Drools Controller upgrades Tests

Issue-ID: POLICY-1407
Signed-off-by: jhh <jorge.hernandez-herrero@att.com>
Change-Id: I6963fced5608b62a41b73fef5070c21cf45d6fbe
Signed-off-by: jhh <jorge.hernandez-herrero@att.com>

3 files changed, 208 insertions, 44 deletions

diff --git a/policy-core/src/main/java/org/onap/policy/drools/util/KieUtils.java b/policy-core/src/main/java/org/onap/policy/drools/util/KieUtils.java
index 5500d110..babc0413 100644
--- a/policy-core/src/main/java/org/onap/policy/drools/util/KieUtils.java
+++ b/policy-core/src/main/java/org/onap/policy/drools/util/KieUtils.java
@@ -22,10 +22,13 @@ package org.onap.policy.drools.util;
 
 import java.io.File;
 import java.io.IOException;
-import java.nio.charset.StandardCharsets;
 import java.nio.file.Files;
-import java.nio.file.Path;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collections;
 import java.util.List;
+import java.util.stream.Collectors;
+import lombok.NonNull;
 import org.drools.compiler.kie.builder.impl.InternalKieModule;
 import org.drools.compiler.kproject.models.KieModuleModelImpl;
 import org.kie.api.KieServices;
@@ -34,44 +37,52 @@ import org.kie.api.builder.KieFileSystem;
 import org.kie.api.builder.Message;
 import org.kie.api.builder.ReleaseId;
 import org.kie.api.builder.model.KieModuleModel;
+import org.kie.api.definition.KiePackage;
+import org.kie.api.definition.rule.Rule;
+import org.kie.api.runtime.KieContainer;
+import org.kie.api.runtime.KieSession;
 import org.kie.scanner.KieMavenRepository;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 /**
  * Kie related utilities.
  */
 public class KieUtils {
 
+    private static final Logger logger = LoggerFactory.getLogger(KieUtils.class);
+
     private KieUtils() {
         // Utility class
     }
 
     /**
      * Installs a rules artifact in the local maven repository.
-     *
-     * @param kmodule kmodule specification
-     * @param pom pom
-     * @param drlKJarPath path used in kjar drl to the actual drl
-     * @param drl rules in drl language
-     *
-     * @return releaseId result o a sucessful installation
-     * @throws IOException error accessing necessary resources
      */
-    public static ReleaseId installArtifact(String kmodule, String pom, String drlKJarPath, 
-            String drl) throws IOException {
+    public static ReleaseId installArtifact(File kmodule, File pom, String drlKJarPath, @NonNull List<File> drls)
+    throws IOException {
         KieModuleModel kieModule = KieModuleModelImpl.fromXML(kmodule);
 
         final KieFileSystem kieFileSystem = KieServices.Factory.get().newKieFileSystem();
         kieFileSystem.writeKModuleXML(kieModule.toXML());
-        kieFileSystem.writePomXML(pom);
-        kieFileSystem.write(drlKJarPath, drl);
+        kieFileSystem.writePomXML(new String(Files.readAllBytes(pom.toPath())));
+        for (File drl : drls) {
+            kieFileSystem.write(drlKJarPath + drl.getName(), new String(Files.readAllBytes(drl.toPath())));
+        }
 
-        KieBuilder kieBuilder = kieBuild(kieFileSystem);
+        KieBuilder kieBuilder = build(kieFileSystem);
+        return getReleaseId(kieBuilder, pom);
+    }
 
-        Path pomPath = Files.createTempFile("policy-core-", ".pom");
-        Files.write(pomPath, pom.getBytes(StandardCharsets.UTF_8));
-        File pomFile = pomPath.toFile();
-        pomFile.deleteOnExit();
+    /**
+     * Installs a rules artifact in the local maven repository.
+     */
+    public static ReleaseId installArtifact(File kmodule, File pom, String drlKJarPath, File drl)
+    throws IOException {
+        return installArtifact(kmodule, pom, drlKJarPath, Collections.singletonList(drl));
+    }
 
+    private static ReleaseId getReleaseId(KieBuilder kieBuilder, File pomFile) {
         ReleaseId releaseId = kieBuilder.getKieModule().getReleaseId();
         KieMavenRepository
             .getKieMavenRepository()
@@ -82,34 +93,65 @@ public class KieUtils {
     }
 
