--- /dev/null
+/*-
+ * ============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.operationshistory;
+
+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.pip.StdMutablePIPResponse;
+import com.att.research.xacml.std.pip.StdPIPResponse;
+import com.google.common.base.Strings;
+
+import java.sql.Timestamp;
+import java.time.Instant;
+import java.time.temporal.ChronoUnit;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.Properties;
+
+import javax.persistence.Persistence;
+
+import org.onap.policy.pdp.xacml.application.common.ToscaDictionary;
+import org.onap.policy.pdp.xacml.application.common.std.StdOnapPip;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+
+public class CountRecentOperationsPip extends StdOnapPip {
+ public static final String ISSUER_NAME = "count-recent-operations";
+ private static Logger logger = LoggerFactory.getLogger(CountRecentOperationsPip.class);
+
+ public CountRecentOperationsPip() {
+ super();
+ }
+
+ @Override
+ public Collection<PIPRequest> attributesRequired() {
+ return Arrays.asList(PIP_REQUEST_ACTOR, PIP_REQUEST_RECIPE, PIP_REQUEST_TARGET);
+ }
+
+ @Override
+ public void configure(String id, Properties properties) throws PIPException {
+ super.configure(id, properties);
+ //
+ // Create our entity manager
+ //
+ em = null;
+ try {
+ //
+ // In case there are any overloaded properties for the JPA
+ //
+ Properties emProperties = new Properties(properties);
+ //
+ // Create the entity manager factory
+ //
+ em = Persistence.createEntityManagerFactory(
+ properties.getProperty(ISSUER_NAME + ".persistenceunit"),
+ emProperties).createEntityManager();
+ } catch (Exception e) {
+ logger.error("Persistence failed {} operations history db {}", e.getLocalizedMessage(), e);
+ }
+ }
+
+ /**
+ * getAttributes.
+ *
+ * @param pipRequest the request
+ * @param pipFinder the pip finder
+ * @return PIPResponse
+ */
+ @Override
+ public PIPResponse getAttributes(PIPRequest pipRequest, PIPFinder pipFinder) throws PIPException {
+ logger.debug("getAttributes requesting attribute {} of type {} for issuer {}",
+ pipRequest.getAttributeId(), pipRequest.getDataTypeId(), pipRequest.getIssuer());
+ //
+ // Determine if the issuer is correct
+ //
+ if (Strings.isNullOrEmpty(pipRequest.getIssuer())) {
+ logger.debug("issuer is null - returning empty response");
+ //
+ // We only respond to ourself as the issuer
+ //
+ return StdPIPResponse.PIP_RESPONSE_EMPTY;
+ }
+ if (! pipRequest.getIssuer().startsWith(ToscaDictionary.GUARD_ISSUER_PREFIX)) {
+ logger.debug("Issuer does not start with guard");
+ //
+ // We only respond to ourself as the issuer
+ //
+ return StdPIPResponse.PIP_RESPONSE_EMPTY;
+ }
+ //
+ // Parse out the issuer which denotes the time window
+ // Eg: any-prefix:tw:10:minute
+ //
+ String[] s1 = pipRequest.getIssuer().split("tw:");
+ String[] s2 = s1[1].split(":");
+ int timeWindowVal = Integer.parseInt(s2[0]);
+ String timeWindowScale = s2[1];
+ //
+ // Grab other attribute values
+ //
+ String actor = getAttribute(pipFinder, PIP_REQUEST_ACTOR);
+ String operation = getAttribute(pipFinder, PIP_REQUEST_RECIPE);
+ String target = getAttribute(pipFinder, PIP_REQUEST_TARGET);
+ String timeWindow = timeWindowVal + " " + timeWindowScale;
+ logger.info("Going to query DB about: actor {} operation {} target {} time window {}",
+ actor, operation, target, timeWindow);
+ //
+ // Sanity check
+ //
+ if (actor == null || operation == null || target == null) {
+ //
+ // See if we have all the values
+ //
+ logger.error("missing attributes return empty");
+ return StdPIPResponse.PIP_RESPONSE_EMPTY;
+ }
+ //
+ // Ok do the database query
+ //
+ long operationCount = doDatabaseQuery(actor, operation, target, timeWindowVal, timeWindowScale);
+ //
+ // Create and return PipResponse
+ //
+ StdMutablePIPResponse pipResponse = new StdMutablePIPResponse();
+ this.addLongAttribute(pipResponse,
+ XACML3.ID_ATTRIBUTE_CATEGORY_RESOURCE,
+ ToscaDictionary.ID_RESOURCE_GUARD_OPERATIONCOUNT,
+ operationCount,
+ pipRequest);
+ return new StdPIPResponse(pipResponse);
+ }
+
+ private long doDatabaseQuery(String actor, String operation, String target, int timeWindowVal,
+ String timeWindowScale) {
+ logger.info("Querying operations history for {} {} {} {} {}",
+ actor, operation, target, timeWindowVal, timeWindowScale);
+ //
+ // Only can query if we have an EntityManager
+ //
+ if (em == null) {
+ logger.error("No EntityManager available");
+ return -1;
+ }
+ //
+ // Do the query
+ //
+ try {
+ //
+ // We are expecting a single result
+ //
+ return em.createQuery("select count(e) from Dbao e"
+ + " where e.outcome<>'Failure_Guard'"
+ + " and e.actor= ?1"
+ + " and e.operation= ?2"
+ + " and e.target= ?3"
+ + " and e.endtime between"
+ + " ?4 and CURRENT_TIMESTAMP",
+ Long.class)
+ .setParameter(1, actor)
+ .setParameter(2, operation)
+ .setParameter(3, target)
+ .setParameter(4, Timestamp.from(Instant.now()
+ .minus(timeWindowVal,
+ stringToChronoUnit(timeWindowScale))))
+ .getSingleResult();
+ } catch (Exception e) {
+ logger.error("Typed query failed ", e);
+ return -1;
+ }
+ }
+
+ private ChronoUnit stringToChronoUnit(String scale) {
+ //
+ // Compute the time window
+ //
+ switch (scale.toLowerCase()) {
+ case "second":
+ return ChronoUnit.SECONDS;
+ case "minute":
+ return ChronoUnit.MINUTES;
+ case "hour":
+ return ChronoUnit.HOURS;
+ case "day":
+ return ChronoUnit.DAYS;
+ case "week":
+ return ChronoUnit.WEEKS;
+ case "month":
+ return ChronoUnit.MONTHS;
+ case "year":
+ return ChronoUnit.YEARS;
+ default:
+ //
+ // Unsupported
+ //
+ logger.error("Unsupported time window scale value {}", scale);
+ }
+ return null;
+ }
+
+}
Code Review / policy / xacml-pdp.git / blobdiff