1 files changed, 168 insertions, 0 deletions
diff --git a/src/main/java/io/swagger/api/impl/DcaeServicesGroupByApiServiceImpl.java b/src/main/java/io/swagger/api/impl/DcaeServicesGroupByApiServiceImpl.java
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+/*-
+ * ============LICENSE_START=======================================================
+ * dcae-inventory
+ * ================================================================================
+ * Copyright (C) 2019 AT&T and 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 io.swagger.api.impl;
+
+import io.swagger.api.DcaeServicesApi;
+import io.swagger.api.DcaeServicesGroupbyApiService;
+import org.onap.dcae.inventory.daos.InventoryDataAccessManager;
+import org.onap.dcae.inventory.dbthings.models.DCAEServiceObject;
+import io.swagger.model.DCAEServiceGroupByResults;
+import io.swagger.model.DCAEServiceGroupByResultsPropertyValues;
+import org.skife.jdbi.v2.Handle;
+
+import javax.ws.rs.core.Link;
+import javax.ws.rs.core.Response;
+import javax.ws.rs.core.SecurityContext;
+import javax.ws.rs.core.UriInfo;
+import java.util.List;
+import java.util.Map;
+
+@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaJerseyServerCodegen", date = "2016-04-18T20:16:22.119Z")
+public class DcaeServicesGroupByApiServiceImpl extends DcaeServicesGroupbyApiService {
+
+    public static final String PROPERTY_NAME_TYPE = "type";
+    public static final String PROPERTY_NAME_VNF_LOCATION = "vnfLocation";
+    public static final String PROPERTY_NAME_VNF_TYPE = "vnfType";
+    private static final String UNKNOWN_PROPERTY_NAME = "n/a";
+
+    private final RunningDcaeServicesProvider runningDcaeServicesProvider;
+    private final DcaeServicesLinkResolver dcaeServicesLinkResolver;
+
+    public DcaeServicesGroupByApiServiceImpl(
+            RunningDcaeServicesProvider runningDcaeServicesProvider,
+            DcaeServicesLinkResolver dcaeServicesLinkResolver) {
+        this.runningDcaeServicesProvider = runningDcaeServicesProvider;
+        this.dcaeServicesLinkResolver = dcaeServicesLinkResolver;
+    }
+
+    @Override
+    public Response dcaeServicesGroupbyPropertyNameGet(
+            String propertyName, UriInfo uriInfo, SecurityContext securityContext) {
+
+        String columnName = resolveColumnName(propertyName);
+        if(columnName.equals(UNKNOWN_PROPERTY_NAME)) {
+            return Response.status(Response.Status.BAD_REQUEST).build();
+        }
+
+        List<Map<String, Object>> runningDcaeServices = runningDcaeServicesProvider.fetch(columnName);
+        DCAEServiceGroupByResults response = generateResponse(propertyName, uriInfo, columnName, runningDcaeServices);
+
+        return Response.ok().entity(response).build();
+    }
+
+    DCAEServiceGroupByResults generateResponse(
+            String propertyName, UriInfo uriInfo, String columnName, List<Map<String, Object>> runningDcaeServices) {
+
+        DCAEServiceGroupByResults response = new DCAEServiceGroupByResults();
+        response.setPropertyName(propertyName);
+
+        for (Map<String, Object> result : runningDcaeServices) {
+            DCAEServiceGroupByResultsPropertyValues value = new DCAEServiceGroupByResultsPropertyValues();
+            value.setCount(((Long) result.get("num")).intValue());
+
+            String propertyValue = (String) result.get(columnName);
+            value.setPropertyValue(propertyValue);
+
+            Link dcaeServicesLink = dcaeServicesLinkResolver.resolveLink(propertyName, uriInfo, propertyValue);
+            value.setDcaeServiceQueryLink(dcaeServicesLink);
+
+            response.getPropertyValues().add(value);
+        }
+        return response;
+    }
+
+    String resolveColumnName(String propertyName) {
+        String columnName;
+
+        switch (propertyName) {
+            case PROPERTY_NAME_TYPE:
+                columnName = "type_id";
+                break;
+            case PROPERTY_NAME_VNF_LOCATION:
+                columnName = "vnf_location";
+                break;
+            case PROPERTY_NAME_VNF_TYPE:
+                columnName = "vnf_type";
+                break;
+            default:
+                columnName = UNKNOWN_PROPERTY_NAME;
+        }
+        return columnName;
+    }
+
+    public static class DcaeServicesLinkResolver {
+
+        private static final String RELATION = "dcae_services";
+
+        Link resolveLink(String propertyName, UriInfo uriInfo, String propertyValue) {
+            Link dcaeServices = null;
+            switch (propertyName) {
+                case PROPERTY_NAME_TYPE:
+                    dcaeServices = DcaeServicesApi.buildLinkForGetByTypeId(uriInfo, RELATION,
+                            propertyValue);
+                    break;
+                case PROPERTY_NAME_VNF_LOCATION:
+                    dcaeServices = DcaeServicesApi.buildLinkForGetByVnfLocation(uriInfo, RELATION,
+                            propertyValue);
+                    break;
+                case PROPERTY_NAME_VNF_TYPE:
+                    dcaeServices = DcaeServicesApi.buildLinkForGetByVnfType(uriInfo, RELATION,
+                            propertyValue);
+                    break;
+                default:
+                    throw new UnsupportedOperationException(String.format("Unsupported '%s' property name!", propertyName));
+            }
+            return dcaeServices;
+        }
+    }
+
+
+    public static class RunningDcaeServicesProvider {
+
+        private static final String SERVICE_STATUS_PLACE_HOLDER = "serviceStatus";
+
+        public RunningDcaeServicesProvider(InventoryDataAccessManager inventoryDataAccessManager) {
+            this.inventoryDataAccessManager = inventoryDataAccessManager;
+        }
+
+        private final InventoryDataAccessManager inventoryDataAccessManager;
+
+        public List<Map<String, Object>> fetch(String columnName) {
+
+            String queryString = createQuery(columnName);
+            try (Handle jdbiHandle = inventoryDataAccessManager.getHandle()) {
+
+                // NOTE: This is hardcoded because service status is only used internally.
+                return jdbiHandle.createQuery(queryString)
+                        .bind(SERVICE_STATUS_PLACE_HOLDER, DCAEServiceObject.DCAEServiceStatus.RUNNING)
+                        .list();
+            }
+        }
+
+        static String createQuery(String columnName) {
+            StringBuilder sb = new StringBuilder();
+            sb.append(String.format("select %s, count(1) as num ", columnName));
+            sb.append(String.format(" from dcae_services where status = :%s",SERVICE_STATUS_PLACE_HOLDER));
+            sb.append(String.format(" group by %s order by count(1) desc", columnName));
+            return sb.toString();
+        }
+    }
+}