com.google.appengine.eclipse.core.sdk.AppEngineUpdateProjectSdkCommand.java Source code

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Here is the source code for com.google.appengine.eclipse.core.sdk.AppEngineUpdateProjectSdkCommand.java

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/*******************************************************************************
 * 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.appengine.eclipse.core.sdk;

import com.google.appengine.eclipse.core.preferences.GaePreferences;
import com.google.appengine.eclipse.core.properties.GaeProjectProperties;
import com.google.gdt.eclipse.core.ClasspathUtilities;
import com.google.gdt.eclipse.core.sdk.Sdk;
import com.google.gdt.eclipse.core.sdk.SdkClasspathContainer;
import com.google.gdt.eclipse.core.sdk.UpdateProjectSdkCommand;
import com.google.gdt.eclipse.core.sdk.UpdateWebInfFolderCommand;

import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IPath;
import org.eclipse.jdt.core.IClasspathEntry;
import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.jdt.core.JavaCore;

import java.util.Arrays;
import java.util.Collections;
import java.util.List;

/**
 * Command for updating a project to use an SDK container.
 */
public class AppEngineUpdateProjectSdkCommand extends UpdateProjectSdkCommand<GaeSdk> {

    public static <T extends Sdk> UpdateType computeUpdateType(GaeSdk oldSdk, GaeSdk newSdk, boolean isDefault) {
        return computeUpdateType(oldSdk, newSdk, isDefault, GaePreferences.getSdks(), GaeSdkContainer.CONTAINER_ID);
    }

    static IPath computeAppEngineSdkInstallPath(IJavaProject javaProject) throws CoreException {
        assert (ClasspathUtilities.findClasspathEntryContainer(javaProject.getRawClasspath(),
                GaeSdkContainer.CONTAINER_ID) == null);
        for (IClasspathEntry entry : javaProject.getRawClasspath()) {
            entry = JavaCore.getResolvedClasspathEntry(entry);
            IPath entryPath = entry.getPath();
            String fileName = entryPath.lastSegment();
            if (fileName.matches("appengine\\-tools\\-api.*\\.jar")) {
                if (entryPath.segmentCount() > 2) {
                    // TODO: We should check that the jar exists on disk. Throw a
                    // CoreException with a more informative message.
                    return entryPath.removeLastSegments(2);
                }
            }
        }
        return null;
    }

    public AppEngineUpdateProjectSdkCommand(IJavaProject javaProject, GaeSdk oldSdk, GaeSdk newSdk,
            UpdateType updateType, UpdateWebInfFolderCommand updateWebInfFolderCommand) {
        super(javaProject, oldSdk, newSdk, updateType, updateWebInfFolderCommand);
    }

    // TODO: This function is essentially same as the one it overrides. It just adds datanucleus
    // version to the containerPath. De-duplicate the code.
    @Override
    protected List<IClasspathEntry> computeBuildClasspathEntriesToAdd() {
        GaeSdk newSdk = getNewSdk();
        UpdateType updateType = getUpdateType();
        if (newSdk != null) {
            if (updateType == UpdateType.RAW) {
                return Arrays.asList(newSdk.getClasspathEntries(getJavaProject()));
            } else {
                IPath containerPath = SdkClasspathContainer.computeContainerPath(getContainerId(), newSdk,
                        updateType == UpdateType.DEFAULT_CONTAINER ? SdkClasspathContainer.Type.DEFAULT
                                : SdkClasspathContainer.Type.NAMED);
                if (GaeProjectProperties.getGaeDatanucleusEnabled(getJavaProject().getProject())) {
                    String datanucleusVersion = GaeProjectProperties
                            .getGaeDatanucleusVersion(getJavaProject().getProject());
                    if (datanucleusVersion != null && !datanucleusVersion.isEmpty()) {
                        containerPath = containerPath.append(datanucleusVersion);
                    }
                }
                return Collections.singletonList(JavaCore.newContainerEntry(containerPath));
            }
        }
        return Collections.emptyList();
    }

    @Override
    protected String getContainerId() {
        return GaeSdkContainer.CONTAINER_ID;
    }
}