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annotate src/org/eclipse/jetty/io/JBuffer.java @ 1049:4afdf0f0c5bc
remove unused JBuffer methods
| author | Franklin Schmidt <fschmidt@gmail.com> |
|---|---|
| date | Mon, 07 Nov 2016 23:34:48 -0700 |
| parents | 2b769da7f67d |
| children | 5ef954fad97b |
| rev | line source |
|---|---|
| 1046 | 1 // tmp class to implement Buffer until I can get rid of it |
| 2 | |
| 3 package org.eclipse.jetty.io; | |
| 4 | |
| 5 import java.io.InputStream; | |
| 6 import java.io.IOException; | |
| 7 import java.nio.ByteBuffer; | |
| 8 import java.nio.channels.Channels; | |
| 9 import java.nio.channels.ReadableByteChannel; | |
| 10 import org.slf4j.Logger; | |
| 11 import org.slf4j.LoggerFactory; | |
| 12 import org.eclipse.jetty.util.TypeUtil; | |
| 13 | |
| 14 | |
| 1048 | 15 public final class JBuffer { |
| 1046 | 16 private static final Logger LOG = LoggerFactory.getLogger(JBuffer.class); |
| 17 | |
| 18 private final ByteBuffer bb; | |
| 19 | |
| 20 public JBuffer(ByteBuffer bb) { | |
| 21 this.bb = bb; | |
| 22 } | |
| 23 | |
| 24 public byte[] array() { | |
| 25 return bb.hasArray() ? bb.array() : null; | |
| 26 } | |
| 27 | |
| 1048 | 28 public JBuffer duplicate() { |
| 1046 | 29 return new JBuffer(bb.duplicate()); |
| 30 } | |
| 31 | |
| 32 public int remaining() { | |
| 33 return bb.remaining(); | |
| 34 } | |
| 35 | |
| 36 public boolean isReadOnly() { | |
| 37 return bb.isReadOnly(); | |
| 38 } | |
| 39 | |
| 40 public boolean hasRemaining() { | |
| 41 return bb.hasRemaining(); | |
| 42 } | |
| 43 | |
| 44 public byte get() { | |
| 45 return bb.get(); | |
| 46 } | |
| 47 | |
| 48 public void compact() { | |
| 49 int n = bb.remaining(); | |
| 50 bb.compact(); | |
| 51 bb.position(0); | |
| 52 bb.limit(n); | |
| 53 } | |
| 54 | |
| 55 public int capacity() { | |
| 56 return bb.capacity(); | |
| 57 } | |
| 58 | |
| 59 | |
| 60 | |
| 61 public ByteBuffer getByteBuffer() { | |
| 62 ByteBuffer dup = bb.duplicate(); | |
| 63 dup.limit(dup.capacity()); | |
| 64 return dup; | |
| 65 } | |
| 66 | |
| 67 public int getIndex() { | |
| 68 return bb.position(); | |
| 69 } | |
| 70 | |
| 71 public void clear() { | |
| 72 bb.position(0); | |
| 73 bb.limit(0); | |
| 74 } | |
| 75 | |
| 76 public int space() { | |
| 77 return bb.capacity() - bb.limit(); | |
| 78 } | |
| 79 | |
| 80 | |
| 1048 | 81 public JBuffer get(int length) { |
| 1046 | 82 ByteBuffer dup = bb.duplicate(); |
| 83 int end = bb.position()+length; | |
| 84 dup.limit(end); | |
| 85 bb.position(end); | |
| 86 return new JBuffer(dup); | |
| 87 } | |
| 88 | |
| 89 public int get(byte[] b, int offset, int length) { | |
| 90 int remaining = bb.remaining(); | |
| 91 if( remaining == 0 ) | |
| 92 return -1; | |
| 93 if( length > remaining ) | |
| 94 length = remaining; | |
| 95 bb.get(b,offset,length); | |
| 96 return length; | |
| 97 } | |
| 98 | |
| 99 | |
| 1048 | 100 public int put(JBuffer src) { |
| 1046 | 101 return put(src.asArray()); |
| 102 } | |
| 103 | |
| 104 public void put(byte b) | |
| 105 { | |
| 106 ByteBuffer dup = bb.duplicate(); | |
| 107 dup.position(bb.limit()); | |
| 108 dup.limit(bb.capacity()); | |
| 109 dup.put(b); | |
| 110 bb.limit(bb.limit()+1); | |
| 111 } | |
| 112 | |
|
1049
4afdf0f0c5bc
remove unused JBuffer methods
Franklin Schmidt <fschmidt@gmail.com>
parents:
1048
diff
changeset
|
113 private int put(byte[] b, int offset, int length) { |
