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HSQLDB - Lightweight 100% Java SQL Database Engine
/* Copyright (c) 2001-2019, The HSQL Development Group
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of the HSQL Development Group nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL HSQL DEVELOPMENT GROUP, HSQLDB.ORG,
* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.hsqldb;
import org.hsqldb.HsqlNameManager.HsqlName;
import org.hsqldb.error.Error;
import org.hsqldb.error.ErrorCode;
import org.hsqldb.lib.HsqlArrayList;
import org.hsqldb.lib.HsqlList;
import org.hsqldb.lib.OrderedHashSet;
import org.hsqldb.map.ValuePool;
import org.hsqldb.persist.HsqlDatabaseProperties;
import org.hsqldb.persist.RowInsertInterface;
import org.hsqldb.result.Result;
import org.hsqldb.result.ResultProperties;
import org.hsqldb.rights.User;
import org.hsqldb.types.Charset;
import org.hsqldb.types.DateTimeType;
import org.hsqldb.types.TimestampData;
import org.hsqldb.types.Type;
import org.hsqldb.types.Types;
/**
* Parser for session and management statements
*
* @author Fred Toussi (fredt@users dot sourceforge.net)
* @version 2.5.0
* @since 1.9.0
*/
public class ParserCommand extends ParserDDL {
ParserCommand(Session session, Scanner t) {
super(session, t);
}
Statement compileStatement(int props) {
Statement cs = compilePart(props);
if (token.tokenType == Tokens.X_ENDPARSE) {
if (cs.getSchemaName() == null) {
cs.setSchemaHsqlName(session.getCurrentSchemaHsqlName());
}
return cs;
}
throw unexpectedToken();
}
HsqlArrayList compileStatements(String sql, Result cmd) {
HsqlArrayList list = new HsqlArrayList();
Statement cs = null;
reset(session, sql);
while (true) {
if (token.tokenType == Tokens.X_ENDPARSE) {
break;
}
try {
lastError = null;
cs = compilePart(cmd.getExecuteProperties());
} catch (HsqlException e) {
if (lastError != null && lastError.getLevel() > e.getLevel()) {
throw lastError;
}
throw e;
}
if (!cs.isExplain
&& cs.getParametersMetaData().getColumnCount() > 0) {
throw Error.error(ErrorCode.X_42575);
}
cs.setCompileTimestamp(
database.txManager.getGlobalChangeTimestamp());
list.add(cs);
}
if (list.size() > 1) {
if (database.sqlRestrictExec) {
throw Error.error(ErrorCode.X_07502);
}
}
int returnType = cmd.getStatementType();
if (returnType != StatementTypes.RETURN_ANY) {
int group = cs.getGroup();
if (group == StatementTypes.X_SQL_DATA) {
if (returnType == StatementTypes.RETURN_COUNT) {
throw Error.error(ErrorCode.X_07503);
}
} else if (returnType == StatementTypes.RETURN_RESULT) {
// allow update count statements with Statement.executeQuery()
// to return an empty result set
if (database.sqlRestrictExec) {
throw Error.error(ErrorCode.X_07504);
}
}
}
return list;
}
private Statement compilePart(int props) {
Statement cs;
compileContext.reset();
setPartPosition(getPosition());
if (token.tokenType == Tokens.X_STARTPARSE) {
read();
}
switch (token.tokenType) {
// DQL
case Tokens.WITH :
case Tokens.OPENBRACKET :
case Tokens.SELECT :
case Tokens.TABLE : {
cs = compileCursorSpecification(RangeGroup.emptyArray, props,
false);
break;
}
case Tokens.VALUES : {
RangeGroup[] ranges =
session.sessionContext.sessionVariableRangeGroups;
compileContext.setOuterRanges(ranges);
cs = compileShortCursorSpecification(props);
break;
}
// DML
case Tokens.INSERT : {
cs = compileInsertStatement(RangeGroup.emptyArray);
break;
}
case Tokens.UPDATE : {
cs = compileUpdateStatement(RangeGroup.emptyArray);
break;
}
case Tokens.MERGE : {
cs = compileMergeStatement(RangeGroup.emptyArray);
break;
}
case Tokens.DELETE : {
cs = compileDeleteStatement(RangeGroup.emptyArray);
break;
}
case Tokens.TRUNCATE : {
cs = compileTruncateStatement();
break;
}
case Tokens.REPLACE : {
cs = compileInsertStatement(RangeGroup.emptyArray);
break;
}
// PROCEDURE
case Tokens.CALL : {
cs = compileCallStatement(
session.sessionContext.sessionVariableRangeGroups, false);
break;
}
// SQL SESSION
case Tokens.SET :
cs = compileSet();
break;
// diagnostic
case Tokens.GET :
cs = compileGetStatement(
session.sessionContext.sessionVariableRangeGroups);
break;
case Tokens.START :
cs = compileStartTransaction();
break;
case Tokens.COMMIT :
cs = compileCommit();
break;
case Tokens.ROLLBACK :
cs = compileRollback();
break;
case Tokens.SAVEPOINT :
cs = compileSavepoint();
break;
case Tokens.RELEASE :
cs = compileReleaseSavepoint();
break;
// DDL
case Tokens.CREATE :
cs = compileCreate();
break;
case Tokens.ALTER :
cs = compileAlter();
break;
case Tokens.DROP :
cs = compileDrop();
break;
case Tokens.GRANT :
case Tokens.REVOKE :
cs = compileGrantOrRevoke();
break;
case Tokens.COMMENT :
cs = compileComment();
break;
// HSQL SESSION
case Tokens.LOCK :
cs = compileLock();
break;
case Tokens.CONNECT :
cs = compileConnect();
break;
case Tokens.DISCONNECT :
cs = compileDisconnect();
break;
// HSQL COMMAND
case Tokens.SCRIPT :
cs = compileScript(false);
break;
case Tokens.SHUTDOWN :
cs = compileShutdown();
break;
case Tokens.BACKUP :
cs = compileBackup();
break;
case Tokens.CHECKPOINT :
cs = compileCheckpoint();
break;
case Tokens.EXPLAIN : {
int position = getPosition();
read();
if (token.tokenType == Tokens.PLAN) {
cs = compileExplainPlan();
} else {
cs = compileExplainReferences();
}
cs.setSQL(getLastPart(position));
break;
}
case Tokens.DECLARE :
cs = compileDeclare();
break;
case Tokens.PERFORM :
cs = compilePerform();
break;
default :
throw unexpectedToken();
}
// SET_SESSION_AUTHORIZATION is translated dynamically at runtime for logging
switch (cs.type) {
// these are set at compile time for logging
case StatementTypes.COMMIT_WORK :
case StatementTypes.ROLLBACK_WORK :
case StatementTypes.SET_USER_PASSWORD :
case StatementTypes.EXPLAIN_PLAN :
break;
default :
cs.setSQL(getLastPart());
}
if (token.tokenType == Tokens.SEMICOLON) {
