Implement http participant in CLAMP

Issue-ID: POLICY-3449
Signed-off-by: zrrmmua <ramesh.murugan.iyer@est.tech>
Change-Id: Ibfe23a6e98fb760a930b6080dc2291113b3cb4fa

5 files changed, 550 insertions, 0 deletions

diff --git a/participant/participant-impl/participant-impl-http/src/test/java/handler/ClElementHandlerTest.java b/participant/participant-impl/participant-impl-http/src/test/java/handler/ClElementHandlerTest.java
new file mode 100644
index 000000000..10b8103cb
--- /dev/null
+++ b/participant/participant-impl/participant-impl-http/src/test/java/handler/ClElementHandlerTest.java
@@ -0,0 +1,63 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  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 handler;
+
+import static org.junit.jupiter.api.Assertions.assertDoesNotThrow;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.Mockito.doNothing;
+
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.InjectMocks;
+import org.mockito.Spy;
+import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ControlLoopElement;
+import org.onap.policy.clamp.controlloop.participant.http.main.handler.ControlLoopElementHandler;
+import org.onap.policy.common.utils.coder.CoderException;
+import org.onap.policy.models.tosca.authorative.concepts.ToscaServiceTemplate;
+import org.springframework.test.context.junit.jupiter.SpringExtension;
+import utils.CommonTestData;
+import utils.ToscaUtils;
+
+@ExtendWith(SpringExtension.class)
+class ClElementHandlerTest {
+
+    @InjectMocks
+    @Spy
+    private ControlLoopElementHandler controlLoopElementHandler = new ControlLoopElementHandler();
+
+    private CommonTestData commonTestData = new CommonTestData();
+
+    private static ToscaServiceTemplate serviceTemplate;
+
+    @BeforeAll
+    static void init() throws CoderException {
+        serviceTemplate = ToscaUtils.readControlLoopFromTosca();
+    }
+
+    @Test
+    void test_ControlLoopElementUpdate() {
+        doNothing().when(controlLoopElementHandler).invokeHttpClient(any());
+        ControlLoopElement element = commonTestData.getControlLoopElement();
+        assertDoesNotThrow(() -> controlLoopElementHandler
+            .controlLoopElementUpdate(element, serviceTemplate));
+    }
+}
diff --git a/participant/participant-impl/participant-impl-http/src/test/java/utils/CommonTestData.java b/participant/participant-impl/participant-impl-http/src/test/java/utils/CommonTestData.java
new file mode 100644
index 000000000..84957edfa
--- /dev/null
+++ b/participant/participant-impl/participant-impl-http/src/test/java/utils/CommonTestData.java
@@ -0,0 +1,146 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  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 utils;
+
+import java.util.List;
+import java.util.Map;
+import java.util.UUID;
+import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ControlLoopElement;
+import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ControlLoopOrderedState;
+import org.onap.policy.clamp.controlloop.participant.http.main.models.ConfigurationEntity;
+import org.onap.policy.clamp.controlloop.participant.http.main.models.RestParams;
+import org.onap.policy.common.utils.coder.Coder;
+import org.onap.policy.common.utils.coder.StandardCoder;
+import org.onap.policy.models.tosca.authorative.concepts.ToscaConceptIdentifier;
+
+public class CommonTestData {
+
+    private static final Coder CODER = new StandardCoder();
+    private static final String TEST_KEY_NAME = "org.onap.domain.database.Http_PMSHMicroserviceControlLoopElement";
+
+
+    /**
+     * Get a controlLoop Element.
+     * @return controlLoopElement object
+     */
+    public ControlLoopElement getControlLoopElement() {
+        ControlLoopElement element = new ControlLoopElement();
+        element.setId(UUID.randomUUID());
+        element.setDefinition(new ToscaConceptIdentifier(TEST_KEY_NAME, "1.0.1"));
+        element.setOrderedState(ControlLoopOrderedState.PASSIVE);
+        return element;
+    }
+
+    /**
+     * Get query params.
+     * @return Map of query params
+     */
+    public Map<String, String> getQueryParams() {
+        return Map.of("name", "dummy", "version", "1.0");
+    }
+
+    /**
+     * Get path params.
+     * @return Map of path params
+     */
+    public Map<String, Object> getPathParams() {
+        return Map.of("id", "123", "name", "dummy");
+    }
+
+    /**
+     * Rest params with GET request.
