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A set of Command Line Tools to interact with Zimory/T-Systems cloud REST server

There is a newer version: 0.3

package com.terradue.dsi;

/*
 *  Copyright 2012 Terradue srl
 *
 *  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.
 */

import static java.lang.System.exit;

import java.util.LinkedList;
import java.util.List;

import com.beust.jcommander.Parameter;
import com.beust.jcommander.Parameters;
import com.google.inject.Inject;
import com.google.inject.name.Named;
import com.sun.jersey.api.client.UniformInterfaceException;

@Parameters( commandDescription = "Terminate the selected running instance" )
public final class StopInstances
    extends BaseTool
{

    public static void main( String[] args )
    {
        exit( new StopInstances().execute( args ) );
    }

    @Parameter( description = "The image identificator(s) as returned by the upload command" )
    protected List ids = new LinkedList();

    @Inject
    @Override
    public void setServiceUrl( @Named( "service.deployments" ) String serviceUrl )
    {
        super.setServiceUrl( serviceUrl );
    }

    @Override
    public void execute()
        throws Exception
    {
        for ( String id : ids )
        {
            stopInstance( id );
        }
    }

    boolean stopInstance( String id )
    {
        logger.info( "Stopping instance {} ...", id );
        try
        {
            restClient.resource( new StringBuilder( serviceUrl )
                                .append( '/' )
                                .append( id )
                                .append( "/start" )
                                .toString() )
                      .post();
            logger.info( "Instance {} successfully stopped", id );
            return true;
        }
        catch ( UniformInterfaceException e )
        {
            logger.warn( "An error occurred while stopping instance {}, server replied: {}",
                         id, e.getResponse().getClientResponseStatus() );
            return false;
        }
    }

}