/**
* Copyright 2005-2013 Restlet S.A.S.
*
* The contents of this file are subject to the terms of one of the following
* open source licenses: Apache 2.0 or LGPL 3.0 or LGPL 2.1 or CDDL 1.0 or EPL
* 1.0 (the "Licenses"). You can select the license that you prefer but you may
* not use this file except in compliance with one of these Licenses.
*
* You can obtain a copy of the Apache 2.0 license at
* http://www.opensource.org/licenses/apache-2.0
*
* You can obtain a copy of the LGPL 3.0 license at
* http://www.opensource.org/licenses/lgpl-3.0
*
* You can obtain a copy of the LGPL 2.1 license at
* http://www.opensource.org/licenses/lgpl-2.1
*
* You can obtain a copy of the CDDL 1.0 license at
* http://www.opensource.org/licenses/cddl1
*
* You can obtain a copy of the EPL 1.0 license at
* http://www.opensource.org/licenses/eclipse-1.0
*
* See the Licenses for the specific language governing permissions and
* limitations under the Licenses.
*
* Alternatively, you can obtain a royalty free commercial license with less
* limitations, transferable or non-transferable, directly at
* http://www.restlet.com/products/restlet-framework
*
* Restlet is a registered trademark of Restlet S.A.S.
*/
package org.restlet.ext.emf.internal;
import java.io.IOException;
import java.io.Writer;
import org.eclipse.emf.common.util.EList;
import org.eclipse.emf.ecore.EAnnotation;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.EStructuralFeature;
/**
* Offers a generic HTML representation of an EMF object. It lists all its
* properties and can even generate HTML links when the proper EMF eAnnotation
* is detected.
*
* This is useful to be able to automatically navigate a web API whose resource
* representations are defined using EMF.
*
* @author Jerome Louvel
*/
public class EmfHtmlWriter {
public static final String ANNOTATION_URI = "http://www.restlet.org/schemas/2011/emf/html";
private final EObject object;
/**
* Returns the EMF object to write.
*
* @return The EMF object to write.
*/
public EObject getObject() {
return object;
}
/**
* Constructor.
*
* @param object
*/
public EmfHtmlWriter(EObject object) {
this.object = object;
}
/**
* Writes the wrapped EMF object as an HTML document.
*
* @param writer
* The writer to use.
* @throws IOException
*/
@SuppressWarnings("unchecked")
public void write(Writer writer) throws IOException {
String title = null;
EClass eClass = getObject().eClass();
EAnnotation annotation = eClass.getEAnnotation(ANNOTATION_URI);
if (annotation != null) {
title = (String) annotation.getDetails().get("label");
}
title = (title == null) ? eClass.getName() : title;
// Write the header
writer.write("\n");
writer.write("\n");
writer.write("
" + title + "
\n");
writer.write("
\n");
writer.write("\n");
writer.write("
");
writer.write("
Property
\n");
writer.write("
Value
\n");
writer.write("
\n");
writer.write("\n");
writer.write("\n");
// Write the object properties
for (EObject content : eClass.eContents()) {
if (content instanceof EStructuralFeature) {
EStructuralFeature sf = (EStructuralFeature) content;
String label = null;
boolean hyperlink = false;
annotation = sf.getEAnnotation(ANNOTATION_URI);
if (annotation != null) {
label = (String) annotation.getDetails().get("label");
hyperlink = Boolean.parseBoolean(annotation.getDetails()
.get("linked"));
}
label = (label == null) ? sf.getName() : label;
Object value = getObject().eGet(sf);
if (value instanceof EList) {
EList\n");
writer.write("