diff options
Diffstat (limited to 'sca-java-2.x/tags/2.0.1-RC1/modules/databinding-sdo-axiom/src/main/java/org/apache/tuscany')
4 files changed, 382 insertions, 0 deletions
diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/databinding-sdo-axiom/src/main/java/org/apache/tuscany/sca/databinding/sdo2om/AxiomHelper.java b/sca-java-2.x/tags/2.0.1-RC1/modules/databinding-sdo-axiom/src/main/java/org/apache/tuscany/sca/databinding/sdo2om/AxiomHelper.java new file mode 100644 index 0000000000..02f43000b4 --- /dev/null +++ b/sca-java-2.x/tags/2.0.1-RC1/modules/databinding-sdo-axiom/src/main/java/org/apache/tuscany/sca/databinding/sdo2om/AxiomHelper.java @@ -0,0 +1,142 @@ +/* + * 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.sdo2om; + +import javax.xml.namespace.QName; + +import org.apache.axiom.om.OMAbstractFactory; +import org.apache.axiom.om.OMDataSource; +import org.apache.axiom.om.OMElement; +import org.apache.axiom.om.OMFactory; +import org.apache.axiom.om.OMNamespace; +import org.apache.axiom.om.OMXMLParserWrapper; +import org.apache.axiom.om.impl.builder.StAXBuilder; +import org.apache.tuscany.sca.databinding.TransformationContext; +import org.apache.tuscany.sca.interfacedef.DataType; +import org.apache.tuscany.sca.interfacedef.util.XMLType; + +/** + * Helper for AXIOM + * + * @version $Rev$ $Date$ + */ +public class AxiomHelper { + private static final String DEFAULT_PREFIX = "_ns_"; + + private AxiomHelper() { + } + + /** + * See http://issues.apache.org/jira/browse/WSCOMMONS-240 + * @param om + */ + public static void completeAndClose(OMElement om) { + // Get the builder associated with the om element + OMXMLParserWrapper builder = om.getBuilder(); + if (builder != null) { + if (builder instanceof StAXBuilder) { + ((StAXBuilder)builder).releaseParserOnClose(true); + } + OMElement document = builder.getDocumentElement(); + if (document != null) { + document.build(); + } + } + if (builder instanceof StAXBuilder) { + ((StAXBuilder)builder).close(); + } + } + + /** + * This method will close the builder immediately. Any subsequent Axiom objects won't + * be built or accessible. + */ + public static void closeImmediately(OMElement om) { + // Get the builder associated with the om element + OMXMLParserWrapper builder = om.getBuilder(); + if (builder != null) { + if (builder instanceof StAXBuilder) { + ((StAXBuilder)builder).releaseParserOnClose(true); + ((StAXBuilder)builder).close(); + } + // builder.close(); + } + } + + /** + * @param context + * @param element + */ + public static void adjustElementName(TransformationContext context, OMElement element) { + if (context != null) { + DataType dataType = context.getTargetDataType(); + Object logical = dataType == null ? null : dataType.getLogical(); + if (!(logical instanceof XMLType)) { + return; + } + XMLType xmlType = (XMLType)logical; + if (xmlType.isElement() && !xmlType.getElementName().equals(element.getQName())) { + // FIXME:: Throw exception or switch to the new Element? + OMFactory factory = OMAbstractFactory.getOMFactory(); + QName name = xmlType.getElementName(); + OMNamespace namespace = factory.createOMNamespace(name.getNamespaceURI(), name.getPrefix()); + element.setNamespace(namespace); + element.setLocalName(name.getLocalPart()); + } + } + } + + public static OMElement createOMElement(OMFactory factory, QName element) { + String localName = element.getLocalPart(); + OMNamespace ns = createOMNamespace(factory, element); + + return factory.createOMElement(localName, ns); + + } + + public static OMElement createOMElement(OMFactory factory, QName element, OMDataSource dataSource) { + String localName = element.getLocalPart(); + OMNamespace ns = createOMNamespace(factory, element); + + return factory.createOMElement(dataSource, localName, ns); + + } + + /** + * @param factory + * @param name + * @return + */ + public static OMNamespace createOMNamespace(OMFactory factory, QName