Package org.apache.hadoop.hive.ql.metadata

Examples of org.apache.hadoop.hive.ql.metadata.Hive

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  @Override
  public ASTNode preAnalyze(HiveSemanticAnalyzerHookContext context, ASTNode ast)
    throws SemanticException {

    Hive db;
    try {
      db = context.getHive();
    } catch (HiveException e) {
      throw new SemanticException("Couldn't get Hive DB instance in semantic analysis phase.", e);
    }

    // Analyze and create tbl properties object
    int numCh = ast.getChildCount();

    databaseName = BaseSemanticAnalyzer.getUnescapedName((ASTNode) ast.getChild(0));

    for (int num = 1; num < numCh; num++) {
      ASTNode child = (ASTNode) ast.getChild(num);

      switch (child.getToken().getType()) {

      case HiveParser.TOK_IFNOTEXISTS:
        try {
          List<String> dbs = db.getDatabasesByPattern(databaseName);
          if (dbs != null && dbs.size() > 0) { // db exists
            return ast;
          }
        } catch (HiveException e) {
          throw new SemanticException(e);
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  @Override
  public ASTNode preAnalyze(HiveSemanticAnalyzerHookContext context,
                ASTNode ast) throws SemanticException {

    Hive db;
    try {
      db = context.getHive();
    } catch (HiveException e) {
      throw new SemanticException(
        "Couldn't get Hive DB instance in semantic analysis phase.",
        e);
    }

    // Analyze and create tbl properties object
    int numCh = ast.getChildCount();

    String inputFormat = null, outputFormat = null;
    tableName = BaseSemanticAnalyzer.getUnescapedName((ASTNode) ast
      .getChild(0));
    boolean likeTable = false;

    for (int num = 1; num < numCh; num++) {
      ASTNode child = (ASTNode) ast.getChild(num);

      switch (child.getToken().getType()) {

      case HiveParser.TOK_QUERY: // CTAS
        throw new SemanticException(
          "Operation not supported. Create table as " +
            "Select is not a valid operation.");

      case HiveParser.TOK_TABLEBUCKETS:
        break;

      case HiveParser.TOK_TBLSEQUENCEFILE:
        inputFormat = HCatConstants.SEQUENCEFILE_INPUT;
        outputFormat = HCatConstants.SEQUENCEFILE_OUTPUT;
        break;

      case HiveParser.TOK_TBLTEXTFILE:
        inputFormat = org.apache.hadoop.mapred.TextInputFormat.class.getName();
        outputFormat = org.apache.hadoop.hive.ql.io.IgnoreKeyTextOutputFormat.class.getName();

        break;

      case HiveParser.TOK_LIKETABLE:
        likeTable = true;
        break;

      case HiveParser.TOK_IFNOTEXISTS:
        try {
          List<String> tables = db.getTablesByPattern(tableName);
          if (tables != null && tables.size() > 0) { // table
            // exists
            return ast;
          }
        } catch (HiveException e) {
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    if (!HiveConf.getBoolVar(context.getConf(),
      HiveConf.ConfVars.HIVE_AUTHORIZATION_ENABLED)) {
      return;
    }

    Hive hive;
    try {
      hive = context.getHive();

      for (Task<? extends Serializable> task : rootTasks) {
        if (task.getWork() instanceof DDLWork) {
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  private List<String> getTableData(String table, String database) throws Exception {
    HiveConf conf = new HiveConf();
    conf.addResource("hive-site.xml");
    ArrayList<String> results = new ArrayList<String>();
    ArrayList<String> temp = new ArrayList<String>();
    Hive hive = Hive.get(conf);
    org.apache.hadoop.hive.ql.metadata.Table tbl = hive.getTable(database, table);
    FetchWork work;
    if (!tbl.getPartCols().isEmpty()) {
      List<Partition> partitions = hive.getPartitions(tbl);
      List<PartitionDesc> partDesc = new ArrayList<PartitionDesc>();
      List<Path> partLocs = new ArrayList<Path>();
      for (Partition part : partitions) {
        partLocs.add(part.getDataLocation());
        partDesc.add(Utilities.getPartitionDesc(part));
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    }

