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package com.sun.grizzly.cometd.bayeux;
import java.lang.reflect.Array;
import java.util.HashMap;
import java.util.Map;
/**
* This class unmarshal a JSON message into a Java Object.
* @author Jeanfrancois Arcand
*/
public class VerbUtils {
private final static String META = "/meta";
private final static String HANDSHAKE = "/handshake";
private final static String CONNECT = "/connect";
private final static String DISCONNECT = "/disconnect";
private final static String RECONNECT = "/reconnect";
private final static String SUBSCRIBE = "/subscribe";
private final static String UNSUBSCRIBE = "/unsubscribe";
private final static String STATUS = "/status";
private final static String PING = "/ping";
private final static String DATA = "/data";
public VerbUtils() {
}
public static Verb parse(Object verb){
if (verb.getClass().isArray()){
int length = Array.getLength(verb);
for (int i=0; i < length; i++){
return parseMap((Map)Array.get(verb,i));
}
}
throw new RuntimeException("Wrong type");
}
protected static Verb parseMap(Map map){
String channel = (String)map.get("channel");
if (!channel.startsWith(META)){
return newData(map);
}
VerbBase vb = null;
if (channel.indexOf(HANDSHAKE) != -1){
vb = newHandshake(map);
} else if (channel.indexOf(CONNECT) != -1){
vb = newConnect(map);
} else if (channel.indexOf(DISCONNECT) != -1){
vb = newDisconnect(map);
} else if (channel.indexOf(RECONNECT) != -1){
vb = newReconnect(map);
} else if (channel.indexOf(SUBSCRIBE) != -1){
vb = newSubscribe(map);
} else if (channel.indexOf(UNSUBSCRIBE) != -1){
vb = newUnsubscribe(map);
} else if (channel.indexOf(PING) != -1){
vb = newPing(map);
} else if (channel.indexOf(STATUS) != -1){
vb = newStatus(map);
}
configureExt(vb,map);
return vb;
}
private final static Handshake newHandshake(Map map){
Handshake handshake = new Handshake();
handshake.setAuthScheme((String)map.get("authScheme"));
handshake.setAuthUser((String)map.get("authUser"));
handshake.setAuthToken((String)map.get("authToken"));
handshake.setChannel((String)map.get("channel"));
handshake.setVersion(String.valueOf((Double)map.get("version")));
handshake.setMinimumVersion(String.valueOf((Double)map.get("minimumVersion")));
handshake.setAdvice(new Advice());
return handshake;
}
private final static Connect newConnect(Map map){
Connect connect = new Connect();
connect.setAuthToken((String)map.get("authToken"));
connect.setChannel((String)map.get("channel"));
connect.setClientId((String)map.get("clientId"));
connect.setConnectionType((String)map.get("connectionType"));
return connect;
}
private final static Disconnect newDisconnect(Map map){
Disconnect disconnect = new Disconnect();
disconnect.setAuthToken((String)map.get("authToken"));
disconnect.setChannel((String)map.get("channel"));
disconnect.setClientId((String)map.get("clientId"));
disconnect.setConnectionType((String)map.get("connectionType"));
return disconnect;
}
private final static Reconnect newReconnect(Map map){
Reconnect reconnect = new Reconnect();
reconnect.setAuthToken((String)map.get("authToken"));
reconnect.setChannel((String)map.get("channel"));
reconnect.setClientId((String)map.get("clientId"));
reconnect.setConnectionType((String)map.get("connectionType"));
return reconnect;
}
private final static Data newData(Map map){
Data data = new Data();
data.setChannel((String)map.get("channel"));
data.setClientId((String)map.get("clientId"));
data.setData((HashMap)map.get("data"));
return data;
}
private final static Subscribe newSubscribe(Map map){
Subscribe subscribe = new Subscribe();
subscribe.setChannel((String)map.get("channel"));
subscribe.setAuthToken((String)map.get("authToken"));
subscribe.setSubscription((String)map.get("subscription"));
subscribe.setClientId((String)map.get("clientId"));
return subscribe;
}
private final static Unsubscribe newUnsubscribe(Map map){
Unsubscribe unsubscribe = new Unsubscribe();
unsubscribe.setChannel((String)map.get("channel"));
unsubscribe.setAuthToken((String)map.get("authToken"));
unsubscribe.setSubscription((String)map.get("subscription"));
unsubscribe.setClientId((String)map.get("clientId"));
return unsubscribe;
}
private final static Ping newPing(Map map){
Ping ping = new Ping();
ping.setChannel((String)map.get("channel"));
return ping;
}
private final static Status newStatus(Map map){
Status status = new Status();
status.setChannel((String)map.get("channel"));
return status;
}
private static void configureExt(VerbBase vb, Map map){
Map extMap = (Map)map.get("ext");
if (extMap == null) return;
Ext ext = new Ext();
ext.setExtensionMap(extMap);
vb.setExt(ext);
}
}
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