1 files changed, 0 insertions, 182 deletions
diff --git a/sandbox/ant/sca/tags/2.0-M2/modules/databinding/src/main/java/org/apache/tuscany/sca/databinding/impl/MediatorImpl.java b/sandbox/ant/sca/tags/2.0-M2/modules/databinding/src/main/java/org/apache/tuscany/sca/databinding/impl/MediatorImpl.java
deleted file mode 100644
index b7ddf87a41..0000000000
--- a/sandbox/ant/sca/tags/2.0-M2/modules/databinding/src/main/java/org/apache/tuscany/sca/databinding/impl/MediatorImpl.java
+++ /dev/null
@@ -1,182 +0,0 @@
-/*
- * 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.databinding.impl;
-
-import java.security.AccessController;
-import java.security.PrivilegedAction;
-import java.util.List;
-import java.util.Map;
-
-import org.apache.tuscany.sca.databinding.DataBindingExtensionPoint;
-import org.apache.tuscany.sca.databinding.DataPipe;
-import org.apache.tuscany.sca.databinding.DataPipeTransformer;
-import org.apache.tuscany.sca.databinding.Mediator;
-import org.apache.tuscany.sca.databinding.PullTransformer;
-import org.apache.tuscany.sca.databinding.PushTransformer;
-import org.apache.tuscany.sca.databinding.TransformationContext;
-import org.apache.tuscany.sca.databinding.TransformationException;
-import org.apache.tuscany.sca.databinding.Transformer;
-import org.apache.tuscany.sca.databinding.TransformerExtensionPoint;
-import org.apache.tuscany.sca.interfacedef.DataType;
-import org.apache.tuscany.sca.interfacedef.Operation;
-import org.apache.tuscany.sca.interfacedef.impl.DataTypeImpl;
-
-/**
- * Default Mediator implementation
- *
- * @version $Rev$ $Date$
- */
-public class MediatorImpl implements Mediator {
-
-    private DataBindingExtensionPoint dataBindings;
-    private TransformerExtensionPoint transformers;
-
-    public MediatorImpl(DataBindingExtensionPoint dataBindings, TransformerExtensionPoint transformers) {
-        this.dataBindings = dataBindings;
-        this.transformers = transformers;
-    }
-
-    @SuppressWarnings("unchecked")
-    public Object mediate(Object source, DataType sourceDataType, DataType targetDataType, Map<String, Object> metadata) {
-        if (sourceDataType == null || sourceDataType.getDataBinding() == null) {
-            if (source != null) {
-                Operation operation = (Operation) metadata.get("source.operation");
-                sourceDataType = dataBindings.introspectType(source, operation);
-            }
-        }
-        if (sourceDataType == null || targetDataType == null) {
-            return source;
-        } else if (sourceDataType.equals(targetDataType)) {
-            return source;
-        }
-
-        List<Transformer> path = getTransformerChain(sourceDataType, targetDataType);
-
-        Object result = source;
-        int size = path.size();
-        int i = 0;
-        while (i < size) {
-            Transformer transformer = path.get(i);
-            TransformationContext context =
-                createTransformationContext(sourceDataType, targetDataType, size, i, transformer, metadata);
-            // the source and target type
-            if (transformer instanceof PullTransformer) {
-                // For intermediate node, set data type to null
-                result = ((PullTransformer)transformer).transform(result, context);
-            } else if (transformer instanceof PushTransformer) {
-                DataPipeTransformer dataPipeFactory = (i < size - 1) ? (DataPipeTransformer)path.get(++i) : null;
-                DataPipe dataPipe = dataPipeFactory == null ? null : dataPipeFactory.newInstance();
-                ((PushTransformer)transformer).transform(result, dataPipe.getSink(), context);
-                result = dataPipe.getResult();
-            }
-            i++;
-        }
-
-        return result;
-    }
-
-    private TransformationContext createTransformationContext(DataType sourceDataType,
-                                                              DataType targetDataType,
-                                                              int size,
-                                                              int index,
-                                                              Transformer transformer,
-                                                              Map<String, Object> metadata) {
-        DataType sourceType =
-            (index == 0) ? sourceDataType : new DataTypeImpl<Object>(transformer.getSourceDataBinding(), Object.class,
-                                                                     sourceDataType.getLogical());
-        DataType targetType =
-            (index == size - 1) ? targetDataType : new DataTypeImpl<Object>(transformer.getTargetDataBinding(),
-                                                                            Object.class, targetDataType.getLogical());
-        
-        //FIXME The ClassLoader should be passed in
-        // Allow privileged access to get ClassLoader. Requires RuntimePermission in security
-        // policy.
-        ClassLoader classLoader = AccessController.doPrivileged(new PrivilegedAction<ClassLoader>() {
-            public ClassLoader run() {
-                return Thread.currentThread().getContextClassLoader();
-            }
-        });           
-        
-        TransformationContext context = new TransformationContextImpl(sourceType, targetType, classLoader, metadata);
-        return context;
-    }
-
-    @SuppressWarnings("unchecked")
-    public void mediate(Object source,
-                        Object target,
-                        DataType sourceDataType,
-                        DataType targetDataType,
-                        Map<String, Object> metadata) {
-        if (source == null) {
-            // Shortcut for null value
-            return;
-        }
-        if (sourceDataType == null || sourceDataType.getDataBinding() == null) {
-            Operation operation = (Operation) metadata.get("source.operation");
-            sourceDataType = dataBindings.introspectType(source, operation);
-        }
-        if (sourceDataType == null) {
-            return;
-        } else if (sourceDataType.equals(targetDataType)) {
-            return;
-        }
-
-        List<Transformer> path = getTransformerChain(sourceDataType, targetDataType);
-        Object result = source;
-        int size = path.size();
-        for (int i = 0; i < size; i++) {
-            Transformer transformer = path.get(i);
-            TransformationContext context =
-                createTransformationContext(sourceDataType, targetDataType, size, i, transformer, metadata);
-
-            if (transformer instanceof PullTransformer) {
-                result = ((PullTransformer)transformer).transform(result, context);
-            } else if (transformer instanceof PushTransformer) {
-                DataPipeTransformer dataPipeFactory = (i < size - 1) ? (DataPipeTransformer)path.get(++i) : null;
-                DataPipe dataPipe = dataPipeFactory == null ? null : dataPipeFactory.newInstance();
-                Object sink = dataPipe != null ? dataPipe.getSink() : target;
-                ((PushTransformer)transformer).transform(result, sink, context);
-                result = (dataPipe != null) ? dataPipe.getResult() : null;
-            }
-        }
-    }
-
-    private List<Transformer> getTransformerChain(DataType sourceDataType, DataType targetDataType) {
-        String sourceId = sourceDataType.getDataBinding();
-        String targetId = targetDataType.getDataBinding();
-        List<Transformer> path = transformers.getTransformerChain(sourceId, targetId);
-        if (path == null) {
-            TransformationException ex =
-                new TransformationException("No path found for the transformation: " + sourceId + "->" + targetId);
-            ex.setSourceDataBinding(sourceId);
-            ex.setTargetDataBinding(targetId);
-            throw ex;
-        }
-        return path;
-    }
-
-    public DataBindingExtensionPoint getDataBindings() {
-        return dataBindings;
-    }
-
-    public TransformerExtensionPoint getTransformers() {
-        return transformers;
-    }
-
-}