Author: antelder
Date: Thu Feb 26 07:24:10 2009
New Revision: 748046
URL: http://svn.apache.org/viewvc?rev=748046&view=rev
Log:
Add start of a helper class to simplify using the implementation.web
ComponentContext
Added:
tuscany/java/sca/modules/implementation-web-runtime/src/main/java/org/apache/tuscany/sca/implementation/web/runtime/utils/
tuscany/java/sca/modules/implementation-web-runtime/src/main/java/org/apache/tuscany/sca/implementation/web/runtime/utils/ContextHelper.java
Added:
tuscany/java/sca/modules/implementation-web-runtime/src/main/java/org/apache/tuscany/sca/implementation/web/runtime/utils/ContextHelper.java
URL:
http://svn.apache.org/viewvc/tuscany/java/sca/modules/implementation-web-runtime/src/main/java/org/apache/tuscany/sca/implementation/web/runtime/utils/ContextHelper.java?rev=748046&view=auto
==============================================================================
---
tuscany/java/sca/modules/implementation-web-runtime/src/main/java/org/apache/tuscany/sca/implementation/web/runtime/utils/ContextHelper.java
(added)
+++
tuscany/java/sca/modules/implementation-web-runtime/src/main/java/org/apache/tuscany/sca/implementation/web/runtime/utils/ContextHelper.java
Thu Feb 26 07:24:10 2009
@@ -0,0 +1,45 @@
+/*
+ * 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.implementation.web.runtime.utils;
+
+import javax.servlet.ServletContext;
+
+import org.apache.tuscany.sca.runtime.RuntimeComponent;
+import org.oasisopen.sca.ComponentContext;
+import org.oasisopen.sca.ServiceReference;
+import org.oasisopen.sca.ServiceRuntimeException;
+
+public class ContextHelper {
+
+ public static final String COMPONENT_ATTR =
"org.apache.tuscany.sca.implementation.web.RuntimeComponent";
+
+ public static ComponentContext getComponentContext(ServletContext sc) {
+ RuntimeComponent rc =
(RuntimeComponent)sc.getAttribute(COMPONENT_ATTR);
+ return rc.getComponentContext();
+ }
+
+ public static <T> T getReference(String name, Class<T> type,
ServletContext sc) {
+ ServiceReference<T> sr =
getComponentContext(sc).getServiceReference(type, name);
+ if (sr == null) {
+ throw new ServiceRuntimeException("Reference '" + name + "'
undefined");
+ }
+ return sr.getService();
+ }
+}
