diff options
Diffstat (limited to 'sca-java-2.x/trunk/modules/assembly-xml/src/main')
| -rw-r--r-- | sca-java-2.x/trunk/modules/assembly-xml/src/main/java/org/apache/tuscany/sca/assembly/xml/InterfaceContractProcessor.java | 370 |
1 files changed, 370 insertions, 0 deletions
diff --git a/sca-java-2.x/trunk/modules/assembly-xml/src/main/java/org/apache/tuscany/sca/assembly/xml/InterfaceContractProcessor.java b/sca-java-2.x/trunk/modules/assembly-xml/src/main/java/org/apache/tuscany/sca/assembly/xml/InterfaceContractProcessor.java new file mode 100644 index 0000000000..d1da967c4d --- /dev/null +++ b/sca-java-2.x/trunk/modules/assembly-xml/src/main/java/org/apache/tuscany/sca/assembly/xml/InterfaceContractProcessor.java @@ -0,0 +1,370 @@ +/*
+ * 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.assembly.xml;
+
+import static javax.xml.stream.XMLStreamConstants.END_ELEMENT;
+import static javax.xml.stream.XMLStreamConstants.START_ELEMENT;
+
+import java.io.IOException;
+import java.io.PrintStream;
+import java.util.ArrayList;
+import java.util.List;
+
+import javax.xml.namespace.QName;
+import javax.xml.stream.XMLStreamConstants;
+import javax.xml.stream.XMLStreamException;
+import javax.xml.stream.XMLStreamReader;
+import javax.xml.stream.XMLStreamWriter;
+
+import org.apache.tuscany.sca.contribution.processor.ContributionReadException;
+import org.apache.tuscany.sca.contribution.processor.ContributionResolveException;
+import org.apache.tuscany.sca.contribution.processor.ContributionWriteException;
+import org.apache.tuscany.sca.contribution.processor.ProcessorContext;
+import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor;
+import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.core.FactoryExtensionPoint;
+import org.apache.tuscany.sca.interfacedef.DataType;
+import org.apache.tuscany.sca.interfacedef.Interface;
+import org.apache.tuscany.sca.interfacedef.InterfaceContract;
+import org.apache.tuscany.sca.interfacedef.Operation;
+import org.apache.tuscany.sca.interfacedef.impl.DataTypeImpl;
+import org.apache.tuscany.sca.interfacedef.impl.InterfaceImpl;
+import org.apache.tuscany.sca.interfacedef.impl.OperationImpl;
+import org.apache.tuscany.sca.interfacedef.impl.TuscanyInterfaceContractImpl;
+import org.apache.tuscany.sca.interfacedef.util.XMLType;
+
+/**
+ * Processor for reading/writing the Tuscany interface model in order to
+ * support distributed interface matching
+ *
+ */
+public class InterfaceContractProcessor extends BaseAssemblyProcessor implements StAXArtifactProcessor<InterfaceContract>, Constants{
+
+ String INTERFACE_CONTRACT = "interfaceContract";
+ QName INTERFACE_CONTRACT_QNAME = new QName(SCA11_TUSCANY_NS, INTERFACE_CONTRACT);
+ String INTERFACE = "interface";
+ QName INTERFACE_QNAME = new QName(SCA11_TUSCANY_NS, INTERFACE);
+ String CALLBACK_INTERFACE = "callbackInterface";
+ QName CALLBACK_INTERFACE_QNAME = new QName(SCA11_TUSCANY_NS, CALLBACK_INTERFACE);
+ String OPERATION = "operation";
+ QName OPERATION_QNAME = new QName(SCA11_TUSCANY_NS, OPERATION);
+ String INPUT = "input";
+ QName INPUT_QNAME = new QName(SCA11_TUSCANY_NS, INPUT);
+ String OUTPUT = "output";
+ QName OUTPUT_QNAME = new QName(SCA11_TUSCANY_NS, OUTPUT);
+ String FAULT = "fault";
+ QName FAULT_QNAME = new QName(SCA11_TUSCANY_NS, FAULT);
+ String DATATYPE = "dataType";