read();
} else if (token.tokenType == Tokens.X_ENDPARSE) {}
return cs;
}
private Statement compileDeclare() {
Statement cs;
ColumnSchema[] variables;
cs = compileDeclareLocalTableOrNull();
if (cs != null) {
return cs;
}
variables = readLocalVariableDeclarationOrNull();
if (variables != null) {
Object[] args = new Object[]{ variables };
cs = new StatementSession(StatementTypes.DECLARE_VARIABLE, args);
return cs;
}
cs = compileDeclareCursorOrNull(RangeGroup.emptyArray, false);
if (cs == null) {
throw lastError == null ? unexpectedToken()
: lastError;
}
return cs;
}
private Statement compileScript(boolean extended) {
String name = null;
int scope = 0;
int type = 0;
HsqlName tableName = null;
TimestampData timestamp = null;
readThis(Tokens.SCRIPT);
if (extended) {
readThis(Tokens.FOR);
if (readIfThis(Tokens.DATABASE)) {
switch (token.tokenType) {
case Tokens.STRUCTURE :
read();
type = Tokens.STRUCTURE;
break;
case Tokens.VERSIONING :
read();
readThis(Tokens.DATA);
if (readIfThis(Tokens.FROM)) {
readThis(Tokens.TIMESTAMP);
String s = readQuotedString();
timestamp =
(TimestampData) Type.SQL_TIMESTAMP
.convertToType(session, s,
Type.SQL_VARCHAR_DEFAULT);
} else {
timestamp = DateTimeType.epochTimestamp;
}
type = Tokens.VERSIONING;
break;
case Tokens.DATA :
read();
type = Tokens.DATA;
break;
default :
type = Tokens.ALL;
}
readThis(Tokens.TO);
scope = Tokens.DATABASE;
} else if (readIfThis(Tokens.TABLE)) {
Table table = readTableName();
if (table.isView() || table.isTemp()) {
throw Error.error(ErrorCode.X_42501);
}
tableName = table.getName();
readThis(Tokens.DATA);
readThis(Tokens.TO);
scope = Tokens.TABLE;
type = Tokens.DATA;
} else {
throw unexpectedToken();
}
}
if (token.tokenType == Tokens.X_VALUE) {
if (scope == 0) {
scope = Tokens.DATABASE;
type = Tokens.ALL;
}
name = readQuotedString();
} else if (scope == 0) {
scope = Tokens.DATABASE;
type = Tokens.STRUCTURE;
} else {
throw unexpectedTokenRequire(Tokens.T_PATH);
}
HsqlName[] names =
database.schemaManager.getCatalogAndBaseTableNames();
Object[] args = new Object[] {
name, Integer.valueOf(scope), Integer.valueOf(type), tableName,
timestamp
};
return new StatementCommand(StatementTypes.DATABASE_SCRIPT, args,
null, names);
}
private Statement compileConnect() {
String userName;
String password = null;
read();
readThis(Tokens.USER);
checkIsSimpleName();
userName = token.tokenString;
read();
if (!session.isProcessingLog()) {
readThis(Tokens.PASSWORD);
password = readPassword();
}
Expression[] args = new Expression[] {
new ExpressionValue(userName, Type.SQL_VARCHAR),
new ExpressionValue(password, Type.SQL_VARCHAR)
};
Statement cs =
new StatementSession(session, compileContext,
StatementTypes.SET_SESSION_AUTHORIZATION,
args);
return cs;
}
private StatementCommand compileSetDefault() {
read();
switch (token.tokenType) {
case Tokens.INITIAL : {
read();
readThis(Tokens.SCHEMA);
HsqlName schema = database.schemaManager.getSchemaHsqlName(
token.tokenString);
read();
Object[] args = new Object[]{ schema };
return new StatementCommand(
StatementTypes.SET_DATABASE_DEFAULT_INITIAL_SCHEMA, args);
}
case Tokens.RESULT : {
read();
readThis(Tokens.MEMORY);
readThis(Tokens.ROWS);
Integer size = readIntegerObject();
Object[] args = new Object[]{ size };
return new StatementCommand(
StatementTypes.SET_DATABASE_RESULT_MEMORY_ROWS, args);
}
case Tokens.TABLE : {
read();
readThis(Tokens.TYPE);
int type;
switch (token.tokenType) {
case Tokens.MEMORY :
type = TableBase.MEMORY_TABLE;
break;
case Tokens.CACHED :
type = TableBase.CACHED_TABLE;
break;
default :
throw unexpectedToken();
}
read();
Object[] args = new Object[]{ ValuePool.getInt(type) };
return new StatementCommand(
StatementTypes.SET_DATABASE_DEFAULT_TABLE_TYPE, args);
}
case Tokens.ISOLATION : {
read();
readThis(Tokens.LEVEL);
int level;
switch (token.tokenType) {
case Tokens.READ :
read();
readThis(Tokens.COMMITTED);
level = SessionInterface.TX_READ_COMMITTED;
break;
case Tokens.SERIALIZABLE :
read();
level = SessionInterface.TX_SERIALIZABLE;
break;
default :
throw unexpectedToken();
}
Object[] args = new Object[]{ ValuePool.getInt(level) };
return new StatementCommand(
StatementTypes.SET_DATABASE_DEFAULT_ISOLATION_LEVEL, args);
}
default :
throw unexpectedToken();
}
}
private StatementCommand compileSetProperty() {
// command is a no-op from 1.9
read();
String property;
Object value;
checkIsSimpleName();
checkIsDelimitedIdentifier();
property = token.tokenString;
read();
if (token.tokenType == Tokens.TRUE) {
value = Boolean.TRUE;
} else if (token.tokenType == Tokens.FALSE) {
value = Boolean.FALSE;
} else {
checkIsValue();
value = token.tokenValue;
}
read();
Object[] args = new Object[] {
property, value
};
return new StatementCommand(StatementTypes.SET_DATABASE_PROPERTY,
args);
}
private Statement compileSet() {
read();
switch (token.tokenType) {
case Tokens.CATALOG : {
read();
Expression e = XreadValueSpecificationOrNull();
if (e == null) {
HsqlName name = readSchemaName();
Object[] args = new Object[]{ name };
return new StatementSession(StatementTypes.SET_CATALOG,
args);
}
if (!e.getDataType().isCharacterType()) {
throw Error.error(ErrorCode.X_0P000);
}
if (e.getType() != OpTypes.VALUE
&& (e.getType() != OpTypes.SQL_FUNCTION
|| !((FunctionSQL) e).isValueFunction())) {
throw Error.error(ErrorCode.X_0P000);
}
Expression[] args = new Expression[]{ e };
return new StatementSession(session, compileContext,
StatementTypes.SET_CATALOG, args);
}
case Tokens.SCHEMA : {
read();
Expression e = XreadValueSpecificationOrNull();
if (e == null) {
HsqlName name = readSchemaName();
Object[] args = new Object[]{ name };
return new StatementSession(StatementTypes.SET_SCHEMA,
args);
}
if (e.isUnresolvedParam()) {
e.setDataType(session, Type.SQL_VARCHAR_DEFAULT);
