/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 org.apache.jackrabbit.oak.http;
import java.io.IOException;
import java.net.URLEncoder;
import javax.servlet.http.HttpServletResponse;
import javax.xml.transform.OutputKeys;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerConfigurationException;
import javax.xml.transform.sax.SAXTransformerFactory;
import javax.xml.transform.sax.TransformerHandler;
import javax.xml.transform.stream.StreamResult;
import org.apache.jackrabbit.oak.api.PropertyState;
import org.apache.jackrabbit.oak.api.Tree;
import org.apache.tika.metadata.Metadata;
import org.apache.tika.mime.MediaType;
import org.apache.tika.sax.XHTMLContentHandler;
import org.xml.sax.SAXException;
import com.google.common.base.Charsets;
import static org.apache.jackrabbit.oak.api.Type.STRING;
import static org.apache.jackrabbit.oak.api.Type.STRINGS;
class HtmlRepresentation implements Representation {
@Override
public MediaType getType() {
return MediaType.text("html");
}
public void render(Tree tree, HttpServletResponse response)
throws IOException {
try {
XHTMLContentHandler xhtml = startResponse(response, tree.getPath());
xhtml.startDocument();
xhtml.startElement("dl");
for (PropertyState property : tree.getProperties()) {
xhtml.element("dt", property.getName());
if (property.isArray()) {
xhtml.startElement("dd");
xhtml.startElement("ol");
for (String value : property.getValue(STRINGS)) {
xhtml.element("li", value);
}
xhtml.endElement("ol");
xhtml.endElement("dd");
} else {
xhtml.element("dd", property.getValue(STRING));
}
}
for (Tree child : tree.getChildren()) {
String name = child.getName();
xhtml.element("dt", name);
xhtml.startElement("dd");
xhtml.startElement("a", "href", response.encodeRedirectURL(
URLEncoder.encode(name, Charsets.UTF_8.name()) + "/"));
xhtml.characters(child.getPath());
xhtml.endElement("a");
xhtml.endElement("dd");
}
xhtml.endElement("dl");
xhtml.endDocument();
} catch (SAXException e) {
throw new IOException(e);
}
}
public void render(PropertyState property, HttpServletResponse response)
throws IOException {
try {
XHTMLContentHandler xhtml =
startResponse(response, property.getName());
xhtml.startDocument();
if (property.isArray()) {
xhtml.startElement("ol");
for (String value : property.getValue(STRINGS)) {
xhtml.element("li", value);
}
xhtml.endElement("ol");
} else {
xhtml.element("p", property.getValue(STRING));
}
xhtml.endDocument();
} catch (SAXException e) {
throw new IOException(e);
}
}
private XHTMLContentHandler startResponse(
HttpServletResponse response, String title)
throws IOException {
try {
response.setContentType("text/html");
response.setCharacterEncoding("UTF-8");
SAXTransformerFactory factory =
(SAXTransformerFactory) SAXTransformerFactory.newInstance();
TransformerHandler handler = factory.newTransformerHandler();
Transformer transformer = handler.getTransformer();
transformer.setOutputProperty(OutputKeys.METHOD, "html");
transformer.setOutputProperty(OutputKeys.ENCODING, "UTF-8");
handler.setResult(new StreamResult(response.getOutputStream()));
Metadata metadata = new Metadata();
metadata.set(Metadata.TITLE, title);
return new XHTMLContentHandler(handler, metadata);
} catch (TransformerConfigurationException e) {
throw new IOException(e);
}
}
}