HeaderUtil.java

package io.github.jhipster.sample.web.rest.util;

/*-
 * #%L
 * Jhipster Sample Application
 * %%
 * Copyright (C) 2017 Osgiliath
 * %%
 * 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.
 * #L%
 */

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.http.HttpHeaders;

/**
 * Utility class for HTTP headers creation.
 */
public final class HeaderUtil {

    private static final Logger log = LoggerFactory.getLogger(HeaderUtil.class);

    private static final String APPLICATION_NAME = "jhipsterSampleApplicationApp";

    private HeaderUtil() {
    }

    public static HttpHeaders createAlert(String message, String param) {
        HttpHeaders headers = new HttpHeaders();
        headers.add("X-jhipsterSampleApplicationApp-alert", message);
        headers.add("X-jhipsterSampleApplicationApp-params", param);
        return headers;
    }

    public static HttpHeaders createEntityCreationAlert(String entityName, String param) {
        return createAlert(APPLICATION_NAME + "." + entityName + ".created", param);
    }

    public static HttpHeaders createEntityUpdateAlert(String entityName, String param) {
        return createAlert(APPLICATION_NAME + "." + entityName + ".updated", param);
    }

    public static HttpHeaders createEntityDeletionAlert(String entityName, String param) {
        return createAlert(APPLICATION_NAME + "." + entityName + ".deleted", param);
    }

    public static HttpHeaders createFailureAlert(String entityName, String errorKey, String defaultMessage) {
        log.error("Entity processing failed, {}", defaultMessage);
        HttpHeaders headers = new HttpHeaders();
        headers.add("X-jhipsterSampleApplicationApp-error", "error." + errorKey);
        headers.add("X-jhipsterSampleApplicationApp-params", entityName);
        return headers;
    }
}