+     * @return RestParams obj
+     */
+    public RestParams restParamsWithGet() {
+        return new RestParams(
+            new ToscaConceptIdentifier("getRequest", "1.0"),
+            "GET",
+            "get",
+            200,
+            null,
+            getQueryParams(),
+            null
+        );
+    }
+
+    /**
+     * Rest params with POST request.
+     * @return RestParams obj
+     */
+    public RestParams restParamsWithPost() {
+        return new RestParams(
+            new ToscaConceptIdentifier("postRequest", "1.0"),
+            "POST",
+            "post",
+            200,
+            null,
+            getQueryParams(),
+            "Test body"
+        );
+    }
+
+    /**
+     * Rest params with POST request.
+     * @return RestParams obj
+     */
+    public RestParams restParamsWithInvalidPost() {
+        return new RestParams(
+            new ToscaConceptIdentifier("postRequest", "1.0"),
+            "POST",
+            "post/{id}/{name}",
+            200,
+            getPathParams(),
+            getQueryParams(),
+            "Test body"
+        );
+    }
+
+    /**
+     * Get invalid configuration entity.
+     * @return ConfigurationEntity obj
+     */
+    public ConfigurationEntity getInvalidConfigurationEntity() {
+        return new ConfigurationEntity(
+            new ToscaConceptIdentifier("config1", "1.0.1"),
+            List.of(restParamsWithGet(), restParamsWithInvalidPost())
+        );
+    }
+
+    /**
+     * Get configuration entity.
+     * @return ConfigurationEntity obj
+     */
+    public ConfigurationEntity getConfigurationEntity() {
+        return new ConfigurationEntity(
+            new ToscaConceptIdentifier("config1", "1.0.1"),
+            List.of(restParamsWithGet(), restParamsWithPost())
+        );
+    }
+
+    /**
+     * Get headers for config request.
+     * @return Map of headers
+     */
+    public Map<String, String> getHeaders() {
+        return  Map.of("Content-Type", "application/json", "Accept", "application/json");
+    }
+
+}
diff --git a/participant/participant-impl/participant-impl-http/src/test/java/utils/ToscaUtils.java b/participant/participant-impl/participant-impl-http/src/test/java/utils/ToscaUtils.java
new file mode 100644
index 000000000..cf71248c3
--- /dev/null
+++ b/participant/participant-impl/participant-impl-http/src/test/java/utils/ToscaUtils.java
@@ -0,0 +1,48 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  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 utils;
+
+import org.onap.policy.common.utils.coder.YamlJsonTranslator;
+import org.onap.policy.common.utils.resources.ResourceUtils;
+import org.onap.policy.models.tosca.authorative.concepts.ToscaServiceTemplate;
+
+/**
+ * Util class for Test scope.
+ */
+public class ToscaUtils {
+
+    private static final YamlJsonTranslator yamlTranslator = new YamlJsonTranslator();
+    private static final String TOSCA_TEMPLATE_YAML = "src/test/resources/HttpParticipantConfig.yaml";
+
+
+    /**
+     * Read a service template yaml.
+     * @return ToscaServiceTemplate
+     */
+    public static ToscaServiceTemplate readControlLoopFromTosca() {
+        return serializeControlLoopYaml(TOSCA_TEMPLATE_YAML);
+    }
+
+    private static ToscaServiceTemplate serializeControlLoopYaml(String controlLoopFilePath) {
+        String controlLoopString = ResourceUtils.getResourceAsString(controlLoopFilePath);
+        return yamlTranslator.fromYaml(controlLoopString, ToscaServiceTemplate.class);
+    }
+}
diff --git a/participant/participant-impl/participant-impl-http/src/test/java/webclient/ClHttpClientTest.java b/participant/participant-impl/participant-impl-http/src/test/java/webclient/ClHttpClientTest.java
new file mode 100644
index 000000000..411974a04
--- /dev/null
+++ b/participant/participant-impl/participant-impl-http/src/test/java/webclient/ClHttpClientTest.java
@@ -0,0 +1,85 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  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 webclient;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.junit.jupiter.api.Assertions.assertDoesNotThrow;
+
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import org.apache.commons.lang3.tuple.Pair;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.onap.policy.clamp.controlloop.participant.http.main.models.ConfigRequest;
+import org.onap.policy.clamp.controlloop.participant.http.main.models.ConfigurationEntity;
+import org.onap.policy.clamp.controlloop.participant.http.main.webclient.ClHttpClient;