}
if (!e.getDataType().isCharacterType()) {
throw Error.error(ErrorCode.X_0P000);
}
switch (e.getType()) {
case OpTypes.PARAMETER :
case OpTypes.DYNAMIC_PARAM :
case OpTypes.VALUE :
break;
case OpTypes.SQL_FUNCTION :
if (((FunctionSQL) e).isValueFunction()) {
break;
}
throw Error.error(ErrorCode.X_0P000);
default :
throw Error.error(ErrorCode.X_0P000);
}
Expression[] args = new Expression[]{ e };
return new StatementSession(session, compileContext,
StatementTypes.SET_SCHEMA, args);
}
case Tokens.NO : {
read();
readThis(Tokens.COLLATION);
HsqlArrayList charsets = null;
if (readIfThis(Tokens.FOR)) {
charsets = new HsqlArrayList();
while (true) {
SchemaObject charset =
readSchemaObjectName(SchemaObject.CHARSET);
charsets.add(charset);
if (token.tokenType == Tokens.COMMA) {
read();
continue;
}
break;
}
}
Object[] args = new Object[] {
null, Boolean.FALSE, charsets
};
return new StatementSession(StatementTypes.SET_COLLATION,
args);
}
case Tokens.COLLATION : {
read();
Expression e = XreadValueSpecificationOrNull();
if (e == null || !e.getDataType().isCharacterType()) {
throw Error.error(ErrorCode.X_2H000);
}
HsqlArrayList charsets = null;
if (readIfThis(Tokens.FOR)) {
charsets = new HsqlArrayList();
while (true) {
SchemaObject charset =
readSchemaObjectName(SchemaObject.CHARSET);
charsets.add(charset);
if (token.tokenType == Tokens.COMMA) {
read();
continue;
}
break;
}
}
Object[] args = new Object[] {
e, Boolean.TRUE, charsets
};
return new StatementSession(StatementTypes.SET_COLLATION,
args);
}
case Tokens.TIME : {
read();
return compileSetTimeZone();
}
case Tokens.ROLE : {
read();
return compileSetRole();
}
case Tokens.SESSION : {
read();
return compileSessionSettings();
}
case Tokens.TRANSACTION : {
read();
Object[] args = processTransactionCharacteristics();
if (args[0] == null && args[1] == null) {
throw unexpectedToken();
}
return new StatementSession(StatementTypes.SET_TRANSACTION,
args);
}
case Tokens.AUTOCOMMIT : {
read();
Boolean mode = processTrueOrFalseObject();
Object[] args = new Object[]{ mode };
return new StatementSession(
StatementTypes.SET_SESSION_AUTOCOMMIT, args);
}
// deprecated
case Tokens.READONLY : {
read();
Boolean readonly = processTrueOrFalseObject();
Object[] args = new Object[]{ readonly };
return new StatementSession(
StatementTypes.SET_SESSION_CHARACTERISTICS, args);
}
case Tokens.IGNORECASE : {
read();
Boolean mode = processTrueOrFalseObject();
Object[] args = new Object[]{ mode };
return new StatementSession(
StatementTypes.SET_SESSION_SQL_IGNORECASE, args);
}
case Tokens.MAXROWS : {
read();
Integer size = readIntegerObject();
Object[] args = new Object[]{ size };
return new StatementSession(
StatementTypes.SET_SESSION_RESULT_MAX_ROWS, args);
}
// for backward compatibility
case Tokens.DEFAULT : {
read();
readThis(Tokens.TABLE);
readThis(Tokens.TYPE);
int type;
switch (token.tokenType) {
case Tokens.MEMORY :
type = TableBase.MEMORY_TABLE;
break;
case Tokens.CACHED :
type = TableBase.CACHED_TABLE;
break;
default :
throw unexpectedToken();
}
read();
Object[] args = new Object[]{ ValuePool.getInt(type) };
return new StatementCommand(
StatementTypes.SET_DATABASE_DEFAULT_TABLE_TYPE, args);
}
case Tokens.TABLE : {
return compileSetTable();
}
case Tokens.WRITE_DELAY : {
read();
int delay = 0;
if (token.tokenType == Tokens.TRUE) {
delay = database.getProperties().getDefaultWriteDelay();
read();
} else if (token.tokenType == Tokens.FALSE) {
delay = 0;
read();
} else {
delay = readInteger();
if (delay < 0) {
delay = 0;
}
if (token.tokenType == Tokens.MILLIS) {
read();
} else {
delay *= 1000;
}
}
Object[] args = new Object[]{ Integer.valueOf(delay) };
return new StatementCommand(
StatementTypes.SET_DATABASE_FILES_WRITE_DELAY, args, null,
null);
}
case Tokens.PASSWORD : {
String password;
Boolean isDigest = Boolean.FALSE;
read();
if (readIfThis(Tokens.DIGEST)) {
isDigest = Boolean.TRUE;
}
password = readPassword();
Object[] args = new Object[] {
null, password, isDigest
};
Statement cs =
new StatementCommand(StatementTypes.SET_USER_PASSWORD,
args);
String sql = User.getSetCurrentPasswordDigestSQL(
database.granteeManager, password, isDigest);
cs.setSQL(sql);
return cs;
}
case Tokens.INITIAL : {
read();
readThis(Tokens.SCHEMA);
HsqlName schema;
if (token.tokenType == Tokens.DEFAULT) {
schema = null;
} else {
schema = database.schemaManager.getSchemaHsqlName(
token.tokenString);
}
read();
Object[] args = new Object[] {
null, schema
};
return new StatementCommand(
StatementTypes.SET_USER_INITIAL_SCHEMA, args);
}
case Tokens.FILES : {
return compileSetFilesProperty();
}
case Tokens.DATABASE : {
return compileSetDatabaseProperty();
}
case Tokens.PROPERTY : {
return compileSetProperty();
}
default : {
return compileSetStatement(
session.sessionContext.sessionVariableRangeGroups,
session.sessionContext.sessionVariablesRange);
}
}
}
StatementCommand compileSetTable() {
read();
Table table = readTableName();
Object[] args = new Object[] {
table.getName(), null, null
};
switch (token.tokenType) {
default : {
throw unexpectedToken();
}
case Tokens.SOURCE :
read();
return compileTableSource(table);
case Tokens.READ : {
read();
boolean readonly = false;
if (token.tokenType == Tokens.WRITE) {
read();
} else {
readThis(Tokens.ONLY);
readonly = true;
}
args[1] = Boolean.valueOf(readonly);
return new StatementCommand(StatementTypes.SET_TABLE_READONLY,
args, null,
new HsqlName[]{ table.getName() });
}
// deprecated
case Tokens.READONLY : {
read();
Boolean readonly = processTrueOrFalseObject();
args[1] = readonly;
return new StatementCommand(StatementTypes.SET_TABLE_READONLY,
args, null,
new HsqlName[]{ table.getName() });
}
case Tokens.INDEX : {
String value;
read();
checkIsValue();
value = token.tokenString;
read();
args[1] = value;
