Package org.apache.poi.util
Class HexDump
java.lang.Object
org.apache.poi.util.HexDump
dump data in hexadecimal format
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Field Summary
Fields -
Method Summary
Modifier and TypeMethodDescriptionstatic String
byteToHex
(int value) static String
dump
(byte[] data, long offset, int index) dump an array of bytes to a Stringstatic String
dump
(byte[] data, long offset, int index, int length) dump an array of bytes to a Stringstatic void
dump
(byte[] data, long offset, OutputStream stream, int index) dump an array of bytes to an OutputStreamstatic void
dump
(byte[] data, long offset, OutputStream stream, int index, int length) dump an array of bytes to an OutputStreamstatic void
dump
(InputStream in, PrintStream out, int start, int bytesToDump) DumpsbytesToDump
bytes to an output stream.static String
intToHex
(int value) static String
longToHex
(long value) static void
static String
shortToHex
(int value) static char
toAscii
(int dataB) static String
toHex
(byte value) Converts the parameter to a hex value.static String
toHex
(byte[] value) Converts the parameter to a hex value.static String
toHex
(byte[] value, int bytesPerLine) Converts the parameter to a hex value breaking the results into lines.static String
toHex
(int value) Converts the parameter to a hex value.static String
toHex
(long value) Converts the parameter to a hex value.static String
toHex
(short value) Converts the parameter to a hex value.static String
toHex
(short[] value) Converts the parameter to a hex value.static String
Converts the string to a string of hex values.
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Field Details
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EOL
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UTF8
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Method Details
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dump
public static void dump(byte[] data, long offset, OutputStream stream, int index, int length) throws IOException, ArrayIndexOutOfBoundsException, IllegalArgumentException dump an array of bytes to an OutputStream- Parameters:
data
- the byte array to be dumpedoffset
- its offset, whatever that might meanstream
- the OutputStream to which the data is to be writtenindex
- initial index into the byte arraylength
- number of characters to output- Throws:
IOException
- is thrown if anything goes wrong writing the data to streamArrayIndexOutOfBoundsException
- if the index is outside the data array's boundsIllegalArgumentException
- if the output stream is null
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dump
public static void dump(byte[] data, long offset, OutputStream stream, int index) throws IOException, ArrayIndexOutOfBoundsException, IllegalArgumentException dump an array of bytes to an OutputStream- Parameters:
data
- the byte array to be dumpedoffset
- its offset, whatever that might meanstream
- the OutputStream to which the data is to be writtenindex
- initial index into the byte array- Throws:
IOException
- is thrown if anything goes wrong writing the data to streamArrayIndexOutOfBoundsException
- if the index is outside the data array's boundsIllegalArgumentException
- if the output stream is null
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dump
dump an array of bytes to a String- Parameters:
data
- the byte array to be dumpedoffset
- its offset, whatever that might meanindex
- initial index into the byte array- Returns:
- output string
- Throws:
ArrayIndexOutOfBoundsException
- if the index is outside the data array's bounds
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dump
dump an array of bytes to a String- Parameters:
data
- the byte array to be dumpedoffset
- its offset, whatever that might meanindex
- initial index into the byte arraylength
- number of characters to output- Returns:
- output string
- Throws:
ArrayIndexOutOfBoundsException
- if the index is outside the data array's bounds
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toAscii
public static char toAscii(int dataB) -
toHex
Converts the parameter to a hex value.- Parameters:
value
- The value to convert- Returns:
- A String representing the array of bytes
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toHex
Converts the parameter to a hex value.- Parameters:
value
- The value to convert- Returns:
- A String representing the array of shorts
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toHex
Converts the parameter to a hex value breaking the results into lines.
- Parameters:
value
- The value to convertbytesPerLine
- The maximum number of bytes per line. The next byte will be written to a new line- Returns:
- A String representing the array of bytes
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toHex
Converts the parameter to a hex value.- Parameters:
value
- The value to convert- Returns:
- The result right padded with 0
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toHex
Converts the parameter to a hex value.- Parameters:
value
- The value to convert- Returns:
- The result right padded with 0
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toHex
Converts the parameter to a hex value.- Parameters:
value
- The value to convert- Returns:
- The result right padded with 0
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toHex
Converts the parameter to a hex value.- Parameters:
value
- The value to convert- Returns:
- The result right padded with 0
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toHex
Converts the string to a string of hex values.- Parameters:
value
- The value to convert- Returns:
- The resulted hex string
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dump
public static void dump(InputStream in, PrintStream out, int start, int bytesToDump) throws IOException DumpsbytesToDump
bytes to an output stream.- Parameters:
in
- The stream to read fromout
- The output streamstart
- The index to use as the starting position for the left hand side labelbytesToDump
- The number of bytes to output. Use -1 to read until the end of file.- Throws:
IOException
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longToHex
- Returns:
- string of 16 (zero padded) uppercase hex chars and prefixed with '0x'
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intToHex
- Returns:
- string of 8 (zero padded) uppercase hex chars and prefixed with '0x'
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shortToHex
- Returns:
- string of 4 (zero padded) uppercase hex chars and prefixed with '0x'
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byteToHex
- Returns:
- string of 2 (zero padded) uppercase hex chars and prefixed with '0x'
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main
- Throws:
IOException
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