Class BinaryFunctions
- java.lang.Object
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- org.apache.commons.imaging.common.BinaryFunctions
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public final class BinaryFunctions extends Object
Convenience methods for various binary and I/O operations.
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Method Summary
All Methods Static Methods Concrete Methods Modifier and Type Method Description static int
charsToQuad(char c1, char c2, char c3, char c4)
static boolean
compareBytes(byte[] a, int aStart, byte[] b, int bStart, int length)
static void
copyStreamToStream(InputStream is, OutputStream os)
static int
findNull(byte[] src)
static int
findNull(byte[] src, int start)
static byte[]
getRAFBytes(RandomAccessFile raf, long pos, int length, String exception)
static byte[]
getStreamBytes(InputStream is)
static byte[]
head(byte[] bytes, int count)
static void
printByteBits(String msg, byte i)
static void
printCharQuad(PrintWriter pw, String msg, int i)
static void
printCharQuad(String msg, int i)
static int
read2Bytes(String name, InputStream is, String exception, ByteOrder byteOrder)
static int
read3Bytes(String name, InputStream is, String exception, ByteOrder byteOrder)
static int
read4Bytes(String name, InputStream is, String exception, ByteOrder byteOrder)
static void
readAndVerifyBytes(InputStream is, byte[] expected, String exception)
static void
readAndVerifyBytes(InputStream is, BinaryConstant expected, String exception)
static byte
readByte(String name, InputStream is, String exception)
static byte[]
readBytes(InputStream is, int count)
static byte[]
readBytes(String name, InputStream is, int length)
static byte[]
readBytes(String name, InputStream is, int length, String exception)
static byte[]
remainingBytes(String name, byte[] bytes, int count)
static void
skipBytes(InputStream is, long length)
static void
skipBytes(InputStream is, long length, String exception)
static byte[]
slice(byte[] bytes, int start, int count)
static boolean
startsWith(byte[] haystack, byte[] needle)
static boolean
startsWith(byte[] haystack, BinaryConstant needle)
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Method Detail
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startsWith
public static boolean startsWith(byte[] haystack, byte[] needle)
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startsWith
public static boolean startsWith(byte[] haystack, BinaryConstant needle)
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readByte
public static byte readByte(String name, InputStream is, String exception) throws IOException
- Throws:
IOException
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readBytes
public static byte[] readBytes(String name, InputStream is, int length) throws IOException
- Throws:
IOException
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readBytes
public static byte[] readBytes(String name, InputStream is, int length, String exception) throws IOException
- Throws:
IOException
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readBytes
public static byte[] readBytes(InputStream is, int count) throws IOException
- Throws:
IOException
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readAndVerifyBytes
public static void readAndVerifyBytes(InputStream is, byte[] expected, String exception) throws ImageReadException, IOException
- Throws:
ImageReadException
IOException
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readAndVerifyBytes
public static void readAndVerifyBytes(InputStream is, BinaryConstant expected, String exception) throws ImageReadException, IOException
- Throws:
ImageReadException
IOException
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skipBytes
public static void skipBytes(InputStream is, long length, String exception) throws IOException
- Throws:
IOException
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remainingBytes
public static byte[] remainingBytes(String name, byte[] bytes, int count)
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slice
public static byte[] slice(byte[] bytes, int start, int count)
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head
public static byte[] head(byte[] bytes, int count)
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compareBytes
public static boolean compareBytes(byte[] a, int aStart, byte[] b, int bStart, int length)
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read4Bytes
public static int read4Bytes(String name, InputStream is, String exception, ByteOrder byteOrder) throws IOException
- Throws:
IOException
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read3Bytes
public static int read3Bytes(String name, InputStream is, String exception, ByteOrder byteOrder) throws IOException
- Throws:
IOException
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read2Bytes
public static int read2Bytes(String name, InputStream is, String exception, ByteOrder byteOrder) throws IOException
- Throws:
IOException
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printCharQuad
public static void printCharQuad(String msg, int i)
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printCharQuad
public static void printCharQuad(PrintWriter pw, String msg, int i)
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printByteBits
public static void printByteBits(String msg, byte i)
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charsToQuad
public static int charsToQuad(char c1, char c2, char c3, char c4)
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findNull
public static int findNull(byte[] src)
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findNull
public static int findNull(byte[] src, int start)
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getRAFBytes
public static byte[] getRAFBytes(RandomAccessFile raf, long pos, int length, String exception) throws IOException
- Throws:
IOException
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skipBytes
public static void skipBytes(InputStream is, long length) throws IOException
- Throws:
IOException
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copyStreamToStream
public static void copyStreamToStream(InputStream is, OutputStream os) throws IOException
- Throws:
IOException
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getStreamBytes
public static byte[] getStreamBytes(InputStream is) throws IOException
- Throws:
IOException
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