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TableAu官方案例,环境设置等
功能实现
- 将数据库的查询结果生成TDE文件(TableAu数据源)
- 并上传至服务器
- 可实时替换TableAu Service仪表盘中的数据.
环境设置
需要安装TableAu SDK,否则无法生成TDE文件,异常为:找不到模块
根据系统版本下载SDK,配置环境变量
详情参考上面的连接!
TableAu Jar
#TableAu 需要的Jar包,连接上有下载地址.
jna.jar
tableaucommon.jar
tableauextract.jar
tableauserver.jar全部代码(供参考)
package com.tenly.common.sql.util;
/**
* -----------------------------------------------------------------------------
*
* 该类用与导出TDE文件(TableAu的离线数据格式)
*
* -----------------------------------------------------------------------------
*/
import java.io.File;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
import com.tableausoftware.TableauException;
import com.tableausoftware.common.Collation;
import com.tableausoftware.common.Result;
import com.tableausoftware.common.Type;
import com.tableausoftware.extract.Extract;
import com.tableausoftware.extract.ExtractAPI;
import com.tableausoftware.extract.Row;
import com.tableausoftware.extract.Table;
import com.tableausoftware.extract.TableDefinition;
import com.tableausoftware.server.ServerAPI;
import com.tableausoftware.server.ServerConnection;
public final class CreateTableAuFile {
private static Map<String, Type> typeMap=getTypeMap();
private static SimpleDateFormat format=new SimpleDateFormat("yyyy-MM-dd");
private static Calendar cal = Calendar.getInstance();
/**
*------------------------------------------------------------------------
*该类用于创建TDE文件中的列
*-----------------------------------------------------------------------
* @throws Exception
*/
private static TableDefinition makeTableDefinition(String tableName) throws Exception {
Connection conn=null;
TableDefinition tableDef = new TableDefinition();
try{
conn= HiveExcutor.getConn();
ResultSet set= conn.getMetaData().getColumns(null, null, tableName, null);
if(set!=null){
tableDef.setDefaultCollation(Collation.EN_GB);
while(set.next()){
tableDef.addColumn(set.getString("COLUMN_NAME"), typeMap.get(set.getString("TYPE_NAME")));
}
}
}finally{
if(conn!=null){
conn.close();
conn=null;
}
}
return tableDef;
}
/**
*------------------------------------------------------------------------
*插入数据
*-----------------------------------------------------------------------
* @throws Exception
*/
private static void insertData(Table table,String tableName) throws Exception {
Connection conn= null;
PreparedStatement ps =null;
try{
conn= HiveExcutor.getConn();
TableDefinition tableDef = table.getTableDefinition();
Row row = new Row(tableDef);
int countColumn=tableDef.getColumnCount();
String column="";
if(countColumn==0) return;
for (int i = 0; i < countColumn; i++) {
column=column+tableDef.getColumnName(i)+",";
}
column=column.substring(0, column.length()-1);
String sql="select "+column+" from "+tableName;
ps = conn.prepareStatement(sql);
ResultSet resultSet = ps.executeQuery();
while(resultSet.next()){
for (int i = 0; i < countColumn; i++) {
if("INTEGER".equals(tableDef.getColumnType(i).toString())){
row.setInteger(i, resultSet.getInt(i+1));
}else if("DOUBLE".equals(tableDef.getColumnType(i).toString())){
row.setDouble(i, resultSet.getDouble(i+1));
}else if("BOOLEAN".equals(tableDef.getColumnType(i).toString())){
row.setBoolean(i, resultSet.getBoolean(i+1));
}else if("UNICODE_STRING".equals(tableDef.getColumnType(i).toString())){
row.setString(i, resultSet.getString(i+1));
}else if("DATE".equals(tableDef.getColumnType(i).toString())){
cal.setTime(resultSet.getDate(i+1));
row.setDate(i, cal.get(cal.YEAR),cal.get(cal.MONTH)+1,cal.get(cal.DAY_OF_MONTH));
}
}
table.insert(row);
}
}finally{
if( ps!=null){
ps.close();
ps=null;
}
if(conn!=null) {
conn.close();
conn=null;
}
}
}
/**
*------------------------------------------------------------------------
* 生成文件的主方法
* 文件保存路径在:<项目路径>\WebRoot\TableAuFile
* 文件名格式: 2016517TableName.tde
*-----------------------------------------------------------------------
* @throws Exception
*/
public void createFile(String tableName) throws Exception{
String sysName=System.getProperty("os.name").toUpperCase();
String relativelyPath=System.getProperty("user.dir");
File file=null;
String url=null;
String fileName=format.format(new Date())+"-"+tableName+".tde";
if(sysName.contains("WINDOW")){
relativelyPath=relativelyPath.substring(0,relativelyPath.lastIndexOf("\\bin"));
url=relativelyPath+"\\webapps\\gtdss\\WEB-INF\\classes\\TableAuFile";
file=new File(url+"\\"+fileName);
if(file.exists()){
file.delete();
}
