Official Tuscany 2.0.1 Release

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@1530096 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 0 insertions, 288 deletions

diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/builder/src/main/java/org/apache/tuscany/sca/builder/impl/PolicyAppliesToBuilderImpl.java b/sca-java-2.x/tags/2.0.1-RC1/modules/builder/src/main/java/org/apache/tuscany/sca/builder/impl/PolicyAppliesToBuilderImpl.java
deleted file mode 100644
index 60b82b99f4..0000000000
--- a/sca-java-2.x/tags/2.0.1-RC1/modules/builder/src/main/java/org/apache/tuscany/sca/builder/impl/PolicyAppliesToBuilderImpl.java
+++ /dev/null
@@ -1,288 +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.builder.impl;
-
-
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-
-import javax.xml.xpath.XPathConstants;
-import javax.xml.xpath.XPathExpression;
-import javax.xml.xpath.XPathExpressionException;
-
-import org.apache.tuscany.sca.assembly.Component;
-import org.apache.tuscany.sca.assembly.ComponentReference;
-import org.apache.tuscany.sca.assembly.ComponentService;
-import org.apache.tuscany.sca.assembly.Composite;
-import org.apache.tuscany.sca.assembly.Endpoint;
-import org.apache.tuscany.sca.assembly.EndpointReference;
-import org.apache.tuscany.sca.assembly.Implementation;
-import org.apache.tuscany.sca.assembly.builder.BuilderContext;
-import org.apache.tuscany.sca.assembly.builder.CompositeBuilderException;
-
-import org.apache.tuscany.sca.context.CompositeContext;
-import org.apache.tuscany.sca.core.ExtensionPointRegistry;
-import org.apache.tuscany.sca.definitions.Definitions;
-import org.apache.tuscany.sca.policy.PolicySet;
-import org.apache.tuscany.sca.policy.PolicySubject;
-import org.apache.tuscany.sca.runtime.RuntimeComponent;
-import org.apache.tuscany.sca.runtime.RuntimeEndpointReference;
-import org.w3c.dom.Document;
-import org.w3c.dom.Node;
-import org.w3c.dom.NodeList;
-
-/**
- * A builder that checks that policy sets apply to the elements to which they are attached. 
- * Any that don't are removed. It first creates a DOM model for the composite so that the xpath
- * expression can be evaluated. For each element that holds a policy set it calculates the 
- * appliesTo nodes and checks that the current element is in the set. If not the policySet is
- * removed from the element   
- *
- * @version $Rev$ $Date$
- */
-public class PolicyAppliesToBuilderImpl extends PolicyAttachmentBuilderImpl {
-
-    public PolicyAppliesToBuilderImpl(ExtensionPointRegistry registry) {
-        super(registry);
-    }
-
-    public String getID() {
-        return "org.apache.tuscany.sca.policy.builder.PolicyAppliesToBuilder";
-    }
-
-    // Build the whole composite
-    public Composite build(Composite composite, BuilderContext context)
-        throws CompositeBuilderException {
-        try {
-
-	    Definitions definitions = context.getDefinitions();
-            if (definitions == null || (definitions.getPolicySets().isEmpty() && definitions.getExternalAttachments().isEmpty()) ) {
-                return composite;
-            }
-            // create a DOM for the Domain Composite Infoset
-            Document document = saveAsDOM(composite);
-            
-            // create a cache of evaluated node against each policy set so we don't
-            // have to keep evaluating policy sets that appear in multiple places
-            Map<PolicySet, List<PolicySubject>> appliesToSubjects = new HashMap<PolicySet, List<PolicySubject>>();
-            
-            // for all implementations, endpoint and endpoint references check that 
-            // the policy sets validly apply
-            return checkAppliesTo(document, appliesToSubjects, composite, context);
-           
-        } catch (Exception e) {
-            throw new CompositeBuilderException(e);
-        }
-    }
-    
-    // Build just an endpoint reference that has just been matched against an endpoint. This
-    // can often happen at runtime so the policy attachTo for a reference policy cannot
-    // be assessed at build time
-    // THIS DOESN'T HANDLE THE NESTED COMPOSITE CASE
-    public void build(EndpointReference epr) throws CompositeBuilderException {
-        try {
-            
-            // What we really need to be doing here is...
