Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.databoard / src / org / simantics / databoard / binding / factory / BindingRepository.java

diff --git a/bundles/org.simantics.databoard/src/org/simantics/databoard/binding/factory/BindingRepository.java b/bundles/org.simantics.databoard/src/org/simantics/databoard/binding/factory/BindingRepository.java
new file mode 100644 (file)
index 0000000..f147206
--- /dev/null
+++ b/bundles/org.simantics.databoard/src/org/simantics/databoard/binding/factory/BindingRepository.java
@@ -0,0 +1,122 @@
+/*******************************************************************************\r
+ * Copyright (c) 2007, 2011 Association for Decentralized Information Management in\r
+ * Industry THTH ry.\r
+ * All rights reserved. This program and the accompanying materials\r
+ * are made available under the terms of the Eclipse Public License v1.0\r
+ * which accompanies this distribution, and is available at\r
+ * http://www.eclipse.org/legal/epl-v10.html\r
+ *\r
+ * Contributors:\r
+ *     VTT Technical Research Centre of Finland - initial API and implementation\r
+ *******************************************************************************/\r
+package org.simantics.databoard.binding.factory;\r
+\r
+import java.util.HashMap;\r
+import java.util.Map;\r
+import java.util.Map.Entry;\r
+\r
+import org.simantics.databoard.binding.Binding;\r
+import org.simantics.databoard.binding.reflection.BindingRequest;\r
+\r
+public class BindingRepository {\r
+       \r
+       /**\r
+        * This map contains all the bindings\r
+        */\r
+       Map<BindingRequest, Binding> requestMap;\r
+       \r
+       /**\r
+        * This map contains bindings for non-generic classes. \r
+        */\r
+       Map<Class<?>, Binding> classMap;\r
+       \r
+       public BindingRepository() {            \r
+               requestMap = new HashMap<BindingRequest, Binding>();\r
+               classMap = new HashMap<Class<?>, Binding>();\r
+       }\r
+       \r
+       public BindingRepository(Map<BindingRequest, Binding> requests) {\r
+               this.requestMap = requests;\r
+               for (Entry<BindingRequest, Binding> e : requests.entrySet()) {\r
+                       if ( isClassRequest( e.getKey() ) ) {\r
+                               classMap.put(e.getKey().getClazz(), e.getValue());\r
+                       }\r
+               }\r
+       }\r
+       \r
+       /**\r
+        * Get binding for a class. May return the class if it is in the class map.\r
+        * If not, the user should try request map with some arguments (component bindings)\r
+        * \r
+        * @param clazz\r
+        * @return binding\r
+        */\r
+       public synchronized Binding get(Class<?> clazz) {\r
+               return classMap.get( clazz );\r
+       }\r
+       \r
+       /**\r
+        * Get binding for a binding request\r
+        * \r
+        * @param request\r
+        * @return binding or null\r
+        */\r
+       public synchronized Binding get( BindingRequest request ) {\r
+               return requestMap.get( request );\r
+       }\r
+       \r
+       /**\r
+        * Adds binding to the repository. If the request has no arguments, the \r
+        * class is added to classMap, and is available with class request.  \r
+        * \r
+        * @param request\r
+        * @param binding\r
+        */\r
+       public synchronized void put( BindingRequest request, Binding binding ) {\r
+               if ( isClassRequest(request) ) {\r
+                       classMap.put( request.getClazz(), binding );\r
+               }\r
+               requestMap.put( request, binding );\r
+       }\r
+       \r
+       public synchronized void remove(Binding binding) {\r
+               for (Entry<BindingRequest, Binding> e : requestMap.entrySet()) {\r
+                       if (e.getValue() == binding) {\r
+                               requestMap.remove(e.getValue());\r
+                               break;\r
+                       }\r
+               }\r
+               \r
+               for (Entry<Class<?>, Binding> e : classMap.entrySet()) {\r
+                       if (e.getValue() == binding) {\r
+                               classMap.remove(e.getValue());\r
+                               break;\r
+                       }\r
+               }\r
+}\r
+       \r
+       public synchronized boolean containsRequest( BindingRequest request ) {\r
+               return requestMap.containsKey( request );\r
+       }\r
+       \r
+       /**\r
+        * Checks if repository contains a class without arguments\r
+        * \r
+        * @param clazz \r
+        * @return true if contains class (without args)\r
+        */\r
+       public synchronized boolean containsClass( Class<?> clazz ) {\r
+               return classMap.containsKey( clazz );\r
+       }\r
+       \r
+       public synchronized void clear() {\r
+               requestMap.clear();\r
+               classMap.clear();\r
+       }\r
+\r
+       boolean isClassRequest( BindingRequest request )\r
+       {\r
+               return request.className != null && (request.annotations==null || request.annotations.length==0);\r
+       }\r
+\r
+}\r