Examples of org.apache.hadoop.hive.serde2.objectinspector.primitive.StringObjectInspector

Package org.apache.hadoop.hive.serde2.objectinspector.primitive

Examples of org.apache.hadoop.hive.serde2.objectinspector.primitive.StringObjectInspector

org.apache.hadoop.hive.serde2.objectinspector.primitive.StringObjectInspector
A StringObjectInspector inspects an Object representing a String.

            buffer.write((byte)(v >> 8), invert);
            buffer.write((byte)v, invert);
            return;
          }
          case STRING: {
            StringObjectInspector soi = (StringObjectInspector)poi;
            Text t = soi.getPrimitiveWritableObject(o);
            byte[] data = t.getBytes();
            int length = t.getLength();
            for (int i=0; i<length; i++) {
              if (data[i] == 0 || data[i] == 1) {
                buffer.write((byte)1, invert);
                buffer.write((byte)(data[i]+1), invert);
              } else {
                buffer.write(data[i], invert);
              }
            }
            buffer.write((byte)0, invert);
            return;
          }
          default: {
            throw new RuntimeException("Unrecognized type: " + poi.getPrimitiveCategory());
          }
        }
      }
      case LIST: {
        ListObjectInspector loi = (ListObjectInspector)oi;
        ObjectInspector eoi = loi.getListElementObjectInspector();
        
        // \1 followed by each element
        int size = loi.getListLength(o);
        for (int eid = 0; eid < size; eid++) {
          buffer.write((byte)1, invert);
          serialize(buffer, loi.getListElement(o, eid), eoi, invert);
        }
        // and \0 to terminate
        buffer.write((byte)0, invert);
        return;
      }      
      case MAP: {
        MapObjectInspector moi = (MapObjectInspector)oi;
        ObjectInspector koi = moi.getMapKeyObjectInspector();
        ObjectInspector voi = moi.getMapValueObjectInspector();
        
        // \1 followed by each key and then each value
        Map<?, ?> map = moi.getMap(o);
        for(Map.Entry<?, ?> entry: map.entrySet()) {
          buffer.write((byte)1, invert);
          serialize(buffer, entry.getKey(), koi, invert);
          serialize(buffer, entry.getValue(), voi, invert);
        }
        // and \0 to terminate
        buffer.write((byte)0, invert);
        return;
      }
      case STRUCT: {
        StructObjectInspector soi = (StructObjectInspector)oi;
        List<? extends StructField> fields = soi.getAllStructFieldRefs();
        
        for (int i=0; i<fields.size(); i++) {
          serialize(buffer, 
              soi.getStructFieldData(o, fields.get(i)),
              fields.get(i).getFieldObjectInspector(), 
              invert);
        }
        return;
      }

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    return iprot.readString();
  }
  
  @Override
  public void serialize(Object o, ObjectInspector oi, TProtocol oprot) throws TException, SerDeException, NoSuchFieldException,IllegalAccessException  {
    StringObjectInspector poi = (StringObjectInspector) oi;
    if (oprot instanceof WriteTextProtocol) {
      ((WriteTextProtocol)oprot).writeText((Text)poi.getPrimitiveWritableObject(o));
    } else {
      oprot.writeString((String)poi.getPrimitiveJavaObject(o));
    }
  }

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    // Get all data out.
    for (int c = 0; c < numColumns; c++) {
      Object field = outputRowOI.getStructFieldData(obj, outputFieldRefs.get(c));
      ObjectInspector fieldOI = outputFieldRefs.get(c).getFieldObjectInspector();
      // The data must be of type String
      StringObjectInspector fieldStringOI = (StringObjectInspector)fieldOI;
      // Convert the field to Java class String, because objects of String type can be 
      // stored in String, Text, or some other classes. 
      outputFields[c] = fieldStringOI.getPrimitiveJavaObject(field); 
    }
    
    // Format the String
    String outputRowString = null;
    try {

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        byteStream.write((byte) (v >> 8));
        byteStream.write((byte) (v));
        return warnedOnceNullMapKey;
      }
      case STRING: {
        StringObjectInspector soi = (StringObjectInspector) poi;
        Text t = soi.getPrimitiveWritableObject(obj);
        /* write byte size of the string which is a vint */
        int length = t.getLength();
        if (!skipLengthPrefix) {
          LazyBinaryUtils.writeVInt(byteStream, length);
        }

