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Apache CXF example source code file (Intersector.java)
The Apache CXF Intersector.java source code/** * 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.cxf.ws.policy; import java.util.ArrayList; import java.util.Collection; import java.util.Iterator; import java.util.List; import org.apache.cxf.helpers.CastUtils; import org.apache.neethi.All; import org.apache.neethi.ExactlyOne; import org.apache.neethi.Policy; /** * This class contains methods dealing with policy intersection. * Intersection of two assertions, i.e. computation if a compatible assertion, * is domain specific and relies on AssertionBuilder.buildCompatible. * See Section 4.5 in http://www.w3.org/TR/2006/WD-ws-policy-20061117. */ public class Intersector { private AssertionBuilderRegistry assertionBuilderRegistry; private boolean strict; public Intersector(AssertionBuilderRegistry abr) { assertionBuilderRegistry = abr; strict = true; } public boolean isStrict() { return strict; } public void setStrict(boolean s) { strict = s; } boolean compatibleAssertions(PolicyAssertion a1, PolicyAssertion a2) { AssertionBuilder ab = assertionBuilderRegistry.get(a1.getName()); if (null == ab) { return false; } return null != ab.buildCompatible(a1, a2); } boolean compatibleAlternatives(Collection<PolicyAssertion> alt1, Collection<PolicyAssertion> alt2) { if (alt1.isEmpty() || alt2.isEmpty()) { return true; } if (strict) { for (PolicyAssertion a1 : alt1) { if (null == findCompatibleAssertion(a1, alt2)) { return false; } } for (PolicyAssertion a2 : alt2) { if (null == findCompatibleAssertion(a2, alt1)) { return false; } } return true; } // Lax intersection not supported as neethi does not support Ignorable yet. throw new UnsupportedOperationException("Lax intersection of assertions is not supported " + "because the Ignorable attribute is not supported."); } boolean compatiblePolicies(Policy p1, Policy p2) { Iterator i1 = p1.getAlternatives(); while (i1.hasNext()) { Collection<PolicyAssertion> alt1 = CastUtils.cast((Collection)i1.next(), PolicyAssertion.class); Iterator i2 = p2.getAlternatives(); while (i2.hasNext()) { Collection<PolicyAssertion> alt2 = CastUtils.cast((Collection)i2.next(), PolicyAssertion.class); if (compatibleAlternatives(alt1, alt2)) { return true; } } return false; } return true; } public PolicyAssertion intersect(PolicyAssertion a1, PolicyAssertion a2) { AssertionBuilder ab = assertionBuilderRegistry.get(a1.getName()); if (null == ab) { return null; } return ab.buildCompatible(a1, a2); } public Collection<PolicyAssertion> intersect(Collection Other Apache CXF examples (source code examples)Here is a short list of links related to this Apache CXF Intersector.java source code file: |
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