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-rw-r--r--sca-java-2.x/tags/2.0-M5-RC2/modules/builder/src/main/java/org/apache/tuscany/sca/builder/impl/PolicyAppliesToBuilderImpl.java171
1 files changed, 0 insertions, 171 deletions
diff --git a/sca-java-2.x/tags/2.0-M5-RC2/modules/builder/src/main/java/org/apache/tuscany/sca/builder/impl/PolicyAppliesToBuilderImpl.java b/sca-java-2.x/tags/2.0-M5-RC2/modules/builder/src/main/java/org/apache/tuscany/sca/builder/impl/PolicyAppliesToBuilderImpl.java
deleted file mode 100644
index 2417940b1c..0000000000
--- a/sca-java-2.x/tags/2.0-M5-RC2/modules/builder/src/main/java/org/apache/tuscany/sca/builder/impl/PolicyAppliesToBuilderImpl.java
+++ /dev/null
@@ -1,171 +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 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.core.ExtensionPointRegistry;
-import org.apache.tuscany.sca.policy.PolicySet;
-import org.apache.tuscany.sca.policy.PolicySubject;
-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 is 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";
- }
-
- public Composite build(Composite composite, BuilderContext context)
- throws CompositeBuilderException {
- try {
- // 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);
- }
- }
-
- private Composite checkAppliesTo(Document document, Map<PolicySet, List<PolicySubject>> appliesToSubjects, Composite composite, BuilderContext context) throws Exception {
- // look at policies recursively
- for (Component component : composite.getComponents()) {
- Implementation implementation = component.getImplementation();
- if (implementation instanceof Composite) {
- checkAppliesTo(document, appliesToSubjects, (Composite)implementation, context);
- }
- }
-
- for (Component component : composite.getComponents()) {
-
- for (ComponentService componentService : component.getServices()) {
- for (Endpoint ep : componentService.getEndpoints()) {
- if (ep.getBinding() instanceof PolicySubject) {
- checkAppliesToSubject(document, appliesToSubjects, composite, (PolicySubject)ep.getBinding(), ep.getPolicySets());
- }
- }
- }
-
- for (ComponentReference componentReference : component.getReferences()) {
- for (EndpointReference epr : componentReference.getEndpointReferences()) {
- if (epr.getBinding() instanceof PolicySubject) {
- checkAppliesToSubject(document, appliesToSubjects, composite, (PolicySubject)epr.getBinding(), epr.getPolicySets());
- }
- }
- }
-
- Implementation implementation = component.getImplementation();
- if (implementation != null &&
- implementation instanceof PolicySubject) {
- checkAppliesToSubject(document, appliesToSubjects, composite, implementation, implementation.getPolicySets());
- }
- }
-
- return composite;
- }
-
- /**
- * Checks that all the provided policy sets apply to the provided policy subject
- *
- * @param document
- * @param appliesToSubjects
- * @param policySubject
- * @param policySets
- * @return
- * @throws Exception
- */
- private void checkAppliesToSubject(Document document, Map<PolicySet, List<PolicySubject>> appliesToSubjects, Composite composite, PolicySubject policySubject, List<PolicySet> policySets) throws Exception {
- List<PolicySet> policySetsToRemove = new ArrayList<PolicySet>();
-
- for (PolicySet policySet : policySets){
- 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);
- subjects.add(subject);
- }
- }
- }
-
- if (subjects != null){
- if (!subjects.contains(policySubject)){
- policySetsToRemove.add(policySet);
- }
- }
-
- // TODO - If no "appliesTo" is provided does the policy set apply to
- // everything or nothing?
-
- }
-
- policySets.removeAll(policySetsToRemove);
- }
-}