Package org.apache.hadoop.hive.ql.parse

Examples of org.apache.hadoop.hive.ql.parse.ASTNode

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        SessionState.get().getHiveHistory().startQuery(command, conf.getVar(HiveConf.ConfVars.HIVEQUERYID) );

      resStream = null;

      pd = new ParseDriver();
      ASTNode tree = pd.parse(command);

      while ((tree.getToken() == null) && (tree.getChildCount() > 0)) {
        tree = (ASTNode) tree.getChild(0);
      }

      sem = SemanticAnalyzerFactory.get(conf, tree);

      // Do semantic analysis and plan generation
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    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) {
          throw new SemanticException(e);
        }
        break;

      case HiveParser.TOK_TABLEPARTCOLS:
        List<FieldSchema> partCols = BaseSemanticAnalyzer
          .getColumns((ASTNode) child.getChild(0), false);
        for (FieldSchema fs : partCols) {
          if (!fs.getType().equalsIgnoreCase("string")) {
            throw new SemanticException(
              "Operation not supported. HCatalog only " +
                "supports partition columns of type string. "
                + "For column: "
                + fs.getName()
                + " Found type: " + fs.getType());
          }
        }
        break;

      case HiveParser.TOK_STORAGEHANDLER:
        String storageHandler = BaseSemanticAnalyzer
          .unescapeSQLString(child.getChild(0).getText());
        if (org.apache.commons.lang.StringUtils
          .isNotEmpty(storageHandler)) {
          return ast;
        }

        break;

      case HiveParser.TOK_TABLEFILEFORMAT:
        if (child.getChildCount() < 2) {
          throw new SemanticException(
            "Incomplete specification of File Format. " +
              "You must provide InputFormat, OutputFormat.");
        }
        inputFormat = BaseSemanticAnalyzer.unescapeSQLString(child
          .getChild(0).getText());
        outputFormat = BaseSemanticAnalyzer.unescapeSQLString(child
          .getChild(1).getText());
        break;

      case HiveParser.TOK_TBLRCFILE:
        inputFormat = RCFileInputFormat.class.getName();
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    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) {
          throw new SemanticException(e);
        }
        break;

      case HiveParser.TOK_TABLEPARTCOLS:
        List<FieldSchema> partCols = BaseSemanticAnalyzer
          .getColumns((ASTNode) child.getChild(0), false);
        for (FieldSchema fs : partCols) {
          if (!fs.getType().equalsIgnoreCase("string")) {
            throw new SemanticException(
              "Operation not supported. HCatalog only " +
                "supports partition columns of type string. "
                + "For column: "
                + fs.getName()
                + " Found type: " + fs.getType());
          }
        }
        break;

      case HiveParser.TOK_STORAGEHANDLER:
        String storageHandler = BaseSemanticAnalyzer
          .unescapeSQLString(child.getChild(0).getText());
        if (org.apache.commons.lang.StringUtils
          .isNotEmpty(storageHandler)) {
          return ast;
        }

        break;

      case HiveParser.TOK_TABLEFILEFORMAT:
        if (child.getChildCount() < 2) {
          throw new SemanticException(
            "Incomplete specification of File Format. " +
              "You must provide InputFormat, OutputFormat.");
        }
        inputFormat = BaseSemanticAnalyzer.unescapeSQLString(child
          .getChild(0).getText());
        outputFormat = BaseSemanticAnalyzer.unescapeSQLString(child
          .getChild(1).getText());
        break;

      case HiveParser.TOK_TBLRCFILE:
        inputFormat = RCFileInputFormat.class.getName();
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      ctx.setCmd(command);
      ctx.setHDFSCleanup(true);

      perfLogger.PerfLogBegin(LOG, PerfLogger.PARSE);
      ParseDriver pd = new ParseDriver();
      ASTNode tree = pd.parse(command, ctx);
      tree = ParseUtils.findRootNonNullToken(tree);
      perfLogger.PerfLogEnd(LOG, PerfLogger.PARSE);

      perfLogger.PerfLogBegin(LOG, PerfLogger.ANALYZE);
      BaseSemanticAnalyzer sem = SemanticAnalyzerFactory.get(conf, tree);
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    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_QUERY: // CTAS
        throw new SemanticException("Operation not supported. Create db as Select is not a valid operation.");

      case HiveParser.TOK_IFNOTEXISTS:
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    String inputFormat = null, outputFormat = null;
    tableName = 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_QUERY: // CTAS
        throw new SemanticException("Operation not supported. Create table as Select is not a valid operation.");

      case HiveParser.TOK_TABLEBUCKETS:
        throw new SemanticException("Operation not supported. HCatalog doesn't allow Clustered By in create table.");

      case HiveParser.TOK_TBLSEQUENCEFILE:
        throw new SemanticException("Operation not supported. HCatalog doesn't support Sequence File by default yet. " +
        "You may specify it through INPUT/OUTPUT storage drivers.");

      case HiveParser.TOK_TBLTEXTFILE:
        throw new SemanticException("Operation not supported. HCatalog doesn't support Text File by default yet. " +
        "You may specify it through INPUT/OUTPUT storage drivers.");

      case HiveParser.TOK_LIKETABLE:

