This commit is contained in:
zyyang 2020-12-30 14:09:08 +08:00
parent d5c2782fb7
commit 49df8540ea
10 changed files with 1881 additions and 1451 deletions

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@ -0,0 +1,808 @@
/***************************************************************************
* Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
*
* This program is free software: you can use, redistribute, and/or modify
* it under the terms of the GNU Affero General Public License, version 3
* or later ("AGPL"), as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*****************************************************************************/
package com.taosdata.jdbc;
import java.sql.*;
import java.util.ArrayList;
import java.util.List;
public abstract class AbstractDatabaseMetaData implements DatabaseMetaData {
private final static String PRODUCT_NAME = "TDengine";
private final static String PRODUCT_VESION = "2.0.x.x";
private final static String DRIVER_NAME = "taos-jdbcdriver";
private final static String DRIVER_VERSION = "2.0.x";
private final static int DRIVER_MAJAR_VERSION = 2;
private final static int DRIVER_MINOR_VERSION = 0;
public boolean allProceduresAreCallable() throws SQLException {
return false;
}
public boolean allTablesAreSelectable() throws SQLException {
return false;
}
public abstract String getURL() throws SQLException;
public abstract String getUserName() throws SQLException;
public boolean isReadOnly() throws SQLException {
return false;
}
public boolean nullsAreSortedHigh() throws SQLException {
return false;
}
public boolean nullsAreSortedLow() throws SQLException {
return !nullsAreSortedHigh();
}
public boolean nullsAreSortedAtStart() throws SQLException {
return true;
}
public boolean nullsAreSortedAtEnd() throws SQLException {
return !nullsAreSortedAtStart();
}
public String getDatabaseProductName() throws SQLException {
return PRODUCT_NAME;
}
public String getDatabaseProductVersion() throws SQLException {
return PRODUCT_VESION;
}
public String getDriverName() throws SQLException {
return DRIVER_NAME;
}
public String getDriverVersion() throws SQLException {
return DRIVER_VERSION;
}
public int getDriverMajorVersion() {
return DRIVER_MAJAR_VERSION;
}
public int getDriverMinorVersion() {
return DRIVER_MINOR_VERSION;
}
public boolean usesLocalFiles() throws SQLException {
return false;
}
public boolean usesLocalFilePerTable() throws SQLException {
return false;
}
public boolean supportsMixedCaseIdentifiers() throws SQLException {
return false;
}
public boolean storesUpperCaseIdentifiers() throws SQLException {
return false;
}
public boolean storesLowerCaseIdentifiers() throws SQLException {
return false;
}
public boolean storesMixedCaseIdentifiers() throws SQLException {
return false;
}
public boolean supportsMixedCaseQuotedIdentifiers() throws SQLException {
return false;
}
public boolean storesUpperCaseQuotedIdentifiers() throws SQLException {
return false;
}
public boolean storesLowerCaseQuotedIdentifiers() throws SQLException {
return false;
}
public boolean storesMixedCaseQuotedIdentifiers() throws SQLException {
return false;
}
public String getIdentifierQuoteString() throws SQLException {
return " ";
}
public String getSQLKeywords() throws SQLException {
return null;
}
public String getNumericFunctions() throws SQLException {
return null;
}
public String getStringFunctions() throws SQLException {
return null;
}
public String getSystemFunctions() throws SQLException {
return null;
}
public String getTimeDateFunctions() throws SQLException {
return null;
}
public String getSearchStringEscape() throws SQLException {
return null;
}
public String getExtraNameCharacters() throws SQLException {
return null;
}
public boolean supportsAlterTableWithAddColumn() throws SQLException {
return true;
}
public boolean supportsAlterTableWithDropColumn() throws SQLException {
return true;
}
public boolean supportsColumnAliasing() throws SQLException {
return true;
}
public boolean nullPlusNonNullIsNull() throws SQLException {
return false;
}
public boolean supportsConvert() throws SQLException {
return false;
}
public boolean supportsConvert(int fromType, int toType) throws SQLException {
return false;
}
public boolean supportsTableCorrelationNames() throws SQLException {
return false;
}
public boolean supportsDifferentTableCorrelationNames() throws SQLException {
return false;
}
public boolean supportsExpressionsInOrderBy() throws SQLException {
return false;
}
public boolean supportsOrderByUnrelated() throws SQLException {
return false;
}
public boolean supportsGroupBy() throws SQLException {
return false;
}
public boolean supportsGroupByUnrelated() throws SQLException {
return false;
}
public boolean supportsGroupByBeyondSelect() throws SQLException {
return false;
}
public boolean supportsLikeEscapeClause() throws SQLException {
return false;
}
public boolean supportsMultipleResultSets() throws SQLException {
return false;
}
public boolean supportsMultipleTransactions() throws SQLException {
return false;
}
public boolean supportsNonNullableColumns() throws SQLException {
return false;
}
public boolean supportsMinimumSQLGrammar() throws SQLException {
return false;
}
public boolean supportsCoreSQLGrammar() throws SQLException {
return false;
}
public boolean supportsExtendedSQLGrammar() throws SQLException {
return false;
}
public boolean supportsANSI92EntryLevelSQL() throws SQLException {
return false;
}
public boolean supportsANSI92IntermediateSQL() throws SQLException {
return false;
}
public boolean supportsANSI92FullSQL() throws SQLException {
return false;
}
public boolean supportsIntegrityEnhancementFacility() throws SQLException {
return false;
}
public boolean supportsOuterJoins() throws SQLException {
return false;
}
public boolean supportsFullOuterJoins() throws SQLException {
return false;
}
public boolean supportsLimitedOuterJoins() throws SQLException {
return false;
}
public String getSchemaTerm() throws SQLException {
return null;
}
public String getProcedureTerm() throws SQLException {
return null;
}
public String getCatalogTerm() throws SQLException {
return "database";
}
public boolean isCatalogAtStart() throws SQLException {
return true;
}
public String getCatalogSeparator() throws SQLException {
return ".";
}
public boolean supportsSchemasInDataManipulation() throws SQLException {
return false;
}
public boolean supportsSchemasInProcedureCalls() throws SQLException {
return false;
}
public boolean supportsSchemasInTableDefinitions() throws SQLException {
return false;
}
public boolean supportsSchemasInIndexDefinitions() throws SQLException {
return false;
}
public boolean supportsSchemasInPrivilegeDefinitions() throws SQLException {
return false;
}
public boolean supportsCatalogsInDataManipulation() throws SQLException {
return true;
}
public boolean supportsCatalogsInProcedureCalls() throws SQLException {
return false;
}
public boolean supportsCatalogsInTableDefinitions() throws SQLException {
return false;
}
public boolean supportsCatalogsInIndexDefinitions() throws SQLException {
return false;
}
public boolean supportsCatalogsInPrivilegeDefinitions() throws SQLException {
return false;
}
