Okay, here ya go. As usual, change the variables, methods and params to
suit your requirements.
----------
Usage example (see the TLD for full list -
and/or add your own. Be sure to reflect any
changes in the TLD in the class as well):
<partner:validation baseName="name" isNotNull="true"
isWithinMaxLength="true" parameter="50"/>
<partner:validation baseName="areaCode" isNotNull="true"
isWithinMaxLength="true" parameter="3"/>
----------
TLD:
<?xml version="1.0" ?>
<taglib>
<tlibversion>0.0</tlibversion>
<jspversion>1.0</jspversion>
<shortname>Partner Tag Library</shortname>
<tag>
<name>validation</name>
<tagclass>com.tessco.partner.web.taglib.ValidationTag</tagclass>
<bodycontent>empty</bodycontent>
<attribute>
<name>baseName</name>
<required>true</required>
<rtexprvalue>false</rtexprvalue>
</attribute>
<attribute>
<name>parameter</name>
<required>false</required>
<rtexprvalue>false</rtexprvalue>
</attribute>
<attribute>
<name>isNotNull</name>
<required>false</required>
<rtexprvalue>false</rtexprvalue>
</attribute>
<attribute>
<name>isBoolean</name>
<required>false</required>
<rtexprvalue>false</rtexprvalue>
</attribute>
<attribute>
<name>isInteger</name>
<required>false</required>
<rtexprvalue>false</rtexprvalue>
</attribute>
<attribute>
<name>isLong</name>
<required>false</required>
<rtexprvalue>false</rtexprvalue>
</attribute>
<attribute>
<name>isDouble</name>
<required>false</required>
<rtexprvalue>false</rtexprvalue>
</attribute>
<attribute>
<name>isFloat</name>
<required>false</required>
<rtexprvalue>false</rtexprvalue>
</attribute>
<attribute>
<name>isGreaterThan</name>
<required>false</required>
<rtexprvalue>false</rtexprvalue>
</attribute>
<attribute>
<name>isLessThan</name>
<required>false</required>
<rtexprvalue>false</rtexprvalue>
</attribute>
<attribute>
<name>isDate</name>
<required>false</required>
<rtexprvalue>false</rtexprvalue>
</attribute>
<attribute>
<name>isFutureDate</name>
<required>false</required>
<rtexprvalue>false</rtexprvalue>
</attribute>
<attribute>
<name>isPastDate</name>
<required>false</required>
<rtexprvalue>false</rtexprvalue>
</attribute>
<attribute>
<name>isWithinMaxLength</name>
<required>false</required>
<rtexprvalue>false</rtexprvalue>
</attribute>
<attribute>
<name>isPhone</name>
<required>false</required>
<rtexprvalue>false</rtexprvalue>
</attribute>
<attribute>
<name>isEmail</name>
<required>false</required>
<rtexprvalue>false</rtexprvalue>
</attribute>
<attribute>
<name>isZipCode</name>
<required>false</required>
<rtexprvalue>false</rtexprvalue>
</attribute>
<attribute>
<name>isCreditCardNumber</name>
<required>false</required>
<rtexprvalue>false</rtexprvalue>
</attribute>
</tag>
</taglib>
----------
Tag Handler:
package com.tessco.partner.web.taglib;
import java.io.IOException;
import java.util.List;
import java.util.ArrayList;
import javax.servlet.jsp.JspException;
import javax.servlet.jsp.PageContext;
import javax.servlet.jsp.JspWriter;
import javax.servlet.jsp.tagext.TagSupport;
import javax.servlet.ServletRequest;
import com.tessco.partner.web.validation.DefaultValidator;
/**
ValidationTag.java
@description: generates an HTML element that is
consistent with the server-side validation logic.
