in.cypal.studio.gwt.core.facet.UpgradeDelegate.java Source code

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Here is the source code for in.cypal.studio.gwt.core.facet.UpgradeDelegate.java

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/*
 * Copyright 2008 Cypal Solutions (tools@cypal.in)
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *     http://www.apache.org/licenses/LICENSE-2.0
 * 
 * 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 in.cypal.studio.gwt.core.facet;

import in.cypal.studio.gwt.core.Activator;
import in.cypal.studio.gwt.core.common.Util;

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

import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.SubProgressMonitor;
import org.eclipse.jdt.core.IClasspathEntry;
import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.jdt.core.JavaCore;
import org.eclipse.jdt.core.JavaModelException;
import org.eclipse.wst.common.componentcore.ComponentCore;
import org.eclipse.wst.common.project.facet.core.IDelegate;
import org.eclipse.wst.common.project.facet.core.IProjectFacetVersion;

/**
 * @author Prakash G.R.
 * 
 */
public class UpgradeDelegate implements IDelegate {

    public void execute(IProject project, IProjectFacetVersion facetVersion, Object config,
            IProgressMonitor monitor) throws CoreException {

        monitor = Util.getNonNullMonitor(monitor);
        monitor.beginTask("Updating classpath...", 3);
        try {

            removeGWTEntries(project, new SubProgressMonitor(monitor, 1));
            InstallDelegate.addUserLibToClassPath(project, new SubProgressMonitor(monitor, 1));
            InstallDelegate.addServletLibToWebInf(project, new SubProgressMonitor(monitor, 1));

        } catch (CoreException e) {
            Activator.logException(e);
        } finally {
            monitor.done();
        }

    }

    private void removeGWTEntries(IProject project, IProgressMonitor monitor) throws JavaModelException {

        monitor = Util.getNonNullMonitor(monitor);
        monitor.beginTask("Removing old entries...", 2);
        try {

            IJavaProject javaProject = JavaCore.create(project);
            List<IClasspathEntry> classpathEntries = new ArrayList<IClasspathEntry>();

            IClasspathEntry[] oldClasspath = javaProject.getRawClasspath();
            for (IClasspathEntry classpathEntry : oldClasspath) {
                if (!classpathEntry.getPath().lastSegment().startsWith("gwt"))
                    classpathEntries.add(classpathEntry);
            }
            javaProject.setRawClasspath(classpathEntries.toArray(new IClasspathEntry[classpathEntries.size()]),
                    new SubProgressMonitor(monitor, 1));

            IPath webContent = ComponentCore.createComponent(project).getRootFolder().getProjectRelativePath();
            IFile theLink = project.getFile(webContent.append("WEB-INF").append("lib").append("gwt-servlet.jar"));
            theLink.delete(true, new SubProgressMonitor(monitor, 1));

        } catch (CoreException e) {
            Activator.logException(e);
        } finally {
            monitor.done();
        }
    }

}