public boolean supportsPositionedDelete() throws SQLException {
return false;
}
public boolean supportsPositionedUpdate() throws SQLException {
return false;
}
public boolean supportsSelectForUpdate() throws SQLException {
return false;
}
public boolean supportsStoredProcedures() throws SQLException {
return false;
}
public boolean supportsSubqueriesInComparisons() throws SQLException {
return false;
}
public boolean supportsSubqueriesInExists() throws SQLException {
return false;
}
public boolean supportsSubqueriesInIns() throws SQLException {
return false;
}
public boolean supportsSubqueriesInQuantifieds() throws SQLException {
return false;
}
public boolean supportsCorrelatedSubqueries() throws SQLException {
return false;
}
public boolean supportsUnion() throws SQLException {
return false;
}
public boolean supportsUnionAll() throws SQLException {
return false;
}
public boolean supportsOpenCursorsAcrossCommit() throws SQLException {
return false;
}
public boolean supportsOpenCursorsAcrossRollback() throws SQLException {
return false;
}
public boolean supportsOpenStatementsAcrossCommit() throws SQLException {
return false;
}
public boolean supportsOpenStatementsAcrossRollback() throws SQLException {
return false;
}
public int getMaxBinaryLiteralLength() throws SQLException {
return 0;
}
public int getMaxCharLiteralLength() throws SQLException {
return 0;
}
public int getMaxColumnNameLength() throws SQLException {
return 0;
}
public int getMaxColumnsInGroupBy() throws SQLException {
return 0;
}
public int getMaxColumnsInIndex() throws SQLException {
return 0;
}
public int getMaxColumnsInOrderBy() throws SQLException {
return 0;
}
public int getMaxColumnsInSelect() throws SQLException {
return 0;
}
public int getMaxColumnsInTable() throws SQLException {
return 0;
}
public int getMaxConnections() throws SQLException {
return 0;
}
public int getMaxCursorNameLength() throws SQLException {
return 0;
}
public int getMaxIndexLength() throws SQLException {
return 0;
}
public int getMaxSchemaNameLength() throws SQLException {
return 0;
}
public int getMaxProcedureNameLength() throws SQLException {
return 0;
}
public int getMaxCatalogNameLength() throws SQLException {
return 0;
}
public int getMaxRowSize() throws SQLException {
return 0;
}
public boolean doesMaxRowSizeIncludeBlobs() throws SQLException {
return false;
}
public int getMaxStatementLength() throws SQLException {
return 0;
}
public int getMaxStatements() throws SQLException {
return 0;
}
public int getMaxTableNameLength() throws SQLException {
return 0;
}
public int getMaxTablesInSelect() throws SQLException {
return 0;
}
public int getMaxUserNameLength() throws SQLException {
return 0;
}
public int getDefaultTransactionIsolation() throws SQLException {
return 0;
}
public boolean supportsTransactions() throws SQLException {
return false;
}
public boolean supportsTransactionIsolationLevel(int level) throws SQLException {
return false;
}
public boolean supportsDataDefinitionAndDataManipulationTransactions() throws SQLException {
return false;
}
public boolean supportsDataManipulationTransactionsOnly() throws SQLException {
return false;
}
public boolean dataDefinitionCausesTransactionCommit() throws SQLException {
return false;
}
public boolean dataDefinitionIgnoredInTransactions() throws SQLException {
return false;
}
public ResultSet getProcedures(String catalog, String schemaPattern, String procedureNamePattern)
throws SQLException {
throw new SQLException(TSDBConstants.UNSUPPORT_METHOD_EXCEPTIONZ_MSG);
}
public ResultSet getProcedureColumns(String catalog, String schemaPattern, String procedureNamePattern,
String columnNamePattern) throws SQLException {
throw new SQLException(TSDBConstants.UNSUPPORT_METHOD_EXCEPTIONZ_MSG);
}
public abstract ResultSet getTables(String catalog, String schemaPattern, String tableNamePattern, String[] types)
throws SQLException;
public ResultSet getSchemas() throws SQLException {
return getEmptyResultSet();
}
public abstract ResultSet getCatalogs() throws SQLException;
public ResultSet getTableTypes() throws SQLException {
DatabaseMetaDataResultSet resultSet = new DatabaseMetaDataResultSet();
// set up ColumnMetaDataList
List<ColumnMetaData> columnMetaDataList = new ArrayList<ColumnMetaData>(1);
ColumnMetaData colMetaData = new ColumnMetaData();
colMetaData.setColIndex(0);
colMetaData.setColName("TABLE_TYPE");
colMetaData.setColSize(10);
colMetaData.setColType(TSDBConstants.TSDB_DATA_TYPE_BINARY);
columnMetaDataList.add(colMetaData);
// set up rowDataList
List<TSDBResultSetRowData> rowDataList = new ArrayList<TSDBResultSetRowData>(2);
TSDBResultSetRowData rowData = new TSDBResultSetRowData();
rowData.setString(0, "TABLE");
rowDataList.add(rowData);
rowData = new TSDBResultSetRowData();
rowData.setString(0, "STABLE");
rowDataList.add(rowData);
resultSet.setColumnMetaDataList(columnMetaDataList);
resultSet.setRowDataList(rowDataList);
return resultSet;
}
public abstract ResultSet getColumns(String catalog, String schemaPattern, String tableNamePattern, String columnNamePattern) throws SQLException;
protected int getNullable(int index, String typeName) {
if (index == 0 && "TIMESTAMP".equals(typeName))
return DatabaseMetaData.columnNoNulls;
return DatabaseMetaData.columnNullable;
}
protected int getColumnSize(String typeName, int length) {
switch (typeName) {
case "TIMESTAMP":
return 23;
default:
return 0;
}
}
protected int getDecimalDigits(String typeName) {
switch (typeName) {
case "FLOAT":
return 5;
case "DOUBLE":
return 9;
default:
return 0;
}
}
protected int getDataType(String typeName) {
switch (typeName) {
case "TIMESTAMP":
return Types.TIMESTAMP;
case "INT":
return Types.INTEGER;
case "BIGINT":
return Types.BIGINT;
case "FLOAT":
return Types.FLOAT;
case "DOUBLE":
return Types.DOUBLE;
case "BINARY":
return Types.BINARY;
case "SMALLINT":
return Types.SMALLINT;
case "TINYINT":
return Types.TINYINT;
case "BOOL":
return Types.BOOLEAN;
case "NCHAR":
return Types.NCHAR;
default:
return Types.NULL;
}
}
public ResultSet getColumnPrivileges(String catalog, String schema, String table, String columnNamePattern)
throws SQLException {
return getEmptyResultSet();
}
public ResultSet getTablePrivileges(String catalog, String schemaPattern, String tableNamePattern)
throws SQLException {
return getEmptyResultSet();
}
public ResultSet getBestRowIdentifier(String catalog, String schema, String table, int scope, boolean nullable)
throws SQLException {
return getEmptyResultSet();
}
public ResultSet getVersionColumns(String catalog, String schema, String table) throws SQLException {
return getEmptyResultSet();
}
public ResultSet getPrimaryKeys(String catalog, String schema, String table) throws SQLException {
return getEmptyResultSet();
}
public ResultSet getImportedKeys(String catalog, String schema, String table) throws SQLException {
return getEmptyResultSet();
}
public ResultSet getExportedKeys(String catalog, String schema, String table) throws SQLException {
return getEmptyResultSet();
}
public ResultSet getCrossReference(String parentCatalog, String parentSchema, String parentTable,
String foreignCatalog, String foreignSchema, String foreignTable) throws SQLException {
return getEmptyResultSet();
