metridoc.camel.component.liquibase.LiquibaseProcessor Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of metridoc-camel-core Show documentation
There is a newer version: 0.12
/*
 * Copyright 2010 Trustees of the University of Pennsylvania Licensed under the
 * Educational Community 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.osedu.org/licenses/ECL-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 metridoc.camel.component.liquibase;

import liquibase.integration.spring.SpringLiquibase;
import metridoc.utils.Assert;
import org.apache.camel.Exchange;
import org.apache.camel.Processor;
import org.springframework.core.io.DefaultResourceLoader;

import javax.sql.DataSource;

/**
 *
 * provides a liquibase processor that can be used directly or via a component.  If the passed exchange includes
 *
 * @author Tommy Barker
 */
public class LiquibaseProcessor implements Processor{

    private DataSource dataSource;
    private String liquibaseFile;
    private String contexts;
    private SpringLiquibase springLiquibase;

    /**
     * creates a liquibase processor that will run a liquibase file with a specified dataSource
     * 
     * @param liquibaseFile
     * @param dataSource
     */
    public LiquibaseProcessor(String liquibaseFile, DataSource dataSource) {
        this(liquibaseFile, dataSource, null);
    }

    public LiquibaseProcessor(String liquibaseFile, DataSource dataSource,
            String defaultContexts) {
        Assert.notNull(dataSource, "dataSource must not be null");
        Assert.notEmpty(liquibaseFile, "liquibaseFile must not be null");
        this.liquibaseFile = liquibaseFile;
        this.contexts = defaultContexts;
        this.dataSource = dataSource;
    }

    @Override
    public void process(Exchange exchange) throws Exception {
        getSpringLiquibase().afterPropertiesSet();
    }

    SpringLiquibase getSpringLiquibase() {

        if (springLiquibase == null) {
            springLiquibase = new SpringLiquibase();
            springLiquibase.setChangeLog("classpath:" + liquibaseFile);
            springLiquibase.setContexts(contexts);
            springLiquibase.setDataSource(dataSource);
            springLiquibase.setResourceLoader(new DefaultResourceLoader());
        }

        return springLiquibase;
    }



}