/*
* The JabaJaba class library
* Copyright (C) 1997-1998 ASAMI, Tomoharu (tasami@ibm.net)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
package com.AsamiOffice.jaba2.util;
/**
* Assert is a utility class for assertion facility.
* Assert is used to implement invariant, pre-condition, post-condition.
*
* @since Mar. 24, 1998
* @version Apr. 15, 1998
* @author ASAMI, Tomoharu (tasami@ibm.net)
*/
public class Assert {
/**
* Do check whether the cond is true or false.
* If the cond is false, InternalError exception is raised.
*
* @param cond assertion condition
*/
public static final void check(boolean cond) {
if (cond == false) {
throw (new InternalError());
}
}
/**
* Do check whether the cond is true or false.
* If the cond is false, InternalError exception is raised.
* The message is set up to the information of InternalError.
*
* @param cond assertion condition
* @param message message for assertion
*/
public static final void check(boolean cond, String message) {
if (cond == false) {
throw (new InternalError(message));
}
}
/**
* Do check whether the cond is true or false.
* If the cond is false, InternalError exception is raised.
* The obj is set up to the information of InternalError.
*
* @param cond assertion condition
* @param obj object for assertion
*/
public static final void check(boolean cond, Object obj) {
if (cond == false) {
throw (new InternalError(obj.toString()));
}
}
/**
* Do check whether the cond is true or false.
* If the cond is false, InternalError exception is raised.
* The obj and the message is set up to the information of InternalError.
*
* @param cond assertion condition
* @param obj object for assertion
* @param message message for assertion
*/
public static final void check(boolean cond, Object obj, String message) {
if (cond == false) {
throw (new InternalError(obj.toString() + " : " + message));
}
}
/**
* If preCond is true, do check whether the cond is true or false.
* If the cond is false, InternalError exception is raised.
* The message is set up to the information of InternalError.
*
* @param preCond pre-condition to assert
* @param cond assertion condition
*/
public static final void checkCond(
boolean preCond,
boolean cond
) {
if (preCond) {
if (cond == false) {
throw (new InternalError());
}
}
}
/**
* If preCond is true, do check whether the cond is true or false.
* If the cond is false, InternalError exception is raised.
* The message is set up to the information of InternalError.
*
* @param preCond pre-condition to assert
* @param cond assertion condition
* @param message message for assertion
*/
public static final void checkCond(
boolean preCond,
boolean cond,
String message
) {
if (preCond) {
if (cond == false) {
throw (new InternalError(message));
}
}
}
/**
* If preCond is true, do check whether the cond is true or false.
* If the cond is false, InternalError exception is raised.
* The obj is set up to the information of InternalError.
*
* @param preCond pre-condition to assert
* @param cond assertion condition
* @param obj object for assertion
*/
public static final void checkCond(
boolean preCond,
boolean cond,
Object obj
) {
if (preCond) {
if (cond == false) {
throw (new InternalError(obj.toString()));
}
}
}
/**
* If preCond is true, do check whether the cond is true or false.
* If the cond is false, InternalError exception is raised.
* The obj and the message is set up to the information of InternalError.
*
* @param preCond pre-condition to assert
* @param cond assertion condition
* @param obj object for assertion
* @param message message for assertion
*/
public static final void checkCond(
boolean preCond,
boolean cond,
Object obj,
String message
) {
if (preCond) {
if (cond == false) {
throw (new InternalError(obj.toString() + " : " + message));
}
}
}
/**
* Do check whether the var is null.
* If the var is null, InternalError exception is raised.
*
* @param var variable to assert
*/
// not null
public static final void notNull(Object var) {
if (var == null) {
throw (new InternalError());
}
}
/**
* Do check whether the var is null.
* If the var is null, InternalError exception is raised.
* The message is set up to the information of InternalError.
*
* @param var variable to assert
* @param message message for assertion
*/
// not null
public static final void notNull(Object var, String message) {
if (var == null) {
throw (new InternalError(message));
}
}
/**
* Do check whether the var is null.
* If the var is null, InternalError exception is raised.
* The obj is set up to the information of InternalError.
*
* @param var variable to assert
* @param message message for assertion
*/
public static final void notNull(Object var, Object obj) {
if (var == null) {
throw (new InternalError(obj.toString()));
}
}
/**
* Do check whether the var is null.
* If the var is null, InternalError exception is raised.
* The obj and the message is set up to the information of InternalError.
*
* @param var variable to assert
* @param obj object for assertion
* @param message message for assertion
*/
public static final void notNull(Object var, Object obj, String message) {
if (var == null) {
throw (new InternalError(obj.toString() + " : " + message));
}
}
/**
* Do check whether the cond is true or false.
* If the cond is false, IllegalArgumentException is raised.
*
* @param cond assertion condition
*/
public static final void argument(boolean cond) {
if (cond == false) {
throw (new IllegalArgumentException());
}
}
/**
* Do check whether the cond is true or false.
* If the cond is false, IllegalArgumentException is raised.
* The obj is set up to the information of InternalError.
*
* @param cond assertion condition
* @param object object for assertion
*/
public static final void argument(boolean cond, Object object) {
if (cond == false) {
throw (new IllegalArgumentException(object.toString()));
}
}
/**
* Do check whether the cond is true or false.
* If the cond is false, IllegalArgumentException is raised.
* The message is set up to the information of InternalError.
*
* @param cond assertion condition
* @param message message for assertion
*/
public static final void argument(boolean cond, String message) {
if (cond == false) {
throw (new IllegalArgumentException(message));
}
}
/**
* Do check whether the cond is true or false.
* If the cond is false, IllegalArgumentException is raised.
* The object and the message is set up to the information of
* InternalError.
*
* @param cond assertion condition
* @param message message for assertion
*/
public static final void argument(
boolean cond,
Object object,
String message
) {
if (cond == false) {
throw (new IllegalArgumentException(
object.toString() + ":" + message
));
}
}
}