Android Open Source - android-mvc-framework Base Validations Util

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License

The source code is released under:
Apache License
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Java Source Code

package com.android_mvc.framework.controller.validation;
//from   ww w  .j a  v  a2  s. co  m
import java.util.regex.Pattern;

import com.android_mvc.framework.activities.IBaseActivity;

/**
 * ?????????????????????
 * @author id:language_and_engineering
 *
 */
public class BaseValidationsUtil
{
    // ?????????????????????????
    protected ActivityParams params;

    // ???????????
    protected ValidationResult vres;


    /**
     * ?????????????????????????????????????????????????????????
     */
    protected void initValidationOf(IBaseActivity activity)
    {
        params = activity.toParams();
        vres = new ValidationResult();
    }


    // ------------- assert?????


    /**
     * ?????????????????????????????????
     */
    protected void assertNotEmpty(String key)
    {
        String s = (String)params.getValue(key);

        // 1?????????????????
        if( isEmpty( s ) )
        {
            vres.err( params.getName(key) + "???????????????????????");
        }
    }


    /**
     * ???????????????????????????????????????????????????????????
     */
    protected void assertValidInteger(String key)
    {
        String s = (String)params.getValue(key);
        if( isEmpty(s) ) return;

        // ??????????????????????????????????????????????????
        if( ! isNumberCharSequence(s) )
        {
            // ?????????
            vres.err( params.getName(key) + "????????????????????????????????????????");
        }
        else
        if( ! validParsableAsInteger(s) )
        {
            // ??????????????
            vres.err( params.getName(key) + "??????????????????????????");
        }
    }


    /**
     * ???????????????????????????????????????????????????
     */
    protected void assertNumberOperation(String key, NumberComparator nc)
    {
        String s = (String)params.getValue(key);
        if( ! validInteger(s) ) return;
        long target_value = Long.parseLong(s);

        // ?????
        if( "greaterThan".equals(nc.type_code) && ! (target_value > nc.value))
        {
            vres.err( params.getName(key) + "??????" + nc.value + "????????????????????????????????");
        }
            // TODO: ??????????
    }


    /**
     * ???????????????????????????????????????????
     */
    protected void assertStringHead(String key, String headerTemplate)
    {
        String s = (String)params.getValue(key);
        if( isEmpty(s) ) return;

        // ???????????????????
        if( s.indexOf(headerTemplate) != 0 )
        {
            vres.err( params.getName(key) + "????" + headerTemplate +"???????????????????????????");
        }
    }


    // ------------ ??????


    /**
     * ???????????????????
     */
    protected NumberComparator greaterThan( long l )
    {
        return new NumberComparator( l, "greaterThan" );
    }


    /**
     * ????????????????????
     */
    protected ValidationResult getValidationResult()
    {
        return vres;
    }


    // ------------ ????


    /**
     * ???????????????????????
     */
    private boolean isEmpty(String s)
    {
        return ( ( s == null ) || ( s.length() < 1 ) );
    }


    /**
     * ????????????????????????????????
     */
    private boolean isNumberCharSequence(String s)
    {
        return ( Pattern.compile("^[0-9]+$").matcher(s).matches() );
    }


    /**
     * ????????????????????????????
     */
    private boolean validParsableAsInteger( String s )
    {
        // ?????
        Long long_value = Long.parseLong(s);

        // ?????????????????????????????????????0???????
        return String.valueOf( long_value ).equals(s);
    }


    /**
     * ???????????????????
     */
    private boolean validInteger( String s )
    {
        return ( ! isEmpty(s) ) && ( isNumberCharSequence(s) ) && validParsableAsInteger(s);
    }


}
Java Source Code List