+import org.onap.policy.models.tosca.authorative.concepts.ToscaConceptIdentifier;
+import org.springframework.test.context.junit.jupiter.SpringExtension;
+import utils.CommonTestData;
+
+@ExtendWith(SpringExtension.class)
+class ClHttpClientTest {
+
+    private CommonTestData commonTestData = new CommonTestData();
+
+    private String testBaseUrl = "https://httpbin.org";
+
+    private Map<ToscaConceptIdentifier, Pair<Integer, String>> responseMap = new HashMap<>();
+
+
+    @Test
+    void test_validRequest() {
+        //Add valid rest requests POST, GET
+        ConfigurationEntity configurationEntity = commonTestData.getConfigurationEntity();
+
+        Map<String, String> headers = commonTestData.getHeaders();
+        ConfigRequest configRequest = new ConfigRequest(testBaseUrl, headers,
+            List.of(configurationEntity), 10);
+
+        ClHttpClient client = new ClHttpClient(configRequest, responseMap);
+        assertDoesNotThrow(client::run);
+        assertThat(responseMap).hasSize(2).containsKey(commonTestData
+            .restParamsWithGet().getRestRequestId());
+
+        Pair<Integer, String> restResponseMap = responseMap.get(commonTestData
+            .restParamsWithGet().getRestRequestId());
+        assertThat(restResponseMap.getKey()).isEqualTo(200);
+    }
+
+    @Test
+    void test_invalidRequest() {
+        //Add rest requests Invalid POST, Valid GET
+        ConfigurationEntity configurationEntity = commonTestData.getInvalidConfigurationEntity();
+
+        Map<String, String> headers = commonTestData.getHeaders();
+        ConfigRequest configRequest = new ConfigRequest(testBaseUrl, headers,
+            List.of(configurationEntity), 10);
+
+        ClHttpClient client = new ClHttpClient(configRequest, responseMap);
+        assertDoesNotThrow(client::run);
+        assertThat(responseMap).hasSize(2).containsKey(commonTestData
+            .restParamsWithGet().getRestRequestId());
+        Pair<Integer, String> response = responseMap
+            .get(commonTestData.restParamsWithInvalidPost().getRestRequestId());
+        assertThat(response.getKey()).isEqualTo(404);
+    }
+}
diff --git a/participant/participant-impl/participant-impl-http/src/test/resources/HttpParticipantConfig.yaml b/participant/participant-impl/participant-impl-http/src/test/resources/HttpParticipantConfig.yaml
new file mode 100644
index 000000000..43d0c269c
--- /dev/null
+++ b/participant/participant-impl/participant-impl-http/src/test/resources/HttpParticipantConfig.yaml
@@ -0,0 +1,208 @@
+# ============LICENSE_START=======================================================
+# 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=========================================================
+tosca_definitions_version: tosca_simple_yaml_1_3
+data_types:
+  onap.datatypes.ToscaConceptIdentifier:
+    derived_from: tosca.datatypes.Root
+    properties:
+      name:
+        type: string
+        required: true
+      version:
+        type: string
+        required: true
+
+  org.onap.datatypes.policy.clamp.controlloop.httpControlLoopElement.RestRequest:
+    version: 1.0.0
+    derived_from: tosca.datatypes.Root
+    properties:
+      restRequestId:
+        type:  onap.datatypes.ToscaConceptIdentifier
+        typeVersion: 1.0.0
+        required: true
+        description: The name and version of a REST request to be sent to a REST endpoint
+      httpMethod:
+        type: string
+        required: true
+        constraints:
+          - valid_values: [POST, PUT, GET, DELETE]
+        description: The REST method to use
+      path:
+        type: string
+        required: true
+        description: The path of the REST request relative to the base URL
+      body:
+        type: string
+        required: false
+        description: The body of the REST request for PUT and POST requests
+      expectedResponse:
+        type: integer
+        required: true
+        constraints:
+          - in_range: [100, 599]
+        description: THe expected HTTP status code for the REST request
+    org.onap.datatypes.policy.clamp.controlloop.httpControlLoopElement.ConfigurationEntity:
+      version: 1.0.0
+      derived_from: tosca.datatypes.Root
+      properties:
+        configurationEntityId:
+          type:  onap.datatypes.ToscaConceptIdentifier
+          typeVersion: 1.0.0
+          required: true
+          description: The name and version of a Configuration Entity to be handled by the HTTP Control Loop Element
+        restSequence:
+          type: list
+          entry_schema:
+            type: org.onap.datatypes.policy.clamp.controlloop.httpControlLoopElement.RestRequest
