45 lines
1007 B
Java
45 lines
1007 B
Java
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package net.filebot.similarity;
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import java.io.File;
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import java.nio.file.Files;
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import java.nio.file.attribute.BasicFileAttributes;
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public class TimeStampMetric implements SimilarityMetric {
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@Override
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public float getSimilarity(Object o1, Object o2) {
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long t1 = getTimeStamp(o1);
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long t2 = getTimeStamp(o2);
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if (t1 <= 0 || t2 <= 0)
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return -1;
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float min = Math.min(t1, t2);
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float max = Math.max(t1, t2);
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return min / max;
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}
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public long getTimeStamp(Object obj) {
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if (obj instanceof File) {
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try {
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BasicFileAttributes attr = Files.readAttributes(((File) obj).toPath(), BasicFileAttributes.class);
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long creationTime = attr.creationTime().toMillis();
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if (creationTime > 0) {
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return creationTime;
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} else {
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return attr.lastModifiedTime().toMillis();
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}
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} catch (Throwable e) {
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// ignore Java 6 issues
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return ((File) obj).lastModified();
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}
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} else if (obj instanceof Number) {
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return ((Number) obj).longValue();
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}
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return -1;
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}
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}
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