com.livinglogic.ul4.FunctionStr.java Source code

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Here is the source code for com.livinglogic.ul4.FunctionStr.java

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/*
** Copyright 2009-2014 by LivingLogic AG, Bayreuth/Germany
** All Rights Reserved
** See LICENSE for the license
*/

package com.livinglogic.ul4;

import java.util.List;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.text.SimpleDateFormat;
import java.util.Date;

import org.apache.commons.lang.StringUtils;

public class FunctionStr extends Function {
    public String nameUL4() {
        return "str";
    }

    private static final Signature signature = new Signature("obj", null);

    public Signature getSignature() {
        return signature;
    }

    public Object evaluate(BoundArguments args) {
        return call(args.get(0));
    }

    public static SimpleDateFormat strDateFormatter = new SimpleDateFormat("yyyy-MM-dd");
    private static SimpleDateFormat strDateTimeFormatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
    private static SimpleDateFormat strTimestampMicroFormatter = new SimpleDateFormat(
            "yyyy-MM-dd HH:mm:ss.SSS'000'");

    public static String call() {
        return "";
    }

    public static String call(Object obj) {
        if (obj == null)
            return "";
        else if (obj instanceof Undefined)
            return "";
        else if (obj instanceof Boolean)
            return ((Boolean) obj).booleanValue() ? "True" : "False";
        else if (obj instanceof Integer || obj instanceof Byte || obj instanceof Short || obj instanceof Long
                || obj instanceof BigInteger)
            return obj.toString();
        else if (obj instanceof Double || obj instanceof Float)
            return StringUtils.replace(obj.toString(), ".0E", "E").toLowerCase();
        else if (obj instanceof BigDecimal) {
            String result = obj.toString();
            if (result.indexOf('.') < 0 && result.indexOf('E') < 0 && result.indexOf('e') < 0)
                result += ".0";
            return result;
        } else if (obj instanceof String)
            return (String) obj;
        else if (obj instanceof Date) {
            if (BoundDateMethodMicrosecond.call((Date) obj) != 0)
                return strTimestampMicroFormatter.format(obj);
            else
                return strDateTimeFormatter.format(obj);
        } else if (obj instanceof Color)
            return obj.toString();
        else if (obj instanceof TimeDelta)
            return obj.toString();
        else if (obj instanceof MonthDelta)
            return obj.toString();
        else
            return FunctionRepr.call(obj);
    }
}