1 files changed, 61 insertions, 0 deletions
diff --git a/sleepingcelldetector/src/main/java/org/onap/rapp/sleepingcelldetector/service/DataCollectorClient.java b/sleepingcelldetector/src/main/java/org/onap/rapp/sleepingcelldetector/service/DataCollectorClient.java
new file mode 100644
index 0000000..85a5e06
--- /dev/null
+++ b/sleepingcelldetector/src/main/java/org/onap/rapp/sleepingcelldetector/service/DataCollectorClient.java
@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) 2021 Samsung Electronics
+ * 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.onap.rapp.sleepingcelldetector.service;
+
+import java.io.UnsupportedEncodingException;
+import java.net.URI;
+import java.net.URLEncoder;
+import java.nio.charset.StandardCharsets;
+import java.time.OffsetDateTime;
+import org.onap.rapp.sleepingcelldetector.configuration.SleepingCellDetectorConfiguration;
+import org.onap.rapp.sleepingcelldetector.entity.pm.PMEntity;
+import org.onap.rapp.sleepingcelldetector.entity.ue.UEInfo;
+import org.springframework.http.ResponseEntity;
+import org.springframework.stereotype.Service;
+import org.springframework.web.client.RestTemplate;
+
+@Service
+public class DataCollectorClient {
+
+    public static final String AGGREGATED_METRICS_URL = "/pm/events/aggregatedmetrics";
+    public static final String UES_URL = "/pm/ues";
+    private final SleepingCellDetectorConfiguration config;
+    private final RestTemplate restTemplate;
+
+    public DataCollectorClient(SleepingCellDetectorConfiguration config, RestTemplate restTemplate) {
+        this.config = config;
+        this.restTemplate = restTemplate;
+    }
+
+    public PMEntity getPMData() throws UnsupportedEncodingException {
+        String dataCollectorUrl = config.getDataCollectorBaseUrl() + AGGREGATED_METRICS_URL + getQueryParams();
+        URI uri = URI.create(dataCollectorUrl);
+        ResponseEntity<PMEntity> pmEntityResponse = restTemplate.getForEntity(uri, PMEntity.class);
+        return pmEntityResponse.getBody();
+    }
+
+    private String getQueryParams() throws UnsupportedEncodingException {
+        long slot = config.getPredictionTimeSlot();
+        long count = config.getPredictionSlotNumber();
+        String time = URLEncoder.encode(OffsetDateTime.now().minusSeconds(slot * count).toString(),
+                StandardCharsets.UTF_8.toString());
+        return "?slot=" + slot + "&count=" + count + "&startTime=" + time;
+    }
+
+    public UEInfo getUserEquipment() {
+        String dataCollectorUrl = config.getDataCollectorBaseUrl() + UES_URL;
+        ResponseEntity<UEInfo> userEquipmentResponse = restTemplate.getForEntity(dataCollectorUrl, UEInfo.class);
+        return userEquipmentResponse.getBody();
+    }
+}