Added EdgeEventController.java

+/**
+ * Copyright © 2016-2020 The Thingsboard Authors
+ *
+ * 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.thingsboard.server.controller;
+
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.security.access.prepost.PreAuthorize;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.ResponseBody;
+import org.springframework.web.bind.annotation.RestController;
+import org.thingsboard.server.common.data.edge.EdgeEvent;
+import org.thingsboard.server.common.data.exception.ThingsboardException;
+import org.thingsboard.server.common.data.id.EdgeId;
+import org.thingsboard.server.common.data.id.TenantId;
+import org.thingsboard.server.common.data.page.TimePageData;
+import org.thingsboard.server.common.data.page.TimePageLink;
+import org.thingsboard.server.dao.edge.EdgeEventService;
+import org.thingsboard.server.queue.util.TbCoreComponent;
+
+@Slf4j
+@RestController
+@TbCoreComponent
+@RequestMapping("/api")
+public class EdgeEventController extends BaseController {
+
+    @Autowired
+    private EdgeEventService edgeEventService;
+
+    public static final String EDGE_ID = "edgeId";
+
+    @PreAuthorize("hasAnyAuthority('SYS_ADMIN', 'TENANT_ADMIN', 'CUSTOMER_USER')")
+    @RequestMapping(value = "/edge/{edgeId}/events", method = RequestMethod.GET)
+    @ResponseBody
+    public TimePageData<EdgeEvent> getEdgeEvents(
+            @PathVariable(EDGE_ID) String strEdgeId,
+            @RequestParam int limit,
+            @RequestParam(required = false) Long startTime,
+            @RequestParam(required = false) Long endTime,
+            @RequestParam(required = false, defaultValue = "false") boolean ascOrder,
+            @RequestParam(required = false) String offset) throws ThingsboardException {
+        checkParameter(EDGE_ID, strEdgeId);
+        try {
+            TenantId tenantId = getCurrentUser().getTenantId();
+            EdgeId edgeId = new EdgeId(toUUID(strEdgeId));
+            TimePageLink pageLink = createPageLink(limit, startTime, endTime, ascOrder, offset);
+            return checkNotNull(edgeEventService.findEdgeEvents(tenantId, edgeId, pageLink));
+        } catch (Exception e) {
+            throw handleException(e);
+        }
+    }
+}