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1
4 package gnu.lists;
5 import java.io.*;
6
7
8
9 public class S8Vector extends SimpleVector
10 implements Externalizable
11
12 , Comparable 
13
14 {
15 byte[] data;
16 protected static byte[] empty = new byte[0];
17
18 public S8Vector ()
19 {
20 data = empty;
21 }
22
23 public S8Vector(int size, byte value)
24 {
25 byte[] array = new byte[size];
26 data = array;
27 this.size = size;
28 while (--size >= 0)
29 array[size] = value;
30 }
31
32 public S8Vector(int size)
33 {
34 this.data = new byte[size];
35 this.size = size;
36 }
37
38 public S8Vector (byte[] data)
39 {
40 this.data = data;
41 size = data.length;
42 }
43
44 public S8Vector(Sequence seq)
45 {
46 data = new byte[seq.size()];
47 addAll(seq);
48 }
49
50
51 public int getBufferLength()
52 {
53 return data.length;
54 }
55
56 public void setBufferLength(int length)
57 {
58 int oldLength = data.length;
59 if (oldLength != length)
60 {
61 byte[] tmp = new byte[length];
62 System.arraycopy(data, 0, tmp, 0,
63 oldLength < length ? oldLength : length);
64 data = tmp;
65 }
66 }
67
68 protected Object getBuffer() { return data; }
69
70 public final byte byteAt(int index)
71 {
72 if (index > size)
73 throw new IndexOutOfBoundsException ();
74 return data[index];
75 }
76
77 public final byte byteAtBuffer(int index)
78 {
79 return data[index];
80 }
81
82 public final int intAtBuffer(int index)
83 {
84 return data[index];
85 }
86
87 public final Object get(int index)
88 {
89 if (index > size)
90 throw new IndexOutOfBoundsException ();
91 return Convert.toObject(data[index]);
92 }
93
94 public final Object getBuffer(int index)
95 {
96 return Convert.toObject(data[index]);
97 }
98
99 public Object setBuffer(int index, Object value)
100 {
101 byte old = data[index];
102 data[index] = Convert.toByte(value);
103 return Convert.toObject(old);
104 }
105
106 public final void setByteAt(int index, byte value)
107 {
108 if (index > size)
109 throw new IndexOutOfBoundsException ();
110 data[index] = value;
111 }
112
113 public final void setByteAtBuffer(int index, byte value)
114 {
115 data[index] = value;
116 }
117
118 protected void clearBuffer(int start, int count)
119 {
120 while (--count >= 0)
121 data[start++] = 0;
122 }
123
124 public int getElementKind()
125 {
126 return INT_S8_VALUE;
127 }
128
129 public String getTag() { return "s8"; }
130
131 public boolean consumeNext (int ipos, Consumer out)
132 {
133 int index = ipos >>> 1;
134 if (index >= size)
135 return false;
136 out.writeInt(data[index]);
137 return true;
138 }
139
140 public void consumePosRange (int iposStart, int iposEnd, Consumer out)
141 {
142 if (out.ignoring())
143 return;
144 int i = iposStart >>> 1;
145 int end = iposEnd >>> 1;
146 if (end > size)
147 end = size;
148 for (; i < end; i++)
149 out.writeInt(data[i]);
150 }
151
152 public int compareTo(Object obj)
153 {
154 return compareToInt(this, (S8Vector) obj);
155 }
156
157
161 public void writeExternal(ObjectOutput out) throws IOException
162 {
163 int size = this.size;
164 out.writeInt(size);
165 for (int i = 0; i < size; i++)
166 out.writeByte(data[i]);
167 }
168
169 public void readExternal(ObjectInput in)
170 throws IOException, ClassNotFoundException
171 {
172 int size = in.readInt();
173 byte[] data = new byte[size];
174 for (int i = 0; i < size; i++)
175 data[i] = in.readByte();
176 this.data = data;
177 this.size = size;
178 }
179 }
180 |
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