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/* Copyright (c) The m-m-m Team, Licensed under the Apache License, Version 2.0
* http://www.apache.org/licenses/LICENSE-2.0 */
package io.github.mmm.validation.string;
import java.util.Objects;
import java.util.regex.Pattern;
import io.github.mmm.nls.NlsMessage;
import io.github.mmm.validation.AbstractValueValidator;
import io.github.mmm.validation.main.NlsBundleValidation;
/**
* {@link io.github.mmm.validation.Validator} {@link #validate(CharSequence, Object) validating} that a given
* {@link CharSequence} {@link Pattern#matcher(CharSequence) matches} a given {@link Pattern}.
*
* @since 1.0.0
*/
public class ValidatorPattern extends AbstractValueValidator {
/** @see #getId() */
public static final String ID = "Pattern";
private final Pattern pattern;
/**
* The constructor.
*
* @param pattern the regular expression {@link Pattern}.
*/
public ValidatorPattern(Pattern pattern) {
super();
this.pattern = pattern;
}
/**
* The constructor.
*
* @param pattern the regular expression {@link Pattern#compile(String) pattern}.
*/
public ValidatorPattern(String pattern) {
this(Pattern.compile(pattern));
}
@Override
public String getId() {
return ID;
}
@Override
protected NlsMessage validateNotNull(CharSequence value) {
boolean matches = this.pattern.matcher(value).matches();
if (!matches) {
return NlsBundleValidation.INSTANCE.errorValueFormat(value, this.pattern);
}
return null;
}
@Override
public int hashCode() {
return Objects.hash(super.hashCode(), this.pattern);
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
} else if (!super.equals(obj)) {
return false;
}
ValidatorPattern other = (ValidatorPattern) obj;
return Objects.equals(this.pattern, other.pattern);
}
}