Method coerceToString

java/org/apache/el/lang/ELSupport.java:491–522

Coerce an object to a string. @param ctx the context in which this conversion is taking place @param obj the object to convert @return the String value of the object

(final ELContext ctx, final Object obj)

     * @return the String value of the object
     */
    public static String coerceToString(final ELContext ctx, final Object obj) {

        if (ctx != null) {
            boolean originalIsPropertyResolved = ctx.isPropertyResolved();
            try {
                String result = ctx.getELResolver().convertToType(ctx, obj, String.class);
                if (ctx.isPropertyResolved()) {
                    return result;
                }
            } finally {
                ctx.setPropertyResolved(originalIsPropertyResolved);
            }
        }

        if (obj == null) {
            return "";
        } else if (obj instanceof String) {
            return (String) obj;
        } else if (obj instanceof Enum<?>) {
            return ((Enum<?>) obj).name();
        } else {
            try {
                return obj.toString();
            } catch (ELException e) {
                // Unlikely but you never know
                throw e;
            } catch (Throwable t) {
                ExceptionUtils.handleThrowable(t);
                throw new ELException(t);
            }
        }
    }

    /**
     * Coerces an object to the specified target type.