1 files changed, 205 insertions, 0 deletions
diff --git a/sandbox/old/contrib/binding-celtix/binding/src/main/java/org/apache/tuscany/binding/celtix/io/NodeDataReader.java b/sandbox/old/contrib/binding-celtix/binding/src/main/java/org/apache/tuscany/binding/celtix/io/NodeDataReader.java
new file mode 100644
index 0000000000..7a14ab33fc
--- /dev/null
+++ b/sandbox/old/contrib/binding-celtix/binding/src/main/java/org/apache/tuscany/binding/celtix/io/NodeDataReader.java
@@ -0,0 +1,205 @@
+/*
+ * 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.binding.celtix.io;
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.InputStream;
+import java.util.List;
+import javax.xml.namespace.QName;
+import javax.xml.stream.XMLInputFactory;
+import javax.xml.stream.XMLStreamReader;
+
+import org.w3c.dom.Node;
+import org.w3c.dom.bootstrap.DOMImplementationRegistry;
+import static org.w3c.dom.bootstrap.DOMImplementationRegistry.PROPERTY;
+import org.w3c.dom.ls.DOMImplementationLS;
+import org.w3c.dom.ls.LSOutput;
+import org.w3c.dom.ls.LSSerializer;
+
+import org.apache.tuscany.spi.databinding.TransformationContext;
+import org.apache.tuscany.spi.model.DataType;
+
+import commonj.sdo.DataObject;
+import commonj.sdo.Property;
+import commonj.sdo.Type;
+import commonj.sdo.helper.TypeHelper;
+import commonj.sdo.helper.XMLDocument;
+
+import org.apache.tuscany.core.databinding.impl.TransformationContextImpl;
+import org.apache.tuscany.databinding.sdo.XMLStreamReader2XMLDocument;
+import org.objectweb.celtix.bindings.DataReader;
+import org.objectweb.celtix.context.ObjectMessageContext;
+
+public class NodeDataReader implements DataReader<Node> {
+
+    private SCADataBindingCallback callback;
+
+    public NodeDataReader(SCADataBindingCallback cb) {
+        callback = cb;
+    }
+
+    public Object read(int idx, Node input) {
+        return read(null, idx, input);
+    }
+
+    public Object read(QName name, int idx, Node input) {
+        try {
+            InputStream in = getNodeStream(input);
+            XMLInputFactory staxFactory = XMLInputFactory.newInstance();
+            XMLStreamReader reader = staxFactory.createXMLStreamReader(in);
+
+            XMLStreamReader2XMLDocument transformer = new XMLStreamReader2XMLDocument();
+            TransformationContext context = new TransformationContextImpl();
+            DataType<QName> binding = new DataType<QName>(DataObject.class, null);
+            binding.setMetadata(TypeHelper.class.getName(), callback.getTypeHelper());
+            context.setTargetDataType(binding);
+            XMLDocument document = transformer.transform(reader, context);
+
+            boolean isWrapped = false;
+            return toObjects(document, isWrapped);
+        } catch (Exception e) {
+            //REVISIT: better handling of exceptions
+        }
+        return null;
+    }
+
+    public void readWrapper(ObjectMessageContext objCtx, boolean isOutBound, Node input) {
+        try {
+            QName wrapperName;
+            if (isOutBound) {
+                wrapperName = callback.getOperationInfo().getResponseWrapperQName();
+            } else {
+                wrapperName = callback.getOperationInfo().getRequestWrapperQName();
+            }
+
+            Node nd = input.getFirstChild();
+            while (nd != null
+                && !wrapperName.getNamespaceURI().equals(nd.getNamespaceURI())
+                && !wrapperName.getLocalPart().equals(nd.getLocalName())) {
+                nd = nd.getNextSibling();
+            }
+
+            //REVISIT - This is SUCH a HACK.  This needs to be done with StAX or something
+            //a bit better than streaming and reparsing
+            InputStream in = getNodeStream(nd);
+            XMLInputFactory staxFactory = XMLInputFactory.newInstance(
+                "javax.xml.stream.XMLInputFactory", getClass().getClassLoader());
+            XMLStreamReader reader = staxFactory.createXMLStreamReader(in);
+
+            XMLStreamReader2XMLDocument transformer = new XMLStreamReader2XMLDocument();
+            TransformationContext context = new TransformationContextImpl();
+            DataType<QName> binding = new DataType<QName>(DataObject.class, null);
