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org.codehaus.groovy.grails.io.support
[Java] Class IOUtils

java.lang.Object
  org.codehaus.groovy.grails.io.support.IOUtils

public class IOUtils
extends java.lang.Object

Simple utility methods for file and stream copying. All copy methods use a block size of 4096 bytes, and close all affected streams when done.

Mainly for use within the framework, but also useful for application code.

Authors:
Juergen Hoeller
Since:
06.10.2003

Field Summary
static int BUFFER_SIZE

 
Method Summary
static java.lang.Object[] addAll(java.lang.Object[] array1, java.lang.Object[] array2)

Adds the contents of 1 array to another
static int copy(java.io.File in, java.io.File out)

Copy the contents of the given input File to the given output File.
static void copy(byte[] in, java.io.File out)

Copy the contents of the given byte array to the given output File.
static int copy(java.io.InputStream in, java.io.OutputStream out)

Copy the contents of the given InputStream to the given OutputStream.

static void copy(byte[] in, java.io.OutputStream out)

Copy the contents of the given byte array to the given OutputStream.

static int copy(java.io.Reader in, java.io.Writer out)

Copy the contents of the given Reader to the given Writer.

static void copy(java.lang.String in, java.io.Writer out)

Copy the contents of the given String to the given output Writer.

static byte[] copyToByteArray(java.io.File in)

Copy the contents of the given input File into a new byte array.
static byte[] copyToByteArray(java.io.InputStream in)

Copy the contents of the given InputStream into a new byte array.

static java.lang.String copyToString(java.io.Reader in)

Copy the contents of the given Reader into a String.

 
Methods inherited from class java.lang.Object
java.lang.Object#wait(), java.lang.Object#wait(long, int), java.lang.Object#wait(long), java.lang.Object#equals(java.lang.Object), java.lang.Object#toString(), java.lang.Object#hashCode(), java.lang.Object#getClass(), java.lang.Object#notify(), java.lang.Object#notifyAll()
 

Field Detail

BUFFER_SIZE

public static final int BUFFER_SIZE

 
Method Detail

addAll

public static java.lang.Object[] addAll(java.lang.Object[] array1, java.lang.Object[] array2)
Adds the contents of 1 array to another
Parameters:
array1 - The target array
array2 - The source array
Returns:
The new array

copy

public static int copy(java.io.File in, java.io.File out)
Copy the contents of the given input File to the given output File.
throws:
java.io.IOException in case of I/O errors
Parameters:
in - the file to copy from
out - the file to copy to
Returns:
the number of bytes copied

copy

public static void copy(byte[] in, java.io.File out)
Copy the contents of the given byte array to the given output File.
throws:
IOException in case of I/O errors
Parameters:
in - the byte array to copy from
out - the file to copy to

copy

public static int copy(java.io.InputStream in, java.io.OutputStream out)
Copy the contents of the given InputStream to the given OutputStream. Closes both streams when done.
throws:
IOException in case of I/O errors
Parameters:
in - the stream to copy from
out - the stream to copy to
Returns:
the number of bytes copied

copy

public static void copy(byte[] in, java.io.OutputStream out)
Copy the contents of the given byte array to the given OutputStream. Closes the stream when done.
throws:
IOException in case of I/O errors
Parameters:
in - the byte array to copy from
out - the OutputStream to copy to

copy

public static int copy(java.io.Reader in, java.io.Writer out)
Copy the contents of the given Reader to the given Writer. Closes both when done.
throws:
IOException in case of I/O errors
Parameters:
in - the Reader to copy from
out - the Writer to copy to
Returns:
the number of characters copied

copy

public static void copy(java.lang.String in, java.io.Writer out)
Copy the contents of the given String to the given output Writer. Closes the write when done.
throws:
IOException in case of I/O errors
Parameters:
in - the String to copy from
out - the Writer to copy to

copyToByteArray

public static byte[] copyToByteArray(java.io.File in)
Copy the contents of the given input File into a new byte array.
throws:
IOException in case of I/O errors
Parameters:
in - the file to copy from
Returns:
the new byte array that has been copied to

copyToByteArray

public static byte[] copyToByteArray(java.io.InputStream in)
Copy the contents of the given InputStream into a new byte array. Closes the stream when done.
throws:
IOException in case of I/O errors
Parameters:
in - the stream to copy from
Returns:
the new byte array that has been copied to

copyToString

public static java.lang.String copyToString(java.io.Reader in)
Copy the contents of the given Reader into a String. Closes the reader when done.
throws:
IOException in case of I/O errors
Parameters:
in - the reader to copy from
Returns:
the String that has been copied to

 

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