example:
<code>
The following jsp code :
<partner:validation baseName="logon" isNotNull="true"
isWithinMaxLength="true" parameter="50"/>
generates the following HTML:
<input type="hidden" name="validations" value="nn-ml50|logon" />
</code>
*/
public final class ValidationTag extends TagSupport {
priave boolean isNotNull = false;
private boolean isBoolean = false;
private boolean isInteger = false;
private boolean isLong = false;
private boolean isDouble = false;
private boolean isFloat = false;
private boolean isGreaterThan = false;
private boolean isLessThan = false;
private boolean isDate = false;
private boolean isFutureDate = false;
private boolean isPastDate = false;
private boolean isWithinMaxLength = false;
private boolean isPhone = false;
private boolean isEmail = false;
private boolean isCreditCardNumber = false;
private boolean isZipCode = false;
private String baseName = null;
private String parameter = "";
public void setBaseName( String baseName ) {
this.baseName = baseName;
}
public String getBaseName(){
return baseName;
}
public void setParameter( String parameter ) {
this.parameter = parameter;
}
public String getParameter(){
return baseName;
}
public void setIsNotNull( boolean isNotNull ){
this.isNotNull = isNotNull;
}
public void setIsBoolean( boolean isBoolean ){
this.isBoolean = isBoolean;
}
public void setIsInteger( boolean isInteger ){
this.isInteger = isInteger;
}
public void setIsLong( boolean isLong ){
this.isLong = isLong;
}
public void setIsDouble( boolean isDouble ){
this.isDouble = isDouble;
}
public void setIsFloat( boolean isFloat ){
this.isFloat = isFloat;
}
public void setIsGreaterThan( boolean isGreaterThan ){
this.isGreaterThan = isGreaterThan;
}
public void setIsLessThan( boolean isLessThan ){
this.isLessThan = isLessThan;
}
public void setIsDate( boolean isDate ){
this.isDate = isDate;
}
public void setIsFutureDate( boolean isFutureDate ){
this.isFutureDate = isFutureDate;
}
public void setIsPastDate( boolean isPastDate ){
this.isPastDate = isPastDate;
}
public void setIsWithinMaxLength( boolean isWithinMaxLength ){
this.isWithinMaxLength = isWithinMaxLength;
}
public void setIsPhone( boolean isPhone ){
this.isPhone = isPhone;
}
public void setIsEmail( boolean isEmail ){
this.isEmail = isEmail;
}
public void setIsCreditCardNumber( boolean isCreditCardNumber ){
this.isCreditCardNumber = isCreditCardNumber;
}
public void setIsZipCode( boolean isZipCode ){
this.isZipCode = isZipCode;
}
public final int doStartTag() throws JspException {
String fullName = generateName();
// Print the results to our output writer
JspWriter writer = pageContext.getOut();
try {
writer.print( " <input type=\"hidden\" name=\"validations\"
value=\"" );
writer.print( fullName );
writer.print( "\" />" );
} catch (IOException e) {
//TO DO: Log critical exception!
throw new JspException(e.toString());
} finally{//re-initialize parameters
isNotNull = false;
isBoolean = false;
isInteger = false;
isLong = false;
isDouble = false;
isFloat = false;
isGreaterThan = false;
isLessThan = false;
isDate = false;
isFutureDate = false;
isPastDate = false;
isWithinMaxLength = false;
isPhone = false;
isEmail = false;
baseName = null;
parameter = "";
return SKIP_BODY;
}
}
private String generateName(){
StringBuffer nameBuffer = new StringBuffer();
List validationList = new ArrayList();
if( isNotNull ){
validationList.add( DefaultValidator.IS_NOT_NULL );
}
if( isBoolean ){
validationList.add( DefaultValidator.IS_BOOLEAN );
}
if( isInteger )
validationList.add( DefaultValidator.IS_INTEGER );
}
if( isLong ){
validationList.add( DefaultValidator.IS_LONG );
}
if( isDouble ){
validationList.add( DefaultValidator.IS_DOUBLE );
}
if( isFloat ){
validationList.add( DefaultValidator.IS_FLOAT );
}
if( isGreaterThan ){
validationList.add( DefaultValidator.IS_GREATER_THAN +
parameter );
}
if( isLessThan ){
validationList.add( DefaultValidator.IS_LESS_THAN + parameter );
}
if( isDate ){
validationList.add( DefaultValidator.IS_DATE );
}
if( isFutureDate ){
validationList.add( DefaultValidator.IS_FUTURE_DATE );
}
if( isPastDate ){
validationList.add( DefaultValidator.IS_PAST_DATE );
}
if( isWithinMaxLength ){
validationList.add( DefaultValidator.IS_WITHIN_MAX_LENGTH +
parameter );
}
if( isPhone ){
validationList.add( DefaultValidator.IS_PHONE );
}
if( isEmail ){
validationList.add( DefaultValidator.IS_EMAIL );
}
if( isCreditCardNumber ){
validationList.add( DefaultValidator.IS_CREDIT_CARD_NUMBER );
}
if( isZipCode ){
validationList.add( DefaultValidator.IS_ZIP_CODE );
}
for( int i = 0; i < validationList.size(); i++ ){
nameBuffer.append( validationList.get( i ) );
if( i + 1 < validationList.size() ){//if more validations, add
delimiter
nameBuffer.append("*");
}
}
if( validationList.size() > 0 ){
nameBuffer.append("|");
}
nameBuffer.append( baseName );
return nameBuffer.toString();
}
}
--
To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]>
For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
