/**
* 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.camel.component.jetty;
import java.net.URI;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.apache.camel.Endpoint;
import org.apache.camel.component.http.CamelServlet;
import org.apache.camel.component.http.HttpComponent;
import org.apache.camel.component.http.HttpConsumer;
import org.apache.camel.component.http.HttpEndpoint;
import org.apache.camel.util.CamelContextHelper;
import org.apache.camel.util.IntrospectionSupport;
import org.apache.camel.util.URISupport;
import org.apache.camel.util.UnsafeUriCharactersEncoder;
import org.apache.commons.httpclient.params.HttpClientParams;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.mortbay.jetty.Connector;
import org.mortbay.jetty.Handler;
import org.mortbay.jetty.Server;
import org.mortbay.jetty.handler.ContextHandlerCollection;
import org.mortbay.jetty.nio.SelectChannelConnector;
import org.mortbay.jetty.security.SslSocketConnector;
import org.mortbay.jetty.servlet.Context;
import org.mortbay.jetty.servlet.ServletHolder;
import org.mortbay.jetty.servlet.SessionHandler;
/**
* An HttpComponent which starts an embedded Jetty for to handle consuming from
* the http endpoints.
*
* @version $Revision: 792899 $
*/
public class JettyHttpComponent extends HttpComponent {
protected static final HashMap<String, ConnectorRef> CONNECTORS = new HashMap<String, ConnectorRef>();
private static final transient Log LOG = LogFactory.getLog(JettyHttpComponent.class);
private static final String JETTY_SSL_KEYSTORE = "jetty.ssl.keystore";
protected String sslKeyPassword;
protected String sslPassword;
protected String sslKeystore;
protected SslSocketConnector sslSocketConnector;
class ConnectorRef {
Server server;
Connector connector;
CamelServlet servlet;
int refCount;
public ConnectorRef(Server server, Connector connector, CamelServlet servlet) {
this.server = server;
this.connector = connector;
this.servlet = servlet;
increment();
}
public int increment() {
return ++refCount;
}
public int decrement() {
return --refCount;
}
}
@Override
protected Endpoint createEndpoint(String uri, String remaining, Map parameters) throws Exception {
uri = uri.startsWith("jetty:") ? remaining : uri;
HttpClientParams params = new HttpClientParams();
IntrospectionSupport.setProperties(params, parameters, "httpClient.");
// handlers
List<Handler> handlerList = new ArrayList<Handler>();
String handlers = getAndRemoveParameter(parameters, "handlers", String.class);
if (handlers != null) {
// remove any leading # for reference lookup as we know its a reference lookup
handlers = handlers.replaceAll("#", "");
// lookup each individual handler and add it to the list
for (String key : handlers.split(",")) {
handlerList.add(CamelContextHelper.mandatoryLookup(getCamelContext(), key, Handler.class));
}
}
// configure regular parameters
configureParameters(parameters);
// restructure uri to be based on the parameters left as we dont want to include the Camel internal options
URI httpUri = URISupport.createRemainingURI(new URI(UnsafeUriCharactersEncoder.encode(uri)), parameters);
uri = httpUri.toString();
JettyHttpEndpoint result = new JettyHttpEndpoint(this, uri, httpUri, params, getHttpConnectionManager(), httpClientConfigurer);
if (httpBinding != null) {
result.setBinding(httpBinding);
}
setEndpointHeaderFilterStrategy(result);
if (handlerList.size() > 0) {
result.setHandlers(handlerList);
}
setProperties(result, parameters);
return result;
}
/**
* Connects the URL specified on the endpoint to the specified processor.
*/
@Override
public void connect(HttpConsumer consumer) throws Exception {
// Make sure that there is a connector for the requested endpoint.
