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/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.cxf.transport.http_jetty;
import java.io.IOException;
import java.net.URL;
import java.security.GeneralSecurityException;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.annotation.PostConstruct;
import javax.annotation.Resource;
import javax.servlet.ServletContext;
import org.apache.cxf.Bus;
import org.apache.cxf.common.i18n.Message;
import org.apache.cxf.common.logging.LogUtils;
import org.apache.cxf.configuration.jsse.TLSServerParameters;
import org.apache.cxf.interceptor.Fault;
import org.apache.cxf.transport.HttpUriMapper;
import org.apache.cxf.transport.https_jetty.JettySslConnectorFactory;
import org.mortbay.jetty.AbstractConnector;
import org.mortbay.jetty.Connector;
import org.mortbay.jetty.Handler;
import org.mortbay.jetty.Server;
import org.mortbay.jetty.handler.ContextHandler;
import org.mortbay.jetty.handler.ContextHandlerCollection;
import org.mortbay.jetty.handler.DefaultHandler;
import org.mortbay.jetty.handler.HandlerList;
import org.mortbay.jetty.nio.SelectChannelConnector;
import org.mortbay.jetty.security.SslSocketConnector;
import org.mortbay.jetty.servlet.HashSessionIdManager;
import org.mortbay.jetty.servlet.HashSessionManager;
import org.mortbay.jetty.servlet.SessionHandler;
import org.mortbay.thread.QueuedThreadPool;
/**
* This class is the Jetty HTTP Server Engine that is configured to
* work off of a designated port. The port will be enabled for
* "http" or "https" depending upon its successful configuration.
*/
public class JettyHTTPServerEngine
implements ServerEngine {
private static final long serialVersionUID = 1L;
private static final Logger LOG =
LogUtils.getL7dLogger(JettyHTTPServerEngine.class);
/**
* The bus.
*/
protected Bus bus;
/**
* This is the Jetty HTTP Server Engine Factory. This factory caches some
* engines based on port numbers.
*/
protected JettyHTTPServerEngineFactory factory;
/**
* This is the network port for which this engine is allocated.
*/
private int port;
/**
* This field holds the protocol for which this engine is
* enabled, i.e. "http" or "https".
*/
private String protocol = "http";
private Boolean isSessionSupport = false;
private Boolean isReuseAddress = true;
private Boolean continuationsEnabled = true;
private int servantCount;
private Server server;
private Connector connector;
private List handlers;
private JettyConnectorFactory connectorFactory;
private ContextHandlerCollection contexts;
/**
* This field holds the TLS ServerParameters that are programatically
* configured. The tlsServerParamers (due to JAXB) holds the struct
* placed by SpringConfig.
*/
private TLSServerParameters tlsServerParameters;
/**
* This field hold the threading parameters for this particular engine.
*/
private ThreadingParameters threadingParameters;
/**
* This boolean signfies that SpringConfig is over. finalizeConfig
* has been called.
*/
private boolean configFinalized;
/**
* This constructor is called by the JettyHTTPServerEngineFactory.
*/
public JettyHTTPServerEngine(
JettyHTTPServerEngineFactory fac,
Bus bus,
int port) {
this.bus = bus;
this.factory = fac;
this.port = port;
}
public JettyHTTPServerEngine() {
}
public void setJettyHTTPServerEngineFactory(JettyHTTPServerEngineFactory fac) {
factory = fac;
}
public void setPort(int p) {
port = p;
}
public void setContinuationsEnabled(boolean enabled) {
continuationsEnabled = enabled;
}
public boolean getContinuationsEnabled() {
return continuationsEnabled;
}
/**
* The bus.
*/
@Resource(name = "cxf")
public void setBus(Bus b) {
bus = b;
}
public Bus getBus() {
return bus;
}
/**
* Returns the protocol "http" or "https" for which this engine
* was configured.
