kettle與java（kettle怎麼說）

本文目錄一覽：

• 1、如何將kettle 集成到java應用
• 2、java 怎麼設置kettle資料庫
• 3、如何將JAVA程序集成到KETTLE中

如何將kettle 集成到java應用

在Java應用程序中調用Kettle的Transformation

package com.ggd543.kettle.trans

import org.pentaho.di.core.util.EnvUtil

import org.pentaho.di.core.KettleEnvironment

import org.pentaho.di.trans.{Trans, TransMeta}

/**

*

* User: 劉永健

* Date: 12-3-8

* Time: 下午12:14

* To change this template use File | Settings | File Templates.

*/

object TransDemo extends App {

execTrans(args(0)) // ktr文件的全路徑

def execTrans(fileName: String) {

KettleEnvironment.init()

EnvUtil.environmentInit();

val transMeta = new TransMeta(fileName)

val trans = new Trans(transMeta)

trans.execute(null) // you can pass arguments instead of null

trans.waitUntilFinished();

if (trans.getErrors 0) {

throw new RuntimeException(“There were errors during transformation execution”)

}

}

}

?xml version=”1.0″ encoding=”UTF-8″?

project xmlns=””

xmlns:xsi=””

xsi:schemaLocation=” “

modelVersion4.0.0/modelVersion

groupIdkettledemo/groupId

artifactIdkettledemo/artifactId

version1.0/version

dependencies

!– Test —

dependency

groupIdjunit/groupId

artifactIdjunit/artifactId

version4.8.1/version

scopetest/scope

/dependency

dependency

groupIdorg.scala-tools.testing/groupId

artifactIdspecs_2.9.1/artifactId

version1.6.9/version

scopetest/scope

/dependency

dependency

groupIdorg.scalatest/groupId

artifactIdscalatest_2.9.1/artifactId

version1.6.1/version

scopetest/scope

/dependency

dependency

groupIdcom.typesafe.akka/groupId

artifactIdakka-actor/artifactId

version2.0/version

/dependency

dependency

groupIdcom.typesafe.akka/groupId

artifactIdakka-testkit/artifactId

version2.0/version

/dependency

/dependencies

build

plugins

plugin

groupIdorg.apache.maven.plugins/groupId

artifactIdmaven-compiler-plugin/artifactId

configuration

source1.6/source

target1.6/target

encodingUTF-8/encoding

/configuration

/plugin

/plugins

/build

profiles

profile

idpentaho/id

activation

activeByDefaulttrue/activeByDefault

/activation

properties

pentaho.kettle.version4.2.1.1/pentaho.kettle.version

/properties

dependencies

dependency

groupIdpentaho-kettle/groupId

artifactIdkettle-core/artifactId

version${pentaho.kettle.version}/version

/dependency

dependency

groupIdpentaho-kettle/groupId

artifactIdkettle-db/artifactId

version${pentaho.kettle.version}/version

/dependency

dependency

groupIdpentaho-kettle/groupId

artifactIdkettle-engine/artifactId

version${pentaho.kettle.version}/version

/dependency

dependency

groupIdpentaho/groupId

artifactIdpentaho-hdfs-vfs/artifactId

version1.0.1/version

/dependency

dependency

groupIdlog4j/groupId

artifactIdlog4j/artifactId

version1.2.16/version

/dependency

dependency

groupIdpentaho-kettle/groupId

artifactIdkettle-test/artifactId

version${pentaho.kettle.version}/version

scopetest/scope

/dependency

/dependencies

repositories

repository

idpentaho/id

namePentaho Repository/name

url;/url

/repository

/repositories

/profile

profile

idscala/id

activation

activeByDefaulttrue/activeByDefault

/activation

properties

scala.version2.9.1/scala.version

/properties

repositories

repository

idtypesafe/id

nameTypesafe Repository/name

url;/url

/repository

/repositories

dependencies

dependency

groupIdorg.scala-lang/groupId

artifactIdscala-compiler/artifactId

version${scala.version}/version

scopecompile/scope

/dependency

dependency

groupIdorg.scala-lang/groupId

artifactIdscala-library/artifactId

version${scala.version}/version

/dependency

dependency

groupIdorg.scala-lang/groupId

artifactIdscala-swing/artifactId

version${scala.version}/version

/dependency

/dependencies

build

plugins

plugin

groupIdorg.scala-tools/groupId

artifactIdmaven-scala-plugin/artifactId

executions

execution

goals

goalcompile/goal

goaltestCompile/goal

/goals

/execution

/executions

/plugin

/plugins

/build

/profile

/profiles

/project

java 怎麼設置kettle資料庫

java調用kettle資料庫類型資源庫中的ktr

此問題在1個月前或許已經接觸，單是一直木有怎麼用到，就被耽擱至今；問題的解決要來源於網路，其實我還想說問題的解決更多的是要靠我們自己的思想，不過多的言情，我們接下來直接進入主題吧！

