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Use better method names. Document possible ArrayIndexOutOfBoundsException and StringIndexOutOfBoundsException. 

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/lang/trunk@1393792 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Joerg Schaible 2012-10-03 22:05:11 +00:00
parent ca9cbf976e
commit 0b748abd18
2 changed files with 905 additions and 740 deletions
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242
src/main/java/org/apache/commons/lang3/Conversion.java
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@ -39,14 +39,14 @@ import java.util.UUID;
* - "Hex": a String containing hexadecimal digits
* - "HexDigit": a Char containing a hexadecimal digit
* Endianness field: little endian is the default, in this case the field is absent. In case of big endian, the field is "Be".
* Bit ordering: Lsb0 is the default, in this case the field is absent. In case of Msb0, the field is "M0".
* Bit ordering: Lsb0 is the default, in this case the field is absent. In case of Msb0, the field is "Msb0".
*
* Example: intBeM0ToHex convert an int with big endian byte order and Msb0 bit order into its hexadecimal string representation
* Example: intBeMsb0ToHex convert an int with big endian byte order and Msb0 bit order into its hexadecimal string representation
* </pre>
* <p>
* Most of the methods provide only default encoding for destination, this limits the number of
* ways to do one thing. Unless you are dealing with data from/to outside of the JVM platform,
* you should not need to use "Be" and "M0" methods.
* you should not need to use "Be" and "Msb0" methods.
* </p>
* <p>
* Development status: work on going, only a part of the little endian, Lsb0 methods implemented
@ -92,7 +92,7 @@ public class Conversion {
* @return an int equals to {@code hexDigit}
* @throws IllegalArgumentException if {@code hexDigit} is not a hexadecimal digit
*/
public static int hexDigitM0ToInt(char hexDigit) {
public static int hexDigitMsb0ToInt(char hexDigit) {
switch (hexDigit) {
case '0':
return 0x0;
@ -151,7 +151,7 @@ public class Conversion {
* @return a boolean array with the binary representation of {@code hexDigit}
* @throws IllegalArgumentException if {@code hexDigit} is not a hexadecimal digit
*/
public static boolean[] hexDigitToBools(char hexDigit) {
public static boolean[] hexDigitToBoolArray(char hexDigit) {
switch (hexDigit) {
case '0':
return new boolean[]{false, false, false, false};
@ -210,7 +210,7 @@ public class Conversion {
* @return a boolean array with the binary representation of {@code hexDigit}
* @throws IllegalArgumentException if {@code hexDigit} is not a hexadecimal digit
*/
public static boolean[] hexDigitM0ToBools(char hexDigit) {
public static boolean[] hexDigitMsb0ToBoolArray(char hexDigit) {
switch (hexDigit) {
case '0':
return new boolean[]{false, false, false, false};
@ -270,8 +270,8 @@ public class Conversion {
* @throws IllegalArgumentException if {@code src} is empty
* @throws NullPointerException if {@code src} is {@code null}
*/
public static char boolsToHexDigit(boolean[] src) {
return boolsToHexDigit(src, 0);
public static char boolArrayToHexDigit(boolean[] src) {
return boolArrayToHexDigit(src, 0);
}
/**
@ -288,9 +288,9 @@ public class Conversion {
* @throws IllegalArgumentException if {@code src} is empty
* @throws NullPointerException if {@code src} is {@code null}
*/
public static char boolsToHexDigit(boolean[] src, int srcPos) {
public static char boolArrayToHexDigit(boolean[] src, int srcPos) {
if (src.length == 0) {
throw new IllegalArgumentException("Cannot convert empty array.");
throw new IllegalArgumentException("Cannot convert an empty array.");