}
public ResultSet getTypeInfo() throws SQLException {
return getEmptyResultSet();
}
public ResultSet getIndexInfo(String catalog, String schema, String table, boolean unique, boolean approximate)
throws SQLException {
return getEmptyResultSet();
}
public boolean supportsResultSetType(int type) throws SQLException {
return false;
}
public boolean supportsResultSetConcurrency(int type, int concurrency) throws SQLException {
return false;
}
public boolean ownUpdatesAreVisible(int type) throws SQLException {
return false;
}
public boolean ownDeletesAreVisible(int type) throws SQLException {
return false;
}
public boolean ownInsertsAreVisible(int type) throws SQLException {
return false;
}
public boolean othersUpdatesAreVisible(int type) throws SQLException {
return false;
}
public boolean othersDeletesAreVisible(int type) throws SQLException {
return false;
}
public boolean othersInsertsAreVisible(int type) throws SQLException {
return false;
}
public boolean updatesAreDetected(int type) throws SQLException {
return false;
}
public boolean deletesAreDetected(int type) throws SQLException {
return false;
}
public boolean insertsAreDetected(int type) throws SQLException {
return false;
}
public boolean supportsBatchUpdates() throws SQLException {
return false;
}
public ResultSet getUDTs(String catalog, String schemaPattern, String typeNamePattern, int[] types)
throws SQLException {
return getEmptyResultSet();
}
public Connection getConnection() throws SQLException {
return null;
}
public boolean supportsSavepoints() throws SQLException {
return false;
}
public boolean supportsNamedParameters() throws SQLException {
return false;
}
public boolean supportsMultipleOpenResults() throws SQLException {
return false;
}
public boolean supportsGetGeneratedKeys() throws SQLException {
return false;
}
public ResultSet getSuperTypes(String catalog, String schemaPattern, String typeNamePattern) throws SQLException {
return getEmptyResultSet();
}
public ResultSet getSuperTables(String catalog, String schemaPattern, String tableNamePattern) throws SQLException {
return getEmptyResultSet();
}
public ResultSet getAttributes(String catalog, String schemaPattern, String typeNamePattern,
String attributeNamePattern) throws SQLException {
return getEmptyResultSet();
}
public boolean supportsResultSetHoldability(int holdability) throws SQLException {
return false;
}
public int getResultSetHoldability() throws SQLException {
return 0;
}
public int getDatabaseMajorVersion() throws SQLException {
return 0;
}
public int getDatabaseMinorVersion() throws SQLException {
return 0;
}
public int getJDBCMajorVersion() throws SQLException {
return 0;
}
public int getJDBCMinorVersion() throws SQLException {
return 0;
}
public int getSQLStateType() throws SQLException {
return 0;
}
public boolean locatorsUpdateCopy() throws SQLException {
return false;
}
public boolean supportsStatementPooling() throws SQLException {
return false;
}
public RowIdLifetime getRowIdLifetime() throws SQLException {
return null;
}
public ResultSet getSchemas(String catalog, String schemaPattern) throws SQLException {
return null;
}
public boolean supportsStoredFunctionsUsingCallSyntax() throws SQLException {
return false;
}
public boolean autoCommitFailureClosesAllResultSets() throws SQLException {
return false;
}
public ResultSet getClientInfoProperties() throws SQLException {
return getEmptyResultSet();
}
public ResultSet getFunctions(String catalog, String schemaPattern, String functionNamePattern)
throws SQLException {
return getEmptyResultSet();
}
public ResultSet getFunctionColumns(String catalog, String schemaPattern, String functionNamePattern,
String columnNamePattern) throws SQLException {
return getEmptyResultSet();
}
public ResultSet getPseudoColumns(String catalog, String schemaPattern, String tableNamePattern,
String columnNamePattern) throws SQLException {
return getEmptyResultSet();
}
public boolean generatedKeyAlwaysReturned() throws SQLException {
return false;
}
private ResultSet getEmptyResultSet() {
return new EmptyResultSet();
}
}

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@ -19,68 +19,71 @@ import java.util.Map;
public abstract class TSDBConstants {
public static final String DEFAULT_PORT = "6200";
public static final String UNSUPPORT_METHOD_EXCEPTIONZ_MSG = "this operation is NOT supported currently!";
public static final String INVALID_VARIABLES = "invalid variables";
public static Map<Integer, String> DATATYPE_MAP = null;
public static final String DEFAULT_PORT = "6200";
public static final String UNSUPPORT_METHOD_EXCEPTIONZ_MSG = "this operation is NOT supported currently!";
public static final String INVALID_VARIABLES = "invalid variables";
public static Map<Integer, String> DATATYPE_MAP = null;
public static final long JNI_NULL_POINTER = 0L;
public static final long JNI_NULL_POINTER = 0L;
public static final int JNI_SUCCESS = 0;
public static final int JNI_TDENGINE_ERROR = -1;
public static final int JNI_CONNECTION_NULL = -2;
public static final int JNI_RESULT_SET_NULL = -3;
public static final int JNI_NUM_OF_FIELDS_0 = -4;
public static final int JNI_SQL_NULL = -5;
public static final int JNI_FETCH_END = -6;
public static final int TSDB_DATA_TYPE_NULL = 0;
public static final int TSDB_DATA_TYPE_BOOL = 1;
public static final int TSDB_DATA_TYPE_TINYINT = 2;
public static final int TSDB_DATA_TYPE_SMALLINT = 3;
public static final int TSDB_DATA_TYPE_INT = 4;
public static final int TSDB_DATA_TYPE_BIGINT = 5;
public static final int TSDB_DATA_TYPE_FLOAT = 6;
public static final int TSDB_DATA_TYPE_DOUBLE = 7;
public static final int TSDB_DATA_TYPE_BINARY = 8;
public static final int TSDB_DATA_TYPE_TIMESTAMP = 9;
public static final int TSDB_DATA_TYPE_NCHAR = 10;
public static String WrapErrMsg(String msg) {
return "TDengine Error: " + msg;
}
public static final int JNI_SUCCESS = 0;
public static final int JNI_TDENGINE_ERROR = -1;
public static final int JNI_CONNECTION_NULL = -2;
public static final int JNI_RESULT_SET_NULL = -3;
public static final int JNI_NUM_OF_FIELDS_0 = -4;
public static final int JNI_SQL_NULL = -5;
public static final int JNI_FETCH_END = -6;
public static String FixErrMsg(int code) {
switch (code) {
case JNI_TDENGINE_ERROR:
return WrapErrMsg("internal error of database!");
case JNI_CONNECTION_NULL:
return WrapErrMsg("invalid tdengine connection!");
case JNI_RESULT_SET_NULL:
return WrapErrMsg("invalid resultset pointer!");
case JNI_NUM_OF_FIELDS_0:
return WrapErrMsg("invalid num of fields!");
case JNI_SQL_NULL:
return WrapErrMsg("can't execute empty sql!");
case JNI_FETCH_END:
return WrapErrMsg("fetch to the end of resultset");
default:
break;
}
return WrapErrMsg("unkown error!");
}
public static final int TSDB_DATA_TYPE_NULL = 0;
public static final int TSDB_DATA_TYPE_BOOL = 1;
public static final int TSDB_DATA_TYPE_TINYINT = 2;
public static final int TSDB_DATA_TYPE_SMALLINT = 3;
public static final int TSDB_DATA_TYPE_INT = 4;
public static final int TSDB_DATA_TYPE_BIGINT = 5;
public static final int TSDB_DATA_TYPE_FLOAT = 6;
public static final int TSDB_DATA_TYPE_DOUBLE = 7;
public static final int TSDB_DATA_TYPE_BINARY = 8;