*/
public String getProtocol() {
return protocol;
}
/**
* Returns the port number for which this server engine was configured.
* @return
*/
public int getPort() {
return port;
}
/**
* This method will shut down the server engine and
* remove it from the factory's cache.
*/
public void shutdown() {
if (shouldDestroyPort()) {
if (factory != null && servantCount == 0) {
factory.destroyForPort(port);
} else {
LOG.log(Level.WARNING, "FAILED_TO_SHUTDOWN_ENGINE_MSG", port);
}
}
}
private boolean shouldDestroyPort() {
//if we shutdown the port, on SOME OS's/JVM's, if a client
//in the same jvm had been talking to it at some point and keep alives
//are on, then the port is held open for about 60 seconds
//afterwards and if we restart, connections will then
//get sent into the old stuff where there are
//no longer any servant registered. They pretty much just hang.
//this is most often seen in our unit/system tests that
//test things in the same VM.
String s = System.getProperty("org.apache.cxf.transports.http_jetty.DontClosePort");
return !Boolean.valueOf(s);
}
/**
* get the jetty server instance
* @return
*/
public Server getServer() {
return server;
}
/**
* Set the jetty server instance
* @param s
*/
public void setServer(Server s) {
server = s;
}
/**
* set the jetty server's connector
* @param c
*/
public void setConnector(Connector c) {
connector = c;
}
/**
* set the jetty server's handlers
* @param h
*/
public void setHandlers(List h) {
handlers = h;
}
public void setSessionSupport(boolean support) {
isSessionSupport = support;
}
public boolean isSessionSupport() {
return isSessionSupport;
}
public List getHandlers() {
return handlers;
}
public Connector getConnector() {
return connector;
}
public boolean isReuseAddress() {
return isReuseAddress;
}
public void setReuseAddress(boolean reuse) {
isReuseAddress = reuse;
}
/**
* Register a servant.
*
* @param url the URL associated with the servant
* @param handler notified on incoming HTTP requests
*/
@SuppressWarnings("deprecation")
public synchronized void addServant(URL url, JettyHTTPHandler handler) {
if (server == null) {
DefaultHandler defaultHandler = null;
// create a new jetty server instance if there is no server there
server = new Server();
if (connector == null) {
connector = connectorFactory.createConnector(port);
}
server.addConnector(connector);
if (handlers != null && handlers.size() > 0) {
HandlerList handlerList = new HandlerList();
for (Handler h : handlers) {
// filting the jetty default handler
// which should not be added at this point
if (h instanceof DefaultHandler) {
defaultHandler = (DefaultHandler) h;
} else {
handlerList.addHandler(h);
}
}
server.addHandler(handlerList);
}
contexts = new ContextHandlerCollection();
server.addHandler(contexts);
if (defaultHandler != null) {
server.addHandler(defaultHandler);
}
try {
setReuseAddress(connector);
server.start();
AbstractConnector aconn = (AbstractConnector) connector;
if (isSetThreadingParameters()) {
if (aconn.getThreadPool() instanceof org.mortbay.thread.BoundedThreadPool) {
org.mortbay.thread.BoundedThreadPool pool
= (org.mortbay.thread.BoundedThreadPool)aconn.getThreadPool();
if (getThreadingParameters().isSetMinThreads()) {
pool.setMinThreads(getThreadingParameters().getMinThreads());
}
if (getThreadingParameters().isSetMaxThreads()) {
pool.setMaxThreads(getThreadingParameters().getMaxThreads());
}
} else if (aconn.getThreadPool() instanceof QueuedThreadPool) {
QueuedThreadPool pool = (QueuedThreadPool)aconn.getThreadPool();
if (getThreadingParameters().isSetMinThreads()) {