環境：kettle-spoon 4.2.0,oracle11g，myeclipse6.5，sqlserver2008

前提：在kettle圖形界面spoon裡面已經做好了一個ktr轉換模型，此時我的ktr信息如下圖：

Step1：在myeclipse創建project，導入kettle集成所需要的包

Step2:重點解析與code源碼

//定義ktr名字

private static String transName = “test1”;

//初始化kettle環境

KettleEnvironment.init();

//創建資源庫對象，此時的對象還是一個空對象

KettleDatabaseRepository repository = new KettleDatabaseRepository();

//創建資源庫資料庫對象，類似我們在spoon裡面創建資源庫

DatabaseMeta dataMeta =

new DatabaseMeta(“enfo_bi”,”Oracle”,”Native”,”ip”,”sid”,”port”,”username”,”password”);

//資源庫元對象,名稱參數，id參數，描述等可以隨便定義

KettleDatabaseRepositoryMeta kettleDatabaseMeta =

new KettleDatabaseRepositoryMeta(“enfo_bi”, “enfo_bi”, “king description”,dataMeta);

//給資源庫賦值

repository.init(kettleDatabaseMeta);

//連接資源庫

repository.connect(“admin”,”admin”);

//根據變數查找到模型所在的目錄對象

RepositoryDirectoryInterface directory = repository.findDirectory(“/enfo_worker/wxj”);

//創建ktr元對象

TransMeta transformationMeta = ((Repository) repository).loadTransformation(transName, directory, null, true, null ) ;

//創建ktr

Trans trans = new Trans(transformationMeta);

//執行ktr

trans.execute(null);

//等待執行完畢

trans.waitUntilFinished();

上面的兩個步驟才可以確定是資源庫中的那個路徑下的ktr和我們用命令執行一樣的-dir ,-tran -job

附上源碼：

package kettle;

import org.pentaho.di.core.KettleEnvironment;

import org.pentaho.di.core.database.DatabaseMeta;

import org.pentaho.di.core.exception.KettleException;

import org.pentaho.di.repository.Repository;

import org.pentaho.di.repository.RepositoryDirectoryInterface;

import org.pentaho.di.repository.kdr.KettleDatabaseRepository;

import org.pentaho.di.repository.kdr.KettleDatabaseRepositoryMeta;

import org.pentaho.di.trans.Trans;

import org.pentaho.di.trans.TransMeta;

/**

* pTitle: java調用kettle4.2資料庫型資料庫中的轉換/p

* pDescription: /p

* pCopyright: Copyright () 2012/p

*/

public class ExecuteDataBaseRepTran {

private static String transName = “test1”;

public static void main(String[] args) {

try {

//初始化kettle環境

KettleEnvironment.init();

//創建資源庫對象，此時的對象還是一個空對象

KettleDatabaseRepository repository = new KettleDatabaseRepository();

//創建資源庫資料庫對象，類似我們在spoon裡面創建資源庫

DatabaseMeta dataMeta =

new DatabaseMeta(“enfo_bi”,”Oracle”,”Native”,”ip”,”sid”,”port”,”username”,”password”);

//資源庫元對象,名稱參數，id參數，描述等可以隨便定義

KettleDatabaseRepositoryMeta kettleDatabaseMeta =

new KettleDatabaseRepositoryMeta(“enfo_bi”, “enfo_bi”, “king description”,dataMeta);

//給資源庫賦值

repository.init(kettleDatabaseMeta);

//連接資源庫

repository.connect(“admin”,”admin”);

//根據變數查找到模型所在的目錄對象,此步驟很重要。

RepositoryDirectoryInterface directory = repository.findDirectory(“/enfo_worker/wxj”);

//創建ktr元對象

TransMeta transformationMeta = ((Repository) repository).loadTransformation(transName, directory, null, true, null ) ;

//創建ktr

Trans trans = new Trans(transformationMeta);

//執行ktr

trans.execute(null);

//等待執行完畢

trans.waitUntilFinished();

if(trans.getErrors()0)

{

System.err.println(“Transformation run Failure!”);

}

else

{

System.out.println(“Transformation run successfully!”);

}

} catch (KettleException e) {

e.printStackTrace();

}

}

}

如何將JAVA程序集成到KETTLE中

在Java應用程序中調用Kettle的Transformation

package com.ggd543.kettle.trans

import org.pentaho.di.core.util.EnvUtil

import org.pentaho.di.core.KettleEnvironment

import org.pentaho.di.trans.{Trans, TransMeta}

/**

*

* User: 劉永健

* Date: 12-3-8

* Time: 下午12:14

* To change this template use File | Settings | File Templates.

*/

object TransDemo extends App {

execTrans(args(0)) // ktr文件的全路徑

def execTrans(fileName: String) {

KettleEnvironment.init()

EnvUtil.environmentInit();

val transMeta = new TransMeta(fileName)

val trans = new Trans(transMeta)

trans.execute(null) // you can pass arguments instead of null

trans.waitUntilFinished();

if (trans.getErrors 0) {

throw new RuntimeException(“There were errors during transformation execution”)

}

}

}