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TDengine
提交 4dff524a 编写于 作者: H Haojun Liao
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[TD-225] refactor jdbc driver

上级 59c32df4
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Showing with 136 addition and 133 deletion
src/connector/jdbc/src/main/java/com/taosdata/jdbc/ColumnMetaData.java
浏览文件 @ 4dff524a
......@@ -16,10 +16,10 @@ package com.taosdata.jdbc;
public class ColumnMetaData {
int colType = 0;
String colName = null;
int colSize = -1;
int colIndex = 0;
private int colType = 0;
private String colName = null;
private int colSize = -1;
private int colIndex = 0;
public int getColSize() {
return colSize;
......
src/connector/jdbc/src/main/java/com/taosdata/jdbc/TSDBDriver.java
浏览文件 @ 4dff524a
......@@ -86,6 +86,11 @@ public class TSDBDriver extends AbstractTaosDriver {
*/
public static final String PROPERTY_KEY_CHARSET = "charset";
/**
* fetch data from native function in a batch model
*/
public static final String PROPERTY_KEY_BATCH_LOAD = "batch";
private TSDBDatabaseMetaData dbMetaData = null;
static {
......@@ -172,26 +177,21 @@ public class TSDBDriver extends AbstractTaosDriver {
url = url.substring(0, index);
StringTokenizer queryParams = new StringTokenizer(paramString, "&");
while (queryParams.hasMoreElements()) {
String parameterValuePair = queryParams.nextToken();
int indexOfEqual = parameterValuePair.indexOf("=");
String parameter = null;
String value = null;
if (indexOfEqual != -1) {
parameter = parameterValuePair.substring(0, indexOfEqual);
if (indexOfEqual + 1 < parameterValuePair.length()) {
value = parameterValuePair.substring(indexOfEqual + 1);
}
}
if ((value != null && value.length() > 0) && (parameter != null && parameter.length() > 0)) {
urlProps.setProperty(parameter, value);
String oneToken = queryParams.nextToken();
String[] pair = oneToken.split("=");
if ((pair[0] != null && pair[0].trim().length() > 0) && (pair[1] != null && pair[1].trim().length() > 0)) {
urlProps.setProperty(pair[0].trim(), pair[1].trim());
}
}
}
// parse Product Name
String dbProductName = url.substring(0, beginningOfSlashes);
dbProductName = dbProductName.substring(dbProductName.indexOf(":") + 1);
dbProductName = dbProductName.substring(0, dbProductName.indexOf(":"));
// parse dbname
// parse database name
url = url.substring(beginningOfSlashes + 2);
int indexOfSlash = url.indexOf("/");
if (indexOfSlash != -1) {
......@@ -200,6 +200,7 @@ public class TSDBDriver extends AbstractTaosDriver {
}
url = url.substring(0, indexOfSlash);
}
// parse port
int indexOfColon = url.indexOf(":");
if (indexOfColon != -1) {
......@@ -208,9 +209,11 @@ public class TSDBDriver extends AbstractTaosDriver {
}
url = url.substring(0, indexOfColon);
}
if (url != null && url.length() > 0 && url.trim().length() > 0) {
urlProps.setProperty(TSDBDriver.PROPERTY_KEY_HOST, url);
}
this.dbMetaData = new TSDBDatabaseMetaData(dbProductName, urlForMeta, urlProps.getProperty(TSDBDriver.PROPERTY_KEY_USER));
return urlProps;
}
......