public static final int TSDB_DATA_TYPE_TIMESTAMP = 9;
public static final int TSDB_DATA_TYPE_NCHAR = 10;
static {
DATATYPE_MAP = new HashMap<Integer, String>();
DATATYPE_MAP.put(1, "BOOL");
DATATYPE_MAP.put(2, "TINYINT");
DATATYPE_MAP.put(3, "SMALLINT");
DATATYPE_MAP.put(4, "INT");
DATATYPE_MAP.put(5, "BIGINT");
DATATYPE_MAP.put(6, "FLOAT");
DATATYPE_MAP.put(7, "DOUBLE");
DATATYPE_MAP.put(8, "BINARY");
DATATYPE_MAP.put(9, "TIMESTAMP");
DATATYPE_MAP.put(10, "NCHAR");
}
// nchar field's max length
public static final int maxFieldSize = 16 * 1024;
public static String WrapErrMsg(String msg) {
return "TDengine Error: " + msg;
}
public static String FixErrMsg(int code) {
switch (code) {
case JNI_TDENGINE_ERROR:
return WrapErrMsg("internal error of database!");
case JNI_CONNECTION_NULL:
return WrapErrMsg("invalid tdengine connection!");
case JNI_RESULT_SET_NULL:
return WrapErrMsg("invalid resultset pointer!");
case JNI_NUM_OF_FIELDS_0:
return WrapErrMsg("invalid num of fields!");
case JNI_SQL_NULL:
return WrapErrMsg("can't execute empty sql!");
case JNI_FETCH_END:
return WrapErrMsg("fetch to the end of resultset");
default:
break;
}
return WrapErrMsg("unkown error!");
}
static {
DATATYPE_MAP = new HashMap<Integer, String>();
DATATYPE_MAP.put(1, "BOOL");
DATATYPE_MAP.put(2, "TINYINT");
DATATYPE_MAP.put(3, "SMALLINT");
DATATYPE_MAP.put(4, "INT");
DATATYPE_MAP.put(5, "BIGINT");
DATATYPE_MAP.put(6, "FLOAT");
DATATYPE_MAP.put(7, "DOUBLE");
DATATYPE_MAP.put(8, "BINARY");
DATATYPE_MAP.put(9, "TIMESTAMP");
DATATYPE_MAP.put(10, "NCHAR");
}
}

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@ -1,24 +1,29 @@
package com.taosdata.jdbc.rs;
import com.taosdata.jdbc.TSDBConstants;
import com.taosdata.jdbc.TSDBDriver;
import java.sql.*;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.Map;
import java.util.Properties;
import java.util.concurrent.Executor;
import java.util.concurrent.atomic.AtomicBoolean;
public class RestfulConnection implements Connection {
private static final String CONNECTION_IS_CLOSED = "connection is closed.";
private static final String AUTO_COMMIT_IS_TRUE = "auto commit is true";
private final String host;
private final int port;
private final Properties props;
private final String database;
private volatile String database;
private final String url;
/**********************************************/
private volatile AtomicBoolean isClosed = new AtomicBoolean(false);
private DatabaseMetaData databaseMetaData;
/******************************************************/
private boolean isClosed;
private DatabaseMetaData metadata;
private Map<String, Class<?>> typeMap;
private Properties clientInfoProps = new Properties();
public RestfulConnection(String host, String port, Properties props, String database, String url) {
this.host = host;
@ -26,282 +31,425 @@ public class RestfulConnection implements Connection {
this.props = props;
this.database = database;
this.url = url;
//TODO
this.databaseMetaData = new RestfulDatabaseMetaData();
this.metadata = new RestfulDatabaseMetaData(url, props.getProperty(TSDBDriver.PROPERTY_KEY_USER), this);
}
@Override
public Statement createStatement() throws SQLException {
if (isClosed())
throw new SQLException(TSDBConstants.WrapErrMsg("restful TDengine connection is closed."));
throw new SQLException(CONNECTION_IS_CLOSED);
return new RestfulStatement(this, database);
}
@Override
public PreparedStatement prepareStatement(String sql) throws SQLException {
//TODO:
return null;
if (isClosed())
throw new SQLException(CONNECTION_IS_CLOSED);
//TODO: prepareStatement
throw new SQLFeatureNotSupportedException(TSDBConstants.UNSUPPORT_METHOD_EXCEPTIONZ_MSG);
}
@Override
public CallableStatement prepareCall(String sql) throws SQLException {
throw new SQLException(TSDBConstants.UNSUPPORT_METHOD_EXCEPTIONZ_MSG);
if (isClosed())
throw new SQLException(CONNECTION_IS_CLOSED);
throw new SQLFeatureNotSupportedException(TSDBConstants.UNSUPPORT_METHOD_EXCEPTIONZ_MSG);
}
@Override
public String nativeSQL(String sql) throws SQLException {
throw new SQLException(TSDBConstants.UNSUPPORT_METHOD_EXCEPTIONZ_MSG);
if (isClosed())
throw new SQLException(CONNECTION_IS_CLOSED);
//nothing did
return sql;
}
@Override
public void setAutoCommit(boolean autoCommit) throws SQLException {
throw new SQLException(TSDBConstants.UNSUPPORT_METHOD_EXCEPTIONZ_MSG);
if (isClosed())
throw new SQLException(CONNECTION_IS_CLOSED);
if (!autoCommit)
throw new SQLFeatureNotSupportedException(TSDBConstants.UNSUPPORT_METHOD_EXCEPTIONZ_MSG);
}
@Override
public boolean getAutoCommit() throws SQLException {
if (isClosed())
throw new SQLException(CONNECTION_IS_CLOSED);
return true;
}
@Override
public void commit() throws SQLException {
if (isClosed())
throw new SQLException(CONNECTION_IS_CLOSED);
if (getAutoCommit())
throw new SQLException(AUTO_COMMIT_IS_TRUE);
//nothing to do
}
@Override
public void rollback() throws SQLException {
throw new SQLException(TSDBConstants.UNSUPPORT_METHOD_EXCEPTIONZ_MSG);
if (isClosed())
throw new SQLException(CONNECTION_IS_CLOSED);
if (getAutoCommit())
throw new SQLException(AUTO_COMMIT_IS_TRUE);
//nothing to do
}
@Override
public void close() throws SQLException {
//TODO: check if resource need release
this.isClosed.set(true);
if (isClosed)
return;
//TODO: release all resources
isClosed = true;
}
@Override
public boolean isClosed() throws SQLException {
return this.isClosed.get();
return isClosed;
}
@Override
public DatabaseMetaData getMetaData() throws SQLException {
return this.databaseMetaData;
if (isClosed())
throw new SQLException(CONNECTION_IS_CLOSED);
return this.metadata;
}
@Override
public void setReadOnly(boolean readOnly) throws SQLException {
throw new SQLFeatureNotSupportedException("transactions are not supported");
if (isClosed())
throw new SQLException(CONNECTION_IS_CLOSED);
// nothing to do
}
@Override
public boolean isReadOnly() throws SQLException {
return false;
if (isClosed())
throw new SQLException(CONNECTION_IS_CLOSED);
return true;
}
@Override
public void setCatalog(String catalog) throws SQLException {
if (isClosed())
throw new SQLException(CONNECTION_IS_CLOSED);
synchronized (RestfulConnection.class) {
this.database = catalog;
}
}
@Override
public String getCatalog() throws SQLException {
return null;
if (isClosed())
throw new SQLException(CONNECTION_IS_CLOSED);
return this.database;
}
@Override
public void setTransactionIsolation(int level) throws SQLException {
//transaction is not supported
throw new SQLFeatureNotSupportedException("transactions are not supported");
if (isClosed())
throw new SQLException(CONNECTION_IS_CLOSED);
switch (level) {
case Connection.TRANSACTION_NONE:
break;
case Connection.TRANSACTION_READ_UNCOMMITTED:
case Connection.TRANSACTION_READ_COMMITTED:
case Connection.TRANSACTION_REPEATABLE_READ:
case Connection.TRANSACTION_SERIALIZABLE:
throw new SQLFeatureNotSupportedException(TSDBConstants.UNSUPPORT_METHOD_EXCEPTIONZ_MSG);
default:
throw new SQLException(TSDBConstants.INVALID_VARIABLES);
}
}
/**
*
*/
@Override
public int getTransactionIsolation() throws SQLException {
if (isClosed())
throw new SQLException(CONNECTION_IS_CLOSED);
//Connection.TRANSACTION_NONE specifies that transactions are not supported.
