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/*-
* ============LICENSE_START=======================================================
* ONAP
* ================================================================================
* Copyright (C) 2019-2021 AT&T Intellectual Property. All rights reserved.
* Modifications Copyright (C) 2021 Nordix Foundation.
* ================================================================================
* 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.xacml.pdp.application.naming;
import static org.assertj.core.api.Assertions.assertThat;
import com.att.research.xacml.api.Response;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.Arrays;
import java.util.Collection;
import java.util.Iterator;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Properties;
import java.util.ServiceLoader;
import org.apache.commons.lang3.tuple.Pair;
import org.assertj.core.api.Condition;
import org.junit.BeforeClass;
import org.junit.ClassRule;
import org.junit.FixMethodOrder;
import org.junit.Test;
import org.junit.rules.TemporaryFolder;
import org.junit.runners.MethodSorters;
import org.onap.policy.common.utils.coder.CoderException;
import org.onap.policy.common.utils.coder.StandardCoder;
import org.onap.policy.common.utils.resources.ResourceUtils;
import org.onap.policy.common.utils.resources.TextFileUtils;
import org.onap.policy.models.decisions.concepts.DecisionRequest;
import org.onap.policy.models.decisions.concepts.DecisionResponse;
import org.onap.policy.models.tosca.authorative.concepts.ToscaConceptIdentifier;
import org.onap.policy.pdp.xacml.application.common.XacmlApplicationException;
import org.onap.policy.pdp.xacml.application.common.XacmlApplicationServiceProvider;
import org.onap.policy.pdp.xacml.application.common.XacmlPolicyUtils;
import org.onap.policy.pdp.xacml.xacmltest.TestUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@FixMethodOrder(MethodSorters.NAME_ASCENDING)
public class NamingPdpApplicationTest {
private static final Logger LOGGER = LoggerFactory.getLogger(NamingPdpApplicationTest.class);
private static Properties properties = new Properties();
private static File propertiesFile;
private static XacmlApplicationServiceProvider service;
private static StandardCoder gson = new StandardCoder();
private static DecisionRequest baseRequest;
@ClassRule
public static final TemporaryFolder policyFolder = new TemporaryFolder();
/**
* Copies the xacml.properties and policies files into
* temporary folder and loads the service provider saving
* instance of provider off for other tests to use.
*/
@BeforeClass
public static void setUp() throws Exception {
//
// Load Single Decision Request
//
baseRequest = gson.decode(
TextFileUtils
.getTextFileAsString(
"src/test/resources/decision.naming.input.json"),
DecisionRequest.class);
//
// Setup our temporary folder
//
XacmlPolicyUtils.FileCreator myCreator = (String filename) -> policyFolder.newFile(filename);
propertiesFile = XacmlPolicyUtils.copyXacmlPropertiesContents("src/test/resources/xacml.properties",
properties, myCreator);
//
// Copy the test policy types into data area
//
String policy = "onap.policies.Naming";
String policyType = ResourceUtils.getResourceAsString("policytypes/" + policy + ".yaml");
LOGGER.info("Copying {}", policyType);
Files.write(Paths.get(policyFolder.getRoot().getAbsolutePath(), policy + "-1.0.0.yaml"),
policyType.getBytes());
//
// Load service
//
ServiceLoader<XacmlApplicationServiceProvider> applicationLoader =
ServiceLoader.load(XacmlApplicationServiceProvider.class);
//
// Iterate through Xacml application services and find
// the optimization service. Save it for use throughout
// all the Junit tests.
//
StringBuilder strDump = new StringBuilder("Loaded applications:" + XacmlPolicyUtils.LINE_SEPARATOR);
Iterator<XacmlApplicationServiceProvider> iterator = applicationLoader.iterator();
while (iterator.hasNext()) {
XacmlApplicationServiceProvider application = iterator.next();
//
// Is it our service?
//
if (application instanceof NamingPdpApplication) {
//
// Should be the first and only one
//
assertThat(service).isNull();
service = application;
}
strDump.append(application.applicationName());
strDump.append(" supports ");
strDump.append(application.supportedPolicyTypes());
strDump.append(XacmlPolicyUtils.LINE_SEPARATOR);
}
LOGGER.debug("{}", strDump);
assertThat(service).isNotNull();
//
// Tell it to initialize based on the properties file
// we just built for it.
