Package org.apache.hadoop.zebra.types

Examples of org.apache.hadoop.zebra.types.Schema

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    BasicTable.Writer writer = new BasicTable.Writer(path, STR_SCHEMA,
        STR_STORAGE, false, conf);

    writer.finish();

    Schema schema = writer.getSchema();
    Tuple tuple = TypesUtils.createTuple(schema);

    BasicTable.Writer writer1 = new BasicTable.Writer(path, conf);
    int part = 0;
    TableInserter inserter = writer1.getInserter("part" + part, true);
    TypesUtils.resetTuple(tuple);
    DataBag bag1 = TypesUtils.createBag();
    Schema schColl = schema.getColumn(0).getSchema();
    Tuple tupColl1 = TypesUtils.createTuple(schColl);
    Tuple tupColl2 = TypesUtils.createTuple(schColl);

    DataBag bag2 = TypesUtils.createBag();
    Schema schColl2 = schema.getColumn(1).getSchema();
    Tuple tupColl2_1 = TypesUtils.createTuple(schColl2);
    Tuple tupColl2_2 = TypesUtils.createTuple(schColl2);
    Tuple collRecord1;
    try {
      collRecord1 = TypesUtils.createTuple(new Schema("f1:int, f2:string"));
    } catch (ParseException e) {
      e.printStackTrace();
      throw new IOException(e);
    }
    Tuple collRecord2;
    try {
      collRecord2 = TypesUtils.createTuple(new Schema("f1:int, f2:string"));
    } catch (ParseException e) {
      e.printStackTrace();
      throw new IOException(e);
    }

    // c3:collection(c3_1:collection(e:int,f:bool))
    DataBag bag3 = TypesUtils.createBag();
    Schema schColl3 = schema.getColumn(2).getSchema();
    DataBag bag3_1 = TypesUtils.createBag();
    DataBag bag3_2 = TypesUtils.createBag();

    Tuple tupColl3_1 = null;
    try {
      tupColl3_1 = TypesUtils.createTuple(new Schema("e:int,f:bool"));
    } catch (ParseException e) {
      e.printStackTrace();
      throw new IOException(e);
    }
    Tuple tupColl3_2;
    try {
      tupColl3_2 = TypesUtils.createTuple(new Schema("e:int,f:bool"));
    } catch (ParseException e) {
      e.printStackTrace();
      throw new IOException(e);
    }

    Tuple tupColl3_3 = null;
    try {
      tupColl3_3 = TypesUtils.createTuple(new Schema("e:int,f:bool"));
    } catch (ParseException e) {
      e.printStackTrace();
      throw new IOException(e);
    }
    Tuple tupColl3_4;
    try {
      tupColl3_4 = TypesUtils.createTuple(new Schema("e:int,f:bool"));
    } catch (ParseException e) {
      e.printStackTrace();
      throw new IOException(e);
    }
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    // drop any previous tables
    BasicTable.drop(path, conf);
    BasicTable.Writer writer = new BasicTable.Writer(path, STR_SCHEMA,
        STR_STORAGE, false, conf);
    writer.finish();
    Schema schema = writer.getSchema();
    Tuple tuple = TypesUtils.createTuple(schema);
    BasicTable.Writer writer1 = new BasicTable.Writer(path, conf);
    int part = 0;
    TableInserter inserter = writer1.getInserter("part" + part, true);
    TypesUtils.resetTuple(tuple);

    Tuple record1;
    try {
      record1 = TypesUtils.createTuple(new Schema("f1:int, f2:string"));
    } catch (ParseException e) {
      e.printStackTrace();
      throw new IOException(e);
    }

    Tuple record2;
    try {
      record2 = TypesUtils.createTuple(new Schema("f1:int, f2:string"));
    } catch (ParseException e) {
      e.printStackTrace();
      throw new IOException(e);
    }

    Tuple record3;
    try {
      record3 = TypesUtils.createTuple(new Schema("f1:int, f2:string"));
    } catch (ParseException e) {
      e.printStackTrace();
      throw new IOException(e);
    }
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    BasicTable.drop(path, conf);
    // Build Table and column groups
    BasicTable.Writer writer = new BasicTable.Writer(path, STR_SCHEMA,
        STR_STORAGE, false, conf);
    writer.finish();
    Schema schema = writer.getSchema();
    Tuple tuple = TypesUtils.createTuple(schema);
    BasicTable.Writer writer1 = new BasicTable.Writer(path, conf);
    int part = 0;
    TableInserter inserter = writer1.getInserter("part" + part, true);
    TypesUtils.resetTuple(tuple);

    Tuple tupRecord1;
    try {
      tupRecord1 = TypesUtils.createTuple(schema.getColumnSchema("r1")
          .getSchema());
    } catch (ParseException e) {
      e.printStackTrace();
      throw new IOException(e);
    }