return Connection.TRANSACTION_NONE;
}
@Override
public SQLWarning getWarnings() throws SQLException {
//TODO: getWarnings not implemented
if (isClosed())
throw new SQLException(CONNECTION_IS_CLOSED);
return null;
}
@Override
public void clearWarnings() throws SQLException {
throw new SQLFeatureNotSupportedException("clearWarnings not supported.");
if (isClosed())
throw new SQLException(CONNECTION_IS_CLOSED);
//nothing to do
}
@Override
public Statement createStatement(int resultSetType, int resultSetConcurrency) throws SQLException {
return null;
if (isClosed())
throw new SQLException(CONNECTION_IS_CLOSED);
if (resultSetType != ResultSet.TYPE_FORWARD_ONLY) {
throw new SQLFeatureNotSupportedException(TSDBConstants.UNSUPPORT_METHOD_EXCEPTIONZ_MSG);
}
if (resultSetConcurrency != ResultSet.CONCUR_READ_ONLY)
throw new SQLFeatureNotSupportedException(TSDBConstants.UNSUPPORT_METHOD_EXCEPTIONZ_MSG);
return createStatement();
}
@Override
public PreparedStatement prepareStatement(String sql, int resultSetType, int resultSetConcurrency) throws SQLException {
return null;
if (isClosed())
throw new SQLException(CONNECTION_IS_CLOSED);
if (resultSetType != ResultSet.TYPE_FORWARD_ONLY || resultSetConcurrency != ResultSet.CONCUR_READ_ONLY)
throw new SQLFeatureNotSupportedException(TSDBConstants.INVALID_VARIABLES);
return this.prepareStatement(sql);
}
@Override
public CallableStatement prepareCall(String sql, int resultSetType, int resultSetConcurrency) throws SQLException {
return null;
if (isClosed())
throw new SQLException(CONNECTION_IS_CLOSED);
if (resultSetType != ResultSet.TYPE_FORWARD_ONLY || resultSetConcurrency != ResultSet.CONCUR_READ_ONLY)
throw new SQLFeatureNotSupportedException(TSDBConstants.INVALID_VARIABLES);
throw new SQLFeatureNotSupportedException(TSDBConstants.UNSUPPORT_METHOD_EXCEPTIONZ_MSG);
}
@Override
public Map<String, Class<?>> getTypeMap() throws SQLException {
return null;
if (isClosed())
throw new SQLException(CONNECTION_IS_CLOSED);
synchronized (RestfulConnection.class) {
if (this.typeMap == null) {
this.typeMap = new HashMap<>();
}
return this.typeMap;
}
}
@Override
public void setTypeMap(Map<String, Class<?>> map) throws SQLException {
if (isClosed())
throw new SQLException(CONNECTION_IS_CLOSED);
synchronized (RestfulConnection.class) {
this.typeMap = map;
}
}
@Override
public void setHoldability(int holdability) throws SQLException {
if (isClosed())
throw new SQLException(CONNECTION_IS_CLOSED);
if (holdability != ResultSet.HOLD_CURSORS_OVER_COMMIT)
throw new SQLFeatureNotSupportedException(TSDBConstants.UNSUPPORT_METHOD_EXCEPTIONZ_MSG);
}
@Override
public int getHoldability() throws SQLException {
return 0;
if (isClosed())
throw new SQLException(CONNECTION_IS_CLOSED);
return ResultSet.HOLD_CURSORS_OVER_COMMIT;
}
@Override
public Savepoint setSavepoint() throws SQLException {
return null;
if (isClosed())
throw new SQLException(CONNECTION_IS_CLOSED);
if (getAutoCommit())
throw new SQLException(TSDBConstants.INVALID_VARIABLES);
//nothing to do
throw new SQLFeatureNotSupportedException(TSDBConstants.UNSUPPORT_METHOD_EXCEPTIONZ_MSG);
}
@Override
public Savepoint setSavepoint(String name) throws SQLException {
return null;
if (isClosed())
throw new SQLException(CONNECTION_IS_CLOSED);
if (getAutoCommit())
throw new SQLException(TSDBConstants.INVALID_VARIABLES);
//nothing to do
throw new SQLFeatureNotSupportedException(TSDBConstants.UNSUPPORT_METHOD_EXCEPTIONZ_MSG);
}
@Override
public void rollback(Savepoint savepoint) throws SQLException {
if (isClosed())
throw new SQLException(CONNECTION_IS_CLOSED);
if (getAutoCommit())
throw new SQLException(TSDBConstants.INVALID_VARIABLES);
//nothing to do
throw new SQLFeatureNotSupportedException(TSDBConstants.UNSUPPORT_METHOD_EXCEPTIONZ_MSG);
}
@Override
public void releaseSavepoint(Savepoint savepoint) throws SQLException {
if (isClosed())
throw new SQLException(CONNECTION_IS_CLOSED);
throw new SQLFeatureNotSupportedException(TSDBConstants.UNSUPPORT_METHOD_EXCEPTIONZ_MSG);
}
@Override
public Statement createStatement(int resultSetType, int resultSetConcurrency, int resultSetHoldability) throws SQLException {
return null;
if (resultSetHoldability != ResultSet.HOLD_CURSORS_OVER_COMMIT)
throw new SQLFeatureNotSupportedException(TSDBConstants.UNSUPPORT_METHOD_EXCEPTIONZ_MSG);
return createStatement(resultSetType, resultSetConcurrency);
}
@Override
public PreparedStatement prepareStatement(String sql, int resultSetType, int resultSetConcurrency, int resultSetHoldability) throws SQLException {
return null;
if (resultSetHoldability != ResultSet.HOLD_CURSORS_OVER_COMMIT)
throw new SQLFeatureNotSupportedException(TSDBConstants.UNSUPPORT_METHOD_EXCEPTIONZ_MSG);
return prepareStatement(sql, resultSetType, resultSetConcurrency);
}
@Override
public CallableStatement prepareCall(String sql, int resultSetType, int resultSetConcurrency, int resultSetHoldability) throws SQLException {
return null;
throw new SQLFeatureNotSupportedException(TSDBConstants.UNSUPPORT_METHOD_EXCEPTIONZ_MSG);
}
@Override
public PreparedStatement prepareStatement(String sql, int autoGeneratedKeys) throws SQLException {
return null;
throw new SQLFeatureNotSupportedException(TSDBConstants.UNSUPPORT_METHOD_EXCEPTIONZ_MSG);
}
@Override
public PreparedStatement prepareStatement(String sql, int[] columnIndexes) throws SQLException {
return null;
throw new SQLFeatureNotSupportedException(TSDBConstants.UNSUPPORT_METHOD_EXCEPTIONZ_MSG);
}
@Override
public PreparedStatement prepareStatement(String sql, String[] columnNames) throws SQLException {
return null;
throw new SQLFeatureNotSupportedException(TSDBConstants.UNSUPPORT_METHOD_EXCEPTIONZ_MSG);
}
@Override
public Clob createClob() throws SQLException {
//TODO: not supported
throw new SQLFeatureNotSupportedException();
throw new SQLFeatureNotSupportedException(TSDBConstants.UNSUPPORT_METHOD_EXCEPTIONZ_MSG);
}
@Override
public Blob createBlob() throws SQLException {
//TODO: not supported
throw new SQLFeatureNotSupportedException();
throw new SQLFeatureNotSupportedException(TSDBConstants.UNSUPPORT_METHOD_EXCEPTIONZ_MSG);
}
@Override
public NClob createNClob() throws SQLException {
//TODO: not supported
throw new SQLFeatureNotSupportedException();
throw new SQLFeatureNotSupportedException(TSDBConstants.UNSUPPORT_METHOD_EXCEPTIONZ_MSG);
}
@Override
public SQLXML createSQLXML() throws SQLException {
//TODO: not supported
throw new SQLFeatureNotSupportedException();
throw new SQLFeatureNotSupportedException(TSDBConstants.UNSUPPORT_METHOD_EXCEPTIONZ_MSG);
}
@Override
public boolean isValid(int timeout) throws SQLException {
return false;
if (timeout < 0)
throw new SQLException(TSDBConstants.INVALID_VARIABLES);
// TODO:
/* The driver shall submit a query on the connection or use some other mechanism that positively verifies
the connection is still valid when this method is called.*/
return !isClosed();
}
@Override
public void setClientInfo(String name, String value) throws SQLClientInfoException {
if (isClosed)
throw new SQLClientInfoException();
clientInfoProps.setProperty(name, value);
}
@Override
public void setClientInfo(Properties properties) throws SQLClientInfoException {
if (isClosed)
throw new SQLClientInfoException();
for (Enumeration<Object> enumer = properties.keys(); enumer.hasMoreElements(); ) {
String name = (String) enumer.nextElement();
clientInfoProps.put(name, properties.getProperty(name));
}
}
@Override
public String getClientInfo(String name) throws SQLException {
