SWS-351 - Arbitrary parameter injection for @Endpoints

core/src/main/java/org/springframework/ws/server/endpoint/adapter/method/DomMethodArgumentProcessor.java

@@ -43,7 +43,7 @@ public class DomMethodArgumentProcessor extends AbstractPayloadMethodProcessor {
     }
 
     @Override
-    protected Object resolveRequestPayloadArgument(Source requestPayload, MethodParameter parameter) throws Exception {
+    protected Node resolveRequestPayloadArgument(Source requestPayload, MethodParameter parameter) throws Exception {
         if (requestPayload instanceof DOMSource) {
             return resolveArgumentDomSource(parameter, (DOMSource) requestPayload);
         }
@@ -77,7 +77,7 @@ public class DomMethodArgumentProcessor extends AbstractPayloadMethodProcessor {
     }
 
     @Override
-    protected Source createResponsePayload(MethodParameter returnType, Object returnValue) {
+    protected DOMSource createResponsePayload(MethodParameter returnType, Object returnValue) {
         Node returnedNode = (Node) returnValue;
         return new DOMSource(returnedNode);
     }

core/src/main/java/org/springframework/ws/server/endpoint/adapter/method/MessageContextMethodArgumentResolver.java

@@ -0,0 +1,37 @@
+/*
+ * Copyright 2005-2010 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.springframework.ws.server.endpoint.adapter.method;
+
+import org.springframework.core.MethodParameter;
+import org.springframework.ws.context.MessageContext;
+
+/**
+ * Implementation of {@link MethodArgumentResolver} that supports {@link MessageContext} arguments.
+ *
+ * @author Arjen Poutsma
+ * @since 2.0
+ */
+public class MessageContextMethodArgumentResolver implements MethodArgumentResolver {
+
+    public boolean supportsParameter(MethodParameter parameter) {
+        return MessageContext.class.equals(parameter.getParameterType());
+    }
+
+    public MessageContext resolveArgument(MessageContext messageContext, MethodParameter parameter) throws Exception {
+        return messageContext;
+    }
+}

core/src/test/java/org/springframework/ws/server/endpoint/adapter/method/MessageContextMethodArgumentResolverTest.java

@@ -0,0 +1,58 @@
+/*
+ * Copyright 2005-2010 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.springframework.ws.server.endpoint.adapter.method;
+
+import org.springframework.core.MethodParameter;
+import org.springframework.ws.MockWebServiceMessageFactory;
+import org.springframework.ws.context.DefaultMessageContext;
+import org.springframework.ws.context.MessageContext;
+
+import org.junit.Before;
+import org.junit.Test;
+
+import static org.junit.Assert.assertSame;
+import static org.junit.Assert.assertTrue;
+
+public class MessageContextMethodArgumentResolverTest {
+
+    private MessageContextMethodArgumentResolver resolver;
+
+    private MethodParameter supported;
+
+    @Before
+    public void setUp() throws NoSuchMethodException {
+        resolver = new MessageContextMethodArgumentResolver();
+        supported = new MethodParameter(getClass().getMethod("supported", MessageContext.class), 0);
+    }
+
+    @Test
+    public void supportsParameter() throws Exception {
+        assertTrue("resolver does not support MessageContext", resolver.supportsParameter(supported));
+    }
+
+    @Test
+    public void resolveArgument() throws Exception {
+        MessageContext messageContext = new DefaultMessageContext(new MockWebServiceMessageFactory());
+
+        MessageContext result = resolver.resolveArgument(messageContext, supported);
+        assertSame("Invalid message context returned", messageContext, result);
+    }
+
+    public void supported(MessageContext messageContext) {
+    }
+
+}