+            binding.setMetadata(TypeHelper.class.getName(), callback.getTypeHelper());
+            context.setTargetDataType(binding);
+            XMLDocument document = transformer.transform(reader, context);
+
+            //boolean isWrapped = true;
+            Object[] objects = toObjects(document, true);
+
+            if (callback.hasInOut()) {
+                //REVISIT - inOuts
+            } else {
+                if (isOutBound) {
+                    objCtx.setReturn(objects[0]);
+                } else {
+                    objCtx.setMessageObjects(objects);
+                }
+            }
+        } catch (Exception e) {
+            //REVISIT: better handling of exceptions
+        }
+    }
+
+    /**
+     * Convert a typed DataObject to Java objects
+     *
+     * @param document
+     * @param isWrapped
+     * @return the array of Objects from the DataObject
+     */
+    public static Object[] toObjects(XMLDocument document, boolean isWrapped) {
+        DataObject dataObject = document.getRootObject();
+        if (isWrapped) {
+            List ips = dataObject.getInstanceProperties();
+            Object[] os = new Object[ips.size()];
+            for (int i = 0; i < ips.size(); i++) {
+                os[i] = dataObject.get((Property) ips.get(i));
+            }
+            return os;
+        } else {
+            Object object = dataObject;
+            Type type = dataObject.getType();
+            if (type.isSequenced()) {
+                object = dataObject.getSequence().getValue(0);
+            }
+            return new Object[]{object};
+        }
+    }
+
+    byte[] getNodeBytes(Node node)
+        throws ClassCastException, ClassNotFoundException, InstantiationException, IllegalAccessException {
+
+        //This is also a hack, the JDK should already have this set, but it doesn't
+        DOMImplementationRegistry registry = DOMImplementationRegistry.newInstance();
+        if (registry == null) {
+            System.setProperty(PROPERTY, "com.sun.org.apache.xerces.internal.dom.DOMImplementationSourceImpl");
+            registry = DOMImplementationRegistry.newInstance();
+        }
+        DOMImplementationLS impl = (DOMImplementationLS) registry.getDOMImplementation("LS");
+        if (impl == null) {
+            System.setProperty(PROPERTY, "com.sun.org.apache.xerces.internal.dom.DOMImplementationSourceImpl");
+            registry = DOMImplementationRegistry.newInstance();
+            impl = (DOMImplementationLS) registry.getDOMImplementation("LS");
+        }
+        LSOutput output = impl.createLSOutput();
+        ByteArrayOutputStream bout = new ByteArrayOutputStream();
+        output.setByteStream(bout);
+        LSSerializer writer = impl.createLSSerializer();
+        writer.write(node, output);
+
+        return bout.toByteArray();
+    }
+
+    InputStream getNodeStream(Node node)
+        throws ClassCastException, ClassNotFoundException,
+               InstantiationException, IllegalAccessException {
+
+        DOMImplementationRegistry registry = DOMImplementationRegistry.newInstance();
+        if (registry == null) {
+            //This is also a hack, the JDK should already have this set, but it doesn't
+            System.setProperty(PROPERTY, "com.sun.org.apache.xerces.internal.dom.DOMImplementationSourceImpl");
+            registry = DOMImplementationRegistry.newInstance();
+        }
+        DOMImplementationLS impl = (DOMImplementationLS) registry.getDOMImplementation("LS");
+        if (impl == null) {
+            System.setProperty(PROPERTY, "com.sun.org.apache.xerces.internal.dom.DOMImplementationSourceImpl");
+            registry = DOMImplementationRegistry.newInstance();
+            impl = (DOMImplementationLS) registry.getDOMImplementation("LS");
+        }
+        LSOutput output = impl.createLSOutput();
+        RawByteArrayOutputStream bout = new RawByteArrayOutputStream();
+        output.setByteStream(bout);
+        LSSerializer writer = impl.createLSSerializer();
+        writer.write(node, output);
+
+        return new ByteArrayInputStream(bout.getBytes(), 0, bout.size());
+    }
+
+}