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package org.apache.maven.surefire.util.internal; |
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import java.io.PrintStream; |
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public class ByteBuffer |
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{ |
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private final byte[] data; |
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private int position; |
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public ByteBuffer( int length ) |
34 | 0 | { |
35 | 0 | this.data = new byte[length]; |
36 | 0 | } |
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public ByteBuffer( byte[] buf, int off, int len ) |
39 | 0 | { |
40 | 0 | this.data = new byte[len]; |
41 | 0 | append( buf, off, len ); |
42 | 0 | } |
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public void append( char chararcter ) |
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{ |
47 | 0 | data[position++] = (byte) chararcter; |
48 | 0 | } |
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public void append( byte chararcter ) |
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{ |
52 | 0 | data[position++] = chararcter; |
53 | 0 | } |
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static final byte comma = (byte) ','; |
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public void comma() |
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{ |
59 | 0 | data[position++] = comma; |
60 | 0 | } |
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public void advance( int i ) |
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{ |
65 | 0 | position += i; |
66 | 0 | } |
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public void append( Integer integer ) |
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{ |
70 | 0 | toHex( integer.intValue() ); |
71 | 0 | } |
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private void toHex( int i ) |
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{ |
78 | 0 | byte[] buf = new byte[32]; |
79 | 0 | int charPos = 32; |
80 | 0 | int radix = 1 << 4; |
81 | 0 | int mask = radix - 1; |
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do |
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{ |
84 | 0 | buf[--charPos] = (byte) digits[i & mask]; |
85 | 0 | i >>>= 4; |
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} |
87 | 0 | while ( i != 0 ); |
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89 | 0 | append( buf, charPos, ( 32 - charPos ) ); |
90 | 0 | } |
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92 | 0 | final static char[] digits = |
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{ '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', |
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'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z' }; |
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public byte[] getData() |
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{ |
99 | 0 | return data; |
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} |
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public int getlength() |
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{ |
104 | 0 | return position; |
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} |
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public String toString() |
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{ |
109 | 0 | return new String( data, 0, position ); |
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} |
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public void append( ByteBuffer other ) |
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{ |
114 | 0 | byte[] src = other.getData(); |
115 | 0 | final int length = src.length; |
116 | 0 | for ( int i = 0; i < length; i++ ) |
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{ |
118 | 0 | data[position++] = src[i]; |
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} |
120 | 0 | } |
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public static byte[] copy( byte[] src1, int off1, int len1 ) |
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{ |
124 | 0 | byte[] combined = new byte[len1]; |
125 | 0 | int pos = 0; |
126 | 0 | for ( int i = off1; i < off1 + len1; i++ ) |
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{ |
128 | 0 | combined[pos++] = src1[i]; |
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} |
130 | 0 | return combined; |
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} |
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public void append( byte[] src1, int off1, int len1 ) |
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{ |
135 | 0 | for ( int i = off1; i < off1 + len1; i++ ) |
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{ |
137 | 0 | data[position++] = src1[i]; |
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} |
139 | 0 | } |
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public static byte[] join( byte[] src1, int off1, int len1, byte[] src2, int off2, int len2 ) |
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{ |
143 | 0 | byte[] combined = new byte[len1 + len2]; |
144 | 0 | int pos = 0; |
145 | 0 | for ( int i = off1; i < off1 + len1; i++ ) |
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{ |
147 | 0 | combined[pos++] = src1[i]; |
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} |
149 | 0 | for ( int i = off2; i < off2 + len2; i++ ) |
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{ |
151 | 0 | combined[pos++] = src2[i]; |
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} |
153 | 0 | return combined; |
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} |
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public void print( PrintStream printStream ) |
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{ |
158 | 0 | printStream.write( data, 0, position ); |
159 | 0 | } |
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public static char[] toChar( byte[] b, int off, int len ) |
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{ |
163 | 0 | char[] result = new char[len]; |
164 | 0 | int pos = 0; |
165 | 0 | for ( int i = off; i < off + len; i++ ) |
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{ |
167 | 0 | result[pos++] = (char) b[i]; |
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} |
169 | 0 | return result; |
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} |
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} |