albert's blog

2007/11/22

Guide to Windchill Performance Tuning

http://junyuo.googlepages.com/GuidetoWindchillPerformanceTuning.rar

2007/11/20

Java 2 Software Development Kit (J2SE SDK) - the new jre isn't working

Scenario
I have instaled the new j2se development kit 5.0 and jre5.0, but my browser cannot open any applet and Sun Java console. The error is ---- " The Java Runtime Environment cannot be loaded from <\bin\server\jvm.dll> ???!!!

Solution
In your "Documents and Settings\username\Application Data" folder you'll probably find a folder named "Sun". Delete that folder (or rename it).

reference: http://forum.java.sun.com/thread.jspa?threadID=567821&forumID=17

2007/10/29

2006/09/27

[JavaScript] How to do trim() in JavaScript

<body onload="test()">

<script>

String.prototype.trim = function() { return this.replace(/^\s+|\s+$/, ''); };

function test() {

var str = " a ";

alert("Original string: '" + str + "'");

str = str.trim();

alert("Incompletely stripped string: '" + str + "'");

}

</script>

reference
http://www.bigbold.com/snippets/posts/show/701

[JavaScript] How to do trim() in JavaScript

2006/09/08

[Windchill] How to generate mData

Steps.
1. open rose
2. Tools --> Windchill --> System Generation
3. Click OK

Troubleshoot
It may show generation refuse error in the progress of system generation
Error: wt.templateutil.processor.DefaultTemplateProcessor is not Extendable, so cannot extend it.

Solution
1. Open user.properties (under /Codebase)
2. add one attribute wihch named wt.generation.overrideNonExtendableClasses, and add classes which we want to do extend. If we have multiple classes need to do extend, sperate them by comma.
ex. wt.generation.overrideNonExtendableClasses=wt.templateutil.processor.DefaultTemplateProcessor,wt.templateutil.processor.FormTaskDelegate
After you add them to user.properties, you can see this kind of warning message, it means you had successfully finished system generation.
Warning: wt.templateutil.processor.DefaultTemplateProcessor is not Extendable, but is being allowed as a backward compatible override

2006/08/28

[Database] Oracle JDBC FAQ

http://www.oracle.com/technology/tech/java/sqlj_jdbc/htdocs/jdbc_faq.htm

2006/08/27

[Mail] commons-mail 亂碼問題

[常見問題1]sent出去的mail的中文標題變成亂碼

呼叫setCharset此方法，設定編碼方式為UTF-8

public void setCharset(java.lang.String newCharset)

http://jakarta.apache.org/commons/email/api-release/org/apache/commons/mail/Email.html#setCharset(java.lang.String)

[常見問題2]sent出去的mail的中文內文便成亂碼

呼叫setContent此方法，第一個參數給予訊息內容，第二個參數給予conent type，例如text/plain;charset=UTF-8

public void setContent(java.lang.Object aObject,
                  java.lang.String aContentType)

http://jakarta.apache.org/commons/email/api-release/org/apache/commons/mail/Email.html#setContent(java.lang.Object,%20java.lang.String)

[常見問題3]sent出去的附件中文檔名變成亂碼

在EmailAttachment的物件中的setName方法中，使用MimeUtility的encodeText方法
attachment.setName(MimeUtility.encodeText("中文訊息", "UTF-8", null));

http://java.sun.com/products/javamail/javadocs/javax/mail/internet/MimeUtility.html

2006/08/15

[Tomcat] How to filter IP

http://tomcat.apache.org/tomcat-5.0-doc/config/context.html

keyword: Request Filters

2006/08/11

[InfoEngine] Remember to get newOid as you want to update-object

<ie:unit>
 <ie:webject name="CheckOut-Objects" type="ACT">
  <ie:param name="INSTANCE" data="windchill"/>
  <ie:param name="AUTHORIZATION" data="${@server[]authorization[0]}"/>
  <ie:param name="OBJECT_REF" data="<%=objRef%>"/>
  <ie:param name="GROUP_OUT" data="checkoutDoc"/> 
 </ie:webject>

 <%

 Group checkoutDoc = getGroup("checkoutDoc");;
 String newOid = (String)checkoutDoc.getAttributeValue(0, "obid");
 System.out.println("Checkout Document ends... Update begin, new id");
 System.out.println(newOid);
 %>

 <ie:failure>
 <%System.out.println("no document had been CheckOut");%>
 </ie:failure>

 <ie:success>
 <% System.out.println (getGroup("checkoutDoc").getElementCount() + " document(s) 
 had been CheckOut"); %>
 </ie:success>

</ie:unit> 

<ie:unit>
 <ie:webject name="Update-Objects" type="ACT">
  <ie:param name="INSTANCE" data="windchill"/>
  <ie:param name="GROUP_OUT" data="updateDoc"/>
  <ie:param name="ATTRIBUTE" data="IBA|Revise_By_Drawing"/>
  <ie:param name="OBJECT_REF" data="<%=newOid%>"/>
  <ie:param name="TYPE" data="wt.doc.WTDocument"/>
  <ie:param name="FIELD" data="IBA|Revise_By_Drawing='N'"/> 
  <ie:param name="AUTHORIZATION" data="${@server[]authorization[0]}"/>
 </ie:webject>

