/*! ******************************************************************************
*
* Pentaho Data Integration
*
* Copyright (C) 2002-2016 by Pentaho : http://www.pentaho.com
*
*******************************************************************************
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************/
package org.pentaho.di.core.database;
import org.pentaho.di.core.Const;
import org.pentaho.di.core.util.Utils;
import org.pentaho.di.core.row.ValueMetaInterface;
/**
* Contains LucidDB specific information through static final members
*
* @author Matt
* @since 24-oct-2008
*/
public class LucidDBDatabaseMeta extends BaseDatabaseMeta implements DatabaseInterface {
@Override
public int[] getAccessTypeList() {
return new int[] { DatabaseMeta.TYPE_ACCESS_NATIVE, DatabaseMeta.TYPE_ACCESS_JNDI };
}
@Override
public int getDefaultDatabasePort() {
if ( getAccessType() == DatabaseMeta.TYPE_ACCESS_NATIVE ) {
return 8034;
}
return -1;
}
@Override
public String getDriverClass() {
return "org.luciddb.jdbc.LucidDbClientDriver";
}
@Override
public String getURL( String hostname, String port, String databaseName ) {
if ( !Utils.isEmpty( port ) && Const.toInt( port, -1 ) > 0 ) {
return "jdbc:luciddb:http://" + hostname + ":" + port;
} else {
return "jdbc:luciddb:http://" + hostname;
}
}
@Override
public String getSQLTableExists( String tablename ) {
return getSQLQueryFields( tablename );
}
@Override
public String getSQLColumnExists( String columnname, String tablename ) {
return getSQLQueryColumnFields( columnname, tablename );
}
public String getSQLQueryColumnFields( String columnname, String tableName ) {
return "SELECT " + columnname + " FROM " + tableName;
}
/**
* Generates the SQL statement to add a column to the specified table
*
* @param tablename
* The table to add
* @param v
* The column defined as a value
* @param tk
* the name of the technical key field
* @param use_autoinc
* whether or not this field uses auto increment
* @param pk
* the name of the primary key field
* @param semicolon
* whether or not to add a semi-colon behind the statement.
* @return the SQL statement to add a column to the specified table
*/
@Override
public String getAddColumnStatement( String tablename, ValueMetaInterface v, String tk, boolean use_autoinc,
String pk, boolean semicolon ) {
// NOTE jvs 13-Dec-2008: This will be possible starting with LucidDB
// v0.8.1, so might as well enable it now.
return "ALTER TABLE " + tablename + " ADD " + getFieldDefinition( v, tk, pk, use_autoinc, true, false );
}
/**
* Generates the SQL statement to modify a column in the specified table
*
* @param tablename
* The table to add
* @param v
* The column defined as a value
* @param tk
* the name of the technical key field
* @param use_autoinc
* whether or not this field uses auto increment
* @param pk
* the name of the primary key field
* @param semicolon
* whether or not to add a semi-colon behind the statement.
* @return the SQL statement to modify a column in the specified table
*/
@Override
public String getModifyColumnStatement( String tablename, ValueMetaInterface v, String tk, boolean use_autoinc,
String pk, boolean semicolon ) {
// This is not possible in LucidDB...
return null;
}
/**
* Generates the SQL statement to drop a column from the specified table
*
* @param tablename
* The table to add
* @param v
* The column defined as a value
* @param tk
* the name of the technical key field
* @param use_autoinc
* whether or not this field uses auto increment
* @param pk
* the name of the primary key field
* @param semicolon
* whether or not to add a semi-colon behind the statement.
* @return the SQL statement to drop a column from the specified table
*/
@Override
public String getDropColumnStatement( String tablename, ValueMetaInterface v, String tk, boolean use_autoinc,
String pk, boolean semicolon ) {
// This is not possible in LucidDB...
