Package org.apache.hcatalog.data

Examples of org.apache.hcatalog.data.DefaultHCatRecord


               
                count++;
                sum += Double.parseDouble(gpa.toString());
            }
           
            HCatRecord record = new DefaultHCatRecord(2);
            record.set(0, name);
            record.set(1, Double.toString(sum));
           
            context.write(null, record);
        }
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        b = (Long)value.get(3);
        f = (Float)value.get(4);
        d = (Double)value.get(5);
        s = (String)value.get(6);
       
        HCatRecord record = new DefaultHCatRecord(7);
        record.set(0, t);
        record.set(1, si);
        record.set(2, i);
        record.set(3, b);
        record.set(4, f);
        record.set(5, d);
        record.set(6, s);
       
        context.write(null, record);

    }
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    throws IOException ,InterruptedException {
        s = value.get(0)==null?null:(String)value.get(0);
        i = value.get(1)==null?null:(Integer)value.get(1);
        d = value.get(2)==null?null:(Double)value.get(2);
       
        HCatRecord record = new DefaultHCatRecord(3);
        record.set(0, s);
        record.set(1, i);
        record.set(2, d);
       
        context.write(null, record);

    }
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        name = (String)value.get(0);
        age = (Integer)value.get(1);
        gpa = (Double)value.get(2);
        gpa = Math.floor(gpa) + 0.1;
       
        HCatRecord record = new DefaultHCatRecord(3);
        record.set(0, name);
        record.set(1, age);
        record.set(2, gpa);
       
        context.write(null, record);

    }
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    for (int i = 0; i < 20; i++) {
      List<Object> objList = new ArrayList<Object>();

      objList.add(i);
      objList.add("strvalue" + i);
      writeRecords.add(new DefaultHCatRecord(objList));
    }

    partitionColumns = new ArrayList<HCatFieldSchema>();
    partitionColumns.add(HCatSchemaUtils.getHCatFieldSchema(new FieldSchema("c1", serdeConstants.INT_TYPE_NAME, "")));
    partitionColumns.add(HCatSchemaUtils.getHCatFieldSchema(new FieldSchema("c2", serdeConstants.STRING_TYPE_NAME, "")));
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      objList.add(i);
      objList.add("strvalue" + i);
      objList.add("str2value" + i);

      writeRecords.add(new DefaultHCatRecord(objList));
    }

    Map<String, String> partitionMap = new HashMap<String, String>();
    partitionMap.put("part1", "p1value5");
    partitionMap.put("part0", "p0value5");

    runMRCreate(partitionMap, partitionColumns, writeRecords, 10, true);

    tableSchema = getTableSchema();

    //assert that c3 has got added to table schema
    assertEquals(5, tableSchema.getFields().size());
    assertEquals("c1", tableSchema.getFields().get(0).getName());
    assertEquals("c2", tableSchema.getFields().get(1).getName());
    assertEquals("c3", tableSchema.getFields().get(2).getName());
    assertEquals("part1", tableSchema.getFields().get(3).getName());
    assertEquals("part0", tableSchema.getFields().get(4).getName());

    //Test that changing column data type fails
    partitionMap.clear();
    partitionMap.put("part1", "p1value6");
    partitionMap.put("part0", "p0value6");

    partitionColumns = new ArrayList<HCatFieldSchema>();
    partitionColumns.add(HCatSchemaUtils.getHCatFieldSchema(new FieldSchema("c1", serdeConstants.INT_TYPE_NAME, "")));
    partitionColumns.add(HCatSchemaUtils.getHCatFieldSchema(new FieldSchema("c2", serdeConstants.INT_TYPE_NAME, "")));

    IOException exc = null;
    try {
      runMRCreate(partitionMap, partitionColumns, writeRecords, 20, true);
    } catch (IOException e) {
      exc = e;
    }

    assertTrue(exc != null);
    assertTrue(exc instanceof HCatException);
    assertEquals(ErrorType.ERROR_SCHEMA_TYPE_MISMATCH, ((HCatException) exc).getErrorType());