    Tuple tupRecord2;
    try {
      tupRecord2 = TypesUtils.createTuple(schema.getColumnSchema("r2")
          .getSchema());
    } catch (ParseException e) {
      e.printStackTrace();
      throw new IOException(e);
    }

    Tuple tupRecord3;
    try {
      tupRecord3 = TypesUtils.createTuple(new Schema("f3:float, f4:map(int)"));
    } catch (ParseException e) {
      e.printStackTrace();
      throw new IOException(e);
    }
    HashMap<String, Long> map1 = new HashMap<String, Long>();
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    BasicTable.Writer writer = new BasicTable.Writer(path, strSchema, storage,
        sorted, conf);
    writer.finish();

    int total = 0;
    Schema schema = writer.getSchema();
    String colNames[] = schema.getColumns();
    Tuple tuple = TypesUtils.createTuple(schema);

    for (int i = 0; i < parts; ++i) {
      writer = new BasicTable.Writer(path, conf);
      TableInserter inserter = writer.getInserter(
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    // drop any previous tables
    BasicTable.drop(path, conf);
    BasicTable.Writer writer = new BasicTable.Writer(path, STR_SCHEMA,
        STR_STORAGE, false, conf);
    writer.finish();
    Schema schema = writer.getSchema();
    Tuple tuple = TypesUtils.createTuple(schema);
    BasicTable.Writer writer1 = new BasicTable.Writer(path, conf);
    int part = 0;
    TableInserter inserter = writer1.getInserter("part" + part, true);
    TypesUtils.resetTuple(tuple);
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    } catch (Exception e) {
      e.printStackTrace();
      Assert.fail("Should Not throw exception");
    }
    writer.finish();
    Schema schema = writer.getSchema();
    Tuple tuple = TypesUtils.createTuple(schema);
    BasicTable.Writer writer1 = new BasicTable.Writer(path, conf);
    int part = 0;
    TableInserter inserter = writer1.getInserter("part" + part, true);
    TypesUtils.resetTuple(tuple);
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    BasicTable.drop(path, conf);
    // Build Table and column groups
    BasicTable.Writer writer = new BasicTable.Writer(path, STR_SCHEMA,
        STR_STORAGE, false, conf);
    writer.finish();
    Schema schema = writer.getSchema();
    Tuple tuple = TypesUtils.createTuple(schema);
    BasicTable.Writer writer1 = new BasicTable.Writer(path, conf);
    int part = 0;
    TableInserter inserter = writer1.getInserter("part" + part, true);
    TypesUtils.resetTuple(tuple);

    Tuple tupRecord1;
    try {
      tupRecord1 = TypesUtils.createTuple(schema.getColumnSchema("r1")
          .getSchema());
    } catch (ParseException e) {
      e.printStackTrace();
      throw new IOException(e);
    }

    Tuple tupRecord2;
    try {
      tupRecord2 = TypesUtils.createTuple(schema.getColumnSchema("r2")
          .getSchema());
    } catch (ParseException e) {
      e.printStackTrace();
      throw new IOException(e);
    }

    Tuple tupRecord3;
    try {
      tupRecord3 = TypesUtils.createTuple(new Schema("f3:float, f4:map(int)"));
    } catch (ParseException e) {
      e.printStackTrace();
      throw new IOException(e);
    }
    // insert data in row 1
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  }

  @Test
  public void testBlankSchema() throws IOException, ParseException {
    System.out.println("testBlankSchema");
    Schema schema = Schema.parse(" ");
    Assert.assertEquals(0, schema.getColumns().length);
  }
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  }

  @Test
  public void test1Column() throws IOException, ParseException {
    System.out.println("test1SimpleColumn");
    Schema schema = Schema.parse("  abc");
    Assert.assertEquals(1, schema.getColumns().length);
    Assert.assertEquals("abc", schema.getColumns()[0]);
  }
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  }

  @Test
  public void test2Columns() throws IOException, ParseException {
    System.out.println("test2SimpleColumns");
    Schema schema = Schema.parse("abc, def ");
    Assert.assertEquals(2, schema.getColumns().length);
    Assert.assertEquals("abc", schema.getColumns()[0]);
    Assert.assertEquals("def", schema.getColumns()[1]);
  }
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Related Classes of org.apache.hadoop.zebra.types.Schema

  • org.apache.hadoop.zebra.io.BasicTable$Reader
  • org.apache.hadoop.zebra.io.BasicTable$SchemaFile
  • org.apache.hadoop.zebra.io.ColumnGroup$Writer
  • org.apache.hadoop.zebra.io.TestBasicTable
  • org.apache.hadoop.zebra.io.TestBasicTableMapSplits
  • org.apache.hadoop.zebra.io.TestBasicTableProjections
  • org.apache.hadoop.zebra.io.TestBasicTableSplits
  • org.apache.hadoop.zebra.io.TestCollection
  • org.apache.hadoop.zebra.io.TestColumnGroup
  • org.apache.hadoop.zebra.io.TestColumnGroupProjections
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