args[2] = Integer.valueOf(TableBase.CACHED_TABLE);
return new StatementCommand(StatementTypes.SET_TABLE_INDEX,
args, null,
new HsqlName[]{ table.getName() });
}
case Tokens.TYPE : {
read();
int newType;
switch (token.tokenType) {
case Tokens.MEMORY :
newType = TableBase.MEMORY_TABLE;
break;
case Tokens.CACHED :
newType = TableBase.CACHED_TABLE;
break;
default :
throw unexpectedToken();
}
switch (table.getTableType()) {
case TableBase.MEMORY_TABLE :
case TableBase.CACHED_TABLE :
case TableBase.TEXT_TABLE :
break;
default :
throw unexpectedToken();
}
read();
args[1] = Integer.valueOf(newType);
return new StatementCommand(StatementTypes.SET_TABLE_TYPE,
args, null,
new HsqlName[]{ table.getName() });
}
case Tokens.CLUSTERED : {
read();
readThis(Tokens.ON);
OrderedHashSet set = new OrderedHashSet();
readThis(Tokens.OPENBRACKET);
readSimpleColumnNames(set, table, false);
readThis(Tokens.CLOSEBRACKET);
int[] colIndex = table.getColumnIndexes(set);
args[1] = colIndex;
return new StatementCommand(StatementTypes.SET_TABLE_CLUSTERED,
args, null,
new HsqlName[]{ table.getName() });
}
case Tokens.NEW : {
read();
readThis(Tokens.SPACE);
args = new Object[]{ table.getName() };
HsqlName[] writeLockNames =
database.schemaManager.getCatalogAndBaseTableNames(
table.getName());
return new StatementCommand(
StatementTypes.SET_TABLE_NEW_TABLESPACE, args, null,
writeLockNames);
}
case Tokens.SPACE : {
read();
Integer id = readIntegerObject();
args = new Object[] {
table.getName(), id
};
HsqlName[] writeLockNames =
database.schemaManager.getCatalogAndBaseTableNames(
table.getName());
return new StatementCommand(
StatementTypes.SET_TABLE_SET_TABLESPACE, args, null,
writeLockNames);
}
}
}
StatementCommand compileSetDatabaseProperty() {
read();
String name;
checkDatabaseUpdateAuthorisation();
switch (token.tokenType) {
case Tokens.AUTHENTICATION : {
read();
readThis(Tokens.FUNCTION);
Routine routine = readCreateDatabaseAuthenticationFunction();
Object[] args = new Object[]{ routine };
return new StatementCommand(
StatementTypes.SET_DATABASE_AUTHENTICATION, args, null,
null);
}
case Tokens.COLLATION : {
Boolean padSpace = null;
read();
checkIsSimpleName();
name = token.tokenString;
read();
if (readIfThis(Tokens.NO)) {
readThis(Tokens.PAD);
padSpace = Boolean.FALSE;
} else if (readIfThis(Tokens.PAD)) {
readThis(Tokens.SPACE);
padSpace = Boolean.TRUE;
}
if (padSpace == null) {
if (session.isProcessingScript()
&& database.getProperties().isVersion18()) {
padSpace = Boolean.FALSE;
} else {
padSpace = Boolean.TRUE;
}
}
Object[] args = new Object[] {
name, padSpace
};
return new StatementCommand(
StatementTypes.SET_DATABASE_SQL_COLLATION, args, null,
null);
}
case Tokens.DEFAULT : {
return compileSetDefault();
}
case Tokens.EVENT : {
read();
readThis(Tokens.LOG);
boolean sqlLog = readIfThis(Tokens.SQL);
readThis(Tokens.LEVEL);
Integer value = readIntegerObject();
Object[] args = new Object[] {
value, Boolean.valueOf(sqlLog)
};
return new StatementCommand(
StatementTypes.SET_DATABASE_FILES_EVENT_LOG, args, null,
null);
}
case Tokens.GC : {
read();
Integer size = readIntegerObject();
Object[] args = new Object[]{ size };
return new StatementCommand(StatementTypes.SET_DATABASE_GC,
args, null, null);
}
case Tokens.PASSWORD : {
read();
switch (token.tokenType) {
case Tokens.CHECK : {
read();
readThis(Tokens.FUNCTION);
Routine routine = readCreatePasswordCheckFunction();
Object[] args = new Object[]{ routine };
return new StatementCommand(
StatementTypes.SET_DATABASE_PASSWORD_CHECK, args,
null, null);
}
case Tokens.DIGEST : {
read();
name = readQuotedString();
Object[] args = new Object[]{ name };
return new StatementCommand(
StatementTypes.SET_DATABASE_PASSWORD_DIGEST, args,
null, null);
}
default :
throw unexpectedToken();
}
}
case Tokens.REFERENTIAL : {
read();
readThis(Tokens.INTEGRITY);
boolean mode = processTrueOrFalse();
Object[] args = new Object[]{ Boolean.valueOf(mode) };
return new StatementCommand(
StatementTypes.SET_DATABASE_SQL_REFERENTIAL_INTEGRITY,
args, null, null);
}
case Tokens.SQL : {
read();
int type = StatementTypes.SET_DATABASE_SQL;
Boolean flag = Boolean.TRUE;
Integer value = Integer.valueOf(0);
String property = null;
switch (token.tokenType) {
case Tokens.RESTRICT :
read();
readThis(Tokens.EXEC);
property = HsqlDatabaseProperties.sql_restrict_exec;
flag = processTrueOrFalseObject();
break;
case Tokens.LIVE :
read();
readThis(Tokens.OBJECT);
property = HsqlDatabaseProperties.sql_live_object;
flag = processTrueOrFalseObject();
break;
case Tokens.NAMES :
read();
property = HsqlDatabaseProperties.sql_enforce_names;
flag = processTrueOrFalseObject();
break;
case Tokens.REGULAR :
read();
readThis(Tokens.NAMES);
property = HsqlDatabaseProperties.sql_regular_names;
flag = processTrueOrFalseObject();
break;
case Tokens.REFERENCES :
read();
flag = processTrueOrFalseObject();
property = HsqlDatabaseProperties.sql_enforce_refs;
break;
case Tokens.SIZE :
read();
flag = processTrueOrFalseObject();
property = HsqlDatabaseProperties.sql_enforce_size;
break;
case Tokens.TYPES :
read();
flag = processTrueOrFalseObject();
property = HsqlDatabaseProperties.sql_enforce_types;
break;
case Tokens.TDC :
read();
if (readIfThis(Tokens.DELETE)) {
property = HsqlDatabaseProperties.sql_enforce_tdcd;
} else {
readThis(Tokens.UPDATE);
property = HsqlDatabaseProperties.sql_enforce_tdcu;
}
flag = processTrueOrFalseObject();
break;
case Tokens.TRANSLATE :
read();
readThis(Tokens.TTI);
readThis(Tokens.TYPES);
flag = processTrueOrFalseObject();
property =
HsqlDatabaseProperties.jdbc_translate_tti_types;
break;
case Tokens.CHARACTER :
read();
readThis(Tokens.LITERAL);
flag = processTrueOrFalseObject();
property = HsqlDatabaseProperties.sql_char_literal;
break;
case Tokens.CONCAT_WORD :
read();
