Examples of LazySimpleSerDe

org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe
LazySimpleSerDe can be used to read the same data format as MetadataTypedColumnsetSerDe and TCTLSeparatedProtocol. However, LazySimpleSerDe creates Objects in a lazy way, to provide better performance. Also LazySimpleSerDe outputs typed columns instead of treating all columns as String like MetadataTypedColumnsetSerDe.

Examples of org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe

            if(file.isDirectory()) {
                for(File f : file.listFiles()) {
                    count += loadPredictionModel(model, f, featureOI, weightOI, covarOI);
                }
            } else {
                LazySimpleSerDe serde = HiveUtils.getLineSerde(featureOI, weightOI, covarOI);
                StructObjectInspector lineOI = (StructObjectInspector) serde.getObjectInspector();
                StructField c1ref = lineOI.getStructFieldRef("c1");
                StructField c2ref = lineOI.getStructFieldRef("c2");
                StructField c3ref = lineOI.getStructFieldRef("c3");
                PrimitiveObjectInspector c1oi = (PrimitiveObjectInspector) c1ref.getFieldObjectInspector();
                FloatObjectInspector c2oi = (FloatObjectInspector) c2ref.getFieldObjectInspector();
                FloatObjectInspector c3oi = (FloatObjectInspector) c3ref.getFieldObjectInspector();


                BufferedReader reader = null;
                try {
                    reader = HadoopUtils.getBufferedReader(file);
                    String line;
                    while((line = reader.readLine()) != null) {
                        count++;
                        Text lineText = new Text(line);
                        Object lineObj = serde.deserialize(lineText);
                        List<Object> fields = lineOI.getStructFieldsDataAsList(lineObj);
                        Object f0 = fields.get(0);
                        Object f1 = fields.get(1);
                        Object f2 = fields.get(2);
                        if(f0 == null || f1 == null) {

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Examples of org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe


  public void testLazySimpleSerDe() throws Throwable {
    try {
      // Create the SerDe
      System.out.println("test: testLazySimpleSerDe");
      LazySimpleSerDe serDe = new LazySimpleSerDe();
      Configuration conf = new Configuration();
      Properties tbl = createProperties();
      SerDeUtils.initializeSerDe(serDe, conf, tbl, null);


      // Data

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Examples of org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe

    // empty maps
    TextStringMapHolder o1 = new TextStringMapHolder();
    StructObjectInspector oi1 = (StructObjectInspector) ObjectInspectorFactory
        .getReflectionObjectInspector(TextStringMapHolder.class, ObjectInspectorOptions.JAVA);


    LazySimpleSerDe serde = new LazySimpleSerDe();
    Configuration conf = new Configuration();
    Properties tbl = new Properties();
    tbl.setProperty(serdeConstants.LIST_COLUMNS, ObjectInspectorUtils.getFieldNames(oi1));
    tbl.setProperty(serdeConstants.LIST_COLUMN_TYPES, ObjectInspectorUtils.getFieldTypes(oi1));
    SerDeParameters serdeParams = LazySimpleSerDe.initSerdeParams(conf, tbl,
        LazySimpleSerDe.class.getName());
    SerDeUtils.initializeSerDe(serde, conf, tbl, null);
    ObjectInspector oi2 = serde.getObjectInspector();


    Object o2 = serializeAndDeserialize(o1, oi1, serde, serdeParams);


    int rc = ObjectInspectorUtils.compare(o1, oi1, o2, oi2, new CrossMapEqualComparer());
    assertEquals(0, rc);

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Examples of org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe

    // empty maps
    StringTextMapHolder o1 = new StringTextMapHolder();
    StructObjectInspector oi1 = (StructObjectInspector) ObjectInspectorFactory
        .getReflectionObjectInspector(StringTextMapHolder.class, ObjectInspectorOptions.JAVA);


    LazySimpleSerDe serde = new LazySimpleSerDe();
    Configuration conf = new Configuration();
    Properties tbl = new Properties();
    tbl.setProperty(serdeConstants.LIST_COLUMNS, ObjectInspectorUtils.getFieldNames(oi1));
    tbl.setProperty(serdeConstants.LIST_COLUMN_TYPES, ObjectInspectorUtils.getFieldTypes(oi1));
    SerDeParameters serdeParams = LazySimpleSerDe.initSerdeParams(conf, tbl,
        LazySimpleSerDe.class.getName());
    SerDeUtils.initializeSerDe(serde, conf, tbl, null);
    ObjectInspector oi2 = serde.getObjectInspector();


    Object o2 = serializeAndDeserialize(o1, oi1, serde, serdeParams);


    int rc = ObjectInspectorUtils.compare(o1, oi1, o2, oi2, new CrossMapEqualComparer());
    assertEquals(0, rc);

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Examples of org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe

