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offloading file copy work to operating system allows potential speedup #12

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Merged
merged 1 commit into from
Jun 14, 2016
Merged

offloading file copy work to operating system allows potential speedup #12

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16 changes: 16 additions & 0 deletions src/main/java/org/codehaus/plexus/util/FileUtils.java
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Original file line number Diff line number Diff line change
Expand Up @@ -1104,6 +1104,16 @@ public static void copyFile( final File source, final File destination )

private static void doCopyFile( File source, File destination )
throws IOException
{
// offload to operating system if supported
if ( Java7Detector.isJava7() )
doCopyFileUsingNewIO( source, destination );
else
doCopyFileUsingLegacyIO( source, destination );
}

private static void doCopyFileUsingLegacyIO( File source, File destination )
throws IOException
{
FileInputStream fis = null;
FileOutputStream fos = null;
Expand Down Expand Up @@ -1141,6 +1151,12 @@ private static void doCopyFile( File source, File destination )
}
}

private static void doCopyFileUsingNewIO( File source, File destination )
throws IOException
{
NioFiles.copy( source, destination );
}

/**
* Copy file from source to destination only if source timestamp is later than the destination timestamp.
* The directories up to <code>destination</code> will be created if they don't already exist.
Expand Down