+            typeVersion: 1.0.0
+          description: A sequence of REST commands to send to the REST endpoint
+
+
+node_types:
+  org.onap.policy.clamp.controlloop.Participant:
+    version: 1.0.1
+    derived_from: tosca.nodetypes.Root
+    properties:
+      provider:
+        type: string
+        requred: false
+  org.onap.policy.clamp.controlloop.ControlLoopElement:
+    version: 1.0.1
+    derived_from: tosca.nodetypes.Root
+    properties:
+      provider:
+        type: string
+        requred: false
+      participant_id:
+        type: onap.datatypes.ToscaConceptIdentifier
+        requred: true
+  org.onap.policy.clamp.controlloop.ControlLoop:
+    version: 1.0.1
+    derived_from: tosca.nodetypes.Root
+    properties:
+      provider:
+        type: string
+        requred: false
+      elements:
+        type: list
+        required: true
+        entry_schema:
+          type: onap.datatypes.ToscaConceptIdentifier
+  org.onap.policy.clamp.controlloop.HttpControlLoopElement:
+    version: 1.0.1
+    derived_from: org.onap.policy.clamp.controlloop.ControlLoopElement
+    properties:
+      baseUrl:
+        type: string
+        required: true
+        description: The base URL to be prepended to each path, identifies the host for the REST endpoints.
+      httpHeaders:
+        type: map
+        required: false
+        entry_schema:
+          type: string
+        description: HTTP headers to send on REST requests
+      configurationEntities:
+        type: map
+        required: true
+        entry_schema:
+          type: org.onap.datatypes.policy.clamp.controlloop.httpControlLoopElement.ConfigurationEntity
+          typeVersion: 1.0.0
+        description: The connfiguration entities the Control Loop Element is managing and their associated REST requests
+topology_template:
+  node_templates:
+    org.onap.k8s.controlloop.HttpControlLoopParticipant:
+      version: 2.3.4
+      type: org.onap.policy.clamp.controlloop.Participant
+      type_version: 1.0.1
+      description: Participant for Http requests
+      properties:
+        provider: ONAP
+
+    org.onap.domain.database.Http_PMSHMicroserviceControlLoopElement:
+      # Http config for PMSH.
+      version: 1.2.3
+      type: org.onap.policy.clamp.controlloop.HttpControlLoopElement
+      type_version: 1.0.1
+      description: Control loop element for the http requests of PMSH microservice
+      properties:
+        provider: ONAP
+        participant_id:
+          name: org.onap.controlloop.HttpControlLoopParticipant
+          version: 2.3.4
+        uninitializedToPassiveTimeout: 180
+        baseUrl: https://httpbin.org
+        httpHeaders:
+          Content-Type: application/json
+        configurationEntities:
+          - configurationEntityId:
+              name: entity1
+              version: 1.0.1
+            restSequence:
+              - restRequestId:
+                  name: request1
+                  version: 1.0.1
+                httpMethod: POST
+                path: post
+                body: '{"name":"ob1","port_type"}'
+                expectedResponse: 200
+
+              - restRequestId:
+                  name: request1
+                  version: 1.0.1
+                httpMethod: GET
+                path: get
+                expectedResponse: 200
+
+          # Rest path with path params and query params
+          - configurationEntityId:
+              name: entity2
+              version: 1.0.1
+            restSequence:
+              - restRequestId:
+                  name: request1
+                  version: 1.0.1
+                httpMethod: POST
+                path: post/{id}/{name}
+                pathParams:
+                  id: 123
+                  name: dummyName
+                body: this is a test body
+                expectedResponse: 200
+
+              - restRequestId:
+                  name: request1
+                  version: 1.0.1
+                httpMethod: GET
+                path: get
+                queryParams:
+                  id: 123
+                  name: dummyName
+                expectedResponse: 200
+
+
+    org.onap.domain.sample.GenericK8s_ControlLoopDefinition:
+      version: 1.2.3
+      type: org.onap.policy.clamp.controlloop.ControlLoop
+      type_version: 1.0.0
+      description: Control loop for HTTP request
+      properties:
+        provider: ONAP
+        elements:
+          - name: org.onap.domain.database.Http_PMSHMicroserviceControlLoopElement
+            version: 1.2.3