com.celum.dbtool.installer.GroovyExecutor Maven / Gradle / Ivy

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/*****************************************************************************
 * Copyright 2013 celum Slovakia s r.o.
 *
 * 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 com.celum.dbtool.installer;

import com.celum.dbtool.step.DbStep;
import com.celum.dbtool.step.StepType;
import groovy.lang.GroovyShell;
import groovy.lang.Script;

import javax.sql.DataSource;
import java.io.Reader;
import java.sql.Connection;
import java.util.Map;
import java.util.logging.Logger;

/**
 * This executor is attached to StepType.GROOVY and executes the
 * groovy scripts
 */
public class GroovyExecutor extends Executor
{
    /** logger */
    private static Logger LOG = Logger.getLogger(GroovyExecutor.class.getName());

    /** groovy shell executes the groovy scripts */
    private final GroovyShell shell;

    /** determines entry point in groovy scripts */
    public final static String GROOVY_DBMAIN = "dbmain";

    /** holds all variables with values */
    private final Map variables;

    /** database connection */
    private final DataSource dataSource;


    /**
     * Constructor
     */
    public GroovyExecutor(DataSource dataSource, Map variables)
    {
        super(StepType.GROOVY);
        this.shell = new GroovyShell();
        this.dataSource = dataSource;
        this.variables = variables;
    }


    /**
     * executes the Groovy script
     */
    @Override
    public void execute(DbStep step)
    {
        LOG.info("[GROOVY STEP]:" + step.getName() + " (" + step.getVersion() + ")");
        Reader scriptReader = step.getStepReader();
        Script s = shell.parse(scriptReader);
        s.invokeMethod(GROOVY_DBMAIN, new Object[] {dataSource, variables} );
    }
}