// ========================================================================
// Copyright 2010 NEXCOM Systems
// ------------------------------------------------------------------------
// Licensed 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.cipango.console.printer;
import java.io.ByteArrayInputStream;
import java.io.InputStream;
import java.io.Writer;
import java.text.ParseException;
import java.util.Enumeration;
import java.util.Iterator;
import java.util.Properties;
import javax.management.MBeanServerConnection;
import org.cipango.console.ConsoleFilter;
import org.cipango.console.printer.generic.HtmlPrinter;
public class DarPrinter implements HtmlPrinter
{
private MBeanServerConnection _connection;
public DarPrinter(MBeanServerConnection connection)
{
_connection = connection;
}
public void print(Writer out) throws Exception
{
if (!_connection.isRegistered(ConsoleFilter.DAR))
{
out.write("Default application router is not running.");
return;
}
out.write("DAR configuration URI: <pre>" + _connection.getAttribute(ConsoleFilter.DAR, "configuration")
+ "</pre><br/>\n");
String defaultApplication = (String) _connection.getAttribute(ConsoleFilter.DAR, "defaultApplication");
if (defaultApplication != null)
{
out.write("Default application router is routing all requests to the application: <pre>");
out.write(defaultApplication);
out.write("</pre>\n");
}
else
{
printDarConfig(out);
}
}
private void printDarConfig(Writer out) throws ParseException, Exception
{
out.write("<div class=\"data\">\n<table class=\"main\">\n"
+ "<tr><th>Method</th><th>Application name</th><th>Identity</th><th>Routing region</th>" +
"<th>URI</th><th>Route modifier</th><th>State info</th></tr>\n");
String config = (String) _connection.getAttribute(ConsoleFilter.DAR, "config");
InputStream is = new ByteArrayInputStream(config.getBytes());
Properties properties = new Properties();
properties.load(is);
Enumeration<Object> e = properties.keys();
int index = 0;
while (e.hasMoreElements())
{
String method = e.nextElement().toString();
String infos = properties.get(method).toString().trim();
int li = infos.indexOf('(');
boolean first = true;
int count = 0;
StringBuilder sb = new StringBuilder();
while (li >= 0)
{
count++;
int ri = infos.indexOf(')', li);
if (ri < 0)
throw new ParseException(infos, li);
sb.append("<tr class=\"" + (index++ % 2 == 0 ? "even" : "odd") + "\">\n");
if (first)
{
sb.append("<td rowspan=\"${rowSpan}\">" + method + "</td>");
first = false;
}
String info = infos.substring(li + 1, ri);
li = infos.indexOf('(', ri);
InfoIterator it = new InfoIterator(info);
while (it.hasNext())
sb.append("<td>" + it.next() + "</td>");
sb.append("</tr>\n");
}
out.write(sb.toString().replace("${rowSpan}", String.valueOf(count)));
}
out.write("</table>\n</div>\n");
}
class InfoIterator implements Iterator<String>
{
private String _info;
private int i;
private String token;
public InfoIterator(String info)
{
_info = info;
}
public boolean hasNext()
{
if (token == null)
{
int li = _info.indexOf('"', i);
if (li != -1)
{
int ri = _info.indexOf('"', li + 1);
if (ri != -1)
{
token = _info.substring(li + 1, ri);
i = ri + 1;
}
}
}
return token != null;
}
public String next()
{
if (hasNext())
{
String s = token;
token = null;
return s;
} else
{
return null;
}
}
public void remove()
{
throw new UnsupportedOperationException();
}
}
}