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        buffer.write((byte) (v >> 8), invert);
        buffer.write((byte) v, invert);
        return;
      }
      case STRING: {
        StringObjectInspector soi = (StringObjectInspector) poi;
        Text t = soi.getPrimitiveWritableObject(o);
        serializeBytes(buffer, t.getBytes(), t.getLength(), invert);
        return;
          }


      case BINARY: {
        BinaryObjectInspector baoi = (BinaryObjectInspector) poi;
        BytesWritable ba = baoi.getPrimitiveWritableObject(o);
        byte[] toSer = new byte[ba.getLength()];
        System.arraycopy(ba.getBytes(), 0, toSer, 0, ba.getLength());
        serializeBytes(buffer, toSer, ba.getLength(), invert);
        return;
      }
      case TIMESTAMP: {
        TimestampObjectInspector toi = (TimestampObjectInspector) poi;
        TimestampWritable t = toi.getPrimitiveWritableObject(o);
        byte[] data = t.getBinarySortable();
        for (int i = 0; i < data.length; i++) {
          buffer.write(data[i], invert);
        }
        return;
      }
      default: {
        throw new RuntimeException("Unrecognized type: "
            + poi.getPrimitiveCategory());
      }
      }
    }
    case LIST: {
      ListObjectInspector loi = (ListObjectInspector) oi;
      ObjectInspector eoi = loi.getListElementObjectInspector();


      // \1 followed by each element
      int size = loi.getListLength(o);
      for (int eid = 0; eid < size; eid++) {
        buffer.write((byte) 1, invert);
        serialize(buffer, loi.getListElement(o, eid), eoi, invert);
      }
      // and \0 to terminate
      buffer.write((byte) 0, invert);
      return;
    }
    case MAP: {
      MapObjectInspector moi = (MapObjectInspector) oi;
      ObjectInspector koi = moi.getMapKeyObjectInspector();
      ObjectInspector voi = moi.getMapValueObjectInspector();


      // \1 followed by each key and then each value
      Map<?, ?> map = moi.getMap(o);
      for (Map.Entry<?, ?> entry : map.entrySet()) {
        buffer.write((byte) 1, invert);
        serialize(buffer, entry.getKey(), koi, invert);
        serialize(buffer, entry.getValue(), voi, invert);
      }
      // and \0 to terminate
      buffer.write((byte) 0, invert);
      return;
    }
    case STRUCT: {
      StructObjectInspector soi = (StructObjectInspector) oi;
      List<? extends StructField> fields = soi.getAllStructFieldRefs();


      for (int i = 0; i < fields.size(); i++) {
        serialize(buffer, soi.getStructFieldData(o, fields.get(i)), fields.get(
            i).getFieldObjectInspector(), invert);
      }
      return;
    }
    case UNION: {

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        r.set(doi.get(o));
        tbOut.write(r);
        return;
      }
      case STRING: {
        StringObjectInspector soi = (StringObjectInspector) poi;
        Text t = soi.getPrimitiveWritableObject(o);
        tbOut.write(t);
        return;
      }
      default: {
        throw new RuntimeException("Unrecognized type: "

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      Object field = outputRowOI
          .getStructFieldData(obj, outputFieldRefs.get(c));
      ObjectInspector fieldOI = outputFieldRefs.get(c)
          .getFieldObjectInspector();
      // The data must be of type String
      StringObjectInspector fieldStringOI = (StringObjectInspector) fieldOI;
      // Convert the field to Java class String, because objects of String type
      // can be
      // stored in String, Text, or some other classes.
      outputFields[c] = fieldStringOI.getPrimitiveJavaObject(field);
    }


    // Format the String
    String outputRowString = null;
    try {

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    org.apache.hadoop.mapred.RecordReader reader =
        in.getRecordReader(splits[0], conf, Reporter.NULL);
    Object key = reader.createKey();
    Writable value = (Writable) reader.createValue();
    List<? extends StructField> fields =inspector.getAllStructFieldRefs();
    StringObjectInspector strInspector = (StringObjectInspector)
        fields.get(0).getFieldObjectInspector();
    assertEquals(true, reader.next(key, value));
    assertEquals("owen", strInspector.getPrimitiveJavaObject(inspector.
        getStructFieldData(value, fields.get(0))));
    assertEquals(true, reader.next(key, value));
    assertEquals("beth", strInspector.getPrimitiveJavaObject(inspector.
        getStructFieldData(value, fields.get(0))));
    assertEquals(true, reader.next(key, value));
    assertEquals("laurel", strInspector.getPrimitiveJavaObject(inspector.
        getStructFieldData(value, fields.get(0))));
    assertEquals(true, reader.next(key, value));
    assertEquals("hazen", strInspector.getPrimitiveJavaObject(inspector.
        getStructFieldData(value, fields.get(0))));
    assertEquals(true, reader.next(key, value));
    assertEquals("colin", strInspector.getPrimitiveJavaObject(inspector.
        getStructFieldData(value, fields.get(0))));
    assertEquals(true, reader.next(key, value));
    assertEquals("miles", strInspector.getPrimitiveJavaObject(inspector.
        getStructFieldData(value, fields.get(0))));
    assertEquals(false, reader.next(key, value));
    reader.close();
  }