}
if (src.length > srcPos + 3 && src[srcPos + 3]) {
if (src.length > srcPos + 2 && src[srcPos + 2]) {
@ -369,8 +369,8 @@ public class Conversion {
* {@code src.length > 8}
* @throws NullPointerException if {@code src} is {@code null}
*/
public static char boolsToHexDigitM0_4bits(boolean[] src) {
return boolsToHexDigitM0_4bits(src, 0);
public static char boolArrayToHexDigitMsb0_4bits(boolean[] src) {
return boolArrayToHexDigitMsb0_4bits(src, 0);
}
/**
@ -389,7 +389,7 @@ public class Conversion {
* {@code src.length - srcPos < 4}
* @throws NullPointerException if {@code src} is {@code null}
*/
public static char boolsToHexDigitM0_4bits(boolean[] src, int srcPos) {
public static char boolArrayToHexDigitMsb0_4bits(boolean[] src, int srcPos) {
if (src.length > 8) {
throw new IllegalArgumentException("src.length>8: src.length=" + src.length);
}
@ -477,8 +477,8 @@ public class Conversion {
* @throws IllegalArgumentException if {@code src} is empty
* @throws NullPointerException if {@code src} is {@code null}
*/
public static char boolsBeM0ToHexDigit(boolean[] src) {
return boolsBeM0ToHexDigit(src, 0);
public static char boolArrayBeMsb0ToHexDigit(boolean[] src) {
return boolArrayBeMsb0ToHexDigit(src, 0);
}
/**
@ -497,9 +497,9 @@ public class Conversion {
* @throws IllegalArgumentException if {@code src} is empty
* @throws NullPointerException if {@code src} is {@code null}
*/
public static char boolsBeM0ToHexDigit(boolean[] src, int srcPos) {
public static char boolArrayBeMsb0ToHexDigit(boolean[] src, int srcPos) {
if (src.length == 0) {
throw new IllegalArgumentException("Cannot convert empty array.");
throw new IllegalArgumentException("Cannot convert an empty array.");
}
int beSrcPos = src.length - 1 - srcPos;
int srcLen = Math.min(4, beSrcPos + 1);
@ -614,7 +614,7 @@ public class Conversion {
* @return a hexadecimal digit representing the 4 lsb of {@code nibble}
* @throws IllegalArgumentException if {@code nibble < 0} or {@code nibble > 15}
*/
public static char intToHexDigitM0(int nibble) {
public static char intToHexDigitMsb0(int nibble) {
switch (nibble) {
case 0x0:
return '0';
@ -667,9 +667,11 @@ public class Conversion {
* @param nInts the number of ints to convert
* @return a long containing the selected bits
* @throws IllegalArgumentException if {@code (nInts-1)*32+dstPos >= 64}
* @throws NullPointerException if {@code src} is {@code null}
* @throws ArrayIndexOutOfBoundsException if {@code srcPos + nInts > src.length}
*/
public static long intsToLong(int[] src, int srcPos, long dstInit, int dstPos, int nInts) {
if (0 == nInts) {
public static long intArrayToLong(int[] src, int srcPos, long dstInit, int dstPos, int nInts) {
if ((src.length == 0 && srcPos == 0) || 0 == nInts) {
return dstInit;
}
if ((nInts - 1) * 32 + dstPos >= 64) {
@ -700,11 +702,13 @@ public class Conversion {
* @param dstPos the position of the lsb, in bits, in the result long
* @param nShorts the number of shorts to convert
* @return a long containing the selected bits
* @throws NullPointerException if {@code src} is {@code null}
* @throws IllegalArgumentException if {@code (nShorts-1)*16+dstPos >= 64}
* @throws ArrayIndexOutOfBoundsException if {@code srcPos + nShorts > src.length}
*/
public static long shortsToLong(short[] src, int srcPos, long dstInit, int dstPos,
public static long shortArrayToLong(short[] src, int srcPos, long dstInit, int dstPos,
int nShorts) {
if (0 == nShorts) {
if ((src.length == 0 && srcPos == 0) || 0 == nShorts) {
return dstInit;
}
if ((nShorts - 1) * 16 + dstPos >= 64) {
@ -735,10 +739,13 @@ public class Conversion {
* @param dstPos the position of the lsb, in bits, in the result int
