mirror of
https://github.com/alibaba/druid.git
synced 2023-03-04 19:17:16 +00:00
wenshao
581b1313ef
git-svn-id: http://code.alibabatech.com/svn/druid/trunk@91 b9813039-fb51-4c41-a8b9-e21c2acb5095
426 lines
14 KiB
Java
426 lines
14 KiB
Java
/*
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* Copyright 1999-2011 Alibaba Group Holding Ltd.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.alibaba.druid.util;
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import java.io.Closeable;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.PrintStream;
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import java.io.Reader;
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import java.io.StringWriter;
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import java.net.URL;
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import java.sql.Connection;
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import java.sql.Date;
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import java.sql.ResultSet;
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import java.sql.ResultSetMetaData;
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import java.sql.SQLException;
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import java.sql.Statement;
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import java.sql.Types;
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import java.util.Enumeration;
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import java.util.Properties;
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/**
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* @author wenshao<szujobs@hotmail.com>
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*/
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public final class JdbcUtils {
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private static final Properties driverUrlMapping = new Properties();
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static {
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try {
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for (Enumeration<URL> e = Thread.currentThread().getContextClassLoader().getResources("META-INF/druid-driver.properties"); e.hasMoreElements();) {
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URL url = e.nextElement();
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Properties property = new Properties();
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InputStream is = null;
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try {
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is = url.openStream();
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property.load(is);
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} finally {
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JdbcUtils.close(is);
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}
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driverUrlMapping.putAll(property);
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}
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} catch (Exception e) {
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e.printStackTrace(); // error skip
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}
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}
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public final static void close(Connection x) {
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if (x != null) {
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try {
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x.close();
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} catch (SQLException e) {
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e.printStackTrace();
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}
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}
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}
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public final static void close(Statement x) {
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if (x != null) {
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try {
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x.close();
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} catch (SQLException e) {
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e.printStackTrace();
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}
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}
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}
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public final static void close(ResultSet x) {
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if (x != null) {
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try {
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x.close();
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} catch (SQLException e) {
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e.printStackTrace();
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}
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}
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}
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public final static void close(Closeable x) {
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if (x != null) {
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try {
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x.close();
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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}
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public final static void printResultSet(ResultSet rs) throws SQLException {
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printResultSet(rs, System.out);
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}
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public final static void printResultSet(ResultSet rs, PrintStream out) throws SQLException {
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ResultSetMetaData metadata = rs.getMetaData();
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int columnCount = metadata.getColumnCount();
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for (int columnIndex = 1; columnIndex <= columnCount; ++columnIndex) {
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if (columnIndex != 1) {
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out.print('\t');
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}
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out.print(metadata.getColumnName(columnIndex));
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}
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out.println();
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while (rs.next()) {
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for (int columnIndex = 1; columnIndex <= columnCount; ++columnIndex) {
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if (columnIndex != 1) {
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out.print('\t');
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}
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int type = metadata.getColumnType(columnIndex);
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if (type == Types.VARCHAR || type == Types.CHAR || type == Types.NVARCHAR || type == Types.NCHAR) {
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out.print(rs.getString(columnIndex));
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} else if (type == Types.DATE) {
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Date date = rs.getDate(columnIndex);
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if (rs.wasNull()) {
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out.print("null");
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} else {
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out.print(date.toString());
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}
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} else if (type == Types.BIT) {
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boolean value = rs.getBoolean(columnIndex);
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if (rs.wasNull()) {
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out.print("null");
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} else {
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out.print(Boolean.toString(value));
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}
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} else if (type == Types.BOOLEAN) {
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boolean value = rs.getBoolean(columnIndex);
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if (rs.wasNull()) {
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out.print("null");
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} else {
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out.print(Boolean.toString(value));
