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/*
* Copyright © 2016-2018 European Support Limited
*
* 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 org.openecomp.sdcrests.item.rest.services.catalog.notification.http;
import static org.openecomp.sdcrests.item.rest.services.catalog.notification.AsyncNotifier.NextAction.DONE;
import static org.openecomp.sdcrests.item.rest.services.catalog.notification.AsyncNotifier.NextAction.RETRY;
import java.io.UnsupportedEncodingException;
import java.util.Collection;
import java.util.concurrent.Callable;
import lombok.Getter;
import lombok.NoArgsConstructor;
import lombok.Setter;
import lombok.ToString;
import org.apache.http.HttpEntity;
import org.apache.http.HttpHeaders;
import org.apache.http.HttpStatus;
import org.apache.http.StatusLine;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.ContentType;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.openecomp.core.utilities.json.JsonUtil;
import org.openecomp.sdc.logging.api.Logger;
import org.openecomp.sdc.logging.api.LoggerFactory;
import org.openecomp.sdcrests.item.rest.services.catalog.notification.AsyncNotifier;
/**
* HTTP client for notifying the Catalog of an action on items. The items are referenced by their IDs. The client can
* run multiple times, in which case only failed IDs will be re-attempted.
*
* @author evitaliy
* @since 21 Nov 2018
*/
@ToString
class HttpNotificationTask implements Callable<AsyncNotifier.NextAction> {
private static final Logger LOGGER = LoggerFactory.getLogger(HttpNotificationTask.class);
private static final String APPLICATION_JSON = ContentType.APPLICATION_JSON.getMimeType();
private static final String USER_ID_HEADER_PARAM = "USER_ID";
private final String endpoint;
private final String userId;
private volatile Collection<String> itemIds;
HttpNotificationTask(String endpoint, String userId, Collection<String> itemIds) {
this.endpoint = endpoint;
this.userId = userId;
this.itemIds = itemIds;
}
@Override
public synchronized AsyncNotifier.NextAction call() {
try (CloseableHttpClient client = HttpClients.createDefault()) {
HttpPost request = createPostRequest(endpoint, itemIds, userId);
try (CloseableHttpResponse response = client.execute(request)) {
StatusLine status = response.getStatusLine();
LOGGER.debug("Catalog notification on VSP IDs: {}, endpoint: {}, response: {}",
itemIds, endpoint, status);
itemIds = getFailedIds(itemIds, response.getEntity());
if ((status.getStatusCode() == HttpStatus.SC_INTERNAL_SERVER_ERROR)
&& (itemIds != null) && !itemIds.isEmpty()) {
LOGGER.debug("Catalog notification on VSP IDs {} failed. Endpoint: {}. Retry", itemIds, endpoint);
return RETRY;
}
return DONE;
}
} catch (Exception e) {
LOGGER.error("Catalog notification on VSP IDs {} failed. Endpoint: {}", itemIds, endpoint, e);
return DONE;
}
}
private HttpPost createPostRequest(String postUrl, Collection<String> itemIds, String userId)
throws UnsupportedEncodingException {
HttpPost request = new HttpPost(postUrl);
request.addHeader(HttpHeaders.ACCEPT, APPLICATION_JSON);
request.addHeader(HttpHeaders.CONTENT_TYPE, APPLICATION_JSON);
request.addHeader(USER_ID_HEADER_PARAM, userId);
HttpEntity entity = new StringEntity(JsonUtil.object2Json(itemIds));
request.setEntity(entity);
return request;
}
private Collection<String> getFailedIds(Collection<String> itemIds, HttpEntity responseBody) {
try {
NotificationResponse response = JsonUtil.json2Object(responseBody.getContent(), NotificationResponse.class);
return response != null ? response.failedIds : null;
} catch (Exception e) {
LOGGER.error("Error getting failed IDs from response", e);
}
return itemIds;
}
@Setter
@Getter
@ToString
@NoArgsConstructor
private static class NotificationResponse {
private Collection<String> failedIds;
}
}
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