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[New] Added new helper DataUnit

This commit is contained in:
Robert von Burg 2019-04-08 16:12:15 +02:00
parent 961e93fa35
commit 54d76b1264
2 changed files with 64 additions and 13 deletions
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59
li.strolch.utils/src/main/java/li/strolch/utils/DataUnit.java Normal file
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@ -0,0 +1,59 @@
package li.strolch.utils;
public enum DataUnit {
Bytes("bytes", 1),
KiloBytes("KB", Bytes.bytesFactor * 1000),
MegaBytes("MB", KiloBytes.bytesFactor * 1000),
GigaBytes("GB", MegaBytes.bytesFactor * 1000),
TeraBytes("TB", GigaBytes.bytesFactor * 1000),
PetaBytes("PB", TeraBytes.bytesFactor * 1000);
private final String uom;
private final long bytesFactor;
DataUnit(String uom, long bytesFactor) {
this.uom = uom;
this.bytesFactor = bytesFactor;
}
public String getInterpretation() {
return "DataUnit";
}
public String getUom() {
return this.uom;
}
public long getBytesFactor() {
return this.bytesFactor;
}
public double convertToBytes(long value) {
return value * (double) this.bytesFactor;
}
public long roundBytesToUnit(long bytes) {
return bytes / this.bytesFactor;
}
public String humanizeBytesValue(long value) {
double bytes = convertToBytes(value);
if (bytes < KiloBytes.bytesFactor)
return String.format("%f bytes", bytes);
if (bytes < MegaBytes.bytesFactor)
return String.format("%.1f KB", (bytes / (double) KiloBytes.bytesFactor));
if (bytes < GigaBytes.bytesFactor)
return String.format("%.1f MB", (bytes / (double) MegaBytes.bytesFactor));
if (bytes < TeraBytes.bytesFactor)
return String.format("%.1f GB", (bytes / (double) GigaBytes.bytesFactor));
if (bytes < PetaBytes.bytesFactor)
return String.format("%.1f TB", (bytes / (double) GigaBytes.bytesFactor));
return String.format("%.1f PB", (bytes / (double) PetaBytes.bytesFactor));
}
}

18
li.strolch.utils/src/main/java/li/strolch/utils/helper/FileHelper.java
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@ -24,6 +24,7 @@ import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import li.strolch.utils.DataUnit;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@ -459,8 +460,8 @@ public class FileHelper {
*
* @return the humanized form of the files size
*/
public final static String humanizeFileSize(File file) {
return FileHelper.humanizeFileSize(file.length());
public static String humanizeFileSize(File file) {
return humanizeFileSize(file.length());
}
/**
@ -473,17 +474,8 @@ public class FileHelper {
* @return the humanized form of the files size
*/
@SuppressWarnings("nls")
public final static String humanizeFileSize(long fileSize) {
if (fileSize < 1024)
return String.format("%d bytes", fileSize);
if (fileSize < 1048576)
return String.format("%.1f KB", (fileSize / 1024.0d));
if (fileSize < 1073741824)
return String.format("%.1f MB", (fileSize / 1048576.0d));
return String.format("%.1f GB", (fileSize / 1073741824.0d));
public static String humanizeFileSize(long fileSize) {
return DataUnit.Bytes.humanizeBytesValue(fileSize);
}
/**