Package org.apache.tuscany.sca.policy

Examples of org.apache.tuscany.sca.policy.PolicySetAttachPoint

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        writer.writeEndElement();
    }

    public void resolve(EchoBinding echoBinding, ModelResolver resolver) throws ContributionResolveException {
        PolicySetAttachPoint policySetAttachPoint = (PolicySetAttachPoint)echoBinding;
        List<Intent> requiredIntents = new ArrayList<Intent>();
        Intent resolvedIntent = null;
        for ( Intent intent : policySetAttachPoint.getRequiredIntents() ) {
            resolvedIntent = resolver.resolveModel(Intent.class, intent);
            requiredIntents.add(resolvedIntent);
        }
        policySetAttachPoint.getRequiredIntents().clear();
        policySetAttachPoint.getRequiredIntents().addAll(requiredIntents);
       
        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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    public static PolicySet getPolicySet(Binding wsBinding, QName intentName) {
        PolicySet returnPolicySet = null;

        if (wsBinding instanceof PolicySetAttachPoint) {
            PolicySetAttachPoint policiedBinding = (PolicySetAttachPoint)wsBinding;
            for (PolicySet policySet : policiedBinding.getPolicySets()) {
                for (Intent intent : policySet.getProvidedIntents()) {
                    if (intent.getName().equals(intentName)) {
                        returnPolicySet = policySet;
                        break;
                    }
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                if (implementation.isUnresolved()) {
                    extensionProcessor.resolve(implementation, resolver);
                    if (!implementation.isUnresolved()) {
                        //resolve policies
                        if ( implementation instanceof PolicySetAttachPoint ) {
                            PolicySetAttachPoint policiedImpl = (PolicySetAttachPoint)implementation;
                            resolveIntents(policiedImpl.getRequiredIntents(), resolver);
                            PolicyValidationUtils.validateIntents(policiedImpl, policiedImpl.getType());
                           
                            resolvePolicySets(policiedImpl.getPolicySets(), resolver);
                            PolicyValidationUtils.validatePolicySets(policiedImpl);
                           
                            if ( implementation instanceof OperationsConfigurator ) {
                                OperationsConfigurator opsConfigurator = (OperationsConfigurator)implementation;
                                for ( ConfiguredOperation implOp : opsConfigurator.getConfiguredOperations() ) {
                                    resolveIntents(implOp.getRequiredIntents(), resolver);
                                    PolicyValidationUtils.validateIntents(implOp, policiedImpl.getType());
                                   
                                    resolvePolicySets(implOp.getPolicySets(), resolver);
                                    PolicyValidationUtils.validatePolicySets(implOp,
                                                                             policiedImpl.getType(),
                                                                             policiedImpl.getApplicablePolicySets());
                                }
                            }
                           
                            for ( Service service : implementation.getServices() ) {
                                resolveIntents(service.getRequiredIntents(), resolver);
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                        resolveIntents(policiedBinding.getRequiredIntents(), resolver);
                        PolicyValidationUtils.validateIntents(policiedBinding, policiedBinding.getType());
                    }
                   
                    if (binding instanceof PolicySetAttachPoint) {
                        PolicySetAttachPoint policiedBinding = (PolicySetAttachPoint)binding;
                        resolvePolicySets(policiedBinding.getPolicySets(), resolver);
                        //validate if attached policysets apply to the binding
                        resolvePolicySets(policiedBinding.getApplicablePolicySets(), resolver);
                        //inherit the applicable policysets from parent contract as whatever applies to that
                        //applies to the binding as well
                        addInheritedPolicySets(contract.getApplicablePolicySets(), policiedBinding.getApplicablePolicySets());
                        PolicyValidationUtils.validatePolicySets(policiedBinding);
                    }
                   
                    if (binding instanceof OperationsConfigurator) {
                        OperationsConfigurator opConfigurator = (OperationsConfigurator)binding;
                        for (ConfiguredOperation confOp : opConfigurator.getConfiguredOperations()) {
                            resolveIntents(confOp.getRequiredIntents(), resolver);
                            PolicyValidationUtils.validateIntents(confOp, ((PolicySetAttachPoint)binding).getType());
                           
                            resolvePolicySets(confOp.getPolicySets(), resolver);
                            resolvePolicySets(confOp.getApplicablePolicySets(), resolver);
                            //inherit the applicable policysets from parent binding as whatever applies to that
                            //applies to the binding as well
                            addInheritedPolicySets(((PolicySetAttachPoint)binding).getApplicablePolicySets(),
                                                   confOp.getApplicablePolicySets());
                            PolicyValidationUtils.validatePolicySets(confOp, ((PolicySetAttachPoint)binding).getType());
                        }
                    }
                }
   
