Implemented the ObjectAdapter for adapting existing objects to a component.

[utils] / system / general / src / main / java / org / wamblee / system / adapters / ObjectAdapter.java

diff --git a/system/general/src/main/java/org/wamblee/system/adapters/ObjectAdapter.java b/system/general/src/main/java/org/wamblee/system/adapters/ObjectAdapter.java
new file mode 100644 (file)
index 0000000..91b10b3
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+++ b/system/general/src/main/java/org/wamblee/system/adapters/ObjectAdapter.java
@@ -0,0 +1,58 @@
+/*
+ * Copyright 2008 the original author or authors.
+ * 
+ * Licensed 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.wamblee.system.adapters;
+
+import org.wamblee.system.core.AbstractComponent;
+import org.wamblee.system.core.DefaultProvidedInterface;
+import org.wamblee.system.core.ProvidedInterface;
+import org.wamblee.system.core.RequiredInterface;
+import org.wamblee.system.core.Scope;
+
+/**
+ * An adapter class that adapts an existing object to a component. 
+ *  
+ * @author Erik Brakkee
+ */
+public class ObjectAdapter extends AbstractComponent<Object> {
+
+       private SetterConfiguration _setterConfig;
+       private Object _object; 
+
+       public ObjectAdapter(String aName, Object aObject, SetterConfiguration aSetterConfig) {
+               super(aName, 
+                               new ProvidedInterface[] { new DefaultProvidedInterface(aName, aObject.getClass()) },
+                               aSetterConfig.getRequiredInterfaces().toArray(new RequiredInterface[0]));
+               _setterConfig = aSetterConfig;
+               _object = aObject; 
+       }
+       
+       @Override
+       protected Object doStart(Scope aScope) {
+
+           _setterConfig.inject(aScope, _object);
+           
+           for (ProvidedInterface provided: getProvidedInterfaces()) { 
+               addInterface(provided, _object, aScope); 
+           }
+           
+           return _object; 
+       }
+       
+       @Override
+       protected void doStop(Object aRuntime) {
+               // Empty. 
+       }
+}