//
service.initialize(propertiesFile.toPath().getParent(), null);
}
@Test
public void test01Basics() {
//
// Make sure there's an application name
//
assertThat(service.applicationName()).isNotEmpty();
//
// Decisions
//
assertThat(service.actionDecisionsSupported().size()).isEqualTo(1);
assertThat(service.actionDecisionsSupported()).contains("naming");
//
// Ensure it has the supported policy types and
// can support the correct policy types.
//
assertThat(service.canSupportPolicyType(new ToscaConceptIdentifier(
"onap.policies.Naming", "1.0.0"))).isTrue();
assertThat(service.canSupportPolicyType(new ToscaConceptIdentifier(
"onap.foobar", "1.0.0"))).isFalse();
}
@Test
public void test02NoPolicies() throws CoderException {
//
// Ask for a decision when there are no policies loaded
//
LOGGER.info("Request {}", gson.encode(baseRequest));
Pair<DecisionResponse, Response> decision = service.makeDecision(baseRequest, null);
LOGGER.info("Decision {}", decision.getKey());
assertThat(decision.getKey()).isNotNull();
assertThat(decision.getKey().getPolicies()).isEmpty();
}
@Test
public void test03Naming() throws CoderException, FileNotFoundException, IOException,
XacmlApplicationException {
//
// Now load all the optimization policies
//
TestUtils.loadPolicies("policies/sdnc.policy.naming.input.tosca.yaml", service);
//
// Ask for a decision for available default policies
//
DecisionResponse response = makeDecision();
//
// There is no default policy
//
assertThat(response).isNotNull();
assertThat(response.getPolicies()).isEmpty();
//
// Ask for VNF
//
baseRequest.getResource().put("policy-type", Arrays.asList("onap.policies.Naming"));
//
// Ask for a decision for VNF default policies
//
response = makeDecision();
assertThat(response).isNotNull();
assertThat(response.getPolicies()).hasSize(1);
//
// Validate it
//
validateDecision(response, baseRequest);
}
private DecisionResponse makeDecision() {
Pair<DecisionResponse, Response> decision = service.makeDecision(baseRequest, null);
LOGGER.info("Request Resources {}", baseRequest.getResource());
LOGGER.info("Decision {}", decision.getKey());
for (Entry<String, Object> entrySet : decision.getKey().getPolicies().entrySet()) {
LOGGER.info("Policy {}", entrySet.getKey());
}
return decision.getKey();
}
@SuppressWarnings("unchecked")
private void validateDecision(DecisionResponse decision, DecisionRequest request) {
for (Entry<String, Object> entrySet : decision.getPolicies().entrySet()) {
LOGGER.info("Decision Returned Policy {}", entrySet.getKey());
assertThat(entrySet.getValue()).isInstanceOf(Map.class);
Map<String, Object> policyContents = (Map<String, Object>) entrySet.getValue();
assertThat(policyContents).containsKey("properties");
assertThat(policyContents.get("properties")).isInstanceOf(Map.class);
Map<String, Object> policyProperties = (Map<String, Object>) policyContents.get("properties");
validateMatchable((Collection<String>) request.getResource().get("nfRole"),
(Collection<String>) policyProperties.get("nfRole"));
validateMatchable((Collection<String>) request.getResource().get("naming-type"),
(Collection<String>) policyProperties.get("naming-type"));
validateMatchable((Collection<String>) request.getResource().get("property-name"),
(Collection<String>) policyProperties.get("property-name"));
}
}
private void validateMatchable(Collection<String> requestList, Collection<String> policyProperties) {
LOGGER.info("Validating matchable: {} with {}", policyProperties, requestList);
//
// Null or empty implies '*' - that is any value is acceptable
// for this policy.
//
if (policyProperties == null || policyProperties.isEmpty()) {
return;
}
Condition<String> condition = new Condition<>(
requestList::contains,
"Request list is contained");
assertThat(policyProperties).haveAtLeast(1, condition);
}
}
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