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+/*
+ * 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.binding.http.xml;
+
+import static javax.xml.stream.XMLStreamConstants.END_ELEMENT;
+import static javax.xml.stream.XMLStreamConstants.START_ELEMENT;
+
+import javax.xml.namespace.QName;
+import javax.xml.stream.XMLStreamException;
+import javax.xml.stream.XMLStreamReader;
+import javax.xml.stream.XMLStreamWriter;
+
+import org.apache.tuscany.sca.assembly.OperationSelector;
+import org.apache.tuscany.sca.assembly.WireFormat;
+import org.apache.tuscany.sca.assembly.xml.Constants;
+import org.apache.tuscany.sca.assembly.xml.PolicyAttachPointProcessor;
+import org.apache.tuscany.sca.binding.http.HTTPBinding;
+import org.apache.tuscany.sca.binding.http.HTTPBindingFactory;
+import org.apache.tuscany.sca.contribution.ModelFactoryExtensionPoint;
+import org.apache.tuscany.sca.contribution.processor.BaseStAXArtifactProcessor;
+import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor;
+import org.apache.tuscany.sca.contribution.processor.StAXAttributeProcessor;
+import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
+import org.apache.tuscany.sca.contribution.service.ContributionReadException;
+import org.apache.tuscany.sca.contribution.service.ContributionResolveException;
+import org.apache.tuscany.sca.contribution.service.ContributionWriteException;
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.monitor.Monitor;
+import org.apache.tuscany.sca.monitor.Problem;
+import org.apache.tuscany.sca.monitor.Problem.Severity;
+import org.apache.tuscany.sca.monitor.impl.ProblemImpl;
+import org.apache.tuscany.sca.policy.PolicyFactory;
+
+public class HTTPBindingProcessor extends BaseStAXArtifactProcessor implements StAXArtifactProcessor<HTTPBinding> {
+ private static final String BINDING_HTTP = "binding.http";
+ private static final QName BINDING_HTTP_QNAME = new QName(Constants.SCA10_TUSCANY_NS, BINDING_HTTP);
+
+ private static final String NAME = "name";
+ private static final String URI = "uri";
+
+ private HTTPBindingFactory httpBindingFactory;
+ private StAXArtifactProcessor<Object> extensionProcessor;
+ private StAXAttributeProcessor<Object> extensionAttributeProcessor;
+ private PolicyFactory policyFactory;
+ private PolicyAttachPointProcessor policyProcessor;
+ private Monitor monitor;
+
+ public HTTPBindingProcessor(ExtensionPointRegistry extensionPoints,
+ StAXArtifactProcessor extensionProcessor,
+ StAXAttributeProcessor extensionAttributeProcessor,
+ Monitor monitor) {
+ ModelFactoryExtensionPoint modelFactories = extensionPoints.getExtensionPoint(ModelFactoryExtensionPoint.class);
+ this.httpBindingFactory = modelFactories.getFactory(HTTPBindingFactory.class);
+ this.extensionProcessor = (StAXArtifactProcessor<Object>)extensionProcessor;
+ this.extensionAttributeProcessor = extensionAttributeProcessor;
+ this.policyFactory = modelFactories.getFactory(PolicyFactory.class);
+ this.policyProcessor = new PolicyAttachPointProcessor(policyFactory);
+ this.monitor = monitor;
+ }
+
+ public QName getArtifactType() {
+ return BINDING_HTTP_QNAME;
+ }
+
+ public Class<HTTPBinding> getModelType() {
+ return HTTPBinding.class;
+ }
+
+ public HTTPBinding read(XMLStreamReader reader) throws ContributionReadException, XMLStreamException {
+ HTTPBinding httpBinding = httpBindingFactory.createHTTPBinding();
+
+ // Read policies
+ policyProcessor.readPolicies(httpBinding, reader);
+
+ while(reader.hasNext()) {
+ QName elementName = null;
+ int event = reader.getEventType();
+ switch (event) {
+ case START_ELEMENT:
+ elementName = reader.getName();
+
+ if (BINDING_HTTP_QNAME.equals(elementName)) {
+ String name = getString(reader, NAME);
+ if(name != null) {
+ httpBinding.setName(name);
+ }
+
+ String uri = getURIString(reader, URI);
+ if (uri != null) {
+ httpBinding.setURI(uri);
+ }
+ } else {
+ // Read an extension element
+ Object extension = extensionProcessor.read(reader);
+ if (extension != null) {
+ if (extension instanceof WireFormat) {
+ httpBinding.setRequestWireFormat((WireFormat)extension);
+ } else if(extension instanceof OperationSelector) {
+ httpBinding.setOperationSelector((OperationSelector)extension);
+ }
+ }
+ }
+
+ }
+
+ if (event == END_ELEMENT && BINDING_HTTP_QNAME.equals(reader.getName())) {
+ break;
+ }
+
+ // Read the next element
+ if (reader.hasNext()) {
+ reader.next();
+ }
+ }
+
+ return httpBinding;
+ }
+
+ public void write(HTTPBinding httpBinding, XMLStreamWriter writer) throws ContributionWriteException, XMLStreamException {
+ writeStart(writer, BINDING_HTTP_QNAME.getNamespaceURI(), BINDING_HTTP_QNAME.getLocalPart());
+
+ //write policies
+ policyProcessor.writePolicyAttributes(httpBinding, writer);
+
+ // Write binding name
+ if (httpBinding.getName() != null) {
+ writer.writeAttribute(NAME, httpBinding.getName());
+ }
+
+ // Write binding URI
+ if (httpBinding.getURI() != null) {
+ writer.writeAttribute(URI, httpBinding.getURI());
+ }
+
+ if ( httpBinding.getRequestWireFormat() != null ) {
+ extensionProcessor.write(httpBinding.getRequestWireFormat(), writer);
+ }
+
+ if ( httpBinding.getOperationSelector() != null ) {
+ extensionProcessor.write(httpBinding.getOperationSelector(), writer);
+ }
+ writeEnd(writer);
+ }
+
+
+ public void resolve(HTTPBinding model, ModelResolver resolver) throws ContributionResolveException {
+ policyProcessor.resolvePolicies(model, resolver);
+ }
+
+ /**
+ * Report a error.
+ *
+ * @param problems
+ * @param message
+ * @param model
+ */
+ private void error(String message, Object model, Object... messageParameters) {
+ if (monitor != null) {
+ Problem problem = new ProblemImpl(this.getClass().getName(), "binding-http-validation-messages", Severity.ERROR, model, message, (Object[])messageParameters);
+ monitor.problem(problem);
+ }
+ }
+
+}