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    org.apache.hadoop.mapred.RecordReader<NullWritable, OrcLazyRow> reader =
        in.getRecordReader(splits[0], conf, Reporter.NULL);
    NullWritable key = reader.createKey();
    OrcLazyRow value = (OrcLazyRow) reader.createValue();
    List<? extends StructField> fields =inspector.getAllStructFieldRefs();
    StringObjectInspector strInspector = (StringObjectInspector)
        fields.get(0).getFieldObjectInspector();
    assertEquals(true, reader.next(key, value));
    assertEquals("a", strInspector.getPrimitiveJavaObject(inspector.
        getStructFieldData(value, fields.get(0))));
    assertEquals(true, reader.next(key, value));
    assertEquals("b", strInspector.getPrimitiveJavaObject(inspector.
        getStructFieldData(value, fields.get(0))));
    assertEquals(true, reader.next(key, value));
    assertEquals("c", strInspector.getPrimitiveJavaObject(inspector.
        getStructFieldData(value, fields.get(0))));
    assertEquals(false, reader.next(key, value));
    reader.close();
  }

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        getStructFieldRef("float1").getFieldObjectInspector();
    DoubleObjectInspector dbl = (DoubleObjectInspector) readerInspector.
        getStructFieldRef("double1").getFieldObjectInspector();
    BinaryObjectInspector bi = (BinaryObjectInspector) readerInspector.
        getStructFieldRef("bytes1").getFieldObjectInspector();
    StringObjectInspector st = (StringObjectInspector) readerInspector.
        getStructFieldRef("string1").getFieldObjectInspector();
    StructObjectInspector mid = (StructObjectInspector) readerInspector.
        getStructFieldRef("middle").getFieldObjectInspector();
    List<? extends StructField> midFields =
        mid.getAllStructFieldRefs();
    ListObjectInspector midli =
        (ListObjectInspector) midFields.get(0).getFieldObjectInspector();
    StructObjectInspector inner = (StructObjectInspector)
        midli.getListElementObjectInspector();
    List<? extends StructField> inFields = inner.getAllStructFieldRefs();
    IntObjectInspector inner_in = (IntObjectInspector) inFields.get(0).getFieldObjectInspector();
    StringObjectInspector inner_st = (StringObjectInspector) inFields.get(1).getFieldObjectInspector();
    ListObjectInspector li = (ListObjectInspector) readerInspector.
        getStructFieldRef("list").getFieldObjectInspector();
    MapObjectInspector ma = (MapObjectInspector) readerInspector.
        getStructFieldRef("map").getFieldObjectInspector();
    StructObjectInspector lc = (StructObjectInspector)
        li.getListElementObjectInspector();
    StringObjectInspector mk = (StringObjectInspector)
        ma.getMapKeyObjectInspector();
    StructObjectInspector mv = (StructObjectInspector)
        ma.getMapValueObjectInspector();
    RecordReader rows = reader.rows(null);
    Object row = rows.next(null);
    assertNotNull(row);
    // check the contents of the first row
    assertEquals(false,
        bo.get(readerInspector.getStructFieldData(row, fields.get(0))));
    assertEquals(1, by.get(readerInspector.getStructFieldData(row,
        fields.get(1))));
    assertEquals(1024, sh.get(readerInspector.getStructFieldData(row,
        fields.get(2))));
    assertEquals(65536, in.get(readerInspector.getStructFieldData(row,
        fields.get(3))));
    assertEquals(Long.MAX_VALUE, lo.get(readerInspector.
        getStructFieldData(row, fields.get(4))));
    assertEquals(1.0, fl.get(readerInspector.getStructFieldData(row,
        fields.get(5))), 0.00001);
    assertEquals(-15.0, dbl.get(readerInspector.getStructFieldData(row,
        fields.get(6))), 0.00001);
    assertEquals(bytes(0,1,2,3,4), bi.getPrimitiveWritableObject(
        readerInspector.getStructFieldData(row, fields.get(7))));
    assertEquals("hi", st.getPrimitiveJavaObject(readerInspector.
        getStructFieldData(row, fields.get(8))));
    List<?> midRow = midli.getList(mid.getStructFieldData(readerInspector.
        getStructFieldData(row, fields.get(9)), midFields.get(0)));
    assertNotNull(midRow);
    assertEquals(2, midRow.size());
    assertEquals(1, inner_in.get(inner.getStructFieldData(midRow.get(0),
        inFields.get(0))));
    assertEquals("bye", inner_st.getPrimitiveJavaObject(inner.getStructFieldData
        (midRow.get(0), inFields.get(1))));
    assertEquals(2, inner_in.get(inner.getStructFieldData(midRow.get(1),
        inFields.get(0))));
    assertEquals("sigh", inner_st.getPrimitiveJavaObject(inner.getStructFieldData
        (midRow.get(1), inFields.get(1))));
    List<?> list = li.getList(readerInspector.getStructFieldData(row,
        fields.get(10)));
    assertEquals(2, list.size());
    assertEquals(3, inner_in.get(inner.getStructFieldData(list.get(0),
        inFields.get(0))));
    assertEquals("good", inner_st.getPrimitiveJavaObject(inner.getStructFieldData
        (list.get(0), inFields.get(1))));
    assertEquals(4, inner_in.get(inner.getStructFieldData(list.get(1),
        inFields.get(0))));
    assertEquals("bad", inner_st.getPrimitiveJavaObject(inner.getStructFieldData
        (list.get(1), inFields.get(1))));
    Map<?,?> map = ma.getMap(readerInspector.getStructFieldData(row,
        fields.get(11)));
    assertEquals(0, map.size());