-            //
-            // - correct the composite model to add the service binding to the reference
-            // - turn the composite model into a DOM
-            // - apply the reference policy XPath and assess whether it appliesTo the binding
-            //
-            // I've had a go at making the code do that below. However there is some question
-            // about what the appliesTo field means and it's hard to get here from the 
-            // binder so until we sort out the appliesTo question this code isn't used
-                       
-            CompositeContext compositeContext = ((RuntimeComponent)epr.getComponent()).getComponentContext().getCompositeContext();
-            Composite domainComposite = compositeContext.getDomainComposite();
-            Definitions systemDefinitions = compositeContext.getSystemDefinitions();
-            
-            if (systemDefinitions == null || 
-                (systemDefinitions.getPolicySets().isEmpty() && 
-                 systemDefinitions.getExternalAttachments().isEmpty()) ) {
-                return;
-            }
-            
-            // temporarily add the endpoint binding to the reference model so that the
-            // XPath expression can be evaluated correctly
-            epr.getReference().getBindings().add(epr.getTargetEndpoint().getBinding());
-            
-            // create a DOM for the Domain Composite Infoset
-            Document document = saveAsDOM(domainComposite);
-            
-            // remove the binding again to retain the untainted model 
-            epr.getReference().getBindings().remove(epr.getTargetEndpoint().getBinding());
-            
-            // create a cache of evaluated node against each policy set so we don't
-            // have to keep evaluating policy sets that appear in multiple places
-            Map<PolicySet, List<PolicySubject>> appliesToSubjects = new HashMap<PolicySet, List<PolicySubject>>();
-            
-            // can we get the composite within which the erp is defined
-            
-            for (PolicySet ps : new ArrayList<PolicySet>(epr.getPolicySets()) ) {
-                // Check if this PolicySet applies to the binding, component reference, component, or composite. If not,
-                // remove it from the list of policy sets for this endpoint. 
-                if ( epr.getBinding() instanceof PolicySubject ) {
-                    if (isApplicableToSubject(document, appliesToSubjects, domainComposite, (PolicySubject)epr.getBinding(), ps))
-                        continue;
-                }
-                if (isApplicableToSubject(document, appliesToSubjects, domainComposite, epr.getReference(), ps))
-                    continue;
-                else if ( (epr.getReference().getInterfaceContract() != null) && 
-                          (isApplicableToSubject(document, appliesToSubjects, domainComposite, epr.getReference().getInterfaceContract().getInterface(), ps)))
-                    continue;
-                else if ( isApplicableToSubject(document, appliesToSubjects, domainComposite, epr.getComponent(), ps))
-                    continue;
-                else if ( isApplicableToSubject(document, appliesToSubjects, domainComposite, domainComposite, ps))
-                    continue;
-                else
-                    epr.getPolicySets().remove(ps);             
-            }
-          
-        } catch (Exception e) {
-            throw new CompositeBuilderException(e);
-        }
-    }    
-    
-    private Composite checkAppliesTo(Document document, Map<PolicySet, List<PolicySubject>> appliesToSubjects, Composite topComposite, BuilderContext context) throws Exception {
- 
-    	for ( Component component : topComposite.getComponents() ) {
-    		if ( component.getImplementation() instanceof Composite ) {
-    			Composite nested = (Composite) component.getImplementation();
-    			checkAppliesTo(saveAsDOM(nested),new HashMap<PolicySet, List<PolicySubject>>(), nested, context );
-    		}
-    	}
-
-    	for (Component component : topComposite.getComponents()) {
-
-    		for (ComponentService componentService : component.getServices()) {
-    	
-    			for (Endpoint ep : componentService.getEndpoints()) {  
-    				for ( PolicySet ps : new ArrayList<PolicySet>(ep.getPolicySets()) ) {
-    					// Check if this PolicySet applies to the binding, component service, interface, component, or composite. If not,
-    					// remove it from the list of policy sets for this endpoint. 