src/connector/jdbc/src/main/java/com/taosdata/jdbc/TSDBResultSet.java
浏览文件 @ 4dff524a
......@@ -49,7 +49,7 @@ public class TSDBResultSet implements ResultSet {
private TSDBResultSetRowData rowData;
private TSDBResultSetBlockData blockData;
private boolean blockwiseFetch = false;
private boolean batchFetch = false;
private boolean lastWasNull = false;
private final int COLUMN_INDEX_START_VALUE = 1;
......@@ -71,8 +71,12 @@ public class TSDBResultSet implements ResultSet {
this.resultSetPointer = resultSetPointer;
}
public void setBlockWiseFetch(boolean fetchBlock) {
this.blockwiseFetch = fetchBlock;
public void setBatchFetch(boolean batchFetch) {
this.batchFetch = batchFetch;
}
public Boolean getBatchFetch() {
return this.batchFetch;
}
public List<ColumnMetaData> getColumnMetaDataList() {
......@@ -102,8 +106,8 @@ public class TSDBResultSet implements ResultSet {
public TSDBResultSet() {
}
public TSDBResultSet(TSDBJNIConnector connecter, long resultSetPointer) throws SQLException {
this.jniConnector = connecter;
public TSDBResultSet(TSDBJNIConnector connector, long resultSetPointer) throws SQLException {
this.jniConnector = connector;
this.resultSetPointer = resultSetPointer;
int code = this.jniConnector.getSchemaMetaData(this.resultSetPointer, this.columnMetaDataList);
if (code == TSDBConstants.JNI_CONNECTION_NULL) {
......@@ -127,13 +131,13 @@ public class TSDBResultSet implements ResultSet {
}
public boolean next() throws SQLException {
if (this.blockwiseFetch) {
if (this.getBatchFetch()) {
if (this.blockData.forward()) {
return true;
}
int code = this.jniConnector.fetchBlock(this.resultSetPointer, this.blockData);
this.blockData.resetCursor();
this.blockData.reset();
if (code == TSDBConstants.JNI_CONNECTION_NULL) {
throw new SQLException(TSDBConstants.FixErrMsg(TSDBConstants.JNI_CONNECTION_NULL));
......@@ -185,7 +189,7 @@ public class TSDBResultSet implements ResultSet {
String res = null;
int colIndex = getTrueColumnIndex(columnIndex);
if (!this.blockwiseFetch) {
if (!this.getBatchFetch()) {
this.lastWasNull = this.rowData.wasNull(colIndex);
if (!lastWasNull) {
res = this.rowData.getString(colIndex, this.columnMetaDataList.get(colIndex).getColType());
......@@ -200,7 +204,7 @@ public class TSDBResultSet implements ResultSet {
boolean res = false;
int colIndex = getTrueColumnIndex(columnIndex);
if (!this.blockwiseFetch) {
if (!this.getBatchFetch()) {
this.lastWasNull = this.rowData.wasNull(colIndex);
if (!lastWasNull) {
res = this.rowData.getBoolean(colIndex, this.columnMetaDataList.get(colIndex).getColType());
......@@ -216,7 +220,7 @@ public class TSDBResultSet implements ResultSet {
byte res = 0;
int colIndex = getTrueColumnIndex(columnIndex);
if (!this.blockwiseFetch) {
if (!this.getBatchFetch()) {
this.lastWasNull = this.rowData.wasNull(colIndex);
if (!lastWasNull) {
res = (byte) this.rowData.getInt(colIndex, this.columnMetaDataList.get(colIndex).getColType());
......@@ -231,7 +235,7 @@ public class TSDBResultSet implements ResultSet {
short res = 0;
int colIndex = getTrueColumnIndex(columnIndex);
if (!this.blockwiseFetch) {
if (!this.getBatchFetch()) {
this.lastWasNull = this.rowData.wasNull(colIndex);
if (!lastWasNull) {
res = (short) this.rowData.getInt(colIndex, this.columnMetaDataList.get(colIndex).getColType());
......@@ -246,7 +250,7 @@ public class TSDBResultSet implements ResultSet {
