Test decision from main entry
[policy/xacml-pdp.git] / applications / guard / src / test / java / org / onap / policy / xacml / pdp / application / guard / GuardPdpApplicationTest.java
index ae4193d..be0ee2d 100644 (file)
 package org.onap.policy.xacml.pdp.application.guard;
 
 import static org.assertj.core.api.Assertions.assertThat;
-import static org.assertj.core.api.Assertions.assertThatCode;
-
-import com.att.research.xacml.util.XACMLProperties;
-import com.google.common.io.Files;
-import com.google.gson.Gson;
 
 import java.io.File;
 import java.io.FileInputStream;
-import java.io.FileOutputStream;
+import java.io.FileNotFoundException;
+import java.io.IOException;
 import java.io.InputStream;
-import java.io.OutputStream;
-import java.nio.file.Path;
-import java.nio.file.Paths;
+import java.sql.Date;
+import java.time.Instant;
+import java.util.HashMap;
 import java.util.Iterator;
+import java.util.Map;
 import java.util.Properties;
 import java.util.ServiceLoader;
+import java.util.UUID;
+
+import javax.persistence.EntityManager;
+import javax.persistence.Persistence;
 
+import org.junit.AfterClass;
 import org.junit.Before;
+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.TextFileUtils;
 import org.onap.policy.models.decisions.concepts.DecisionRequest;
-import org.onap.policy.models.decisions.serialization.DecisionRequestMessageBodyHandler;
-import org.onap.policy.models.decisions.serialization.DecisionResponseMessageBodyHandler;
+import org.onap.policy.models.decisions.concepts.DecisionResponse;
+import org.onap.policy.models.tosca.authorative.concepts.ToscaPolicyTypeIdentifier;
+import org.onap.policy.pdp.xacml.application.common.OnapOperationsHistoryDbao;
+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.slf4j.Logger;
 import org.slf4j.LoggerFactory;
+import org.yaml.snakeyaml.Yaml;
 
+@FixMethodOrder(MethodSorters.NAME_ASCENDING)
 public class GuardPdpApplicationTest {
 
     private static final Logger LOGGER = LoggerFactory.getLogger(GuardPdpApplicationTest.class);
     private static Properties properties = new Properties();
     private static File propertiesFile;
     private static XacmlApplicationServiceProvider service;
-    private static DecisionRequest requestSinglePolicy;
-
-    private static Gson gsonDecisionRequest;
-    private static Gson gsonDecisionResponse;
+    private static DecisionRequest requestVfCount1;
+    private static DecisionRequest requestVfCount3;
+    private static DecisionRequest requestVfCount6;
+    private static StandardCoder gson = new StandardCoder();
+    private static EntityManager em;
+    private static final String DENY = "Deny";
+    private static final String PERMIT = "Permit";
 
     @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 {
+        LOGGER.info("Setting up class");
+        //
+        // Setup our temporary folder
+        //
+        XacmlPolicyUtils.FileCreator myCreator = (String filename) -> policyFolder.newFile(filename);
+        propertiesFile = XacmlPolicyUtils.copyXacmlPropertiesContents("src/test/resources/xacml.properties",
+                properties, myCreator);
+        //
+        // Load service
+        //
+        ServiceLoader<XacmlApplicationServiceProvider> applicationLoader =
+                ServiceLoader.load(XacmlApplicationServiceProvider.class);
+        //
+        // Find the guard service application and save for use in all the tests
+        //
+        StringBuilder strDump = new StringBuilder("Loaded applications:" + System.lineSeparator());
+        Iterator<XacmlApplicationServiceProvider> iterator = applicationLoader.iterator();
+        while (iterator.hasNext()) {
+            XacmlApplicationServiceProvider application = iterator.next();
+            //
+            // Is it our service?
+            //
+            if (application instanceof GuardPdpApplication) {
+                //
+                // 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(System.lineSeparator());
+        }
+        LOGGER.info("{}", strDump);
+        //
+        // Tell it to initialize based on the properties file
+        // we just built for it.
+        //
+        service.initialize(propertiesFile.toPath().getParent());
+        //
+        // Load Decision Requests
+        //
+        requestVfCount1 = gson.decode(
+                TextFileUtils.getTextFileAsString(
+                    "../../main/src/test/resources/decisions/decision.guard.vfCount.1.input.json"),
+                    DecisionRequest.class);
+        requestVfCount3 = gson.decode(
+                TextFileUtils.getTextFileAsString(
+                    "../../main/src/test/resources/decisions/decision.guard.vfCount.3.input.json"),
+                    DecisionRequest.class);
+        requestVfCount6 = gson.decode(
+                TextFileUtils.getTextFileAsString(
+                    "../../main/src/test/resources/decisions/decision.guard.vfCount.6.input.json"),
+                    DecisionRequest.class);
+        //
+        // Create EntityManager for manipulating DB
+        //
+        em = Persistence.createEntityManagerFactory(
+                GuardPdpApplicationTest.properties.getProperty("historydb.persistenceunit"), properties)
+                .createEntityManager();
+    }
+
+    /**
+     * Clears the database before each test.
+     *
+     */
     @Before
-    public void setUp() throws Exception {
+    public void startClean() throws Exception {
+        em.getTransaction().begin();
+        em.createQuery("DELETE FROM OnapOperationsHistoryDbao").executeUpdate();
+        em.getTransaction().commit();
+    }
+
+    /**
+     * Check that decision matches expectation.
+     *
+     * @param expected from the response
+     * @param response received
+     *
+     **/
+    public void checkDecision(String expected, DecisionResponse response) throws CoderException {
+        LOGGER.info("Looking for {} Decision", expected);
+        assertThat(response).isNotNull();
+        assertThat(response.getStatus()).isNotNull();
+        assertThat(response.getStatus()).isEqualTo(expected);
+        //
+        // Dump it out as Json
+        //
+        LOGGER.info(gson.encode(response));
+    }
 