-    					if ( ep.getBinding() instanceof PolicySubject ) {
-    						if (isApplicableToSubject(document, appliesToSubjects, topComposite, (PolicySubject)ep.getBinding(), ps))
-    							continue;
-    					}
-    					
-    					if (isApplicableToSubject(document, appliesToSubjects, topComposite, componentService, ps))
-    						continue;
-    					else if ( (componentService.getInterfaceContract() != null ) && (isApplicableToSubject(document, appliesToSubjects, topComposite, componentService.getInterfaceContract().getInterface(), ps)))
-    						continue;
-    					else if ( isApplicableToSubject(document, appliesToSubjects, topComposite, component, ps))
-    						continue;
-    					else if ( isApplicableToSubject(document, appliesToSubjects, topComposite, topComposite, ps))
-    						continue;
-    					else
-    						ep.getPolicySets().remove(ps);
-    				}
-    			}
-    		}
-
-    		for (ComponentReference componentReference : component.getReferences()) {    			
-    			for (EndpointReference epr : componentReference.getEndpointReferences()) {
-    			    // don't process the EPR yet if it's not resolved
-                    if (epr.getStatus() == EndpointReference.Status.WIRED_TARGET_NOT_FOUND ||
-                        epr.getBinding() == null){ 
-                        continue;
-                    }
-                    
-    				for (PolicySet ps : new ArrayList<PolicySet>(epr.getPolicySets()) ) {
-                        // Check if this PolicySet applies to the binding, component reference, component, or composite. If not,
-                        // remove it from the list of policy sets for this endpoint. 
-    					if ( epr.getBinding() instanceof PolicySubject ) {
-    						if (isApplicableToSubject(document, appliesToSubjects, topComposite, (PolicySubject)epr.getBinding(), ps))
-    							continue;
-    					}
-    					if (isApplicableToSubject(document, appliesToSubjects, topComposite, componentReference, ps))
-    						continue;
-    					else if ( (componentReference.getInterfaceContract() != null) && (isApplicableToSubject(document, appliesToSubjects, topComposite, componentReference.getInterfaceContract().getInterface(), ps)))
-    						continue;
-    					else if ( isApplicableToSubject(document, appliesToSubjects, topComposite, component, ps))
-    						continue;
-    					else if ( isApplicableToSubject(document, appliesToSubjects, topComposite, topComposite, ps))
-    						continue;
-    					else
-    						epr.getPolicySets().remove(ps);    			
-    				}
-    			}
-    		}
-
-    		Implementation implementation = component.getImplementation();
-    		if (implementation != null && 
-    				implementation instanceof PolicySubject) {
-    			for ( PolicySet ps : new ArrayList<PolicySet>(implementation.getPolicySets())) {    		
-    				if (!isApplicableToSubject(document, appliesToSubjects, topComposite, implementation, ps))
-    					implementation.getPolicySets().remove(ps);
-    			}
-    		}
-    		
-    	}
-    	return topComposite;
-    }
-
-	/**
-     * Checks that the provided policy sets applies to the provided policy subject
-     * 
-     * @param document
-     * @param appliesToSubjects
-     * @param policySubject
-     * @param policySet
-     * @return
-	 * @throws XPathExpressionException    
-     */
-    private boolean isApplicableToSubject(Document document, Map<PolicySet, List<PolicySubject>> appliesToSubjects, Composite composite, PolicySubject policySubject, PolicySet policySet) throws XPathExpressionException {
-                  
-        List<PolicySubject> subjects = appliesToSubjects.get(policySet);
-            
-        if (subjects == null){
-        	XPathExpression appliesTo = policySet.getAppliesToXPathExpression();
-        	if (appliesTo != null) {
-        		NodeList nodes = (NodeList)appliesTo.evaluate(document, XPathConstants.NODESET);
-                    
-        		if (nodes.getLength() > 0){
-        			subjects = new ArrayList<PolicySubject>();
-        			appliesToSubjects.put(policySet, subjects);
-        		}
-                    
-        		for (int i = 0; i < nodes.getLength(); i++) {
-        			Node node = nodes.item(i);
-        			String index = getStructuralURI(node);
-        			PolicySubject subject = lookup(composite, index);
-        			if ( subject != null ) 
-        				subjects.add(subject);
-        		}
-        	}
-        }
-            
-        if (subjects != null){
-        	if (!subjects.contains(policySubject)){
-        		return false;
-        	} else {
-        		return true;
-        	}
-        } 
-        
-        return false;
-                   
-    }    
-}