AvatarFunction.java

package net.tooan.ynpay.commons.webapp.ext.function;

import net.tooan.ynpay.commons.helper.Encrypt;
import org.bee.tl.core.Context;
import org.bee.tl.core.Function;

/**
 * Created with IntelliJ IDEA.
 * User: Jing
 * Date: 13-11-10
 * Time: 下午4:51
 */
public class AvatarFunction implements Function {

    private static final String href = "http://www.gravatar.com/avatar/";
    private static final String defaultAvatar = href + "00000000000000000000000000000000";

    @Override
    public String call(Object[] paras, Context ctx) {
        String avatar;
        if (paras.length == 0) {
            return defaultAvatar;
        }
        avatar = href + Encrypt.md5(String.valueOf(paras[0]));
        if (paras.length > 1) {
            avatar += "?s=" + String.valueOf(paras[1]);
        }
        return avatar;
    }
}