readThis(Tokens.NULLS);
flag = processTrueOrFalseObject();
property = HsqlDatabaseProperties.sql_concat_nulls;
break;
case Tokens.NULLS :
read();
if (readIfThis(Tokens.FIRST)) {
property = HsqlDatabaseProperties.sql_nulls_first;
} else {
readThis(Tokens.ORDER);
property = HsqlDatabaseProperties.sql_nulls_order;
}
flag = processTrueOrFalseObject();
break;
case Tokens.UNIQUE :
read();
readThis(Tokens.NULLS);
flag = processTrueOrFalseObject();
property = HsqlDatabaseProperties.sql_unique_nulls;
break;
case Tokens.CONVERT :
read();
readThis(Tokens.TRUNCATE);
flag = processTrueOrFalseObject();
property = HsqlDatabaseProperties.sql_convert_trunc;
break;
case Tokens.AVG :
read();
readThis(Tokens.SCALE);
value = readIntegerObject();
property = HsqlDatabaseProperties.sql_avg_scale;
break;
case Tokens.DOUBLE :
read();
readThis(Tokens.NAN);
flag = processTrueOrFalseObject();
property = HsqlDatabaseProperties.sql_double_nan;
break;
case Tokens.LONGVAR :
read();
readThis(Tokens.IS);
readThis(Tokens.LOB);
flag = processTrueOrFalseObject();
property = HsqlDatabaseProperties.sql_longvar_is_lob;
break;
case Tokens.IGNORECASE :
read();
flag = processTrueOrFalseObject();
property = HsqlDatabaseProperties.sql_ignore_case;
break;
case Tokens.SYNTAX :
read();
if (token.tokenString.equals(Tokens.T_DB2)) {
read();
property = HsqlDatabaseProperties.sql_syntax_db2;
} else if (token.tokenString.equals(Tokens.T_MSS)) {
read();
property = HsqlDatabaseProperties.sql_syntax_mss;
} else if (token.tokenString.equals(Tokens.T_MYS)) {
read();
property = HsqlDatabaseProperties.sql_syntax_mys;
} else if (token.tokenString.equals(Tokens.T_ORA)) {
read();
property = HsqlDatabaseProperties.sql_syntax_ora;
} else if (token.tokenString.equals(Tokens.T_PGS)) {
read();
property = HsqlDatabaseProperties.sql_syntax_pgs;
} else {
throw unexpectedToken();
}
flag = processTrueOrFalseObject();
break;
case Tokens.SYS : {
read();
readThis(Tokens.INDEX);
readThis(Tokens.NAMES);
flag = processTrueOrFalseObject();
property = HsqlDatabaseProperties.sql_sys_index_names;
break;
}
default :
throw unexpectedToken();
}
Object[] args = new Object[] {
property, flag, value
};
return new StatementCommand(type, args, null, null);
}
case Tokens.TEXT : {
read();
readThis(Tokens.TABLE);
readThis(Tokens.DEFAULTS);
String source = readQuotedString();
Object[] args = new Object[]{ source };
return new StatementCommand(
StatementTypes.SET_DATABASE_TEXT_SOURCE, args, null, null);
}
case Tokens.TRANSACTION : {
read();
if (readIfThis(Tokens.ROLLBACK)) {
readThis(Tokens.ON);
if (readIfThis(Tokens.INTERRUPT)) {
Boolean mode = processTrueOrFalseObject();
StatementCommand cs = new StatementCommand(
StatementTypes.SET_DATABASE_TRANSACTION_INTERRUPT,
new Object[]{ mode }, null, null);
return cs;
} else {
readThis(Tokens.CONFLICT);
Boolean mode = processTrueOrFalseObject();
StatementCommand cs = new StatementCommand(
StatementTypes.SET_DATABASE_TRANSACTION_CONFLICT,
new Object[]{ mode }, null, null);
return cs;
}
}
readThis(Tokens.CONTROL);
int mode = TransactionManager.LOCKS;
switch (token.tokenType) {
case Tokens.MVCC :
read();
mode = TransactionManager.MVCC;
break;
case Tokens.MVLOCKS :
read();
mode = TransactionManager.MVLOCKS;
break;
case Tokens.LOCKS :
read();
mode = TransactionManager.LOCKS;
break;
default :
}
HsqlName[] names =
database.schemaManager.getCatalogAndBaseTableNames();
Object[] args = new Object[]{ ValuePool.getInt(mode) };
StatementCommand cs = new StatementCommand(
StatementTypes.SET_DATABASE_TRANSACTION_CONTROL, args,
null, names);
return cs;
}
case Tokens.UNIQUE : {
read();
readThis(Tokens.NAME);
if (!isUndelimitedSimpleName()) {
throw unexpectedToken();
}
name = token.tokenString;
read();
if (name.length() != 16) {
throw Error.error(ErrorCode.X_42555);
}
if (!Charset.isInSet(name, Charset.unquotedIdentifier)
|| !Charset.startsWith(name,
Charset.uppercaseLetters)) {
throw Error.error(ErrorCode.X_42501);
}
Object[] args = new Object[]{ name };
return new StatementCommand(
StatementTypes.SET_DATABASE_UNIQUE_NAME, args, null, null);
}
default : {
throw unexpectedToken();
}
}
}
StatementCommand compileSetFilesProperty() {
read();
int type = 0;
Boolean flag = null;
Integer value = null;
Boolean mode = null;
HsqlName[] names = database.schemaManager.getCatalogNameArray();
checkDatabaseUpdateAuthorisation();
switch (token.tokenType) {
case Tokens.CHECK : {
read();
long longValue = readBigint();
long longValue2 = -1;
type = StatementTypes.SET_DATABASE_FILES_CHECK;
names = database.schemaManager.getCatalogNameArray();
if (readIfThis(Tokens.COMMA)) {
longValue2 = readBigint();
}
Object[] args = new Object[2];
args[0] = Long.valueOf(longValue);
args[1] = Long.valueOf(longValue2);
return new StatementCommand(type, args, null, names);
}
case Tokens.CACHE : {
read();
if (readIfThis(Tokens.SIZE)) {
value = readIntegerObject();
type = StatementTypes.SET_DATABASE_FILES_CACHE_SIZE;
} else {
readThis(Tokens.ROWS);
value = readIntegerObject();
type = StatementTypes.SET_DATABASE_FILES_CACHE_ROWS;
}
if (readIfThis(Tokens.NO)) {
readThis(Tokens.CHECK);
mode = Boolean.TRUE;
}
break;
}
case Tokens.SCALE : {
read();
value = readIntegerObject();
type = StatementTypes.SET_DATABASE_FILES_SCALE;
names = database.schemaManager.getCatalogAndBaseTableNames();
break;
}
case Tokens.SPACE : {
read();
if (token.tokenType == Tokens.TRUE) {
flag = Boolean.TRUE;
read();
} else if (token.tokenType == Tokens.FALSE) {
flag = Boolean.FALSE;
read();
} else {
value = readIntegerObject();
}
type = StatementTypes.SET_DATABASE_FILES_SPACE;
names = database.schemaManager.getCatalogAndBaseTableNames();
break;
}
case Tokens.LOB : {
read();
if (readIfThis(Tokens.SCALE)) {
value = readIntegerObject();
type = StatementTypes.SET_DATABASE_FILES_LOBS_SCALE;