JettyHttpEndpoint endpoint = (JettyHttpEndpoint)consumer.getEndpoint();
String connectorKey = getConnectorKey(endpoint);
synchronized (CONNECTORS) {
ConnectorRef connectorRef = CONNECTORS.get(connectorKey);
if (connectorRef == null) {
Connector connector;
if ("https".equals(endpoint.getProtocol())) {
connector = getSslSocketConnector();
} else {
connector = new SelectChannelConnector();
}
connector.setPort(endpoint.getPort());
connector.setHost(endpoint.getHttpUri().getHost());
if ("localhost".equalsIgnoreCase(endpoint.getHttpUri().getHost())) {
LOG.warn("You use localhost interface! It means that no external connections will be available. Don't you want to use 0.0.0.0 instead (all network interfaces)?");
}
Server server = createServer();
server.addConnector(connector);
connectorRef = new ConnectorRef(server, connector, createServletForConnector(server, connector, endpoint.getHandlers()));
connector.start();
CONNECTORS.put(connectorKey, connectorRef);
} else {
// ref track the connector
connectorRef.increment();
}
// check the session support
if (endpoint.isSessionSupport()) {
enableSessionSupport(connectorRef.server);
}
connectorRef.servlet.connect(consumer);
}
}
private void enableSessionSupport(Server server) throws Exception {
Context context = (Context)server.getChildHandlerByClass(Context.class);
if (context.getSessionHandler() == null) {
SessionHandler sessionHandler = new SessionHandler();
context.setSessionHandler(sessionHandler);
if (context.isStarted()) {
// restart the context
context.stop();
context.start();
}
}
}
/**
* Disconnects the URL specified on the endpoint from the specified
* processor.
*/
@Override
public void disconnect(HttpConsumer consumer) throws Exception {
// If the connector is not needed anymore then stop it
HttpEndpoint endpoint = consumer.getEndpoint();
String connectorKey = getConnectorKey(endpoint);
synchronized (CONNECTORS) {
ConnectorRef connectorRef = CONNECTORS.get(connectorKey);
if (connectorRef != null) {
connectorRef.servlet.disconnect(consumer);
if (connectorRef.decrement() == 0) {
connectorRef.server.removeConnector(connectorRef.connector);
connectorRef.connector.stop();
connectorRef.server.stop();
CONNECTORS.remove(connectorKey);
}
}
}
}
private String getConnectorKey(HttpEndpoint endpoint) {
return endpoint.getProtocol() + ":" + endpoint.getHttpUri().getHost() + ":" + endpoint.getPort();
}
// Properties
// -------------------------------------------------------------------------
public String getSslKeyPassword() {
return sslKeyPassword;
}
public void setSslKeyPassword(String sslKeyPassword) {
this.sslKeyPassword = sslKeyPassword;
}
public String getSslPassword() {
return sslPassword;
}
public void setSslPassword(String sslPassword) {
this.sslPassword = sslPassword;
}
public void setKeystore(String sslKeystore) {
this.sslKeystore = sslKeystore;
}
public String getKeystore() {
return sslKeystore;
}
public synchronized SslSocketConnector getSslSocketConnector() {
if (sslSocketConnector == null) {
sslSocketConnector = new SslSocketConnector();
// with default null values, jetty ssl system properties
// and console will be read by jetty implementation
sslSocketConnector.setPassword(sslPassword);
sslSocketConnector.setKeyPassword(sslKeyPassword);
if (sslKeystore != null) {
sslSocketConnector.setKeystore(sslKeystore);
} else {
// try the keystore system property as a backup, jetty doesn't seem
// to read this property anymore
String keystoreProperty = System.getProperty(JETTY_SSL_KEYSTORE);
if (keystoreProperty != null) {
sslSocketConnector.setKeystore(keystoreProperty);
}
}
}
return sslSocketConnector;
}
public void setSslSocketConnector(SslSocketConnector connector) {
sslSocketConnector = connector;
}
protected CamelServlet createServletForConnector(Server server, Connector connector, List<Handler> handlers) throws Exception {
CamelServlet camelServlet = new CamelServlet(isMatchOnUriPrefix());
Context context = new Context(server, "/", Context.NO_SECURITY | Context.NO_SESSIONS);
context.setConnectorNames(new String[] {connector.getName()});
if (handlers != null) {
for (Handler handler : handlers) {
context.addHandler(handler);
}
}
ServletHolder holder = new ServletHolder();
holder.setServlet(camelServlet);
context.addServlet(holder, "/*");
connector.start();
context.start();
return camelServlet;
}
// Implementation methods
// -------------------------------------------------------------------------
protected Server createServer() throws Exception {
Server server = new Server();
ContextHandlerCollection collection = new ContextHandlerCollection();
collection.setServer(server);
server.addHandler(collection);
server.start();
return server;
}
}