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}
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} else if (type == Types.TINYINT) {
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byte value = rs.getByte(columnIndex);
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if (rs.wasNull()) {
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out.print("null");
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} else {
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out.print(Byte.toString(value));
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}
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} else if (type == Types.SMALLINT) {
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short value = rs.getShort(columnIndex);
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if (rs.wasNull()) {
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out.print("null");
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} else {
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out.print(Short.toString(value));
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}
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} else if (type == Types.INTEGER) {
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int value = rs.getInt(columnIndex);
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if (rs.wasNull()) {
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out.print("null");
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} else {
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out.print(Integer.toString(value));
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}
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} else if (type == Types.BIGINT) {
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long value = rs.getLong(columnIndex);
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if (rs.wasNull()) {
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out.print("null");
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} else {
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out.print(Long.toString(value));
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}
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} else if (type == Types.TIMESTAMP) {
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out.print(String.valueOf(rs.getTimestamp(columnIndex)));
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} else if (type == Types.DECIMAL) {
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out.print(String.valueOf(rs.getBigDecimal(columnIndex)));
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} else if (type == Types.CLOB) {
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out.print(String.valueOf(rs.getString(columnIndex)));
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} else if (type == Types.JAVA_OBJECT) {
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Object objec = rs.getObject(columnIndex);
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if (rs.wasNull()) {
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out.print("null");
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} else {
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out.print(String.valueOf(objec));
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}
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} else if (type == Types.LONGVARCHAR) {
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Object objec = rs.getString(columnIndex);
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if (rs.wasNull()) {
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out.print("null");
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} else {
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out.print(String.valueOf(objec));
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}
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} else {
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Object objec = rs.getObject(columnIndex);
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if (rs.wasNull()) {
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out.print("null");
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} else {
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out.print(String.valueOf(objec));
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}
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}
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}
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out.println();
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}
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}
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public static String getTypeName(int sqlType) {
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switch (sqlType) {
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case Types.ARRAY:
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return "ARRAY";
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case Types.BIGINT:
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return "BIGINT";
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case Types.BINARY:
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return "BINARY";
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case Types.BIT:
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return "BIT";
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case Types.BLOB:
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return "BLOB";
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case Types.BOOLEAN:
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return "BOOLEAN";
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case Types.CHAR:
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return "CHAR";
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case Types.CLOB:
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return "CLOB";
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case Types.DATALINK:
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return "DATALINK";
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case Types.DATE:
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return "DATE";
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case Types.DECIMAL:
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return "DECIMAL";
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case Types.DISTINCT:
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return "DISTINCT";
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case Types.DOUBLE:
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return "DOUBLE";
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case Types.FLOAT:
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return "FLOAT";
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case Types.INTEGER:
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return "INTEGER";
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case Types.JAVA_OBJECT:
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return "JAVA_OBJECT";
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case Types.LONGNVARCHAR:
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return "LONGNVARCHAR";
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case Types.LONGVARBINARY:
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return "LONGVARBINARY";
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case Types.NCHAR:
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return "NCHAR";
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case Types.NCLOB:
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return "NCLOB";
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case Types.NULL:
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return "NULL";
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case Types.NUMERIC:
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return "NUMERIC";
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case Types.NVARCHAR:
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return "NVARCHAR";
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case Types.REAL:
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return "REAL";
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case Types.REF:
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return "REF";
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case Types.ROWID:
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return "ROWID";
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case Types.SMALLINT:
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return "SMALLINT";
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case Types.SQLXML:
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return "SQLXML";
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case Types.STRUCT:
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return "STRUCT";
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case Types.TIME:
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return "TIME";