+ QName DATATYPE_QNAME = new QName(SCA11_TUSCANY_NS, DATATYPE);
+ String GENERIC = "generic";
+ QName GENERIC_QNAME = new QName(SCA11_TUSCANY_NS, GENERIC);
+ String LOGICAL_COLLECTION = "logicalCollection";
+ QName LOGICAL_COLLECTION_QNAME = new QName(SCA11_TUSCANY_NS, LOGICAL_COLLECTION);
+ String LOGICAL_XMLTYPE = "logicalXMLType";
+ QName LOGICAL_XMLTYPE_QNAME = new QName(SCA11_TUSCANY_NS, LOGICAL_XMLTYPE);
+ String LOGICAL_TYPE = "logicalType";
+ QName LOGICAL_TYPE_QNAME = new QName(SCA11_TUSCANY_NS, LOGICAL_TYPE);
+ String PHYSICAL = "physical";
+ QName PHYSICAL_QNAME = new QName(SCA11_TUSCANY_NS, PHYSICAL);
+ String XMLTYPE = "xmlType";
+ QName XMLTYPE_QNAME = new QName(SCA11_TUSCANY_NS, XMLTYPE);
+
+ String NO_TYPE = "NoType";
+
+ enum Iof {
+ UNSET,
+ INPUT,
+ OUTPUT,
+ FAULT
+ }
+
+ enum CharacterTarget {
+ UNSET,
+ GENERIC,
+ PHYSICAL,
+ XMLTYPE
+ }
+
+ public InterfaceContractProcessor(ExtensionPointRegistry registry) {
+ super(registry.getExtensionPoint(FactoryExtensionPoint.class),
+ null /*registry.getExtensionPoint(StAXArtifactProcessor.class)*/);
+ }
+
+ public InterfaceContract read(XMLStreamReader reader, ProcessorContext context) throws ContributionReadException, XMLStreamException {
+
+ TuscanyInterfaceContractImpl interfaceContract = new TuscanyInterfaceContractImpl();
+
+ try {
+ InterfaceImpl iface = null;
+ QName name = null;
+ Operation operation = null;
+ List<DataType> inputs = null;
+ List<DataType> outputs = null;
+ List<DataType> faults = null;
+ XMLType logicalXMLType = null;
+
+ Iof iof = Iof.UNSET;
+ CharacterTarget characterTarget = CharacterTarget.UNSET;
+
+ boolean logicalCollection = false;
+
+ DataType dataType = null;
+
+ while (reader.hasNext()) {
+ int event = reader.getEventType();
+
+ switch (event) {
+ case START_ELEMENT:
+ name = reader.getName();
+ if (INTERFACE_CONTRACT_QNAME.equals(name)){
+ } else if (INTERFACE_QNAME.equals(name)){
+ iface = new InterfaceImpl();
+ interfaceContract.setInterface(iface);
+ iface.setRemotable(getBoolean(reader, "isRemotable"));
+ } else if (CALLBACK_INTERFACE_QNAME.equals(name)){
+ iface = new InterfaceImpl();
+ interfaceContract.setCallbackInterface(iface);
+ iface.setRemotable(getBoolean(reader, "isRemotable"));
+ } else if (OPERATION_QNAME.equals(name)) {
+ operation = new OperationImpl();
+ iface.getOperations().add(operation);
+
+ operation.setName(getString(reader, "name"));
+ operation.setDynamic(getBoolean(reader, "isDynamic"));
+ operation.setNonBlocking(getBoolean(reader, "isNonBlocking"));
+ operation.setWrapperStyle(getBoolean(reader, "isWrapperStyle"));
+
+ inputs = new ArrayList<DataType>();
+ DataType inputType = new DataTypeImpl<List<DataType>>(null, null);
+ inputType.setLogical(inputs);
+ operation.setInputType(inputType);
+
+ outputs = new ArrayList<DataType>();
+ DataType outputType = new DataTypeImpl<List<DataType>>(null, null);
+ outputType.setLogical(outputs);
+ operation.setOutputType(outputType);
+
+ faults = new ArrayList<DataType>();
+ operation.setFaultTypes(faults);
+ } else if (INPUT_QNAME.equals(name)) {
+ iof = Iof.INPUT;
+ } else if (OUTPUT_QNAME.equals(name)) {
+ iof = Iof.OUTPUT;
+ } else if (FAULT_QNAME.equals(name)) {
+ iof = Iof.FAULT;
+ } else if (DATATYPE_QNAME.equals(name)){
+ DataType newDataType = new DataTypeImpl<XMLType>(null, null);
+ newDataType.setDataBinding(getString(reader, "dataBinding"));