name) { + String namespaceURI = name.getNamespaceURI(); + String prefix = name.getPrefix(); + + OMNamespace ns = null; + if (namespaceURI.length() != 0) { + // Qualified Element: we need an OMNamespace + if (prefix.length() == 0) { + // The prefix does not appear to be specified, let's create one + prefix = DEFAULT_PREFIX; + } + ns = factory.createOMNamespace(namespaceURI, prefix); + } + return ns; + } +} diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/databinding-sdo-axiom/src/main/java/org/apache/tuscany/sca/databinding/sdo2om/DataObject2OMElement.java b/sca-java-2.x/tags/2.0.1-RC1/modules/databinding-sdo-axiom/src/main/java/org/apache/tuscany/sca/databinding/sdo2om/DataObject2OMElement.java new file mode 100644 index 0000000000..d306290245 --- /dev/null +++ b/sca-java-2.x/tags/2.0.1-RC1/modules/databinding-sdo-axiom/src/main/java/org/apache/tuscany/sca/databinding/sdo2om/DataObject2OMElement.java @@ -0,0 +1,86 @@ +/* + * 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.sdo2om; + +import static org.apache.tuscany.sca.databinding.sdo.SDODataBinding.ROOT_ELEMENT; + +import javax.xml.namespace.QName; + +import org.apache.axiom.om.OMAbstractFactory; +import org.apache.axiom.om.OMElement; +import org.apache.axiom.om.OMFactory; +import org.apache.tuscany.sca.databinding.BaseTransformer; +import org.apache.tuscany.sca.databinding.PullTransformer; +import org.apache.tuscany.sca.databinding.TransformationContext; +import org.apache.tuscany.sca.databinding.sdo.SDOContextHelper; +import org.apache.tuscany.sca.interfacedef.DataType; +import org.apache.tuscany.sca.interfacedef.util.XMLType; + +import commonj.sdo.DataObject; +import commonj.sdo.helper.HelperContext; +import commonj.sdo.helper.XMLDocument; + +/** + * SDO DataObject --> AXIOM OMElement transformer + * + * @version $Rev$ $Date$ + */ +public class DataObject2OMElement extends BaseTransformer<DataObject, OMElement> implements + PullTransformer<DataObject, OMElement> { + + public OMElement transform(DataObject source, TransformationContext context) { + HelperContext helperContext = SDOContextHelper.getHelperContext(context, true); + OMFactory factory = OMAbstractFactory.getOMFactory(); + + QName name = ROOT_ELEMENT; + if (context != null) { + DataType dataType = context.getTargetDataType(); + Object logical = dataType == null ? null : dataType.getLogical(); + if (logical instanceof XMLType) { + XMLType xmlType = (XMLType)logical; + if (xmlType.isElement()) { + name = xmlType.getElementName(); + } + } + } + + XMLDocument document = helperContext.getXMLHelper().createDocument(source, + name.getNamespaceURI(), + name.getLocalPart()); + SDODataSource dataSource = new SDODataSource(document, helperContext); + OMElement element = AxiomHelper.createOMElement(factory, name, dataSource); + return element; + } + + @Override + protected Class<DataObject> getSourceType() { + return DataObject.class; + } + + @Override + protected Class<OMElement> getTargetType() { + return OMElement.class; + } + + @Override + public int getWeight() { + return 10; + } + +} diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/databinding-sdo-axiom/src/main/java/org/apache/tuscany/sca/databinding/sdo2om/SDODataSource.java b/sca-java-2.x/tags/2.0.1-RC1/modules/databinding-sdo-axiom/src/main/java/org/apache/tuscany/sca/databinding/sdo2om/SDODataSource.java new file mode 100644 index 0000000000..dc3c2610a4 --- /dev/null +++ b/sca-java-2.x/tags/2.0.1-RC1/modules/databinding-sdo-axiom/src/main/java/org/apache/tuscany/sca/databinding/sdo2om/SDODataSource.java @@ -0,0 +1,89 @@ +/* + * 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.sdo2om; + +import static org.apache.tuscany.sca.databinding.sdo.SDODataBinding.ROOT_ELEMENT; + +import java.io.IOException; +import java.io.OutputStream; +import java.io.Writer; + +import javax.xml.stream.XMLStreamException; +import javax.xml.stream.XMLStreamReader; +import