Java tutorial
/** * This Source Code Form is subject to the terms of the Mozilla Public License, * v. 2.0. If a copy of the MPL was not distributed with this file, You can * obtain one at http://mozilla.org/MPL/2.0/. OpenMRS is also distributed under * the terms of the Healthcare Disclaimer located at http://openmrs.org/license. * * Copyright (C) OpenMRS Inc. OpenMRS is a registered trademark and the OpenMRS * graphic logo is a trademark of OpenMRS Inc. */ package org.openmrs.module.radiology.modality; import org.apache.commons.lang3.StringUtils; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.openmrs.annotation.Handler; import org.openmrs.validator.ValidateUtil; import org.springframework.stereotype.Component; import org.springframework.validation.Errors; import org.springframework.validation.ValidationUtils; import org.springframework.validation.Validator; /** * Validates {@link RadiologyModality}. */ @Component @Handler(supports = { RadiologyModality.class }) public class RadiologyModalityValidator implements Validator { protected final Log log = LogFactory.getLog(RadiologyModalityValidator.class); static int MAX_LENGTH_AE_TITLE = 16; static int MAX_LENGTH_NAME = 255; /** * Determines if the command object being submitted is a valid type. * * @see Validator#supports(Class) * @should return true for radiology modality objects * @should return false for other object types */ @Override public boolean supports(Class clazz) { return RadiologyModality.class.isAssignableFrom(clazz); } /** * Checks the form object for any inconsistencies/errors. * * @see Validator#validate(Object, Errors) * @should fail validation if radiology modality is null * @should fail validation if ae title is null or empty or whitespaces only * @should fail validation if name is null or empty or whitespaces only * @should fail validation if retire reason is null or empty if retire is true and set retired to false * @should fail validation if field lengths are not correct * @should pass validation if all fields are correct */ @Override public void validate(Object obj, Errors errors) { final RadiologyModality radiologyModality = (RadiologyModality) obj; if (radiologyModality == null) { errors.reject("error.general"); } else { ValidationUtils.rejectIfEmptyOrWhitespace(errors, "aeTitle", "error.null", "Cannot be empty or null"); ValidationUtils.rejectIfEmptyOrWhitespace(errors, "name", "error.null", "Cannot be empty or null"); if (radiologyModality.getRetired() && StringUtils.isBlank(radiologyModality.getRetireReason())) { radiologyModality.setRetired(false); errors.rejectValue("retireReason", "error.null"); } ValidateUtil.validateFieldLengths(errors, obj.getClass(), "aeTitle", "name", "description", "retireReason"); } } }