source: other-projects/trunk/realistic-books/packages/AntInstaller/src/org/tp23/antinstaller/input/ValidatedTextInput.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.regex.Matcher;
import java.util.regex.Pattern;

import org.apache.tools.ant.BuildException;
import org.tp23.antinstaller.InstallerContext;
import org.tp23.antinstaller.ValidationException;


/**
 *
 * <p>Free text input type with validation using regular expressions</p>
 * @author Paul Hinds
 * @version $Id: ValidatedTextInput.java,v 1.2 2006/12/21 00:03:09 teknopaul Exp $
 */
public class ValidatedTextInput
    extends InputField{

    private String regex;
    private Pattern pattern;
    //private RegexpMatcher matcher; // use ant version in an attempt to support jdk1.3

    public ValidatedTextInput() {
    }

    public void setValue(String dir){
        setInputResult(dir);
    }
    public String getRegex() {
        return regex;
    }
    public void setRegex(String regex) {
        this.regex = regex;
        try {
            //matcher = new RegexpMatcherFactory().newRegexpMatcher();
            //matcher.setPattern(regex);
            pattern = Pattern.compile(regex);
        }
        catch (BuildException ex) {
            throw new InputException("Invalid regex in Validated text input");
        }
    }

    /**
     * Called to validate the user input
     */
    public boolean validate(InstallerContext cxt) throws ValidationException{
        try {
            if (getInputResult() == null)return false;
            String toTest = getInputResult();

            Matcher matcher = pattern.matcher(toTest);
            //boolean matches =  matcher.matches(toTest);
            boolean matches =  matcher.matches();

            return matches;
        }
        catch (Throwable e) {
            cxt.log(e);
            return false;
        }
    }

    /**
     * Used by checkConfig to validate the configuration file.
     * Not used at runtime.
     * @return boolean
     */
    public boolean validateObject() {
        if(getDisplayText()==null){
            System.out.println("Validated:displayText must be set");
            return false;
        }
        if(getProperty()==null){
            System.out.println("Validated:property must be set");
            return false;
        }
        if(getDefaultValue()==null){
            System.out.println("Validated:defaultValue must be set");
            return false;
        }
        if(getRegex()==null){
            System.out.println("Validated:regex must be set");
            return false;
        }
        try{
            //matcher = new RegexpMatcherFactory().newRegexpMatcher();
            //matcher.setPattern(getRegex());
        }
        catch(Exception e){
            System.out.println("Validated:regex must compile");
            
        }
        return true;
    }
}