Scriptella ETL 快速上手
史荣久 2010年07月07日 星期三 11:39 | 3207次浏览 | 0条评论
<
xml
> 完整的ETL文件
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<?xml
version="1.0" encoding="UTF-8"?>
<!--
指定编码，防止系统弄错字符集 -->
<!DOCTYPE
etl SYSTEM "http://scriptella.javaforge.com/dtd/etl.dtd">
<
etl
>
<
connection id=
"
script"
driver=
"
script"
/
>
<
connection id=
"
out"
driver=
"
oracle"
url=
"
jdbc:oracle:thin:@localhost:1521:DB"
/
>
<
connection id=
"
log"
driver=
"
script"
url=
"
log.txt"
/
>
<
query connection-id=
"
script"
>
<![CDATA[
for (var i = 0; i < 10; i++) {
login = 'login' + i;
//You can instantiate Java objects and invoke static methods
var now = new java.sql.Timestamp(java.lang.System.currentTimeMillis());
query.next(); //Executes a child script element // * 执行后续的所有元素
}]]>
<!--
Inserts a parameterized row into a database -->
<
script connection-id=
"
out"
>
INSERT INTO Table(ID, Login, Login_Time) VALUES (?i, ?login, ?now);
<
/script
>
<!--
Logs the message using MessageFormat class and parent context variables -->
<
script connection-id=
"
log"
>
// create Java String array of 2 elements
var a = java.lang.reflect.Array.newInstance(java.lang.Object, 2)
a[0] = now;a[1] = i;
println(format.format(a));
>
/script
>
<
/query
>
<
/etl
>
<
xml
> ETL文件片段
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<
connection id=
"
in"
driver=
"
csv"
url=
"
data.csv"
/
>
<
connection id=
"
out"
driver=
"
csv"
url=
"
report.csv"
>
#Use empty quote to turn off quoting
quote=
separator=;
<
/connection
>
<!--
connection里面可以设置参数，各个connection不一样 -->
<
script connection-id=
"
out"
>
ID,Priority,Summary,Status
<
/script
>
<
query connection-id=
"
in"
>
<!--
Empty query means select all-->
<
script connection-id=
"
out"
>
$rownum,$priority,$summary,$status
<
/script
>
<
/query
>
<
txt
> data.csv
priority,summary,status
11,summary1,21
12,summary1,22
<
txt
> report.csv
ID;Priority;Summary;Status
1;11;summary1;21
2;12;summary1;22
<
xml
> HTML邮件
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<
etl
>
<
connection driver=
"
mail"
url=
"
mailto:user@nosuchhost.com?subject=Hello"
classpath=
"
mail.jar:activation.jar"
>
type=html
mail.smtp.host=mail.host.name
mail.user=user
mail.password=password
mail.from=Firstname Lastname
<
user@nosuchhost.com
>
<
/connection
>
<
script
>
<![CDATA[
<html>
<body>
Hello,
<hr>
<a href="http://scriptella.javaforge.com/" title="Powered by Scriptella ETL">
<img src="http://scriptella.javaforge.com/images/scriptella-powered.gif"
width="88" height="31" border="0" alt="Powered by Scriptella ETL">
</a>
</body>
</html>]]>
<
/script
>
<
/etl
>
<
xml
> 动态发邮件
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<
etl
>
<
connection id=
"
mail"
driver=
"
mail"
url=
"
mailto:$email?subject=Hello $name"
classpath=
"
mail.jar:activation.jar"
>
mail.smtp.host=mail.host.name
mail.user=user
mail.password=password
mail.from=Administrator
<
user@nosuchhost.com
>
<
/connection
>
<
connection id=
"
db"
.../
>
<
query connection-id=
"
db"
>
SELECT * FROM Users
<
script connection-id=
"
mail"
>
#$rownum
Message produced by Scriptella ETL
<
/script
>
<
/query
>
<
/etl
>
<
xml
> ETL文件片段
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<
connection id=
"
xls"
url=
"
jdbc:xls:file:report.xls"
classpath=
"
sqlsheet-0.1.0.jar; poi-3.0.2-FINAL-20080204.jar; jsqlparser.jar"
/
>
<
script connection-id=
"
xls"
>
CREATE TABLE SHEET1(
COL1 INT,
COL2 INT
);
<
/script
>
...
<
query connection-id=
"
db"
>
...
<
script connection-id=
"
xls"
>
INSERT INTO SHEET1 (COL1,COL2) VALUES(${rownum},${col2_value});
<
/script
>
<
/query
>
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