diff options
Diffstat (limited to 'branches/sca-android-r643746/modules/assembly-xml/src/main/java/org/apache/tuscany/sca/assembly/xml/PolicyAttachPointProcessor.java')
-rw-r--r-- | branches/sca-android-r643746/modules/assembly-xml/src/main/java/org/apache/tuscany/sca/assembly/xml/PolicyAttachPointProcessor.java | 263 |
1 files changed, 263 insertions, 0 deletions
diff --git a/branches/sca-android-r643746/modules/assembly-xml/src/main/java/org/apache/tuscany/sca/assembly/xml/PolicyAttachPointProcessor.java b/branches/sca-android-r643746/modules/assembly-xml/src/main/java/org/apache/tuscany/sca/assembly/xml/PolicyAttachPointProcessor.java new file mode 100644 index 0000000000..7fd642221b --- /dev/null +++ b/branches/sca-android-r643746/modules/assembly-xml/src/main/java/org/apache/tuscany/sca/assembly/xml/PolicyAttachPointProcessor.java @@ -0,0 +1,263 @@ +/*
+ * 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 java.util.ArrayList;
+import java.util.List;
+import java.util.StringTokenizer;
+
+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.Binding;
+import org.apache.tuscany.sca.contribution.processor.BaseStAXArtifactProcessor;
+import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
+import org.apache.tuscany.sca.interfacedef.Operation;
+import org.apache.tuscany.sca.policy.Intent;
+import org.apache.tuscany.sca.policy.IntentAttachPoint;
+import org.apache.tuscany.sca.policy.IntentAttachPointType;
+import org.apache.tuscany.sca.policy.PolicyFactory;
+import org.apache.tuscany.sca.policy.PolicySet;
+import org.apache.tuscany.sca.policy.PolicySetAttachPoint;
+
+public class PolicyAttachPointProcessor extends BaseStAXArtifactProcessor implements Constants {
+
+ private PolicyFactory policyFactory;
+
+ public PolicyAttachPointProcessor(PolicyFactory policyFactory) {
+ this.policyFactory = policyFactory;
+ }
+
+ /**
+ * Read policy intents associated with an operation.
+ * @param attachPoint
+ * @param operation
+ * @param reader
+ */
+ private void readIntents(Object attachPoint, Operation operation, XMLStreamReader reader) {
+ if (!(attachPoint instanceof IntentAttachPoint))
+ return;
+ IntentAttachPoint intentAttachPoint = (IntentAttachPoint)attachPoint;
+ String value = reader.getAttributeValue(null, REQUIRES);
+ if (value != null) {
+ List<Intent> requiredIntents = intentAttachPoint.getRequiredIntents();
+ for (StringTokenizer tokens = new StringTokenizer(value); tokens.hasMoreTokens();) {
+ QName qname = getQNameValue(reader, tokens.nextToken());
+ Intent intent = policyFactory.createIntent();
+ intent.setName(qname);
+ if (operation != null) {
+ //FIXME Don't we need to handle intent specification
+ // on an operation basis?
+ //intent.getOperations().add(operation);
+ }
+ requiredIntents.add(intent);
+ }
+ }
+ }
+
+ /**
+ * Reads policy intents and policy sets associated with an operation.
+ * @param attachPoint
+ * @param operation
+ * @param reader
+ */
+ public void readPolicies(Object attachPoint, Operation operation, XMLStreamReader reader) {
+ readIntents(attachPoint, operation, reader);
+ readPolicySets(attachPoint, operation, reader);
+ }
+
+ /**
+ * Reads policy intents and policy sets.
+ * @param attachPoint
+ * @param reader
+ */
+ public void readPolicies(Object attachPoint, XMLStreamReader reader) {
+ readPolicies(attachPoint, null, reader);
+ }
+
+ /**
+ * Reads policy sets associated with an operation.
+ * @param attachPoint
+ * @param operation
+ * @param reader
+ */
+ private void readPolicySets(Object attachPoint, Operation operation, XMLStreamReader reader) {
+ if (!(attachPoint instanceof PolicySetAttachPoint)) {
+ return;
+ }
+ PolicySetAttachPoint policySetAttachPoint = (PolicySetAttachPoint)attachPoint;
+ String value = reader.getAttributeValue(null, POLICY_SETS);
+ if (value != null) {
+ List<PolicySet> policySets = policySetAttachPoint.getPolicySets();
+ for (StringTokenizer tokens = new StringTokenizer(value); tokens.hasMoreTokens();) {
+ QName qname = getQNameValue(reader, tokens.nextToken());
+ PolicySet policySet = policyFactory.createPolicySet();
+ policySet.setName(qname);
+ if (operation != null) {
+ //FIXME Don't we need to handle policySet specification
+ // on an operation basis?
+ //policySet.getOperations().add(operation);
+ }
+ policySets.add(policySet);
+ }
+ }
+
+ value = reader.getAttributeValue(SCA10_TUSCANY_NS, APPLICABLE_POLICY_SETS);
+ if (value != null) {
+ List<PolicySet> applicablePolicySets = policySetAttachPoint.getApplicablePolicySets();
+ for (StringTokenizer tokens = new StringTokenizer(value); tokens.hasMoreTokens();) {
+ QName qname = getQNameValue(reader, tokens.nextToken());
+ PolicySet policySet = policyFactory.createPolicySet();
+ policySet.setName(qname);
+ if (operation != null) {
+ //FIXME Don't we need to handle policySet specification
+ // on an operation basis?