        String likeTableName;
        if (child.getChildCount() > 0 && (likeTableName = BaseSemanticAnalyzer.getUnescapedName((ASTNode)ast.getChild(0))) != null) {

          throw new SemanticException("Operation not supported. CREATE TABLE LIKE is not supported.");
//          Map<String, String> tblProps;
//          try {
//            tblProps = db.getTable(MetaStoreUtils.DEFAULT_DATABASE_NAME, likeTableName).getParameters();
//          } catch (HiveException he) {
//            throw new SemanticException(he);
//          }
//          if(!(tblProps.containsKey(InitializeInput.HOWL_ISD_CLASS) && tblProps.containsKey(InitializeInput.HOWL_OSD_CLASS))){
//            throw new SemanticException("Operation not supported. Table "+likeTableName+" should have been created through HCat. Seems like its not.");
//          }
//          return ast;
        }
        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) {
          throw new SemanticException(e);
        }
        break;

      case HiveParser.TOK_TABLEPARTCOLS:
        List<FieldSchema> partCols = BaseSemanticAnalyzer.getColumns((ASTNode) child.getChild(0), false);
        for(FieldSchema fs : partCols){
          if(!fs.getType().equalsIgnoreCase("string")){
            throw new SemanticException("Operation not supported. HCatalog only supports partition columns of type string. " +
                "For column: "+fs.getName()+" Found type: "+fs.getType());
          }
        }
        break;

      case HiveParser.TOK_TABLEFILEFORMAT:
        if(child.getChildCount() < 4) {
          throw new SemanticException("Incomplete specification of File Format. You must provide InputFormat, OutputFormat, InputDriver, OutputDriver.");
        }
        inputFormat      = BaseSemanticAnalyzer.unescapeSQLString(child.getChild(0).getText());
        outputFormat     = BaseSemanticAnalyzer.unescapeSQLString(child.getChild(1).getText());
        inStorageDriver  = BaseSemanticAnalyzer.unescapeSQLString(child.getChild(2).getText());
        outStorageDriver = BaseSemanticAnalyzer.unescapeSQLString(child.getChild(3).getText());
        break;

      case HiveParser.TOK_TBLRCFILE:
        inputFormat      = RCFileInputFormat.class.getName();
        outputFormat     = RCFileOutputFormat.class.getName();
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  @Override
  public ASTNode preAnalyze(HiveSemanticAnalyzerHookContext context, ASTNode ast) throws SemanticException {

    String inputFormat = null, outputFormat = null;
    tableName = BaseSemanticAnalyzer.unescapeIdentifier(((ASTNode)ast.getChild(0)).getChild(0).getText());
    ASTNode child =  (ASTNode)((ASTNode)ast.getChild(1)).getChild(0);

    switch (child.getToken().getType()) {
    case HiveParser.TOK_TABLEFILEFORMAT:
      inputFormat  = BaseSemanticAnalyzer.unescapeSQLString(((ASTNode) child.getChild(0)).getToken().getText());
      outputFormat = BaseSemanticAnalyzer.unescapeSQLString(((ASTNode) child.getChild(1)).getToken().getText());
      inDriver     = BaseSemanticAnalyzer.unescapeSQLString(((ASTNode) child.getChild(2)).getToken().getText());
      outDriver    = BaseSemanticAnalyzer.unescapeSQLString(((ASTNode) child.getChild(3)).getToken().getText());
      break;

    case HiveParser.TOK_TBLSEQUENCEFILE:
      throw new SemanticException("Operation not supported. HCatalog doesn't support Sequence File by default yet. " +
      "You may specify it through INPUT/OUTPUT storage drivers.");
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      command = new VariableSubstitution().substitute(conf,command);
      ctx = new Context(conf);
      ctx.setTryCount(getTryCount());

      ParseDriver pd = new ParseDriver();
      ASTNode tree = pd.parse(command, ctx);
      tree = ParseUtils.findRootNonNullToken(tree);

      BaseSemanticAnalyzer sem = SemanticAnalyzerFactory.get(conf, tree);
      List<AbstractSemanticAnalyzerHook> saHooks = getSemanticAnalyzerHooks();
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    try {
      ctx = new Context (conf);

      ParseDriver pd = new ParseDriver();
      ASTNode tree = pd.parse(command);

      while ((tree.getToken() == null) && (tree.getChildCount() > 0)) {
        tree = (ASTNode) tree.getChild(0);
      }

      BaseSemanticAnalyzer sem = SemanticAnalyzerFactory.get(conf, tree);
      // Do semantic analysis and plan generation
      sem.analyze(tree, ctx);
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    parseDriver = new ParseDriver();
  }

  @Test
  public void testAddPartition() throws Exception {
    ASTNode ast = parse("alter table parted add partition (day='Monday')");
    LOG.info("AST: " + ast.toStringTree());
    AccessURI partitionLocation = HiveAuthzBindingHook.extractPartition(ast);
    Assert.assertNull("Query without part location should not return location",
        partitionLocation);
  }
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