From bdd0a41aed7edf21ec2a65cfa17a86af2ef8c48a Mon Sep 17 00:00:00 2001 From: dims Date: Tue, 17 Jun 2008 00:23:01 +0000 Subject: Move Tuscany from Incubator to top level. git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@668359 13f79535-47bb-0310-9956-ffa450edef68 --- .../tuscany/binding/celtix/io/NodeDataReader.java | 205 +++++++++++++++++++++ 1 file changed, 205 insertions(+) create mode 100644 branches/sca-java-M2/sca/services/bindings/binding.celtix/src/main/java/org/apache/tuscany/binding/celtix/io/NodeDataReader.java (limited to 'branches/sca-java-M2/sca/services/bindings/binding.celtix/src/main/java/org/apache/tuscany/binding/celtix/io/NodeDataReader.java') diff --git a/branches/sca-java-M2/sca/services/bindings/binding.celtix/src/main/java/org/apache/tuscany/binding/celtix/io/NodeDataReader.java b/branches/sca-java-M2/sca/services/bindings/binding.celtix/src/main/java/org/apache/tuscany/binding/celtix/io/NodeDataReader.java new file mode 100644 index 0000000000..7a14ab33fc --- /dev/null +++ b/branches/sca-java-M2/sca/services/bindings/binding.celtix/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 { + + 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 binding = new DataType(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 binding = new DataType(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()); + } + +} -- cgit v1.2.3