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The free Java library for Asterisk PBX integration.
package org.asteriskjava.tools;
import org.asteriskjava.live.DefaultAsteriskServer;
import org.asteriskjava.manager.ManagerEventListener;
import org.asteriskjava.manager.event.*;
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;
/**
* 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 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;
}
}