org.apache.hadoop.hive.ql.metadata.formatting
Class JsonMetaDataFormatter

java.lang.Object
  org.apache.hadoop.hive.ql.metadata.formatting.JsonMetaDataFormatter

All Implemented Interfaces:

MetaDataFormatter

public class JsonMetaDataFormatter
extends Object
implements MetaDataFormatter

Format table and index information for machine readability using json.

Constructor Summary

JsonMetaDataFormatter()

Method Summary

void	describeTable(DataOutputStream out, String colPath, String tableName, Table tbl, Partition part, List<FieldSchema> cols, boolean isFormatted, boolean isExt, boolean isPretty, boolean isOutputPadded) Describe table.
void	error(OutputStream out, String msg, int errorCode, String sqlState) Write an error message.
void	error(OutputStream out, String errorMessage, int errorCode, String sqlState, String errorDetail)
void	showDatabaseDescription(DataOutputStream out, String database, String comment, String location, String ownerName, String ownerType, Map<String,String> params) Show the description of a database
void	showDatabases(DataOutputStream out, List<String> databases) Show a list of databases
void	showTablePartitons(DataOutputStream out, List<String> parts) Show the table partitions.
void	showTables(DataOutputStream out, Set<String> tables) Show a list of tables.
void	showTableStatus(DataOutputStream out, Hive db, HiveConf conf, List<Table> tbls, Map<String,String> part, Partition par) Show the table status.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

JsonMetaDataFormatter

public JsonMetaDataFormatter()

Method Detail

error

public void error(OutputStream out,
                  String msg,
                  int errorCode,
                  String sqlState)
           throws HiveException

Write an error message.

Specified by:

error in interface MetaDataFormatter

sqlState - if null, will be ignored

Throws:

HiveException

error

public void error(OutputStream out,
                  String errorMessage,
                  int errorCode,
                  String sqlState,
                  String errorDetail)
           throws HiveException

Specified by:

error in interface MetaDataFormatter

sqlState - if null, will be skipped in output

errorDetail - usually string version of some Exception, if null, will be ignored

Throws:

HiveException

showTables

public void showTables(DataOutputStream out,
                       Set<String> tables)
                throws HiveException

Show a list of tables.

Specified by:

showTables in interface MetaDataFormatter

Throws:

HiveException

describeTable

public void describeTable(DataOutputStream out,
                          String colPath,
                          String tableName,
                          Table tbl,
                          Partition part,
                          List<FieldSchema> cols,
                          boolean isFormatted,
                          boolean isExt,
                          boolean isPretty,
                          boolean isOutputPadded)
                   throws HiveException

Describe table.

Specified by:

describeTable in interface MetaDataFormatter

isFormatted - - describe with formatted keyword

isOutputPadded - - if true, add spacing and indentation

Throws:

HiveException

showTableStatus

public void showTableStatus(DataOutputStream out,
                            Hive db,
                            HiveConf conf,
                            List<Table> tbls,
                            Map<String,String> part,
                            Partition par)
                     throws HiveException

Description copied from interface: MetaDataFormatter

Show the table status.

Specified by:

showTableStatus in interface MetaDataFormatter

Throws:

HiveException

showTablePartitons

public void showTablePartitons(DataOutputStream out,
                               List<String> parts)
                        throws HiveException

Show the table partitions.

Specified by:

showTablePartitons in interface MetaDataFormatter

Throws:

HiveException

showDatabases

public void showDatabases(DataOutputStream out,
                          List<String> databases)
                   throws HiveException

Show a list of databases

Specified by:

showDatabases in interface MetaDataFormatter

Throws:

HiveException

showDatabaseDescription

public void showDatabaseDescription(DataOutputStream out,
                                    String database,
                                    String comment,
                                    String location,
                                    String ownerName,
                                    String ownerType,
                                    Map<String,String> params)
                             throws HiveException

Show the description of a database

Specified by:

showDatabaseDescription in interface MetaDataFormatter

Throws:

HiveException