Custom Taglets and static class fields/methods...

Hey all,
I have a curiosity question (running winxp + j2sdk 1.4.2_04).
I have written a few stand-alone and inline taglets to help me document my code. I had some problems initially getting the HTML to output correctly (and I don't know how to run javadoc in the debugger) so I wrote a simple class with only static methods/members that tracks the nesting level of the current tag and allows me to pad (prefix) the output based on the nesting level (rudimentary I know). I wasn't sure if the javadoc process was multi-threaded or not, so all methods are synchronized.
My problem is that the static initializer is being called 6 different times during the execution of javadoc.exe, resulting in what I would term as 6 "static" instances. Now, the only reason I can think of for this is that it is spinning off new process for each type of taglet it encounters. However, processing seems sequential and I don't see any other processes in Windows Task Manager. Here is the static initializer code:
     static {
          ic = new IndentControl();
          System.out.println("static: " + Thread.currentThread() + " ic instance: " + ic);
and here is the output of javadoc.exe:
     static: Thread[main,5,main] ic instance: ndstest.util.javadoc.IndentControl@33c78b
     Registered Taglet ndstest.util.javadoc.MandatoryTaglet ...
     static: Thread[main,5,main] ic instance: ndstest.util.javadoc.IndentControl@6c137c
     Registered Taglet ndstest.util.javadoc.OptionalTaglet ...
     static: Thread[main,5,main] ic instance: ndstest.util.javadoc.IndentControl@1104da7
     Registered Taglet ndstest.util.javadoc.MemberInlineTaglet ...
     static: Thread[main,5,main] ic instance: ndstest.util.javadoc.IndentControl@6745b9
     Registered Taglet ndstest.util.javadoc.DescriptionInlineTaglet ...
     static: Thread[main,5,main] ic instance: ndstest.util.javadoc.IndentControl@10a14ad
     Registered Taglet ndstest.util.javadoc.ExampleTaglet ...
     static: Thread[main,5,main] ic instance: ndstest.util.javadoc.IndentControl@1afe460
     Registered Taglet ndstest.util.javadoc.ToDoTaglet ...
Why does the static initializer get called 6 different times? It's mildly annoying and I want to understand why and if it is something I am doing to cause this.
Thanks!

Well, have you ever taken a look at the implementation of the Standard doclet? (Its source code is part of the SCSL distribution.)
The current implemenatation uses a TagletManager to handle/store/load custom taglets.
For each -taglet option, method addCustomTag of this TagletManager is called.
This method creates a new instance of UrlClassLoader and uses loadClass( className ) to load the taglet each time it is called.
So, each of your six taglets is loaded through/in a different ClassLoader context, therefore the static init block is executed six times.

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malcolmmc wrote:
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And this will explain you why there is no way to do this right now:
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http://support.bea.com/application?namespace=askbea&origin=ask_bea_answer.jsp&event=link.view_answer_page_clfydoc&answerpage=solution&page=wls/S-21705.htm
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Pavel.
"Anil" <[email protected]> wrote:
I actually extended PrincipalValidatorImpl and returned java.security.Principal
as the base class.
But still I got the same exception.
PaulF <paulf@reply_in_newsgroup.com> wrote:
On 25 Feb 2004 06:45:50 -0800, Anil <[email protected]> wrote:
Hi,
I have a login custom module which does the authentication for my
application.
Till now I was using WLSUserImpl and WLSGroupIpml and everything was
working fine.
Now to make the LoginModule weblogic independent , I replaced the
User
and Group
classes with my own classes which extend from java.security.Principal.
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java.lang.SecurityException: [Security:090398]Invalid Subject:
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com.isone.security.providers.authentication.ISOGroup@9719f4,
com.isone.security.providers.authentication.ISOGroup@28ebb4,
com.isone.security.providers.authentication.ISOGroup@8ab721,
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com.isone.security.providers.authentication.ISOGroup@c7539,
com.isone.security.providers.authentication.ISOGroup@1e41830,
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com.isone.security.providers.authentication.ISOGroup@8721bd,
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com.isone.security.providers.authentication.ISOGroup@8c6e04,
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com.isone.security.providers.authentication.ISOGroup@13968f1,
com.isone.security.providers.authentication.ISOGroup@18c28a,
com.isone.security.providers.authentication.ISOGroup@18bff68,
com.isone.security.providers.authentication.ISOGroup@2d2da4]
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weblogic.security.service.AuthorizationManager.isAccessAllowed(AuthorizationManager.java:694)
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Hello,
A provisional solution is to use an external controller. For this approach to work, each class has to provide the list of objects being part of its properties. I have prepared two interfaces for this purpose:
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Enumeration getSubordinates();
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return false;
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And here it is the program that access to the directory:
public class TestLDAP {
public TestLDAP() {
public static void main(String[] args) {
try {
System.out.println("Creating controller...");
DatabaseAccessController controller = new DatabaseAccessController();
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controller.store(person);
System.out.println("object stored successfully!");
} catch( Exception e ) {
e.printStackTrace();
}��
If you find a better way of performing the storage of complex objects in the directory, please, let me know.
Regards,
Juan Luis

