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JSR 380's RI, Hibernate Validator version ${hibernate-validator.version} and its dependencies repackaged as OSGi bundle
/*
* Hibernate Validator, declare and validate application constraints
*
* License: Apache License, Version 2.0
* See the license.txt file in the root directory or .
*/
package org.hibernate.validator.internal.engine.messageinterpolation;
import java.util.Arrays;
import javax.validation.MessageInterpolator.Context;
import org.hibernate.validator.messageinterpolation.HibernateMessageInterpolatorContext;
/**
* Resolves given parameter.
*
* @author Hardy Ferentschik
* @author Adam Stawicki
* @author Guillaume Smet
*/
public class ParameterTermResolver implements TermResolver {
@Override
public String interpolate(Context context, String expression) {
String resolvedExpression;
Object variable = getVariable( context, removeCurlyBraces( expression ) );
if ( variable != null ) {
if ( variable.getClass().isArray() ) {
resolvedExpression = Arrays.toString( (Object[]) variable );
}
else {
resolvedExpression = variable.toString();
}
}
else {
resolvedExpression = expression;
}
return resolvedExpression;
}
private Object getVariable(Context context, String parameter) {
if ( context instanceof HibernateMessageInterpolatorContext ) {
Object variable = ( (HibernateMessageInterpolatorContext) context ).getMessageParameters().get( parameter );
if ( variable != null ) {
return variable;
}
}
return context.getConstraintDescriptor().getAttributes().get( parameter );
}
private String removeCurlyBraces(String parameter) {
return parameter.substring( 1, parameter.length() - 1 );
}
}