} else {
readThis(Tokens.COMPRESSED);
type = StatementTypes.SET_DATABASE_FILES_LOBS_COMPRESSED;
flag = processTrueOrFalseObject();
}
names = database.schemaManager.getCatalogAndBaseTableNames();
break;
}
case Tokens.DEFRAG : {
read();
type = StatementTypes.SET_DATABASE_FILES_DEFRAG;
value = readIntegerObject();
break;
}
case Tokens.NIO : {
read();
if (readIfThis(Tokens.SIZE)) {
value = readIntegerObject();
} else {
flag = processTrueOrFalseObject();
}
type = StatementTypes.SET_DATABASE_FILES_NIO;
break;
}
case Tokens.BACKUP : {
read();
type = StatementTypes.SET_DATABASE_FILES_BACKUP_INCREMENT;
readThis(Tokens.INCREMENT);
flag = processTrueOrFalseObject();
break;
}
case Tokens.LOG : {
read();
if (readIfThis(Tokens.SIZE)) {
type = StatementTypes.SET_DATABASE_FILES_LOG_SIZE;
value = readIntegerObject();
} else {
type = StatementTypes.SET_DATABASE_FILES_LOG;
flag = processTrueOrFalseObject();
}
break;
}
case Tokens.TEMP : {
read();
readThis(Tokens.PATH);
type = StatementTypes.SET_DATABASE_FILES_TEMP_PATH;
value = readIntegerObject();
break;
}
case Tokens.WRITE : {
read();
readThis(Tokens.DELAY);
type = StatementTypes.SET_DATABASE_FILES_WRITE_DELAY;
int delay = 0;
if (token.tokenType == Tokens.TRUE) {
delay = database.getProperties().getDefaultWriteDelay();
read();
} else if (token.tokenType == Tokens.FALSE) {
delay = 0;
read();
} else {
delay = readInteger();
if (delay < 0) {
delay = 0;
}
if (token.tokenType == Tokens.MILLIS) {
read();
} else {
delay *= 1000;
}
}
value = Integer.valueOf(delay);
break;
}
case Tokens.SCRIPT : {
read();
readThis(Tokens.FORMAT);
if (token.tokenType == Tokens.TEXT) {
read();
value = Integer.valueOf(0);
} else {
readThis(Tokens.COMPRESSED);
value = Integer.valueOf(3);
}
type = StatementTypes.SET_DATABASE_FILES_SCRIPT_FORMAT;
break;
}
default :
throw unexpectedToken();
}
Object[] args = new Object[2];
args[0] = flag == null ? value
: flag;
args[1] = mode;
return new StatementCommand(type, args, null, names);
}
Object[] processTransactionCharacteristics() {
int level = 0;
boolean readonly = false;
Object[] args = new Object[2];
outerloop:
while (true) {
switch (token.tokenType) {
case Tokens.READ : {
if (args[0] != null) {
throw unexpectedToken();
}
read();
if (token.tokenType == Tokens.ONLY) {
read();
readonly = true;
} else {
readThis(Tokens.WRITE);
readonly = false;
}
args[0] = Boolean.valueOf(readonly);
break;
}
case Tokens.ISOLATION : {
if (args[1] != null) {
throw unexpectedToken();
}
read();
readThis(Tokens.LEVEL);
switch (token.tokenType) {
case Tokens.SERIALIZABLE :
read();
level = SessionInterface.TX_SERIALIZABLE;
break;
case Tokens.READ :
read();
if (token.tokenType == Tokens.COMMITTED) {
read();
level = SessionInterface.TX_READ_COMMITTED;
} else if (token.tokenType == Tokens.UNCOMMITTED) {
read();
level = SessionInterface.TX_READ_UNCOMMITTED;
} else {
throw unexpectedToken();
}
break;
case Tokens.REPEATABLE :
read();
readThis(Tokens.READ);
level = SessionInterface.TX_REPEATABLE_READ;
break;
default :
throw unexpectedToken();
}
args[1] = Integer.valueOf(level);
break;
}
case Tokens.COMMA : {
if (args[0] == null && args[1] == null) {
throw unexpectedToken();
}
read();
break;
}
default : {
break outerloop;
}
}
}
if (!readonly && level == 1) {
throw unexpectedToken(Tokens.T_WRITE);
}
return args;
}
/**
* Responsible for handling the execution of COMMIT [WORK]
*
* @throws HsqlException
*/
private Statement compileCommit() {
boolean chain = false;
read();
readIfThis(Tokens.WORK);
if (token.tokenType == Tokens.AND) {
read();
if (token.tokenType == Tokens.NO) {
read();
} else {
chain = true;
}
readThis(Tokens.CHAIN);
}
String sql = chain ? StatementSession.commitAndChainStatement.sql
: StatementSession.commitNoChainStatement.sql;
Statement st = new StatementSession(StatementTypes.COMMIT_WORK,
new Object[]{
Boolean.valueOf(chain) });
st.setSQL(sql);
return st;
}
private Statement compileStartTransaction() {
read();
readThis(Tokens.TRANSACTION);
Object[] args = processTransactionCharacteristics();
Statement cs = new StatementSession(StatementTypes.START_TRANSACTION,
args);
return cs;
}
private Statement compileLock() {
read();
if (readIfThis(Tokens.CATALOG)) {
return compileLockCatalog();
} else {
readThis(Tokens.TABLE);
return compileLockTable();
}
}
private Statement compileLockCatalog() {
boolean isLock = processTrueOrFalse();
int statementType = isLock ? StatementTypes.TRANSACTION_LOCK_CATALOG
: StatementTypes.TRANSACTION_UNLOCK_CATALOG;
HsqlName[] writeTableNames =
isLock ? database.schemaManager.getCatalogAndBaseTableNames()
: null;
Statement cs = new StatementSession(statementType, null,
writeTableNames);
return cs;
}
private Statement compileLockTable() {
OrderedHashSet readSet = new OrderedHashSet();
OrderedHashSet writeSet = new OrderedHashSet();
while (true) {
Table table = readTableName(true);
switch (token.tokenType) {
case Tokens.READ :
read();
readSet.add(table.getName());
break;
case Tokens.WRITE :
read();
writeSet.add(table.getName());
break;
default :
throw unexpectedToken();
}
if (token.tokenType == Tokens.COMMA) {
read();
continue;
}
break;
}
HsqlName[] writeTableNames = new HsqlName[writeSet.size()];
writeSet.toArray(writeTableNames);
readSet.removeAll(writeTableNames);
HsqlName[] readTableNames = new HsqlName[readSet.size()];
readSet.toArray(readTableNames);
Statement cs =
new StatementSession(StatementTypes.TRANSACTION_LOCK_TABLE,
readTableNames, writeTableNames);
return cs;
}
private Statement compileRollback() {
boolean chain = false;
String savepoint = null;
read();
if (token.tokenType == Tokens.WORK) {
read();
}
if (token.tokenType == Tokens.TO) {
read();
readThis(Tokens.SAVEPOINT);
checkIsSimpleName();
savepoint = token.tokenString;
read();
Object[] args = new Object[]{ savepoint };
Statement cs =
