Package org.apache.hadoop.hive.metastore.api

Examples of org.apache.hadoop.hive.metastore.api.StorageDescriptor

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  /**
   * Initialize an emtpy table.
   */
  static org.apache.hadoop.hive.metastore.api.Table
  getEmptyTable(String databaseName, String tableName) {
    StorageDescriptor sd = new StorageDescriptor();
    {
      sd.setSerdeInfo(new SerDeInfo());
      sd.setNumBuckets(-1);
      sd.setBucketCols(new ArrayList<String>());
      sd.setCols(new ArrayList<FieldSchema>());
      sd.setParameters(new HashMap<String, String>());
      sd.setSortCols(new ArrayList<Order>());
      sd.getSerdeInfo().setParameters(new HashMap<String, String>());
      // We have to use MetadataTypedColumnsetSerDe because LazySimpleSerDe does
      // not support a table with no columns.
      sd.getSerdeInfo().setSerializationLib(MetadataTypedColumnsetSerDe.class.getName());
      sd.getSerdeInfo().getParameters().put(Constants.SERIALIZATION_FORMAT, "1");
      sd.setInputFormat(SequenceFileInputFormat.class.getName());
      sd.setOutputFormat(HiveSequenceFileOutputFormat.class.getName());
    }

    org.apache.hadoop.hive.metastore.api.Table t = new org.apache.hadoop.hive.metastore.api.Table();
    {
      t.setSd(sd);
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    Table tbl = new Table();
    tbl.setDbName(databaseName);
    tbl.setTableName(tableName);
    tbl.setTableType("MANAGED_TABLE");
    StorageDescriptor sd = new StorageDescriptor();

    sd.setCols(getTableColumns());
    tbl.setPartitionKeys(getPartitionKeys());

    tbl.setSd(sd);

    sd.setBucketCols(new ArrayList<String>(2));
    sd.setSerdeInfo(new SerDeInfo());
    sd.getSerdeInfo().setName(tbl.getTableName());
    sd.getSerdeInfo().setParameters(new HashMap<String, String>());
    sd.getSerdeInfo().getParameters().put(
        org.apache.hadoop.hive.serde.Constants.SERIALIZATION_FORMAT, "1");
    sd.getSerdeInfo().setSerializationLib(serdeClass);
    sd.setInputFormat(inputFormat);
    sd.setOutputFormat(outputFormat);

    Map<String, String> tableParams = new HashMap<String, String>();
    tableParams.put(HCatConstants.HCAT_ISD_CLASS, inputSD);
    tableParams.put(HCatConstants.HCAT_OSD_CLASS, outputSD);
    tbl.setParameters(tableParams);
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        }

        //Handle duplicate publish
        handleDuplicatePublish(job, outputInfo, client, table);

        StorageDescriptor tblSD = table.getSd();
        HCatSchema tableSchema = HCatUtil.extractSchemaFromStorageDescriptor(tblSD);
        StorerInfo storerInfo = InitializeInput.extractStorerInfo(tblSD,table.getParameters());

        List<String> partitionCols = new ArrayList<String>();
        for(FieldSchema schema : table.getPartitionKeys()) {
          partitionCols.add(schema.getName());
        }

        Class<? extends HCatOutputStorageDriver> driverClass =
          (Class<? extends HCatOutputStorageDriver>) Class.forName(storerInfo.getOutputSDClass());
        HCatOutputStorageDriver driver = driverClass.newInstance();

        String tblLocation = tblSD.getLocation();
        String location = driver.getOutputLocation(job,
            tblLocation, partitionCols,
            outputInfo.getPartitionValues(),conf.get(HCatConstants.HCAT_DYNAMIC_PTN_JOBID));

        //Serialize the output info into the configuration
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      HCatException {
    try {
      Table ttable = jobInfo.getTable();
      org.apache.hadoop.hive.ql.metadata.Table table = new org.apache.hadoop.hive.ql.metadata.Table(
          ttable);
      StorageDescriptor tblSD = ttable.getSd();
      Path tblPath = new Path(tblSD.getLocation());
      Path path = new Path(tblPath, "_metadata");
      List<Partition> tpartitions = null;
      try {
        Map.Entry<org.apache.hadoop.hive.metastore.api.Table, List<Partition>> rv = EximUtil
            .readMetaData(fs, path);
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    if (tbl.isView()) {
      initialize(tbl, tpart);
      return;
    }

