/**
* 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.web.resources;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.ws.rs.Consumes;
import javax.ws.rs.POST;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.HttpHeaders;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.MultivaluedMap;
import javax.ws.rs.core.Response;
import com.sun.jersey.api.representation.Form;
import org.apache.camel.Endpoint;
import org.apache.camel.Exchange;
import org.apache.camel.Message;
import org.apache.camel.Processor;
import org.apache.camel.spi.BrowsableEndpoint;
import org.apache.camel.util.ExchangeHelper;
import org.apache.camel.web.model.EndpointLink;
/**
* A Camel <a href="http://camel.apache.org/endpoint.html">Endpoint</a>
*/
public class EndpointResource extends CamelChildResourceSupport {
private final String key;
private final Endpoint endpoint;
public EndpointResource(CamelContextResource contextResource, String key, Endpoint endpoint) {
super(contextResource);
this.key = key;
this.endpoint = endpoint;
}
public String getHref() {
return new EndpointLink(key, endpoint).getHref();
}
public String getKey() {
return key;
}
public String getUri() {
return endpoint.getEndpointUri();
}
public Endpoint getEndpoint() {
return endpoint;
}
public BrowsableEndpoint getBrowsableEndpoint() {
if (endpoint instanceof BrowsableEndpoint) {
return (BrowsableEndpoint) endpoint;
}
return null;
}
/**
* Returns a single Camel <a href="http://camel.apache.org/exchange.html">message exchange</a> on this endpoint if the endpoint supports
* <a href="http://camel.apache.org/browsableendpoint.html">being browsed</a>
*/
@Path("messages/{id}")
public ExchangeResource getExchange(@PathParam("id") String exchangeId) {
if (endpoint instanceof BrowsableEndpoint) {
BrowsableEndpoint browsableEndpoint = (BrowsableEndpoint) endpoint;
Exchange exchange = ExchangeHelper.getExchangeById(browsableEndpoint.getExchanges(), exchangeId);
if (exchange != null) {
return new ExchangeResource(this, exchange);
}
}
// should return 404
return null;
}
/**
* Posts a <a href="http://camel.apache.org/message.html">message</a> to this Camel endpoint with the payload
* being text, XML or JSON
*/
@POST
@Consumes({MediaType.TEXT_PLAIN, MediaType.TEXT_HTML, MediaType.TEXT_XML, MediaType.APPLICATION_XML})
public Response postMessage(@Context HttpHeaders headers, final String body) throws URISyntaxException {
Map<String, Object> messageHeaders = multivalueMapToMap(headers.getRequestHeaders());
sendMessage(messageHeaders, body);
return Response.ok().build();
}
/**
* Posts a <a href="http://camel.apache.org/message.html">message</a> to this Camel endpoint taking the
* form data and extracting the <code>body</code> field as the body of the message.
*/
@POST
@Consumes("application/x-www-form-urlencoded")
public Response postMessageForm(@Context HttpHeaders headers, Form formData) throws URISyntaxException {
String body = getBodyData(formData);
Map<String, Object> messageHeaders = multivalueMapToMap(headers.getRequestHeaders());
messageHeaders.putAll(getHeadersData(formData));
sendMessage(messageHeaders, body);
return Response.seeOther(new URI(getHref())).build();
}
private Map<String, Object> getHeadersData(Form formData) {
Map<String, Object> headers = new HashMap<String, Object>();
Map<String, Object> formMap = multivalueMapToMap(formData);
for (Map.Entry<String, Object> entry : formMap.entrySet()) {
if (entry.getKey().startsWith("header_")) {
headers.put((String) entry.getValue(), getHeaderValueForKey(entry.getKey(), formMap));
}
}
return headers;
}
private Object getHeaderValueForKey(String key, Map<String, Object> headers) {
return headers.get("value_" + key);
}
private String getBodyData(Form formData) {
return formData.getFirst("body", String.class);
}
private Map<String, Object> multivalueMapToMap(MultivaluedMap<String, String> multivaluedMap) {
Map<String, Object> resultMap = new HashMap<String, Object>();
if (multivaluedMap != null) {
for (Map.Entry<String, List<String>> entry : multivaluedMap.entrySet()) {
List<String> values = entry.getValue();
int size = values.size();
if (size == 1) {
resultMap.put(entry.getKey(), entry.getValue().get(0));
} else if (size > 0) {
resultMap.put(entry.getKey(), entry.getValue());
}
}
}
return resultMap;
}
protected void sendMessage(final Map<String, Object> headers, final String body) {
getTemplate().send(endpoint, new Processor() {
public void process(Exchange exchange) throws Exception {
Message in = exchange.getIn();
in.setBody(body);
in.setHeaders(headers);
}
});
}
}