* @param nShorts the number of shorts to convert
* @return a int containing the selected bits
* @throws NullPointerException if {@code src} is {@code null}
* @throws IllegalArgumentException if {@code (nShorts-1)*16+dstPos >= 32}
* @throws ArrayIndexOutOfBoundsException if {@code srcPos + nShorts > src.length}
*/
public static int shortsToInt(short[] src, int srcPos, int dstInit, int dstPos, int nShorts) {
if (0 == nShorts) {
public static int shortArrayToInt(short[] src, int srcPos, int dstInit, int dstPos,
int nShorts) {
if ((src.length == 0 && srcPos == 0) || 0 == nShorts) {
return dstInit;
}
if ((nShorts - 1) * 16 + dstPos >= 32) {
@ -769,10 +776,13 @@ public class Conversion {
* @param dstPos the position of the lsb, in bits, in the result long
* @param nBytes the number of bytes to convert
* @return a long containing the selected bits
* @throws NullPointerException if {@code src} is {@code null}
* @throws IllegalArgumentException if {@code (nBytes-1)*8+dstPos >= 64}
* @throws ArrayIndexOutOfBoundsException if {@code srcPos + nBytes > src.length}
*/
public static long bytesToLong(byte[] src, int srcPos, long dstInit, int dstPos, int nBytes) {
if (0 == nBytes) {
public static long byteArrayToLong(byte[] src, int srcPos, long dstInit, int dstPos,
int nBytes) {
if ((src.length == 0 && srcPos == 0) || 0 == nBytes) {
return dstInit;
}
if ((nBytes - 1) * 8 + dstPos >= 64) {
@ -803,10 +813,12 @@ public class Conversion {
* @param dstPos the position of the lsb, in bits, in the result int
* @param nBytes the number of bytes to convert
* @return a int containing the selected bits
* @throws NullPointerException if {@code src} is {@code null}
* @throws IllegalArgumentException if {@code (nBytes-1)*8+dstPos >= 32}
* @throws ArrayIndexOutOfBoundsException if {@code srcPos + nBytes > src.length}
*/
public static int bytesToInt(byte[] src, int srcPos, int dstInit, int dstPos, int nBytes) {
if (0 == nBytes) {
public static int byteArrayToInt(byte[] src, int srcPos, int dstInit, int dstPos, int nBytes) {
if ((src.length == 0 && srcPos == 0) || 0 == nBytes) {
return dstInit;
}
if ((nBytes - 1) * 8 + dstPos >= 32) {
@ -837,11 +849,13 @@ public class Conversion {
* @param dstPos the position of the lsb, in bits, in the result short
* @param nBytes the number of bytes to convert
* @return a short containing the selected bits
* @throws NullPointerException if {@code src} is {@code null}
* @throws IllegalArgumentException if {@code (nBytes-1)*8+dstPos >= 16}
* @throws ArrayIndexOutOfBoundsException if {@code srcPos + nBytes > src.length}
*/
public static short bytesToShort(byte[] src, int srcPos, short dstInit, int dstPos,
public static short byteArrayToShort(byte[] src, int srcPos, short dstInit, int dstPos,
int nBytes) {
if (0 == nBytes) {
if ((src.length == 0 && srcPos == 0) || 0 == nBytes) {
return dstInit;
}
if ((nBytes - 1) * 8 + dstPos >= 16) {
@ -870,21 +884,21 @@ public class Conversion {
* conversion
* @param dstInit initial value of the destination long
* @param dstPos the position of the lsb, in bits, in the result long
* @param nHexs the number of Chars to convert
* @param nHex the number of Chars to convert
* @return a long containing the selected bits
* @throws IllegalArgumentException if {@code (nHexs-1)*4+dstPos >= 64}
*/
public static long hexsToLong(String src, int srcPos, long dstInit, int dstPos, int nHexs) {
if (0 == nHexs) {
public static long hexToLong(String src, int srcPos, long dstInit, int dstPos, int nHex) {
if (0 == nHex) {
return dstInit;
}
if ((nHexs - 1) * 4 + dstPos >= 64) {
if ((nHex - 1) * 4 + dstPos >= 64) {
throw new IllegalArgumentException(
"(nHexs-1)*4+dstPos is greather or equal to than 64");