return null;
if (isClosed)
throw new SQLClientInfoException();
return clientInfoProps.getProperty(name);
}
@Override
public Properties getClientInfo() throws SQLException {
return null;
if (isClosed)
throw new SQLClientInfoException();
return clientInfoProps;
}
@Override
public Array createArrayOf(String typeName, Object[] elements) throws SQLException {
//TODO: not supported
throw new SQLFeatureNotSupportedException();
throw new SQLFeatureNotSupportedException(TSDBConstants.UNSUPPORT_METHOD_EXCEPTIONZ_MSG);
}
@Override
public Struct createStruct(String typeName, Object[] attributes) throws SQLException {
//TODO: not supported
throw new SQLFeatureNotSupportedException();
throw new SQLFeatureNotSupportedException(TSDBConstants.UNSUPPORT_METHOD_EXCEPTIONZ_MSG);
}
@Override
public void setSchema(String schema) throws SQLException {
if (isClosed())
throw new SQLException(CONNECTION_IS_CLOSED);
synchronized (RestfulConnection.class) {
this.database = schema;
}
}
@Override
public String getSchema() throws SQLException {
return null;
if (isClosed())
throw new SQLException(CONNECTION_IS_CLOSED);
return this.database;
}
@Override
public void abort(Executor executor) throws SQLException {
if (executor == null) {
throw new SQLException("Executor can not be null");
}
executor.execute(() -> {
try {
close();
} catch (SQLException e) {
e.printStackTrace();
}
});
}
@Override
public void setNetworkTimeout(Executor executor, int milliseconds) throws SQLException {
if (isClosed())
throw new SQLException(CONNECTION_IS_CLOSED);
throw new SQLFeatureNotSupportedException(TSDBConstants.UNSUPPORT_METHOD_EXCEPTIONZ_MSG);
}
@Override
public int getNetworkTimeout() throws SQLException {
if (isClosed())
throw new SQLException(CONNECTION_IS_CLOSED);
return 0;
}

View File

@ -33,7 +33,7 @@ public class RestfulDriver extends AbstractTaosDriver {
return null;
Properties props = parseURL(url, info);
String host = props.getProperty(TSDBDriver.PROPERTY_KEY_HOST, "localhost");
String host = props.getProperty(TSDBDriver.PROPERTY_KEY_HOST);
String port = props.getProperty(TSDBDriver.PROPERTY_KEY_PORT, "6041");
String database = props.containsKey(TSDBDriver.PROPERTY_KEY_DBNAME) ? props.getProperty(TSDBDriver.PROPERTY_KEY_DBNAME) : null;

View File

@ -2,13 +2,15 @@ package com.taosdata.jdbc.rs;
import java.sql.ResultSetMetaData;
import java.sql.SQLException;
import java.util.List;
import java.util.ArrayList;
public class RestfulResultSetMetaData implements ResultSetMetaData {
private List<String> fields;
private final String database;
private ArrayList<RestfulResultSet.Field> fields;
public RestfulResultSetMetaData(List<String> fields) {
public RestfulResultSetMetaData(String database, ArrayList<RestfulResultSet.Field> fields) {
this.database = database;
this.fields = fields;
}
@ -24,6 +26,7 @@ public class RestfulResultSetMetaData implements ResultSetMetaData {
@Override
public boolean isCaseSensitive(int column) throws SQLException {
//TODO
return false;
}
@ -39,7 +42,7 @@ public class RestfulResultSetMetaData implements ResultSetMetaData {
@Override
public int isNullable(int column) throws SQLException {
return 0;
return ResultSetMetaData.columnNullable;
}
@Override
@ -54,7 +57,7 @@ public class RestfulResultSetMetaData implements ResultSetMetaData {
@Override
public String getColumnLabel(int column) throws SQLException {
return fields.get(column - 1);
return fields.get(column - 1).name;
}
@Override
@ -64,7 +67,7 @@ public class RestfulResultSetMetaData implements ResultSetMetaData {
@Override
public String getSchemaName(int column) throws SQLException {
return null;
return this.database;
}
@Override
@ -84,7 +87,7 @@ public class RestfulResultSetMetaData implements ResultSetMetaData {
@Override
public String getCatalogName(int column) throws SQLException {
return null;
return this.database;
}
@Override

View File

@ -7,20 +7,60 @@ import com.taosdata.jdbc.rs.util.HttpClientPoolUtil;
import com.taosdata.jdbc.utils.SqlSyntaxValidator;
import java.sql.*;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.stream.Collectors;
public class RestfulStatement implements Statement {
private static final String STATEMENT_CLOSED = "Statement already closed.";
private boolean closed;
private String database;
private final RestfulConnection conn;
public RestfulStatement(RestfulConnection c, String database) {
this.conn = c;
private volatile RestfulResultSet resultSet;
private volatile int affectedRows;
private volatile boolean closeOnCompletion;
public RestfulStatement(RestfulConnection conn, String database) {
this.conn = conn;
this.database = database;
}
private String[] parseTableIdentifier(String sql) {
sql = sql.trim().toLowerCase();
String[] ret = null;
if (sql.contains("where"))
sql = sql.substring(0, sql.indexOf("where"));
if (sql.contains("interval"))
sql = sql.substring(0, sql.indexOf("interval"));
if (sql.contains("fill"))
sql = sql.substring(0, sql.indexOf("fill"));
if (sql.contains("sliding"))
sql = sql.substring(0, sql.indexOf("sliding"));
if (sql.contains("group by"))
sql = sql.substring(0, sql.indexOf("group by"));
if (sql.contains("order by"))
sql = sql.substring(0, sql.indexOf("order by"));
if (sql.contains("slimit"))
sql = sql.substring(0, sql.indexOf("slimit"));
if (sql.contains("limit"))
sql = sql.substring(0, sql.indexOf("limit"));
// parse
if (sql.contains("from")) {
sql = sql.substring(sql.indexOf("from") + 4).trim();
return Arrays.asList(sql.split(",")).stream()
.map(tableIdentifier -> {
tableIdentifier = tableIdentifier.trim();
if (tableIdentifier.contains(" "))
tableIdentifier = tableIdentifier.substring(0, tableIdentifier.indexOf(" "));
return tableIdentifier;
}).collect(Collectors.joining(",")).split(",");
}
return ret;
}
@Override
public ResultSet executeQuery(String sql) throws SQLException {
if (isClosed())
@ -29,43 +69,33 @@ public class RestfulStatement implements Statement {
throw new SQLException("not a select sql for executeQuery: " + sql);
final String url = "http://" + conn.getHost() + ":" + conn.getPort() + "/rest/sql";
// row data
String result = HttpClientPoolUtil.execute(url, sql);
String fields = "";
List<String> words = Arrays.asList(sql.split(" "));
if (words.get(0).equalsIgnoreCase("select")) {
int index = 0;
if (words.contains("from")) {
index = words.indexOf("from");
JSONObject resultJson = JSON.parseObject(result);
if (resultJson.getString("status").equals("error")) {
throw new SQLException(TSDBConstants.WrapErrMsg("SQL execution error: " + resultJson.getString("desc") + "\n" + "error code: " + resultJson.getString("code")));
}
// parse table name from sql
String[] tableIdentifiers = parseTableIdentifier(sql);
if (tableIdentifiers != null) {
List<JSONObject> fieldJsonList = new ArrayList<>();
for (String tableIdentifier : tableIdentifiers) {
// field meta
String fields = HttpClientPoolUtil.execute(url, "DESCRIBE " + tableIdentifier);
JSONObject fieldJson = JSON.parseObject(fields);
if (fieldJson.getString("status").equals("error")) {
throw new SQLException(TSDBConstants.WrapErrMsg("SQL execution error: " + fieldJson.getString("desc") + "\n" + "error code: " + fieldJson.getString("code")));
}
fieldJsonList.add(fieldJson);
}
if (words.contains("FROM")) {
index = words.indexOf("FROM");
}
fields = HttpClientPoolUtil.execute(url, "DESCRIBE " + words.get(index + 1));
this.resultSet = new RestfulResultSet(database, this, resultJson, fieldJsonList);
} else {
this.resultSet = new RestfulResultSet(database, this, resultJson);
