/*
* Copyright (c) 2011 Google Inc.
*
* 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
*/
package com.google.eclipse.protobuf.ui.resource;
import static java.util.Collections.singletonMap;
import static org.eclipse.emf.common.util.URI.createURI;
import static org.eclipse.emf.ecore.resource.ContentHandler.UNSPECIFIED_CONTENT_TYPE;
import static org.eclipse.xtext.EcoreUtil2.resolveLazyCrossReferences;
import static org.eclipse.xtext.resource.XtextResource.OPTION_ENCODING;
import static org.eclipse.xtext.util.CancelIndicator.NullImpl;
import static com.google.eclipse.protobuf.util.Encodings.UTF_8;
import java.io.IOException;
import org.eclipse.emf.common.util.URI;
import org.eclipse.emf.ecore.resource.ResourceSet;
import org.eclipse.xtext.resource.XtextResource;
import org.eclipse.xtext.ui.resource.IResourceSetProvider;
import org.eclipse.xtext.util.StringInputStream;
import com.google.eclipse.protobuf.ui.util.IProjects;
import com.google.inject.Inject;
import com.google.inject.Singleton;
/**
* Factory of <code>{@link XtextResource}</code>s.
*
* @author alruiz@google.com (Alex Ruiz)
*/
@Singleton public class XtextResourceFactory {
@Inject private IResourceSetProvider resourceSetProvider;
@Inject private IProjects projects;
/**
* Creates a new <code>{@link XtextResource}</code>.
* @param uri the URI of the file containing the EMF model.
* @param contents the contents of the file.
* @return the created {@code XtextResource}.
* @throws IOException if something goes wrong.
*/
public XtextResource createResource(String uri, String contents) throws IOException {
return createResource(createURI(uri), contents);
}
/**
* Creates a new <code>{@link XtextResource}</code>.
* @param uri the URI of the file containing the EMF model.
* @param contents the contents of the file.
* @return the created {@code XtextResource}.
* @throws IOException if something goes wrong.
*/
public XtextResource createResource(URI uri, String contents) throws IOException {
// TODO get project from URI.
ResourceSet resourceSet = resourceSetProvider.get(projects.activeProject());
XtextResource resource = (XtextResource) resourceSet.createResource(uri, UNSPECIFIED_CONTENT_TYPE);
resource.load(new StringInputStream(contents), singletonMap(OPTION_ENCODING, UTF_8));
resolveLazyCrossReferences(resource, NullImpl);
return resource;
}
}