com.whitestein.lsps.common

Class Assert

java.lang.Object

com.whitestein.lsps.common.Assert

public final class Assert
extends java.lang.Object

Utility methods for checking values of parameters, etc.

Author:

rba

Method Summary

Modifier and Type	Method and Description
static void	checkArgument(boolean condition) If the condition is false, the method throws IllegalArgumentException.
static void	checkArgument(boolean condition, java.lang.String errorMessage) If the condition is false, the method throws IllegalArgumentException.
static java.lang.String	checkNotBlank(java.lang.String string, java.lang.String stringName) Returns given string if it is not "blank" (i.e. it is not null and does not contain just whitespace characters).
static void	checkState(boolean condition) If the condition is false, the method throws IllegalStateException.
static void	checkState(boolean condition, java.lang.String errorMessage) If the condition is false, the method throws IllegalStateException.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

checkArgument

public static void checkArgument(boolean condition)

If the condition is false, the method throws IllegalArgumentException.

Parameters:

condition - condition to check

Throws:

java.lang.IllegalArgumentException - if condition is false

checkArgument

public static void checkArgument(boolean condition,
                                 java.lang.String errorMessage)

If the condition is false, the method throws IllegalArgumentException.

Parameters:

condition - condition to check

errorMessage - error message

Throws:

java.lang.IllegalArgumentException - if condition is false

checkState

public static void checkState(boolean condition)

If the condition is false, the method throws IllegalStateException.

Parameters:

condition - condition to check

Throws:

java.lang.IllegalStateException - if condition is false

checkState

public static void checkState(boolean condition,
                              java.lang.String errorMessage)

If the condition is false, the method throws IllegalStateException.

Parameters:

condition - condition to check

errorMessage - error message

Throws:

java.lang.IllegalStateException - if condition is false

checkNotBlank

public static java.lang.String checkNotBlank(java.lang.String string,
                                             java.lang.String stringName)

Returns given string if it is not "blank" (i.e. it is not null and does not contain just whitespace characters).

Parameters:

string - the string to check if it is not blank

stringName - the name of the string variable that is checked (used for displaying in a thrown exception)

Returns:

given string if it is not blank

Throws:

java.lang.NullPointerException - (unchecked) if the string argument is null

java.lang.IllegalArgumentException - (unchecked) if the string argument contains just whitespace characters