+    /**
+     * Request a decision and check that it matches expectation.
+     *
+     * @param request to send to Xacml PDP
+     * @param expected from the response
+     *
+     **/
+    public void requestAndCheckDecision(DecisionRequest request, String expected) throws CoderException {
+        //
+        // Ask for a decision
+        //
+        DecisionResponse response = service.makeDecision(request);
+        //
+        // Check decision
+        //
+        checkDecision(expected, response);
     }
 
     @Test
-    public void testBasics() {
-        assertThatCode(() -> {
-            //
-            // Create our Gson builder
-            //
-            gsonDecisionRequest = new DecisionRequestMessageBodyHandler().getGson();
-            gsonDecisionResponse = new DecisionResponseMessageBodyHandler().getGson();
-            //
-            // Load Single Decision Request
+    public void test1Basics() throws CoderException, IOException {
+        LOGGER.info("**************** Running test1 ****************");
+        //
+        // Make sure there's an application name
+        //
+        assertThat(service.applicationName()).isNotEmpty();
+        //
+        // Decisions
+        //
+        assertThat(service.actionDecisionsSupported().size()).isEqualTo(1);
+        assertThat(service.actionDecisionsSupported()).contains("guard");
+        //
+        // Ensure it has the supported policy types and
+        // can support the correct policy types.
+        //
+        assertThat(service.supportedPolicyTypes()).isNotEmpty();
+        assertThat(service.supportedPolicyTypes().size()).isEqualTo(2);
+        assertThat(service.canSupportPolicyType(new ToscaPolicyTypeIdentifier(
+                "onap.policies.controlloop.guard.FrequencyLimiter", "1.0.0"))).isTrue();
+        assertThat(service.canSupportPolicyType(new ToscaPolicyTypeIdentifier(
+                "onap.policies.controlloop.guard.FrequencyLimiter", "1.0.1"))).isFalse();
+        assertThat(service.canSupportPolicyType(new ToscaPolicyTypeIdentifier(
+                "onap.policies.controlloop.guard.MinMax", "1.0.0"))).isTrue();
+        assertThat(service.canSupportPolicyType(new ToscaPolicyTypeIdentifier(
+                "onap.policies.controlloop.guard.MinMax", "1.0.1"))).isFalse();
+        assertThat(service.canSupportPolicyType(new ToscaPolicyTypeIdentifier("onap.foo", "1.0.1"))).isFalse();
+    }
+
+    @Test
+    public void test2NoPolicies() throws CoderException {
+        LOGGER.info("**************** Running test2 ****************");
+        requestAndCheckDecision(requestVfCount1,PERMIT);
+    }
+
+    @Test
+    public void test3FrequencyLimiter() throws CoderException, FileNotFoundException, IOException,
+        XacmlApplicationException {
+        LOGGER.info("**************** Running test3 ****************");
+        //
+        // Now load the vDNS frequency limiter Policy - make sure
+        // the pdp can support it and have it load
+        // into the PDP.
+        //
+        try (InputStream is = new FileInputStream("src/test/resources/vDNS.policy.guard.frequency.output.tosca.yaml")) {
             //
-            requestSinglePolicy = gsonDecisionRequest.fromJson(
-                    TextFileUtils
-                        .getTextFileAsString("../../main/src/test/resources/decisions/decision.single.input.json"),
-                        DecisionRequest.class);
+            // Have yaml parse it
             //
-            // Copy all the properties and root policies to the temporary folder
+            Yaml yaml = new Yaml();
+            Map<String, Object> toscaObject = yaml.load(is);
             //
-            try (InputStream is = new FileInputStream("src/test/resources/xacml.properties")) {
-                //
-                // Load it in
-                //
-                properties.load(is);
-                propertiesFile = policyFolder.newFile("xacml.properties");
-                //
-                // Copy the root policies
-                //
-                for (String root : XACMLProperties.getRootPolicyIDs(properties)) {
-                    //
-                    // Get a file
-                    //
-                    Path rootPath = Paths.get(properties.getProperty(root + ".file"));
-                    LOGGER.debug("Root file {} {}", rootPath, rootPath.getFileName());
-                    //
-                    // Construct new file name
-                    //
-                    File newRootPath = policyFolder.newFile(rootPath.getFileName().toString());
-                    //
-                    // Copy it
-                    //
