package baseStation;
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import java.io.FileInputStream;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.io.OutputStreamWriter;
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import java.nio.charset.StandardCharsets;
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import java.util.Properties;
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/**
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* 基站信息类，负责加载/更新 basestation.properties。
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*/
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public class BaseStation {
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private static final String PROPERTIES_FILE = "basestation.properties";
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private String deviceId;
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private String installationCoordinates;
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private String iotSimCardNumber;
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private String deviceActivationTime;
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private String dataUpdateTime;
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public BaseStation() {
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setDefaults();
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}
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/**
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* 从 basestation.properties 加载数据，失败时回落为默认值 -1。
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*/
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public void load() {
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Properties properties = new Properties();
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try (FileInputStream input = new FileInputStream(PROPERTIES_FILE)) {
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properties.load(input);
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this.deviceId = properties.getProperty("deviceId", "-1");
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this.installationCoordinates = properties.getProperty("installationCoordinates", "-1");
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this.iotSimCardNumber = properties.getProperty("iotSimCardNumber", "-1");
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this.deviceActivationTime = properties.getProperty("deviceActivationTime", "-1");
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this.dataUpdateTime = properties.getProperty("dataUpdateTime", "-1");
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} catch (IOException ex) {
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System.err.println("无法读取 basestation.properties: " + ex.getMessage());
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setDefaults();
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}
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}
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private void setDefaults() {
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this.deviceId = "-1";
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this.installationCoordinates = "-1";
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this.iotSimCardNumber = "-1";
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this.deviceActivationTime = "-1";
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this.dataUpdateTime = "-1";
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}
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/**
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* 根据设备编号更新属性并持久化。
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*/
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public void updateByDeviceId(String newDeviceId,
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String newInstallationCoordinates,
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String newIotSimCardNumber,
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String newActivationTime,
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String newUpdateTime) {
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if (newDeviceId == null || newDeviceId.trim().isEmpty()) {
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throw new IllegalArgumentException("设备编号不能为空");
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}
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this.deviceId = newDeviceId.trim();
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this.installationCoordinates = valueOrDefault(newInstallationCoordinates);
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this.iotSimCardNumber = valueOrDefault(newIotSimCardNumber);
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this.deviceActivationTime = valueOrDefault(newActivationTime);
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this.dataUpdateTime = valueOrDefault(newUpdateTime);
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save();
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}
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private String valueOrDefault(String value) {
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if (value == null || value.trim().isEmpty()) {
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return "-1";
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}
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return value.trim();
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}
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/**
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* 更新基站安装坐标并立即持久化到 basestation.properties。
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*/
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public void updateInstallationCoordinates(String newInstallationCoordinates) {
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this.installationCoordinates = valueOrDefault(newInstallationCoordinates);
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save();
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}
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private void save() {
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Properties properties = new Properties();
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properties.setProperty("deviceId", deviceId);
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properties.setProperty("installationCoordinates", installationCoordinates);
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properties.setProperty("iotSimCardNumber", iotSimCardNumber);
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properties.setProperty("deviceActivationTime", deviceActivationTime);
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properties.setProperty("dataUpdateTime", dataUpdateTime);
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try (FileOutputStream output = new FileOutputStream(PROPERTIES_FILE);
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OutputStreamWriter writer = new OutputStreamWriter(output, StandardCharsets.UTF_8)) {
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properties.store(writer, "Base station properties");
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} catch (IOException ex) {
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System.err.println("无法保存 basestation.properties: " + ex.getMessage());
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}
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}
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public String getDeviceId() {
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return deviceId;
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}
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public String getInstallationCoordinates() {
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return installationCoordinates;
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}
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public String getIotSimCardNumber() {
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return iotSimCardNumber;
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}
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public String getDeviceActivationTime() {
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return deviceActivationTime;
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}
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public String getDataUpdateTime() {
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return dataUpdateTime;
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}
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@Override
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public String toString() {
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return "BaseStation{" +
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"deviceId='" + deviceId + '\'' +
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", installationCoordinates='" + installationCoordinates + '\'' +
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", iotSimCardNumber='" + iotSimCardNumber + '\'' +
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", deviceActivationTime='" + deviceActivationTime + '\'' +
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", dataUpdateTime='" + dataUpdateTime + '\'' +
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'}';
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}
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}
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