    StorageDescriptor sd = new StorageDescriptor();
    try {
      // replace with THRIFT-138
      TMemoryBuffer buffer = new TMemoryBuffer(1024);
      TBinaryProtocol prot = new TBinaryProtocol(buffer);
      tbl.getTTable().getSd().write(prot);

      sd.read(prot);
    } catch (TException e) {
      LOG.error("Could not create a copy of StorageDescription");
      throw new HiveException("Could not create a copy of StorageDescription");
    }
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    fields.add(new FieldSchema("colname", Constants.STRING_TYPE_NAME, ""));

    Table tbl = new Table();
    tbl.setDbName(dbName);
    tbl.setTableName(tblName);
    StorageDescriptor sd = new StorageDescriptor();
    sd.setCols(fields);
    tbl.setSd(sd);

    //sd.setLocation("hdfs://tmp");
    sd.setParameters(new HashMap<String, String>());
    sd.getParameters().put("test_param_1", "Use this for comments etc");
    sd.setBucketCols(new ArrayList<String>(2));
    sd.getBucketCols().add("name");
    sd.setSerdeInfo(new SerDeInfo());
    sd.getSerdeInfo().setName(tbl.getTableName());
    sd.getSerdeInfo().setParameters(new HashMap<String, String>());
    sd.getSerdeInfo().getParameters().put(
        org.apache.hadoop.hive.serde.Constants.SERIALIZATION_FORMAT, "1");
    sd.getSerdeInfo().setSerializationLib(
        org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe.class.getName());
    tbl.setPartitionKeys(fields);

    Map<String, String> tableParams = new HashMap<String, String>();
    tableParams.put(HCatConstants.HCAT_OSD_CLASS, RCFileOutputDriver.class.getName());
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  }

  @Override
  public void analyzeIndexDefinition(Table baseTable, Index index,
      Table indexTable) throws HiveException {
    StorageDescriptor storageDesc = index.getSd();
    if (this.usesIndexTable() && indexTable != null) {
      StorageDescriptor indexTableSd = storageDesc.deepCopy();
      List<FieldSchema> indexTblCols = indexTableSd.getCols();
      FieldSchema bucketFileName = new FieldSchema("_bucketname", "string", "");
      indexTblCols.add(bucketFileName);
      FieldSchema offSets = new FieldSchema("_offset", "bigint", "");
      indexTblCols.add(offSets);
      FieldSchema bitmaps = new FieldSchema("_bitmaps", "array<bigint>", "");
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      partCols.add(new FieldSchema("p1", Constants.STRING_TYPE_NAME, ""));

      Table tbl = new Table();
      tbl.setDbName(dbName);
      tbl.setTableName(tblName);
      StorageDescriptor sd = new StorageDescriptor();
      tbl.setSd(sd);
      sd.setCols(cols);
      sd.setCompressed(false);
      sd.setNumBuckets(1);
      sd.setParameters(new HashMap<String, String>());
      sd.setBucketCols(new ArrayList<String>());
      sd.setSerdeInfo(new SerDeInfo());
      sd.getSerdeInfo().setName(tbl.getTableName());
      sd.getSerdeInfo().setParameters(new HashMap<String, String>());
      sd.getSerdeInfo().getParameters()
          .put(Constants.SERIALIZATION_FORMAT, "1");
      sd.setSortCols(new ArrayList<Order>());

      tbl.setPartitionKeys(partCols);
      client.createTable(tbl);

      tbl = client.getTable(dbName, tblName);
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      partCols.add(new FieldSchema("p2", Constants.STRING_TYPE_NAME, ""));

      Table tbl = new Table();
      tbl.setDbName(dbName);
      tbl.setTableName(tblName);
      StorageDescriptor sd = new StorageDescriptor();
      tbl.setSd(sd);
      sd.setCols(cols);
      sd.setCompressed(false);
      sd.setNumBuckets(1);
      sd.setParameters(new HashMap<String, String>());
      sd.setBucketCols(new ArrayList<String>());
      sd.setSerdeInfo(new SerDeInfo());
      sd.getSerdeInfo().setName(tbl.getTableName());
      sd.getSerdeInfo().setParameters(new HashMap<String, String>());
      sd.getSerdeInfo().getParameters()
          .put(Constants.SERIALIZATION_FORMAT, "1");
      sd.setSortCols(new ArrayList<Order>());

      tbl.setPartitionKeys(partCols);
      client.createTable(tbl);

      tbl = client.getTable(dbName, tblName);
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    msc.createType(typ1);

    Table tbl = new Table();
    tbl.setDbName(dbName);
    tbl.setTableName(tblName);
    StorageDescriptor sd = new StorageDescriptor();
    tbl.setSd(sd);
    sd.setCols(typ1.getFields());

    sd.setSerdeInfo(new SerDeInfo());
    return tbl;
  }
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