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[http://java.sun.com/docs/books/tutorial/java/javaOO/nested.html|http://java.sun.com/docs/books/tutorial/java/javaOO/nested.html]
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}~

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darkskimmer wrote:
I'm developing an API and I want to know if there's any way to hide all private class, field and methods when exploring the JAR from eclipse or another IDE. Since the JVM has to be able to see them to access/execute them and and anything it can do you can do then you can't hide them.

Creation of a static class with private methods

I'm new to java programming and am working on a project where I need to have a static class that does a postage calculation that must contain 2 private methods, one for first class and one for priority mail. I can't seem to figure out how to get the weight into the class to do the calculations or how to call the two private methods so that when one of my other classes calls on this class, it retrieves the correct postage. I've got all my other classes working correct and retrieving the information required. I need to use the weight from another class and return a "double". Help!!!
Here's my code:
* Title: Order Control 
* Description: Order Control Calculator using methods and classes
* Copyright: Copyright (c) 2002
* Company: Info 250, sec 001, T/TH 0930
* @author Peggy Blake
* @version 1.0, 10/29/02
import javax.swing.*;
public class ShippingCalculator
static double firstClass, priorityMail;
//how do I get my weight from another class into this method to use??? not sure I understand how it works.
public static double ShippingCalculator(double weight)
String responseFirstClass;
double quantity, shippingCost;
double totalFirstClass, firstClass, priorityMail, totalShipping;
double priorityMail1 = 3.50d;//prioritymail fee up to 1 pound
double priorityMail2 = 3.95d;//prioritymail fee up to 2 pounds
double priorityMail3 = 5.20d;//prioritymail fee up to 3 pounds
double priorityMail4 = 6.45d;//prioritymail fee up to 4 pounds
double priorityMail5 = 7.70d;//prioritymail fee up to 5 pounds
quantity = 0d;//ititialization of quantity
// weight = 0d;//initialization of weight
// shippingCost = 0d;
//calculation of the number of items ordered..each item weights .75 ounces
quantity = (weight/.75);
if (quantity <= 30d)
//add 1 ounce to quantities that weigh less than 30 ounces
weight = (weight + 1);
else
//add 2 ounces to quantities that weigh more than 30 ounces
weight = (weight + 2);
if (weight > 80d)
//message to orderclerk ..order over 5 lbs, cannot process
JOptionPane.showMessageDialog(null, "Order exceeded 5 lbs, cannot process");
//exit system, do not process anything else
System.exit (0);
else
if (weight < 14d)
//send message to customer: ship firstclass or priority, y or n
responseFirstClass = JOptionPane.showInputDialog(null, "Ship first class? y or n?");
if (responseFirstClass.equals("y"))
//compute FirstClass shipping cost
totalFirstClass = ((weight - 1) * .23d) + .34d;
firstClass = totalFirstClass;
else
//compute PriorityMail cost for orders less than 14 ounces
priorityMail = (priorityMail1);
else
if (weight <=16d)
//compute totalshipping for orders up to 16 ounces
priorityMail = (priorityMail1);
else
if (weight <=32d)
//compute totalshipping for orders up to 32 ounces
priorityMail = (priorityMail2);
else
if (weight <=48d)
//compute totalshipping for orders up to 48 ounces
priorityMail = (priorityMail3);
else
if (weight <= 64d)
//compute totalshipping for orders up to 64 ounces
priorityMail = (priorityMail4);
else
//compute totalshipping for orders up to 80 ounces
priorityMail = (priorityMail5);
priorityMail = 0d;
firstClass = 0d;
firstClassMail ();
priorityMailCost ();
//I think this is where I should be pulling the two methods below into my code, but can't figure out how to do it.
shippingCost = priorityMail + firstClass;
return (shippingCost);
}//end method calculate shipping
private static double firstClassMail()//method to get first class ship cost
return (firstClass);
}//end method firstclass shipping
private static double priorityMailCost()//method to get priority mail cost
return (priorityMail);
}//end method priorityMail
}//end class shipping calculator

public class A {
public String getXXX () {
public class B {
A a = new A();
public void init () {
a.getXXX();
}

How to get inputted value in a RTE field on custom page and submit by REST call in 'Sharepoint hosted app'.

