com.google.gdt.eclipse.suite.launch.processors.AppengineClasspathProvider.java Source code

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Here is the source code for com.google.gdt.eclipse.suite.launch.processors.AppengineClasspathProvider.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.gdt.eclipse.suite.launch.processors;

import com.google.appengine.eclipse.core.nature.GaeNature;
import com.google.appengine.eclipse.core.properties.GoogleCloudSqlProperties;
import com.google.appengine.eclipse.core.sdk.AppEngineBridge;
import com.google.appengine.eclipse.core.sdk.GaeSdk;
import com.google.common.collect.Sets;
import com.google.gwt.eclipse.core.launch.ModuleClasspathProvider;

import org.eclipse.core.resources.IProject;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.Path;
import org.eclipse.debug.core.ILaunchConfiguration;
import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.jdt.launching.IJavaLaunchConfigurationConstants;
import org.eclipse.jdt.launching.IRuntimeClasspathEntry;
import org.eclipse.jdt.launching.JavaRuntime;

import java.util.Arrays;
import java.util.Set;

/**
 * Generates the runtime classpath based Appengine project properties.
 */
public class AppengineClasspathProvider extends ModuleClasspathProvider {

    /**
     * Provides the id of a classpath provider (for the
     * org.eclipse.jdt.launching.classpathProvider extension point).
     */
    public static class AppengineClasspathProviderIdProvider
            implements ModuleClasspathProvider.IModuleClasspathProviderIdProvider {

        public String getProviderId(IProject project) {
            if (!GaeNature.isGaeProject(project)) {
                return null;
            }
            return "com.google.gdt.eclipse.suite.appengineClasspathProvider";
        }
    }

    @Override
    public IRuntimeClasspathEntry[] computeUnresolvedClasspath(ILaunchConfiguration config) throws CoreException {
        IRuntimeClasspathEntry[] unresolvedClasspathEntries = super.computeUnresolvedClasspath(config);
        IJavaProject project = JavaRuntime.getJavaProject(config);
        if (project == null || !project.getProject().hasNature(GaeNature.NATURE_ID)) {
            return unresolvedClasspathEntries;
        }
        boolean useDefault = config.getAttribute(IJavaLaunchConfigurationConstants.ATTR_DEFAULT_CLASSPATH, true);
        if (!useDefault) {
            return unresolvedClasspathEntries;
        }

        if (!GaeNature.isGaeProject(project.getProject())) {
            return unresolvedClasspathEntries;
        }

        if (!GoogleCloudSqlProperties.getGoogleCloudSqlEnabled(project.getProject())) {
            return unresolvedClasspathEntries;
        }

        IPath jdbcDriverPath = Path.fromOSString(GaeSdk.findSdkFor(project).getInstallationPath()
                + AppEngineBridge.APPENGINE_CLOUD_SQL_JAR_PATH_IN_SDK + AppEngineBridge.APPENGINE_CLOUD_SQL_JAR);

        if (!jdbcDriverPath.isAbsolute()) {
            return unresolvedClasspathEntries;
        }
        IRuntimeClasspathEntry jdbcJar = JavaRuntime.newArchiveRuntimeClasspathEntry(jdbcDriverPath);
        Set<IRuntimeClasspathEntry> updatedUnresolvedClasspathEntries = Sets
                .newLinkedHashSet(Arrays.asList(unresolvedClasspathEntries));
        updatedUnresolvedClasspathEntries.add(jdbcJar);
        return updatedUnresolvedClasspathEntries
                .toArray(new IRuntimeClasspathEntry[updatedUnresolvedClasspathEntries.size()]);
    }
}