1 files changed, 136 insertions, 0 deletions
diff --git a/sandbox/event/modules/runtime-tomcat/src/main/java/org/apache/tuscany/sca/runtime/tomcat/EndpointResolverImpl.java b/sandbox/event/modules/runtime-tomcat/src/main/java/org/apache/tuscany/sca/runtime/tomcat/EndpointResolverImpl.java
new file mode 100644
index 0000000000..e05004160c
--- /dev/null
+++ b/sandbox/event/modules/runtime-tomcat/src/main/java/org/apache/tuscany/sca/runtime/tomcat/EndpointResolverImpl.java
@@ -0,0 +1,136 @@
+/*
+ * 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.sca.runtime.tomcat;
+
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.logging.Logger;
+
+import org.apache.catalina.core.StandardContext;
+import org.apache.tuscany.sca.assembly.Binding;
+import org.apache.tuscany.sca.assembly.Component;
+import org.apache.tuscany.sca.assembly.Endpoint;
+import org.apache.tuscany.sca.assembly.builder.DefaultEndpointBuilder;
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.endpointresolver.EndpointResolver;
+import org.apache.tuscany.sca.endpointresolver.EndpointResolverFactory;
+import org.apache.tuscany.sca.endpointresolver.EndpointResolverFactoryExtensionPoint;
+import org.apache.tuscany.sca.host.embedded.SCADomain;
+import org.apache.tuscany.sca.host.embedded.impl.DefaultSCADomain;
+import org.apache.tuscany.sca.host.webapp.WebAppServletHost;
+import org.apache.tuscany.sca.monitor.Monitor;
+import org.apache.tuscany.sca.monitor.Problem;
+
+
+/** 
+ * The endpoint resolver allows unresolved endpoints to be plumbed into
+ * the runtime start and message send processing as a hook to late resolution
+ * of target services
+ * 
+ * @version $Rev$ $Date$
+ */
+public class EndpointResolverImpl implements EndpointResolver {
+
+    private final static Logger logger = Logger.getLogger(EndpointResolverImpl.class.getName());
+
+    private Endpoint endpoint;
+    private List<EndpointResolver> endpointResolvers = new ArrayList<EndpointResolver>();    
+
+    public EndpointResolverImpl(ExtensionPointRegistry extensionPoints,
+                                Endpoint endpoint) {
+        this.endpoint = endpoint;
+        
+        EndpointResolverFactoryExtensionPoint resolverFactories = 
+            extensionPoints.getExtensionPoint(EndpointResolverFactoryExtensionPoint.class);
+        
+        for (Binding binding : endpoint.getCandidateBindings()){
+            EndpointResolverFactory resolverFactory = resolverFactories.getEndpointResolverFactory(binding.getClass());
+            
+            // if the binding in question has a endpoint resolver factory they try and 
+            // create an endpoint resolver
+            if (resolverFactory != null){
+                EndpointResolver resolver = resolverFactory.createEndpointResolver(endpoint, binding);
+                
+                if (resolver != null){
+                    endpointResolvers.add(resolver);
+                }
+            }
+        }
+    }
+    
+    public void start(){
+        // do nothing
+    }
+    
+    public void resolve() {
+        if (endpoint.isUnresolved()){
+            logger.info("resolving endpoint: " + endpoint.getTargetName());
+
+            Component target = findTarget();
+            if (target != null) {
+                logger.info("endpoint target found: " + endpoint.getTargetName() + " component " + target);
+                resolveEndpoint(target);
+            } else {
+                logger.info("endpoint target not found: " + endpoint.getTargetName());
+            }
+            
+        }
+    }
+
+    protected void resolveEndpoint(Component targetComponent) {
+        
+        endpoint.setTargetComponent(targetComponent);
+        endpoint.setTargetComponentService(targetComponent.getServices().get(0)); // TODO real service
+
+        DefaultEndpointBuilder ebi = new DefaultEndpointBuilder(new Monitor() {
+            public void problem(Problem problem) {
+                logger.warning(problem.toString());
+            }
+            
+            public List<Problem> getProblems() {
+                return null;
+            }    
+        });
+
+        ebi.build(endpoint);
+    }
+
+    protected Component findTarget() {
+        for (StandardContext sc : TuscanyHost.scaApps) {
+            SCADomain scaDomain = (SCADomain)sc.getServletContext().getAttribute(WebAppServletHost.SCA_DOMAIN_ATTRIBUTE);
+            if (scaDomain != null) {
+                Component component = ((DefaultSCADomain)scaDomain).getComponent(endpoint.getTargetName());
+                if ( component != null) {
+                    return component;
+                }
+            }
+        }
+        return null;
+    }
+
+    public void stop() {
+        if (!endpoint.isUnresolved()){
+            // Currently the CompositeActivator stop() should take care of the providers and 
+            // wires that have been added. 
+        }
+    }
+
+}