return null;
}
@Override
public String getFieldDefinition( ValueMetaInterface v, String tk, String pk, boolean use_autoinc,
boolean add_fieldname, boolean add_cr ) {
String retval = "";
String fieldname = v.getName();
int length = v.getLength();
int precision = v.getPrecision();
if ( add_fieldname ) {
retval += fieldname + " ";
}
int type = v.getType();
switch ( type ) {
case ValueMetaInterface.TYPE_TIMESTAMP:
case ValueMetaInterface.TYPE_DATE:
retval += "TIMESTAMP";
break;
case ValueMetaInterface.TYPE_BOOLEAN:
if ( supportsBooleanDataType() ) {
retval += "BOOLEAN";
} else {
retval += "CHAR(1)";
}
break;
case ValueMetaInterface.TYPE_NUMBER:
case ValueMetaInterface.TYPE_INTEGER:
case ValueMetaInterface.TYPE_BIGNUMBER:
if ( fieldname.equalsIgnoreCase( tk ) || // Technical key
fieldname.equalsIgnoreCase( pk ) // Primary key
) {
if ( use_autoinc ) {
retval += "BIGINT GENERATED BY DEFAULT AS IDENTITY NOT NULL PRIMARY KEY";
} else {
retval += "BIGINT PRIMARY KEY";
}
} else {
if ( precision == 0 ) {
if ( length > 18 ) {
retval += "DECIMAL(" + length + ",0)";
} else {
if ( length >= 9 ) {
retval += "BIGINT";
} else {
retval += "INT";
}
}
} else {
if ( precision > 0 ) {
if ( length > 0 ) {
retval += "DECIMAL(" + length + "," + precision + ")";
}
} else {
retval += "DOUBLE";
}
}
}
break;
case ValueMetaInterface.TYPE_STRING:
// Maybe use some default DB String length in case length<=0
if ( length > 0 ) {
retval += "VARCHAR(" + length + ")";
} else {
retval += "VARCHAR(100)";
}
break;
default:
retval += " UNKNOWN";
break;
}
if ( add_cr ) {
retval += Const.CR;
}
return retval;
}
/*
* (non-Javadoc)
*
* @see org.pentaho.di.core.database.DatabaseInterface#getReservedWords()
*/
@Override
public String[] getReservedWords() {
// Copied from : http://pub.eigenbase.org/wiki/FarragoSqlReservedWords
//
return new String[] {
"ABS", "ABSOLUTE", "ACTION", "ADD", "ALL", "ALLOCATE", "ALLOW", "ALTER", "ANALYZE", "AND", "ANY", "ARE",
"ARRAY", "AS", "ASC", "ASENSITIVE", "ASSERTION", "ASYMMETRIC", "AT", "ATOMIC", "AUTHORIZATION", "AVG",
"BEGIN", "BETWEEN", "BIGINT", "BINARY", "BIT", "BIT_LENGTH", "BLOB", "BOOLEAN", "BOTH", "BY", "CALL",
"CALLED", "CARDINALITY", "CASCADE", "CASCADED", "CASE", "CAST", "CATALOG", "CEIL", "CEILING", "CHAR",
"CHARACTER", "CHARACTER_LENGTH", "CHAR_LENGTH", "CHECK", "CHECKPOINT", "CLOB", "CLOSE", "CLUSTERED",
"COALESCE", "COLLATE", "COLLATION", "COLLECT", "COLUMN", "COMMIT", "CONDITION", "CONNECT", "CONNECTION",
"CONSTRAINT", "CONSTRAINTS", "CONTINUE", "CONVERT", "CORR", "CORRESPONDING", "COUNT", "COVAR_POP",
"COVAR_SAMP", "CREATE", "CROSS", "CUBE", "CUME_DIST", "CURRENT", "CURRENT_DATE",
"CURRENT_DEFAULT_TRANSFORM_GROUP", "CURRENT_PATH", "CURRENT_ROLE", "CURRENT_TIME", "CURRENT_TIMESTAMP",
"CURRENT_TRANSFORM_GROUP_FOR_TYPE", "CURRENT_USER", "CURSOR", "CYCLE", "DATE", "DAY", "DEALLOCATE", "DEC",
"DECIMAL", "DECLARE", "DEFAULT", "DEFERRABLE", "DEFERRED", "DELETE", "DENSE_RANK", "DEREF", "DESC",
"DESCRIBE", "DESCRIPTOR", "DETERMINISTIC", "DIAGNOSTICS", "DISALLOW", "DISCONNECT", "DISTINCT", "DOMAIN",
"DOUBLE", "DROP", "DYNAMIC", "EACH", "ELEMENT", "ELSE", "END", "END-EXEC", "ESCAPE", "EVERY", "EXCEPT",
