39 lines
1.2 KiB
Java
39 lines
1.2 KiB
Java
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package net.heartshield.data;
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import java.io.Serializable;
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/**
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* Primary key for identifying a Measurement.
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*
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* @author David Madl (git@abanbytes.eu)
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* @date 2017-04-10
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*/
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public class MeasurementId implements Serializable {
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public String appId;
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public long startTime;
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public MeasurementId(String appId, long startTime) {
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this.appId = appId;
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this.startTime = startTime;
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}
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public static MeasurementId parse(String measurementId) {
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int underscore = measurementId.indexOf("_");
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if(underscore == -1)
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throw new IllegalArgumentException("could not parse measurementId " + measurementId + " since it did not contain '_'.");
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return new MeasurementId(measurementId.substring(underscore+1), Long.parseLong(measurementId.substring(0, underscore)));
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}
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public String toString() {
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return startTime + "_" + appId;
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}
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@Override
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public boolean equals(Object obj) {
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if(obj == null || !(obj instanceof MeasurementId))
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return false;
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MeasurementId other = (MeasurementId) obj;
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return (this.startTime == other.startTime && this.appId.equals(other.appId));
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}
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}
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