1 files changed, 253 insertions, 0 deletions
diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/binding-corba-runtime/src/main/java/org/apache/tuscany/sca/binding/corba/provider/reference/DynaCorbaRequest.java b/sca-java-2.x/tags/2.0.1-RC1/modules/binding-corba-runtime/src/main/java/org/apache/tuscany/sca/binding/corba/provider/reference/DynaCorbaRequest.java
new file mode 100644
index 0000000000..e7d0b8b91b
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+++ b/sca-java-2.x/tags/2.0.1-RC1/modules/binding-corba-runtime/src/main/java/org/apache/tuscany/sca/binding/corba/provider/reference/DynaCorbaRequest.java
@@ -0,0 +1,253 @@
+/*
+ * 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.binding.corba.provider.reference;
+
+import java.lang.annotation.Annotation;
+import java.lang.reflect.Method;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import org.apache.tuscany.sca.binding.corba.provider.exceptions.CorbaException;
+import org.apache.tuscany.sca.binding.corba.provider.exceptions.RequestConfigurationException;
+import org.apache.tuscany.sca.binding.corba.provider.types.TypeTree;
+import org.apache.tuscany.sca.binding.corba.provider.types.TypeTreeCreator;
+import org.apache.tuscany.sca.binding.corba.provider.types.util.TypeHelpersProxy;
+import org.apache.tuscany.sca.binding.corba.provider.types.util.Utils;
+import org.apache.tuscany.sca.binding.corba.provider.util.MethodFinder;
+import org.omg.CORBA.BAD_OPERATION;
+import org.omg.CORBA.BAD_PARAM;
+import org.omg.CORBA.Object;
+import org.omg.CORBA.SystemException;
+import org.omg.CORBA.portable.ApplicationException;
+import org.omg.CORBA.portable.InputStream;
+import org.omg.CORBA.portable.ObjectImpl;
+import org.omg.CORBA.portable.OutputStream;
+
+/**
+ * @version $Rev$ $Date$ Represents single CORBA request
+ */
+public class DynaCorbaRequest {
+
+    private TypeTree returnTree;
+    private Map<String, TypeTree> exceptions = new HashMap<String, TypeTree>();
+    private InputStream inputStream;
+    private ObjectImpl remoteObject;
+    private String operation;
+    private List<java.lang.Object> arguments = new ArrayList<java.lang.Object>();
+    private List<TypeTree> argumentsTypes = new ArrayList<TypeTree>();
+    private Class<?> referenceClass;
+    private Map<Method, String> operationsMap;
+    
+    /**
+     * Creates request.
+     * 
+     * @param ObjectremoteObject remote object reference
+     * @param operation operation to invoke
+     * @param scaBindingRules apply SCA default binding mapping rules
+     */
+    public DynaCorbaRequest(Object remoteObject, String operation) {
+        this.remoteObject = (ObjectImpl)remoteObject;
+        this.operation = operation;
+    }
+
+    /**
+     * Sets class which will be backed by this reference request 
+     * @param referenceClass
+     */
+    public void setReferenceClass(Class<?> referenceClass) {
+        this.referenceClass = referenceClass;
+    }
+
+    /**
+     * Sets method to operation names mapping
+     * @param operationsMap
+     */
+    public void setOperationsMap(Map<Method, String> operationsMap) {
+        this.operationsMap = operationsMap;
+    }
+
+    /**
+     * Adds operation argument - stores arguments and caches its TypeTree. Annotations will be set to null by default.
+     * 
+     * @param argument
+     */
+    public void addArgument(java.lang.Object argument) throws RequestConfigurationException {
+        addArgument(argument, null);
+    }
+    
+    /**
+     * Adds operation argument - stores arguments and caches its TypeTree
+     * 
+     * @param argument
+     */
+    public void addArgument(java.lang.Object argument, Annotation[] notes) throws RequestConfigurationException {
+        TypeTree tree = TypeTreeCreator.createTypeTree(argument.getClass(), notes);
+        argumentsTypes.add(tree);
+        arguments.add(argument);
+    }
+
+    /**
+     * Passing stored arguments to CORBA communication output stream
+     * 
+     * @param outputStream
+     * @throws RequestConfigurationException
+     */
+    private void passArguments(OutputStream outputStream) throws RequestConfigurationException {
+        for (int i = 0; i < arguments.size(); i++) {
+            TypeTree tree = argumentsTypes.get(i);
+            TypeHelpersProxy.write(tree.getRootNode(), outputStream, arguments.get(i));
+        }
+    }
+
+    /**
+     * Sets return type for operation. Annotations will be set to null by default.
