-/*-
- * ============LICENSE_START=======================================================
- * ONAP CLAMP
- * ================================================================================
- * Copyright (C) 2017 AT&T Intellectual Property. 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.
- * ============LICENSE_END============================================
- * Modifications copyright (c) 2018 Nokia
- * ===================================================================
- *
- */
-
-package org.onap.clamp.clds.client;
-
-import com.att.eelf.configuration.EELFLogger;
-import com.att.eelf.configuration.EELFManager;
-
-import java.io.BufferedReader;
-import java.io.DataOutputStream;
-import java.io.IOException;
-import java.io.InputStreamReader;
-import java.net.HttpURLConnection;
-import java.net.URL;
-
-import javax.net.ssl.HttpsURLConnection;
-import javax.ws.rs.BadRequestException;
-
-import org.apache.commons.io.IOUtils;
-import org.onap.clamp.clds.util.LoggingUtils;
-import org.springframework.stereotype.Component;
-
-/**
- * This class manages the HTTP and HTTPS connections to DCAE.
- */
-@Component
-public class DcaeHttpConnectionManager {
- protected static final EELFLogger logger = EELFManager.getInstance().getLogger(DcaeHttpConnectionManager.class);
- protected static final EELFLogger metricsLogger = EELFManager.getInstance().getMetricsLogger();
- private static final String DCAE_REQUEST_FAILED_LOG = "Request Failed - response payload=";
-
- private String doHttpsQuery(URL url, String requestMethod, String payload, String contentType) throws IOException {
- logger.info("Using HTTPS URL to contact DCAE:" + url.toString());
- HttpsURLConnection secureConnection = (HttpsURLConnection) url.openConnection();
- secureConnection.setRequestMethod(requestMethod);
- secureConnection.setRequestProperty("X-ECOMP-RequestID", LoggingUtils.getRequestId());
- if (payload != null && contentType != null) {
- secureConnection.setRequestProperty("Content-Type", contentType);
- secureConnection.setDoOutput(true);
- try (DataOutputStream wr = new DataOutputStream(secureConnection.getOutputStream())) {
- wr.writeBytes(payload);
- wr.flush();
- }
- }
- int responseCode = secureConnection.getResponseCode();
- logger.info("Response Code: " + responseCode);
- if (responseCode < 400) {
- try (BufferedReader reader = new BufferedReader(new InputStreamReader(secureConnection.getInputStream()))) {
- String responseStr = IOUtils.toString(reader);
- logger.info("Response Content: " + responseStr);
- return responseStr;
- }
- } else {
- // In case of connection failure just check whether there is a
- // content or not
- try (BufferedReader reader = new BufferedReader(new InputStreamReader(secureConnection.getErrorStream()))) {
- String responseStr = IOUtils.toString(reader);
- logger.error(DCAE_REQUEST_FAILED_LOG + responseStr);
- throw new BadRequestException(responseStr);
- }
- }
- }
-
- private String doHttpQuery(URL url, String requestMethod, String payload, String contentType) throws IOException {
- LoggingUtils utils = new LoggingUtils(logger);
- logger.info("Using HTTP URL to contact DCAE:" + url);
- HttpURLConnection connection = (HttpURLConnection) url.openConnection();
- connection = utils.invoke(connection, "DCAE", requestMethod);
- connection.setRequestMethod(requestMethod);
- connection.setRequestProperty("X-ECOMP-RequestID", LoggingUtils.getRequestId());
- if (payload != null && contentType != null) {
- connection.setRequestProperty("Content-Type", contentType);
- connection.setDoOutput(true);
- try (DataOutputStream wr = new DataOutputStream(connection.getOutputStream())) {
- wr.writeBytes(payload);
- wr.flush();
- }
- }
- int responseCode = connection.getResponseCode();
- logger.info("Response Code: " + responseCode);
- if (responseCode < 400) {
- try (BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream()))) {
- String responseStr = IOUtils.toString(reader);
- logger.info("Response Content: " + responseStr);
- utils.invokeReturn();
- return responseStr;
- }
- } else {
- // In case of connection failure just check whether there is a
- // content or not
- try (BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getErrorStream()))) {
- String responseStr = IOUtils.toString(reader);
- logger.error(DCAE_REQUEST_FAILED_LOG + responseStr);
- utils.invokeReturn();
- throw new BadRequestException(responseStr);
- }
- }
- }
-
- /**
- * This method does a HTTP/HTTPS query to DCAE with parameters specified.
- *
- * @param url
- * The string HTTP or HTTPS that mustr be used to connect
- * @param requestMethod
- * The Request Method (PUT, POST, GET, DELETE, etc ...)
- * @param payload
- * The payload if any, in that case an ouputstream is opened
- * @param contentType
- * The "application/json or application/xml, or whatever"
- * @return The payload of the answer
- * @throws IOException
- * In case of issue with the streams
- */
- public String doDcaeHttpQuery(String url, String requestMethod, String payload, String contentType)
- throws IOException {
- URL urlObj = new URL(url);
- if (url.contains("https://")) { // Support for HTTPS
- return doHttpsQuery(urlObj, requestMethod, payload, contentType);
- } else { // Support for HTTP
- return doHttpQuery(urlObj, requestMethod, payload, contentType);
- }
- }
-}