<String, String> properties = new HashMap<String, String>();
        if (StringUtils.hasText(processorProperties.getDataSourceUrl())) {
            properties.put("spring_datasource_url", processorProperties.getDataSourceUrl());
        }
        if (StringUtils.hasText(processorProperties.getDataSourceDriverClassName())) {
            properties.put("spring_datasource_driverClassName", processorProperties.getDataSourceDriverClassName());
        }
        if (StringUtils.hasText(processorProperties.getDataSourceUserName())) {
            properties.put("spring_datasource_username", processorProperties.getDataSourceUserName());
        }
        if (StringUtils.hasText(processorProperties.getDataSourcePassword())) {
            properties.put("spring_datasource_password", processorProperties.getDataSourcePassword());
        }
        properties.put("payload", message);

        TaskLaunchRequest request = new TaskLaunchRequest(processorProperties.getUri(), null, properties, null,
                processorProperties.getApplicationName());

        return new GenericMessage<TaskLaunchRequest>(request);
    }

}