     /**
-     * Installs a rules artifact in the local maven repository.
-     *
-     * @param kmodule kmodule specification
-     * @param pom pom
-     * @param drlKJarPath path used in kjar drl to the actual drl
-     * @param drl rules in drl language
-     *
-     * @return releaseId result o a sucessful installation
-     * @throws IOException error accessing necessary resources
+     * Get Knowledge Bases.
      */
-    public static ReleaseId installArtifact(File kmodule, File pom, String drlKJarPath, File drl) throws IOException {
-        KieModuleModel kieModule = KieModuleModelImpl.fromXML(kmodule);
+    public static List<String> getBases(KieContainer container) {
+        return new ArrayList<>(container.getKieBaseNames());
+    }
 
-        final KieFileSystem kieFileSystem = KieServices.Factory.get().newKieFileSystem();
-        kieFileSystem.writeKModuleXML(kieModule.toXML());
-        kieFileSystem.writePomXML(new String(Files.readAllBytes(pom.toPath())));
-        kieFileSystem.write(drlKJarPath, new String(Files.readAllBytes(drl.toPath())));
+    /**
+     * Get Packages.
+     */
+    public static List<KiePackage> getPackages(KieContainer container) {
+        return getBases(container).stream()
+            .flatMap(base -> container.getKieBase(base).getKiePackages().stream())
+            .collect(Collectors.toList());
+    }
+
+    /**
+     * Get Package Names.
+     */
+    public static List<String> getPackageNames(KieContainer container) {
+        return getPackages(container).stream()
+            .map(KiePackage::getName)
+            .collect(Collectors.toList());
+    }
 
-        KieBuilder kieBuilder = kieBuild(kieFileSystem);
+    /**
+     * Get Rules.
+     */
+    public static List<Rule> getRules(KieContainer container) {
+        return getPackages(container).stream()
+            .flatMap(kiePackage -> kiePackage.getRules().stream())
+            .collect(Collectors.toList());
+    }
 
-        ReleaseId releaseId = kieBuilder.getKieModule().getReleaseId();
-        KieMavenRepository
-            .getKieMavenRepository()
-            .installArtifact(releaseId, (InternalKieModule) kieBuilder.getKieModule(), pom);
-        return releaseId;
+    /**
+     * Get Rule Names.
+     */
+    public static List<String> getRuleNames(KieContainer container) {
+        return getRules(container).stream()
+            .map(Rule::getName)
+            .collect(Collectors.toList());
+    }
+
+    /**
+     * Get Facts.
+     */
+    public static List<Object> getFacts(KieSession session) {
+        return session.getFactHandles().stream()
+            .map(session::getObject)
+            .collect(Collectors.toList());
+    }
+
+    /**
+     * Create Container.
+     */
+    public static KieContainer createContainer(ReleaseId releaseId) {
+        return KieServices.Factory.get().newKieContainer(releaseId);
     }
 
-    private static KieBuilder kieBuild(KieFileSystem kieFileSystem) {
+    private static KieBuilder build(KieFileSystem kieFileSystem) {
         KieBuilder kieBuilder = KieServices.Factory.get().newKieBuilder(kieFileSystem);
         List<Message> messages = kieBuilder.buildAll().getResults().getMessages();
         if (messages != null && !messages.isEmpty()) {
diff --git a/policy-core/src/test/java/org/onap/policy/drools/core/DroolsContainerTest.java b/policy-core/src/test/java/org/onap/policy/drools/core/DroolsContainerTest.java
index d23bfd0c..d168ca8b 100644
--- a/policy-core/src/test/java/org/onap/policy/drools/core/DroolsContainerTest.java
+++ b/policy-core/src/test/java/org/onap/policy/drools/core/DroolsContainerTest.java
@@ -2,7 +2,7 @@
  * ============LICENSE_START=======================================================
  * policy-core
  * ================================================================================
- * Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
+ * Copyright (C) 2017-2019 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.
@@ -54,13 +54,13 @@ public class DroolsContainerTest {
         KieUtils.installArtifact(
                 Paths.get("src/test/resources/drools-artifact-1.1/src/main/resources/META-INF/kmodule.xml").toFile(),
                 Paths.get("src/test/resources/drools-artifact-1.1/pom.xml").toFile(),
-                "src/main/resources/rules/org/onap/policy/drools/core/test/rules.drl",
+                "src/main/resources/rules/org/onap/policy/drools/core/test/",
                 Paths.get("src/test/resources/drools-artifact-1.1/src/main/resources/rules.drl").toFile());
 
