src/main/java/io/mifos/core/lang/validation/CheckIdentifiers.java

/*
 * Copyright 2018 The Apache Software Foundation
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package io.mifos.core.lang.validation;

import io.mifos.core.lang.validation.constraints.ValidIdentifiers;

import javax.validation.ConstraintValidator;
import javax.validation.ConstraintValidatorContext;
import java.util.List;

/**
 * @author Myrle Krantz
 */
public class CheckIdentifiers implements ConstraintValidator<ValidIdentifiers, List<String>> {
  private int maximumLength = 32;
  private boolean optional;

  @Override
  public void initialize(final ValidIdentifiers constraintAnnotation) {
    maximumLength = constraintAnnotation.maxLength();
    optional = constraintAnnotation.optional();

  }

  @Override
  public boolean isValid(final List<String> value, final ConstraintValidatorContext context) {
    if (optional && value == null)
      return true;

    return value != null && value.stream().allMatch(x -> x != null && CheckIdentifier.validate(x, maximumLength));
  }
}