javax.xml.stream.XMLStreamWriter; + +import org.apache.axiom.om.OMDataSource; +import org.apache.axiom.om.OMOutputFormat; +import org.apache.axiom.om.impl.serialize.StreamingOMSerializer; +import org.apache.tuscany.sdo.api.SDOUtil; +import org.apache.tuscany.sdo.api.XMLStreamHelper; + +import commonj.sdo.DataObject; +import commonj.sdo.helper.HelperContext; +import commonj.sdo.helper.XMLDocument; + +/** + * + * @version $Rev$ $Date$ + */ +public class SDODataSource implements OMDataSource { + private HelperContext helperContext; + private XMLDocument sourceDocument; + + public SDODataSource(XMLDocument source, HelperContext helperContext) { + this.sourceDocument = source; + this.helperContext = helperContext; + } + + public SDODataSource(DataObject obj, HelperContext helperContext) { + this.helperContext = helperContext; + this.sourceDocument = + helperContext.getXMLHelper().createDocument(obj, + ROOT_ELEMENT.getNamespaceURI(), + ROOT_ELEMENT.getLocalPart()); + } + + public XMLStreamReader getReader() throws XMLStreamException { + XMLStreamHelper streamHelper = SDOUtil.createXMLStreamHelper(helperContext); + return streamHelper.createXMLStreamReader(sourceDocument); + } + + public void serialize(XMLStreamWriter xmlWriter) throws XMLStreamException { + StreamingOMSerializer serializer = new StreamingOMSerializer(); + serializer.serialize(getReader(), xmlWriter); + } + + public void serialize(OutputStream output, OMOutputFormat format) throws XMLStreamException { + try { + helperContext.getXMLHelper().save(sourceDocument, output, null); + } catch (Exception e) { + throw new XMLStreamException(e); + } + } + + public void serialize(Writer writer, OMOutputFormat format) throws XMLStreamException { + try { + helperContext.getXMLHelper().save(sourceDocument, writer, null); + } catch (IOException e) { + throw new XMLStreamException(e); + } + } + +} diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/databinding-sdo-axiom/src/main/java/org/apache/tuscany/sca/databinding/sdo2om/XMLDocument2OMElement.java b/sca-java-2.x/tags/2.0.1-RC1/modules/databinding-sdo-axiom/src/main/java/org/apache/tuscany/sca/databinding/sdo2om/XMLDocument2OMElement.java new file mode 100644 index 0000000000..3a2391b41a --- /dev/null +++ b/sca-java-2.x/tags/2.0.1-RC1/modules/databinding-sdo-axiom/src/main/java/org/apache/tuscany/sca/databinding/sdo2om/XMLDocument2OMElement.java @@ -0,0 +1,65 @@ +/* + * 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.sdo2om; + +import javax.xml.namespace.QName; + +import org.apache.axiom.om.OMAbstractFactory; +import org.apache.axiom.om.OMElement; +import org.apache.axiom.om.OMFactory; +import org.apache.tuscany.sca.databinding.BaseTransformer; +import org.apache.tuscany.sca.databinding.PullTransformer; +import org.apache.tuscany.sca.databinding.TransformationContext; +import org.apache.tuscany.sca.databinding.sdo.SDOContextHelper; + +import commonj.sdo.helper.HelperContext; +import commonj.sdo.helper.XMLDocument; + +/** + * SDO XMLDocument --> AXIOM OMElement transformer + * @version $Rev$ $Date$ + */ +public class XMLDocument2OMElement extends BaseTransformer<XMLDocument, OMElement> implements + PullTransformer<XMLDocument, OMElement> { + + public OMElement transform(XMLDocument source, TransformationContext context) { + HelperContext helperContext = SDOContextHelper.getHelperContext(context, true); + SDODataSource dataSource = new SDODataSource(source, helperContext); + OMFactory factory = OMAbstractFactory.getOMFactory(); + QName name = new QName(source.getRootElementURI(), source.getRootElementName()); + OMElement element = AxiomHelper.createOMElement(factory, name, dataSource); + return element; + } + + @Override + protected Class<XMLDocument> getSourceType() { + return XMLDocument.class; + } + + @Override + protected Class<OMElement> getTargetType() { + return OMElement.class; + } + + @Override + public int getWeight() { + return 10; + } + +} |