diff options
Diffstat (limited to 'so-monitoring/so-monitoring-handler/src/main/java/org/onap/so/monitoring/rest/service/HttpRestServiceProviderImpl.java')
-rw-r--r-- | so-monitoring/so-monitoring-handler/src/main/java/org/onap/so/monitoring/rest/service/HttpRestServiceProviderImpl.java | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/so-monitoring/so-monitoring-handler/src/main/java/org/onap/so/monitoring/rest/service/HttpRestServiceProviderImpl.java b/so-monitoring/so-monitoring-handler/src/main/java/org/onap/so/monitoring/rest/service/HttpRestServiceProviderImpl.java new file mode 100644 index 0000000000..82a54c10a2 --- /dev/null +++ b/so-monitoring/so-monitoring-handler/src/main/java/org/onap/so/monitoring/rest/service/HttpRestServiceProviderImpl.java @@ -0,0 +1,119 @@ +/*- + * ============LICENSE_START======================================================= + * Copyright (C) 2018 Ericsson. All rights reserved. + * ================================================================================ + * 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. + * + * SPDX-License-Identifier: Apache-2.0 + * ============LICENSE_END========================================================= + */ +package org.onap.so.monitoring.rest.service; + +import org.onap.so.monitoring.exception.InvalidRestRequestException; +import org.onap.so.monitoring.exception.RestProcessingException; +import org.springframework.http.HttpEntity; +import org.springframework.http.HttpMethod; +import org.springframework.http.HttpStatus; +import org.springframework.http.ResponseEntity; +import org.springframework.web.client.HttpClientErrorException; +import org.springframework.web.client.RestClientException; +import org.springframework.web.client.RestTemplate; + +import com.google.common.base.Optional; + +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +/** + * @author waqas.ikram@ericsson.com + */ +public class HttpRestServiceProviderImpl implements HttpRestServiceProvider { + + private static final Logger LOGGER = LoggerFactory.getLogger(HttpRestServiceProviderImpl.class); + private final RestTemplate restTemplate; + + public HttpRestServiceProviderImpl(final RestTemplate restTemplate) { + this.restTemplate = restTemplate; + } + + @Override + public <T> Optional<T> getHttpResponse(final String url, final Class<T> clazz) { + LOGGER.trace("Will invoke HTTP GET using URL: " + url); + try { + final ResponseEntity<T> response = restTemplate.exchange(url, HttpMethod.GET, null, clazz); + if (!response.getStatusCode().equals(HttpStatus.OK)) { + final String message = "Unable to invoke HTTP GET using URL: " + url + + ", Response Code: " + response.getStatusCode(); + LOGGER.error(message); + return Optional.absent(); + } + + if (response.hasBody()) { + return Optional.of(response.getBody()); + } + } catch (final HttpClientErrorException httpClientErrorException) { + final String message = "Unable to invoke HTTP GET using url: " + url + ", Response: " + + httpClientErrorException.getRawStatusCode(); + LOGGER.error(message, httpClientErrorException); + final int rawStatusCode = httpClientErrorException.getRawStatusCode(); + if (rawStatusCode == HttpStatus.BAD_REQUEST.value() || rawStatusCode == HttpStatus.NOT_FOUND.value()) { + throw new InvalidRestRequestException("No result found for given url: " + url); + } + throw new RestProcessingException("Unable to invoke HTTP GET using URL: " + url); + + } catch (final RestClientException restClientException) { + LOGGER.error("Unable to invoke HTTP GET using url: " + url, restClientException); + throw new RestProcessingException("Unable to invoke HTTP GET using URL: " + + url, restClientException); + } + + return Optional.absent(); + } + + @Override + public <T> Optional<T> postHttpRequest(final Object object, final String url, final Class<T> clazz) { + try { + final HttpEntity<?> request = new HttpEntity<>(object); + final ResponseEntity<T> response = restTemplate.exchange(url, HttpMethod.POST, request, clazz); + if (!response.getStatusCode().equals(HttpStatus.OK)) { + final String message = "Unable to invoke HTTP GET using URL: " + url + + ", Response Code: " + response.getStatusCode(); + LOGGER.error(message); + return Optional.absent(); + } + + if (response.hasBody()) { + return Optional.of(response.getBody()); + } + + } catch (final HttpClientErrorException httpClientErrorException) { + final String message = "Unable to invoke HTTP POST using url: " + url + + ", Response: " + httpClientErrorException.getRawStatusCode(); + LOGGER.error(message, httpClientErrorException); + final int rawStatusCode = httpClientErrorException.getRawStatusCode(); + if (rawStatusCode == HttpStatus.BAD_REQUEST.value() || rawStatusCode == HttpStatus.NOT_FOUND.value()) { + throw new InvalidRestRequestException("No result found for given url: " + url); + } + throw new RestProcessingException("Unable to invoke HTTP POST using URL: " + url); + + } catch (final RestClientException restClientException) { + LOGGER.error("Unable to invoke HTTP POST using url: " + url, restClientException); + throw new RestProcessingException("Unable to invoke HTTP POST using URL: " + + url, restClientException); + } + + return Optional.absent(); + } + + +} |