diff options
Diffstat (limited to 'branches/sca-android/tuscany-assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/PolicyComputer.java')
| -rw-r--r-- | branches/sca-android/tuscany-assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/PolicyComputer.java | 372 |
1 files changed, 0 insertions, 372 deletions
diff --git a/branches/sca-android/tuscany-assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/PolicyComputer.java b/branches/sca-android/tuscany-assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/PolicyComputer.java deleted file mode 100644 index 0e290865bd..0000000000 --- a/branches/sca-android/tuscany-assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/PolicyComputer.java +++ /dev/null @@ -1,372 +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.assembly.builder.impl;
-
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-
-import javax.xml.namespace.QName;
-
-import org.apache.tuscany.sca.assembly.ConfiguredOperation;
-import org.apache.tuscany.sca.assembly.OperationsConfigurator;
-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.PolicySet;
-import org.apache.tuscany.sca.policy.PolicySetAttachPoint;
-import org.apache.tuscany.sca.policy.ProfileIntent;
-import org.apache.tuscany.sca.policy.QualifiedIntent;
-import org.apache.tuscany.sca.policy.util.PolicyValidationException;
-import org.apache.tuscany.sca.policy.util.PolicyValidationUtils;
-
-/**
- * This class contains policy computation methods common to computing implementation and binding policies
- */
-public abstract class PolicyComputer {
-
- protected PolicyComputer() {
-
- }
-
- protected List<Intent> computeInheritableIntents(IntentAttachPointType attachPointType,
- List<Intent> inheritableIntents) throws PolicyValidationException {
- List<Intent> validInheritableIntents = new ArrayList<Intent>();
-
- //expand profile intents in inherited intents
- expandProfileIntents(inheritableIntents);
-
- //validate if inherited intent applies to the attachpoint (binding / implementation) and
- //only add such intents to the attachpoint (binding / implementation)
- for (Intent intent : inheritableIntents) {
- if ( !intent.isUnresolved() ) {
- for (QName constrained : intent.getConstrains()) {
- if ( PolicyValidationUtils.isConstrained(constrained, attachPointType)) {
- validInheritableIntents.add(intent);
- break;
- }
- }
- } else {
- throw new PolicyValidationException("Policy Intent '" + intent.getName() + "' is not defined in this domain");
- }
- }
-
- return validInheritableIntents;
- }
-
- protected void expandProfileIntents(List<Intent> intents) {
- List<Intent> expandedIntents = null;
- if ( intents.size() > 0 ) {
- expandedIntents = findAndExpandProfileIntents(intents);
- intents.clear();
- intents.addAll(expandedIntents);
- }
- }
-
- protected void normalizeIntents(IntentAttachPoint intentAttachPoint) {
- //expand profile intents specified in the attachpoint (binding / implementation)
- expandProfileIntents(intentAttachPoint.getRequiredIntents());
-
- //remove duplicates and ...
- //where qualified form of intent exists retain it and remove the qualifiable intent
- filterDuplicatesAndQualifiableIntents(intentAttachPoint);
- }
-
- protected void trimInherentlyProvidedIntents(IntentAttachPointType attachPointType, List<Intent>intents) {
- //exclude intents that are inherently supported by the
- //attachpoint-type (binding-type / implementation-type)
- List<Intent> requiredIntents = new ArrayList<Intent>(intents);
- for ( Intent intent : requiredIntents ) {
- if ( isProvidedInherently(attachPointType, intent) ) {
- intents.remove(intent);
- }
- }
- }
-
-
- protected void computeIntentsForOperations(IntentAttachPoint intentAttachPoint) throws PolicyValidationException {
- if ( intentAttachPoint instanceof OperationsConfigurator ) {
- computeIntentsForOperations((OperationsConfigurator)intentAttachPoint,
- intentAttachPoint,
- intentAttachPoint.getRequiredIntents());
- }
- }
-
- protected void computeIntentsForOperations(OperationsConfigurator opConfigurator,
- IntentAttachPoint intentAttachPoint,
- List<Intent> parentIntents) throws PolicyValidationException {
- IntentAttachPointType attachPointType = intentAttachPoint.getType();
-
- boolean found = false;
- for ( ConfiguredOperation confOp : opConfigurator.getConfiguredOperations() ) {
- //expand profile intents specified on operations
- expandProfileIntents(confOp.getRequiredIntents());
-
- //validateIntents(confOp, attachPointType);
-
- //add intents specified for parent intent attach point (binding / implementation)
- //wherever its not overridden in the operation
- Intent tempIntent = null;
- List<Intent> attachPointOpIntents = new ArrayList<Intent>();
- for (Intent anIntent : parentIntents) {
- found = false;
-
- tempIntent = anIntent;
- while ( tempIntent instanceof QualifiedIntent ) {
- tempIntent = ((QualifiedIntent)tempIntent).getQualifiableIntent();
- }
-
- for ( Intent opIntent : confOp.getRequiredIntents() ) {
- if ( opIntent.getName().getLocalPart().startsWith(tempIntent.getName().getLocalPart())) {
- found = true;
- break;
- }
- }
-
- if ( !found ) {
- attachPointOpIntents.add(anIntent);
- }
- }
-
- confOp.getRequiredIntents().addAll(attachPointOpIntents);
-
- //remove duplicates and ...
