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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.tomcat.bayeux.request;
 
 import static org.jboss.web.CoyoteMessages.MESSAGES;
 
 
 
Handshake request Bayeux message.

Author(s):
Guy A. Molinari
Filip Hanik
Version:
1.0
 
 public class MetaHandshakeRequest extends RequestBase implements BayeuxRequest {
 
     protected static HashMap<String,ObjectresponseTemplate = new HashMap<String,Object>();
     
     static {
         .put(.,"1.0");
     }
 
     public MetaHandshakeRequest(TomcatBayeux tomcatBayeuxHttpEvent eventJSONObject jsReqthrows JSONException {
         super(tomcatBayeuxeventjsReq);
     }
     
 
     public String getVersion() { return ; }
     public String getMinimumVersion() { return ; }


    
Check client request for validity. Per section 4.1.1 of the Bayuex spec a handshake request must contain: 1) The "/meta/handshake" channel identifier. 2) The version of the protocol supported by the client 3) The client's supported connection types.

Returns:
HttpError This method returns null if no errors were found
 
     public HttpError validate() {
         boolean error = (==null || .length()==0);
         if (!errorerror = ==0;
         if (errorreturn new HttpError(400, .invalidBayeuxHandshake(),null);
         else return null;
     }

    
Generate and return a client identifier. Return a list of supported connection types. Must be a subset of or identical to the list of types supported by the client. See section 4.1.2 of the Bayuex specification.
 
     public int process(int prevopsthrows BayeuxException {
         prevops = super.process(prevops);
          = (HashMap<StringObject>).clone();
         ClientImpl client = null;
         HttpError error = validate();
         if (error == null) {
             client = (ClientImplgetTomcatBayeux().newClient("http-"nullfalse,getEvent());
              = client.getId();
             client.setSupportedConnTypes();
             client.setUseJsonFiltered(getExt().get(.) != null);
             .put(.client.getId());
        }else {
            .put(.error.toString());
            client = TomcatBayeux.getErrorClient();
        }
        try {
            JSONObject obj = new JSONObject();
            addToDeliveryQueue(clientobj);
        } catch (ServletException x) {
            throw new BayeuxException(x);
        } catch (IOException x) {
            throw new BayeuxException(x);
        }
        return 0;
    }
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