                // Resolve callback bindings
                if (contract.getCallback() != null) {
                    resolveIntents(contract.getCallback().getRequiredIntents(), resolver);
                    resolvePolicySets(contract.getCallback().getPolicySets(), resolver);
                    resolvePolicySets(contract.getCallback().getApplicablePolicySets(), resolver);
                    //inherit the contract's policy intents and policysets
                    addInheritedPolicySets(contract.getApplicablePolicySets(), contract.getCallback().getApplicablePolicySets());
                   
                    for (int i = 0, n = contract.getCallback().getBindings().size(); i < n; i++) {
                        Binding binding = contract.getCallback().getBindings().get(i);
                        extensionProcessor.resolve(binding, resolver);
   
                        if (binding instanceof IntentAttachPoint) {
                            IntentAttachPoint policiedBinding = (IntentAttachPoint)binding;
                           
                            if ( policiedBinding.getType().isUnresolved() ) {
                                IntentAttachPointType resolved =
                                    resolver.resolveModel(IntentAttachPointType.class,
                                                          policiedBinding.getType());
                                policiedBinding.setType(resolved);
                            }
                           
                            resolveIntents(policiedBinding.getRequiredIntents(), resolver);
                            PolicyValidationUtils.validateIntents(policiedBinding, policiedBinding.getType());
                        }
                       
                        if (binding instanceof PolicySetAttachPoint) {
                            PolicySetAttachPoint policiedBinding = (PolicySetAttachPoint)binding;
                            resolvePolicySets(policiedBinding.getPolicySets(), resolver);
                            //validate if attached policysets apply to the binding
                            resolvePolicySets(policiedBinding.getApplicablePolicySets(), resolver);
                            //inherit the applicable policysets from parent contract as whatever applies to that
                            //applies to the binding as well
                            addInheritedPolicySets(contract.getApplicablePolicySets(), policiedBinding.getApplicablePolicySets());
                            PolicyValidationUtils.validatePolicySets(policiedBinding);
                        }
                       
                        if (binding instanceof OperationsConfigurator) {
                            OperationsConfigurator opConfigurator = (OperationsConfigurator)binding;
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    private void createPolicyHandlers() throws IllegalAccessException,
                                               InstantiationException,
                                               ClassNotFoundException {
        if (wsBinding instanceof PolicySetAttachPoint) {
            PolicySetAttachPoint policiedBinding = (PolicySetAttachPoint)wsBinding;
            PolicyHandler policyHandler = null;
           
            for (PolicySet policySet : policiedBinding.getPolicySets()) {
                policyHandler =
                    PolicyHandlerUtils.findPolicyHandler(policySet, policyHandlerClassnames);
               
                if (policyHandler != null) {
                    policyHandler.setApplicablePolicySet(policySet);
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                                                 List<PolicySet> inheritedApplicablePolicySets,
                                                 ModelResolver resolver) throws ContributionResolveException,
                                                                                 PolicyValidationException
                                                        {
        if ( implementation instanceof PolicySetAttachPoint ) {
            PolicySetAttachPoint policiedImpl = (PolicySetAttachPoint)implementation;
           
            policiedImpl.getApplicablePolicySets().addAll(inheritedApplicablePolicySets);
           
            resolveIntents(policiedImpl.getRequiredIntents(), resolver);
            PolicyValidationUtils.validateIntents(policiedImpl, policiedImpl.getType());
           
            resolvePolicySets(policiedImpl.getPolicySets(), resolver);
            resolvePolicySets(policiedImpl.getApplicablePolicySets(), resolver);
           
            PolicyValidationUtils.validatePolicySets(policiedImpl);
           
            if ( implementation instanceof OperationsConfigurator ) {
                for ( ConfiguredOperation implConfOp : ((OperationsConfigurator)implementation).getConfiguredOperations() ) {
                    resolveIntents(implConfOp.getRequiredIntents(), resolver);
                    PolicyValidationUtils.validateIntents(implConfOp, policiedImpl.getType());
                   
                    resolvePolicySets(implConfOp.getPolicySets(), resolver);
                    resolvePolicySets(implConfOp.getApplicablePolicySets(), resolver);
                    //add the inherited applicablePolicysets
                    addInheritedPolicySets(policiedImpl.getApplicablePolicySets(), implConfOp.getApplicablePolicySets());
                   
                    PolicyValidationUtils.validatePolicySets(implConfOp, policiedImpl.getType());
                   
