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The free Java library for Asterisk PBX integration.
package org.asteriskjava.tools;
import java.beans.BeanInfo;
import java.beans.Introspector;
import java.beans.PropertyDescriptor;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.nio.charset.StandardCharsets;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.asteriskjava.live.DefaultAsteriskServer;
import org.asteriskjava.manager.ManagerEventListener;
import org.asteriskjava.manager.event.AbstractParkedCallEvent;
import org.asteriskjava.manager.event.AntennaLevelEvent;
import org.asteriskjava.manager.event.BridgeEvent;
import org.asteriskjava.manager.event.DialEvent;
import org.asteriskjava.manager.event.HangupEvent;
import org.asteriskjava.manager.event.HoldEvent;
import org.asteriskjava.manager.event.ManagerEvent;
import org.asteriskjava.manager.event.NewChannelEvent;
import org.asteriskjava.manager.event.NewExtenEvent;
import org.asteriskjava.manager.event.NewStateEvent;
import org.asteriskjava.manager.event.PausedEvent;
import org.asteriskjava.manager.event.RenameEvent;
import org.asteriskjava.manager.event.UnpausedEvent;
/**
* A diagnostic tool that creates an HTML file showing the state changing events
* received from Asterisk on the Manager API.
*
* The following events are shown:
*
* - NewChannel
* - NewState
* - Rename
* - Dial
* - Bridge (Link and Unlink)
* - Hangup
*
* Usage: java org.asteriskjava.tools.HtmlEventTracer host username password
*
* @version $Id$
*/
public class HtmlEventTracer implements ManagerEventListener
{
private String filename = "trace.html";
private PrintWriter writer;
private final List uniqueIds;
private final List events;
private final Map, String> colors;
public HtmlEventTracer()
{
uniqueIds = new ArrayList<>();
events = new ArrayList<>();
colors = new HashMap<>();
colors.put(NewChannelEvent.class, "#7cd300"); // green
colors.put(NewStateEvent.class, "#a4b6c8");
colors.put(NewExtenEvent.class, "#efefef"); // grey
colors.put(RenameEvent.class, "#ddeeff"); // light blue
colors.put(DialEvent.class, "#feec30"); // yellow
colors.put(BridgeEvent.class, "#fff8ae"); // light yellow
colors.put(HangupEvent.class, "#ff6c17"); // orange
try
{
writer = new PrintWriter(new OutputStreamWriter(new FileOutputStream(filename), StandardCharsets.UTF_8));
}
catch (IOException e)
{
e.printStackTrace();
}
}
public static void main(String[] args) throws Exception
{
if (args.length != 3)
{
System.err.println("Usage: java org.asteriskjava.tools.HtmlEventTracer host username password");
System.exit(1);
}
final HtmlEventTracer tracer;
final DefaultAsteriskServer server;
tracer = new HtmlEventTracer();
server = new DefaultAsteriskServer(args[0], args[1], args[2]);
server.initialize();
server.getManagerConnection().addEventListener(tracer);
System.err.println("Event tracer successfully started. Press Ctrl-C to write trace file and exit.");
Runtime.getRuntime().addShutdownHook(new Thread()
{
@Override
public void run()
{
tracer.write();
server.shutdown();
}
});
while (true)
{
Thread.sleep(1000);
}
}
public void onManagerEvent(ManagerEvent event)
{
events.add(event);
System.out.println("> " + event);
for (String property : new String[]{"uniqueId", "uniqueId1", "uniqueId2", "srcUniqueId", "destUniqueId"})
{
String uniqueId;
uniqueId = getProperty(event, property);
if (uniqueId != null && !uniqueIds.contains(uniqueId))
{
uniqueIds.add(uniqueId);
}
}
}
public void write()
{
writer.append(" ");
for (String uniqueId : uniqueIds)
{
writer.append("");
writer.append(uniqueId.substring(0, uniqueId.lastIndexOf('.') + 1));
writer.append("");
writer.append(uniqueId.substring(uniqueId.lastIndexOf('.') + 1, uniqueId.length()));
