/*
* Copyright 2006 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.Constants;
import in.cypal.studio.gwt.core.common.Util;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IProjectDescription;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.Path;
import org.eclipse.core.runtime.SubProgressMonitor;
import org.eclipse.jdt.core.IAccessRule;
import org.eclipse.jdt.core.IClasspathAttribute;
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 InstallDelegate implements IDelegate{
public void execute(IProject project, IProjectFacetVersion facetVersion, Object config, IProgressMonitor monitor) throws CoreException {
monitor = Util.getNonNullMonitor(monitor);
try {
monitor.beginTask("", 3);
addNature(project, new SubProgressMonitor(monitor, 1));
addUserLibToClassPath(project, new SubProgressMonitor(monitor, 1));
addServletLibToWebInf(project, new SubProgressMonitor(monitor, 1));
}catch(CoreException e) {
monitor.setCanceled(true);
Activator.logException(e);
}finally {
monitor.done();
}
}
private void addServletLibToWebInf(IProject project, IProgressMonitor monitor){
monitor = Util.getNonNullMonitor(monitor);
try {
IPath webContent = ComponentCore.createComponent(project).getRootFolder().getProjectRelativePath();
IFile theLink = project.getFile(webContent.append("WEB-INF").append("lib").append("gwt-servlet.jar"));
IPath actualLocation = new Path(Constants.GWT_HOME_PATH+"/gwt-servlet.jar");
theLink.createLink(actualLocation, IResource.REPLACE, null);
} catch (CoreException e) {
// the jar is already in the classpath.
Activator.logException(e);
}finally {
monitor.done();
}
}
private void addUserLibToClassPath(IProject project, IProgressMonitor monitor){
monitor = Util.getNonNullMonitor(monitor);
try {
monitor.beginTask("", 1);
IJavaProject javaProject = JavaCore.create(project);
IClasspathEntry[] oldClasspath = javaProject.getRawClasspath();
IClasspathEntry[] newClasspath = new IClasspathEntry[oldClasspath.length+1];
System.arraycopy(oldClasspath, 0, newClasspath, 0, oldClasspath.length);
IClasspathEntry gwtUserJarEntry = JavaCore.newVariableEntry(Util.getGwtUserLibPath(), null, null);
IClasspathAttribute attr = JavaCore.newClasspathAttribute("org.eclipse.jst.component.dependency", "/WEB-INF/lib");
gwtUserJarEntry = JavaCore.newVariableEntry(gwtUserJarEntry.getPath(), null, null, new IAccessRule[0], new IClasspathAttribute[] {attr}, false);
newClasspath[oldClasspath.length] = gwtUserJarEntry;
javaProject.setRawClasspath(newClasspath, monitor);
} catch (JavaModelException e) {
// the jar is already in the classpath.
Activator.logException(e);
}finally {
monitor.done();
}
}
private void addNature(IProject project, IProgressMonitor monitor) throws CoreException {
monitor = Util.getNonNullMonitor(monitor);
try {
monitor.beginTask("", 1);
IProjectDescription description = project.getDescription();
String[] prevNatures= description.getNatureIds();
String[] newNatures= new String[prevNatures.length + 1];
System.arraycopy(prevNatures, 0, newNatures, 1, prevNatures.length);
newNatures[0]= Constants.NATURE_ID;
description.setNatureIds(newNatures);
project.setDescription(description, IResource.FORCE, null);
}finally {
monitor.done();
}
}
}