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Reading and writing files using Java NIO #232

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Merged
merged 2 commits into from
Jan 14, 2023
Merged

Reading and writing files using Java NIO #232

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ba11517
Using Files.readAllBytes instead of custom loop
mkarg Jan 11, 2023
edc8768
Using Files.write instead of OutputStream.write
mkarg Jan 11, 2023
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52 changes: 13 additions & 39 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 @@ -62,14 +62,14 @@
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.Reader;
import java.io.Writer;
import java.net.URL;
import java.nio.charset.Charset;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.nio.file.StandardOpenOption;
import java.security.SecureRandom;
Expand Down Expand Up @@ -355,33 +355,16 @@ public static String fileRead( File file )
public static String fileRead( File file, String encoding )
throws IOException
{
StringBuilder buf = new StringBuilder();

try ( Reader reader = getInputStreamReader( file, encoding ) )
{
int count;
char[] b = new char[512];
while ( ( count = reader.read( b ) ) >= 0 ) // blocking read
{
buf.append( b, 0, count );
}
}

return buf.toString();
return fileRead( file.toPath(), encoding );
}

private static InputStreamReader getInputStreamReader( File file, String encoding ) throws IOException
private static String fileRead( Path path, String encoding )
throws IOException
{
if ( encoding != null )
{
return new InputStreamReader( Files.newInputStream( file.toPath() ), encoding );
}
else
{
return new InputStreamReader( Files.newInputStream( file.toPath() ) );
}
byte[] bytes = Files.readAllBytes( path );
return encoding != null ? new String( bytes, encoding ) : new String( bytes );
}

/**
* Appends data to a file. The file will be created if it does not exist. Note: the data is written with platform
* encoding
Expand Down Expand Up @@ -481,23 +464,14 @@ public static void fileWrite( File file, String data )
public static void fileWrite( File file, String encoding, String data )
throws IOException
{
try ( Writer writer = getOutputStreamWriter( file, encoding ) )
{
writer.write( data );
}
fileWrite( file.toPath(), encoding, data );
}

private static OutputStreamWriter getOutputStreamWriter( File file, String encoding ) throws IOException

private static void fileWrite( Path path, String encoding, String data )
throws IOException
{
OutputStream out = Files.newOutputStream( file.toPath() );
if ( encoding != null )
{
return new OutputStreamWriter( out, encoding );
}
else
{
return new OutputStreamWriter( out );
}
byte[] bytes = encoding != null ? data.getBytes( encoding ) : data.getBytes();
Files.write( path, bytes );
}

/**
Expand Down