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/**
* Copyright (c) 2012 Mia-Software.
*
* 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:
* Alban Ménager (Soft-Maint) - Bug 387470 - [EFacet][Custom] Editors
* Grégoire Dupé (Mia-Software) - Bug 387470 - [EFacet][Custom] Editors
*/
package org.eclipse.papyrus.emf.facet.query.java.sdk.ui.internal.wizard;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.jar.Manifest;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.runtime.NullProgressMonitor;
import org.eclipse.core.runtime.Path;
import org.eclipse.emf.codegen.ecore.genmodel.GenModel;
import org.eclipse.emf.common.util.URI;
import org.eclipse.emf.ecore.EClassifier;
import org.eclipse.emf.ecore.EPackage;
import org.eclipse.emf.ecore.plugin.EcorePlugin;
import org.eclipse.emf.ecore.resource.Resource;
import org.eclipse.emf.ecore.resource.ResourceSet;
import org.eclipse.emf.ecore.resource.impl.ResourceSetImpl;
import org.eclipse.jdt.core.ICompilationUnit;
import org.eclipse.jdt.core.IPackageFragment;
import org.eclipse.jdt.core.IPackageFragmentRoot;
import org.eclipse.jdt.core.JavaModelException;
import org.eclipse.osgi.util.ManifestElement;
import org.eclipse.papyrus.emf.facet.query.java.sdk.ui.internal.Activator;
import org.eclipse.papyrus.emf.facet.util.core.Logger;
import org.eclipse.papyrus.emf.facet.util.core.internal.JavaUtils;
import org.eclipse.papyrus.emf.facet.util.pde.core.internal.exported.PluginUtils;
public final class JdtUtils {
private JdtUtils() {
// Must no be used
}
public static ICompilationUnit createJavaClass(
final EClassifier returnTypeClass,
final boolean multiValues, final EClassifier scope,
final IPackageFragment packageFragment,
final IPackageFragmentRoot root,
final String typeName, final String cuName)
throws JavaModelException {
IPackageFragment packgeFragment2;
if (packageFragment == null) {
packgeFragment2 = root.getPackageFragment(""); //$NON-NLS-1$
} else {
packgeFragment2 = packageFragment;
}
final String packageName = packgeFragment2.getElementName();
if (!packgeFragment2.exists()) {
packgeFragment2 = root.createPackageFragment(packageName, true,
new NullProgressMonitor());
}
final StringBuilder contents = new StringBuilder();
createJavaClassContents(contents, typeName, packageName,
returnTypeClass, multiValues, scope);
return packgeFragment2.createCompilationUnit(cuName,
contents.toString(),
false, new NullProgressMonitor());
}
private static void createJavaClassContents(final StringBuilder contents,
final String name, final String packageName,
final EClassifier returnTypeClass, final boolean multiValues,
final EClassifier scope) {
if (packageName.length() > 0) {
contents.append("package "); //$NON-NLS-1$
contents.append(packageName);
contents.append(";\n\n"); //$NON-NLS-1$
}
boolean importCollection = false;
String returnType;
String shortReturnType;
if (returnTypeClass == null) {
returnType = "java.lang.Object"; //$NON-NLS-1$
shortReturnType = "Object"; //$NON-NLS-1$
} else {
returnType = returnTypeClass.getInstanceClassName();
returnType = JavaUtils.objectType(returnType);
final int lastDotPos = returnType.lastIndexOf('.');
if (multiValues) {
importCollection = true;
shortReturnType = "Collection<" + returnType.substring(lastDotPos + 1) + ">"; //$NON-NLS-1$//$NON-NLS-2$
} else {
shortReturnType = returnType.substring(lastDotPos + 1);
}
}
// EList<EClass> scope = modelQuery.getScope();
String scopeType;
String shortScopeType;
// if (scope != null && scope.size() == 1) {
if (scope == null) {
scopeType = "org.eclipse.emf.ecore.EObject"; //$NON-NLS-1$
shortScopeType = "EObject"; //$NON-NLS-1$
} else {
scopeType = scope.getInstanceClassName();
scopeType = JavaUtils.objectType(scopeType);
shortScopeType = scopeType
.substring(scopeType.lastIndexOf('.') + 1);
}
if (importCollection) {
contents.append("import java.util.Collection;\n"); //$NON-NLS-1$
}
if (mustImport(returnType)) {
contents.append("import " + returnType + ";\n"); //$NON-NLS-1$ //$NON-NLS-2$
}
if (!returnType.equals(scopeType) && mustImport(scopeType)) {
contents.append("import " + scopeType + ";\n"); //$NON-NLS-1$ //$NON-NLS-2$
}
contents.append("import org.eclipse.papyrus.emf.facet.efacet.core.IFacetManager;\n"); //$NON-NLS-1$
contents.append("import org.eclipse.papyrus.emf.facet.efacet.core.exception.DerivedTypedElementException;\n"); //$NON-NLS-1$
contents.append("import org.eclipse.papyrus.emf.facet.query.java.core.IJavaQuery2;\n"); //$NON-NLS-1$
contents.append("import org.eclipse.papyrus.emf.facet.query.java.core.IParameterValueList2;\n"); //$NON-NLS-1$
contents.append("\n"); //$NON-NLS-1$
contents.append("public class " + name + " implements IJavaQuery2<" + shortScopeType + ", " + shortReturnType + "> {\n"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
contents.append(" public " + shortReturnType + " evaluate(final " + shortScopeType + " context, \n"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
contents.append(" final IParameterValueList2 parameterValues,\n"); //$NON-NLS-1$
contents.append(" final IFacetManager facetManager)\n"); //$NON-NLS-1$
contents.append(" throws DerivedTypedElementException {\n"); //$NON-NLS-1$
contents.append(" // TODO Auto-generated method stub\n"); //$NON-NLS-1$
contents.append(" return null;\n"); //$NON-NLS-1$
contents.append(" }\n"); //$NON-NLS-1$
contents.append("}\n"); //$NON-NLS-1$
}
private static boolean mustImport(final String type) {
return type.contains(".") && !type.startsWith("java.lang."); //$NON-NLS-1$ //$NON-NLS-2$
}
/**
* Setup the given project's Manifest so that metamodels referenced by the
* query's <code>returnType</code> and <code>scope</code> are available on
* the classpath.