- //where qualified form of intent exists retain it and remove the qualifiable intent
- filterDuplicatesAndQualifiableIntents(confOp);
-
- //exclude intents that are inherently supported by the parent
- //attachpoint-type (binding-type / implementation-type)
- if ( attachPointType != null ) {
- List<Intent> requiredIntents = new ArrayList<Intent>(confOp.getRequiredIntents());
- for ( Intent intent : requiredIntents ) {
- if ( isProvidedInherently(attachPointType, intent) ) {
- confOp.getRequiredIntents().remove(intent);
- }
- }
- }
- }
- }
-
- protected List<PolicySet> computeInheritablePolicySets(List<PolicySet> inheritablePolicySets,
- List<PolicySet> applicablePolicySets)
- throws PolicyValidationException {
- List<PolicySet> validInheritablePolicySets = new ArrayList<PolicySet>();
- for (PolicySet policySet : inheritablePolicySets) {
- if ( !policySet.isUnresolved() ) {
- if ( applicablePolicySets.contains(policySet) ) {
- validInheritablePolicySets.add(policySet);
- }
- } else {
- throw new PolicyValidationException("Policy Set '" + policySet.getName()
- + "' is not defined in this domain ");
- }
- }
-
- return validInheritablePolicySets;
- }
-
- protected void normalizePolicySets(PolicySetAttachPoint policySetAttachPoint ) {
- //get rid of duplicate entries
- HashMap<QName, PolicySet> policySetTable = new HashMap<QName, PolicySet>();
- for ( PolicySet policySet : policySetAttachPoint.getPolicySets() ) {
- policySetTable.put(policySet.getName(), policySet);
- }
-
- policySetAttachPoint.getPolicySets().clear();
- policySetAttachPoint.getPolicySets().addAll(policySetTable.values());
-
- //expand profile intents
- for ( PolicySet policySet : policySetAttachPoint.getPolicySets() ) {
- expandProfileIntents(policySet.getProvidedIntents());
- }
- }
-
- protected void computePolicySetsForOperations(List<PolicySet> applicablePolicySets,
- PolicySetAttachPoint policySetAttachPoint)
- throws PolicyValidationException {
- if ( policySetAttachPoint instanceof OperationsConfigurator ) {
- computePolicySetsForOperations(applicablePolicySets,
- (OperationsConfigurator)policySetAttachPoint,
- policySetAttachPoint);
- }
-
- }
-
- protected void computePolicySetsForOperations(List<PolicySet> applicablePolicySets,
- OperationsConfigurator opConfigurator,
- PolicySetAttachPoint policySetAttachPoint)
- throws PolicyValidationException {
- //String appliesTo = null;
- //String scdlFragment = "";
- HashMap<QName, PolicySet> policySetTable = new HashMap<QName, PolicySet>();
- IntentAttachPointType attachPointType = policySetAttachPoint.getType();
-
- for ( ConfiguredOperation confOp : opConfigurator.getConfiguredOperations() ) {
- //validate policysets specified for the attachPoint
- for (PolicySet policySet : confOp.getPolicySets()) {
- if ( !policySet.isUnresolved() ) {
- //appliesTo = policySet.getAppliesTo();
-
- //if (!PolicyValidationUtils.isPolicySetApplicable(scdlFragment, appliesTo, attachPointType)) {
- if (!applicablePolicySets.contains(policySet)) {
- throw new PolicyValidationException("Policy Set '" + policySet.getName()
- + " specified for operation " + confOp.getName()
- + "' does not constrain extension type "
- + attachPointType.getName());
-
- }
- } else {
- throw new PolicyValidationException("Policy Set '" + policySet.getName()
- + " specified for operation " + confOp.getName()
- + "' is not defined in this domain ");
- }
- }
-
- //get rid of duplicate entries
- for ( PolicySet policySet : confOp.getPolicySets() ) {
- policySetTable.put(policySet.getName(), policySet);
- }
-
- confOp.getPolicySets().clear();
- confOp.getPolicySets().addAll(policySetTable.values());
- policySetTable.clear();
-
- //expand profile intents
- for ( PolicySet policySet : confOp.getPolicySets() ) {
- expandProfileIntents(policySet.getProvidedIntents());
- }
- }
- }
-
-
- protected void trimProvidedIntents(List<Intent> requiredIntents, List<PolicySet> policySets) {
- for ( PolicySet policySet : policySets ) {
- trimProvidedIntents(requiredIntents, policySet);
- }
- }
-
- protected void determineApplicableDomainPolicySets(List<PolicySet> applicablePolicySets,