writer.append(" ");
}
writer.append("");
line.append(event.getClass().getSimpleName());
line.append("
");
line.append(event.getDateReceived());
line.append(" ");
for (String uniqueId : uniqueIds)
{
String text;
text = getText(uniqueId, event);
if (text == null)
{
line.append(" ");
}
else
{
String color = getColor(event.getClass());
line.append("").append(text).append(" ");
print = true;
}
}
line.append("
");
writer.close();
System.err.println("Trace file successfully written to " + filename + ".");
}
private String getColor(Class< ? extends ManagerEvent> clazz)
{
for (Map.Entry, String> entry : colors.entrySet())
{
if (entry.getKey().isAssignableFrom(clazz))
{
return entry.getValue();
}
}
return "#ffffff";
}
protected String getProperty(Object obj, String property)
{
try
{
BeanInfo beanInfo = Introspector.getBeanInfo(obj.getClass());
for (PropertyDescriptor propertyDescriptor : beanInfo.getPropertyDescriptors())
{
if (!propertyDescriptor.getName().equals(property))
{
continue;
}
final Object o = propertyDescriptor.getReadMethod().invoke(obj);
return o != null ? o.toString() : null;
}
}
catch (Exception e)
{
System.err.println("Unable to read property '" + property + "' from object " + obj + ": " + e.getMessage());
return null;
}
return null;
}
protected String getText(String uniqueId, ManagerEvent event)
{
String format = null;
String[] properties = null;
if (uniqueId.equals(getProperty(event, "uniqueId")))
{
if (event instanceof NewChannelEvent)
{
format = "%s
%s";
properties = new String[]{"channel", "state"};
}
else if (event instanceof NewStateEvent)
{
format = "%s
%s";
properties = new String[]{"channel", "state"};
}
else if (event instanceof NewExtenEvent)
{
format = "%s,%s,%s
%s(%s)";
properties = new String[]{"context", "extension", "priority", "application", "appData"};
}
else if (event instanceof RenameEvent)
{
format = "old: %s
new: %s";
properties = new String[]{"oldname", "newname"};
}
else if (event instanceof HoldEvent)
{
format = "%s";
properties = new String[]{"status"};
}
else if (event instanceof AbstractParkedCallEvent)
{
format = "exten: %s
from: %s";
properties = new String[]{"exten", "from"};
}
else if (event instanceof HangupEvent)
{
format = "%s
%s (%s)";
properties = new String[]{"channel", "cause", "causeTxt"};
}
else if (event instanceof AntennaLevelEvent)
{
format = "%s";
properties = new String[]{"signal"};
}
else if (event instanceof PausedEvent)
{
format = "(%s) %s";
properties = new String[]{"header", "extension"};
}
else if (event instanceof UnpausedEvent)
{
format = "(%s) %s";
properties = new String[]{"header", "extension"};
}
}
if (event instanceof BridgeEvent)
{
if (uniqueId.equals(getProperty(event, "uniqueId1")))
{
format = "%s
%s
%s";
properties = new String[]{"uniqueId2", "channel2", "bridgeState"};
}
else if (uniqueId.equals(getProperty(event, "uniqueId2")))
{
format = "%s
%s
%s";
properties = new String[]{"uniqueId1", "channel1", "bridgeState"};
}
}
if (event instanceof DialEvent)
{
if (uniqueId.equals(getProperty(event, "srcUniqueId")))
{
format = "To: %s";
properties = new String[]{"destination"};
}
else if (uniqueId.equals(getProperty(event, "destUniqueId")))
{
format = "From: %s";
properties = new String[]{"src"};
}
}
if (format != null && properties != null)
{
String[] args = new String[properties.length];
for (int i = 0; i < properties.length; i++)
{
String value;
value = getProperty(event, properties[i]);
if (value == null)
{
args[i] = "";
}
else
{
value = value.replace("<", "<");
value = value.replace(">", ">");
args[i] = value;
}
}
return String.format(format, (Object[]) args);
}
return null;
}
}