[44] | 1 | package omq.common.util; |
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| 2 | |
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| 3 | import java.io.IOException; |
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| 4 | import java.util.Properties; |
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| 5 | |
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| 6 | import omq.common.message.Request; |
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| 7 | import omq.common.message.Response; |
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| 8 | import omq.common.util.Serializers.GsonImp; |
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| 9 | import omq.common.util.Serializers.ISerializer; |
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| 10 | import omq.common.util.Serializers.JavaImp; |
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| 11 | import omq.common.util.Serializers.KryoImp; |
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| 12 | import omq.exception.SerializerException; |
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| 13 | import omq.server.RemoteObject; |
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| 14 | |
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| 15 | /** |
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| 16 | * |
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| 17 | * @author Sergi Toda <sergi.toda@estudiants.urv.cat> |
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| 18 | * |
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| 19 | */ |
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| 20 | public class Serializer { |
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[53] | 21 | // private static final Logger logger = |
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| 22 | // Logger.getLogger(Serializer.class.getName()); |
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[62] | 23 | public static final String KRYO = "kryo"; |
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| 24 | public static final String JAVA = "java"; |
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| 25 | public static final String GSON = "gson"; |
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[44] | 26 | |
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[47] | 27 | // Client serializer |
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[53] | 28 | public ISerializer serializer; |
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[44] | 29 | |
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[47] | 30 | // Server serializers |
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[53] | 31 | private ISerializer kryoSerializer; |
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| 32 | private ISerializer javaSerializer; |
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| 33 | private ISerializer gsonSerializer; |
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[47] | 34 | |
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[53] | 35 | private Properties env; |
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| 36 | |
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| 37 | public Serializer(Properties env) { |
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| 38 | this.env = env; |
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| 39 | } |
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| 40 | |
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| 41 | private Boolean getEnableCompression() { |
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[47] | 42 | return Boolean.valueOf(env.getProperty(ParameterQueue.ENABLECOMPRESSION, "false")); |
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[44] | 43 | } |
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| 44 | |
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[53] | 45 | public ISerializer getInstance() throws SerializerException { |
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[44] | 46 | if (serializer == null) { |
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| 47 | try { |
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[62] | 48 | String className = env.getProperty(ParameterQueue.SERIALIZER_NAME, Serializer.JAVA); |
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[72] | 49 | |
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[44] | 50 | if (className == null || className.isEmpty()) { |
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| 51 | throw new ClassNotFoundException("Class name is null or empty."); |
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| 52 | } |
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[72] | 53 | |
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[47] | 54 | serializer = getInstance(className); |
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[44] | 55 | } catch (Exception ex) { |
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| 56 | throw new SerializerException(ex.getMessage(), ex); |
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| 57 | } |
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| 58 | } |
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| 59 | |
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| 60 | return serializer; |
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| 61 | } |
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| 62 | |
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[72] | 63 | public ISerializer getInstance(String type) throws SerializerException { |
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[62] | 64 | if (KRYO.equals(type)) { |
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[47] | 65 | if (kryoSerializer == null) { |
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| 66 | kryoSerializer = new KryoImp(); |
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| 67 | } |
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| 68 | return kryoSerializer; |
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[62] | 69 | } else if (GSON.equals(type)) { |
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[47] | 70 | if (gsonSerializer == null) { |
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| 71 | gsonSerializer = new GsonImp(); |
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| 72 | } |
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| 73 | return gsonSerializer; |
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[62] | 74 | } else if (JAVA.equals(type)) { |
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[47] | 75 | if (javaSerializer == null) { |
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| 76 | javaSerializer = new JavaImp(); |
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| 77 | } |
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| 78 | return javaSerializer; |
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| 79 | } |
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[72] | 80 | |
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[62] | 81 | throw new SerializerException("Serializer not found."); |
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[47] | 82 | } |
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| 83 | |
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[53] | 84 | public byte[] serialize(String type, Object obj) throws SerializerException { |
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[47] | 85 | ISerializer instance = getInstance(type); |
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| 86 | |
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| 87 | Boolean enableCompression = getEnableCompression(); |
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| 88 | if (enableCompression) { |
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| 89 | byte[] objSerialized = instance.serialize(obj); |
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| 90 | try { |
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| 91 | return Zipper.zip(objSerialized); |
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| 92 | } catch (IOException e) { |
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| 93 | throw new SerializerException(e.getMessage(), e); |
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| 94 | } |
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| 95 | } else { |
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| 96 | return instance.serialize(obj); |
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| 97 | } |
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| 98 | } |
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| 99 | |
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| 100 | // TODO: remove this function and think about the event serialization |
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[53] | 101 | public byte[] serialize(Object obj) throws SerializerException { |
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[44] | 102 | ISerializer instance = getInstance(); |
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| 103 | |
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| 104 | Boolean enableCompression = getEnableCompression(); |
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| 105 | if (enableCompression) { |
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| 106 | byte[] objSerialized = instance.serialize(obj); |
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| 107 | try { |
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| 108 | return Zipper.zip(objSerialized); |
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| 109 | } catch (IOException e) { |
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| 110 | throw new SerializerException(e.getMessage(), e); |
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| 111 | } |
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| 112 | } else { |
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| 113 | return instance.serialize(obj); |
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| 114 | } |
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| 115 | } |
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| 116 | |
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[53] | 117 | public Request deserializeRequest(String type, byte[] bytes, RemoteObject obj) throws SerializerException { |
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[47] | 118 | ISerializer instance = getInstance(type); |
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[44] | 119 | |
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| 120 | Boolean enableCompression = getEnableCompression(); |
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| 121 | if (enableCompression) { |
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| 122 | try { |
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| 123 | byte[] unZippedBytes = Zipper.unzip(bytes); |
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| 124 | return instance.deserializeRequest(unZippedBytes, obj); |
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| 125 | } catch (IOException e) { |
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| 126 | throw new SerializerException(e.getMessage(), e); |
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| 127 | } |
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| 128 | } else { |
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| 129 | return instance.deserializeRequest(bytes, obj); |
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| 130 | } |
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| 131 | } |
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| 132 | |
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[53] | 133 | public Response deserializeResponse(byte[] bytes, Class<?> type) throws SerializerException { |
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[44] | 134 | ISerializer instance = getInstance(); |
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| 135 | |
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| 136 | Boolean enableCompression = getEnableCompression(); |
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| 137 | if (enableCompression) { |
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| 138 | try { |
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| 139 | byte[] unZippedBytes = Zipper.unzip(bytes); |
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| 140 | return instance.deserializeResponse(unZippedBytes, type); |
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| 141 | } catch (IOException e) { |
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| 142 | throw new SerializerException(e.getMessage(), e); |
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| 143 | } |
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| 144 | } else { |
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| 145 | return instance.deserializeResponse(bytes, type); |
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| 146 | } |
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| 147 | } |
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| 148 | |
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| 149 | } |
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