- PolicySetAttachPoint policySetAttachPoint,
- IntentAttachPointType intentAttachPointType) {
-
- if (policySetAttachPoint.getRequiredIntents().size() > 0) {
- //since the set of applicable policysets for this attachpoint is known
- //we only need to check in that list if there is a policyset that matches
- for (PolicySet policySet : applicablePolicySets) {
- int prevSize = policySetAttachPoint.getRequiredIntents().size();
- trimProvidedIntents(policySetAttachPoint.getRequiredIntents(), policySet);
- // if any intent was trimmed off, then this policyset must
- // be attached to the intent attachpoint's policyset
- if (prevSize != policySetAttachPoint.getRequiredIntents().size()) {
- policySetAttachPoint.getPolicySets().add(policySet);
- }
- }
- }
- }
-
- private List<Intent> findAndExpandProfileIntents(List<Intent> intents) {
- List<Intent> expandedIntents = new ArrayList<Intent>();
- for ( Intent intent : intents ) {
- if ( intent instanceof ProfileIntent ) {
- ProfileIntent profileIntent = (ProfileIntent)intent;
- List<Intent> requiredIntents = profileIntent.getRequiredIntents();
- expandedIntents.addAll(findAndExpandProfileIntents(requiredIntents));
- } else {
- expandedIntents.add(intent);
- }
- }
- return expandedIntents;
- }
-
- private boolean isProvidedInherently(IntentAttachPointType attachPointType, Intent intent) {
- return ( attachPointType != null &&
- (( attachPointType.getAlwaysProvidedIntents() != null &&
- attachPointType.getAlwaysProvidedIntents().contains(intent) ) ||
- ( attachPointType.getMayProvideIntents() != null &&
- attachPointType.getMayProvideIntents().contains(intent) )
- ) );
- }
-
- private void trimProvidedIntents(List<Intent> requiredIntents, PolicySet policySet) {
- for ( Intent providedIntent : policySet.getProvidedIntents() ) {
- if ( requiredIntents.contains(providedIntent) ) {
- requiredIntents.remove(providedIntent);
- }
- }
-
- for ( Intent mappedIntent : policySet.getMappedPolicies().keySet() ) {
- if ( requiredIntents.contains(mappedIntent) ) {
- requiredIntents.remove(mappedIntent);
- }
- }
- }
-
- private void filterDuplicatesAndQualifiableIntents(IntentAttachPoint intentAttachPoint) {
- //remove duplicates
- Map<QName, Intent> intentsTable = new HashMap<QName, Intent>();
- for ( Intent intent : intentAttachPoint.getRequiredIntents() ) {
- intentsTable.put(intent.getName(), intent);
- }
-
- //where qualified form of intent exists retain it and remove the qualifiable intent
- Map<QName, Intent> intentsTableCopy = new HashMap<QName, Intent>(intentsTable);
- //if qualified form of intent exists remove the unqualified form
- for ( Intent intent : intentsTableCopy.values() ) {
- if ( intent instanceof QualifiedIntent ) {
- QualifiedIntent qualifiedIntent = (QualifiedIntent)intent;
- if ( intentsTable.get(qualifiedIntent.getQualifiableIntent().getName()) != null ) {
- intentsTable.remove(qualifiedIntent.getQualifiableIntent().getName());
- }
- }
- }
- intentAttachPoint.getRequiredIntents().clear();
- intentAttachPoint.getRequiredIntents().addAll(intentsTable.values());
- }
-
- private void validateIntents(ConfiguredOperation confOp, IntentAttachPointType attachPointType) throws PolicyValidationException {
- boolean found = false;
- if ( attachPointType != null ) {
- //validate intents specified against the parent (binding / implementation)
- found = false;
- for (Intent intent : confOp.getRequiredIntents()) {
- if ( !intent.isUnresolved() ) {
- for (QName constrained : intent.getConstrains()) {
- if (PolicyValidationUtils.isConstrained(constrained, attachPointType)) {
- found = true;
- break;
- }
- }
-
- if (!found) {
- throw new PolicyValidationException("Policy Intent '" + intent.getName()
- + " specified for operation " + confOp.getName()
- + "' does not constrain extension type "
- + attachPointType.getName());
- }
- } else {
- throw new PolicyValidationException("Policy Intent '" + intent.getName()
- + " specified for operation " + confOp.getName()
- + "' is not defined in this domain ");
- }
- }
- }
- }
-}
|