+ //policySet.getOperations().add(operation);
+ }
+ applicablePolicySets.add(policySet);
+ }
+ }
+ }
+
+ /**
+ * Write policies
+ * @param attachPoint
+ * @return
+ */
+ XAttr writePolicies(Object attachPoint) throws XMLStreamException {
+ return writePolicies(attachPoint, (Operation)null);
+ }
+
+ /**
+ * Write policies
+ * @param attachPoint
+ * @return
+ */
+ public void writePolicyAttributes(Object attachPoint, XMLStreamWriter writer) throws XMLStreamException {
+ writePolicyAttributes(attachPoint, (Operation)null, writer);
+ }
+
+ /**
+ * Write policies
+ * @param attachPoint
+ * @return
+ */
+ public void writePolicyPrefixes(Object attachPoint, XMLStreamWriter writer) throws XMLStreamException {
+ writePolicyPrefixes(attachPoint, (Operation)null, writer);
+ }
+
+ /**
+ * Write policies associated with an operation
+ * @param attachPoint
+ * @param operation
+ * @return
+ */
+ XAttr writePolicies(Object attachPoint, Operation operation) {
+ List<XAttr> attrs =new ArrayList<XAttr>();
+ attrs.add(writeIntents(attachPoint, operation));
+ attrs.add(writePolicySets(attachPoint, operation));
+ return new XAttr(null, attrs);
+ }
+
+ /**
+ * Write policies
+ * @param attachPoint
+ * @return
+ */
+ public void writePolicyAttributes(Object attachPoint, Operation operation, XMLStreamWriter writer) throws XMLStreamException {
+ XAttr attr = writePolicies(attachPoint, operation);
+ attr.write(writer);
+ }
+
+ /**
+ * Write policies
+ * @param attachPoint
+ * @return
+ */
+ public void writePolicyPrefixes(Object attachPoint, Operation operation, XMLStreamWriter writer) throws XMLStreamException {
+ XAttr attr = writePolicies(attachPoint, operation);
+ attr.writePrefix(writer);
+ }
+
+ /**
+ * Write policy intents associated with an operation.
+ * @param attachPoint
+ * @param operation
+ */
+ private XAttr writeIntents(Object attachPoint, Operation operation) {
+ if (!(attachPoint instanceof IntentAttachPoint)) {
+ return null;
+ }
+ IntentAttachPoint intentAttachPoint = (IntentAttachPoint)attachPoint;
+ List<QName> qnames = new ArrayList<QName>();
+ for (Intent intent: intentAttachPoint.getRequiredIntents()) {
+ qnames.add(intent.getName());
+ }
+ return new XAttr(Constants.REQUIRES, qnames);
+ }
+
+ /**
+ * Write policy sets associated with an operation.
+ * @param attachPoint
+ * @param operation
+ */
+ private XAttr writePolicySets(Object attachPoint, Operation operation) {
+ if (!(attachPoint instanceof PolicySetAttachPoint)) {
+ return null;
+ }
+ PolicySetAttachPoint policySetAttachPoint = (PolicySetAttachPoint)attachPoint;
+ List<QName> qnames = new ArrayList<QName>();
+ for (PolicySet policySet: policySetAttachPoint.getPolicySets()) {
+ qnames.add(policySet.getName());
+ }
+ return new XAttr(Constants.POLICY_SETS, qnames);
+ }
+
+ public void resolvePolicies(Object attachPoint, ModelResolver resolver) {
+ if ( attachPoint instanceof PolicySetAttachPoint ) {
+ PolicySetAttachPoint policySetAttachPoint = (PolicySetAttachPoint)attachPoint;
+
+ List<Intent> requiredIntents = new ArrayList<Intent>();
+ Intent resolvedIntent = null;
+
+ if ( policySetAttachPoint.getRequiredIntents() != null && policySetAttachPoint.getRequiredIntents().size() > 0 ) {
+ for ( Intent intent : policySetAttachPoint.getRequiredIntents() ) {
+ resolvedIntent = resolver.resolveModel(Intent.class, intent);
+ requiredIntents.add(resolvedIntent);
+ }
+ policySetAttachPoint.getRequiredIntents().clear();
+ policySetAttachPoint.getRequiredIntents().addAll(requiredIntents);
+ }
+
+ if ( policySetAttachPoint.getPolicySets() != null && policySetAttachPoint.getPolicySets().size() > 0 ) {
+ List<PolicySet> resolvedPolicySets = new ArrayList<PolicySet>();
+ PolicySet resolvedPolicySet = null;
+ for ( PolicySet policySet : policySetAttachPoint.getPolicySets() ) {
+ resolvedPolicySet = resolver.resolveModel(PolicySet.class, policySet);
+ resolvedPolicySets.add(resolvedPolicySet);
+ }
+ policySetAttachPoint.getPolicySets().clear();
+ policySetAttachPoint.getPolicySets().addAll(resolvedPolicySets);
+ }
+ }
+ }
+}
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