[33] | 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.event.Event; |
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| 7 | import omq.common.message.Request; |
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| 8 | import omq.common.message.Response; |
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| 9 | import omq.common.util.Serializers.ISerializer; |
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| 10 | import omq.exception.EnvironmentException; |
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| 11 | import omq.exception.SerializerException; |
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| 12 | import omq.server.remote.request.RemoteObject; |
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| 13 | |
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| 14 | /** |
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| 15 | * |
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| 16 | * @author Sergi Toda <sergi.toda@estudiants.urv.cat> |
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| 17 | * |
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| 18 | */ |
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| 19 | public class Serializer { |
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| 20 | public static ISerializer serializer; |
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| 21 | |
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| 22 | private static Boolean getEnableCompression() { |
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| 23 | Boolean enableCompression = false; |
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| 24 | try { |
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| 25 | Properties env = Environment.getEnvironment(); |
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| 26 | enableCompression = Boolean.valueOf(env.getProperty(ParameterQueue.ENABLECOMPRESSION, "false")); |
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| 27 | } catch (EnvironmentException e) { |
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| 28 | e.printStackTrace(); |
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| 29 | } |
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| 30 | |
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| 31 | return enableCompression; |
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| 32 | } |
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| 33 | |
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| 34 | public static ISerializer getInstance() throws SerializerException { |
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| 35 | if (serializer == null) { |
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| 36 | try { |
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| 37 | Properties env = Environment.getEnvironment(); |
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| 38 | String className = env.getProperty(ParameterQueue.SERIALIZERNAME, "omq.common.util.Serializers.JavaImp"); |
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| 39 | |
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| 40 | if (className == null || className.isEmpty()) { |
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| 41 | throw new ClassNotFoundException("Class name is null or empty."); |
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| 42 | } |
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| 43 | |
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| 44 | serializer = (ISerializer) Class.forName(className).newInstance(); |
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| 45 | } catch (Exception ex) { |
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| 46 | throw new SerializerException(ex.getMessage(), ex); |
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| 47 | } |
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| 48 | } |
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| 49 | |
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| 50 | return serializer; |
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| 51 | } |
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| 52 | |
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| 53 | public static byte[] serialize(Object obj) throws SerializerException { |
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| 54 | ISerializer instance = getInstance(); |
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| 55 | |
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| 56 | Boolean enableCompression = getEnableCompression(); |
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| 57 | if (enableCompression) { |
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| 58 | byte[] objSerialized = instance.serialize(obj); |
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| 59 | try { |
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| 60 | return Zipper.zip(objSerialized); |
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| 61 | } catch (IOException e) { |
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| 62 | throw new SerializerException(e.getMessage(), e); |
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| 63 | } |
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| 64 | } else { |
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| 65 | return instance.serialize(obj); |
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| 66 | } |
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| 67 | } |
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| 68 | |
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| 69 | public static Request deserializeRequest(byte[] bytes, RemoteObject obj) throws SerializerException { |
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| 70 | ISerializer instance = getInstance(); |
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| 71 | |
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| 72 | Boolean enableCompression = getEnableCompression(); |
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| 73 | if (enableCompression) { |
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| 74 | try { |
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| 75 | byte[] unZippedBytes = Zipper.unzip(bytes); |
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| 76 | return instance.deserializeRequest(unZippedBytes, obj); |
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| 77 | } catch (IOException e) { |
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| 78 | throw new SerializerException(e.getMessage(), e); |
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| 79 | } |
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| 80 | } else { |
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| 81 | return instance.deserializeRequest(bytes, obj); |
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| 82 | } |
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| 83 | } |
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| 84 | |
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| 85 | public static Response deserializeResponse(byte[] bytes, Class<?> type) throws SerializerException { |
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| 86 | ISerializer instance = getInstance(); |
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| 87 | |
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| 88 | Boolean enableCompression = getEnableCompression(); |
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| 89 | if (enableCompression) { |
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| 90 | try { |
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| 91 | byte[] unZippedBytes = Zipper.unzip(bytes); |
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| 92 | return instance.deserializeResponse(unZippedBytes, type); |
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| 93 | } catch (IOException e) { |
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| 94 | throw new SerializerException(e.getMessage(), e); |
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| 95 | } |
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| 96 | } else { |
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| 97 | return instance.deserializeResponse(bytes, type); |
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| 98 | } |
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| 99 | } |
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| 100 | |
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| 101 | public static Event deserializeEvent(byte[] bytes) throws SerializerException { |
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| 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 | try { |
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| 107 | byte[] unZippedBytes = Zipper.unzip(bytes); |
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| 108 | return instance.deserializeEvent(unZippedBytes); |
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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.deserializeEvent(bytes); |
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| 114 | } |
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| 115 | } |
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| 116 | } |
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