Add kubevirt API config service, expose it via REST API and CLI

Change-Id: I45a867ad54622656475758e7b4af38c19e551790
diff --git a/apps/kubevirt-node/app/src/test/java/org/onosproject/kubevirtnode/web/KubevirtApiConfigWebResourceTest.java b/apps/kubevirt-node/app/src/test/java/org/onosproject/kubevirtnode/web/KubevirtApiConfigWebResourceTest.java
new file mode 100644
index 0000000..e6d1034
--- /dev/null
+++ b/apps/kubevirt-node/app/src/test/java/org/onosproject/kubevirtnode/web/KubevirtApiConfigWebResourceTest.java
@@ -0,0 +1,175 @@
+/*
+ * Copyright 2020-present Open Networking 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.
+ */
+package org.onosproject.kubevirtnode.web;
+
+import org.glassfish.jersey.server.ResourceConfig;
+import org.junit.Before;
+import org.junit.Test;
+import org.onlab.osgi.ServiceDirectory;
+import org.onlab.osgi.TestServiceDirectory;
+import org.onlab.packet.IpAddress;
+import org.onosproject.codec.CodecService;
+import org.onosproject.codec.impl.CodecManager;
+import org.onosproject.kubevirtnode.api.DefaultKubevirtApiConfig;
+import org.onosproject.kubevirtnode.api.KubevirtApiConfig;
+import org.onosproject.kubevirtnode.api.KubevirtApiConfigAdminService;
+import org.onosproject.kubevirtnode.codec.KubevirtApiConfigCodec;
+import org.onosproject.rest.resources.ResourceTest;
+
+import javax.ws.rs.client.Entity;
+import javax.ws.rs.client.WebTarget;
+import javax.ws.rs.core.MediaType;
+import javax.ws.rs.core.Response;
+import java.io.InputStream;
+
+import static org.easymock.EasyMock.anyObject;
+import static org.easymock.EasyMock.anyString;
+import static org.easymock.EasyMock.createMock;
+import static org.easymock.EasyMock.expect;
+import static org.easymock.EasyMock.replay;
+import static org.easymock.EasyMock.verify;
+import static org.hamcrest.Matchers.is;
+import static org.junit.Assert.assertThat;
+import static org.onosproject.kubevirtnode.api.KubevirtApiConfig.Scheme.HTTPS;
+import static org.onosproject.kubevirtnode.api.KubevirtApiConfig.State.DISCONNECTED;
+
+/**
+ * Unit test for KubeVirt node REST API.
+ */
+public class KubevirtApiConfigWebResourceTest extends ResourceTest {
+
+    final KubevirtApiConfigAdminService mockConfigAdminService =
+            createMock(KubevirtApiConfigAdminService.class);
+    private static final String PATH = "api-config";
+
+    private KubevirtApiConfig kubevirtApiConfig;
+
+    /**
+     * Constructs a KubeVirt API config resource test instance.
+     */
+    public KubevirtApiConfigWebResourceTest() {
+        super(ResourceConfig.forApplicationClass(KubevirtNodeWebApplication.class));
+    }
+
+    /**
+     * Sets up the global values for all the tests.
+     */
+    @Before
+    public void setUpTest() {
+        final CodecManager codecService = new CodecManager();
+        codecService.activate();
+        codecService.registerCodec(KubevirtApiConfig.class, new KubevirtApiConfigCodec());
+        ServiceDirectory testDirectory =
+                new TestServiceDirectory()
+                .add(KubevirtApiConfigAdminService.class, mockConfigAdminService)
+                .add(CodecService.class, codecService);
+        setServiceDirectory(testDirectory);
+
+        kubevirtApiConfig = DefaultKubevirtApiConfig.builder()
+                .scheme(HTTPS)
+                .ipAddress(IpAddress.valueOf("10.134.34.223"))
+                .port(6443)
+                .state(DISCONNECTED)
+                .token("tokenMod")
+                .caCertData("caCertData")
+                .clientCertData("clientCertData")
+                .clientKeyData("clientKeyData")
+                .build();
+    }
+
+    /**
+     * Tests the results of the REST API POST method with creating new configs operation.
+     */
+    @Test
+    public void testCreateConfigWithCreateOperation() {
+        mockConfigAdminService.createApiConfig(anyObject());
+        replay(mockConfigAdminService);
+
+        final WebTarget wt = target();
+        InputStream jsonStream = KubevirtApiConfigWebResourceTest.class
+                .getResourceAsStream("kubevirt-api-config.json");
+        Response response = wt.path(PATH).request(MediaType.APPLICATION_JSON_TYPE)
+                .post(Entity.json(jsonStream));
+        final int status = response.getStatus();
+
+        assertThat(status, is(201));
+
+        verify(mockConfigAdminService);
+    }
+
+    /**
+     * Tests the results of the REST API POST method without creating new configs operation.
+     */
+    @Test
+    public void testCreateConfigWithNullConfig() {
+        mockConfigAdminService.createApiConfig(null);
+        replay(mockConfigAdminService);
+
+        final WebTarget wt = target();
+        InputStream jsonStream = KubevirtApiConfigWebResourceTest.class
+                .getResourceAsStream("kubevirt-api-config.json");
+        Response response = wt.path(PATH).request(MediaType.APPLICATION_JSON_TYPE)
+                .post(Entity.json(jsonStream));
+        final int status = response.getStatus();
+
+        assertThat(status, is(500));
+    }
+
+    /**
+     * Tests the results of the REST API DELETE method with deleting the configs.
+     */
+    @Test
+    public void testDeleteConfigsWithDeletionOperation() {
+        expect(mockConfigAdminService.apiConfig())
+                .andReturn(kubevirtApiConfig).once();
+        expect(mockConfigAdminService.removeApiConfig(anyString()))
+                .andReturn(kubevirtApiConfig).once();
+        replay(mockConfigAdminService);
+
+        String location = PATH + "/https://10.134.34.223:6443";
+
+        final WebTarget wt = target();
+        Response response = wt.path(location).request(
+                MediaType.APPLICATION_JSON_TYPE).delete();
+
+        final int status = response.getStatus();
+
+        assertThat(status, is(204));
+
+        verify(mockConfigAdminService);
+    }
+
+    /**
+     * Tests the results of the REST API DELETE method without deleting the configs.
+     */
+    @Test
+    public void testDeleteConfigsWithoutDeletionOperation() {
+        expect(mockConfigAdminService.apiConfig()).andReturn(null).once();
+        replay(mockConfigAdminService);
+
+        String location = PATH + "/https://test:8663";
+
+        final WebTarget wt = target();
+        Response response = wt.path(location).request(
+                MediaType.APPLICATION_JSON_TYPE).delete();
+
+        final int status = response.getStatus();
+
+        assertThat(status, is(304));
+
+        verify(mockConfigAdminService);
+    }
+}