    //Test that partition key is not allowed in data
    partitionColumns = new ArrayList<HCatFieldSchema>();
    partitionColumns.add(HCatSchemaUtils.getHCatFieldSchema(new FieldSchema("c1", serdeConstants.INT_TYPE_NAME, "")));
    partitionColumns.add(HCatSchemaUtils.getHCatFieldSchema(new FieldSchema("c2", serdeConstants.STRING_TYPE_NAME, "")));
    partitionColumns.add(HCatSchemaUtils.getHCatFieldSchema(new FieldSchema("c3", serdeConstants.STRING_TYPE_NAME, "")));
    partitionColumns.add(HCatSchemaUtils.getHCatFieldSchema(new FieldSchema("part1", serdeConstants.STRING_TYPE_NAME, "")));

    List<HCatRecord> recordsContainingPartitionCols = new ArrayList<HCatRecord>(20);
    for (int i = 0; i < 20; i++) {
      List<Object> objList = new ArrayList<Object>();

      objList.add(i);
      objList.add("c2value" + i);
      objList.add("c3value" + i);
      objList.add("p1value6");

      recordsContainingPartitionCols.add(new DefaultHCatRecord(objList));
    }

    exc = null;
    try {
      runMRCreate(partitionMap, partitionColumns, recordsContainingPartitionCols, 20, true);
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      objList.add(i);
      objList.add("co strvalue" + i);
      objList.add("co str2value" + i);

      writeRecords.add(new DefaultHCatRecord(objList));
    }

    Map<String, String> partitionMap = new HashMap<String, String>();
    partitionMap.put("part1", "p1value8");
    partitionMap.put("part0", "p0value8");

    Exception exc = null;
    try {
      runMRCreate(partitionMap, partitionColumns, writeRecords, 10, true);
    } catch (IOException e) {
      exc = e;
    }

    assertTrue(exc != null);
    assertTrue(exc instanceof HCatException);
    assertEquals(ErrorType.ERROR_SCHEMA_COLUMN_MISMATCH, ((HCatException) exc).getErrorType());


    partitionColumns = new ArrayList<HCatFieldSchema>();
    partitionColumns.add(HCatSchemaUtils.getHCatFieldSchema(new FieldSchema("c1", serdeConstants.INT_TYPE_NAME, "")));
    partitionColumns.add(HCatSchemaUtils.getHCatFieldSchema(new FieldSchema("c2", serdeConstants.STRING_TYPE_NAME, "")));

    writeRecords = new ArrayList<HCatRecord>();

    for (int i = 0; i < 10; i++) {
      List<Object> objList = new ArrayList<Object>();

      objList.add(i);
      objList.add("co strvalue" + i);

      writeRecords.add(new DefaultHCatRecord(objList));
    }

    runMRCreate(partitionMap, partitionColumns, writeRecords, 10, true);

    //Read should get 10 + 20 + 10 + 10 + 20 rows
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      List<Object> objList = new ArrayList<Object>();

      objList.add(i);
      objList.add("strvalue" + i);
      objList.add(String.valueOf((i % mod) + offset));
      writeRecords.add(new DefaultHCatRecord(objList));
    }
  }
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      if (r == null) {
        errorTracker.incErrors(t);
        continue;
      }

      DefaultHCatRecord dr = new DefaultHCatRecord(outputSchema.size());
      int i = 0;
      for (String fieldName : outputSchema.getFieldNames()) {
        if (dataSchema.getPosition(fieldName) != null) {
          dr.set(i, r.get(fieldName, dataSchema));
        } else {
          dr.set(i, valuesNotInDataCols.get(fieldName));
        }
        i++;
      }

      currentHCatRecord = dr;
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    for (int i = 0; i < 20; i++) {
      List<Object> objList = new ArrayList<Object>();

      objList.add(i);
      objList.add("strvalue" + i);
      writeRecords.add(new DefaultHCatRecord(objList));
    }

    partitionColumns = new ArrayList<HCatFieldSchema>();
    partitionColumns.add(HCatSchemaUtils.getHCatFieldSchema(new FieldSchema("c1", serdeConstants.INT_TYPE_NAME, "")));
    partitionColumns.add(HCatSchemaUtils.getHCatFieldSchema(new FieldSchema("c2", serdeConstants.STRING_TYPE_NAME, "")));
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