source: other-projects/trunk/realistic-books/packages/AntInstaller/src/org/tp23/antinstaller/input/LargeSelectInput.java@ 19253

/* 
 * Copyright 2005 Paul Hinds
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.tp23.antinstaller.input;


import java.util.MissingResourceException;
import java.util.ResourceBundle;

import org.tp23.antinstaller.InstallerContext;
import org.tp23.antinstaller.ValidationException;



/**
 *
 * <p>Input type to choose a single value from a (numbered) list of options </p>
 * <p>This input is designed to handle larger lists of options </p>
 * <p>Copyright: Copyright (c) 2004</p>
 * <p>Company: tp23</p>
 * @author Paul Hinds
 * @version $Id: LargeSelectInput.java,v 1.3 2006/12/07 02:50:27 teknopaul Exp $
 */
public class LargeSelectInput
    extends InputField{

    // i18n support
    private static ResourceBundle langPack = null;
    private int optionIdx = 0;
    static{
        try {
            langPack = ResourceBundle.getBundle("resources.LanguagePack");
        } catch (MissingResourceException e) {
            // ignore, signifies no lang packs installed  
        }
    }

    private LargeSelectInput.Option[] options;

    public LargeSelectInput() {
    }


    public LargeSelectInput.Option[] getOptions() {
        return options;
    }

    public void setOptions(LargeSelectInput.Option[] options) {
        this.options = options;
    }
    public Option getNewOption(){
        return new Option();
    }
    
    public class Option {

        private int idx = ++optionIdx;
        private String text;
        public String value;
        public void setText(String text) {
            this.text = text;
        }
        public String getText() {
            if(langPack != null){
                return langPack.getString(getProperty() + "." + idx +".displayText");
            }
            return text;
        }
    }
    
    public void setValue(String dir){
        setInputResult(dir);
    }
    /**
     * Called to validate the user input
     */
    public boolean validate(InstallerContext cxt) throws ValidationException{
        if(getInputResult()==null)return false;
        String value = getInputResult();
        boolean ok = false;
        for (int i = 0; i < options.length; i++) {
            ok |= options[i].value.equals(value);
        }
        return ok;
    }



    /**
     * Used by checkConfig to validate the configuration file.
     * Not used at runtime.
     * @return boolean
     */
    public boolean validateObject() {
        if(getDisplayText()==null){
            System.out.println("LargeSelect:displayText must be set");
            return false;
        }
        if(getProperty()==null){
            System.out.println("LargeSelect:property must be set");
            return false;
        }
        if(getDefaultValue()==null){
            System.out.println("LargeSelect:defaultValue must be set");
            return false;
        }
        if(getOptions()==null){
            System.out.println("LargeSelect:option must have at least two options");
            return false;
        }
        if(getOptions().length<2){
            System.out.println("LargeSelect:option must have at least two options");
            return false;
        }
        for (int i = 0; i < getOptions().length; i++) {
            Option o = getOptions()[i];
            if(o.getText()==null){
                System.out.println("LargeSelect:option:text must be set");
                return false;
            }
            if(o.value==null){
                System.out.println("LargeSelect:option:value must be set");
                return false;
            }
        }
        boolean defaultExists = false;
        for (int i = 0; i < getOptions().length; i++) {
            Option o = getOptions()[i];
            if(o.value.equals(getDefaultValue())){
                defaultExists=true;
            }
        }
        if(!defaultExists){
            System.out.println("LargeSelect:option:Default must be one of the options");
            return false;
        }
        return true;
    }
}