int res = 0;
int colIndex = getTrueColumnIndex(columnIndex);
if (!this.blockwiseFetch) {
if (!this.getBatchFetch()) {
this.lastWasNull = this.rowData.wasNull(colIndex);
if (!lastWasNull) {
res = this.rowData.getInt(colIndex, this.columnMetaDataList.get(colIndex).getColType());
......@@ -262,7 +266,7 @@ public class TSDBResultSet implements ResultSet {
long res = 0l;
int colIndex = getTrueColumnIndex(columnIndex);
if (!this.blockwiseFetch) {
if (!this.getBatchFetch()) {
this.lastWasNull = this.rowData.wasNull(colIndex);
if (!lastWasNull) {
res = this.rowData.getLong(colIndex, this.columnMetaDataList.get(colIndex).getColType());
......@@ -277,7 +281,7 @@ public class TSDBResultSet implements ResultSet {
float res = 0;
int colIndex = getTrueColumnIndex(columnIndex);
if (!this.blockwiseFetch) {
if (!this.getBatchFetch()) {
this.lastWasNull = this.rowData.wasNull(colIndex);
if (!lastWasNull) {
res = this.rowData.getFloat(colIndex, this.columnMetaDataList.get(colIndex).getColType());
......@@ -292,7 +296,7 @@ public class TSDBResultSet implements ResultSet {
double res = 0;
int colIndex = getTrueColumnIndex(columnIndex);
if (!this.blockwiseFetch) {
if (!this.getBatchFetch()) {
this.lastWasNull = this.rowData.wasNull(colIndex);
if (!lastWasNull) {
res = this.rowData.getDouble(colIndex, this.columnMetaDataList.get(colIndex).getColType());
......@@ -334,7 +338,7 @@ public class TSDBResultSet implements ResultSet {
Timestamp res = null;
int colIndex = getTrueColumnIndex(columnIndex);
if (!this.blockwiseFetch) {
if (!this.getBatchFetch()) {
this.lastWasNull = this.rowData.wasNull(colIndex);
if (!lastWasNull) {
res = this.rowData.getTimestamp(colIndex);
......@@ -454,7 +458,7 @@ public class TSDBResultSet implements ResultSet {
public Object getObject(int columnIndex) throws SQLException {
int colIndex = getTrueColumnIndex(columnIndex);
if (!this.blockwiseFetch) {
if (!this.getBatchFetch()) {
this.lastWasNull = this.rowData.wasNull(colIndex);
return this.rowData.get(colIndex);
} else {
......@@ -491,7 +495,7 @@ public class TSDBResultSet implements ResultSet {
public BigDecimal getBigDecimal(int columnIndex) throws SQLException {
int colIndex = getTrueColumnIndex(columnIndex);
if (!this.blockwiseFetch) {
if (!this.getBatchFetch()) {
this.lastWasNull = this.rowData.wasNull(colIndex);
return new BigDecimal(this.rowData.getLong(colIndex, this.columnMetaDataList.get(colIndex).getColType()));
} else {
......
src/connector/jdbc/src/main/java/com/taosdata/jdbc/TSDBResultSetBlockData.java
浏览文件 @ 4dff524a
......@@ -56,13 +56,6 @@ public class TSDBResultSetBlockData {
if (this.numOfCols == 0) {
return;
}
this.colData = new ArrayList<Object>(numOfCols);
this.colData.addAll(Collections.nCopies(this.numOfCols, null));
}
public boolean wasNull(int col) {
return colData.get(col) == null;
}
public int getNumOfRows() {
......@@ -82,20 +75,19 @@ public class TSDBResultSetBlockData {
this.clear();
}
public void setColumnData(int col, byte val) {
this.colData.set(col, val);
}
public boolean hasMore() {
return this.rowIndex < this.numOfRows;
}
public boolean forward() {
this.rowIndex++;
return (this.rowIndex < this.numOfRows);
if (this.rowIndex > this.numOfRows) {
return false;
}
public void resetCursor() {
return ((++this.rowIndex) < this.numOfRows);
}
public void reset() {