-                    Files.copy(rootPath.toFile(), newRootPath);
-                    assertThat(newRootPath).exists();
-                    //
-                    // Point to where the new policy is in the temp dir
-                    //
-                    properties.setProperty(root + ".file", newRootPath.getAbsolutePath());
-                }
-                try (OutputStream os = new FileOutputStream(propertiesFile.getAbsolutePath())) {
-                    properties.store(os, "");
-                    assertThat(propertiesFile).exists();
-                }
-            }
+            // Load the policies
             //
-            // Load service
+            service.loadPolicies(toscaObject);
+        }
+        //
+        // Zero recent actions: should get permit
+        //
+        requestAndCheckDecision(requestVfCount1,PERMIT);
+        //
+        // Add entry into operations history DB
+        //
+        insertOperationEvent(requestVfCount1);
+        //
+        // Only one recent actions: should get permit
+        //
+        requestAndCheckDecision(requestVfCount1,PERMIT);
+        //
+        // Add entry into operations history DB
+        //
+        insertOperationEvent(requestVfCount1);
+        //
+        // Two recent actions, more than specified limit of 2: should get deny
+        //
+        requestAndCheckDecision(requestVfCount1,DENY);
+    }
+
+    @Test
+    public void test4MinMax() throws CoderException, FileNotFoundException, IOException, XacmlApplicationException {
+        LOGGER.info("**************** Running test4 ****************");
+        //
+        // Now load the vDNS min max Policy - make sure
+        // the pdp can support it and have it load
+        // into the PDP.
+        //
+        try (InputStream is = new FileInputStream("src/test/resources/vDNS.policy.guard.minmax.output.tosca.yaml")) {
             //
-            ServiceLoader<XacmlApplicationServiceProvider> applicationLoader =
-                    ServiceLoader.load(XacmlApplicationServiceProvider.class);
+            // Have yaml parse it
             //
-            // Iterate through them - I could store the object as
-            // XacmlApplicationServiceProvider pointer.
+            Yaml yaml = new Yaml();
+            Map<String, Object> toscaObject = yaml.load(is);
             //
-            // Try this later.
+            // Load the policies
             //
-            StringBuilder strDump = new StringBuilder("Loaded applications:" + System.lineSeparator());
-            Iterator<XacmlApplicationServiceProvider> iterator = applicationLoader.iterator();
-            while (iterator.hasNext()) {
-                XacmlApplicationServiceProvider application = iterator.next();
-                //
-                // Is it our service?
-                //
-                if (application instanceof GuardPdpApplication) {
-                    //
-                    // 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(System.lineSeparator());
-            }
-            LOGGER.debug("{}", strDump);
+            service.loadPolicies(toscaObject);
+        }
+        //
+        // vfcount=1 below min of 2: should get a Deny
+        //
+        requestAndCheckDecision(requestVfCount1, DENY);
+        //
+        // vfcount=3 between min of 2 and max of 5: should get a Permit
+        //
+        requestAndCheckDecision(requestVfCount3, PERMIT);
+        //
+        // vfcount=6 above max of 5: should get a Deny
+        //
+        requestAndCheckDecision(requestVfCount6,DENY);
+        //
+        // Add two entry into operations history DB
+        //
+        insertOperationEvent(requestVfCount1);
+        insertOperationEvent(requestVfCount1);
+        //
+        // vfcount=3 between min of 2 and max of 5, but 2 recent actions is above frequency limit: should get a Deny
+        //
+        requestAndCheckDecision(requestVfCount3, DENY);
+        //
+        // vfcount=6 above max of 5: should get a Deny
+        //
+        requestAndCheckDecision(requestVfCount6, DENY);
+    }
+
+    @Test
+    public void test5MissingFields() throws FileNotFoundException, IOException, XacmlApplicationException {
+        LOGGER.info("**************** Running test5 ****************");
+        //
+        // Most likely we would not get a policy with missing fields passed to
+        // us from the API. But in case that happens, or we decide that some fields
+        // will be optional due to re-working of how the XACML policies are built,
+        // let's add support in for that.
+        //