+     * 
+     * @param forClass
+     */
+    public void setOutputType(Class<?> forClass) throws RequestConfigurationException {
+        setOutputType(forClass, null);
+    }
+    
+    /**
+     * Sets return type for operation
+     * 
+     * @param forClass
+     */
+    public void setOutputType(Class<?> forClass, Annotation[] notes) throws RequestConfigurationException {
+        returnTree = TypeTreeCreator.createTypeTree(forClass, notes);
+    }
+
+    /**
+     * Configures possible exceptions
+     * 
+     * @param forClass
+     */
+    public void addExceptionType(Class<?> forClass) throws RequestConfigurationException {
+        TypeTree tree = TypeTreeCreator.createTypeTree(forClass, null);
+        String exceptionId = Utils.getTypeId(forClass);
+        exceptions.put(exceptionId, tree);
+    }
+
+    /**
+     * Handles application excpeition.
+     * 
+     * @param ae occured exception
+     * @throws Exception
+     */
+    private void handleApplicationException(ApplicationException ae) throws Exception {
+        try {
+            if (exceptions.size() == 0) {
+                RequestConfigurationException exception =
+                    new RequestConfigurationException(
+                                                      "ApplicationException occured, but no exception type was specified.",
+                                                      ae.getId());
+                throw exception;
+            }
+            InputStream is = ae.getInputStream();
+            String exceptionId = is.read_string();
+            TypeTree tree = exceptions.get(exceptionId);
+            if (tree == null) {
+                RequestConfigurationException exception =
+                    new RequestConfigurationException(
+                                                      "ApplicationException occured, but no such exception was defined",
+                                                      ae.getId());
+                throw exception;
+            } else {
+                Exception ex = (Exception)TypeHelpersProxy.read(tree.getRootNode(), is);
+                throw ex;
+            }
+        } catch (Exception e) {
+            throw e;
+        }
+    }
+
+    /**
+     * Handles exceptions generated by CORBA API
+     * 
+     * @param se
+     */
+    private void handleSystemException(SystemException se) throws Exception {
+        if (se instanceof BAD_OPERATION) {
+            throw new CorbaException("Bad operation name: " + operation, se);
+        } else if (se instanceof BAD_PARAM) {
+            throw new CorbaException("Bad parameter", se);
+        } else {
+            // TODO: handle more system exception types
+            throw new CorbaException(se.getMessage(), se);
+        }
+    }
+
+    /**
+     * Gets operation name which is includes mapping rules
+     * @return
+     */
+    private String getFinalOperationName() {
+        String result = operation;
+        if (referenceClass != null) {
+            Class<?>[] argumentTypes = new Class<?>[arguments.size()];
+            for (int i = 0; i < arguments.size(); i++) {
+                argumentTypes[i] = arguments.get(i).getClass();
+            }
+            Method method = MethodFinder.findMethod(referenceClass, operation, argumentTypes);
+            String newOperation = (String)operationsMap.get(method);
+            if (newOperation != null) {
+                result = newOperation;
+            }
+        }
+        return result;
+    }
+
+    /**
+     * Invokes previously configured request
+     * 
+     * @return
+     */
+    public DynaCorbaResponse invoke() throws Exception {
+        DynaCorbaResponse response = new DynaCorbaResponse();
+        String finalOperationName = getFinalOperationName();
+        OutputStream outputStream = ((ObjectImpl)remoteObject)._request(finalOperationName, true);
+        passArguments(outputStream);
+        try {
+            inputStream = remoteObject._invoke(outputStream);
+            if (inputStream != null && returnTree != null) {
+                response.setContent(TypeHelpersProxy.read(returnTree.getRootNode(), inputStream));
+            }
+        } catch (ApplicationException ae) {
+            handleApplicationException(ae);
+        } catch (SystemException se) {
+            handleSystemException(se);
+        } catch (Exception e) {
+            throw e;
+        } finally {
+            release();
+        }
+        return response;
+    }
+
+    /**
+     * Releases request resources
+     */
+    private void release() {
+        remoteObject._releaseReply(inputStream);
+    }
+
+}