                    PolicyComputationUtils.addDefaultPolicies(
                                            ((PolicySetAttachPoint)implementation).getRequiredIntents(),
                                            ((PolicySetAttachPoint)implementation).getPolicySets(),
                                            implConfOp.getRequiredIntents(),
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        return null;
    }

    private void createPolicyHandlers() throws IllegalAccessException, InstantiationException, ClassNotFoundException {
        if (wsBinding instanceof PolicySetAttachPoint) {
            PolicySetAttachPoint policiedBinding = (PolicySetAttachPoint)wsBinding;
            PolicyHandler policyHandler = null;
            for (PolicySet policySet : policiedBinding.getPolicySets()) {
                policyHandler = PolicyHandlerUtils.findPolicyHandler(policySet, policyHandlerClassnames);
                if (policyHandler != null) {
                    policyHandler.setApplicablePolicySet(policySet);
                    policyHandlerList.add(policyHandler);
                }
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    }
   
    public void computeImplementationIntentsAndPolicySets(Implementation implementation, Component parent) 
                                                                throws PolicyValidationException, PolicyComputationException {
        if ( implementation instanceof PolicySetAttachPoint ) {
            PolicySetAttachPoint policiedImplementation = (PolicySetAttachPoint)implementation;
            //since for an implementation the component has its policy intents and policysets its possible
            //that there are some intents there that does not constrain the implementation.. so prune
            List<Intent> prunedIntents = computeInheritableIntents(policiedImplementation.getType(),
                                                                   parent.getRequiredIntents());
            parent.getRequiredIntents().clear();
            parent.getRequiredIntents().addAll(prunedIntents);
            computeIntents(parent);
            trimInherentlyProvidedIntents(policiedImplementation.getType(),
                                          parent.getRequiredIntents());
           
            computeIntentsForOperations((OperationsConfigurator)parent,
                                        (IntentAttachPoint)implementation,
                                        parent.getRequiredIntents());
           
           
            List<PolicySet> prunedPolicySets = computeInheritablePolicySets(parent,
                                                                            policiedImplementation.getType(),
                                                                            parent.getPolicySets());
            parent.getPolicySets().clear();
            parent.getPolicySets().addAll(prunedPolicySets);
            computePolicySets(parent);
            computePolicySetsForOperations(parent,
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        }
    }
   
    private void determineApplicableImplementationPolicySets(Component component) throws PolicyComputationException {
        if ( component.getImplementation() instanceof PolicySetAttachPoint ) {
            PolicySetAttachPoint policiedImplementation = (PolicySetAttachPoint)component.getImplementation();
          
            //trim intents specified in operations.  First check for policysets specified on the operation
            //and then in the parent implementation
            if ( component instanceof OperationsConfigurator ) {
                OperationsConfigurator opConfigurator = (OperationsConfigurator)component;
               
                for ( ConfiguredOperation confOp : opConfigurator.getConfiguredOperations() ) {
                    trimProvidedIntents(confOp.getRequiredIntents(), confOp.getPolicySets());
                    trimProvidedIntents(confOp.getRequiredIntents(), component.getPolicySets());
                   
                    if (domainPolicySets != null) {
                        determineApplicableDomainPolicySets(component.getImplementation(),
                                                            confOp,
                                                            policiedImplementation.getType());
   
                        if (confOp.getRequiredIntents().size() > 0) {
                            new PolicyComputationException("The following are unfulfilled intents for operations configured in "
                                    + "component implementation - " + component.getName() + "\nUnfulfilled Intents = " +
                                    confOp.getRequiredIntents());
                        }
                    }
                }
            }
               
            trimProvidedIntents(component.getRequiredIntents(), component.getPolicySets());
               
            //determine additional policysets that match remaining intents
            //if there are intents that are not provided by any policy set throw a warning
            //TODO: resolved to domain policy registry and attach suitable policy sets to the implementation
            //...for now using the SCA Definitions instead of registry
            if ( domainPolicySets != null)  {
                determineApplicableDomainPolicySets(component,
                                                    component,
                                                    policiedImplementation.getType());
                                                   
                if (component.getRequiredIntents().size() > 0) {
                    throw new PolicyComputationException("The following are unfulfilled intents for component implementation - " + component
                        .getName() + "\nUnfulfilled Intents = " + component.getRequiredIntents());
                }
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    private void computePolicySets(Base parent,
                                   List<Binding> bindings,
                                   List<PolicySet> inheritedPolicySets) throws PolicyValidationException {
        for (Binding binding : bindings) {
            if ( binding instanceof PolicySetAttachPoint ) {
                PolicySetAttachPoint policiedBinding = (PolicySetAttachPoint)binding;
               
                List<PolicySet> prunedPolicySets = computeInheritablePolicySets(parent,
                                                                                policiedBinding.getType(),
                                                                                inheritedPolicySets);
                policiedBinding.getPolicySets().addAll(prunedPolicySets);
                computePolicySets(policiedBinding);
                computePolicySetsForOperations(parent, policiedBinding);

            }
        }
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