/**Extract为必须的,不可设置其他替代字符*/
try ( Extract extract = new Extract(url+"\\"+fileName)) {
Table table;
if (!extract.hasTable("Extract")) {
TableDefinition tableDef = makeTableDefinition(tableName);
table = extract.addTable("Extract", tableDef);
}else{
table = extract.openTable("Extract");
}
insertData(table,tableName);
}
}else{
//usr/local/tomcat/bin
System.err.println(relativelyPath);
System.out.println("/bin");
System.err.println(relativelyPath.lastIndexOf("/bin"));
relativelyPath=relativelyPath.substring(0,relativelyPath.lastIndexOf("/bin"));
url=relativelyPath+"/webapps/gtdss/WEB-INF/classes/TableAuFile";
file=new File(url+"/"+fileName);
if(file.exists()){
file.delete();
}
/**Extract为必须的,不可设置其他替代字符*/
try ( Extract extract = new Extract(url+"/"+fileName)) {
Table table;
if (!extract.hasTable("Extract")) {
TableDefinition tableDef = makeTableDefinition(tableName);
table = extract.addTable("Extract", tableDef);
}else{
table = extract.openTable("Extract");
}
insertData(table,tableName);
}
}
ExtractAPI.initialize();
ExtractAPI.cleanup();
}
/**
*------------------------------------------------------------------------
*文件上传服务器
*tableAu service的连接信息
*path:172.*.*.*:8000 userName:**** password:****
*-----------------------------------------------------------------------
*/
public static void uploadFile(String theme,String tableName,String path, String userName, String password){
ServerConnection serverConnection =null;
try {
ServerAPI.initialize();
serverConnection = new ServerConnection();
serverConnection.connect( path, userName, password, "");
String sysName=System.getProperty("os.name").toUpperCase();
String fileName=format.format(new Date())+"-"+tableName;
String url=null;
String relativelyPath=null;
if(sysName.contains("WINDOW")){
relativelyPath=System.getProperty("user.dir");
relativelyPath=relativelyPath.substring(0,relativelyPath.lastIndexOf("\\bin"));
url=relativelyPath+"\\webapps\\gtdss\\WEB-INF\\classes\\TableAuFile";
String filePath=url+"\\"+fileName+".tde";
System.out.println("系统版本"+sysName+"-地址:"+filePath);
/**文件地址,default分组,名称,是否覆盖*/
serverConnection.publishExtract(filePath, "default",theme, true);
}else{
relativelyPath=System.getProperty("user.dir");
relativelyPath=relativelyPath.substring(0,relativelyPath.lastIndexOf("/bin"));
url=relativelyPath+"/webapps/gtdss/WEB-INF/classes/TableAuFile";
String filePath=url+"/"+fileName+".tde";
System.out.println("系统版本"+sysName+"-地址:"+filePath);
/**文件地址,default分组,名称,是否覆盖*/
serverConnection.publishExtract(filePath, "default",theme, true);
}
}
catch (TableauException e) {
switch(Result.enumForValue(e.getErrorCode())) {
case INTERNAL_ERROR:
System.err.println("INTERNAL_ERROR - Could not parse the response from the server.");
break;
case INVALID_ARGUMENT:
System.err.println("INVALID_ARGUMENT - " + e.getMessage());
break;
case CURL_ERROR:
System.err.println("CURL_ERROR - " + e.getMessage());
break;
case SERVER_ERROR:
System.err.println("SERVER_ERROR - " + e.getMessage());
break;
case NOT_AUTHENTICATED:
System.err.println("NOT_AUTHENTICATED - " + e.getMessage());
break;
case BAD_PAYLOAD:
System.err.println("BAD_PAYLOAD - Unknown response from the server. Make sure this version of Tableau API is compatible with your server.");
break;
case INIT_ERROR:
System.err.println("INIT_ERROR - " + e.getMessage());
break;
case UNKNOWN_ERROR:
default:
System.err.println("An unknown error occured.");
break;
}
e.printStackTrace(System.err);
}finally{
try {
serverConnection.disconnect();
serverConnection.close();
ServerAPI.cleanup();
} catch (TableauException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
/**
*------------------------------------------------------------------------
* TableAU中所有类型:INTEGER,DOUBLE,BOOLEAN,DATE,DATETIME,DURATION,CHAR_STRING,UNICODE_STRING
* 对应Hive中的所有类型
*-----------------------------------------------------------------------
*/
public static Map<String, Type> getTypeMap(){
Map<String, Type> map=new HashMap<String,Type>();
map.put("TINYINT",Type.INTEGER);
map.put("SMALLINT", Type.INTEGER);
map.put("BIGINT", Type.UNICODE_STRING);
map.put("BOOLEAN", Type.BOOLEAN);
map.put("FLOAT", Type.DOUBLE);
map.put("DOUBLE", Type.DOUBLE);
map.put("STRING", Type.UNICODE_STRING);
map.put("BINARY", Type.UNICODE_STRING);
map.put("TIMESTAMP", Type.UNICODE_STRING);
map.put("DECIMAL", Type.UNICODE_STRING);
map.put("DATE", Type.DATE);
map.put("CHAR", Type.UNICODE_STRING);
map.put("VARCHAR", Type.UNICODE_STRING);
return map;
}
}