com.eucalyptus.cloudformation.config.CloudFormationServiceBuilder.java Source code

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Here is the source code for com.eucalyptus.cloudformation.config.CloudFormationServiceBuilder.java

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/*************************************************************************
 * Copyright 2009-2014 Eucalyptus Systems, Inc.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; version 3 of the License.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see http://www.gnu.org/licenses/.
 *
 * Please contact Eucalyptus Systems, Inc., 6755 Hollister Ave., Goleta
 * CA 93117, USA or visit http://www.eucalyptus.com/licenses/ if you need
 * additional information or have any questions.
 ************************************************************************/
package com.eucalyptus.cloudformation.config;

import org.apache.log4j.Logger;
import com.eucalyptus.bootstrap.Handles;
import com.eucalyptus.cloudformation.CloudFormation;
import com.eucalyptus.cloudformation.workflow.WorkflowClientManager;
import com.eucalyptus.component.AbstractServiceBuilder;
import com.eucalyptus.component.ComponentId;
import com.eucalyptus.component.ComponentIds;
import com.eucalyptus.component.ServiceConfiguration;
import com.eucalyptus.component.ServiceConfigurations;
import com.eucalyptus.component.ServiceRegistrationException;
import com.eucalyptus.component.annotation.ComponentPart;
import com.google.common.base.Predicates;
import com.google.common.collect.Iterables;

/**
 *
 */
@ComponentPart(CloudFormation.class)
@Handles({ DeregisterCloudFormationType.class, DescribeCloudFormationType.class,
        ModifyCloudFormationAttributeType.class, RegisterCloudFormationType.class, })
public class CloudFormationServiceBuilder extends AbstractServiceBuilder<CloudFormationConfiguration> {

    private static final Logger logger = Logger.getLogger(CloudFormationServiceBuilder.class);

    @Override
    public CloudFormationConfiguration newInstance() {
        return new CloudFormationConfiguration();
    }

    @Override
    public CloudFormationConfiguration newInstance(String partition, String name, String host, Integer port) {
        return new CloudFormationConfiguration(partition, name, host, port);
    }

    @Override
    public ComponentId getComponentId() {
        return ComponentIds.lookup(CloudFormation.class);
    }

    @Override
    public void fireStart(ServiceConfiguration config) {
    }

    @Override
    public void fireStop(ServiceConfiguration config) {
    }

    @Override
    public void fireEnable(final ServiceConfiguration config) throws ServiceRegistrationException {
        if (config.isVmLocal() && noOtherEnabled(config))
            try {
                WorkflowClientManager.start();
            } catch (Exception e) {
                throw new ServiceRegistrationException("Error creating workflow client", e);
            }
    }

    @Override
    public void fireDisable(final ServiceConfiguration config) {
        if (config.isVmLocal() && noOtherEnabled(config))
            try {
                WorkflowClientManager.stop();
            } catch (Exception e) {
                logger.error("Error stopping workflow client", e);
            }
    }

    @Override
    public void fireCheck(ServiceConfiguration config) {
    }

    @SuppressWarnings("unchecked")
    private boolean noOtherEnabled(final ServiceConfiguration config) {
        return Iterables.isEmpty(ServiceConfigurations.filter(CloudFormation.class,
                Predicates.and(ServiceConfigurations.filterHostLocal(), ServiceConfigurations.filterEnabled(),
                        Predicates.not(Predicates.equalTo(config)))));
    }
}