Hi I am facing the three questions below.
1. How to use default RTE in custom page in Sharepoint hosted app.
I saw the article of Rich text Editor (ribbon based) in a webpart in SharePoint 2013 and tried it. But it did not work well. I guess it needs code-behind setting, however sharepoint hosted app does not support code-behind.
Does anybody know how to do this?
2. In above case, I placed the below code on custom page and tried to get the field's value when submit button was clicked.
<SharePoint:InputFormTextBox ID="rftDefaultValue"
RichText="true"
RichTextMode="FullHtml" runat="server"
TextMode="MultiLine" Rows="5">
</SharePoint:InputFormTextBox>
In debugger, the returned value was 'undefined'.
var note = $('#hogehoge').val();
Is it possible to get the RTE value? If yes, please let me know how to do this.
3. I need to submit the RTE value using REST call.
In this
article in MSDN, the item creation sample treats single line text field. Does anybody know the sample for RTE?

Hi,
According to your description, you might want to use Rich Text Editor control in your SharePoint hosted app.
First of all, I would suggest you post one question in one thread to make it easier to be discussed, which would also help you get a quick solution.
Though we can add this control into a SharePoint hosted app, however, as we can’t add code behind for it, plus with the potential compatibility issues in different
browsers, I would suggest you use other JavaScript Rich Text Editor plugins instead.
Two JavaScript Rich Text Editor plugins for your reference:
http://quilljs.com/
http://nicedit.com/
If you want to submit the value of Rich Text Editor control to a SharePoint list using REST call, since the content in the Multiple Line of Text column is wrapped
with nested HTML tags, the similar requirement would also be applied to the content to be submitted.
Here is a code snippet about how to update a Multiple Line of Text column for your reference:
updateListItem(_spPageContextInfo.webAbsoluteUrl, "List018", 1);
function updateListItem(siteUrl, listName, itemId)
var itemType = GetItemTypeForListName(listName);
var item = {
"__metadata": { "type": itemType },
"MultiTextEnhanced": "<div><a href='http://bing.com/'>Bing</a> </div>",
"Title": "123"
$.ajax({
url: siteUrl + "/_api/web/lists/getbytitle('" + listName + "')/items(" + itemId + ")",
method: "GET",
headers: { "Accept": "application/json; odata=verbose" },
success: function (data) {
console.log(data);
$.ajax({
url: data.d.__metadata.uri,
type: "POST",
contentType: "application/json;odata=verbose",
data: JSON.stringify(item),
headers: {
"Accept": "application/json;odata=verbose",
"X-RequestDigest": $("#__REQUESTDIGEST").val(),
"X-HTTP-Method": "MERGE",
"If-Match": data.d.__metadata.etag
success: function (data) {
console.log(data);
error: function (data) {
console.log(data);
error: function (data) {
console.log(data);
// Getting the item type for the list
function GetItemTypeForListName(name)
return"SP.Data." + name.charAt(0).toUpperCase() + name.slice(1) + "ListItem";
Thanks
Patrick Liang
Forum Support
Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Subscriber Support,
contact [email protected]
Patrick Liang
TechNet Community Support

Thread safe logging class, using final and static

Hi,
I'm looking through a logging class (which writes entries to a text file and so on) written by someone else, and I'm trying to determine whether it's thread-safe...
Essentially the class looks like this:
public final class Logger {
private static FileOutputStream fout;
private static PrinterWriter pout;
private static final long MaxLength = 100000;
static {
/* basically checks size of logfile, if bigger than 100k, then copy it as bak, and start again */
public void write(String msg) {
/* write entry into log file */
public void writeWithTimeStamp(string msg) {
/* write entry with time stamp into log file */
Now, I could be wrong, but I don't think that the class is thread-safe is it? in order to be thread-safe, I would have to use synchronized before write() and writeWithTimeStamp(), right?
My confusion arises from the use of the keyword "final" at the top of the class. This class isn't being inherited (or rather, there's no reason for the class not to be inheritable)... so what is it's purpose, if there is one?!
And my other question concerns the static block. But I need to describe the current setup first: The Logger class is being use by a file server. File server basically sits there, accepts socket connections from the outside, and takes text files and output them into a local directory. When a new socket connection is created, a new thread is created. As it stands right now, each thread instantiates its own Logger object which seems weird! Bringing me to my question which was, if each thread instantiates its own Logger object, the static block is only ran ONCE, regardless of how many threads (and therefore Logger objects) are created, right??
And wouldn't it be a better idea to simply create only ONE Logger object and pass it by reference to all newly created threads as they are needed so that all threads access the same and only Logger object? (and therefore utilize sychronization)
Thanks!