new StatementSession(StatementTypes.ROLLBACK_SAVEPOINT, args);
return cs;
} else {
if (token.tokenType == Tokens.AND) {
read();
if (token.tokenType == Tokens.NO) {
read();
} else {
chain = true;
}
readThis(Tokens.CHAIN);
}
}
String sql = chain ? StatementSession.rollbackAndChainStatement.sql
: StatementSession.rollbackNoChainStatement.sql;
Statement st = new StatementSession(StatementTypes.ROLLBACK_WORK,
new Object[]{
Boolean.valueOf(chain) });
st.setSQL(sql);
return st;
}
private Statement compileSavepoint() {
String name;
read();
checkIsSimpleName();
name = token.tokenString;
read();
Object[] args = new Object[]{ name };
return new StatementSession(StatementTypes.SAVEPOINT, args);
}
private Statement compileReleaseSavepoint() {
read();
readThis(Tokens.SAVEPOINT);
String name = token.tokenString;
read();
Object[] args = new Object[]{ name };
return new StatementSession(StatementTypes.RELEASE_SAVEPOINT, args);
}
private Statement compileSessionSettings() {
switch (token.tokenType) {
case Tokens.CHARACTERISTICS : {
read();
readThis(Tokens.AS);
readThis(Tokens.TRANSACTION);
Object[] args = processTransactionCharacteristics();
return new StatementSession(
StatementTypes.SET_SESSION_CHARACTERISTICS, args);
}
case Tokens.AUTHORIZATION : {
read();
Expression e = XreadValueSpecificationOrNull();
if (e == null) {
throw Error.error(ErrorCode.X_42584);
}
e.resolveTypes(session, null);
if (e.isUnresolvedParam()) {
e.dataType = Type.SQL_VARCHAR;
}
if (e.dataType == null || !e.dataType.isCharacterType()) {
throw Error.error(ErrorCode.X_42563);
}
Expression[] args = new Expression[] {
e, null
};
return new StatementSession(
session, compileContext,
StatementTypes.SET_SESSION_AUTHORIZATION, args);
}
case Tokens.RESULT : {
read();
readThis(Tokens.MEMORY);
readThis(Tokens.ROWS);
Integer size = readIntegerObject();
Object[] args = new Object[]{ size };
return new StatementSession(
StatementTypes.SET_SESSION_RESULT_MEMORY_ROWS, args);
}
case Tokens.FEATURE : {
read();
String feature = parseSQLFeatureValue();
Boolean value = processTrueOrFalseObject();
Object[] args = new Object[] {
feature, value
};
return new StatementSession(StatementTypes.SET_SESSION_FEATURE,
args);
}
default :
throw unexpectedToken();
}
}
private Statement compileSetRole() {
Expression e;
if (token.tokenType == Tokens.NONE) {
read();
e = new ExpressionValue(null, Type.SQL_VARCHAR);
} else {
e = XreadValueSpecificationOrNull();
if (e == null) {
throw Error.error(ErrorCode.X_2A000);
}
if (!e.getDataType().isCharacterType()) {
throw Error.error(ErrorCode.X_0P000);
}
if (e.getType() != OpTypes.VALUE
&& (e.getType() != OpTypes.SQL_FUNCTION
|| !((FunctionSQL) e).isValueFunction())) {
throw Error.error(ErrorCode.X_0P000);
}
}
return new StatementSession(session, compileContext,
StatementTypes.SET_ROLE,
new Expression[]{ e });
}
private Statement compileSetTimeZone() {
Expression e;
readThis(Tokens.ZONE);
if (token.tokenType == Tokens.LOCAL) {
read();
e = new ExpressionValue(null, Type.SQL_INTERVAL_HOUR_TO_MINUTE);
} else {
e = XreadIntervalValueExpression();
HsqlList unresolved = e.resolveColumnReferences(session,
RangeGroup.emptyGroup, RangeGroup.emptyArray, null);
ExpressionColumn.checkColumnsResolved(unresolved);
e.resolveTypes(session, null);
if (e.dataType == null) {
throw Error.error(ErrorCode.X_42563);
}
if (e.dataType.typeCode != Types.SQL_INTERVAL_HOUR_TO_MINUTE) {
throw Error.error(ErrorCode.X_42563);
}
}
return new StatementSession(session, compileContext,
StatementTypes.SET_TIME_ZONE,
new Expression[]{ e });
}
private Statement compileShutdown() {
int closemode;
session.checkAdmin();
closemode = Database.CLOSEMODE_NORMAL;
read();
switch (token.tokenType) {
case Tokens.IMMEDIATELY :
closemode = Database.CLOSEMODE_IMMEDIATELY;
read();
break;
case Tokens.COMPACT :
closemode = Database.CLOSEMODE_COMPACT;
read();
break;
case Tokens.SCRIPT :
closemode = Database.CLOSEMODE_SCRIPT;
read();
break;
default :
}
// only semicolon is accepted here
if (token.tokenType == Tokens.SEMICOLON) {
read();
}
if (token.tokenType != Tokens.X_ENDPARSE) {
throw unexpectedToken();
}
Object[] args = new Object[]{ Integer.valueOf(closemode) };
Statement cs = new StatementCommand(StatementTypes.DATABASE_SHUTDOWN,
args, null, null);
return cs;
}
private Statement compileBackup() {
String path;
Boolean blockingMode = null; // defaults to blocking
Boolean scriptMode = null; // defaults to non-script
Boolean compression = null; // defaults to compressed
Boolean files = null; // defaults to false
read();
readThis(Tokens.DATABASE);
readThis(Tokens.TO);
path = readQuotedString();
path = path.trim();
if (path.length() == 0) {
throw unexpectedToken(path);
}
outerLoop:
while (true) {
switch (token.tokenType) {
case Tokens.BLOCKING :
if (blockingMode != null) {
throw unexpectedToken();
}
blockingMode = Boolean.TRUE;
read();
break;
case Tokens.SCRIPT :
if (scriptMode != null) {
throw unexpectedToken();
}
scriptMode = Boolean.TRUE;
read();
break;
case Tokens.COMPRESSED :
if (compression != null) {
throw unexpectedToken();
}
compression = Boolean.TRUE;
read();
break;
case Tokens.NOT :
read();
if (token.tokenType == Tokens.COMPRESSED) {
if (compression != null) {
throw unexpectedToken();
}
compression = Boolean.FALSE;
read();
} else if (token.tokenType == Tokens.BLOCKING) {
if (blockingMode != null) {
throw unexpectedToken();
}
blockingMode = Boolean.FALSE;
read();
} else {
throw unexpectedToken();
}
break;
case Tokens.AS :
if (files != null) {
throw unexpectedToken();
}
read();
readThis(Tokens.FILES);
files = Boolean.TRUE;
break;
default :
break outerLoop;
}
}
if (scriptMode == null) {
scriptMode = Boolean.FALSE;
}
if (blockingMode == null) {
blockingMode = Boolean.TRUE;
}
if (compression == null) {
compression = Boolean.TRUE;
