Package org.apache.hadoop.zebra.types

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

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    return projection;
  }
 
  @Override
  public Schema getSchema() {
    Schema result;
    try {
       result = Projection.toSchema(projection);
    } catch (ParseException e) {
      throw new AssertionError("Invalid Projection: "+e.getMessage());
    }
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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, Float> map1 = new HashMap<String, Float>();
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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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     if (!version.compatibleWith(SCHEMA_VERSION)) {
       new IOException("Incompatible versions, expecting: " + SCHEMA_VERSION
            + "; found in file: " + version);
     }
     String s = WritableUtils.readString(in);
     schema = new Schema(s);
     sorted = WritableUtils.readVInt(in) == 1 ? true : false;
     comparator = WritableUtils.readString(in);
     in.close();
   }
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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);

    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"));
    } catch (ParseException e) {
      e.printStackTrace();
      throw new IOException(e);
    }

    // row 1
    tuple.set(0, true); // bool
    tuple.set(1, 1); // int
    tuple.set(2, 1001L); // long
    tuple.set(3, 1.1); // float
    tuple.set(4, "hello world 1"); // string
    tuple.set(5, new DataByteArray("hello byte 1")); // byte

    // r1:record(f1:int, f2:long
    tupRecord1.set(0, 1);
    tupRecord1.set(1, 1001L);
    tuple.set(6, tupRecord1);

    // r2:record(r3:record(f3:float, f4))
    tupRecord2.set(0, tupRecord3);
    tupRecord3.set(0, 1.3);
    tupRecord3.set(1, new DataByteArray("r3 row 1 byte array "));
    tuple.set(7, tupRecord2);

    // m1:map(string)
    Map<String, String> m1 = new HashMap<String, String>();
    m1.put("a", "A");
    m1.put("b", "B");
    m1.put("c", "C");
    tuple.set(8, m1);

    // m2:map(map(int))
    HashMap<String, Map> m2 = new HashMap<String, Map>();
    Map<String, Integer> m3 = new HashMap<String, Integer>();
    m3.put("m311", 311);
    m3.put("m321", 321);
    m3.put("m331", 331);
    Map<String, Integer> m4 = new HashMap<String, Integer>();
    m4.put("m411", 411);
    m4.put("m421", 421);
    m4.put("m431", 431);
    m2.put("x", m3);
    m2.put("y", m4);
    tuple.set(9, m2);

    // c:collection(f13:double, f14:float, f15:bytes)
    DataBag bagColl = TypesUtils.createBag();
    Schema schColl = schema.getColumn(10).getSchema();
    Tuple tupColl1 = TypesUtils.createTuple(schColl);
    Tuple tupColl2 = TypesUtils.createTuple(schColl);
    byte[] abs1 = new byte[3];
    byte[] abs2 = new byte[4];
    tupColl1.set(0, 3.1415926);
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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"));
    } catch (ParseException e) {
      e.printStackTrace();
      throw new IOException(e);
    }
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    ColumnGroup.Writer writer = new ColumnGroup.Writer(path, strSchema, sorted,
        "pig", "lzo2", false, conf);
    writer.finish();

    int total = 0;
    Schema schema = new Schema(strSchema);
    String colNames[] = schema.getColumns();
    Tuple tuple = TypesUtils.createTuple(schema);
    int[] permutation = new int[parts];
    for (int i = 0; i < parts; ++i) {
      permutation[i] = i;
    }
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        "pig", "lzo2", false, conf);
    writer.finish();

    int total = 0;
    DupKeyGen keyGen = new DupKeyGen(10, rows * 3);
    Schema schema = new Schema(strSchema);
    String colNames[] = schema.getColumns();
    Tuple tuple = TypesUtils.createTuple(schema);
    int[] permutation = new int[parts];
    for (int i = 0; i < parts; ++i) {
      permutation[i] = i;
    }
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     * @throws IOException
     */
    public Writer(Path path, String schema, boolean sorted, String serializer,
        String compressor, boolean overwrite, Configuration conf)
        throws IOException, ParseException {
      this(path, new Schema(schema), sorted, serializer, compressor, overwrite,
          conf);
    }
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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);

    tuple.set(0, true);

    Tuple tupRecord;
    try {
      tupRecord = TypesUtils.createTuple(schema.getColumnSchema("r")
          .getSchema());
    } catch (ParseException e) {
      e.printStackTrace();
      throw new IOException(e);
    }
    tupRecord.set(0, 1);
    tupRecord.set(1, 1001L);
    tuple.set(1, tupRecord);

    Map<String, String> map = new HashMap<String, String>();
    map.put("a", "x");
    map.put("b", "y");
    map.put("c", "z");
    tuple.set(2, map);

    DataBag bagColl = TypesUtils.createBag();
    Schema schColl = schema.getColumn(3).getSchema();
    Tuple tupColl1 = TypesUtils.createTuple(schColl);
    Tuple tupColl2 = TypesUtils.createTuple(schColl);
    byte[] abs1 = new byte[3];
    byte[] abs2 = new byte[4];
    tupColl1.set(0, 3.1415926);
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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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