+/*-
+ * ============LICENSE_START=======================================================
+ * Copyright (C) 2019 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.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.pdp.xacml.application.common.std;
+
+import com.att.research.xacml.api.Attribute;
+import com.att.research.xacml.api.AttributeValue;
+import com.att.research.xacml.api.Identifier;
+import com.att.research.xacml.api.XACML3;
+import com.att.research.xacml.api.pip.PIPException;
+import com.att.research.xacml.api.pip.PIPFinder;
+import com.att.research.xacml.api.pip.PIPRequest;
+import com.att.research.xacml.api.pip.PIPResponse;
+import com.att.research.xacml.std.StdMutableAttribute;
+import com.att.research.xacml.std.datatypes.DataTypes;
+import com.att.research.xacml.std.pip.StdMutablePIPResponse;
+import com.att.research.xacml.std.pip.StdPIPRequest;
+import com.att.research.xacml.std.pip.engines.StdConfigurableEngine;
+
+import java.math.BigInteger;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.Iterator;
+import java.util.Properties;
+
+import javax.persistence.EntityManager;
+
+import org.onap.policy.pdp.xacml.application.common.ToscaDictionary;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+
+public abstract class StdOnapPip extends StdConfigurableEngine {
+ protected static Logger logger = LoggerFactory.getLogger(StdOnapPip.class);
+
+ protected static final PIPRequest PIP_REQUEST_ACTOR = new StdPIPRequest(
+ XACML3.ID_ATTRIBUTE_CATEGORY_RESOURCE,
+ ToscaDictionary.ID_RESOURCE_GUARD_ACTOR,
+ XACML3.ID_DATATYPE_STRING);
+
+ protected static final PIPRequest PIP_REQUEST_RECIPE = new StdPIPRequest(
+ XACML3.ID_ATTRIBUTE_CATEGORY_RESOURCE,
+ ToscaDictionary.ID_RESOURCE_GUARD_RECIPE,
+ XACML3.ID_DATATYPE_STRING);
+
+ protected static final PIPRequest PIP_REQUEST_TARGET = new StdPIPRequest(
+ XACML3.ID_ATTRIBUTE_CATEGORY_RESOURCE,
+ ToscaDictionary.ID_RESOURCE_GUARD_TARGETID,
+ XACML3.ID_DATATYPE_STRING);
+
+ protected Properties properties;
+ protected EntityManager em;
+
+ public StdOnapPip() {
+ super();
+ }
+
+ @Override
+ public Collection<PIPRequest> attributesProvided() {
+ return Collections.emptyList();
+ }
+
+ @Override
+ public void configure(String id, Properties properties) throws PIPException {
+ super.configure(id, properties);
+ logger.debug("Configuring historyDb PIP {}", properties);
+ this.properties = properties;
+ }
+
+ protected String getAttribute(PIPFinder pipFinder, PIPRequest pipRequest) {
+ //
+ // Get the actor value
+ //
+ PIPResponse pipResponse = this.getAttribute(pipRequest, pipFinder);
+ if (pipResponse == null) {
+ logger.error("Need actor attribute which is not found");
+ return null;
+ }
+ //
+ // Find the actor
+ //
+ return findFirstAttributeValue(pipResponse);
+ }
+
+ protected PIPResponse getAttribute(PIPRequest pipRequest, PIPFinder pipFinder) {
+ PIPResponse pipResponse = null;
+ try {
+ pipResponse = pipFinder.getMatchingAttributes(pipRequest, this);
+ if (pipResponse.getStatus() != null && !pipResponse.getStatus().isOk()) {
+ if (logger.isInfoEnabled()) {
+ logger.info("get attribute error retrieving {}: {}", pipRequest.getAttributeId().stringValue(),
+ pipResponse.getStatus());
+ }
+ pipResponse = null;
+ }
+ if (pipResponse != null && pipResponse.getAttributes().isEmpty()) {
+ if (logger.isInfoEnabled()) {
+ logger.info("No value for {}", pipRequest.getAttributeId().stringValue());
+ }
+ pipResponse = null;
+ }
+ } catch (PIPException ex) {
+ logger.error("PIPException getting subject-id attribute: " + ex.getMessage(), ex);
+ }
+ return pipResponse;
+ }
+
+ protected String findFirstAttributeValue(PIPResponse pipResponse) {
+ for (Attribute attribute: pipResponse.getAttributes()) {
+ Iterator<AttributeValue<String>> iterAttributeValues = attribute.findValues(DataTypes.DT_STRING);
+ if (iterAttributeValues != null) {
+ while (iterAttributeValues.hasNext()) {
+ String value = iterAttributeValues.next().getValue();
+ if (value != null) {
+ return value;
+ }
+ }
+ }
+ }
+ return null;
+ }
+
+ protected void addIntegerAttribute(StdMutablePIPResponse stdPipResponse, Identifier category,
+ Identifier attributeId, int value, PIPRequest pipRequest) {
+ AttributeValue<BigInteger> attributeValue = null;
+ try {
+ attributeValue = DataTypes.DT_INTEGER.createAttributeValue(value);
+ } catch (Exception e) {
+ logger.error("Failed to convert {} to integer {}", value, e);
+ }
+ if (attributeValue != null) {
+ stdPipResponse.addAttribute(new StdMutableAttribute(category, attributeId, attributeValue,
+ pipRequest.getIssuer(), false));
+ }
+ }
+
+ protected void addLongAttribute(StdMutablePIPResponse stdPipResponse, Identifier category,
+ Identifier attributeId, long value, PIPRequest pipRequest) {
+ AttributeValue<BigInteger> attributeValue = null;
+ try {
+ attributeValue = DataTypes.DT_INTEGER.createAttributeValue(value);
+ } catch (Exception e) {
+ logger.error("Failed to convert {} to long {}", value, e);
+ }
+ if (attributeValue != null) {
+ stdPipResponse.addAttribute(new StdMutableAttribute(category, attributeId, attributeValue,
+ pipRequest.getIssuer(), false));
+ }
+ }
+
+ protected void addStringAttribute(StdMutablePIPResponse stdPipResponse, Identifier category, Identifier attributeId,
+ String value, PIPRequest pipRequest) {
+ AttributeValue<String> attributeValue = null;
+ try {
+ attributeValue = DataTypes.DT_STRING.createAttributeValue(value);
+ } catch (Exception ex) {
+ logger.error("Failed to convert {} to an AttributeValue<String>", value, ex);
+ }
+ if (attributeValue != null) {
+ stdPipResponse.addAttribute(new StdMutableAttribute(category, attributeId, attributeValue,
+ pipRequest.getIssuer(), false));
+ }
+ }
+
+}