this.rowIndex = 0;
}
......@@ -172,71 +164,75 @@ public class TSDBResultSetBlockData {
}
}
class NullType {
public String toString() {
return new String("null");
}
}
/**
* The original type may not be a string type, but will be converted to by
* calling this method
*
* @param col column index
* @return
* @throws SQLException
*/
public String getString(int col) throws SQLException {
Object obj = get(col);
if (obj == null) {
return new NullType().toString();
}
private static class NullType {
private static final byte NULL_BOOL_VAL = 0x2;
private static final String NULL_STR = "null";
return obj.toString();
public String toString() {
return NullType.NULL_STR;
}
private boolean isBooleanNull(byte val) {
return val == 0x2;
public static boolean isBooleanNull(byte val) {
return val == NullType.NULL_BOOL_VAL;
}
private boolean isTinyIntNull(byte val) {
return val == 0x80;
private static boolean isTinyIntNull(byte val) {
return val == Byte.MIN_VALUE;
}
private boolean isSmallIntNull(short val) {
return val == 0x8000;
private static boolean isSmallIntNull(short val) {
return val == Short.MIN_VALUE;
}
private boolean isIntNull(int val) {
return val == 0x80000000L;
private static boolean isIntNull(int val) {
return val == Integer.MIN_VALUE;
}
private boolean isBigIntNull(long val) {
return val == 0x8000000000000000L;
private static boolean isBigIntNull(long val) {
return val == Long.MIN_VALUE;
}
private boolean isFloatNull(float val) {
private static boolean isFloatNull(float val) {
return Float.isNaN(val);
}
private boolean isDoubleNull(double val) {
private static boolean isDoubleNull(double val) {
return Double.isNaN(val);
}
private boolean isBinaryNull(byte[] val, int length) {
if (length != 1) {
private static boolean isBinaryNull(byte[] val, int length) {
if (length != Byte.BYTES) {
return false;
}
return val[0] == 0xFF;
}
private boolean isNcharNull(byte[] val, int length) {
if (length != 4) {
private static boolean isNcharNull(byte[] val, int length) {
if (length != Integer.BYTES) {
return false;
}
return (val[0] & val[1] & val[2] & val[3]) == 0xFF ;
return (val[0] & val[1] & val[2] & val[3]) == 0xFF;
}
}
/**
* The original type may not be a string type, but will be converted to by
* calling this method
*
* @param col column index
* @return
* @throws SQLException
*/
public String getString(int col) throws SQLException {
Object obj = get(col);
if (obj == null) {
return new NullType().toString();
}
return obj.toString();
}
public int getInt(int col) {
......@@ -284,16 +280,16 @@ public class TSDBResultSetBlockData {
case TSDBConstants.TSDB_DATA_TYPE_TINYINT:
case TSDBConstants.TSDB_DATA_TYPE_SMALLINT:
case TSDBConstants.TSDB_DATA_TYPE_INT: {
return ((int) obj == 0L)? Boolean.FALSE:Boolean.TRUE;
return ((int) obj == 0L) ? Boolean.FALSE : Boolean.TRUE;
}
case TSDBConstants.TSDB_DATA_TYPE_BIGINT:
case TSDBConstants.TSDB_DATA_TYPE_TIMESTAMP: {
return (((Long) obj) == 0L)? Boolean.FALSE:Boolean.TRUE;
return (((Long) obj) == 0L) ? Boolean.FALSE : Boolean.TRUE;
}
case TSDBConstants.TSDB_DATA_TYPE_FLOAT:
case TSDBConstants.TSDB_DATA_TYPE_DOUBLE: {
return (((Double) obj) == 0)? Boolean.FALSE:Boolean.TRUE;
return (((Double) obj) == 0) ? Boolean.FALSE : Boolean.TRUE;
}
case TSDBConstants.TSDB_DATA_TYPE_NCHAR:
......@@ -395,7 +391,7 @@ public class TSDBResultSetBlockData {