    // check the contents of second row
    assertEquals(true, rows.hasNext());
    row = rows.next(row);
    assertEquals(true,
        bo.get(readerInspector.getStructFieldData(row, fields.get(0))));
    assertEquals(100, by.get(readerInspector.getStructFieldData(row,
        fields.get(1))));
    assertEquals(2048, sh.get(readerInspector.getStructFieldData(row,
        fields.get(2))));
    assertEquals(65536, in.get(readerInspector.getStructFieldData(row,
        fields.get(3))));
    assertEquals(Long.MAX_VALUE, lo.get(readerInspector.
        getStructFieldData(row, fields.get(4))));
    assertEquals(2.0, fl.get(readerInspector.getStructFieldData(row,
        fields.get(5))), 0.00001);
    assertEquals(-5.0, dbl.get(readerInspector.getStructFieldData(row,
        fields.get(6))), 0.00001);
    assertEquals(bytes(), bi.getPrimitiveWritableObject(
        readerInspector.getStructFieldData(row, fields.get(7))));
    assertEquals("bye", st.getPrimitiveJavaObject(readerInspector.
        getStructFieldData(row, fields.get(8))));
    midRow = midli.getList(mid.getStructFieldData(readerInspector.
        getStructFieldData(row, fields.get(9)), midFields.get(0)));
    assertNotNull(midRow);
    assertEquals(2, midRow.size());
    assertEquals(1, inner_in.get(inner.getStructFieldData(midRow.get(0),
        inFields.get(0))));
    assertEquals("bye", inner_st.getPrimitiveJavaObject(inner.getStructFieldData
        (midRow.get(0), inFields.get(1))));
    assertEquals(2, inner_in.get(inner.getStructFieldData(midRow.get(1),
        inFields.get(0))));
    assertEquals("sigh", inner_st.getPrimitiveJavaObject(inner.getStructFieldData
        (midRow.get(1), inFields.get(1))));
    list = li.getList(readerInspector.getStructFieldData(row,
        fields.get(10)));
    assertEquals(3, list.size());
    assertEquals(100000000, inner_in.get(inner.getStructFieldData(list.get(0),
        inFields.get(0))));
    assertEquals("cat", inner_st.getPrimitiveJavaObject(inner.getStructFieldData
        (list.get(0), inFields.get(1))));
    assertEquals(-100000, inner_in.get(inner.getStructFieldData(list.get(1),
        inFields.get(0))));
    assertEquals("in", inner_st.getPrimitiveJavaObject(inner.getStructFieldData
        (list.get(1), inFields.get(1))));
    assertEquals(1234, inner_in.get(inner.getStructFieldData(list.get(2),
        inFields.get(0))));
    assertEquals("hat", inner_st.getPrimitiveJavaObject(inner.getStructFieldData
        (list.get(2), inFields.get(1))));
    map = ma.getMap(readerInspector.getStructFieldData(row,
        fields.get(11)));
    assertEquals(2, map.size());
    boolean[] found = new boolean[2];
    for(Object key: map.keySet()) {
      String str = mk.getPrimitiveJavaObject(key);
      if (str.equals("chani")) {
        assertEquals(false, found[0]);
        assertEquals(5, inner_in.get(inner.getStructFieldData(map.get(key),
            inFields.get(0))));
        assertEquals(str, inner_st.getPrimitiveJavaObject(

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