UndeployActivitiCommand.java

/*
 * Copyright 2012 Cisco Systems
 *
 * 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 org.apache.provisionr.activiti.karaf.commands;

import java.util.List;
import org.activiti.engine.ProcessEngine;
import org.activiti.engine.RepositoryService;
import org.activiti.engine.repository.Deployment;
import org.apache.felix.gogo.commands.Argument;
import org.apache.felix.gogo.commands.Command;
import org.apache.felix.gogo.commands.Option;

/**
 * @author Srinivasan Chikkala
 */
@Command(scope = "activiti", name = "undeploy", description = "Undeploys the Activiti Deployments " +
    "(Process definition, images, bar files etc")
public class UndeployActivitiCommand extends ActivitiCommand {

    @Argument(index = 0, name = "deploymentIDs", description = "Deployment IDs of the Activiti deployments " +
        "for undeploying", required = false, multiValued = true)
    private String[] deploymentIDs;

    @Option(name = "-a", aliases = "--all", description = "Undeploys all Activiti deployments ")
    private boolean undeployAll;

    @Option(name = "-c", aliases = "--cascade", description = "Deletes the given deployment and cascade deletion to " +
        "process instances, history process instances and jobs.")
    private boolean cascade;


    @Override
    protected Object doExecute() throws Exception {
        ProcessEngine engine = this.getProcessEngine();
        if (engine == null) {
            out().println("Process Engine NOT Found!");
            return null;
        }

        RepositoryService repo = engine.getRepositoryService();

        if (this.deploymentIDs != null && this.deploymentIDs.length > 0) {
            for (String deploymentID : this.deploymentIDs) {
                repo.deleteDeployment(deploymentID, this.cascade);
                out().printf("Undeployed %s \n", deploymentID);
            }
            return null;
        }

        if (!undeployAll) {
            out().println("Activiti Deployment IDs required or use the command with -a or --all " +
                "option for all undeployments");
            return null;
        } else {
            out().println("Undeploying all Activiti deployments...");
            List<Deployment> depList = repo.createDeploymentQuery().orderByDeploymenTime().asc().list();
            for (Deployment dep : depList) {
                String deploymentID = dep.getId();
                repo.deleteDeployment(deploymentID, this.cascade);
                out().printf("Undeployed %s \n", deploymentID);
            }
        }

        return null;
    }

}