 <ie:failure>
  <%System.out.println("no document had been update");%>
 </ie:failure>

 <ie:success>
  <% System.out.println (getGroup("updateDoc").getElementCount() + " document(s) had been updated"); %>
 </ie:success>
</ie:unit>

<ie:unit>

 <ie:webject name="CheckIn-Objects" type="ACT">
  <ie:param name="INSTANCE" data="com.ptc.vm-ase.Windchill"/>
  <ie:param name="ATTRIBUTE" data="IBA|Revise_By_Drawing"/>
  <ie:param name="GROUP_OUT" data="checkInDoc"/>
  <ie:param name="AUTHORIZATION" data="${@server[]authorization[0]}"/>
  <ie:param name="TYPE" data="wt.doc.WTDocument"/>
  <ie:param name="OBJECT_REF" data="<%=newOid%>"/>
 </ie:webject>

 <ie:failure>
  <%System.out.println("no document had been checked-in");%>
 </ie:failure>

 <ie:success>
  <% System.out.println (getGroup("checkInDoc").getElementCount() + " document(s) had been checked-in"); %>
 </ie:success>

</ie:unit>

[InfoEngine] Where to find the compiled InfoEngine Task

You can find the Java files and class files under:

<Windchill_HOME>\tasks\codebase\com\infoengine\compiledTasks

2006/08/07

Jump into AJAX development

http://www.javaworld.com/javaworld/jw-08-2006/jw-0807-ajax.html

2006/07/20

An Introduction to Subversion

http://albertguo.myweb.hinet.net/data/Subversion.rar

2006/07/04

[SVN] mod_dav_svn.so is garbled- perhaps this is not an Apache module DSO

Error Message
httpd: Syntax error on line 115 of D:/Program Files/Apache Software Foundation/Apache2.2/conf/httpd.conf: API module structure `dav_svn_module' in file D:/Program Files/Apache Software Foundation/Apache2.2/modules/mod_dav_svn.so is garbled- perhaps this is not an Apache module DSO?

Resolution
Owning to the apache version is 2.2, it will report this kind of error message. Just change the apache version to 2.0, then this kind of error will disappear.

2006/06/06

[Windchill] Build ResourceBundle How-To

If I edit some texts in reportResource.rbInfo, how do I build this resource bundle.

Steps.
1. open windchill shell window
2. utilize ResourceBuild
Example Usage: ResourceBuild D:\ptc\Windchill\src\wt\fc or ResourceBuild wt.fc.fcResource
--Arg1 specifies which directory or class to generate.
--Arg2 specifies if locale specific resource will be built.
--values for arguments not passed will be obtained from tools.properties.

then input the command as bellows:
ResourceBuild ext.fusheng.report.reportResource true

execution info:
D:\ptc\Windchill>echo off
CLASSPATH=
file:/D:/ptc/Windchill/codebase/
file:/D:/ptc/Windchill/srclib/SystemGeneration.jar
file:/D:/ptc/Windchill/srclib/WindchillUtil.jar
file:/D:/ptc/Windchill/srclib/CommonXml.jar
file:/D:/ptc/Windchill/srclib/CommonCore.jar
file:/D:/ptc/Windchill/srclib/Modules.jar
file:/D:/ptc/Windchill/srclib/JGL.jar
file:/D:/ptc/Windchill/srclib/xmlParserAPIs.jar
file:/D:/ptc/Windchill/srclib/xercesImpl.jar
file:/D:/ptc/Windchill/srclib/dom4j.jar
file:/D:/ptc/Windchill/srclib/SystemGeneration_L10N.jar
file:/D:/ptc/Windchill/srclib/WindchillUtil_L10N.jar
file:/D:/ptc/Windchill/srclib/CommonXml_L10N.jar
file:/D:/ptc/Windchill/srclib/CommonCore_L10N.jar
Update ResourceInfos = false
Build ResourceBundles = true
Process Locales = en_US,en_GB,fr,de,es,ja,it,ko,zh_CN,zh_TW

ext.fusheng.report.reportResource
Warning: com.sun.tools.javac.Main cannot be loaded, using external compiler instead
Execution/Launch Time = 4.0 seconds

2006/06/02

[HTML / JS] View formatted source (format source extension)

https://addons.mozilla.org/firefox/697/

Displays formatted and color-coded source and optional CSS information for each element.

You can see exactly which CSS rules match for an element. The rules are displayed including file name and line number. The topmost element is that with the highest priority.

You can fold/unfold/hilite block elements (table, tr, td, div, span,...). Really cool feature: select a block level element of interest directly in the page and view it's source! To help you to quickly analyze the source code you can view images directly from the source and add comments to folded block elements. The code view is based on the rendered document, so you will also see dynamically (by Javascript) created and modified html elements! Works also with frames and selected text.

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