}
JSONObject jsonObject = JSON.parseObject(result);
if (jsonObject.getString("status").equals("error")) {
throw new SQLException(TSDBConstants.WrapErrMsg("SQL execution error: " +
jsonObject.getString("desc") + "\n" +
"error code: " + jsonObject.getString("code")));
}
String dataStr = jsonObject.getString("data");
if ("use".equalsIgnoreCase(fields.split(" ")[0])) {
return new RestfulResultSet(dataStr, "");
}
JSONObject jsonField = JSON.parseObject(fields);
if (jsonField == null) {
return new RestfulResultSet(dataStr, "");
}
if (jsonField.getString("status").equals("error")) {
throw new SQLException(TSDBConstants.WrapErrMsg("SQL execution error: " +
jsonField.getString("desc") + "\n" +
"error code: " + jsonField.getString("code")));
}
String fieldData = jsonField.getString("data");
return new RestfulResultSet(dataStr, fieldData);
this.affectedRows = 0;
return resultSet;
}
@Override
@ -78,77 +108,103 @@ public class RestfulStatement implements Statement {
if (this.database == null)
throw new SQLException("Database not specified or available");
final String url = "http://" + conn.getHost() + ":" + conn.getPort() + "/rest/sql";
final String url = "http://" + conn.getHost().trim() + ":" + conn.getPort() + "/rest/sql";
HttpClientPoolUtil.execute(url, "use " + conn.getDatabase());
String result = HttpClientPoolUtil.execute(url, sql);
JSONObject jsonObject = JSON.parseObject(result);
if (jsonObject.getString("status").equals("error")) {
throw new SQLException(TSDBConstants.WrapErrMsg("SQL execution error: " +
jsonObject.getString("desc") + "\n" +
"error code: " + jsonObject.getString("code")));
throw new SQLException(TSDBConstants.WrapErrMsg("SQL execution error: " + jsonObject.getString("desc") + "\n" + "error code: " + jsonObject.getString("code")));
}
return Integer.parseInt(jsonObject.getString("rows"));
this.resultSet = null;
this.affectedRows = Integer.parseInt(jsonObject.getString("rows"));
return this.affectedRows;
}
@Override
public void close() throws SQLException {
this.closed = true;
synchronized (RestfulStatement.class) {
if (!isClosed())
this.closed = true;
}
}
@Override
public int getMaxFieldSize() throws SQLException {
return 0;
if (isClosed())
throw new SQLException(STATEMENT_CLOSED);
return TSDBConstants.maxFieldSize;
}
@Override
public void setMaxFieldSize(int max) throws SQLException {
if (isClosed())
throw new SQLException(STATEMENT_CLOSED);
if (max < 0)
throw new SQLException(TSDBConstants.INVALID_VARIABLES);
// nothing to do
}
@Override
public int getMaxRows() throws SQLException {
if (isClosed())
throw new SQLException(STATEMENT_CLOSED);
return 0;
}
@Override
public void setMaxRows(int max) throws SQLException {
if (isClosed())
throw new SQLException(STATEMENT_CLOSED);
if (max < 0)
throw new SQLException(TSDBConstants.INVALID_VARIABLES);
// nothing to do
}
@Override
public void setEscapeProcessing(boolean enable) throws SQLException {
if (isClosed())
throw new SQLException(RestfulStatement.STATEMENT_CLOSED);
}
@Override
public int getQueryTimeout() throws SQLException {
if (isClosed())
throw new SQLException(STATEMENT_CLOSED);
return 0;
}
@Override
public void setQueryTimeout(int seconds) throws SQLException {
if (isClosed())
throw new SQLException(STATEMENT_CLOSED);
if (seconds < 0)
throw new SQLException(TSDBConstants.INVALID_VARIABLES);
}
@Override
public void cancel() throws SQLException {
throw new SQLException(TSDBConstants.UNSUPPORT_METHOD_EXCEPTIONZ_MSG);
}
@Override
public SQLWarning getWarnings() throws SQLException {
//TODO: getWarnings not Implemented
if (isClosed())
throw new SQLException(STATEMENT_CLOSED);
return null;
}
@Override
public void clearWarnings() throws SQLException {
// nothing to do
if (isClosed())
throw new SQLException(STATEMENT_CLOSED);
}
@Override
public void setCursorName(String name) throws SQLException {
if (isClosed())
throw new SQLException(RestfulStatement.STATEMENT_CLOSED);
throw new SQLException(TSDBConstants.UNSUPPORT_METHOD_EXCEPTIONZ_MSG);
}
@Override
@ -159,133 +215,181 @@ public class RestfulStatement implements Statement {
//如果执行了use操作应该将当前Statement的catalog设置为新的database
if (SqlSyntaxValidator.isUseSql(sql)) {
this.database = sql.trim().replace("use", "").trim();
this.conn.setCatalog(this.database);
}
if (this.database == null)
throw new SQLException("Database not specified or available");
final String url = "http://" + conn.getHost() + ":" + conn.getPort() + "/rest/sql";
// use database
HttpClientPoolUtil.execute(url, "use " + conn.getDatabase());
// execute sql
String result = HttpClientPoolUtil.execute(url, sql);
// parse result
JSONObject jsonObject = JSON.parseObject(result);
if (jsonObject.getString("status").equals("error")) {
throw new SQLException(TSDBConstants.WrapErrMsg("SQL execution error: " +
jsonObject.getString("desc") + "\n" +
"error code: " + jsonObject.getString("code")));
if (SqlSyntaxValidator.isSelectSql(sql)) {
executeQuery(sql);
} else if (SqlSyntaxValidator.isShowSql(sql) || SqlSyntaxValidator.isDescribeSql(sql)) {
final String url = "http://" + conn.getHost().trim() + ":" + conn.getPort() + "/rest/sql";
if (!SqlSyntaxValidator.isShowDatabaseSql(sql)) {
HttpClientPoolUtil.execute(url, "use " + conn.getDatabase());
}
String result = HttpClientPoolUtil.execute(url, sql);
JSONObject resultJson = JSON.parseObject(result);
if (resultJson.getString("status").equals("error")) {
throw new SQLException(TSDBConstants.WrapErrMsg("SQL execution error: " + resultJson.getString("desc") + "\n" + "error code: " + resultJson.getString("code")));
}
this.resultSet = new RestfulResultSet(database, this, resultJson);
} else {
executeUpdate(sql);
}
return true;
}
@Override
public ResultSet getResultSet() throws SQLException {
return null;
if (isClosed())
throw new SQLException(STATEMENT_CLOSED);
return resultSet;
}
@Override
public int getUpdateCount() throws SQLException {
return 0;
if (isClosed()) {
throw new SQLException("Invalid method call on a closed statement.");
}
return this.affectedRows;
}
@Override
public boolean getMoreResults() throws SQLException {
return false;
return getMoreResults(CLOSE_CURRENT_RESULT);
}
@Override
public void setFetchDirection(int direction) throws SQLException {
if (direction != ResultSet.FETCH_FORWARD && direction != ResultSet.FETCH_REVERSE && direction != ResultSet.FETCH_UNKNOWN)
throw new SQLException(TSDBConstants.INVALID_VARIABLES);
this.resultSet.setFetchDirection(direction);
}
@Override
public int getFetchDirection() throws SQLException {
return 0;
return this.resultSet.getFetchDirection();
}
@Override
public void setFetchSize(int rows) throws SQLException {
if (isClosed())
throw new SQLException(STATEMENT_CLOSED);
if (rows < 0)
throw new SQLException(TSDBConstants.INVALID_VARIABLES);
//nothing to do
}
@Override
public int getFetchSize() throws SQLException {
if (isClosed())
throw new SQLException(STATEMENT_CLOSED);
return 0;
}
@Override
public int getResultSetConcurrency() throws SQLException {
return 0;
if (isClosed())
throw new SQLException(STATEMENT_CLOSED);
return this.resultSet.getConcurrency();
}
@Override
public int getResultSetType() throws SQLException {
return 0;
if (isClosed())
throw new SQLException(STATEMENT_CLOSED);
return this.resultSet.getType();
}
@Override
public void addBatch(String sql) throws SQLException {
if (isClosed())
throw new SQLException(STATEMENT_CLOSED);
//TODO:
}
@Override
public void clearBatch() throws SQLException {
//TODO:
}
@Override
public int[] executeBatch() throws SQLException {
