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package org.jvnet.glassfish.comms.admin.clbadmin.reader.impl;
import com.sun.enterprise.admin.util.JMXConnectorConfig;
import com.sun.enterprise.config.ConfigContext;
import com.sun.enterprise.config.ConfigException;
import com.sun.enterprise.config.serverbeans.Config;
import com.sun.enterprise.config.serverbeans.HttpListener;
import com.sun.enterprise.config.serverbeans.HttpService;
import com.sun.enterprise.config.serverbeans.SipListener;
import com.sun.enterprise.config.serverbeans.SipService;
import com.sun.enterprise.config.serverbeans.PropertyResolver;
import com.sun.enterprise.config.serverbeans.ServerHelper;
import com.sun.enterprise.config.serverbeans.ServerHelper;
import com.sun.enterprise.config.serverbeans.ServerRef;
import com.sun.enterprise.util.i18n.StringManager;
import java.net.InetAddress;
import java.net.UnknownHostException;
import org.jvnet.glassfish.comms.admin.clbadmin.reader.api.InstanceReader;
import org.jvnet.glassfish.comms.admin.clbadmin.reader.api.LbReaderException;
import org.jvnet.glassfish.comms.admin.clbadmin.transform.InstanceVisitor;
import org.jvnet.glassfish.comms.admin.clbadmin.transform.Visitor;
/**
* Provides instance information relavant to Load balancer tier.
*
* @author Vijaya Gadhamsetty
*/
public class InstanceReaderImpl implements InstanceReader {
private static final StringManager _localStrMgr = StringManager.getManager(InstanceReaderImpl.class);
// --- PRIVATE VARS -------
ConfigContext _configCtx = null;
ServerRef _serverRef = null;
final static private String HTTP_PROTO = "http://";
final static private String HTTPS_PROTO = "https://";
final static private String SIP_PROTO = "sip://";
final static private String SIPS_PROTO = "sips://";
final static private String SECURE_TRANSPORT = "tls";
/**
* Constructor
*/
public InstanceReaderImpl(ConfigContext ctx, ServerRef sRef) {
if ((ctx == null) || (sRef == null)) {
String msg = _localStrMgr.getString("ConfigBeanAndNameNull");
throw new IllegalArgumentException(msg);
}
_configCtx = ctx;
_serverRef = sRef;
}
/**
* Return server instance's name.
*
* @return String instance' name
*/
public String getName() throws LbReaderException {
return _serverRef.getRef();
}
/**
* Returns if the server is enabled in the load balancer or not.
*
* @return boolean true if enabled in LB; false if disabled
*/
public boolean getLbEnabled() throws LbReaderException {
return _serverRef.isLbEnabled();
}
/**
* This is used in quicescing. Timeouts after this interval and disables the
* instance in the load balancer.
*
* @return String Disable time out in minutes
*/
public String getDisableTimeoutInMinutes() throws LbReaderException {
return _serverRef.getDisableTimeoutInMinutes();
}
/**
* Enlists both http and https listeners of this server instance
* It will be form "http:<hostname>:<port> https:<hostname>:<port>"
*
* @return String Listener(s) info.
*/
public String getListeners() throws LbReaderException {
String listenerStr = "";
String sName = _serverRef.getRef();
Config c = null;
try {
c = ServerHelper.getConfigForServer(_configCtx, sName);
} catch (ConfigException ce) {
String msg = _localStrMgr.getString("ConfigNotFound", sName);
throw new LbReaderException(msg, ce);
}
// http-listeners
HttpService httpSvc = c.getHttpService();
HttpListener[] lstnrs = httpSvc.getHttpListener();
for (int i = 0; i < lstnrs.length; i++) {
String hostName = resolveAddress(lstnrs[i].getAddress(), sName, c);
if (lstnrs[i].isEnabled() && !(lstnrs[i].getType().equals("external"))) {
if (lstnrs[i].isSecurityEnabled())
listenerStr += HTTPS_PROTO;
else
listenerStr += HTTP_PROTO;
// XXX actual hostname
listenerStr += (hostName + ":");
// resolve the port name
listenerStr += resolvePort(lstnrs[i].getPort());
// space between listener names
listenerStr += " ";
}
}
// sip-listeners
SipService sipSvc = c.getSipService();
SipListener[] sipListeners = sipSvc.getSipListener();
for (int i = 0; i < sipListeners.length; i++) {
String hostName = resolveAddress(sipListeners[i].getAddress(), sName, c);
if (sipListeners[i].isEnabled() && !(sipListeners[i].getType().equals("external"))) {
if (sipListeners[i].getTransport().equals(SECURE_TRANSPORT))
listenerStr += SIPS_PROTO;
else
listenerStr += SIP_PROTO;
listenerStr += (hostName + ":");
listenerStr += resolvePort(sipListeners[i].getPort());
listenerStr += " ";
}
}
return listenerStr.trim();
}
private String resolveAddress(String hostName, String sName, Config c) throws LbReaderException {
InetAddress address = null;
try {
// If it is system variable, resolve it
if ((hostName != null) && (hostName.length() > 1) &&
(hostName.charAt(0) == '$') && (hostName.charAt(1) == '{') &&
(hostName.charAt(hostName.length() - 1) == '}')) {
String hostVar = hostName.substring(2, hostName.length() - 1);
// resolve hostName since it is a token from system-property
PropertyResolver propResolver = null;
try {
propResolver = new PropertyResolver(_configCtx, _serverRef.getRef());
} catch (ConfigException ce) {
// ignore this exception
}
if (propResolver != null) {
hostName = propResolver.getPropertyValue(hostVar);
}
}
else {
address = InetAddress.getByName(hostName);
if (address.isAnyLocalAddress())
hostName = getHostNameForServerInstance(_configCtx, sName);
}
} catch (UnknownHostException ue) {
// ignore it
}
return hostName;
}
private String resolvePort(String port) {
// If it is system variable, resolve it
if ((port != null) && (port.length() > 1) &&
(port.charAt(0) == '$') && (port.charAt(1) == '{') &&
(port.charAt(port.length() - 1) == '}')) {
String portVar = port.substring(2, port.length() - 1);
String sVar = null;
PropertyResolver propResolver = null;
try {
propResolver = new PropertyResolver(_configCtx, _serverRef.getRef());
} catch (ConfigException ce) {
// ignore this exception
}
if (propResolver != null) {
sVar = propResolver.getPropertyValue(portVar);
}
if (sVar != null) {
return sVar;
} else {
return port;
}
} else {
return port;
}
}
// --- VISITOR IMPLEMENTATION ---
public void accept(Visitor v) {
InstanceVisitor iv = (InstanceVisitor) v;
iv.visit(this);
}
private String getHostNameForServerInstance(ConfigContext ctx,
String serverName) throws LbReaderException {
try {
JMXConnectorConfig info = ServerHelper.getJMXConnectorInfo(ctx,
serverName);
String host = info.getHost();
return host;
} catch (Exception e) {
String msg = _localStrMgr.getString("GetHostNameFailed");
throw new LbReaderException(msg, e);
}
}
}