diff options
Diffstat (limited to 'sca-java-2.x/tags/2.0-Beta2-RC1/modules/policy-wspolicy/src/main/java/org/apache/tuscany/sca/policy/wspolicy/xml/WSPolicyProcessor.java')
| -rw-r--r-- | sca-java-2.x/tags/2.0-Beta2-RC1/modules/policy-wspolicy/src/main/java/org/apache/tuscany/sca/policy/wspolicy/xml/WSPolicyProcessor.java | 180 |
1 files changed, 0 insertions, 180 deletions
diff --git a/sca-java-2.x/tags/2.0-Beta2-RC1/modules/policy-wspolicy/src/main/java/org/apache/tuscany/sca/policy/wspolicy/xml/WSPolicyProcessor.java b/sca-java-2.x/tags/2.0-Beta2-RC1/modules/policy-wspolicy/src/main/java/org/apache/tuscany/sca/policy/wspolicy/xml/WSPolicyProcessor.java deleted file mode 100644 index 48bf932c27..0000000000 --- a/sca-java-2.x/tags/2.0-Beta2-RC1/modules/policy-wspolicy/src/main/java/org/apache/tuscany/sca/policy/wspolicy/xml/WSPolicyProcessor.java +++ /dev/null @@ -1,180 +0,0 @@ -/* - * 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.policy.wspolicy.xml; - -import java.io.ByteArrayInputStream; -import java.io.ByteArrayOutputStream; -import java.util.ArrayList; -import java.util.List; - -import javax.xml.namespace.QName; -import javax.xml.stream.XMLInputFactory; -import javax.xml.stream.XMLOutputFactory; -import javax.xml.stream.XMLStreamException; -import javax.xml.stream.XMLStreamReader; -import javax.xml.stream.XMLStreamWriter; - -import org.apache.axiom.om.OMElement; -import org.apache.axiom.om.impl.builder.StAXOMBuilder; -import org.apache.neethi.Constants; -import org.apache.neethi.PolicyComponent; -import org.apache.neethi.PolicyEngine; -import org.apache.neethi.PolicyOperator; -import org.apache.tuscany.sca.common.xml.stax.reader.XMLDocumentStreamReader; -import org.apache.tuscany.sca.contribution.processor.BaseStAXArtifactProcessor; -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.processor.StAXAttributeProcessor; -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.policy.wspolicy.WSPolicy; - -/** - * Processor for handling xml models of PolicySet definitions - * - * @version $Rev$ $Date$ - */ -public class WSPolicyProcessor extends BaseStAXArtifactProcessor implements - StAXArtifactProcessor<WSPolicy> { - - protected ExtensionPointRegistry registry; - protected StAXArtifactProcessor<Object> extensionProcessor; - protected StAXAttributeProcessor<Object> extensionAttributeProcessor; - protected XMLInputFactory inputFactory; - protected XMLOutputFactory outputFactory; - - public WSPolicyProcessor(ExtensionPointRegistry registry, - StAXArtifactProcessor extensionProcessor, - StAXAttributeProcessor extensionAttributeProcessor) { - this.registry = registry; - this.extensionProcessor = extensionProcessor; - this.extensionAttributeProcessor = extensionAttributeProcessor; - - FactoryExtensionPoint modelFactories = registry.getExtensionPoint(FactoryExtensionPoint.class); - this.inputFactory = modelFactories.getFactory(XMLInputFactory.class); - this.outputFactory = modelFactories.getFactory(XMLOutputFactory.class); - } - - public QName getArtifactType() { - return WSPolicy.WS_POLICY_QNAME; - } - - public Class<WSPolicy> getModelType() { - return WSPolicy.class; - } - - public WSPolicy read(XMLStreamReader reader, ProcessorContext context) - throws ContributionReadException, XMLStreamException { - org.apache.neethi.Policy neethiPolicy = null; - XMLDocumentStreamReader doc = new XMLDocumentStreamReader(reader); - StAXOMBuilder builder = new StAXOMBuilder(doc); - OMElement element = builder.getDocumentElement(); - neethiPolicy = PolicyEngine.getPolicy(element); - - WSPolicy wsPolicy = new WSPolicy(); - wsPolicy.setNeethiPolicy(neethiPolicy); - - // normalize the neethi tree so we can easily identify - // the policy alternatives - neethiPolicy.normalize(true); - - // top-level children of ExactlyOne are policy alternatives so - // for each child create a policy model list and pull the - // policies out - for(Object alternative : neethiPolicy.getPolicyComponents()) { - List<Object> assertions = new ArrayList<Object>(); - readPolicyAssertions(assertions, (PolicyComponent)alternative, context); - wsPolicy.getPolicyAssertions().add(assertions); - } - - - return wsPolicy; - } - - private void readPolicyAssertions(List<Object> policyAssertions, PolicyComponent policyComponent, ProcessorContext context){ - - // recurse into the policy alternatives - // TODO - lots of todos here as this just walks down the neethi hierarchy - // looking for assertions to drive Tuscany processors without - // regard to the policy alternatives. Undecided about whether to - // commit to prepresenting this hierarchy in Tuscany or whether - // to rely on neethi - // Should this be in the builder? Not really as this drives the - // Tuscany specific readers - if (policyComponent.getType() != Constants.TYPE_ASSERTION){ - PolicyOperator policyOperator = (PolicyOperator)policyComponent; - for(Object childComponent : policyOperator.getPolicyComponents()){ - // TODO - create assertion hierarchy in wsPolicy model - // how we do this depends on if we continue to use neethi - readPolicyAssertions(policyAssertions, (PolicyComponent)childComponent, context); - } - } else { - try { - // TODO - not sure we should keep the neethi model but hack for the - // time being to get Tuscany processors to process the OMElements - // within the neethi model - ByteArrayOutputStream outputStream = new ByteArrayOutputStream(); - XMLStreamWriter writer = outputFactory.createXMLStreamWriter(outputStream); - - policyComponent.serialize(writer); - - ByteArrayInputStream inputStream = new ByteArrayInputStream(outputStream.toByteArray()); - XMLStreamReader reader = inputFactory.createXMLStreamReader(inputStream); - - Object neethiAssertion = policyComponent; - Object tuscanyAssertion = extensionProcessor.read(reader, context); - - if (tuscanyAssertion != null) { - policyAssertions.add(tuscanyAssertion); - } else { - // add neethi assertion - policyAssertions.add(neethiAssertion); - } - } catch (Exception ex) { - // TODO - report the error properly - ex.printStackTrace(); - } - } - } - - public void write(WSPolicy wsPolicy, XMLStreamWriter writer, ProcessorContext context) - throws ContributionWriteException, XMLStreamException { - - // Write an <sca:policySet> - writer.writeStartElement(WSPolicy.WS_POLICY_NS, WSPolicy.WS_POLICY); - - if (wsPolicy != null) { - wsPolicy.getNeethiPolicy().serialize(writer); - } - - writer.writeEndElement(); - } - - public void resolve(WSPolicy wsPolicy, ModelResolver resolver, ProcessorContext context) - throws ContributionResolveException { - - // resolve policy assertions - } - -} |