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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.constraintvalidators.bv;
import java.lang.invoke.MethodHandles;
import java.util.regex.Matcher;
import java.util.regex.PatternSyntaxException;
import javax.validation.ConstraintValidator;
import javax.validation.ConstraintValidatorContext;
import javax.validation.constraints.Pattern;
import org.hibernate.validator.constraintvalidation.HibernateConstraintValidatorContext;
import org.hibernate.validator.internal.engine.messageinterpolation.util.InterpolationHelper;
import org.hibernate.validator.internal.util.logging.Log;
import org.hibernate.validator.internal.util.logging.LoggerFactory;
/**
* @author Hardy Ferentschik
*/
public class PatternValidator implements ConstraintValidator {
private static final Log LOG = LoggerFactory.make( MethodHandles.lookup() );
private java.util.regex.Pattern pattern;
private String escapedRegexp;
@Override
public void initialize(Pattern parameters) {
Pattern.Flag[] flags = parameters.flags();
int intFlag = 0;
for ( Pattern.Flag flag : flags ) {
intFlag = intFlag | flag.getValue();
}
try {
pattern = java.util.regex.Pattern.compile( parameters.regexp(), intFlag );
}
catch (PatternSyntaxException e) {
throw LOG.getInvalidRegularExpressionException( e );
}
escapedRegexp = InterpolationHelper.escapeMessageParameter( parameters.regexp() );
}
@Override
public boolean isValid(CharSequence value, ConstraintValidatorContext constraintValidatorContext) {
if ( value == null ) {
return true;
}
if ( constraintValidatorContext instanceof HibernateConstraintValidatorContext ) {
constraintValidatorContext.unwrap( HibernateConstraintValidatorContext.class ).addMessageParameter( "regexp", escapedRegexp );
}
Matcher m = pattern.matcher( value );
return m.matches();
}
}