}
long out = dstInit;
int shift = 0;
for (int i = 0; i < nHexs; i++ ) {
for (int i = 0; i < nHex; i++ ) {
shift = i * 4 + dstPos;
long bits = (0xfL & hexDigitToInt(src.charAt(i + srcPos))) << shift;
long mask = 0xfL << shift;
@ -904,21 +918,21 @@ public class Conversion {
* conversion
* @param dstInit initial value of the destination int
* @param dstPos the position of the lsb, in bits, in the result int
* @param nHexs the number of Chars to convert
* @param nHex the number of Chars to convert
* @return a int containing the selected bits
* @throws IllegalArgumentException if {@code (nHexs-1)*4+dstPos >= 32}
*/
public static int hexsToInt(String src, int srcPos, int dstInit, int dstPos, int nHexs) {
if (0 == nHexs) {
public static int hexToInt(String src, int srcPos, int dstInit, int dstPos, int nHex) {
if (0 == nHex) {
return dstInit;
}
if ((nHexs - 1) * 4 + dstPos >= 32) {
if ((nHex - 1) * 4 + dstPos >= 32) {
throw new IllegalArgumentException(
"(nHexs-1)*4+dstPos is greather or equal to than 32");
}
int out = dstInit;
int shift = 0;
for (int i = 0; i < nHexs; i++ ) {
for (int i = 0; i < nHex; i++ ) {
shift = i * 4 + dstPos;
int bits = (0xf & hexDigitToInt(src.charAt(i + srcPos))) << shift;
int mask = 0xf << shift;
@ -938,21 +952,21 @@ public class Conversion {
* conversion
* @param dstInit initial value of the destination short
* @param dstPos the position of the lsb, in bits, in the result short
* @param nHexs the number of Chars to convert
* @param nHex the number of Chars to convert
* @return a short containing the selected bits
* @throws IllegalArgumentException if {@code (nHexs-1)*4+dstPos >= 16}
*/
public static short hexsToShort(String src, int srcPos, short dstInit, int dstPos, int nHexs) {
if (0 == nHexs) {
public static short hexToShort(String src, int srcPos, short dstInit, int dstPos, int nHex) {
if (0 == nHex) {
return dstInit;
}
if ((nHexs - 1) * 4 + dstPos >= 16) {
if ((nHex - 1) * 4 + dstPos >= 16) {
throw new IllegalArgumentException(
"(nHexs-1)*4+dstPos is greather or equal to than 16");
}
short out = dstInit;
int shift = 0;
for (int i = 0; i < nHexs; i++ ) {
for (int i = 0; i < nHex; i++ ) {
shift = i * 4 + dstPos;
int bits = (0xf & hexDigitToInt(src.charAt(i + srcPos))) << shift;
int mask = 0xf << shift;
@ -972,21 +986,21 @@ public class Conversion {
* conversion
* @param dstInit initial value of the destination byte
* @param dstPos the position of the lsb, in bits, in the result byte
* @param nHexs the number of Chars to convert
* @param nHex the number of Chars to convert
* @return a byte containing the selected bits
* @throws IllegalArgumentException if {@code (nHexs-1)*4+dstPos >= 8}
*/
public static byte hexsToByte(String src, int srcPos, byte dstInit, int dstPos, int nHexs) {
if (0 == nHexs) {
public static byte hexToByte(String src, int srcPos, byte dstInit, int dstPos, int nHex) {
if (0 == nHex) {
return dstInit;
}
if ((nHexs - 1) * 4 + dstPos >= 8) {
if ((nHex - 1) * 4 + dstPos >= 8) {
throw new IllegalArgumentException(
"(nHexs-1)*4+dstPos is greather or equal to than 8");
}
byte out = dstInit;
int shift = 0;
for (int i = 0; i < nHexs; i++ ) {
for (int i = 0; i < nHex; i++ ) {
shift = i * 4 + dstPos;
int bits = (0xf & hexDigitToInt(src.charAt(i + srcPos))) << shift;
int mask = 0xf << shift;
@ -1008,11 +1022,13 @@ public class Conversion {
* @param dstPos the position of the lsb, in bits, in the result long
* @param nBools the number of booleans to convert
* @return a long containing the selected bits
* @throws NullPointerException if {@code src} is {@code null}
* @throws IllegalArgumentException if {@code nBools-1+dstPos >= 64}
