1 files changed, 133 insertions, 0 deletions
diff --git a/tags/java/sca/1.5.1-RC4/modules/policy-security-http/src/main/java/org/apache/tuscany/sca/policy/security/http/extensibility/DefaultLDAPSecurityExtensionPoint.java b/tags/java/sca/1.5.1-RC4/modules/policy-security-http/src/main/java/org/apache/tuscany/sca/policy/security/http/extensibility/DefaultLDAPSecurityExtensionPoint.java
new file mode 100644
index 0000000000..b454289673
--- /dev/null
+++ b/tags/java/sca/1.5.1-RC4/modules/policy-security-http/src/main/java/org/apache/tuscany/sca/policy/security/http/extensibility/DefaultLDAPSecurityExtensionPoint.java
@@ -0,0 +1,133 @@
+/*
+ * 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.policy.security.http.extensibility;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Set;
+
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.core.UtilityExtensionPoint;
+import org.apache.tuscany.sca.extensibility.ServiceDeclaration;
+import org.apache.tuscany.sca.extensibility.ServiceDiscovery;
+import org.apache.tuscany.sca.monitor.Monitor;
+import org.apache.tuscany.sca.monitor.MonitorFactory;
+import org.apache.tuscany.sca.monitor.Problem;
+import org.apache.tuscany.sca.monitor.Problem.Severity;
+
+
+/**
+ * Default Extension point for LDAP Security Handlers
+ * 
+ * @version $Rev$ $Date$
+ */
+
+public class DefaultLDAPSecurityExtensionPoint implements LDAPSecurityHandlerExtensionPoint {
+    private List<LDAPSecurityHandler> securityHandlers = new ArrayList<LDAPSecurityHandler>();
+    
+    private ExtensionPointRegistry extensionPoints;
+    private Monitor monitor = null;
+
+    private boolean loaded = false;
+    
+    public DefaultLDAPSecurityExtensionPoint(ExtensionPointRegistry extensionPoints) {
+        this.extensionPoints = extensionPoints;
+        
+        UtilityExtensionPoint utilities = extensionPoints.getExtensionPoint(UtilityExtensionPoint.class);
+        MonitorFactory monitorFactory = utilities.getUtility(MonitorFactory.class);
+        if (monitorFactory != null) {
+                this.monitor = monitorFactory.createMonitor();
+        }
+    }
+
+
+    public void addLDAPSecurityHandler(LDAPSecurityHandler securityHandler) {
+        securityHandlers.add(securityHandler);
+    }
+
+    public void removeLDAPSecurityHandler(LDAPSecurityHandler securityHandler) {
+        securityHandlers.remove(securityHandler);
+    }
+
+    public List<LDAPSecurityHandler> getLDAPSecurityHandlers() {
+        loadHandlers();
+        return securityHandlers;
+    }
+
+
+    /**
+     * Private Utility methods
+     */
+    
+    /**
+     * Report a exception.
+     * 
+     * @param problems
+     * @param message
+     * @param model
+    */
+    private void error(String message, Object model, Exception ex) {
+        if (monitor != null) {
+            Problem problem = monitor.createProblem(this.getClass().getName(), null, Severity.ERROR, model, message, ex);
+            monitor.problem(problem);
+        }        
+    }
+    
+    /**
+     * Lazily load artifact processors registered in the extension point.
+     */
+    @SuppressWarnings("unchecked")
+    private synchronized void loadHandlers() {
+        if (loaded) {
+            return;
+        }
+
+        // Get the proxy factories declarations
+        Set<ServiceDeclaration> handlerDeclarations = null;
+        try {
+            handlerDeclarations = ServiceDiscovery.getInstance().getServiceDeclarations(LDAPSecurityHandler.class);
+        } catch (IOException e) {
+            IllegalStateException ie = new IllegalStateException(e);
+            error("IllegalStateException", handlerDeclarations, ie);
+            throw ie;
+        }
+
+        for (ServiceDeclaration processorDeclaration : handlerDeclarations) {
+            // Create a factory, and register it
+            LDAPSecurityHandler securityHandler = null;
+            try {
+                Class<LDAPSecurityHandler> securityHandlerClass = (Class<LDAPSecurityHandler>) processorDeclaration.loadClass();
+                
+                securityHandler = securityHandlerClass.newInstance();
+                
+            } catch (Exception e) {
+                IllegalStateException ie = new IllegalStateException(e);
+                error("IllegalStateException", securityHandler, ie);
+                throw ie;
+            }
+
+            addLDAPSecurityHandler(securityHandler);
+        }
+
+        loaded = true;
+    }
+
+}