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case Types.TIMESTAMP:
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return "TIMESTAMP";
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case Types.TINYINT:
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return "TINYINT";
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case Types.VARBINARY:
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return "VARBINARY";
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case Types.VARCHAR:
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return "VARCHAR";
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default:
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return "OTHER";
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}
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}
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public static String read(Reader reader) {
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try {
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final int DEFAULT_BUFFER_SIZE = 1024 * 4;
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StringWriter writer = new StringWriter();
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char[] buffer = new char[DEFAULT_BUFFER_SIZE];
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long count = 0;
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int n = 0;
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while (-1 != (n = reader.read(buffer))) {
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writer.write(buffer, 0, n);
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count += n;
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}
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return writer.toString();
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} catch (IOException ex) {
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throw new IllegalStateException("read error", ex);
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}
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}
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public static String read(Reader reader, int length) {
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try {
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char[] buffer = new char[length];
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int offset = 0;
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int rest = length;
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int len;
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while ((len = reader.read(buffer, offset, rest)) != -1) {
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rest -= len;
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offset += len;
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if (rest == 0) {
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break;
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}
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}
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return new String(buffer, 0, length - rest);
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} catch (IOException ex) {
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throw new IllegalStateException("read error", ex);
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}
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}
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public static String getDriverClassName(String rawUrl) throws SQLException {
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if (rawUrl.startsWith("jdbc:derby:")) {
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return "org.apache.derby.jdbc.EmbeddedDriver";
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} else if (rawUrl.startsWith("jdbc:mysql:")) {
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return "com.mysql.jdbc.Driver";
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} else if (rawUrl.startsWith("jdbc:oracle:")) {
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return "oracle.jdbc.driver.OracleDriver";
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} else if (rawUrl.startsWith("jdbc:microsoft:")) {
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return "com.microsoft.jdbc.sqlserver.SQLServerDriver";
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} else if (rawUrl.startsWith("jdbc:sybase:Tds:")) {
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return "com.sybase.jdbc2.jdbc.SybDriver";
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} else if (rawUrl.startsWith("jdbc:jtds:")) {
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return "net.sourceforge.jtds.jdbc.Driver";
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} else if (rawUrl.startsWith("jdbc:fake:") || rawUrl.startsWith("jdbc:mock:")) {
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return "com.alibaba.druid.mock.MockDriver";
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} else if (rawUrl.startsWith("jdbc:postgresql:")) {
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return "org.postgresql.Driver";
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} else if (rawUrl.startsWith("jdbc:hsqldb:")) {
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return "org.hsqldb.jdbcDriver";
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} else if (rawUrl.startsWith("jdbc:db2:")) {
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return "COM.ibm.db2.jdbc.app.DB2Driver";
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} else if (rawUrl.startsWith("jdbc:sqlite:")) {
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return "org.sqlite.JDBC";
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} else if (rawUrl.startsWith("jdbc:ingres:")) {
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return "com.ingres.jdbc.IngresDriver";
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} else if (rawUrl.startsWith("jdbc:h2:")) {
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return "org.h2.Driver";
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} else if (rawUrl.startsWith("jdbc:mckoi:")) {
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return "com.mckoi.JDBCDriver";
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} else if (rawUrl.startsWith("jdbc:cloudscape:")) {
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return "COM.cloudscape.core.JDBCDriver";
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} else if (rawUrl.startsWith("jdbc:informix-sqli:")) {
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return "com.informix.jdbc.IfxDriver";
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} else if (rawUrl.startsWith("jdbc:timesten:")) {
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return "com.timesten.jdbc.TimesTenDriver";
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} else if (rawUrl.startsWith("jdbc:as400:")) {
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return "com.ibm.as400.access.AS400JDBCDriver";
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} else if (rawUrl.startsWith("jdbc:sapdb:")) {
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return "com.sap.dbtech.jdbc.DriverSapDB";
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} else if (rawUrl.startsWith("jdbc:JSQLConnect:")) {
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return "com.jnetdirect.jsql.JSQLDriver";
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} else if (rawUrl.startsWith("jdbc:JTurbo:")) {
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return "com.newatlanta.jturbo.driver.Driver";
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} else if (rawUrl.startsWith("jdbc:firebirdsql:")) {
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return "org.firebirdsql.jdbc.FBDriver";
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} else if (rawUrl.startsWith("jdbc:interbase:")) {
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return "interbase.interclient.Driver";
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} else if (rawUrl.startsWith("jdbc:pointbase:")) {
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return "com.pointbase.jdbc.jdbcUniversalDriver";
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} else if (rawUrl.startsWith("jdbc:edbc:")) {
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return "ca.edbc.jdbc.EdbcDriver";
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} else if (rawUrl.startsWith("jdbc:mimer:multi1:")) {
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return "com.mimer.jdbc.Driver";
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} else {
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throw new SQLException("unkow jdbc driver");
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}
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}
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}
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