         KieUtils.installArtifact(
                 Paths.get("src/test/resources/drools-artifact-1.2/src/main/resources/META-INF/kmodule.xml").toFile(),
                 Paths.get("src/test/resources/drools-artifact-1.2/pom.xml").toFile(),
-                "src/main/resources/rules/org/onap/policy/drools/core/test/rules.drl",
+                "src/main/resources/rules/org/onap/policy/drools/core/test/",
                 Paths.get("src/test/resources/drools-artifact-1.2/src/main/resources/rules.drl").toFile());
     }
 
diff --git a/policy-core/src/test/java/org/onap/policy/drools/util/KieUtilsTest.java b/policy-core/src/test/java/org/onap/policy/drools/util/KieUtilsTest.java
new file mode 100644
index 00000000..83f62b32
--- /dev/null
+++ b/policy-core/src/test/java/org/onap/policy/drools/util/KieUtilsTest.java
@@ -0,0 +1,122 @@
+/*
+ * ============LICENSE_START=======================================================
+ * ONAP
+ * ================================================================================
+ * 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.drools.util;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+
+import java.io.IOException;
+import java.nio.file.Paths;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.stream.Collectors;
+import org.junit.BeforeClass;
+import org.junit.Test;
+import org.kie.api.builder.ReleaseId;
+import org.kie.api.definition.KiePackage;
+import org.kie.api.definition.rule.Rule;
+import org.kie.api.runtime.KieContainer;
+import org.kie.api.runtime.KieSession;
+
+/**
+ * Kie Utils Tests.
+ */
+public class KieUtilsTest {
+
+    private static KieContainer container;
+    private static KieSession session;
+
+    /**
+     * Test class initialization.
+     */
+    @BeforeClass
+    public static void createArtifact() throws Exception {
+        ReleaseId releaseId =
+            KieUtils.installArtifact(
+                Paths.get("src/test/resources/drools-artifact-1.1/src/main/resources/META-INF/kmodule.xml").toFile(),
+                Paths.get("src/test/resources/drools-artifact-1.1/pom.xml").toFile(),
+                "src/main/resources/rules/org/onap/policy/drools/core/test/",
+                Paths.get("src/test/resources/drools-artifact-1.1/src/main/resources/rules.drl").toFile());
+
+        container = KieUtils.createContainer(releaseId);
+        session = container.getKieBase("rules").newKieSession();
+    }
+
+    @Test
+    public void installArtifact() throws IOException {
+        ReleaseId releaseId =
+            KieUtils.installArtifact(
+                Paths.get("src/test/resources/drools-artifact-1.1/src/main/resources/META-INF/kmodule.xml").toFile(),
+                Paths.get("src/test/resources/drools-artifact-1.1/pom.xml").toFile(),
+                "src/main/resources/rules/org/onap/policy/drools/core/test/",
+                Paths.get("src/test/resources/drools-artifact-1.1/src/main/resources/rules.drl").toFile());
+
+        assertNotNull(releaseId);
+    }
+
+    @Test
+    public void installArtifactList() throws IOException {
+        ReleaseId releaseId =
+            KieUtils.installArtifact(
+                Paths.get("src/test/resources/drools-artifact-1.1/src/main/resources/META-INF/kmodule.xml").toFile(),
+                Paths.get("src/test/resources/drools-artifact-1.1/pom.xml").toFile(),
+                "src/main/resources/rules/org/onap/policy/drools/core/test/",
+                Collections.singletonList(
+                    Paths.get("src/test/resources/drools-artifact-1.1/src/main/resources/rules.drl").toFile()));
+
+        assertNotNull(releaseId);
+    }
+
+    @Test
+    public void getBases() {
+        assertEquals(Collections.singletonList("rules"), KieUtils.getBases(container));
+    }
+
+    @Test
+    public void getPackages() {
+        assertEquals(Arrays.asList("java.util", "java.util.concurrent", "org.onap.policy.drools.core.test"),
+            KieUtils.getPackages(container) .stream().map(KiePackage::getName).collect(Collectors.toList()));
+    }
+
+    @Test
+    public void getPackageNames() {
+        assertEquals(Arrays.asList("java.util", "java.util.concurrent", "org.onap.policy.drools.core.test"),
+            new ArrayList<>(KieUtils.getPackageNames(container)));
+    }
+
+    @Test
+    public void getRules() {
+        assertEquals(Arrays.asList("Initialization", "Add elements of an int list"),
+            KieUtils.getRules(container).stream().map(Rule::getName).collect(Collectors.toList()));
+    }
+
+    @Test
+    public void getRuleNames() {
+        assertEquals(Arrays.asList("Initialization", "Add elements of an int list"),
+            KieUtils.getRuleNames(container).stream().collect(Collectors.toList()));
+    }
+
+    @Test
+    public void getFacts() {
+        assertEquals(0, KieUtils.getFacts(session).size());
+    }
+}
\ No newline at end of file