/**
* 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.servlet;
import java.net.URI;
import java.util.LinkedHashSet;
import java.util.Map;
import java.util.Set;
import org.apache.camel.Endpoint;
import org.apache.camel.component.http.AuthMethod;
import org.apache.camel.component.http.CamelServlet;
import org.apache.camel.component.http.HttpBinding;
import org.apache.camel.component.http.HttpClientConfigurer;
import org.apache.camel.component.http.HttpComponent;
import org.apache.camel.component.http.HttpConsumer;
import org.apache.camel.util.CastUtils;
import org.apache.camel.util.IntrospectionSupport;
import org.apache.camel.util.ObjectHelper;
import org.apache.camel.util.URISupport;
import org.apache.camel.util.UnsafeUriCharactersEncoder;
import org.apache.commons.httpclient.HttpConnectionManager;
import org.apache.commons.httpclient.params.HttpClientParams;
public class ServletComponent extends HttpComponent {
private CamelServlet camelServlet;
private CamelServletService camelServletService;
public void setCamelServlet(CamelServlet servlet) {
camelServlet = servlet;
}
public void setCamelServletService(CamelServletService service) {
camelServletService = service;
}
public CamelServlet getCamelServlet(String servletName) {
CamelServlet answer;
if (camelServlet == null) {
answer = CamelHttpTransportServlet.getCamelServlet(servletName);
} else {
answer = camelServlet;
}
if (answer == null) {
throw new IllegalArgumentException("Cannot find the deployed servlet, please configure the ServletComponent"
+ " or configure a org.apache.camel.component.servlet.CamelHttpTransportServlet servlet in web.xml ");
}
return answer;
}
public CamelServletService getCamelServletService() {
return camelServletService;
}
@Override
protected Endpoint createEndpoint(String uri, String remaining, Map<String, Object> parameters) throws Exception {
uri = uri.startsWith("servlet:") ? remaining : uri;
HttpClientParams params = new HttpClientParams();
IntrospectionSupport.setProperties(params, parameters, "httpClient.");
// create the configurer to use for this endpoint
final Set<AuthMethod> authMethods = new LinkedHashSet<AuthMethod>();
HttpClientConfigurer configurer = createHttpClientConfigurer(parameters, authMethods);
// must extract well known parameters before we create the endpoint
Boolean throwExceptionOnFailure = getAndRemoveParameter(parameters, "throwExceptionOnFailure", Boolean.class);
Boolean transferException = getAndRemoveParameter(parameters, "transferException", Boolean.class);
Boolean bridgeEndpoint = getAndRemoveParameter(parameters, "bridgeEndpoint", Boolean.class);
HttpBinding binding = resolveAndRemoveReferenceParameter(parameters, "httpBindingRef", HttpBinding.class);
Boolean matchOnUriPrefix = getAndRemoveParameter(parameters, "matchOnUriPrefix", Boolean.class);
// 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)), CastUtils.cast(parameters));
uri = httpUri.toString();
ServletEndpoint endpoint = createServletEndpoint(uri, this, httpUri, params, getHttpConnectionManager(), configurer);
setEndpointHeaderFilterStrategy(endpoint);
// prefer to use endpoint configured over component configured
if (binding == null) {
// fallback to component configured
binding = getHttpBinding();
}
if (binding != null) {
endpoint.setBinding(binding);
}
// should we use an exception for failed error codes?
if (throwExceptionOnFailure != null) {
endpoint.setThrowExceptionOnFailure(throwExceptionOnFailure);
}
// should we transfer exception as serialized object
if (transferException != null) {
endpoint.setTransferException(transferException);
}
if (bridgeEndpoint != null) {
endpoint.setBridgeEndpoint(bridgeEndpoint);
}
if (matchOnUriPrefix != null) {
endpoint.setMatchOnUriPrefix(matchOnUriPrefix);
}
setProperties(endpoint, parameters);
return endpoint;
}
protected ServletEndpoint createServletEndpoint(String endpointUri,
ServletComponent component, URI httpUri, HttpClientParams params,
HttpConnectionManager httpConnectionManager,
HttpClientConfigurer clientConfigurer) throws Exception {
return new ServletEndpoint(endpointUri, component, httpUri, params,
httpConnectionManager, clientConfigurer);
}
public void connect(HttpConsumer consumer) throws Exception {
if (getCamelServletService() != null) {
getCamelServletService().connect(consumer);
} else {
ServletEndpoint endpoint = (ServletEndpoint) consumer.getEndpoint();
CamelServlet servlet = getCamelServlet(endpoint.getServletName());
ObjectHelper.notNull(servlet, "CamelServlet");
servlet.connect(consumer);
}
}
public void disconnect(HttpConsumer consumer) throws Exception {
if (getCamelServletService() != null) {
getCamelServletService().disconnect(consumer);
} else {
ServletEndpoint endpoint = (ServletEndpoint) consumer.getEndpoint();
CamelServlet servlet = getCamelServlet(endpoint.getServletName());
ObjectHelper.notNull(servlet, "CamelServlet");
servlet.disconnect(consumer);
}
}
}