* @throws ArrayIndexOutOfBoundsException if {@code srcPos + nBools > src.length}
*/
public static long boolsToLong(boolean[] src, int srcPos, long dstInit, int dstPos,
public static long boolArrayToLong(boolean[] src, int srcPos, long dstInit, int dstPos,
int nBools) {
if (0 == nBools) {
if ((src.length == 0 && srcPos == 0) || 0 == nBools) {
return dstInit;
}
if (nBools - 1 + dstPos >= 64) {
@ -1043,10 +1059,13 @@ public class Conversion {
* @param dstPos the position of the lsb, in bits, in the result int
* @param nBools the number of booleans to convert
* @return a int containing the selected bits
* @throws NullPointerException if {@code src} is {@code null}
* @throws IllegalArgumentException if {@code nBools-1+dstPos >= 32}
* @throws ArrayIndexOutOfBoundsException if {@code srcPos + nBools > src.length}
*/
public static int boolsToInt(boolean[] src, int srcPos, int dstInit, int dstPos, int nBools) {
if (0 == nBools) {
public static int boolArrayToInt(boolean[] src, int srcPos, int dstInit, int dstPos,
int nBools) {
if ((src.length == 0 && srcPos == 0) || 0 == nBools) {
return dstInit;
}
if (nBools - 1 + dstPos >= 32) {
@ -1077,11 +1096,13 @@ public class Conversion {
* @param dstPos the position of the lsb, in bits, in the result short
* @param nBools the number of booleans to convert
* @return a short containing the selected bits
* @throws NullPointerException if {@code src} is {@code null}
* @throws IllegalArgumentException if {@code nBools-1+dstPos >= 16}
* @throws ArrayIndexOutOfBoundsException if {@code srcPos + nBools > src.length}
*/
public static short boolsToShort(boolean[] src, int srcPos, short dstInit, int dstPos,
public static short boolArrayToShort(boolean[] src, int srcPos, short dstInit, int dstPos,
int nBools) {
if (0 == nBools) {
if ((src.length == 0 && srcPos == 0) || 0 == nBools) {
return dstInit;
}
if (nBools - 1 + dstPos >= 16) {
@ -1112,11 +1133,13 @@ public class Conversion {
* @param dstPos the position of the lsb, in bits, in the result byte
* @param nBools the number of booleans to convert
* @return a byte containing the selected bits
* @throws NullPointerException if {@code src} is {@code null}
* @throws IllegalArgumentException if {@code nBools-1+dstPos >= 8}
* @throws ArrayIndexOutOfBoundsException if {@code srcPos + nBools > src.length}
*/
public static byte boolsToByte(boolean[] src, int srcPos, byte dstInit, int dstPos,
public static byte boolArrayToByte(boolean[] src, int srcPos, byte dstInit, int dstPos,
int nBools) {
if (0 == nBools) {
if ((src.length == 0 && srcPos == 0) || 0 == nBools) {
return dstInit;
}
if (nBools - 1 + dstPos >= 8) {
@ -1146,9 +1169,11 @@ public class Conversion {
* @param nInts the number of ints to copy to {@code dst}, must be smaller or equal to the
* width of the input (from srcPos to msb)
* @return {@code dst}
* @throws NullPointerException if {@code dst} is {@code null} and {@code nInts > 0}
* @throws IllegalArgumentException if {@code (nInts-1)*32+srcPos >= 64}
* @throws ArrayIndexOutOfBoundsException if {@code dstPos + nInts > dst.length}
*/
public static int[] longToInts(long src, int srcPos, int[] dst, int dstPos, int nInts) {
public static int[] longToIntArray(long src, int srcPos, int[] dst, int dstPos, int nInts) {
if (0 == nInts) {
return dst;
}
@ -1177,9 +1202,11 @@ public class Conversion {
* @param nShorts the number of shorts to copy to {@code dst}, must be smaller or equal to
* the width of the input (from srcPos to msb)
* @return {@code dst}
* @throws NullPointerException if {@code dst} is {@code null}
* @throws IllegalArgumentException if {@code (nShorts-1)*16+srcPos >= 64}
* @throws ArrayIndexOutOfBoundsException if {@code dstPos + nShorts > dst.length}