| 1046 | 114 ByteBuffer dup = bb.duplicate(); |
| 115 int put = bb.limit(); | |
| 116 int capacity = bb.capacity(); | |
| 117 dup.position(put); | |
| 118 dup.limit(capacity); | |
| 119 if( length > capacity - put ) | |
| 120 length = capacity - put; | |
| 121 dup.put(b,offset,length); | |
| 122 bb.limit(put+length); | |
| 123 return length; | |
| 124 } | |
| 125 | |
| 126 public int put(byte[] b) { | |
| 127 return put(b,0,b.length); | |
| 128 } | |
| 129 | |
| 130 public final int putIndex() { | |
| 131 return bb.limit(); | |
| 132 } | |
| 133 | |
| 134 public void setGetIndex(int getIndex) { | |
| 135 bb.position(getIndex); | |
| 136 } | |
| 137 | |
| 138 public void setPutIndex(int putIndex) { | |
| 139 bb.limit(putIndex); | |
| 140 } | |
| 141 | |
| 142 public int skip(int n) { | |
| 143 if (remaining() < n) n = remaining(); | |
| 144 bb.position(bb.position() + n); | |
| 145 return n; | |
| 146 } | |
| 147 | |
| 1048 | 148 public final JBuffer sliceFrom(int index) { |
| 1046 | 149 ByteBuffer dup = bb.duplicate(); |
| 150 dup.position(index); | |
| 151 dup.limit(bb.position()-1); | |
| 152 return new JBuffer(dup); | |
| 153 } | |
| 154 | |
| 155 public int readFrom(InputStream in,int max) throws IOException { | |
| 156 ByteBuffer dup = bb.duplicate(); | |
| 157 int put = bb.limit(); | |
| 158 dup.limit( Math.min(put+max,bb.capacity()) ); | |
| 159 dup.position(put); | |
| 160 | |
| 161 ReadableByteChannel chan = Channels.newChannel(in); | |
| 162 int n = chan.read(dup); | |
| 163 | |
| 164 if( n > 0 ) | |
| 165 bb.limit(put+n); | |
| 166 return n; | |
| 167 } | |
| 168 | |
| 169 public final byte[] asArray() { | |
| 170 byte[] bytes = new byte[remaining()]; | |
| 171 bb.duplicate().get(bytes); | |
| 172 return bytes; | |
| 173 } | |
| 174 | |
| 175 @Override | |
| 176 public String toString() | |
| 177 { | |
| 178 return toString("ISO-8859-1"); | |
| 179 } | |
| 180 | |
| 181 public final String toString(int index, int length) { | |
| 182 ByteBuffer dup = bb.duplicate(); | |
| 183 dup.limit(index+length); | |
| 184 dup.position(index); | |
| 185 return new JBuffer(dup).toString(); | |
| 186 } | |
| 187 | |
|
1049
4afdf0f0c5bc
remove unused JBuffer methods
Franklin Schmidt <fschmidt@gmail.com>
parents:
1048
diff
changeset
|
188 private final String toString(String charset) |
| 1046 | 189 { |
| 190 byte[] bytes = asArray(); | |
| 191 try | |
| 192 { | |
| 193 return new String(bytes,charset); | |
| 194 } | |
| 195 catch(Exception e) | |
| 196 { | |
| 197 LOG.warn("",e); | |
| 198 return new String(bytes); | |
| 199 } | |
| 200 } | |
| 201 | |
| 202 | |
| 1048 | 203 private JBuffer pokeBuffer(int index) { |
| 204 JBuffer dup = duplicate(); | |
| 1046 | 205 dup.setPutIndex(index); |
| 206 return dup; | |
| 207 } | |
| 208 | |
| 209 public int poke(int index, byte b[], int offset, int length) { | |
| 210 return pokeBuffer(index).put(b,offset,length); | |
| 211 } | |
| 212 | |
| 213 public void poke(int index, byte b) { | |
| 214 pokeBuffer(index).put(b); | |
| 215 } | |
| 216 | |
| 1048 | 217 private JBuffer peekBuffer(int index) { |
| 218 JBuffer dup = duplicate(); | |
| 1046 | 219 dup.setGetIndex(index); |
| 220 dup.setPutIndex(dup.capacity()); | |
| 221 return dup; | |
| 222 } | |
| 223 | |
| 224 public byte peek(int index) { | |
| 225 return bb.get(index); | |
| 226 } | |
| 227 | |
| 228 public byte peek() { | |
| 229 return peek(bb.position()); | |
| 230 } | |
| 231 | |
| 232 } |