ByteBuffer bb = (ByteBuffer) this.colData.get(col);
byte val = bb.get(this.rowIndex);
if (isBooleanNull(val)) {
if (NullType.isBooleanNull(val)) {
return null;
}
......@@ -406,7 +402,7 @@ public class TSDBResultSetBlockData {
ByteBuffer bb = (ByteBuffer) this.colData.get(col);
byte val = bb.get(this.rowIndex);
if (isTinyIntNull(val)) {
if (NullType.isTinyIntNull(val)) {
return null;
}
......@@ -416,7 +412,7 @@ public class TSDBResultSetBlockData {
case TSDBConstants.TSDB_DATA_TYPE_SMALLINT: {
ShortBuffer sb = (ShortBuffer) this.colData.get(col);
short val = sb.get(this.rowIndex);
if (isSmallIntNull(val)) {
if (NullType.isSmallIntNull(val)) {
return null;
}
......@@ -426,7 +422,7 @@ public class TSDBResultSetBlockData {
case TSDBConstants.TSDB_DATA_TYPE_INT: {
IntBuffer ib = (IntBuffer) this.colData.get(col);
int val = ib.get(this.rowIndex);
if (isIntNull(val)) {
if (NullType.isIntNull(val)) {
return null;
}
......@@ -437,7 +433,7 @@ public class TSDBResultSetBlockData {
case TSDBConstants.TSDB_DATA_TYPE_BIGINT: {
LongBuffer lb = (LongBuffer) this.colData.get(col);
long val = lb.get(this.rowIndex);
if (isBigIntNull(val)) {
if (NullType.isBigIntNull(val)) {
return null;
}
......@@ -447,7 +443,7 @@ public class TSDBResultSetBlockData {
case TSDBConstants.TSDB_DATA_TYPE_FLOAT: {
FloatBuffer fb = (FloatBuffer) this.colData.get(col);
float val = fb.get(this.rowIndex);
if (isFloatNull(val)) {
if (NullType.isFloatNull(val)) {
return null;
}
......@@ -457,7 +453,7 @@ public class TSDBResultSetBlockData {
case TSDBConstants.TSDB_DATA_TYPE_DOUBLE: {
DoubleBuffer lb = (DoubleBuffer) this.colData.get(col);
double val = lb.get(this.rowIndex);
if (isDoubleNull(val)) {
if (NullType.isDoubleNull(val)) {
return null;
}
......@@ -472,7 +468,7 @@ public class TSDBResultSetBlockData {
byte[] dest = new byte[length];
bb.get(dest, 0, length);
if (isBinaryNull(dest, length)) {
if (NullType.isBinaryNull(dest, length)) {
return null;
}
......@@ -487,7 +483,7 @@ public class TSDBResultSetBlockData {
byte[] dest = new byte[length];
bb.get(dest, 0, length);
if (isNcharNull(dest, length)) {
if (NullType.isNcharNull(dest, length)) {
return null;
}
......
src/connector/jdbc/src/main/java/com/taosdata/jdbc/TSDBStatement.java
浏览文件 @ 4dff524a
......@@ -19,7 +19,7 @@ import java.util.ArrayList;
import java.util.List;
public class TSDBStatement implements Statement {
private TSDBJNIConnector connecter = null;
private TSDBJNIConnector connector = null;
/**
* To store batched commands
......@@ -45,9 +45,9 @@ public class TSDBStatement implements Statement {
this.connection = connection;
}
TSDBStatement(TSDBConnection connection, TSDBJNIConnector connecter) {
TSDBStatement(TSDBConnection connection, TSDBJNIConnector connector) {
this.connection = connection;
this.connecter = connecter;
this.connector = connector;
this.isClosed = false;
}
......@@ -65,27 +65,27 @@ public class TSDBStatement implements Statement {
}
// TODO make sure it is not a update query
pSql = this.connecter.executeQuery(sql);
pSql = this.connector.executeQuery(sql);
long resultSetPointer = this.connecter.getResultSet();
long resultSetPointer = this.connector.getResultSet();
if (resultSetPointer == TSDBConstants.JNI_CONNECTION_NULL) {
this.connecter.freeResultSet(pSql);
this.connector.freeResultSet(pSql);
throw new SQLException(TSDBConstants.FixErrMsg(TSDBConstants.JNI_CONNECTION_NULL));
