1 files changed, 122 insertions, 0 deletions
diff --git a/sandbox/old/contrib/discovery/jxta/src/main/java/org/apache/tuscany/service/discovery/jxta/prp/TuscanyQueryHandler.java b/sandbox/old/contrib/discovery/jxta/src/main/java/org/apache/tuscany/service/discovery/jxta/prp/TuscanyQueryHandler.java
new file mode 100644
index 0000000000..f1d4a2ae2f
--- /dev/null
+++ b/sandbox/old/contrib/discovery/jxta/src/main/java/org/apache/tuscany/service/discovery/jxta/prp/TuscanyQueryHandler.java
@@ -0,0 +1,122 @@
+/*
+ * 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.tuscany.service.discovery.jxta.prp;
+
+import javax.xml.namespace.QName;
+import javax.xml.stream.XMLStreamException;
+import javax.xml.stream.XMLStreamReader;
+
+import net.jxta.impl.protocol.ResolverResponse;
+import net.jxta.protocol.ResolverQueryMsg;
+import net.jxta.protocol.ResolverResponseMsg;
+import net.jxta.resolver.QueryHandler;
+import net.jxta.resolver.ResolverService;
+
+import org.apache.tuscany.service.discovery.jxta.JxtaDiscoveryService;
+import org.apache.tuscany.service.discovery.jxta.JxtaException;
+import org.apache.tuscany.spi.services.discovery.RequestListener;
+import org.apache.tuscany.spi.services.discovery.ResponseListener;
+import org.apache.tuscany.spi.util.stax.StaxUtil;
+
+/**
+ * Generic quety handler for tuscany PRP (Peer Resolver Protocol) messages. The 
+ * <code>processQuery</code> method is invoked on the receiver and the <code>
+ * processResponse</code> is invoked on the sender when the receiver responds.
+ * @version $Revision$ $Date$
+ *
+ */
+public class TuscanyQueryHandler implements QueryHandler {
+    
+    /** Resolver service for sending responses. */
+    private final ResolverService resolverService;
+    
+    /** Discovery service. */
+    private final JxtaDiscoveryService discoveryService;
+    
+    /**
+     * Initializes the JXTA resolver service and tuscany discovery service.
+     * 
+     * @param resolverService Resolver service.
+     * @param discoveryService Tuscany discovery service.
+     */
+    public TuscanyQueryHandler(final ResolverService resolverService, final JxtaDiscoveryService discoveryService) {
+        this.resolverService = resolverService;
+        this.discoveryService = discoveryService;
+    }
+
+    /**
+     * Processes a query message.
+     */
+    public int processQuery(ResolverQueryMsg queryMessage) {
+        
+        try {
+            
+            final String message = queryMessage.getQuery();
+            final int queryId = queryMessage.getQueryId();
+            final String source = queryMessage.getSrc();
+            final String handler = queryMessage.getHandlerName();
+            
+            final QName messageType = StaxUtil.getDocumentElementQName(message);
+            RequestListener messageListener = discoveryService.getRequestListener(messageType);
+            if(messageListener != null) {
+                
+                XMLStreamReader requestReader = StaxUtil.createReader(message);
+                XMLStreamReader responseReader = messageListener.onRequest(requestReader);
+                String response = StaxUtil.serialize(responseReader);
+                
+                ResolverResponse responseMessage = new ResolverResponse();
+                responseMessage.setResponse(response);
+                responseMessage.setHandlerName(handler);
+                responseMessage.setQueryId(queryId);
+
+                resolverService.sendResponse(source, responseMessage);
+                
+            }
+            return ResolverService.OK;
+            
+        } catch(XMLStreamException ex) {
+            throw new JxtaException(ex);
+        }
+        
+    }
+
+    /**
+     * Processes a response message.
+     */
+    public void processResponse(ResolverResponseMsg responseMessage) {
+        
+        try {
+            
+            final String message = responseMessage.getResponse();
+            final int queryId = responseMessage.getQueryId();
+            
+            final QName messageType = StaxUtil.getDocumentElementQName(message);
+            ResponseListener messageListener = discoveryService.getResponseListener(messageType);
+            if(messageListener != null) {     
+                XMLStreamReader responseReader = StaxUtil.createReader(message);       
+                messageListener.onResponse(responseReader, queryId);
+            }
+            
+        } catch(XMLStreamException ex) {
+            throw new JxtaException(ex);
+        }
+        
+    }
+
+}