api/src/main/java/io/mifos/portfolio/api/v1/validation/CheckValidChargeDefinition.java

/*
 * Copyright 2017 Kuelap, Inc.
 *
 * 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.portfolio.api.v1.validation;

import io.mifos.portfolio.api.v1.domain.ChargeDefinition;

import javax.validation.ConstraintValidator;
import javax.validation.ConstraintValidatorContext;

/**
 * @author Myrle Krantz
 */
public class CheckValidChargeDefinition implements ConstraintValidator<ValidChargeDefinition, ChargeDefinition> {
  @Override
  public void initialize(ValidChargeDefinition constraintAnnotation) {
  }

  @SuppressWarnings("RedundantIfStatement")
  @Override
  public boolean isValid(ChargeDefinition value, ConstraintValidatorContext context) {
    if (value.getAmount() == null)
      return false;
    if (value.getAmount().scale() > 4)
      return false;
    if (value.getAccrueAction() != null && value.getAccrualAccountDesignator() == null)
      return false;
    if (value.getAccrueAction() == null && value.getAccrualAccountDesignator() != null)
      return false;
    if (value.getChargeMethod() == ChargeDefinition.ChargeMethod.PROPORTIONAL &&
        value.getProportionalTo() == null)
      return false;
    if (value.getChargeMethod() == ChargeDefinition.ChargeMethod.FIXED &&
        value.getProportionalTo() != null)
      return false;
    if (value.getForSegmentSet() == null &&
        value.getForSegments() != null)
      return false;
    if (value.getForSegmentSet() != null &&
        value.getForSegments() == null)
      return false;
    if (value.getForSegmentSet() != null &&
        value.getForSegments() != null &&
        value.getForSegments().size() == 0)
      return false;

    return true;
  }
}