// This Source Code is in the Public Domain per: http://unlicense.org
package org.litesoft.bo.attributes;

import org.litesoft.commonfoundation.base.*;
import org.litesoft.core.simpletypes.*;

import java.util.*;

public class FormatControl implements PropertyOfAMD {
    public static FormatControl of( String pFormat ) {
        return null != (pFormat = ConstrainTo.significantOrNull( pFormat )) ? getInstance( pFormat ) : null;
    }

    public static NumericFormatControl get( AttributeMetaData pAMD ) {
        PropertyOfAMD zProperty = pAMD.getProperties().get( MAP_KEY );
        if ( zProperty != null ) {
            return ((FormatControl) zProperty).mValue;
        }
        return null;
    }

    private static synchronized FormatControl getInstance( String pFormat ) {
        FormatControl zInstance = sInstances.get( pFormat );
        if ( zInstance == null ) {
            sInstances.put( pFormat, zInstance = new FormatControl( NumericFormatControl.rehydrate( pFormat ) ) );
        }
        return zInstance;
    }

    private static HashMap<String, FormatControl> sInstances = new HashMap<String, FormatControl>();

    private static final String MAP_KEY = "FormatControl";

    private FormatControl( NumericFormatControl pValue ) {
        mValue = pValue;
    }

    private NumericFormatControl mValue;

    @Override
    public String toString() {
        return MAP_KEY + ".of( \"" + mValue.desiccate() + "\" )";
    }

    public String getMapKey() {
        return MAP_KEY;
    }

    @Override
    public boolean equals( Object them ) {
        return (this == them) || ((them != null) && (this.getClass() == them.getClass()) && (this.mValue == ((FormatControl) them).mValue));
    }

    @Override
    public int hashCode() {
        return mValue.hashCode();
    }
}