    FsPermission perms = FsPermission.valueOf(permsStr);

    if (!tblName.isEmpty()) {
      Hive db = null;
      try {
        db = Hive.get();
        Table tbl = db.getTable(tblName);
        Path tblPath = tbl.getPath();

        FileSystem fs = tblPath.getFileSystem(conf);
        if (null != perms) {
          fs.setPermission(tblPath, perms);
        }
        if (null != grp) {
          fs.setOwner(tblPath, null, grp);
        }
        return 0;

      } catch (Exception e) {
        ss.err.println(String.format("Failed to set permissions/groups on TABLE: <%s> %s", tblName, e.getMessage()));
        try {  // We need to drop the table.
          if (null != db) {
            db.dropTable(tblName);
          }
        } catch (HiveException he) {
          ss.err.println(String.format("Failed to drop TABLE <%s> after failing to set permissions/groups on it. %s", tblName, e.getMessage()));
        }
        return 1;
      }
    } else {
      // looks like a db operation
      if (dbName.isEmpty() || dbName.equals(MetaStoreUtils.DEFAULT_DATABASE_NAME)) {
        // We dont set perms or groups for default dir.
        return 0;
      } else {
        try {
          Hive db = Hive.get();
          Path dbPath = new Warehouse(conf).getDatabasePath(db.getDatabase(dbName));
          FileSystem fs = dbPath.getFileSystem(conf);
          if (perms != null) {
            fs.setPermission(dbPath, perms);
          }
          if (null != grp) {
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  @Override
  public ASTNode preAnalyze(HiveSemanticAnalyzerHookContext context, ASTNode ast)
    throws SemanticException {

    Hive db;
    try {
      db = context.getHive();
    } catch (HiveException e) {
      throw new SemanticException("Couldn't get Hive DB instance in semantic analysis phase.", e);
    }

    // Analyze and create tbl properties object
    int numCh = ast.getChildCount();

    databaseName = BaseSemanticAnalyzer.getUnescapedName((ASTNode) ast.getChild(0));

    for (int num = 1; num < numCh; num++) {
      ASTNode child = (ASTNode) ast.getChild(num);

      switch (child.getToken().getType()) {

      case HiveParser.TOK_IFNOTEXISTS:
        try {
          List<String> dbs = db.getDatabasesByPattern(databaseName);
          if (dbs != null && dbs.size() > 0) { // db exists
            return ast;
          }
        } catch (HiveException e) {
          throw new SemanticException(e);
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  @Override
  public ASTNode preAnalyze(HiveSemanticAnalyzerHookContext context,
                ASTNode ast) throws SemanticException {

    Hive db;
    try {
      db = context.getHive();
    } catch (HiveException e) {
      throw new SemanticException(
        "Couldn't get Hive DB instance in semantic analysis phase.",
        e);
    }

    // Analyze and create tbl properties object
    int numCh = ast.getChildCount();

    String inputFormat = null, outputFormat = null;
    tableName = BaseSemanticAnalyzer.getUnescapedName((ASTNode) ast
      .getChild(0));
    boolean likeTable = false;

    for (int num = 1; num < numCh; num++) {
      ASTNode child = (ASTNode) ast.getChild(num);

      switch (child.getToken().getType()) {

      case HiveParser.TOK_QUERY: // CTAS
        throw new SemanticException(
          "Operation not supported. Create table as " +
            "Select is not a valid operation.");

      case HiveParser.TOK_TABLEBUCKETS:
        break;

      case HiveParser.TOK_TBLSEQUENCEFILE:
        inputFormat = HCatConstants.SEQUENCEFILE_INPUT;
        outputFormat = HCatConstants.SEQUENCEFILE_OUTPUT;
        break;

      case HiveParser.TOK_TBLTEXTFILE:
        inputFormat = org.apache.hadoop.mapred.TextInputFormat.class.getName();
        outputFormat = org.apache.hadoop.hive.ql.io.IgnoreKeyTextOutputFormat.class.getName();

        break;

      case HiveParser.TOK_LIKETABLE:
        likeTable = true;
        break;

      case HiveParser.TOK_IFNOTEXISTS:
        try {
          List<String> tables = db.getTablesByPattern(tableName);
          if (tables != null && tables.size() > 0) { // table
            // exists
            return ast;
          }
        } catch (HiveException e) {
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    }

