com.badlogic.gdx.utils

Class StreamUtils

java.lang.Object

com.badlogic.gdx.utils.StreamUtils

public final class StreamUtils
extends Object

Provides utility methods to copy streams.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	StreamUtils.OptimizedByteArrayOutputStream A ByteArrayOutputStream which avoids copying of the byte array if possible.

Field Summary

Fields

Modifier and Type	Field and Description
static int	DEFAULT_BUFFER_SIZE
static byte[]	EMPTY_BYTES

Constructor Summary

Constructors

Constructor and Description
StreamUtils()

Method Summary

Modifier and Type	Method and Description
static void	closeQuietly(Closeable c) Close and ignore all errors.
static void	copyStream(InputStream input, ByteBuffer output) Allocates a 4096 byte[] for use as a temporary buffer and calls copyStream(InputStream, OutputStream, byte[]).
static int	copyStream(InputStream input, ByteBuffer output, byte[] buffer) Copy the data from an InputStream to a ByteBuffer, using the specified byte[] as a temporary buffer.
static void	copyStream(InputStream input, ByteBuffer output, int bufferSize) Allocates a byte[] of the specified size for use as a temporary buffer and calls copyStream(InputStream, ByteBuffer, byte[]).
static void	copyStream(InputStream input, OutputStream output) Allocates a 4096 byte[] for use as a temporary buffer and calls copyStream(InputStream, OutputStream, byte[]).
static void	copyStream(InputStream input, OutputStream output, byte[] buffer) Copy the data from an InputStream to an OutputStream, using the specified byte[] as a temporary buffer.
static void	copyStream(InputStream input, OutputStream output, int bufferSize) Allocates a byte[] of the specified size for use as a temporary buffer and calls copyStream(InputStream, OutputStream, byte[]).
static byte[]	copyStreamToByteArray(InputStream input) Copy the data from an InputStream to a byte array.
static byte[]	copyStreamToByteArray(InputStream input, int estimatedSize) Copy the data from an InputStream to a byte array.
static String	copyStreamToString(InputStream input) Calls copyStreamToString(InputStream, int, String) using the input's available size and the platform's default charset.
static String	copyStreamToString(InputStream input, int estimatedSize) Calls copyStreamToString(InputStream, int, String) using the platform's default charset.
static String	copyStreamToString(InputStream input, int estimatedSize, String charset) Copy the data from an InputStream to a string using the specified charset.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

DEFAULT_BUFFER_SIZE

public static final int DEFAULT_BUFFER_SIZE

See Also:

Constant Field Values

EMPTY_BYTES

public static final byte[] EMPTY_BYTES

Constructor Detail

StreamUtils

public StreamUtils()

Method Detail

copyStream

public static void copyStream(InputStream input,
                              OutputStream output)
                       throws IOException

Allocates a 4096 byte[] for use as a temporary buffer and calls copyStream(InputStream, OutputStream, byte[]).

Throws:

IOException

copyStream

public static void copyStream(InputStream input,
                              OutputStream output,
                              int bufferSize)
                       throws IOException

Allocates a byte[] of the specified size for use as a temporary buffer and calls copyStream(InputStream, OutputStream, byte[]).

Throws:

IOException

copyStream

public static void copyStream(InputStream input,
                              OutputStream output,
                              byte[] buffer)
                       throws IOException

Copy the data from an InputStream to an OutputStream, using the specified byte[] as a temporary buffer. The stream is not closed.

Throws:

IOException

copyStream

public static void copyStream(InputStream input,
                              ByteBuffer output)
                       throws IOException

Allocates a 4096 byte[] for use as a temporary buffer and calls copyStream(InputStream, OutputStream, byte[]).

Throws:

IOException

copyStream

public static void copyStream(InputStream input,
                              ByteBuffer output,
                              int bufferSize)
                       throws IOException

Allocates a byte[] of the specified size for use as a temporary buffer and calls copyStream(InputStream, ByteBuffer, byte[]).

Throws:

IOException

copyStream

public static int copyStream(InputStream input,
                             ByteBuffer output,
                             byte[] buffer)
                      throws IOException

Copy the data from an InputStream to a ByteBuffer, using the specified byte[] as a temporary buffer. The buffer's limit is increased by the number of bytes copied, the position is left unchanged. The stream is not closed.

Parameters:

output - Must be a direct Buffer with native byte order and the buffer MUST be large enough to hold all the bytes in the stream. No error checking is performed.

Returns:

the number of bytes copied.

Throws:

IOException

copyStreamToByteArray

public static byte[] copyStreamToByteArray(InputStream input)
                                    throws IOException

Copy the data from an InputStream to a byte array. The stream is not closed.

Throws:

IOException

copyStreamToByteArray

public static byte[] copyStreamToByteArray(InputStream input,
                                           int estimatedSize)
                                    throws IOException

Copy the data from an InputStream to a byte array. The stream is not closed.

Parameters:

estimatedSize - Used to allocate the output byte[] to possibly avoid an array copy.

Throws:

IOException

copyStreamToString

public static String copyStreamToString(InputStream input)
                                 throws IOException

Calls copyStreamToString(InputStream, int, String) using the input's available size and the platform's default charset.

Throws:

IOException

copyStreamToString

public static String copyStreamToString(InputStream input,
                                        int estimatedSize)
                                 throws IOException

Calls copyStreamToString(InputStream, int, String) using the platform's default charset.

Throws:

IOException

copyStreamToString

public static String copyStreamToString(InputStream input,
                                        int estimatedSize,
                                        String charset)
                                 throws IOException

Copy the data from an InputStream to a string using the specified charset.

Parameters:

estimatedSize - Used to allocate the output buffer to possibly avoid an array copy.

charset - May be null to use the platform's default charset.

Throws:

IOException

closeQuietly

public static void closeQuietly(Closeable c)

Close and ignore all errors.