Method coerceToBoolean

java/org/apache/el/lang/ELSupport.java:243–274

Convert an object to Boolean. Null and empty string are false. @param ctx the context in which this conversion is taking place @param obj the object to convert @param primitive is the target a primitive in which case coercion to null is not permitted @return the Boolean value of the ob

(final ELContext ctx, final Object obj, boolean primitive)

     * @throws ELException if object is not Boolean or String
     */
    public static Boolean coerceToBoolean(final ELContext ctx, final Object obj, boolean primitive) throws ELException {

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

        if (!COERCE_TO_ZERO && !primitive) {
            if (obj == null) {
                return null;
            }
        }

        if (obj == null || "".equals(obj)) {
            return Boolean.FALSE;
        }
        if (obj instanceof Boolean) {
            return (Boolean) obj;
        }
        if (obj instanceof String) {
            return Boolean.valueOf((String) obj);
        }

        throw new ELException(MessageFactory.get("error.convert", obj, obj.getClass(), Boolean.class));
    }

    private static Character coerceToCharacter(final ELContext ctx, final Object obj) throws ELException {