/*
* 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.myfaces.trinidaddemo.support.jsf;
import org.apache.myfaces.trinidadinternal.renderkit.core.xhtml.OutputFormattedRenderer;
import org.apache.myfaces.trinidad.bean.FacesBean;
import org.apache.myfaces.trinidad.context.RenderingContext;
import org.apache.myfaces.trinidaddemo.support.util.HighlightXhtmlSource;
import org.apache.myfaces.trinidaddemo.support.util.HighlightJavaSource;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;
import javax.faces.component.UIComponent;
import javax.servlet.ServletContext;
import com.uwyn.jhighlight.renderer.Renderer;
import java.io.IOException;
import java.io.BufferedInputStream;
import java.io.InputStream;
import java.io.FileInputStream;
/**
*
*/
public class OutputSourceRenderer extends OutputFormattedRenderer {
@Override
protected void encodeAll(FacesContext context, RenderingContext arc, UIComponent comp, FacesBean bean) throws IOException {
if (canSkipRendering(context, arc, comp)) {
return;
}
String path = (String)getValue(bean);
String sourceType = path.substring(path.lastIndexOf('.') + 1, path.length());
Renderer hlight;
if (sourceType.equals("xhtml")) {
hlight = new HighlightXhtmlSource();
}
else if (sourceType.equals("java")) {
hlight = new HighlightJavaSource();
}
else {
hlight = null;
}
ResponseWriter rw = context.getResponseWriter();
rw.startElement("span", comp);
renderId(context, comp);
renderAllAttributes(context, arc, bean);
renderSourceHighlighted(context, (OutputSource)comp, bean, hlight);
rw.endElement("span");
}
/**
* @param context
* @param outputSource
* @param bean
* @param hlight
* @throws IOException
*/
protected void renderSourceHighlighted(FacesContext context, OutputSource outputSource, FacesBean bean, Renderer hlight) throws IOException {
String sourceContent = readSource(context, outputSource, bean);
ResponseWriter rw = context.getResponseWriter();
rw.write("<span class=\"line_counter\">");
for(int i=0;i<sourceContent.split("\n").length;i++)
rw.write("<span>"+(i+1)+"</span><br/>");
rw.write("</span><span class=\"code_body_wrap\"><span class=\"code_body\">");
rw.write(hlight.highlight(null, sourceContent, "UTF-8", true));
rw.write("</span></span>");
}
/**
* @param context
* @param outputSource
* @param bean
* @return
*/
protected String readSource(FacesContext context, OutputSource outputSource, FacesBean bean) {
String path = (String)getValue(bean);
String pathPrefix = outputSource.getPathPrefix();
if (pathPrefix == null) {
pathPrefix = "";
}
String realPath = ((ServletContext)context.getExternalContext().getContext()).getRealPath(pathPrefix + path);
String source = "";
InputStream in = null;
try {
in = new BufferedInputStream(new FileInputStream(realPath));
int ch;
while ((ch = in.read()) !=-1) {
source += ((char)ch);
}
}
catch (IOException e) {
e.printStackTrace();
}
catch (Exception e) {
e.printStackTrace();
}
finally {
if (in != null)
try {
in.close();
}
catch (IOException e) {
e.printStackTrace();
}
}
return source;
}
}