*/
public static short[] longToShorts(long src, int srcPos, short[] dst, int dstPos,
public static short[] longToShortArray(long src, int srcPos, short[] dst, int dstPos,
int nShorts) {
if (0 == nShorts) {
return dst;
@ -1209,9 +1236,12 @@ public class Conversion {
* @param nShorts the number of shorts to copy to {@code dst}, must be smaller or equal to
* the width of the input (from srcPos to msb)
* @return {@code dst}
* @throws NullPointerException if {@code dst} is {@code null}
* @throws IllegalArgumentException if {@code (nShorts-1)*16+srcPos >= 32}
* @throws ArrayIndexOutOfBoundsException if {@code dstPos + nShorts > dst.length}
*/
public static short[] intToShorts(int src, int srcPos, short[] dst, int dstPos, int nShorts) {
public static short[] intToShortArray(int src, int srcPos, short[] dst, int dstPos,
int nShorts) {
if (0 == nShorts) {
return dst;
}
@ -1240,9 +1270,12 @@ public class Conversion {
* @param nBytes the number of bytes to copy to {@code dst}, must be smaller or equal to the
* width of the input (from srcPos to msb)
* @return {@code dst}
* @throws NullPointerException if {@code dst} is {@code null}
* @throws IllegalArgumentException if {@code (nBytes-1)*8+srcPos >= 64}
* @throws ArrayIndexOutOfBoundsException if {@code dstPos + nBytes > dst.length}
*/
public static byte[] longToBytes(long src, int srcPos, byte[] dst, int dstPos, int nBytes) {
public static byte[] longToByteArray(long src, int srcPos, byte[] dst, int dstPos,
int nBytes) {
if (0 == nBytes) {
return dst;
}
@ -1271,9 +1304,11 @@ public class Conversion {
* @param nBytes the number of bytes to copy to {@code dst}, must be smaller or equal to the
* width of the input (from srcPos to msb)
* @return {@code dst}
* @throws NullPointerException if {@code dst} is {@code null}
* @throws IllegalArgumentException if {@code (nBytes-1)*8+srcPos >= 32}
* @throws ArrayIndexOutOfBoundsException if {@code dstPos + nBytes > dst.length}
*/
public static byte[] intToBytes(int src, int srcPos, byte[] dst, int dstPos, int nBytes) {
public static byte[] intToByteArray(int src, int srcPos, byte[] dst, int dstPos, int nBytes) {
if (0 == nBytes) {
return dst;
}
@ -1302,9 +1337,12 @@ public class Conversion {
* @param nBytes the number of bytes to copy to {@code dst}, must be smaller or equal to the
* width of the input (from srcPos to msb)
* @return {@code dst}
* @throws NullPointerException if {@code dst} is {@code null}
* @throws IllegalArgumentException if {@code (nBytes-1)*8+srcPos >= 16}
* @throws ArrayIndexOutOfBoundsException if {@code dstPos + nBytes > dst.length}
*/
public static byte[] shortToBytes(short src, int srcPos, byte[] dst, int dstPos, int nBytes) {
public static byte[] shortToByteArray(short src, int srcPos, byte[] dst, int dstPos,
int nBytes) {
if (0 == nBytes) {
return dst;
}
@ -1334,8 +1372,9 @@ public class Conversion {
* width of the input (from srcPos to msb)
* @return {@code dst}
* @throws IllegalArgumentException if {@code (nHexs-1)*4+srcPos >= 64}
* @throws StringIndexOutOfBoundsException if {@code dst.init.length() < dstPos}
*/
public static String longToHexs(long src, int srcPos, String dstInit, int dstPos, int nHexs) {
public static String longToHex(long src, int srcPos, String dstInit, int dstPos, int nHexs) {
if (0 == nHexs) {
return dstInit;
}
@ -1345,10 +1384,16 @@ public class Conversion {
}
StringBuilder sb = new StringBuilder(dstInit);
int shift = 0;
int append = sb.length();
for (int i = 0; i < nHexs; i++ ) {
shift = i * 4 + srcPos;
int bits = (int)(0xF & (src >> shift));
sb.setCharAt(dstPos + i, intToHexDigit(bits));
if (dstPos + i == append) {
++append;
sb.append(intToHexDigit(bits));
} else {