+ if (logicalCollection) {
+ dataType.setLogical(newDataType);
+ dataType = newDataType;
+ } else if (iof == Iof.INPUT) {
+ inputs.add(newDataType);
+ dataType = newDataType;
+ } else if (iof == Iof.OUTPUT){
+ outputs.add(newDataType);
+ dataType = newDataType;
+ } else if (iof == Iof.FAULT){
+ faults.add(newDataType);
+ dataType = newDataType;
+ }
+ } else if (GENERIC_QNAME.equals(name)){
+ characterTarget = CharacterTarget.GENERIC;
+ } else if (PHYSICAL_QNAME.equals(name)){
+ characterTarget = CharacterTarget.PHYSICAL;
+ } else if (LOGICAL_COLLECTION_QNAME.equals(name)){
+ logicalCollection = true;
+ } else if (LOGICAL_XMLTYPE_QNAME.equals(name)){
+ characterTarget = CharacterTarget.XMLTYPE;
+ logicalXMLType = new XMLType(null, null);
+ dataType.setLogical(logicalXMLType);
+ } else if (LOGICAL_TYPE_QNAME.equals(name)){
+ // is this ever used?
+ } else if (XMLTYPE_QNAME.equals(name)){
+ // is this ever used?
+ } else {
+ System.out.println("Unexpected element " + name);
+ }
+ break;
+ case XMLStreamConstants.CHARACTERS:
+ if (characterTarget == CharacterTarget.GENERIC){
+ String generic = reader.getText();
+ // Not sure what to do with this as we may not have the actual type
+ } else if (characterTarget == CharacterTarget.PHYSICAL){
+ String physical = reader.getText();
+ // Not sure what to do with this as we may not have the actual type
+ } else if (characterTarget == CharacterTarget.XMLTYPE) {
+ String xmlType = reader.getText();
+ if (!xmlType.equals(NO_TYPE)){
+ int splitPoint = xmlType.indexOf("}");
+ String namespace = xmlType.substring(1, splitPoint);
+ String localname = xmlType.substring(splitPoint + 1);
+ QName typeName = new QName(namespace, localname);
+ logicalXMLType.setTypeName(typeName);
+ }
+ }
+ characterTarget = CharacterTarget.UNSET;
+ break;
+ case END_ELEMENT:
+ name = reader.getName();
+ if (INPUT_QNAME.equals(name) ||
+ OUTPUT_QNAME.equals(name) ||
+ FAULT_QNAME.equals(name)) {
+ iof = Iof.UNSET;
+ } else if (LOGICAL_COLLECTION_QNAME.equals(name)) {
+ logicalCollection = false;
+ }
+ }
+
+ // Read the next element
+ if (reader.hasNext()) {
+ reader.next();
+ }
+ }
+ } catch (XMLStreamException e) {
+ ContributionReadException ex = new ContributionReadException(e);
+ //error(monitor, "XMLStreamException", reader, ex);
+ }
+
+ return interfaceContract;
+ }
+
+ public void write(InterfaceContract interfaceContract, XMLStreamWriter writer, ProcessorContext context)
+ throws ContributionWriteException, XMLStreamException {
+
+ if (interfaceContract == null || interfaceContract.getInterface() == null) {
+ return;
+ }
+
+ writer.writeStartElement(Constants.SCA11_TUSCANY_NS, INTERFACE_CONTRACT);
+ writer.writeStartElement(Constants.SCA11_TUSCANY_NS, INTERFACE);
+ writeInterface(interfaceContract.getInterface(), writer, context);
+
+ if (interfaceContract.getCallbackInterface() != null){
+ writer.writeStartElement(Constants.SCA11_TUSCANY_NS, CALLBACK_INTERFACE);
+ writeInterface(interfaceContract.getCallbackInterface(), writer, context);
+ }
+ writer.writeEndElement();
+
+ }
+
+ private void writeInterface(Interface iface, XMLStreamWriter writer, ProcessorContext context) throws XMLStreamException {
+
+
+ writer.writeAttribute("isRemotable", String.valueOf(iface.isRemotable()));
+
+ for (Operation operation : iface.getOperations()){
+ writer.writeStartElement(Constants.SCA11_TUSCANY_NS, OPERATION);