}
if (files == null) {
files = Boolean.FALSE;
}
if (scriptMode) {
if (!blockingMode) {
throw unexpectedToken(Tokens.T_NOT);
}
}
HsqlName[] names =
blockingMode ? database.schemaManager.getCatalogAndBaseTableNames()
: HsqlName.emptyArray;
Object[] args = new Object[] {
path, blockingMode, scriptMode, compression, files
};
Statement cs = new StatementCommand(StatementTypes.DATABASE_BACKUP,
args, null, names);
return cs;
}
private Statement compilePerform() {
Integer type = Integer.valueOf(1);
Integer number = Integer.valueOf(-1);
read();
switch (token.tokenType) {
case Tokens.CHECK : {
read();
HsqlName tableName = null;
readThis(Tokens.TABLE);
readThis(Tokens.SPACE);
if (readIfThis(Tokens.AND)) {
readThis("FIX");
type = Integer.valueOf(2);
}
Object[] args = new Object[] {
tableName, type, number
};
HsqlName[] names =
database.schemaManager.getCatalogAndBaseTableNames();
return new StatementCommand(StatementTypes.CHECK_INDEX, args,
null, names);
}
case Tokens.IMPORT : {
read();
return compileImportScript();
}
case Tokens.EXPORT : {
return compileExport();
}
default :
throw unexpectedToken();
}
}
private Statement compileExport() {
read();
return compileScript(true);
}
private Statement compileImportScript() {
String fileName;
int mode = RowInsertInterface.modes.continueOnError;
Boolean isVersioning = Boolean.FALSE;
readThis(Tokens.SCRIPT);
if (token.tokenType == Tokens.VERSIONING) {
readThis(Tokens.VERSIONING);
isVersioning = Boolean.TRUE;
}
readThis(Tokens.DATA);
readThis(Tokens.FROM);
fileName = readQuotedString();
if (!isVersioning) {
mode = readLoadMode();
}
HsqlName[] names =
database.schemaManager.getCatalogAndBaseTableNames();
Object[] args = new Object[] {
fileName, Integer.valueOf(mode), isVersioning
};
return new StatementCommand(StatementTypes.LOAD_SCRIPT, args, null,
names);
}
private int readLoadMode() {
int mode = -1;
switch (token.tokenType) {
case Tokens.CONTINUE :
mode = RowInsertInterface.modes.continueOnError;
read();
break;
case Tokens.STOP :
mode = RowInsertInterface.modes.stopOnError;
read();
break;
case Tokens.CHECK :
mode = RowInsertInterface.modes.checkUntillError;
read();
break;
default :
throw unexpectedToken();
}
readThis(Tokens.ON);
readThis(Tokens.ERROR);
return mode;
}
private Statement compileCheckpoint() {
boolean defrag = false;
read();
if (token.tokenType == Tokens.DEFRAG) {
defrag = true;
read();
} else if (token.tokenType == Tokens.SEMICOLON) {
read();
// only semicolon is accepted here
}
if (token.tokenType != Tokens.X_ENDPARSE) {
throw unexpectedToken();
}
HsqlName[] names =
database.schemaManager.getCatalogAndBaseTableNames();
Object[] args = new Object[]{ Boolean.valueOf(defrag) };
Statement cs = new StatementCommand(StatementTypes.DATABASE_CHECKPOINT,
args, null, names);
return cs;
}
public static Statement getAutoCheckpointStatement(Database database) {
HsqlName[] names =
database.schemaManager.getCatalogAndBaseTableNames();
Object[] args = new Object[]{ Boolean.FALSE };
Statement cs = new StatementCommand(StatementTypes.DATABASE_CHECKPOINT,
args, null, names);
cs.setCompileTimestamp(database.txManager.getGlobalChangeTimestamp());
cs.setSQL(Tokens.T_CHECKPOINT);
return cs;
}
private Statement compileDisconnect() {
read();
String sql = Tokens.T_DISCONNECT;
Statement cs = new StatementSession(StatementTypes.DISCONNECT, null);
return cs;
}
private Statement compileExplainPlan() {
Statement cs;
readThis(Tokens.PLAN);
readThis(Tokens.FOR);
cs = compilePart(ResultProperties.defaultPropsValue);
cs.setDescribe();
return new StatementCommand(StatementTypes.EXPLAIN_PLAN,
new Object[]{ cs });
}
private Statement compileExplainReferences() {
SchemaObject object;
boolean referencesFrom = false;
readThis(Tokens.REFERENCES);
if (!readIfThis(Tokens.TO)) {
readThis(Tokens.FROM);
referencesFrom = true;
}
int type;
switch (token.tokenType) {
case Tokens.TABLE :
case Tokens.VIEW :
read();
type = SchemaObject.TABLE;
break;
case Tokens.SPECIFIC :
read();
readThis(Tokens.ROUTINE);
type = SchemaObject.SPECIFIC_ROUTINE;
break;
case Tokens.DOMAIN :
case Tokens.TYPE :
read();
type = SchemaObject.DOMAIN;
break;
default :
throw unexpectedToken();
}
object = readSchemaObjectName(type);
HsqlName name = object.getName();
if (object instanceof Routine) {
name = ((Routine) object).getSpecificName();
}
return new StatementCommand(StatementTypes.EXPLAIN_REFERENCES,
new Object[] {
name, Boolean.valueOf(referencesFrom)
});
}
private StatementCommand compileTableSource(Table t) {
boolean isSourceHeader = false;
boolean isDesc = false;
String source;
Object[] args = new Object[5];
args[0] = t.getName();
if (!t.isText()) {
Exception e = Error.error(ErrorCode.X_S0522);
}
// SET TABLE SOURCE ON
if (token.tokenType == Tokens.ON) {
read();
String sql = getLastPart();
args[1] = Boolean.TRUE;
return new StatementCommand(StatementTypes.SET_TABLE_SOURCE, args,
null, new HsqlName[]{ t.getName() });
} else if (token.tokenType == Tokens.OFF) {
read();
String sql = getLastPart();
args[1] = Boolean.FALSE;
return new StatementCommand(StatementTypes.SET_TABLE_SOURCE, args,
null, new HsqlName[]{ t.getName() });
} else if (token.tokenType == Tokens.HEADER) {
read();
isSourceHeader = true;
}
if (token.tokenType == Tokens.X_DELIMITED_IDENTIFIER) {
source = token.tokenString;
read();
} else {
source = readQuotedString();
}
if (!isSourceHeader && token.tokenType == Tokens.DESC) {
isDesc = true;
read();
}
String sql = getLastPart();
args[2] = source;
args[3] = Boolean.valueOf(isDesc);
args[4] = Boolean.valueOf(isSourceHeader);
int type = isSourceHeader ? StatementTypes.SET_TABLE_SOURCE_HEADER
: StatementTypes.SET_TABLE_SOURCE;
return new StatementCommand(type, args, null,
new HsqlName[]{ t.getName() });
}
}
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