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/*-
* ============LICENSE_START=======================================================
* ECOMP-TEST
* ================================================================================
* Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* Licensed 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.
* ============LICENSE_END=========================================================
*/
package org.openecomp.policy.pdp.test.conformance;
import java.net.URI;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import com.att.research.xacml.api.Attribute;
import com.att.research.xacml.api.AttributeValue;
import com.att.research.xacml.api.pdp.ScopeQualifier;
import com.att.research.xacml.api.pdp.ScopeResolver;
import com.att.research.xacml.api.pdp.ScopeResolverException;
import com.att.research.xacml.api.pdp.ScopeResolverResult;
import com.att.research.xacml.std.StdMutableAttribute;
import com.att.research.xacml.std.StdScopeResolverResult;
import com.att.research.xacml.std.StdStatus;
import com.att.research.xacml.std.StdStatusCode;
import com.att.research.xacml.std.datatypes.DataTypes;
/**
* ConformanceScopeResolver implements {@link com.att.research.xacml.pdp.ScopeResolver} for the conformance tests
* using a fixed set of hierarchical resources defined in a map.
*
* @version $Revision$
*/
public class ConformanceScopeResolver implements ScopeResolver {
private Log logger = LogFactory.getLog(ConformanceScopeResolver.class);
private Map<URI, List<URI>> mapIdentifierToChildren = new HashMap<URI,List<URI>>();
public ConformanceScopeResolver() {
}
public void add(URI identifierRoot, URI identifierChild) {
List<URI> listChildrenRoot = this.mapIdentifierToChildren.get(identifierRoot);
if (listChildrenRoot == null) {
listChildrenRoot = new ArrayList<URI>();
this.mapIdentifierToChildren.put(identifierRoot, listChildrenRoot);
}
listChildrenRoot.add(identifierChild);
}
private void addChildren(Attribute attributeResourceId, URI urnResourceIdValue, boolean bDescendants, List<Attribute> listAttributes) {
List<URI> listChildren = this.mapIdentifierToChildren.get(urnResourceIdValue);
if (listChildren != null) {
for (URI uriChild : listChildren) {
AttributeValue<URI> attributeValueURI = null;
try {
attributeValueURI = DataTypes.DT_ANYURI.createAttributeValue(uriChild);
if (attributeValueURI != null) {
listAttributes.add(new StdMutableAttribute(attributeResourceId.getCategory(), attributeResourceId.getAttributeId(), attributeValueURI, attributeResourceId.getIssuer(), attributeResourceId.getIncludeInResults()));
}
} catch (Exception ex) {
this.logger.error("Exception converting URI to an AttributeValue");
}
if (bDescendants) {
this.addChildren(attributeResourceId, uriChild, bDescendants, listAttributes);
}
}
}
}
private void addChildren(Attribute attributeResourceId, boolean bDescendants, List<Attribute> listAttributes) {
/*
* Iterate over the values that are URNs
*/
Iterator<AttributeValue<URI>> iterAttributeValueURNs = attributeResourceId.findValues(DataTypes.DT_ANYURI);
if (iterAttributeValueURNs != null) {
while (iterAttributeValueURNs.hasNext()) {
this.addChildren(attributeResourceId, iterAttributeValueURNs.next().getValue(), bDescendants, listAttributes);
}
}
}
@Override
public ScopeResolverResult resolveScope(Attribute attributeResourceId, ScopeQualifier scopeQualifier) throws ScopeResolverException {
List<Attribute> listAttributes = new ArrayList<Attribute>();
switch(scopeQualifier) {
case CHILDREN:
listAttributes.add(attributeResourceId);
this.addChildren(attributeResourceId, false, listAttributes);
break;
case DESCENDANTS:
listAttributes.add(attributeResourceId);
this.addChildren(attributeResourceId, true, listAttributes);
break;
case IMMEDIATE:
listAttributes.add(attributeResourceId);
break;
default:
this.logger.error("Unknown ScopeQualifier: " + scopeQualifier.name());
return new StdScopeResolverResult(new StdStatus(StdStatusCode.STATUS_CODE_SYNTAX_ERROR, "Unknown ScopeQualifier " + scopeQualifier.name()));
}
return new StdScopeResolverResult(listAttributes);
}
}
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