    FsPermission perms = FsPermission.valueOf(permsStr);

    if (!tblName.isEmpty()) {
      Hive db = null;
      try {
        db = Hive.get();
        Table tbl = db.getTable(tblName);
        Path tblPath = tbl.getPath();

        FileSystem fs = tblPath.getFileSystem(conf);
        if (null != perms) {
          fs.setPermission(tblPath, perms);
        }
        if (null != grp) {
          fs.setOwner(tblPath, null, grp);
        }
        return 0;

      } catch (Exception e) {
        ss.err.println(String.format("Failed to set permissions/groups on TABLE: <%s> %s", tblName, e.getMessage()));
        try {  // We need to drop the table.
          if (null != db) {
            db.dropTable(tblName);
          }
        } catch (HiveException he) {
          ss.err.println(String.format("Failed to drop TABLE <%s> after failing to set permissions/groups on it. %s", tblName, e.getMessage()));
        }
        return 1;
      }
    } else {
      // looks like a db operation
      if (dbName.isEmpty() || dbName.equals(MetaStoreUtils.DEFAULT_DATABASE_NAME)) {
        // We dont set perms or groups for default dir.
        return 0;
      } else {
        try {
          Hive db = Hive.get();
          Path dbPath = new Warehouse(conf).getDatabasePath(db.getDatabase(dbName));
          FileSystem fs = dbPath.getFileSystem(conf);
          if (perms != null) {
            fs.setPermission(dbPath, perms);
          }
          if (null != grp) {
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   * @throws Exception if any error occurs
   */
  private List<String> getTableData(String table, String database) throws Exception {
    ArrayList<String> results = new ArrayList<String>();
    ArrayList<String> temp = new ArrayList<String>();
    Hive hive = Hive.get(hiveConf);
    org.apache.hadoop.hive.ql.metadata.Table tbl = hive.getTable(database, table);
    FetchWork work;
    if (tbl.getPartCols().isEmpty()) {
      work = new FetchWork(tbl.getDataLocation(), Utilities.getTableDesc(tbl));
    } else {
      List<Partition> partitions = hive.getPartitions(tbl);
      List<PartitionDesc> partDesc = new ArrayList<PartitionDesc>();
      List<Path> partLocs = new ArrayList<Path>();
      for (Partition part : partitions) {
        partLocs.add(part.getDataLocation());
        partDesc.add(Utilities.getPartitionDesc(part));
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  @Override
  protected int execute(DriverContext driverContext) {

    try {
      Hive db = Hive.get(conf);
      IndexMetadataChangeWork work = this.getWork();
      String tblName = work.getIndexTbl();
      Table tbl = db.getTable(work.getDbName(), tblName);
      if (tbl == null ) {
        console.printError("Index table can not be null.");
        return 1;
      }

      if (!tbl.getTableType().equals(TableType.INDEX_TABLE)) {
        console.printError("Table " + tbl.getTableName() + " not specified.");
        return 1;
      }

      if (tbl.isPartitioned() && work.getPartSpec() == null) {
        console.printError("Index table is partitioned, but no partition specified.");
        return 1;
      }

      if (work.getPartSpec() != null) {
        Partition part = db.getPartition(tbl, work.getPartSpec(), false);
        if (part == null) {
          console.printError("Partition " +
              Warehouse.makePartName(work.getPartSpec(), false).toString()
              + " does not exist.");
          return 1;
        }

        Path path = part.getDataLocation();
        FileSystem fs = path.getFileSystem(conf);
        FileStatus fstat = fs.getFileStatus(path);

        part.getParameters().put(HiveIndex.INDEX_TABLE_CREATETIME, Long.toString(fstat.getModificationTime()));
        db.alterPartition(tbl.getTableName(), part);
      } else {
        Path url = new Path(tbl.getPath().toString());
        FileSystem fs = url.getFileSystem(conf);
        FileStatus fstat = fs.getFileStatus(url);
        tbl.getParameters().put(HiveIndex.INDEX_TABLE_CREATETIME, Long.toString(fstat.getModificationTime()));
        db.alterTable(tbl.getTableName(), tbl);
      }
    } catch (Exception e) {
      e.printStackTrace();
      console.printError("Error changing index table/partition metadata "
          + e.getMessage());
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