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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.a1pesimulator.util;
import java.io.File;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import org.onap.a1pesimulator.data.cell.CellList;
import org.onap.a1pesimulator.data.ue.UserEquipment;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;
@Service
public class TopologyReader {
private final String topologyCellConfigFile;
private final String topologyUeConfigFile;
private long topologyCellLastModified = 0L;
private long topologyUeLastModified = 0L;
private TopologyReader(@Value("${topology.cell.config.file}") final String topologyCellConfigFile,
@Value("${topology.ue.config.file}") final String topologyUeConfigFile) {
this.topologyCellConfigFile = topologyCellConfigFile;
this.topologyUeConfigFile = topologyUeConfigFile;
}
public CellList loadCellTopology() {
final File file = new File(topologyCellConfigFile);
topologyCellLastModified = file.lastModified();
if (!file.exists()) {
return new CellList();
}
return JsonUtils.INSTANCE.deserializeFromFile(topologyCellConfigFile, CellList.class);
}
public Collection<UserEquipment> loadUeTopology() {
final File file = new File(topologyUeConfigFile);
topologyUeLastModified = file.lastModified();
if (!file.exists()) {
return Collections.emptyList();
}
final UserEquipment[] userEquipments =
JsonUtils.INSTANCE.deserializeFromFile(topologyUeConfigFile, UserEquipment[].class);
return Arrays.asList(userEquipments);
}
public boolean topologyCellHasChanged() {
return topologyCellLastModified != new File(topologyCellConfigFile).lastModified();
}
public boolean topologyUeHasChanged() {
return topologyUeLastModified != new File(topologyUeConfigFile).lastModified();
}
}
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