DeployApplicationCommand.java

/************************************************************************
 ** 
 ** Copyright (C) 2011 Dave Thomas, PeopleMerge.
 ** All rights reserved.
 ** Contact: opensource@peoplemerge.com.
 **
 ** This file is part of the NGDS language.
 **
 ** 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.
 **  
 ** Other Uses
 ** Alternatively, this file may be used in accordance with the terms and
 ** conditions contained in a signed written agreement between you and the 
 ** copyright owner.
 ************************************************************************/
package org.deploymentobjects.core.application;

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

import org.deploymentobjects.core.domain.model.environment.Environment;
import org.deploymentobjects.core.domain.model.environment.EnvironmentRepository;
import org.deploymentobjects.core.domain.model.execution.CreatesJob;
import org.deploymentobjects.core.domain.model.execution.Dispatchable;
import org.deploymentobjects.core.domain.model.execution.DispatchableStep;
import org.deploymentobjects.core.domain.model.execution.Executable;
import org.deploymentobjects.core.domain.model.execution.ExitCode;
import org.deploymentobjects.core.domain.model.execution.Job;
import org.deploymentobjects.core.domain.model.execution.Script;
import org.deploymentobjects.core.domain.model.execution.SequentialSteps;
import org.deploymentobjects.core.domain.shared.EventPublisher;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;


public class DeployApplicationCommand implements CreatesJob {

	
	private Dispatchable dispatch;
	private String appName;
	private EnvironmentRepository environmentRepository;
	private Environment environment;
	
	//private List<DispatchableStep> steps = new LinkedList<DispatchableStep>();


	private Logger logger = LoggerFactory
			.getLogger(DeployApplicationCommand.class);
	public EventPublisher publisher;
	public String environmentName;
	private SequentialSteps steps;
	public SequentialSteps getSteps(){
		return steps;
	}

	public DeployApplicationCommand() {
	}

	public static class Builder {
		private static class Tuple {
			public final String commands;
			public final String role;

			public Tuple(String x, String y) {
				this.commands = x;
				this.role = y;
			}
		}

		List<Tuple> commandsToNodes = new LinkedList<Tuple>();

		private DeployApplicationCommand command = new DeployApplicationCommand();

		public Builder(EventPublisher publisher, String appName, String environmentName, EnvironmentRepository repo, Dispatchable dispatch) {
			command.appName = appName;
			command.environmentName = environmentName;
			command.environmentRepository = repo;
			command.publisher = publisher;
			command.dispatch = dispatch;
			command.steps = new SequentialSteps(publisher);
		}

		public DeployApplicationCommand build() {
			command.environment = command.environmentRepository
					.lookupByName(command.environmentName);
			for (Tuple tuple : commandsToNodes) {
				Script cmd = new Script(tuple.commands);
				DispatchableStep step =  DispatchableStep.factory(command.publisher, cmd, command.environment
						.lookupRoleByName(tuple.role), command.dispatch);
				command.steps.add(step);
			}
			return command;
		}


		public Builder addCommandOnNodesByRole(String commands, String role) {
			commandsToNodes.add(new Tuple(commands, role));
			return this;
		}

		public Builder withDispatch(Dispatchable dispatch) {
			command.dispatch = dispatch;
			return this;
		}
		
		public Builder withData(/**/){
			//command.data = not new NoData();
			return this;
		}

	}


	@Override
	public Job create() {
		
		Job job = new Job(publisher, steps, "DeployApplication-"+appName+"-to-"+environmentName);
		return job;
	}

}