org.xlcloud.openstack.client.OpenStackHeatClient Maven / Gradle / Ivy

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/*
 * Copyright 2012 AMG.lab, a Bull Group Company
 * 
 * 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.xlcloud.openstack.client;

import javax.annotation.PostConstruct;
import javax.inject.Inject;
import javax.ws.rs.core.MediaType;

import org.apache.log4j.Logger;
import org.xlcloud.config.ConfigParam;
import org.xlcloud.openstack.api.HeatClient;
import org.xlcloud.openstack.model.context.HeatContext;
import org.xlcloud.openstack.model.exceptions.OpenStackException;
import org.xlcloud.openstack.model.exceptions.OpenStackNotFoundException;
import org.xlcloud.openstack.model.heat.HeatStack;
import org.xlcloud.openstack.model.heat.StackAction;
import org.xlcloud.openstack.model.heat.StackAction.StackActionType;
import org.xlcloud.openstack.model.heat.StackData;
import org.xlcloud.openstack.model.heat.StackResources;
import org.xlcloud.openstack.rest.OpenStackRestClient;
import org.xlcloud.openstack.rest.RestClientType;

import com.sun.jersey.api.client.Client;
import com.sun.jersey.api.client.UniformInterfaceException;
import com.sun.jersey.api.client.WebResource;

/**
 * This interface provides a concise way to manipulate stacks - supporting
 * create, delete and get details operations. This class is the main
 * implementation of the {@link HeatClient}.
 * 
 * @author Ksiazczyk Grzegorz, AMG.net
 * @author Konrad Król, AMG.net
 */
public class OpenStackHeatClient extends WebResourceRequestBuilderDecorator implements HeatClient {

    private static final Logger LOG = Logger.getLogger(OpenStackHeatClient.class);

    private static final String STACKS = "stacks";

    @Inject
    @OpenStackRestClient(RestClientType.HEAT)
    private Client resourceClient;

    @Inject
    @ConfigParam
    private String heatUrl;

    @Inject
    HeatContext heatContext;

    private WebResource resource;

    @PostConstruct
    public void init() {
        LOG.debug("Using Jersey client " + resourceClient.hashCode());
        resource = resourceClient.resource(heatUrl);
    }

    /** {@inheritDoc} */
    @Override
    public void createStack(HeatStack stack) {
        post(stack, resource.path(heatContext.getOsProjectId()).path(STACKS), MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML);
    }

    /** {@inheritDoc} */
    @Override
    public void updateStack(String stackName, String stackId, HeatStack stack) {
        put(stack, resource.path(heatContext.getOsProjectId()).path(STACKS).path(stackName).path(stackId));
    }

    /** {@inheritDoc} */
    @Override
    public void deleteStack(String stackNameOrId) {
        LOG.info("deleting stack with name or id: " + stackNameOrId);
        delete(resource.path(heatContext.getOsProjectId()).path(STACKS).path(stackNameOrId));
    }

    /** {@inheritDoc} */
    @Override
    public StackData getStackDetails(String stackName) {
        StackData stackData = get(StackData.class, resource.path(heatContext.getOsProjectId()).path(STACKS).path(stackName));
        heatContext.setHeatStackId(stackData.getId());
        heatContext.setHeatStackName(stackData.getStack_name());
        return stackData;
    }

    /** {@inheritDoc} */
    @Override
    public StackResources getStackResources(String stackId) {
        return get(StackResources.class, resource.path(heatContext.getOsProjectId()).path(STACKS).path(stackId).path("resources"));
    }

    /** {@inheritDoc} */
    @Override
    public void validateTemplate(String template) throws UniformInterfaceException, OpenStackException {
        post("{ \"template\": " + template + "}", resource.path("validate"));
    }

    /** {@inheritDoc} */
    @Override
    public void suspendStack(String stackName) {
        sendStackAction(stackName, new StackAction(StackActionType.SUSPEND));
    }

    /** {@inheritDoc} */
    @Override
    public void resumeStack(String stackName) {
        sendStackAction(stackName, new StackAction(StackActionType.RESUME));
    }

    private void sendStackAction(String stackName, StackAction action) {
        StackData stack = getStackDetails(stackName);
        if (stack == null) {
            throw new OpenStackNotFoundException("Stack with name" + stackName + "not found");

        }
        post(action, resource.path(heatContext.getOsProjectId()).path(STACKS).path(stackName).path(stack.getId()).path("actions"));
    }
}