org.openmrs.module.casereport.CaseReportTriggerValidator.java Source code

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Here is the source code for org.openmrs.module.casereport.CaseReportTriggerValidator.java

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/**
 * 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.casereport;

import org.openmrs.annotation.Handler;
import org.openmrs.api.context.Context;
import org.openmrs.module.casereport.api.CaseReportService;
import org.springframework.stereotype.Component;
import org.springframework.validation.Errors;
import org.springframework.validation.ValidationUtils;
import org.springframework.validation.Validator;

@Component("caseReportTriggerValidator")
@Handler(supports = CaseReportTrigger.class, order = 50)
public class CaseReportTriggerValidator implements Validator {

    /**
     * @see Validator#validate(Object, Errors)
     */
    @Override
    public boolean supports(Class<?> clazz) {
        return CaseReportTrigger.class.isAssignableFrom(clazz);
    }

    /**
     * @see Validator#validate(Object, Errors)
     * @should fail if the case report trigger object is null
     * @should fail if the trigger name is null
     * @should fail if the trigger name is an empty string
     * @should fail if the trigger name is a white space character
     * @should fail if the case report field is null
     * @should fail if a case report with the same trigger already exists for the patient
     * @should pass for a valid case report trigger
     */
    @Override
    public void validate(Object target, Errors errors) {
        if (target == null || !(target instanceof CaseReportTrigger)) {
            throw new IllegalArgumentException(
                    "The parameter obj should not be null and must be of type" + getClass());
        }

        CaseReportTrigger trigger = (CaseReportTrigger) target;
        ValidationUtils.rejectIfEmptyOrWhitespace(errors, "name", "casereports.error.trigger.name.required");
        ValidationUtils.rejectIfEmpty(errors, "caseReport", "casereports.error.trigger.casereport.required");

        if (errors.hasErrors()) {
            return;
        }

        CaseReportService service = Context.getService(CaseReportService.class);
        CaseReport duplicate = service.getCaseReportByPatient(trigger.getCaseReport().getPatient());
        if (duplicate != null) {
            CaseReportTrigger crt = duplicate.getCaseReportTriggerByName(trigger.getName());
            if (crt != null && !crt.equals(trigger)) {
                errors.rejectValue("name", "casereport.error.trigger.duplicate", new Object[] { trigger.getName() },
                        null);
            }
        }
    }
}