sb.setCharAt(dstPos + i, intToHexDigit(bits));
}
}
return sb.toString();
}
@ -1367,8 +1412,9 @@ public class Conversion {
* width of the input (from srcPos to msb)
* @return {@code dst}
* @throws IllegalArgumentException if {@code (nHexs-1)*4+srcPos >= 32}
* @throws StringIndexOutOfBoundsException if {@code dst.init.length() < dstPos}
*/
public static String intToHexs(int src, int srcPos, String dstInit, int dstPos, int nHexs) {
public static String intToHex(int src, int srcPos, String dstInit, int dstPos, int nHexs) {
if (0 == nHexs) {
return dstInit;
}
@ -1378,10 +1424,16 @@ public class Conversion {
}
StringBuilder sb = new StringBuilder(dstInit);
int shift = 0;
int append = sb.length();
for (int i = 0; i < nHexs; i++ ) {
shift = i * 4 + srcPos;
int bits = 0xF & (src >> shift);
sb.setCharAt(dstPos + i, intToHexDigit(bits));
if (dstPos + i == append) {
++append;
sb.append(intToHexDigit(bits));
} else {
sb.setCharAt(dstPos + i, intToHexDigit(bits));
}
}
return sb.toString();
}
@ -1400,9 +1452,9 @@ public class Conversion {
* width of the input (from srcPos to msb)
* @return {@code dst}
* @throws IllegalArgumentException if {@code (nHexs-1)*4+srcPos >= 16}
* @throws StringIndexOutOfBoundsException if {@code dst.init.length() < dstPos}
*/
public static String shortToHexs(short src, int srcPos, String dstInit, int dstPos,
int nHexs) {
public static String shortToHex(short src, int srcPos, String dstInit, int dstPos, int nHexs) {
if (0 == nHexs) {
return dstInit;
}
@ -1412,10 +1464,16 @@ public class Conversion {
}
StringBuilder sb = new StringBuilder(dstInit);
int shift = 0;
int append = sb.length();
for (int i = 0; i < nHexs; i++ ) {
shift = i * 4 + srcPos;
int bits = 0xF & (src >> shift);
sb.setCharAt(dstPos + i, intToHexDigit(bits));
if (dstPos + i == append) {
++append;
sb.append(intToHexDigit(bits));
} else {
sb.setCharAt(dstPos + i, intToHexDigit(bits));
}
}
return sb.toString();
}
@ -1434,8 +1492,9 @@ public class Conversion {
* width of the input (from srcPos to msb)
* @return {@code dst}
* @throws IllegalArgumentException if {@code (nHexs-1)*4+srcPos >= 8}
* @throws StringIndexOutOfBoundsException if {@code dst.init.length() < dstPos}
*/
public static String byteToHexs(byte src, int srcPos, String dstInit, int dstPos, int nHexs) {
public static String byteToHex(byte src, int srcPos, String dstInit, int dstPos, int nHexs) {
if (0 == nHexs) {
return dstInit;
}
@ -1445,10 +1504,16 @@ public class Conversion {
}
StringBuilder sb = new StringBuilder(dstInit);
int shift = 0;
int append = sb.length();
for (int i = 0; i < nHexs; i++ ) {
shift = i * 4 + srcPos;
int bits = 0xF & (src >> shift);
sb.setCharAt(dstPos + i, intToHexDigit(bits));
if (dstPos + i == append) {
++append;
sb.append(intToHexDigit(bits));
} else {
sb.setCharAt(dstPos + i, intToHexDigit(bits));
}
}
return sb.toString();
}
@ -1466,9 +1531,11 @@ public class Conversion {
* @param nBools the number of booleans to copy to {@code dst}, must be smaller or equal to
* the width of the input (from srcPos to msb)
* @return {@code dst}
* @throws NullPointerException if {@code dst} is {@code null}
* @throws IllegalArgumentException if {@code nBools-1+srcPos >= 64}
* @throws ArrayIndexOutOfBoundsException if {@code dstPos + nBools > dst.length}
*/
public static boolean[] longToBools(long src, int srcPos, boolean[] dst, int dstPos,
public static boolean[] longToBoolArray(long src, int srcPos, boolean[] dst, int dstPos,
int nBools) {
if (0 == nBools) {
return dst;
@ -1498,9 +1565,11 @@ public class Conversion {
* @param nBools the number of booleans to copy to {@code dst}, must be smaller or equal to
* the width of the input (from srcPos to msb)
