com.google.gdt.eclipse.appengine.rpc.wizards.CreateRPCServiceLayerWizard.java Source code

Introduction

Here is the source code for com.google.gdt.eclipse.appengine.rpc.wizards.CreateRPCServiceLayerWizard.java

Source

/*******************************************************************************
 * Copyright 2011 Google Inc. All Rights Reserved.
 *
 * 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
 *
 * 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 com.google.gdt.eclipse.appengine.rpc.wizards;

import com.google.gdt.eclipse.appengine.rpc.AppEngineRPCPlugin;
import com.google.gdt.eclipse.appengine.rpc.wizards.helpers.RpcServiceLayerCreator;
import com.google.gdt.eclipse.core.AdapterUtilities;
import com.google.gdt.eclipse.core.update.internal.core.UpdateQueryBuilder;

import org.eclipse.core.resources.IProject;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.jdt.core.IJavaElement;
import org.eclipse.jdt.core.JavaModelException;
import org.eclipse.jdt.internal.ui.wizards.NewElementWizard;
import org.eclipse.jdt.ui.JavaUI;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.ui.INewWizard;
import org.eclipse.ui.IWorkbench;
import org.eclipse.ui.PartInitException;

/**
 * TODO: doc me.
 */
@SuppressWarnings("restriction")
public class CreateRPCServiceLayerWizard extends NewElementWizard implements INewWizard {

    private ConfigureRPCServiceLayerWizardPage configureRPCPage;

    private IProject project;

    private RpcServiceLayerCreator serviceCreator;

    public CreateRPCServiceLayerWizard() {
    }

    @Override
    public void addPages() {
        configureRPCPage = new ConfigureRPCServiceLayerWizardPage(project);
        addPage(configureRPCPage);
    }

    @Override
    public boolean canFinish() {
        return configureRPCPage.isPageComplete();
    }

    /*
     * (non-Javadoc)
     * 
     * @see
     * org.eclipse.jdt.internal.ui.wizards.NewElementWizard#getCreatedElement()
     */
    @Override
    public IJavaElement getCreatedElement() {
        return null;
    }

    @Override
    public void init(IWorkbench workbench, IStructuredSelection selection) {
        project = getSelectedProject(selection.getFirstElement());
    }

    @Override
    public boolean performFinish() {

        serviceCreator = RpcServiceLayerCreator.createNewRpcServiceLayerCreator();
        serviceCreator.setEntities(configureRPCPage.getEntityTypes());
        serviceCreator.setGaeProjectSrc(configureRPCPage.getContainerRoot());
        serviceCreator.setServiceName(configureRPCPage.getServiceName());

        if (serviceCreator.serviceExists()) {
            boolean answer = MessageDialog.openQuestion(configureRPCPage.getShell(), "RPC Service exists",
                    configureRPCPage.getServiceName()
                            + " already exists. Would you like to overwrite the existing service?");
            if (!answer) {
                return false;
            }
        }

        UpdateQueryBuilder.incrementRPCLayerCount(project, false);

        boolean result = super.performFinish();
        if (result) {
            try {
                JavaUI.openInEditor(serviceCreator.getElement());
            } catch (PartInitException e) {
                AppEngineRPCPlugin.log(e);
            } catch (JavaModelException e) {
                AppEngineRPCPlugin.log(e);
            }
        }
        return result;
    }

    /*
     * (non-Javadoc)
     * 
     * @see
     * org.eclipse.jdt.internal.ui.wizards.NewElementWizard#finishPage(org.eclipse
     * .core.runtime.IProgressMonitor)
     */
    @Override
    protected void finishPage(IProgressMonitor monitor) throws InterruptedException, CoreException {
        serviceCreator.create(monitor);
    }

    private IProject getSelectedProject(Object selection) {
        if (selection == null) {
            return null;
        }
        IProject proj = AdapterUtilities.getAdapter(selection, IProject.class);
        if (proj != null) {
            return proj;
        }
        IJavaElement javaElement = AdapterUtilities.getAdapter(selection, IJavaElement.class);

        if (javaElement != null) {
            return javaElement.getJavaProject().getProject();
        }
        return null;
    }
}