"EXCEPTION", "EXEC", "EXECUTE", "EXISTS", "EXP", "EXPLAIN", "EXTERNAL", "EXTRACT", "FALSE", "FETCH",
"FILTER", "FIRST", "FIRST_VALUE", "FLOAT", "FLOOR", "FOR", "FOREIGN", "FOUND", "FREE", "FROM", "FULL",
"FUNCTION", "FUSION", "GET", "GLOBAL", "GO", "GOTO", "GRANT", "GROUP", "GROUPING", "HAVING", "HOLD",
"HOUR", "IDENTITY", "IMMEDIATE", "IMPORT", "IN", "INADD", "INDICATOR", "INITIALLY", "INNER", "INOUT",
"INSENSITIVE", "INSERT", "INT", "INTEGER", "INTERSECT", "INTERSECTION", "INTERVAL", "INTO", "IS",
"ISOLATION", "JOIN", "KEY", "LANGUAGE", "LARGE", "LAST", "LAST_VALUE", "LATERAL", "LEADING", "LEFT",
"LEVEL", "LIKE", "LIMIT", "LN", "LOCAL", "LOCALTIME", "LOCALTIMESTAMP", "LOWER", "MATCH", "MAX", "MEMBER",
"MERGE", "METHOD", "MIN", "MINUTE", "MOD", "MODIFIES", "MODULE", "MONTH", "MULTISET", "NAMES", "NATIONAL",
"NATURAL", "NCHAR", "NCLOB", "NEW", "NEXT", "NO", "NONE", "NORMALIZE", "NOT", "NULL", "NULLIF", "NUMERIC",
"OCTET_LENGTH", "OF", "OLD", "ON", "ONLY", "OPEN", "OPTION", "OR", "ORDER", "OUT", "OUTADD", "OUTER",
"OVER", "OVERLAPS", "OVERLAY", "PAD", "PARAMETER", "PARTIAL", "PARTITION", "PERCENTILE_CONT",
"PERCENTILE_DISC", "PERCENT_RANK", "POSITION", "POWER", "PRECISION", "PREPARE", "PRESERVE", "PRIMARY",
"PRIOR", "PRIVILEGES", "PROCEDURE", "PUBLIC", "RANGE", "RANK", "READ", "READS", "REAL", "RECURSIVE",
"REF", "REFERENCES", "REFERENCING", "REGR_AVGX", "REGR_AVGY", "REGR_COUNT", "REGR_INTERCEPT", "REGR_R2",
"REGR_SLOPE", "REGR_SXX", "REGR_SXY", "RELATIVE", "RELEASE", "RESTRICT", "RESULT", "RETURN", "RETURNS",
"REVOKE", "RIGHT", "ROLLBACK", "ROLLUP", "ROW", "ROW_NUMBER", "ROWS", "SAVEPOINT", "SCHEMA", "SCOPE",
"SCROLL", "SEARCH", "SECOND", "SECTION", "SELECT", "SENSITIVE", "SESSION", "SESSION_USER", "SET",
"SIMILAR", "SIZE", "SMALLINT", "SOME", "SPACE", "SPECIFIC", "SPECIFICTYPE", "SQL", "SQLCODE", "SQLERROR",
"SQLEXCEPTION", "SQLSTATE", "SQLWARNING", "SQRT", "START", "STATIC", "STDDEV_POP", "STDDEV_SAMP",
"SUBMULTISET", "SUBSTRING", "SUM", "SYMMETRIC", "SYSTEM", "SYSTEM_USER", "TABLE", "TABLESAMPLE",
"TEMPORARY", "THEN", "TIME", "TIMESTAMP", "TIMEZONE_HOUR", "TIMEZONE_MINUTE", "TINYINT", "TO", "TRAILING",
"TRANSACTION", "TRANSLATE", "TRANSLATION", "TREAT", "TRIGGER", "TRIM", "TRUE", "TRUNCATE", "UESCAPE",
"UNION", "UNIQUE", "UNKNOWN", "UNNEST", "UPDATE", "UPPER", "USAGE", "USER", "USING", "VALUE", "VALUES",
"VARBINARY", "VARCHAR", "VAR_POP", "VAR_SAMP", "VARYING", "VIEW", "WHEN", "WHENEVER", "WHERE",
"WIDTH_BUCKET", "WINDOW", "WITH", "WITHIN", "WITHOUT", "WORK", "WRITE", "YEAR", "ZONE", };
}
@Override
public String[] getUsedLibraries() {
return new String[] { "LucidDbClient.jar" };
}
@Override
public String getExtraOptionsHelpText() {
return "http://pub.eigenbase.org/wiki/LucidDbDocs";
}
@Override
public boolean useSchemaNameForTableList() {
// This prevents the DB explorer from showing unqualified table names,
// which is good, otherwise when it generates SQL to select from them,
// there is no schema qualifier, resulting in an error.
return true;
}
@Override
public boolean requiresCastToVariousForIsNull() {
return true;
}
}