Extract modules names and relations

Extract modules names and relations from DCAE_INVENTORY_BLUEPRINT

Change-Id: Ia419b946e15f399d3c4e8c75f836fde6b4b3dbed
Issue-ID: CLAMP-283
Signed-off-by: Piotr Darosz <piotr.darosz@nokia.com>

2 files changed, 265 insertions, 0 deletions

diff --git a/src/test/java/org/onap/clamp/clds/sdc/controller/installer/BlueprintParserTest.java b/src/test/java/org/onap/clamp/clds/sdc/controller/installer/BlueprintParserTest.java
new file mode 100644
index 000000000..2a2ab94e6
--- /dev/null
+++ b/src/test/java/org/onap/clamp/clds/sdc/controller/installer/BlueprintParserTest.java
@@ -0,0 +1,190 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP CLAMP
+ * ================================================================================
+ * Copyright (C) 2019 Nokia 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.clamp.clds.sdc.controller.installer;
+
+import com.google.gson.Gson;
+import com.google.gson.JsonElement;
+import com.google.gson.JsonObject;
+import java.io.IOException;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Map.Entry;
+import java.util.Set;
+import org.json.JSONObject;
+import org.junit.Assert;
+import org.junit.BeforeClass;
+import org.junit.Test;
+import org.onap.clamp.clds.util.ResourceFileUtil;
+import org.yaml.snakeyaml.Yaml;
+
+public class BlueprintParserTest {
+    private static final Gson GSON = new Gson();
+    private static final String FIRST_APPP = "first_app";
+    private static final String SECOND_APPP = "second_app";
+    private static final String THIRD_APPP = "third_app";
+
+    private static String microServiceTheWholeBlueprintValid;
+    private static String microServiceBlueprintOldStyleTCA;
+    private static String microServiceBlueprintOldStyleHolmes;
+
+    private static JsonObject jsonObjectBlueprintValid;
+    private static JsonObject jsonObjectBlueprintWithoutName;
+    private static JsonObject jsonObjectBlueprintWithoutProperties;
+    private static JsonObject jsonObjectBlueprintWithoutRelationships;
+
+    @BeforeClass
+    public static void loadBlueprints() throws IOException {
+        microServiceTheWholeBlueprintValid = ResourceFileUtil
+            .getResourceAsString("clds/blueprint-with-microservice-chain.yaml");
+        microServiceBlueprintOldStyleTCA = ResourceFileUtil
+            .getResourceAsString("clds/tca-old-style-ms.yaml");
+        microServiceBlueprintOldStyleHolmes = ResourceFileUtil
+            .getResourceAsString("clds/holmes-old-style-ms.yaml");
+
+        String microServiceBlueprintValid = ResourceFileUtil
+            .getResourceAsString("clds/single-microservice-fragment-valid.yaml");
+        String microServiceBlueprintWithoutName = ResourceFileUtil
+            .getResourceAsString("clds/single-microservice-fragment-without-name.yaml");
+        String microServiceBlueprintWithoutProperties = ResourceFileUtil
+            .getResourceAsString("clds/single-microservice-fragment-without-properties.yaml");
+        String microServiceBlueprintWithoutRelationships = ResourceFileUtil
+            .getResourceAsString("clds/single-microservice-fragment-without-relationships.yaml");
+
+        jsonObjectBlueprintValid = yamlToJson(microServiceBlueprintValid);
+        jsonObjectBlueprintWithoutName = yamlToJson(microServiceBlueprintWithoutName);
+        jsonObjectBlueprintWithoutProperties = yamlToJson(microServiceBlueprintWithoutProperties);
+        jsonObjectBlueprintWithoutRelationships = yamlToJson(microServiceBlueprintWithoutRelationships);
+
+    }
+
+    @Test
+    public void getNameShouldReturnDefinedName() {
+        final JsonObject jsonObject = jsonObjectBlueprintValid;
+        String expectedName = jsonObject.get(jsonObject.keySet().iterator().next())
+            .getAsJsonObject().get("properties")
+            .getAsJsonObject().get("name")
+            .getAsString();
+        Entry<String, JsonElement> entry = jsonObject.entrySet().iterator().next();
+        String actualName = new BlueprintParser().getName(entry);
+
+        Assert.assertEquals(expectedName, actualName);
+    }
+
+    @Test
+    public void getNameShouldReturnServiceNameWhenNoNameDefined() {
+        final JsonObject jsonObject = jsonObjectBlueprintWithoutName;
+
+        String expectedName = jsonObject.keySet().iterator().next();
+        Entry<String, JsonElement> entry = jsonObject.entrySet().iterator().next();
+        String actualName = new BlueprintParser().getName(entry);
+
+        Assert.assertEquals(expectedName, actualName);
+    }
+
+    @Test
+    public void getNameShouldReturnServiceNameWhenNoPropertiesDefined() {
+        final JsonObject jsonObject = jsonObjectBlueprintWithoutProperties;
+
+        String expectedName = jsonObject.keySet().iterator().next();
+        Entry<String, JsonElement> entry = jsonObject.entrySet().iterator().next();
+        String actualName = new BlueprintParser().getName(entry);
+
+        Assert.assertEquals(expectedName, actualName);
+    }
+
+    @Test
+    public void getInputShouldReturnInputWhenPresent() {
+        final JsonObject jsonObject = jsonObjectBlueprintValid;
+
+        String expected = FIRST_APPP;
+        Entry<String, JsonElement> entry = jsonObject.entrySet().iterator().next();
+        String actual = new BlueprintParser().getInput(entry);
+
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test
