org.identityconnectors.dbcommon.LocalizedAssert Maven / Gradle / Ivy
package org.identityconnectors.dbcommon;
import org.identityconnectors.framework.common.objects.ConnectorMessages;
/**
* Localized asserts is a set of localized asserts utility method that throws localized
* exception when assert is not true.
* Argument names passed into assert methods can also be localized
*
* @author kitko
*
*/
public class LocalizedAssert {
private ConnectorMessages cm;
private boolean localizeArguments;
/**
* Creates asserts with messages
* @param cm
* @throws IllegalArgumentException if cm param is null
*/
public LocalizedAssert(ConnectorMessages cm){
if(cm == null){
throw new IllegalArgumentException("ConnectorMessages argument is null");
}
this.cm = cm;
}
/**
* Creates asserts with messages with flag whether to localize argument names
* @param cm
* @param localizeArguments the arg
* @throws IllegalArgumentException if cm param is null
*/
public LocalizedAssert(ConnectorMessages cm, boolean localizeArguments){
if(cm == null){
throw new IllegalArgumentException("ConnectorMessages argument is null");
}
this.cm = cm;
this.localizeArguments = localizeArguments;
}
private void throwException(String locKey,String argument){
if(localizeArguments){
argument = cm.format(argument, argument);
}
String msg = cm.format(locKey, null, argument);
throw new IllegalArgumentException(msg);
}
/**
* Asserts the argument is not null. If argument is null, throws localized
* IllegalArgumentException
* @param
* @param o
* @param argument
* @return o param
*/
public T assertNotNull(T o, String argument) {
if (o == null) {
throwException(DBMessages.ASSERT_NOT_NULL,argument);
}
return o;
}
/**
* Asserts the argument is null. If argument is not null, throws localized
* IllegalArgumentException
* @param
* @param o
* @param argument
* @return o
*/
public T assertNull(T o,String argument){
if(o != null){
throwException(DBMessages.ASSERT_NULL,argument);
}
return o;
}
/**
* Asserts that argument string is not blank. If argument is null or blank, throws localized
* IllegalArgumentException
* @param o
* @param argument
* @return same string
*/
public String assertNotBlank(String o, String argument) {
if (o == null || o.length() == 0) {
throwException(DBMessages.ASSERT_NOT_BLANK,argument);
}
return o;
}
/**
* Asserts that argument string is blank. If argument is not blank, throws localized
* IllegalArgumentException
* @param s
* @param argument
* @return same string
*/
public String assertBlank(String s,String argument){
if(s != null && s.length() > 0){
throwException(DBMessages.ASSERT_BLANK,argument);
}
return s;
}
}