In JDK 1.4, there are already classes written that do all of that work. Check out the docs for the java.util.logging package. Specifically, check out FileHandler (which can rotate log files if they are greater than a specified size) and LogRecord (which is a standardized way to store logging entries). I believe the class is threadsafe, it doesn't say it isn't. Try it and see. If not, you can easily make a threadsafe wrapper for it (or any class for that matter).
The online documentation is at:
http://java.sun.com/j2se/1.4/docs/api/index.html
If you are curious, the simplest way to make any class threadsafe, if you don't want to or are not able to modify the class code itself is to define another class that calls methods of the original class, but that is synchronized.
Example:
    // NonThreadSafe.java
    public class NonThreadSafe {
        public NonThreadSafe (String s) {
            // Constructor
        public void SomeMethod (int param) {
            // Do some important stuff here...
        public int AnotherMethod (boolean param) {
            // Do some more important stuff here...
    // ThreadSafeWrapper.java
    public class ThreadSafeWrapper {
        protected NonThreadSafe nts;
        public ThreadSafeWrapper (String s) {
            nts = new NonThreadSafe(s);
        public synchronized void SomeMethod (int param) {
            nts.SomeMethod(param);
        public synchronized int AnotherMethod (boolean param) {
            return nts.AnotherMethod(param);
        public NonThreadSafe GetNonThreadSafe () {
            return nts;
    };Unfortunately, ThreadSafeWrapper isn't derived from NonThreadSafe, so you are somewhat limited in what you can do with it compared to what you could do with NonThreadSafe. AFAIK, you can't override unsynchronized methods with synchronized ones.
Another thing you could do is just write a method that writes to your logging class, and synchronize just that method. For example:
    // ThreadSafeLogger.java
    public class ThreadSafeLogger {
        public static synchronized void LogMessage (MyLogger log, String msg) {
            log.writeString(msg);
    // In another thread, far, far away:
        ThreadSafeLogger.LogMessage(theLog, "Blah");
        ...Hope that helps.
Jason Cipriani
[email protected]
[email protected]

Addition of custom tab and fields in cProject

Hello Experts,
I need to add custom tab and fields in cProject project definition level(type DPO).
As it is given in IMG help, there are two ways of doing this.
1) Addition of data in CI_DPR_PROJECT and Creating the field groups and including these fields in the field groups.
2) Creating the custom tab and assigning the webDynpro component to it.
I tried the first method. Here I am able to see the field group as the tab in cProjects but the fields included in CI_DPR_PROJECT are not appearing.
Please let me know how I can see the fields which are added to CI include.
Also,
For the second method what is the meaning of implementing the WebDynpro interface DPR_CUST_EXT_INTF ?
I appreciate if anyone explains step by step procedure for this.
Thanks in advance.
Regards
Maddy

hi Madhu,
By creating a custom tab and adding field you can do that.
Pls. follw the steps as below:
1)Enhance Data base table:
Follow the path:
Spro ->Collaboration Project ->Global Enhancement to Project elements ->Enhance Database table
You will get details about Object category, its Entity table and Structure with Customer Include/APPEND Structure
Then go to Se11 and make changes as mentioned below:
Add the fields required on cProjects Screen in table DPR_PROJECT in the Include "CI_DPR_PROJECT"
2)Run Program DPR_CUST_FLDS_IN_FC_MAP and pass structure : DPR_TS_PROJECT_EXTENDED_ATTR
Run Program DPR_CUST_FLDS_IN_FC_MAP in transaction code SE38 and execute it and in Structure w. Customer Include field, pass structure: DPR_TS_PROJECT_EXTENDED_ATTR, this will generate transport request
3)Set up field control.
Copy std. field control and create new.
Path:Spro ->Collaboration Project ->Global Enhancement to Project elements ->Set up field control
4)Create field group
Path: Spro ->Collaboration Project ->Global Enhancement to Project elements ->Set up field control
Define group to your field here for your field control.
5)Define Field groups for Customer Fields
Path: Spro ->Collaboration Project ->Global Enhancement to Project elements -> Define Field groups for Customer Fields
Make entry here. Name of group is Name of tab page in cProjects front end
Define your customer fields for field group
6)Assign field control to your Project Type:
Path : Spro ->Collaboration Project ->Structure ->Define Project type
Assign custom defined field control to the project type in Field contol field at the bottom.
With this seetings you should be able to see your custom defined fields in custom defined tab page.
Regards,
Niraj

Custom Taglets and static class fields/methods...

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