/*
* 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.sling.servlets.get.impl.helpers;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Iterator;
import java.util.Map;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletResponse;
import org.apache.sling.api.SlingHttpServletRequest;
import org.apache.sling.api.SlingHttpServletResponse;
import org.apache.sling.api.resource.Resource;
import org.apache.sling.api.resource.ResourceNotFoundException;
import org.apache.sling.api.resource.ResourceUtil;
import org.apache.sling.api.servlets.SlingSafeMethodsServlet;
/**
* The <code>PlainTextRendererServlet</code> renders the current resource in
* plain text on behalf of the
* {@link org.apache.sling.servlets.get.impl.DefaultGetServlet}.
*/
public class PlainTextRendererServlet extends SlingSafeMethodsServlet {
private static final long serialVersionUID = -5815904221043005085L;
public static final String EXT_TXT = "txt";
@Override
protected void doGet(SlingHttpServletRequest req,
SlingHttpServletResponse resp) throws ServletException, IOException {
final Resource r = req.getResource();
if (ResourceUtil.isNonExistingResource(r)) {
throw new ResourceNotFoundException("No data to render.");
}
/*
* TODO if(srd != null) { renderSyntheticResource(req, resp, srd);
* return; }
*/
resp.setContentType(req.getResponseContentType());
resp.setCharacterEncoding("UTF-8");
final PrintWriter pw = resp.getWriter();
@SuppressWarnings("unchecked")
final Map map = r.adaptTo(Map.class);
if ( map != null ) {
dump(pw, r, map);
} else if ( r.adaptTo(String.class) != null ) {
printPropertyValue(pw, ResourceUtil.getName(r), r.adaptTo(String.class), false);
} else if ( r.adaptTo(String[].class) != null ) {
printPropertyValue(pw, ResourceUtil.getName(r), r.adaptTo(String[].class), false);
} else {
resp.sendError(HttpServletResponse.SC_NO_CONTENT);
}
}
/** Render synthetic resource */
/*
* TODO private void renderSyntheticResource(SlingHttpServletRequest
* req,SlingHttpServletResponse resp,SyntheticResourceData data) throws
* IOException { resp.setContentType(responseContentType);
* resp.getOutputStream().write(data.toString().getBytes()); }
*/
@SuppressWarnings("unchecked")
protected void dump(PrintWriter pw, Resource r, Map map) {
pw.println("** Resource dumped by " + getClass().getSimpleName() + "**");
pw.println("Resource path:" + r.getPath());
pw.println("Resource metadata: " + r.getResourceMetadata());
pw.println("Resource type: " + r.getResourceType());
String resourceSuperType = ResourceUtil.findResourceSuperType(r);
if (resourceSuperType == null) {
resourceSuperType = "-";
}
pw.println("Resource super type: " + resourceSuperType);
pw.println("\n** Resource properties **");
final Iterator<Map.Entry> pi = map.entrySet().iterator();
while ( pi.hasNext() ) {
final Map.Entry p = pi.next();
printPropertyValue(pw, p.getKey().toString(), p.getValue(), true);
pw.println();
}
}
protected void printPropertyValue(PrintWriter pw, String name,
Object value,
boolean includeName) {
if (includeName) {
pw.print(name + ": ");
}
if ( value.getClass().isArray() ) {
final Object[] values = (Object[])value;
pw.print('[');
for (int i = 0; i < values.length; i++) {
if (i > 0) {
pw.print(", ");
}
pw.print(values[i].toString());
}
pw.print(']');
} else {
pw.print(value.toString());
}
}
}