AwsClasspathContainerPage.java

/*
 * Copyright 2010-2012 Amazon.com, Inc. or its affiliates. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License").
 * You may not use this file except in compliance with the License.
 * A copy of the License is located at
 *
 *  http://aws.amazon.com/apache2.0
 *
 * or in the "license" file accompanying this file. This file 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.amazonaws.eclipse.sdk.ui.classpath;

import java.io.IOException;

import org.eclipse.jdt.core.IClasspathEntry;
import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.jdt.core.JavaCore;
import org.eclipse.jdt.ui.wizards.IClasspathContainerPage;
import org.eclipse.jdt.ui.wizards.IClasspathContainerPageExtension;
import org.eclipse.jface.resource.ImageRegistry;
import org.eclipse.jface.wizard.WizardPage;
import org.eclipse.swt.widgets.Composite;

import com.amazonaws.eclipse.core.AwsToolkitCore;
import com.amazonaws.eclipse.sdk.ui.JavaSdkInstall;
import com.amazonaws.eclipse.sdk.ui.SdkProjectMetadata;
import com.amazonaws.eclipse.sdk.ui.SdkVersionInfoComposite;

/**
 * A Wizard page to modify the version of the AWS SDK for Java being used by
 * a particular project.
 */
public class AwsClasspathContainerPage extends WizardPage
        implements IClasspathContainerPage, IClasspathContainerPageExtension {

    private IJavaProject project;
    private SdkVersionInfoComposite sdkVersionInfoComposite;

    public AwsClasspathContainerPage() {
        super("AWS SDK for Java");

        setDescription("Add the AWS SDK for Java to your project's classpath.");
        setTitle("AWS SDK for Java");

        ImageRegistry imageRegistry = AwsToolkitCore.getDefault().getImageRegistry();
        setImageDescriptor(imageRegistry.getDescriptor(AwsToolkitCore.IMAGE_AWS_LOGO));
    }

    /**
     * @see org.eclipse.jface.dialogs.IDialogPage#createControl(org.eclipse.swt.widgets.Composite)
     */
    public void createControl(Composite parent) {
        JavaSdkInstall currentSdk = null;
        try {
            SdkProjectMetadata sdkProjectMetadataFile = new SdkProjectMetadata(project.getProject());

            currentSdk = new JavaSdkInstall(sdkProjectMetadataFile.getSdkInstallRootForProject());
        } catch (IOException e) {
            e.printStackTrace();
        }
        if (currentSdk.getRootDirectory() == null) {
            sdkVersionInfoComposite = new SdkVersionInfoComposite(parent);
        } else {
            sdkVersionInfoComposite = new SdkVersionInfoComposite(parent, currentSdk);
        }
        this.setControl(sdkVersionInfoComposite);
    }

    public boolean finish() {
        try {
            SdkProjectMetadata sdkProjectMetadataFile = new SdkProjectMetadata(project.getProject());
            AwsSdkClasspathUtils.removeAwsSdkFromProjectClasspath(
                    project, new JavaSdkInstall(sdkProjectMetadataFile.getSdkInstallRootForProject()));
            sdkVersionInfoComposite.getCurrentSdk().writeMetadataToProject(project);
            AwsSdkClasspathUtils.addAwsSdkToProjectClasspath(
                    project, sdkVersionInfoComposite.getCurrentSdk());
        } catch (IOException e) {
            e.printStackTrace();
            return false;
        }

        return true;
    }

    /**
     * @see org.eclipse.jdt.ui.wizards.IClasspathContainerPageExtension#initialize(org.eclipse.jdt.core.IJavaProject, org.eclipse.jdt.core.IClasspathEntry[])
     */
    public void initialize(IJavaProject project, IClasspathEntry[] currentEntries) {
        this.project = project;
    }

    /**
     * @see org.eclipse.jdt.ui.wizards.IClasspathContainerPage#getSelection()
     */
    public IClasspathEntry getSelection() {
        return JavaCore.newContainerEntry(AwsClasspathContainer.ID);
    }

    /**
     * @see org.eclipse.jdt.ui.wizards.IClasspathContainerPage#setSelection(org.eclipse.jdt.core.IClasspathEntry)
     */
    public void setSelection(IClasspathEntry containerEntry) {}

}