Examples with ReadEntity org.apache.hadoop.hive.ql.hooks.ReadEntity used on opensource projects

Example 11 with ReadEntity

use of org.apache.hadoop.hive.ql.hooks.ReadEntity in project hive by apache.

the class DDLSemanticAnalyzer method analyzeAlterTableArchive.

private void analyzeAlterTableArchive(String[] qualified, CommonTree ast, boolean isUnArchive) throws SemanticException {
    if (!conf.getBoolVar(HiveConf.ConfVars.HIVEARCHIVEENABLED)) {
        throw new SemanticException(ErrorMsg.ARCHIVE_METHODS_DISABLED.getMsg());
    }
    Table tab = getTable(qualified);
    // partition name to value
    List<Map<String, String>> partSpecs = getPartitionSpecs(tab, ast);
    addTablePartsOutputs(tab, partSpecs, true, WriteEntity.WriteType.DDL_NO_LOCK);
    validateAlterTableType(tab, AlterTableTypes.ARCHIVE);
    inputs.add(new ReadEntity(tab));
    if (partSpecs.size() > 1) {
        throw new SemanticException(isUnArchive ? ErrorMsg.UNARCHIVE_ON_MULI_PARTS.getMsg() : ErrorMsg.ARCHIVE_ON_MULI_PARTS.getMsg());
    }
    if (partSpecs.size() == 0) {
        throw new SemanticException(ErrorMsg.ARCHIVE_ON_TABLE.getMsg());
    }
    Map<String, String> partSpec = partSpecs.get(0);
    try {
        isValidPrefixSpec(tab, partSpec);
    } catch (HiveException e) {
        throw new SemanticException(e.getMessage(), e);
    }
    AlterTableSimpleDesc archiveDesc = new AlterTableSimpleDesc(getDotName(qualified), partSpec, (isUnArchive ? AlterTableTypes.UNARCHIVE : AlterTableTypes.ARCHIVE));
    rootTasks.add(TaskFactory.get(new DDLWork(getInputs(), getOutputs(), archiveDesc)));
}

Example 12 with ReadEntity

use of org.apache.hadoop.hive.ql.hooks.ReadEntity in project hive by apache.

the class DDLSemanticAnalyzer method analyzeShowPartitions.

private void analyzeShowPartitions(ASTNode ast) throws SemanticException {
    ShowPartitionsDesc showPartsDesc;
    String tableName = getUnescapedName((ASTNode) ast.getChild(0));
    List<Map<String, String>> partSpecs = getPartitionSpecs(getTable(tableName), ast);
    // We only can have a single partition spec
    assert (partSpecs.size() <= 1);
    Map<String, String> partSpec = null;
    if (partSpecs.size() > 0) {
        partSpec = partSpecs.get(0);
    }
    validateTable(tableName, null);
    showPartsDesc = new ShowPartitionsDesc(tableName, ctx.getResFile(), partSpec);
    inputs.add(new ReadEntity(getTable(tableName)));
    rootTasks.add(TaskFactory.get(new DDLWork(getInputs(), getOutputs(), showPartsDesc)));
    setFetchTask(createFetchTask(showPartsDesc.getSchema()));
}

Example 13 with ReadEntity

use of org.apache.hadoop.hive.ql.hooks.ReadEntity in project hive by apache.

the class DDLSemanticAnalyzer method analyzeSwitchDatabase.

private void analyzeSwitchDatabase(ASTNode ast) throws SemanticException {
    String dbName = unescapeIdentifier(ast.getChild(0).getText());
    Database database = getDatabase(dbName, true);
    ReadEntity dbReadEntity = new ReadEntity(database);
    dbReadEntity.noLockNeeded();
    inputs.add(dbReadEntity);
    SwitchDatabaseDesc switchDatabaseDesc = new SwitchDatabaseDesc(dbName);
    rootTasks.add(TaskFactory.get(new DDLWork(getInputs(), getOutputs(), switchDatabaseDesc)));
}

Example 14 with ReadEntity

use of org.apache.hadoop.hive.ql.hooks.ReadEntity in project hive by apache.

the class DDLSemanticAnalyzer method analyzeAlterTableRenamePart.

private void analyzeAlterTableRenamePart(ASTNode ast, String tblName, HashMap<String, String> oldPartSpec) throws SemanticException {
    Table tab = getTable(tblName, true);
    validateAlterTableType(tab, AlterTableTypes.RENAMEPARTITION);
    Map<String, String> newPartSpec = getValidatedPartSpec(tab, (ASTNode) ast.getChild(0), conf, false);
    if (newPartSpec == null) {
        throw new SemanticException("RENAME PARTITION Missing Destination" + ast);
    }
    ReadEntity re = new ReadEntity(tab);
    re.noLockNeeded();
    inputs.add(re);
    List<Map<String, String>> partSpecs = new ArrayList<Map<String, String>>();
    partSpecs.add(oldPartSpec);
    partSpecs.add(newPartSpec);
    addTablePartsOutputs(tab, partSpecs, WriteEntity.WriteType.DDL_EXCLUSIVE);
    RenamePartitionDesc renamePartitionDesc = new RenamePartitionDesc(tblName, oldPartSpec, newPartSpec, null);
    rootTasks.add(TaskFactory.get(new DDLWork(getInputs(), getOutputs(), renamePartitionDesc)));
}

Example 15 with ReadEntity

use of org.apache.hadoop.hive.ql.hooks.ReadEntity in project hive by apache.

the class DDLSemanticAnalyzer method analyzeDropTable.

private void analyzeDropTable(ASTNode ast, TableType expectedType) throws SemanticException {
    String tableName = getUnescapedName((ASTNode) ast.getChild(0));
    boolean ifExists = (ast.getFirstChildWithType(HiveParser.TOK_IFEXISTS) != null);
    // we want to signal an error if the table/view doesn't exist and we're
    // configured not to fail silently
    boolean throwException = !ifExists && !HiveConf.getBoolVar(conf, ConfVars.DROPIGNORESNONEXISTENT);
    ReplicationSpec replicationSpec = new ReplicationSpec(ast);
    Table tab = getTable(tableName, throwException);
    if (tab != null) {
        inputs.add(new ReadEntity(tab));
        outputs.add(new WriteEntity(tab, WriteEntity.WriteType.DDL_EXCLUSIVE));
    }
    boolean ifPurge = (ast.getFirstChildWithType(HiveParser.KW_PURGE) != null);
    DropTableDesc dropTblDesc = new DropTableDesc(tableName, expectedType, ifExists, ifPurge, replicationSpec);
    rootTasks.add(TaskFactory.get(new DDLWork(getInputs(), getOutputs(), dropTblDesc)));
}