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authorSimon Rettberg2024-05-08 18:29:26 +0200
committerSimon Rettberg2024-05-08 18:29:26 +0200
commitb8b6703ee06a8aa5e33e625679f61201a4ecb183 (patch)
tree9c4418f3ade4dce2e5f3ae449b10e3b9465cb6a0 /src/main/java
parentRemove empty javadoc tag (diff)
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Util: Add parseLong and formatBytes
Diffstat (limited to 'src/main/java')
-rw-r--r--src/main/java/org/openslx/util/Util.java31
1 files changed, 31 insertions, 0 deletions
diff --git a/src/main/java/org/openslx/util/Util.java b/src/main/java/org/openslx/util/Util.java
index bd610e2..5300cfa 100644
--- a/src/main/java/org/openslx/util/Util.java
+++ b/src/main/java/org/openslx/util/Util.java
@@ -84,6 +84,23 @@ public class Util
}
}
+ /**
+ * Parse the given String as a base10 long.
+ * If the string does not represent a valid long, return the given
+ * default value.
+ *
+ * @param value string representation to parse to a long
+ * @param defaultValue fallback value if given string can't be parsed
+ */
+ public static long parseLong( String value, long defaultValue )
+ {
+ try {
+ return Long.parseLong( value );
+ } catch ( Exception e ) {
+ return defaultValue;
+ }
+ }
+
public static void safeClose( AutoCloseable... closeable )
{
for ( AutoCloseable c : closeable ) {
@@ -133,4 +150,18 @@ public class Util
return System.nanoTime() / 1000;
}
+ private static final String[] UNITS = new String[] { "B", "KB", "MB", "GB", "TB", "PB", "???" };
+
+ public static String formatBytes( double val )
+ {
+ int unit = 0;
+ while ( val > 1024 ) {
+ val /= 1024;
+ unit++;
+ if (unit >= UNITS.length)
+ break;
+ }
+ return String.format( "%.1f %s", val, UNITS[unit] );
+ }
+
}