+ writer.writeAttribute("name", operation.getName());
+ writer.writeAttribute("isDynamic", String.valueOf(operation.isDynamic()));
+ writer.writeAttribute("isNonBlocking", String.valueOf(operation.isNonBlocking()));
+ writer.writeAttribute("isWrapperStyle", String.valueOf(operation.isWrapperStyle()));
+
+ List<DataType> outputTypes = operation.getOutputType().getLogical();
+ List<DataType> inputTypes = operation.getInputType().getLogical();
+ List<DataType> faultTypes = operation.getFaultTypes();
+
+ if (operation.isWrapperStyle() && operation.getWrapper() != null) {
+ inputTypes = operation.getWrapper().getUnwrappedInputType().getLogical();
+ outputTypes = operation.getWrapper().getUnwrappedOutputType().getLogical();
+ }
+
+ writer.writeStartElement(Constants.SCA11_TUSCANY_NS, INPUT);
+ writeDataTypes(inputTypes, writer);
+ writer.writeEndElement();
+
+ writer.writeStartElement(Constants.SCA11_TUSCANY_NS, OUTPUT);
+ writeDataTypes(outputTypes, writer);
+ writer.writeEndElement();
+
+ writer.writeStartElement(Constants.SCA11_TUSCANY_NS, FAULT);
+ writeDataTypes(faultTypes, writer);
+ writer.writeEndElement();
+
+ writer.writeEndElement();
+ }
+ writer.writeEndElement();
+ }
+
+ private void writeDataTypes(List<DataType> dataTypes, XMLStreamWriter writer) throws XMLStreamException {
+ for(DataType dataType : dataTypes){
+ writeDataType(dataType, writer);
+ }
+ }
+
+ private void writeDataType(DataType<?> dataType, XMLStreamWriter writer) throws XMLStreamException {
+ writer.writeStartElement(Constants.SCA11_TUSCANY_NS, DATATYPE);
+ if (dataType.getDataBinding() != null){
+ writer.writeAttribute("dataBinding", dataType.getDataBinding());
+ }
+
+ if (dataType.getGenericType() != null){
+ writer.writeStartElement(Constants.SCA11_TUSCANY_NS, GENERIC);
+ writer.writeCharacters(dataType.getGenericType().toString());
+ writer.writeEndElement();
+ }
+
+ if (dataType.getLogical() instanceof DataType){
+ writer.writeStartElement(Constants.SCA11_TUSCANY_NS, LOGICAL_COLLECTION);
+ writeDataType((DataType<?>)dataType.getLogical(), writer);
+ } else if (dataType.getLogical() instanceof XMLType){
+ writer.writeStartElement(Constants.SCA11_TUSCANY_NS, LOGICAL_XMLTYPE);
+ writer.writeStartElement(Constants.SCA11_TUSCANY_NS, XMLTYPE);
+ XMLType xmlType = (XMLType)dataType.getLogical();
+ if (xmlType.getTypeName() != null){
+ writer.writeCharacters(xmlType.getTypeName().toString());
+ } else {
+ writer.writeCharacters("NoType");
+ }
+ writer.writeEndElement();
+ } else {
+ writer.writeStartElement(Constants.SCA11_TUSCANY_NS, LOGICAL_TYPE);
+ writer.writeCharacters(dataType.getLogical().toString());
+ }
+ writer.writeEndElement();
+
+ if (dataType.getPhysical() != null){
+ writer.writeStartElement(Constants.SCA11_TUSCANY_NS, PHYSICAL);
+ writer.writeCharacters(dataType.getPhysical().getName());
+ writer.writeEndElement();
+ }
+
+ writer.writeEndElement();
+
+ }
+
+ public void resolve(InterfaceContract interfaceContract, ModelResolver resolver, ProcessorContext context)
+ throws ContributionResolveException {
+ // do nothing
+ }
+
+ public QName getArtifactType() {
+ // these internal interface contracts aren't found in the composite file
+ return null;
+ }
+
+ public Class<InterfaceContract> getModelType() {
+ return InterfaceContract.class;
+ }
+
+}
+
+
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