+        try (InputStream is = new FileInputStream("src/test/resources/guard.policy-minmax-missing-fields1.yaml")) {
             //
-            // Tell it to initialize based on the properties file
-            // we just built for it.
+            // Have yaml parse it
             //
-            service.initialize(propertiesFile.toPath().getParent());
+            Yaml yaml = new Yaml();
+            Map<String, Object> toscaObject = yaml.load(is);
             //
-            // Make sure there's an application name
+            // Load the policies
             //
-            assertThat(service.applicationName()).isNotEmpty();
+            service.loadPolicies(toscaObject);
             //
-            // Decisions
+            // We can create a DecisionRequest on the fly - no need
+            // to have it in the .json files
             //
-            assertThat(service.actionDecisionsSupported().size()).isEqualTo(1);
-            assertThat(service.actionDecisionsSupported()).contains("guard");
+            DecisionRequest request = new DecisionRequest();
+            request.setOnapName("JUnit");
+            request.setOnapComponent("test5MissingFields");
+            request.setRequestId(UUID.randomUUID().toString());
+            request.setAction("guard");
+            Map<String, Object> guard = new HashMap<>();
+            guard.put("actor", "FOO");
+            guard.put("recipe", "bar");
+            guard.put("vfCount", "4");
+            Map<String, Object> resource = new HashMap<>();
+            resource.put("guard", guard);
+            request.setResource(resource);
             //
-            // Ensure it has the supported policy types and
-            // can support the correct policy types.
+            // Ask for a decision - should get permit
             //
-            assertThat(service.supportedPolicyTypes()).isNotEmpty();
-            assertThat(service.supportedPolicyTypes().size()).isEqualTo(2);
-            assertThat(service.canSupportPolicyType("onap.policies.controlloop.guard.FrequencyLimiter", "1.0.0"))
-                .isTrue();
-            assertThat(service.canSupportPolicyType("onap.policies.controlloop.guard.FrequencyLimiter", "1.0.1"))
-                .isFalse();
-            assertThat(service.canSupportPolicyType("onap.policies.controlloop.guard.MinMax", "1.0.0")).isTrue();
-            assertThat(service.canSupportPolicyType("onap.policies.controlloop.guard.MinMax", "1.0.1")).isFalse();
-            assertThat(service.canSupportPolicyType("onap.foo", "1.0.1")).isFalse();
+            DecisionResponse response = service.makeDecision(request);
+            LOGGER.info("Looking for Permit Decision {}", response);
+            assertThat(response).isNotNull();
+            assertThat(response.getStatus()).isNotNull();
+            assertThat(response.getStatus()).isEqualTo("Permit");
             //
-            // Ensure it supports decisions
+            // Try a deny
             //
-            assertThat(service.actionDecisionsSupported()).contains("guard");
-        }).doesNotThrowAnyException();
+            guard.put("vfCount", "10");
+            resource.put("guard", guard);
+            request.setResource(resource);
+            response = service.makeDecision(request);
+            LOGGER.info("Looking for Deny Decision {}", response);
+            assertThat(response).isNotNull();
+            assertThat(response.getStatus()).isNotNull();
+            assertThat(response.getStatus()).isEqualTo("Deny");
+        }
+    }
+
+    @SuppressWarnings("unchecked")
+    private void insertOperationEvent(DecisionRequest request) {
+        //
+        // Get the properties
+        //
+        Map<String, Object> properties = (Map<String, Object>) request.getResource().get("guard");
+        assertThat(properties).isNotNull();
+        //
+        // Add an entry
+        //
+        OnapOperationsHistoryDbao newEntry = new OnapOperationsHistoryDbao();
+        newEntry.setActor(properties.get("actor").toString());
+        newEntry.setOperation(properties.get("recipe").toString());
+        newEntry.setClName(properties.get("clname").toString());
+        newEntry.setOutcome("SUCCESS");
+        newEntry.setStarttime(Date.from(Instant.now().minusMillis(20000)));
+        newEntry.setEndtime(Date.from(Instant.now()));
+        newEntry.setRequestId(UUID.randomUUID().toString());
+        newEntry.setTarget(properties.get("target").toString());
+        em.getTransaction().begin();
+        em.persist(newEntry);
+        em.getTransaction().commit();
+    }
+
+    @AfterClass
+    public static void cleanup() throws Exception {
+        em.close();
     }
 }