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/*
* 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 new StringBuffer().append("?slot=").append(slot)
.append("&count=").append(count)
.append("&startTime=").append(time)
.toString();
}
public UEInfo getUserEquipment() {
String dataCollectorUrl = config.getDataCollectorBaseUrl() + UES_URL;
ResponseEntity<UEInfo> userEquipmentResponse = restTemplate.getForEntity(dataCollectorUrl, UEInfo.class);
return userEquipmentResponse.getBody();
}
}
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