+    public void getInputShouldReturnEmptyStringWhenAbsent() {
+        final JsonObject jsonObject = jsonObjectBlueprintWithoutRelationships;
+
+        String expected = "";
+        Entry<String, JsonElement> entry = jsonObject.entrySet().iterator().next();
+        String actual = new BlueprintParser().getInput(entry);
+
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test
+    public void getNodeRepresentationFromCompleteYaml() {
+        final JsonObject jsonObject = jsonObjectBlueprintValid;
+
+        MicroService expected = new MicroService(SECOND_APPP, FIRST_APPP);
+        Entry<String, JsonElement> entry = jsonObject.entrySet().iterator().next();
+        MicroService actual = new BlueprintParser().getNodeRepresentation(entry);
+
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test
+    public void getMicroServicesFromBlueprintTest() {
+        MicroService thirdApp = new MicroService(THIRD_APPP, "");
+        MicroService firstApp = new MicroService(FIRST_APPP, THIRD_APPP);
+        MicroService secondApp = new MicroService(SECOND_APPP, FIRST_APPP);
+
+        Set<MicroService> expected = new HashSet<>(Arrays.asList(firstApp, secondApp, thirdApp));
+        Set<MicroService> actual = new BlueprintParser().getMicroServices(microServiceTheWholeBlueprintValid);
+
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test
+    public void fallBackToOneMicroServiceTCATest() {
+        MicroService tcaMS = new MicroService(BlueprintParser.TCA, "");
+
+        List<MicroService> expected = Collections.singletonList(tcaMS);
+        List<MicroService> actual = new BlueprintParser().fallbackToOneMicroService(microServiceBlueprintOldStyleTCA);
+
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test
+    public void fallBackToOneMicroServiceHolmesTest() {
+        MicroService holmesMS = new MicroService(BlueprintParser.HOLMES, "");
+
+        List<MicroService> expected = Collections.singletonList(holmesMS);
+        List<MicroService> actual =
+            new BlueprintParser().fallbackToOneMicroService(microServiceBlueprintOldStyleHolmes);
+
+        Assert.assertEquals(expected, actual);
+    }
+
+    private static JsonObject yamlToJson(String yamlString) {
+        Yaml yaml = new Yaml();
+        Map<String, Object> map = yaml.load(yamlString);
+        JSONObject jsonObject = new JSONObject(map);
+        return GSON.fromJson(jsonObject.toString(), JsonObject.class);
+    }
+}
diff --git a/src/test/java/org/onap/clamp/clds/sdc/controller/installer/ChainGeneratorTest.java b/src/test/java/org/onap/clamp/clds/sdc/controller/installer/ChainGeneratorTest.java
new file mode 100644
index 000000000..9573515d2
--- /dev/null
+++ b/src/test/java/org/onap/clamp/clds/sdc/controller/installer/ChainGeneratorTest.java
@@ -0,0 +1,75 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP CLAMP
+ * ================================================================================
+ * Copyright (C) 2019 Nokia 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.clamp.clds.sdc.controller.installer;
+
+import java.util.Arrays;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+import org.junit.Assert;
+import org.junit.Test;
+
+public class ChainGeneratorTest {
+    private static final String FIRST_APPP = "first_app";
+    private static final String SECOND_APPP = "second_app";
+    private static final String THIRD_APPP = "third_app";
+    private static final String FOURTH_APPP = "fourth_app";
+
+    @Test
+    public void getChainOfMicroServicesTest() {
+        MicroService ms1 = new MicroService(FIRST_APPP, "");
+        MicroService ms2 = new MicroService(SECOND_APPP, FIRST_APPP);
+        MicroService ms3 = new MicroService(THIRD_APPP, SECOND_APPP);
+        MicroService ms4 = new MicroService(FOURTH_APPP, THIRD_APPP);
+
+        List<MicroService> expectedList = Arrays.asList(ms1, ms2, ms3, ms4);
+        Set<MicroService> inputSet = new HashSet<>(expectedList);
+
+        List<MicroService> actualList = new ChainGenerator().getChainOfMicroServices(inputSet);
+        Assert.assertEquals(expectedList, actualList);
+    }
+
+    @Test
+    public void getChainOfMicroServicesTwiceNoInputTest() {
+        MicroService ms1 = new MicroService(FIRST_APPP, "");
+        MicroService ms2 = new MicroService(SECOND_APPP, "");
+        MicroService ms3 = new MicroService(THIRD_APPP, SECOND_APPP);
+        MicroService ms4 = new MicroService(FOURTH_APPP, FIRST_APPP);
+
+        Set<MicroService> inputSet = new HashSet<>(Arrays.asList(ms1, ms2, ms3, ms4));
+        List<MicroService> actualList = new ChainGenerator().getChainOfMicroServices(inputSet);
+        Assert.assertTrue(actualList.isEmpty());
+    }
+
+    @Test
+    public void getChainOfMicroServicesBranchingTest() {
+        MicroService ms1 = new MicroService(FIRST_APPP, "");
+        MicroService ms2 = new MicroService(SECOND_APPP, FIRST_APPP);
+        MicroService ms3 = new MicroService(THIRD_APPP, FIRST_APPP);
+        MicroService ms4 = new MicroService(FOURTH_APPP, FIRST_APPP);
+
+        Set<MicroService> inputSet = new HashSet<>(Arrays.asList(ms1, ms2, ms3, ms4));
+        List<MicroService> actualList = new ChainGenerator().getChainOfMicroServices(inputSet);
+        Assert.assertTrue(actualList.isEmpty());
+    }
+}
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