pool.setMinThreads(getThreadingParameters().getMinThreads());
}
if (getThreadingParameters().isSetMaxThreads()) {
pool.setMaxThreads(getThreadingParameters().getMaxThreads());
}
}
}
} catch (Exception e) {
LOG.log(Level.SEVERE, "START_UP_SERVER_FAILED_MSG", new Object[] {e.getMessage()});
//problem starting server
try {
server.stop();
server.destroy();
} catch (Exception ex) {
//ignore - probably wasn't fully started anyway
}
server = null;
throw new Fault(new Message("START_UP_SERVER_FAILED_MSG", LOG, e.getMessage()), e);
}
}
String contextName = HttpUriMapper.getContextName(url.getPath());
ContextHandler context = new ContextHandler();
context.setContextPath(contextName);
// bind the jetty http handler with the context handler
context.setHandler(handler);
if (isSessionSupport) {
HashSessionManager sessionManager = new HashSessionManager();
SessionHandler sessionHandler = new SessionHandler(sessionManager);
HashSessionIdManager idManager = new HashSessionIdManager();
sessionManager.setIdManager(idManager);
context.addHandler(sessionHandler);
}
contexts.addHandler(context);
ServletContext sc = context.getServletContext();
handler.setServletContext(sc);
final String smap = HttpUriMapper.getResourceBase(url.getPath());
handler.setName(smap);
if (contexts.isStarted()) {
try {
context.start();
} catch (Exception ex) {
LOG.log(Level.WARNING, "ADD_HANDLER_FAILED_MSG", new Object[] {ex.getMessage()});
}
}
++servantCount;
}
private void setReuseAddress(Connector conn) throws IOException {
if (conn instanceof AbstractConnector) {
((AbstractConnector)conn).setReuseAddress(isReuseAddress());
} else {
LOG.log(Level.INFO, "UNKNOWN_CONNECTOR_MSG", new Object[] {conn});
}
}
/**
* Remove a previously registered servant.
*
* @param url the URL the servant was registered against.
*/
public synchronized void removeServant(URL url) {
final String contextName = HttpUriMapper.getContextName(url.getPath());
final String smap = HttpUriMapper.getResourceBase(url.getPath());
boolean found = false;
if (server != null && server.isRunning()) {
for (Handler handler : contexts.getChildHandlersByClass(ContextHandler.class)) {
ContextHandler contextHandler = null;
if (handler instanceof ContextHandler) {
contextHandler = (ContextHandler) handler;
Handler jh = contextHandler.getHandler();
if (jh instanceof JettyHTTPHandler
&& contextName.equals(contextHandler.getContextPath())
&& ((JettyHTTPHandler)jh).getName().equals(smap)) {
try {
contexts.removeHandler(handler);
handler.stop();
handler.destroy();
} catch (Exception ex) {
LOG.log(Level.WARNING, "REMOVE_HANDLER_FAILED_MSG",
new Object[] {ex.getMessage()});
}
found = true;
break;
}
}
}
}
if (!found) {
LOG.log(Level.WARNING, "CAN_NOT_FIND_HANDLER_MSG", new Object[]{url});
}
--servantCount;
}
/**
* Get a registered servant.
*
* @param url the associated URL
* @return the HttpHandler if registered
*/
public synchronized Handler getServant(URL url) {
String contextName = HttpUriMapper.getContextName(url.getPath());
//final String smap = HttpUriMapper.getResourceBase(url.getPath());
Handler ret = null;
// After a stop(), the server is null, and therefore this
// operation should return null.
if (server != null) {
for (Handler handler : server.getChildHandlersByClass(ContextHandler.class)) {
ContextHandler contextHandler = null;
if (handler instanceof ContextHandler) {
contextHandler = (ContextHandler) handler;
if (contextName.equals(contextHandler.getContextPath())) {
ret = contextHandler.getHandler();
break;
}
}
}
}
return ret;
}
/**
* Get a registered context handler.
