/**
* 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.HashMap;
import java.util.List;
import java.util.Map;
import org.apache.camel.Endpoint;
import org.apache.camel.RuntimeCamelException;
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.CastUtils;
import org.apache.camel.util.IntrospectionSupport;
import org.apache.camel.util.URISupport;
import org.apache.camel.util.UnsafeUriCharactersEncoder;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.mortbay.component.LifeCycle;
import org.mortbay.jetty.Connector;
import org.mortbay.jetty.Handler;
import org.mortbay.jetty.Server;
import org.mortbay.jetty.client.Address;
import org.mortbay.jetty.client.HttpClient;
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;
import org.mortbay.thread.QueuedThreadPool;
import org.mortbay.thread.ThreadPool;
/**
* An HttpComponent which starts an embedded Jetty for to handle consuming from
* the http endpoints.
*
* @version $Revision: 890042 $
*/
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 Map<Integer, SslSocketConnector> sslSocketConnectors;
protected HttpClient httpClient;
protected ThreadPool httpClientThreadPool;
protected Integer httpClientMinThreads;
protected Integer httpClientMaxThreads;
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<String, Object> parameters) throws Exception {
uri = uri.startsWith("jetty:") ? remaining : uri;
List<Handler> handlerList = resolveAndRemoveReferenceListParameter(parameters, "handlers", Handler.class);
// configure regular parameters
configureParameters(parameters);
JettyHttpEndpoint result = new JettyHttpEndpoint(this, uri, null);
if (httpBinding != null) {
result.setBinding(httpBinding);
}
setEndpointHeaderFilterStrategy(result);
if (handlerList.size() > 0) {
result.setHandlers(handlerList);
}
setProperties(result, parameters);
// configure http client if we have url configuration for it
if (IntrospectionSupport.hasProperties(parameters, "httpClient.")) {
// configure Jetty http client
result.setClient(getHttpClient());
// set additional parameters on http client
IntrospectionSupport.setProperties(getHttpClient(), parameters, "httpClient.");
// validate that we could resolve all httpClient. parameters as this component is lenient
validateParameters(uri, parameters, "httpClient.");
}
// create the http uri after we have configured all the parameters on the camel objects
URI httpUri = URISupport.createRemainingURI(new URI(UnsafeUriCharactersEncoder.encode(uri)),
CastUtils.cast(parameters));
result.setHttpUri(httpUri);
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(endpoint.getPort());
} 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 SslSocketConnector getSslSocketConnector(int port) {
SslSocketConnector answer = null;
if (sslSocketConnectors != null) {
answer = sslSocketConnectors.get(port);
}
if (answer == null) {
answer = createSslSocketConnector();
} 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) {
answer.setKeystore(keystoreProperty);
}
}
return answer;
}
public SslSocketConnector createSslSocketConnector() {
SslSocketConnector answer = new SslSocketConnector();
// with default null values, jetty ssl system properties
// and console will be read by jetty implementation
answer.setPassword(sslPassword);
answer.setKeyPassword(sslKeyPassword);
if (sslKeystore != null) {
answer.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) {
answer.setKeystore(keystoreProperty);
}
}
return answer;
}
public void setSslSocketConnectors(Map <Integer, SslSocketConnector> connectors) {
sslSocketConnectors = connectors;
}
public synchronized HttpClient getHttpClient() {
if (httpClient == null) {
httpClient = new HttpClient();
httpClient.setConnectorType(HttpClient.CONNECTOR_SELECT_CHANNEL);
if (System.getProperty("http.proxyHost") != null && System.getProperty("http.proxyPort") != null) {
String host = System.getProperty("http.proxyHost");
int port = Integer.parseInt(System.getProperty("http.proxyPort"));
if (LOG.isDebugEnabled()) {
LOG.debug("Java System Property http.proxyHost and http.proxyPort detected. Using http proxy host: "
+ host + " port: " + port);
}
httpClient.setProxy(new Address(host, port));
}
// use QueueThreadPool as the default bounded is deprecated (see SMXCOMP-157)
if (getHttpClientThreadPool() == null) {
QueuedThreadPool qtp = new QueuedThreadPool();
if (httpClientMinThreads != null) {
qtp.setMinThreads(httpClientMinThreads.intValue());
}
if (httpClientMaxThreads != null) {
qtp.setMaxThreads(httpClientMaxThreads.intValue());
}
try {
qtp.start();
} catch (Exception e) {
throw new RuntimeCamelException("Error starting JettyHttpClient thread pool: " + qtp, e);
}
setHttpClientThreadPool(qtp);
}
httpClient.setThreadPool(getHttpClientThreadPool());
}
return httpClient;
}
public void setHttpClient(HttpClient httpClient) {
this.httpClient = httpClient;
}
public ThreadPool getHttpClientThreadPool() {
return httpClientThreadPool;
}
public void setHttpClientThreadPool(ThreadPool httpClientThreadPool) {
this.httpClientThreadPool = httpClientThreadPool;
}
public Integer getHttpClientMinThreads() {
return httpClientMinThreads;
}
public void setHttpClientMinThreads(Integer httpClientMinThreads) {
this.httpClientMinThreads = httpClientMinThreads;
}
public Integer getHttpClientMaxThreads() {
return httpClientMaxThreads;
}
public void setHttpClientMaxThreads(Integer httpClientMaxThreads) {
this.httpClientMaxThreads = httpClientMaxThreads;
}
// Implementation methods
// -------------------------------------------------------------------------
protected CamelServlet createServletForConnector(Server server, Connector connector, List<Handler> handlers) throws Exception {
CamelServlet camelServlet = new CamelServlet();
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;
}
protected Server createServer() throws Exception {
Server server = new Server();
ContextHandlerCollection collection = new ContextHandlerCollection();
collection.setServer(server);
server.addHandler(collection);
server.start();
return server;
}
@Override
protected void doStart() throws Exception {
super.doStart();
if (httpClientThreadPool != null && httpClientThreadPool instanceof LifeCycle) {
LifeCycle lc = (LifeCycle) httpClientThreadPool;
lc.start();
}
if (httpClient != null && !httpClient.isStarted()) {
httpClient.start();
}
}
@Override
protected void doStop() throws Exception {
super.doStop();
if (httpClient != null) {
httpClient.stop();
}
if (httpClientThreadPool != null && httpClientThreadPool instanceof LifeCycle) {
LifeCycle lc = (LifeCycle) httpClientThreadPool;
lc.stop();
}
}
}