org.cloudfoundry.ide.eclipse.internal.server.ui.actions.ModifyServicesForApplicationAction.java Source code

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Here is the source code for org.cloudfoundry.ide.eclipse.internal.server.ui.actions.ModifyServicesForApplicationAction.java

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/*******************************************************************************
 * Copyright (c) 2012 VMware, Inc.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     VMware, Inc. - initial API and implementation
 *******************************************************************************/
package org.cloudfoundry.ide.eclipse.internal.server.ui.actions;

import java.util.ArrayList;
import java.util.List;

import org.cloudfoundry.client.lib.CloudApplication;
import org.cloudfoundry.client.lib.CloudService;
import org.cloudfoundry.client.lib.DeploymentInfo;
import org.cloudfoundry.ide.eclipse.internal.server.core.ApplicationModule;
import org.cloudfoundry.ide.eclipse.internal.server.core.CloudFoundryServerBehaviour;
import org.cloudfoundry.ide.eclipse.internal.server.core.CloudUtil;
import org.cloudfoundry.ide.eclipse.internal.server.ui.editor.CloudFoundryApplicationsEditorPage;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.jface.viewers.IStructuredSelection;

/**
 * Action for modifying list of services for an application. Subclasses are
 * responsible for defining the list of services to add or to remove.
 * @author Terry Denney
 * @author Steffen Pingel
 * @author Christian Dupuis
 */
public abstract class ModifyServicesForApplicationAction extends CloudFoundryEditorAction {

    private final ApplicationModule appModule;

    private final CloudFoundryServerBehaviour serverBehaviour;

    public ModifyServicesForApplicationAction(ApplicationModule appModule,
            CloudFoundryServerBehaviour serverBehaviour, CloudFoundryApplicationsEditorPage editorPage) {
        super(editorPage, RefreshArea.DETAIL);

        this.appModule = appModule;
        this.serverBehaviour = serverBehaviour;
    }

    abstract public List<String> getServicesToAdd();

    abstract public List<String> getServicesToRemove();

    @Override
    public IStatus performAction(IProgressMonitor monitor) throws CoreException {
        CloudApplication cloudApplication = appModule.getApplication();
        List<String> existingServices = new ArrayList<String>();
        List<String> updatedServices = new ArrayList<String>();

        DeploymentInfo deploymentInfo = appModule.getLastDeploymentInfo();
        if (deploymentInfo == null) {
            deploymentInfo = new DeploymentInfo();
            appModule.setLastDeploymentInfo(deploymentInfo);
            if (cloudApplication != null) {
                existingServices = cloudApplication.getServices();
            }
        } else {
            existingServices = deploymentInfo.getServices();
        }

        if (existingServices != null) {
            updatedServices.addAll(existingServices);
        }

        // This leads to duplicate services, as a user could drop an existing
        // service already
        // added to an application
        boolean serviceChanges = false;
        List<String> servicesToAdd = getServicesToAdd();
        for (String serviceToAdd : servicesToAdd) {
            if (!updatedServices.contains(serviceToAdd)) {
                updatedServices.add(serviceToAdd);
                serviceChanges = true;
            }
        }

        serviceChanges |= updatedServices.removeAll(getServicesToRemove());

        if (serviceChanges) {
            // update services right away, if app is already deployed
            if (appModule.getApplication() != null) {
                serverBehaviour.updateServices(appModule.getApplicationId(), updatedServices, monitor);
            }

            // DeploymentInfo deploymentInfo =
            // appModule.getLastDeploymentInfo();
            // if (deploymentInfo == null) {
            // deploymentInfo = new DeploymentInfo();
            // appModule.setLastDeploymentInfo(deploymentInfo);
            // }
            deploymentInfo.setServices(updatedServices);
        }

        return Status.OK_STATUS;
    }

    @Override
    protected void display404Error(IStatus status) {
        // FIXME: do we ever want to show 404?
    }

    @Override
    protected boolean shouldLogException(CoreException e) {
        return !CloudUtil.isNotFoundException(e);
    }

    protected List<String> getServiceNames(IStructuredSelection selection) {
        Object[] objects = selection.toArray();
        List<String> services = new ArrayList<String>();

        for (Object object : objects) {
            if (object instanceof CloudService) {
                services.add(((CloudService) object).getName());
            }
        }
        return services;
    }

}