*
* @param url the associated URL
* @return the HttpHandler if registered
*/
public synchronized ContextHandler getContextHandler(URL url) {
String contextName = HttpUriMapper.getContextName(url.getPath());
ContextHandler ret = null;
// After a stop(), the server is null, and therefore this
// operation should return null.
if (server != null) {
for (Handler handler : server.getChildHandlersByClass(ContextHandler.class)) {
ContextHandler contextHandler = null;
if (handler instanceof ContextHandler) {
contextHandler = (ContextHandler) handler;
if (contextName.equals(contextHandler.getContextPath())) {
ret = contextHandler;
break;
}
}
}
}
return ret;
}
protected void retrieveListenerFactory() {
if (tlsServerParameters != null) {
if (null != connector && !(connector instanceof SslSocketConnector)) {
LOG.warning("Connector " + connector + " for JettyServerEngine Port "
+ port + " does not support SSL connections.");
return;
}
connectorFactory =
getHTTPSConnectorFactory(tlsServerParameters);
protocol = "https";
} else {
if (connector instanceof SslSocketConnector) {
throw new RuntimeException("Connector " + connector + " for JettyServerEngine Port "
+ port + " does not support non-SSL connections.");
}
connectorFactory = getHTTPConnectorFactory();
protocol = "http";
}
LOG.fine("Configured port " + port + " for \"" + protocol + "\".");
}
/**
* This method creates a connector factory. If there are TLS parameters
* then it creates a TLS enabled one.
*/
protected JettyConnectorFactory getHTTPConnectorFactory() {
return new JettyConnectorFactory() {
public AbstractConnector createConnector(int porto) {
// now we just use the SelectChannelConnector as the default connector
SelectChannelConnector result =
new SelectChannelConnector();
// Regardless the port has to equal the one
// we are configured for.
assert porto == port;
result.setPort(porto);
return result;
}
};
}
/**
* This method creates a connector factory enabled with the JSSE
*/
protected JettyConnectorFactory getHTTPSConnectorFactory(
TLSServerParameters tlsParams
) {
return new JettySslConnectorFactory(tlsParams);
}
/**
* This method is called after configure on this object.
*/
@PostConstruct
public void finalizeConfig()
throws GeneralSecurityException,
IOException {
retrieveEngineFactory();
retrieveListenerFactory();
checkConnectorPort();
this.configFinalized = true;
}
protected void retrieveEngineFactory() {
if (null != bus && null == factory) {
factory = bus.getExtension(JettyHTTPServerEngineFactory.class);
}
}
private void checkConnectorPort() throws IOException {
if (null != connector && port != connector.getPort()) {
throw new IOException("Error: Connector port " + connector.getPort() + " does not match"
+ " with the server engine port " + port);
}
}
/**
* This method is called by the ServerEngine Factory to destroy the
* listener.
*
*/
protected void stop() throws Exception {
if (server != null) {
try {
connector.stop();
connector.close();
} finally {
server.stop();
server.destroy();
server = null;
}
}
}
/**
* This method is used to programmatically set the TLSServerParameters.
* This method may only be called by the factory.
* @throws IOException
*/
public void setTlsServerParameters(TLSServerParameters params) throws IOException {
tlsServerParameters = params;
if (this.configFinalized) {
this.retrieveListenerFactory();
}
}
/**
* This method returns the programmatically set TLSServerParameters, not
* the TLSServerParametersType, which is the JAXB generated type used
* in SpringConfiguration.
* @return
*/
public TLSServerParameters getTlsServerParameters() {
return tlsServerParameters;
}
/**
* This method sets the threading parameters for this particular
* server engine.
* This method may only be called by the factory.
*/
public void setThreadingParameters(ThreadingParameters params) {
threadingParameters = params;
}
/**
* This method returns whether the threading parameters are set.
*/
public boolean isSetThreadingParameters() {
return threadingParameters != null;
}
/**
* This method returns the threading parameters that have been set.
* This method may return null, if the threading parameters have not
* been set.
*/
public ThreadingParameters getThreadingParameters() {
return threadingParameters;
}
}