*/
public static void setupProject(final IProject project,
final EClassifier returnType, final EClassifier scope) {
try {
final String[] requiredBundles = findRequiredBundles(returnType,
scope);
// start with all and then remove those already present
final List<String> missingBundles = new ArrayList<String>();
for (final String requiredBundle : requiredBundles) {
missingBundles.add(requiredBundle);
}
missingBundles.add("org.eclipse.papyrus.emf.facet.efacet.core"); //$NON-NLS-1$
missingBundles.add("org.eclipse.papyrus.emf.facet.query.java.core"); //$NON-NLS-1$
PluginUtils.configureAsPluginProject(project);
final IFile manifestResource = (IFile) project.findMember(new Path("/META-INF/MANIFEST.MF")); //$NON-NLS-1$
manifestResource.refreshLocal(IResource.DEPTH_ONE,
new NullProgressMonitor());
final InputStream contents = manifestResource.getContents();
final Manifest manifest = new Manifest(contents);
final String requires = manifest.getMainAttributes().getValue("Require-Bundle"); //$NON-NLS-1$
if (requires != null) {
final ManifestElement[] manifestElements = ManifestElement
.parseHeader("Require-Bundle", requires); //$NON-NLS-1$
for (final ManifestElement manifestElement : manifestElements) {
// make sure it won't be duplicated
missingBundles.remove(manifestElement.getValue());
}
}
final StringBuilder newRequires = new StringBuilder();
if (requires != null) {
newRequires.append(requires);
}
for (int i = 0; i < missingBundles.size(); i++) {
final String missingBundle = missingBundles.get(i);
if ((i != 0) || (requires != null)) {
newRequires.append(","); //$NON-NLS-1$
}
newRequires.append(missingBundle);
}
manifest.getMainAttributes().putValue("Require-Bundle", newRequires.toString()); //$NON-NLS-1$
final ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
manifest.write(outputStream);
final ByteArrayInputStream inputStream = new ByteArrayInputStream(
outputStream.toByteArray());
manifestResource.setContents(inputStream, true, true,
new NullProgressMonitor());
} catch (final Exception e) {
Logger.logError(e, Activator.getDefault());
}
}
/**
* Find the bundles containing the implementations of the metamodels
* referenced by the given classifiers.
*/
private static String[] findRequiredBundles(final EClassifier returnType,
final EClassifier scope) {
final Set<String> requiredBundles = new HashSet<String>();
final Set<EPackage> requiredEPackages = new HashSet<EPackage>();
if (returnType != null) {
requiredEPackages.add(returnType.getEPackage());
}
if (scope != null) {
requiredEPackages.add(scope.getEPackage());
}
final Map<String, URI> genModelLocMap = EcorePlugin
.getEPackageNsURIToGenModelLocationMap();
for (final EPackage ePackage : requiredEPackages) {
try {
final URI genModelURI = genModelLocMap.get(ePackage.getNsURI());
if (genModelURI == null) {
Logger.logWarning(
"Couldn't add the metamodel implementation plug-in" //$NON-NLS-1$
+ " to the dependencies automatically because" //$NON-NLS-1$
+ " the corresponding genmodel couldn't be found: " //$NON-NLS-1$
+ ePackage.getNsURI(),
Activator.getDefault());
} else {
final ResourceSet resourceSet = createResource();
final Resource resource = resourceSet
.createResource(genModelURI);
resource.load(Collections.emptyMap());
final GenModel genModel = (GenModel) resource.getContents()
.get(0);
final String modelPluginID = genModel.getModelPluginID();
if (modelPluginID != null) {
requiredBundles.add(modelPluginID);
}
}
} catch (final Exception e) {
Logger.logError(e, Activator.getDefault());
}
}
return requiredBundles.toArray(new String[requiredBundles.size()]);
}
private static ResourceSetImpl createResource() {
return new ResourceSetImpl();
}
}
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