Izpack: Validator doesn't work?

StackOverflow https://stackoverflow.com/questions/7598073

  •  05-02-2021
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Question

I have a field description in my "UserInputSpec.xml" file.

<field type="radio" variable="selected.source" >
        <description align="left" txt="Please select TBPAPIIntegrator data source:" id="combo.text" />
        <spec>
            <choice txt="IMKB Server"      id="combo.item.imkb"     value="imkb"/>
            <choice txt="Exernal Database" id="combo.item.database" value="db"/>
        </spec>
        <validator class="com.j32bit.installer.validator.SelectSourceValidator" txt="Please select one source!" >
            <param name="selected.source" value="${selected.source}"/>
        </validator>
    </field>

and this my Validator class:

package com.j32bit.installer.validator;

import java.util.Map;
import com.izforge.izpack.panels.ProcessingClient;
import com.izforge.izpack.panels.Validator;

public class SelectSourceValidator implements Validator{

    @Override
    public boolean validate(ProcessingClient client) {

        Map<String, String> params = client.getValidatorParams();

        if( params.get("selected.source").equals("imkb")
                ||  params.get("selected.source").equals("db"))
            return true;

        return false;
    }
}

Also variable deceleration as below in "Installer.xml":

<variables>
    <variable name="selected.source" value="" />
</variables>

Radio buttons comes unselected. While buttons still unselected if I click "next" button installer continuous the next page and validation does not work.

enter image description here

enter image description here

Please help! Thanks in advance.

Was it helpful?

Solution

It seems like declaring a variable in <dynamicvariables></dynamicvariables> or in <variables></variables> does not work at all. Instead you can just write a variable name to a field and it can be used and referenced in anywhere in installer.

I also removed validator from field declaration in UserInputPanelSpec.xml and moved it to panel declaration in Installer.xml.

Installer.xml:

<panels>
    <panel classname="UserInputPanel" id="select.source" >
        <validator classname="com.j32bit.installer.validator.SourceValidator"/>
    </panel>
</panels>

UserInputPanelSpec.xml:

<!-- SELECT SOURCE PANEL  -->
<panel id="select.source">
    <field type="radio" variable="selected.source" >
        <description align="left" txt="Please select TBPAPIIntegrator data source:" id="radio.text" />
            <spec>
                <choice txt="IMKB" id="radio.item.imkb" value="imkb" />
                <choice txt="Exernal Database" id="radio.item.db" value="db" />
            </spec>
    </field>
</panel>

Now it is working with no problem.

OTHER TIPS

For field, it can help if you include validator element inside the spec one:

<field type="radio" variable="selected.source" >
    <description align="left" txt="Please select TBPAPIIntegrator data source:" id="combo.text" />
    <spec>
        <choice txt="IMKB Server"      id="combo.item.imkb"     value="imkb"/>
        <choice txt="Exernal Database" id="combo.item.database" value="db"/>

        <validator class="com.j32bit.installer.validator.SelectSourceValidator" txt="Please select one source!" >
            <param name="selected.source" value="${selected.source}"/>
        </validator>
    </spec>
</field>
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