com.excilys.ebi.bank.web.tld.Functions.java Source code

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Here is the source code for com.excilys.ebi.bank.web.tld.Functions.java

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/**
 * Copyright 2011-2012 eBusiness Information, Groupe Excilys (www.excilys.com)
 *
 * 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 com.excilys.ebi.bank.web.tld;

import java.math.BigDecimal;
import java.util.Collection;

import javax.servlet.http.HttpServletRequest;

import org.joda.time.DateTime;
import org.springframework.security.web.util.UrlUtils;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;

import com.excilys.ebi.bank.web.interceptor.page.WebPage;

public class Functions {

    public static String url(String url) {
        // don't touch absolute URLs
        if (UrlUtils.isAbsoluteUrl(url))
            return url;

        // normalize relative URLs against a context root
        if (url.startsWith("/"))
            return (ctx() + url);
        else
            return url;
    }

    public static String ctx() {

        HttpServletRequest request = ServletRequestAttributes.class
                .cast(RequestContextHolder.getRequestAttributes()).getRequest();
        return request.getContextPath();
    }

    public static String amount(BigDecimal amount) {

        StringBuilder buf = new StringBuilder();
        buf.append("<span class=\"figure ").append(amount.compareTo(BigDecimal.valueOf(0.0)) >= 0 ? "green" : "red")
                .append("\">").append(amount).append("</span>");
        return buf.toString();
    }

    public static String ifThenElse(boolean when, String then, String otherwise) {
        return when ? then : otherwise;
    }

    public static boolean hasAncestor(WebPage page, WebPage ancestor) {
        return page.hasAncestor(ancestor);
    }

    public static int year(DateTime dateTime) {
        return dateTime.year().get();
    }

    public static int monthOfYear(DateTime dateTime) {
        return dateTime.monthOfYear().get();
    }

    public static String monthOfYearAsText(DateTime dateTime) {
        return dateTime.monthOfYear().getAsText();
    }

    public static int size(Object object) {
        return object instanceof Collection ? Collection.class.cast(object).size() : 0;
    }
}