* @return {@code dst}
* @throws NullPointerException if {@code dst} is {@code null}
* @throws IllegalArgumentException if {@code nBools-1+srcPos >= 32}
* @throws ArrayIndexOutOfBoundsException if {@code dstPos + nBools > dst.length}
*/
public static boolean[] intToBools(int src, int srcPos, boolean[] dst, int dstPos,
public static boolean[] intToBoolArray(int src, int srcPos, boolean[] dst, int dstPos,
int nBools) {
if (0 == nBools) {
return dst;
@ -1530,9 +1599,11 @@ public class Conversion {
* @param nBools the number of booleans to copy to {@code dst}, must be smaller or equal to
* the width of the input (from srcPos to msb)
* @return {@code dst}
* @throws NullPointerException if {@code dst} is {@code null}
* @throws IllegalArgumentException if {@code nBools-1+srcPos >= 16}
* @throws ArrayIndexOutOfBoundsException if {@code dstPos + nBools > dst.length}
*/
public static boolean[] shortToBools(short src, int srcPos, boolean[] dst, int dstPos,
public static boolean[] shortToBoolArray(short src, int srcPos, boolean[] dst, int dstPos,
int nBools) {
if (0 == nBools) {
return dst;
@ -1563,9 +1634,11 @@ public class Conversion {
* @param nBools the number of booleans to copy to {@code dst}, must be smaller or equal to
* the width of the input (from srcPos to msb)
* @return {@code dst}
* @throws NullPointerException if {@code dst} is {@code null}
* @throws IllegalArgumentException if {@code nBools-1+srcPos >= 8}
* @throws ArrayIndexOutOfBoundsException if {@code dstPos + nBools > dst.length}
*/
public static boolean[] byteToBools(byte src, int srcPos, boolean[] dst, int dstPos,
public static boolean[] byteToBoolArray(byte src, int srcPos, boolean[] dst, int dstPos,
int nBools) {
if (0 == nBools) {
return dst;
@ -1593,18 +1666,20 @@ public class Conversion {
* @param nBytes the number of bytes to copy to {@code dst}, must be smaller or equal to the
* width of the input (from srcPos to msb)
* @return {@code dst}
* @throws NullPointerException if {@code dst} is {@code null}
* @throws IllegalArgumentException if {@code nBytes > 16}
* @throws ArrayIndexOutOfBoundsException if {@code dstPos + nBytes > dst.length}
*/
public static byte[] uuidToBytes(UUID src, byte[] dst, int dstPos, int nBytes) {
public static byte[] uuidToByteArray(UUID src, byte[] dst, int dstPos, int nBytes) {
if (0 == nBytes) {
return dst;
}
if (nBytes > 16) {
throw new IllegalArgumentException("nBytes is greather than 16");
}
longToBytes(src.getMostSignificantBits(), 0, dst, dstPos, nBytes > 8 ? 8 : nBytes);
longToByteArray(src.getMostSignificantBits(), 0, dst, dstPos, nBytes > 8 ? 8 : nBytes);
if (nBytes >= 8) {
longToBytes(src.getLeastSignificantBits(), 0, dst, dstPos + 8, nBytes - 8);
longToByteArray(src.getLeastSignificantBits(), 0, dst, dstPos + 8, nBytes - 8);
}
return dst;
}
@ -1618,14 +1693,15 @@ public class Conversion {
* @param src the source byte array
* @param srcPos the position in {@code src} where to copy the result from
* @return a UUID
* @throws NullPointerException if {@code src} is {@code null}
* @throws IllegalArgumentException if array does not contain at least 16 bytes beginning
* with {@code srcPos}
*/
public static UUID bytesToUuid(byte[] src, int srcPos) {
public static UUID byteArrayToUuid(byte[] src, int srcPos) {
if (src.length - srcPos < 16) {
throw new IllegalArgumentException("Need at least 16 bytes for UUID");
}
return new UUID(
bytesToLong(src, srcPos, 0, 0, 8), bytesToLong(src, srcPos + 8, 0, 0, 8));
return new UUID(byteArrayToLong(src, srcPos, 0, 0, 8), byteArrayToLong(
src, srcPos + 8, 0, 0, 8));
}
}

1403
src/test/java/org/apache/commons/lang3/ConversionTest.java
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