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/*******************************************************************************
* Copyright (c) 2010 Oracle. 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
*
* Contributors:
* Oracle - initial API and implementation
*******************************************************************************/
package org.eclipse.jpt.common.core.internal.resource;
import org.eclipse.core.resources.IContainer;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IFolder;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.Path;
import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.jdt.core.IPackageFragmentRoot;
import org.eclipse.jdt.core.JavaCore;
import org.eclipse.jdt.core.JavaModelException;
import org.eclipse.jpt.common.core.JptCommonCorePlugin;
import org.eclipse.jpt.common.core.internal.utility.PlatformTools;
import org.eclipse.jpt.common.core.resource.ResourceLocator;
import org.eclipse.jst.j2ee.internal.J2EEConstants;
public class SimpleJavaResourceLocator
implements ResourceLocator {
protected static IPath META_INF_PATH = new Path(J2EEConstants.META_INF);
/**
* Simply ensure the container is either:
* - on the java project classpath
* or
* - in the non-java resources, but not in the project output location
*/
public boolean acceptResourceLocation(IProject project, IContainer container) {
IJavaProject javaProject = getJavaProject(project);
if (javaProject.isOnClasspath(container)) {
return true;
}
try {
IPath outputLocation = javaProject.getOutputLocation();
if (container.equals(project) && outputLocation.isPrefixOf(container.getFullPath())) {
return true;
}
for (Object resource : javaProject.getNonJavaResources()) {
if (resource instanceof IFolder) {
IFolder folder = (IFolder) resource;
if ((folder.equals(container) || folder.contains(container))
&& ! outputLocation.isPrefixOf(container.getFullPath())) {
return true;
}
}
}
}
catch (JavaModelException jme) {
JptCommonCorePlugin.log(jme);
// only happens if the java project doesn't exist. fall through.
}
return false;
}
/**
* Return
* - the first package fragment root (source folder) META-INF folder if it exists,
* or
* - the project rooted META-INF folder if it exists
* or
* - the non-existent META-INF folder in the first package fragment root (source folder)
*/
public IContainer getDefaultResourceLocation(IProject project) {
IJavaProject javaProject = getJavaProject(project);
IContainer defaultLocation = null;
try {
for (IPackageFragmentRoot root : javaProject.getPackageFragmentRoots()) {
if (root.getKind() == IPackageFragmentRoot.K_SOURCE) {
IContainer rootContainer = (IContainer) root.getUnderlyingResource();
IFolder metaInfFolder = rootContainer.getFolder(META_INF_PATH);
if (metaInfFolder.exists()) {
return metaInfFolder;
}
if (defaultLocation == null) {
// hold on to this in case the META-INF folder can't be found
defaultLocation = metaInfFolder;
}
}
}
IFolder metaInfFolder = project.getFolder(META_INF_PATH);
if (metaInfFolder.exists()) {
return metaInfFolder;
}
}
catch (JavaModelException jme) {
// only happens if the java project doesn't exist or there is some problem with the
// java resources. fall through.
JptCommonCorePlugin.log(jme);
}
return defaultLocation;
}
public IPath getResourcePath(IProject project, IPath runtimePath) {
IJavaProject javaProject = getJavaProject(project);
IPath firstResourcePath = null;
try {
for (IPackageFragmentRoot root : javaProject.getPackageFragmentRoots()) {
if (root.getKind() == IPackageFragmentRoot.K_SOURCE) {
IContainer rootContainer = (IContainer) root.getUnderlyingResource();
IPath resourcePath = rootContainer.getFullPath().append(runtimePath);
if (firstResourcePath == null) {
firstResourcePath = resourcePath;
}
IFile file = project.getWorkspace().getRoot().getFile(resourcePath);
if (file.exists()) {
return file.getFullPath();
}
}
}
}
catch (JavaModelException jme) {
JptCommonCorePlugin.log(jme);
return null;
}
return firstResourcePath;
}
public IPath getRuntimePath(IProject project, IPath resourcePath) {
IJavaProject javaProject = getJavaProject(project);
IFile file = PlatformTools.getFile(resourcePath);
try {
for (IPackageFragmentRoot root : javaProject.getPackageFragmentRoots()) {
if (root.getKind() == IPackageFragmentRoot.K_SOURCE) {
IContainer rootContainer = (IContainer) root.getUnderlyingResource();
if (rootContainer.contains(file)) {
return resourcePath.makeRelativeTo(rootContainer.getFullPath());
}
}
}
}
catch (JavaModelException jme) {
// fall through
JptCommonCorePlugin.log(jme);
}
return resourcePath.makeRelativeTo(project.getFullPath());
}
private IJavaProject getJavaProject(IProject project) {
return JavaCore.create(project);
}
}
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