//TODO:
return new int[0];
}
@Override
public Connection getConnection() throws SQLException {
return null;
if (isClosed())
throw new SQLException(STATEMENT_CLOSED);
return this.conn;
}
@Override
public boolean getMoreResults(int current) throws SQLException {
if (isClosed())
throw new SQLException(STATEMENT_CLOSED);
if (resultSet == null)
return false;
// switch (current) {
// case CLOSE_CURRENT_RESULT:
// resultSet.close();
// break;
// case KEEP_CURRENT_RESULT:
// break;
// case CLOSE_ALL_RESULTS:
// resultSet.close();
// break;
// default:
// throw new SQLException(TSDBConstants.INVALID_VARIABLES);
// }
// return next;
return false;
}
@Override
public ResultSet getGeneratedKeys() throws SQLException {
return null;
throw new SQLFeatureNotSupportedException(TSDBConstants.UNSUPPORT_METHOD_EXCEPTIONZ_MSG);
}
@Override
public int executeUpdate(String sql, int autoGeneratedKeys) throws SQLException {
return 0;
throw new SQLFeatureNotSupportedException(TSDBConstants.UNSUPPORT_METHOD_EXCEPTIONZ_MSG);
}
@Override
public int executeUpdate(String sql, int[] columnIndexes) throws SQLException {
return 0;
throw new SQLFeatureNotSupportedException(TSDBConstants.UNSUPPORT_METHOD_EXCEPTIONZ_MSG);
}
@Override
public int executeUpdate(String sql, String[] columnNames) throws SQLException {
return 0;
throw new SQLFeatureNotSupportedException(TSDBConstants.UNSUPPORT_METHOD_EXCEPTIONZ_MSG);
}
@Override
public boolean execute(String sql, int autoGeneratedKeys) throws SQLException {
return false;
throw new SQLFeatureNotSupportedException(TSDBConstants.UNSUPPORT_METHOD_EXCEPTIONZ_MSG);
}
@Override
public boolean execute(String sql, int[] columnIndexes) throws SQLException {
return false;
throw new SQLFeatureNotSupportedException(TSDBConstants.UNSUPPORT_METHOD_EXCEPTIONZ_MSG);
}
@Override
public boolean execute(String sql, String[] columnNames) throws SQLException {
return false;
throw new SQLFeatureNotSupportedException(TSDBConstants.UNSUPPORT_METHOD_EXCEPTIONZ_MSG);
}
@Override
public int getResultSetHoldability() throws SQLException {
return 0;
if (isClosed())
throw new SQLException(STATEMENT_CLOSED);
return this.resultSet.getHoldability();
}
@Override
@ -295,22 +399,30 @@ public class RestfulStatement implements Statement {
@Override
public void setPoolable(boolean poolable) throws SQLException {
if (isClosed())
throw new SQLException(STATEMENT_CLOSED);
//nothing to do
}
@Override
public boolean isPoolable() throws SQLException {
if (isClosed())
throw new SQLException(STATEMENT_CLOSED);
return false;
}
@Override
public void closeOnCompletion() throws SQLException {
if (isClosed())
throw new SQLException(STATEMENT_CLOSED);
this.closeOnCompletion = true;
}
@Override
public boolean isCloseOnCompletion() throws SQLException {
return false;
if (isClosed())
throw new SQLException(STATEMENT_CLOSED);
return this.closeOnCompletion;
}
@Override

View File

@ -17,6 +17,8 @@ import org.apache.http.protocol.HTTP;
import org.apache.http.protocol.HttpContext;
import org.apache.http.util.EntityUtils;
import java.nio.charset.Charset;
public class HttpClientPoolUtil {
public static PoolingHttpClientConnectionManager cm = null;
@ -94,7 +96,8 @@ public class HttpClientPoolUtil {
initPools();
}
method = (HttpEntityEnclosingRequestBase) getRequest(uri, HttpPost.METHOD_NAME, DEFAULT_CONTENT_TYPE, 0);
method.setEntity(new StringEntity(data));
method.setHeader("Content-Type", "text/plain");
method.setEntity(new StringEntity(data, Charset.forName("UTF-8")));
HttpContext context = HttpClientContext.create();
CloseableHttpResponse httpResponse = httpClient.execute(method, context);
httpEntity = httpResponse.getEntity();
@ -105,26 +108,13 @@ public class HttpClientPoolUtil {
if (method != null) {
method.abort();
}
// e.printStackTrace();
// logger.error("execute post request exception, url:" + uri + ", exception:" + e.toString()
// + ", cost time(ms):" + (System.currentTimeMillis() - startTime));
new Exception("execute post request exception, url:"
+ uri + ", exception:" + e.toString() +
", cost time(ms):" + (System.currentTimeMillis() - startTime))
.printStackTrace();
new Exception("execute post request exception, url:" + uri + ", exception:" + e.toString() + ", cost time(ms):" + (System.currentTimeMillis() - startTime)).printStackTrace();
} finally {
if (httpEntity != null) {
try {
EntityUtils.consumeQuietly(httpEntity);
} catch (Exception e) {
// e.printStackTrace();
// logger.error("close response exception, url:" + uri + ", exception:" + e.toString()
// + ", cost time(ms):" + (System.currentTimeMillis() - startTime));
new Exception(
"close response exception, url:" + uri +
", exception:" + e.toString()
+ ", cost time(ms):" + (System.currentTimeMillis() - startTime))
.printStackTrace();
new Exception("close response exception, url:" + uri + ", exception:" + e.toString() + ", cost time(ms):" + (System.currentTimeMillis() - startTime)).printStackTrace();
}
}
}

View File

@ -15,14 +15,12 @@
package com.taosdata.jdbc.utils;
import com.taosdata.jdbc.TSDBConnection;
import com.taosdata.jdbc.TSDBJNIConnector;
import java.sql.Connection;
import java.sql.SQLException;
public class SqlSyntaxValidator {
private static final String[] updateSQL = {"insert", "update", "delete", "create", "alter", "drop", "show", "describe", "use"};
private static final String[] updateSQL = {"insert", "update", "delete", "create", "alter", "drop", "show", "describe", "use", "import"};
private static final String[] querySQL = {"select"};
private TSDBConnection tsdbConnection;
@ -31,22 +29,6 @@ public class SqlSyntaxValidator {
this.tsdbConnection = (TSDBConnection) connection;
}
public boolean validateSqlSyntax(String sql) throws SQLException {
boolean res = false;
if (tsdbConnection == null || tsdbConnection.isClosed()) {
throw new SQLException("invalid connection");
} else {
TSDBJNIConnector jniConnector = tsdbConnection.getConnection();
if (jniConnector == null) {
throw new SQLException("jniConnector is null");
} else {
res = jniConnector.validateCreateTableSql(sql);
}
}
return res;
}
public static boolean isValidForExecuteUpdate(String sql) {
for (String prefix : updateSQL) {
if (sql.trim().toLowerCase().startsWith(prefix))
@ -56,18 +38,28 @@ public class SqlSyntaxValidator {
}
public static boolean isUseSql(String sql) {
return sql.trim().toLowerCase().startsWith(updateSQL[8]) || sql.trim().toLowerCase().matches("create\\s*database.*") || sql.toLowerCase().toLowerCase().matches("drop\\s*database.*");
return sql.trim().toLowerCase().startsWith("use") || sql.trim().toLowerCase().matches("create\\s*database.*") || sql.toLowerCase().toLowerCase().matches("drop\\s*database.*");
}
public static boolean isUpdateSql(String sql) {
return sql.trim().toLowerCase().startsWith(updateSQL[1]);
public static boolean isShowSql(String sql) {
return sql.trim().toLowerCase().startsWith("show");
}
public static boolean isDescribeSql(String sql) {
return sql.trim().toLowerCase().startsWith("describe");
}
public static boolean isInsertSql(String sql) {
return sql.trim().toLowerCase().startsWith(updateSQL[0]);
return sql.trim().toLowerCase().startsWith("insert") || sql.trim().toLowerCase().startsWith("import");
}
public static boolean isSelectSql(String sql) {
return sql.trim().toLowerCase().startsWith(querySQL[0]);
return sql.trim().toLowerCase().startsWith("select");
}
public static boolean isShowDatabaseSql(String sql) {
return sql.trim().toLowerCase().matches("show\\s*databases");
}
}