}
// create/insert/update/delete/alter
if (resultSetPointer == TSDBConstants.JNI_NULL_POINTER) {
this.connecter.freeResultSet(pSql);
this.connector.freeResultSet(pSql);
return null;
}
if (!this.connecter.isUpdateQuery(pSql)) {
TSDBResultSet res = new TSDBResultSet(this.connecter, resultSetPointer);
res.setBlockWiseFetch(true);
if (!this.connector.isUpdateQuery(pSql)) {
TSDBResultSet res = new TSDBResultSet(this.connector, resultSetPointer);
res.setBatchFetch(this.connection.getBatchFetch());
return res;
} else {
this.connecter.freeResultSet(pSql);
this.connector.freeResultSet(pSql);
return null;
}
......@@ -97,28 +97,28 @@ public class TSDBStatement implements Statement {
}
// TODO check if current query is update query
pSql = this.connecter.executeQuery(sql);
long resultSetPointer = this.connecter.getResultSet();
pSql = this.connector.executeQuery(sql);
long resultSetPointer = this.connector.getResultSet();
if (resultSetPointer == TSDBConstants.JNI_CONNECTION_NULL) {
this.connecter.freeResultSet(pSql);
this.connector.freeResultSet(pSql);
throw new SQLException(TSDBConstants.FixErrMsg(TSDBConstants.JNI_CONNECTION_NULL));
}
this.affectedRows = this.connecter.getAffectedRows(pSql);
this.connecter.freeResultSet(pSql);
this.affectedRows = this.connector.getAffectedRows(pSql);
this.connector.freeResultSet(pSql);
return this.affectedRows;
}
public String getErrorMsg(long pSql) {
return this.connecter.getErrMsg(pSql);
return this.connector.getErrMsg(pSql);
}
public void close() throws SQLException {
if (!isClosed) {
if (!this.connecter.isResultsetClosed()) {
this.connecter.freeResultSet();
if (!this.connector.isResultsetClosed()) {
this.connector.freeResultSet();
}
isClosed = true;
}
......@@ -174,15 +174,15 @@ public class TSDBStatement implements Statement {
throw new SQLException("Invalid method call on a closed statement.");
}
boolean res = true;
pSql = this.connecter.executeQuery(sql);
long resultSetPointer = this.connecter.getResultSet();
pSql = this.connector.executeQuery(sql);
long resultSetPointer = this.connector.getResultSet();
if (resultSetPointer == TSDBConstants.JNI_CONNECTION_NULL) {
this.connecter.freeResultSet(pSql);
this.connector.freeResultSet(pSql);
throw new SQLException(TSDBConstants.FixErrMsg(TSDBConstants.JNI_CONNECTION_NULL));
} else if (resultSetPointer == TSDBConstants.JNI_NULL_POINTER) {
// no result set is retrieved
this.connecter.freeResultSet(pSql);
this.connector.freeResultSet(pSql);
res = false;
}
......@@ -193,10 +193,10 @@ public class TSDBStatement implements Statement {
if (isClosed) {
throw new SQLException("Invalid method call on a closed statement.");
}
long resultSetPointer = connecter.getResultSet();
long resultSetPointer = connector.getResultSet();
TSDBResultSet resSet = null;
if (resultSetPointer != TSDBConstants.JNI_NULL_POINTER) {
resSet = new TSDBResultSet(connecter, resultSetPointer);
resSet = new TSDBResultSet(connector, resultSetPointer);
}
return resSet;
}
......@@ -269,7 +269,7 @@ public class TSDBStatement implements Statement {
}
public Connection getConnection() throws SQLException {
if (this.connecter != null)
if (this.connector != null)
return this.connection;
throw new SQLException(TSDBConstants.UNSUPPORT_METHOD_EXCEPTIONZ_MSG);
}
......
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