source: main/trunk/release-kits/shared/core/ant-installer/src/org/tp23/antinstaller/input/SelectInput.java@ 30052

/* 
 * 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 java.util.Locale;
import org.tp23.antinstaller.InstallerContext;
import org.tp23.antinstaller.ValidationException;
import org.tp23.antinstaller.Installer;


/**
 *
 * <p>Input type to choose a single value from a (numbered) list of options </p>
 * <p>N.B. subclassed for TargetSelectInput </p>
 * <p>Copyright: Copyright (c) 2004</p>
 * <p>Company: tp23</p>
 * @author Paul Hinds
 * @version $Id: SelectInput.java,v 1.4 2006/12/07 02:50:27 teknopaul Exp $
 */
public class SelectInput
    extends InputField {

    private int optionIdx = 0;
    private SelectInput.Option[] options;
    private boolean useAsLocale = false;

    public SelectInput() {
    }

    public void setUseAsLocale(boolean ual) {
        this.useAsLocale = ual;
    }


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

    public void setOptions(SelectInput.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( org.tp23.antinstaller.Installer.langPack != null ) {
                try {
                    String r = org.tp23.antinstaller.Installer.langPack.getString( getProperty() + "." + idx + ".displayText" );
                    return r;
                } catch ( java.util.MissingResourceException mre ) {} // restoring original comment: ignore, signifies no language packs installed
            }
            return text;
        }
    }
    
    public void setValue(String value){
        setInputResult(value);
        if ( useAsLocale ) {
            //expect something like 'en' or or something like 'en_US'
            Locale newLocale = null;
            if ( value.length() == 2 ) {
                newLocale = new Locale(value);
                Locale.setDefault( newLocale );
            } else if ( value.length() == 5 ) {
                newLocale = new Locale(value.substring(0,2), value.substring(3,5));
                Locale.setDefault( newLocale );
            } //else { you're out of luck }
            org.tp23.antinstaller.Installer.langPack = ResourceBundle.getBundle("resources.LanguagePack", newLocale );
        }
    }
    
    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("Select:displayText must be set");
            return false;
        }
        if(getProperty()==null){
            System.out.println("Select:property must be set");
            return false;
        }
        if(getDefaultValue()==null){
            System.out.println("Select:defaultValue must be set");
            return false;
        }
        if(getOptions()==null){
            System.out.println("Select:option must have at least two options");
            return false;
        }
        if(getOptions().length<2){
            System.out.println("Select: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("Select:option:text must be set");
                return false;
            }
            if(o.value==null){
                System.out.println("Select: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("Select:option:Default must be one of the options");
            return false;
        }
        return true;
    }
}