    // empty maps
    TextStringMapHolder o1 = new TextStringMapHolder();
    StructObjectInspector oi1 = (StructObjectInspector) ObjectInspectorFactory
        .getReflectionObjectInspector(TextStringMapHolder.class, ObjectInspectorOptions.JAVA);


    LazySimpleSerDe serde = new LazySimpleSerDe();
    Configuration conf = new Configuration();
    Properties tbl = new Properties();
    tbl.setProperty(serdeConstants.LIST_COLUMNS, ObjectInspectorUtils.getFieldNames(oi1));
    tbl.setProperty(serdeConstants.LIST_COLUMN_TYPES, ObjectInspectorUtils.getFieldTypes(oi1));
    SerDeParameters serdeParams = LazySimpleSerDe.initSerdeParams(conf, tbl,
        LazySimpleSerDe.class.getName());
    SerDeUtils.initializeSerDe(serde, conf, tbl, null);
    ObjectInspector oi2 = serde.getObjectInspector();


    Object o2 = serializeAndDeserialize(o1, oi1, serde, serdeParams);


    int rc = ObjectInspectorUtils.compare(o1, oi1, o2, oi2, new SimpleMapEqualComparer());
    assertEquals(0, rc);

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Examples of org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe

    // empty maps
    StringTextMapHolder o1 = new StringTextMapHolder();
    StructObjectInspector oi1 = (StructObjectInspector) ObjectInspectorFactory
        .getReflectionObjectInspector(StringTextMapHolder.class, ObjectInspectorOptions.JAVA);


    LazySimpleSerDe serde = new LazySimpleSerDe();
    Configuration conf = new Configuration();
    Properties tbl = new Properties();
    tbl.setProperty(serdeConstants.LIST_COLUMNS, ObjectInspectorUtils.getFieldNames(oi1));
    tbl.setProperty(serdeConstants.LIST_COLUMN_TYPES, ObjectInspectorUtils.getFieldTypes(oi1));
    SerDeParameters serdeParams = LazySimpleSerDe.initSerdeParams(conf, tbl,
        LazySimpleSerDe.class.getName());
    SerDeUtils.initializeSerDe(serde, conf, tbl, null);
    ObjectInspector oi2 = serde.getObjectInspector();


    Object o2 = serializeAndDeserialize(o1, oi1, serde, serdeParams);


    int rc = ObjectInspectorUtils.compare(o1, oi1, o2, oi2, new SimpleMapEqualComparer());
    assertEquals(0, rc);

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Examples of org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe

        }
      }
      String names = namesSb.toString();
      String types = typesSb.toString();


      serde = new LazySimpleSerDe();
      Properties props = new Properties();
      if (names.length() > 0) {
        LOG.debug("Column names: " + names);
        props.setProperty(serdeConstants.LIST_COLUMNS, names);
      }

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Examples of org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe

            if(file.isDirectory()) {
                for(File f : file.listFiles()) {
                    loadValues(map, f, keyOI, valueOI);
                }
            } else {
                LazySimpleSerDe serde = HiveUtils.getKeyValueLineSerde(keyOI, valueOI);
                StructObjectInspector lineOI = (StructObjectInspector) serde.getObjectInspector();
                StructField keyRef = lineOI.getStructFieldRef("key");
                StructField valueRef = lineOI.getStructFieldRef("value");
                PrimitiveObjectInspector keyRefOI = (PrimitiveObjectInspector) keyRef.getFieldObjectInspector();
                PrimitiveObjectInspector valueRefOI = (PrimitiveObjectInspector) valueRef.getFieldObjectInspector();


                BufferedReader reader = null;
                try {
                    reader = HadoopUtils.getBufferedReader(file);
                    String line;
                    while((line = reader.readLine()) != null) {
                        Text lineText = new Text(line);
                        Object lineObj = serde.deserialize(lineText);
                        List<Object> fields = lineOI.getStructFieldsDataAsList(lineObj);
                        Object f0 = fields.get(0);
                        Object f1 = fields.get(1);
                        Object k = keyRefOI.getPrimitiveJavaObject(f0);
                        Object v = valueRefOI.getPrimitiveWritableObject(valueRefOI.copyObject(f1));

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Examples of org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe




  private LazySimpleSerDe getLineSerde() throws SerDeException {
    if(serde == null) {
      Logger.getLogger(LazySimpleSerDe.class).setLevel(Level.DEBUG);
      serde = new LazySimpleSerDe();
      Configuration job = new Configuration();
      Properties tbl =new Properties();
      tbl.setProperty("columns", "key,value");
      tbl.setProperty("columns.types", keyType.getTypeName() +"," + valType.getTypeName());
      serde.initialize(job, tbl);

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Examples of org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe

        }
      }
      String names = namesSb.toString();
      String types = typesSb.toString();


      serde = new LazySimpleSerDe();
      Properties props = new Properties();
      if (names.length() > 0) {
        LOG.debug("Column names: " + names);
        props.setProperty(serdeConstants.LIST_COLUMNS, names);
      }

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