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1 //
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2 // MessagePack for Java
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3 //
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4 // Copyright (C) 2009 - 2013 FURUHASHI Sadayuki
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5 //
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6 // Licensed under the Apache License, Version 2.0 (the "License");
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7 // you may not use this file except in compliance with the License.
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8 // You may obtain a copy of the License at
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9 //
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10 // http://www.apache.org/licenses/LICENSE-2.0
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11 //
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12 // Unless required by applicable law or agreed to in writing, software
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13 // distributed under the License is distributed on an "AS IS" BASIS,
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14 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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15 // See the License for the specific language governing permissions and
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16 // limitations under the License.
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17 //
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18 package org.msgpack.type;
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19
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20 import java.util.Arrays;
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21 import java.io.IOException;
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22 import java.nio.ByteBuffer;
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23 import java.nio.charset.Charset;
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24 import java.nio.charset.CharacterCodingException;
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25 import java.nio.charset.CharsetDecoder;
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26 import java.nio.charset.CodingErrorAction;
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27 import org.msgpack.packer.Packer;
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28 import org.msgpack.MessageTypeException;
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29
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30 class ByteArrayRawValueImpl extends AbstractRawValue {
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31 private static ByteArrayRawValueImpl emptyInstance = new ByteArrayRawValueImpl(new byte[0], true);
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32
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33 public static RawValue getEmptyInstance() {
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34 return emptyInstance;
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35 }
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36
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37 private static final ThreadLocal<CharsetDecoder> decoderStore = new ThreadLocal<CharsetDecoder>() {
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38 @Override
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39 protected CharsetDecoder initialValue() {
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40 return Charset.forName("UTF-8").newDecoder()
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41 .onMalformedInput(CodingErrorAction.REPORT)
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42 .onUnmappableCharacter(CodingErrorAction.REPORT);
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43 }
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44 };
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45
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46 private byte[] bytes;
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47
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48 ByteArrayRawValueImpl(byte[] bytes, boolean gift) {
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49 if (gift) {
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50 this.bytes = bytes;
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51 } else {
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52 this.bytes = new byte[bytes.length];
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53 System.arraycopy(bytes, 0, this.bytes, 0, bytes.length);
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54 }
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55 }
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56
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57 ByteArrayRawValueImpl(byte[] b, int off, int len) {
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58 // TODO reference
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59 this.bytes = new byte[len];
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60 System.arraycopy(b, off, this.bytes, 0, len);
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61 }
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62
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63 @Override
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64 public byte[] getByteArray() {
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65 return bytes;
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66 }
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67
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68 @Override
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69 public String getString() {
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70 CharsetDecoder decoder = decoderStore.get();
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71 try {
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72 return decoder.decode(ByteBuffer.wrap(bytes)).toString();
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73 } catch (CharacterCodingException ex) {
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74 throw new MessageTypeException(ex);
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75 }
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76 }
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77
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78 @Override
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79 public void writeTo(Packer pk) throws IOException {
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80 pk.write(bytes);
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81 }
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82
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83 @Override
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84 public boolean equals(Object o) {
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85 if (this == o) {
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86 return true;
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87 }
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88 if (!(o instanceof Value)) {
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89 return false;
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90 }
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91 Value v = (Value) o;
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92 if (!v.isRawValue()) {
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93 return false;
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94 }
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95
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96 return Arrays.equals(bytes, v.asRawValue().getByteArray());
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97 }
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98
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99 @Override
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100 public int hashCode() {
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101 return Arrays.hashCode(bytes);
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102 }
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103 }
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