2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright (C) 2017 AT&T Intellectual Property. All rights
7 * ================================================================================
8 * Licensed under the Apache License, Version 2.0 (the "License");
9 * you may not use this file except in compliance with the License.
10 * You may obtain a copy of the License at
12 * http://www.apache.org/licenses/LICENSE-2.0
14 * Unless required by applicable law or agreed to in writing, software
15 * distributed under the License is distributed on an "AS IS" BASIS,
16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17 * See the License for the specific language governing permissions and
18 * limitations under the License.
19 * ============LICENSE_END============================================
20 * Modifications copyright (c) 2018 Nokia
21 * ===================================================================
25 package org.onap.clamp.clds.client;
27 import com.att.eelf.configuration.EELFLogger;
28 import com.att.eelf.configuration.EELFManager;
30 import java.io.BufferedReader;
31 import java.io.DataOutputStream;
32 import java.io.IOException;
33 import java.io.InputStreamReader;
34 import java.net.HttpURLConnection;
37 import javax.net.ssl.HttpsURLConnection;
38 import javax.ws.rs.BadRequestException;
40 import org.apache.commons.io.IOUtils;
41 import org.onap.clamp.clds.util.LoggingUtils;
42 import org.springframework.stereotype.Component;
46 * This class manages the HTTP and HTTPS connections to DCAE.
50 public class DcaeHttpConnectionManager {
51 protected static final EELFLogger logger = EELFManager.getInstance().getLogger(DcaeHttpConnectionManager.class);
52 protected static final EELFLogger metricsLogger = EELFManager.getInstance().getMetricsLogger();
53 private static final String DCAE_REQUEST_FAILED_LOG = "Request Failed - response payload=";
55 private String doHttpsQuery(URL url, String requestMethod, String payload, String contentType) throws IOException {
56 logger.info("Using HTTPS URL to contact DCAE:" + url.toString());
57 HttpsURLConnection secureConnection = (HttpsURLConnection) url.openConnection();
58 secureConnection.setRequestMethod(requestMethod);
59 secureConnection.setRequestProperty("X-ECOMP-RequestID", LoggingUtils.getRequestId());
60 if (payload != null && contentType != null) {
61 secureConnection.setRequestProperty("Content-Type", contentType);
62 secureConnection.setDoOutput(true);
63 try (DataOutputStream wr = new DataOutputStream(secureConnection.getOutputStream())) {
64 wr.writeBytes(payload);
68 int responseCode = secureConnection.getResponseCode();
69 logger.info("Response Code: " + responseCode);
70 if (responseCode < 400) {
71 try (BufferedReader reader = new BufferedReader(new InputStreamReader(secureConnection.getInputStream()))) {
72 String responseStr = IOUtils.toString(reader);
73 logger.info("Response Content: " + responseStr);
77 // In case of connection failure just check whether there is a
79 try (BufferedReader reader = new BufferedReader(new InputStreamReader(secureConnection.getErrorStream()))) {
80 String responseStr = IOUtils.toString(reader);
81 logger.error(DCAE_REQUEST_FAILED_LOG + responseStr);
82 throw new BadRequestException(responseStr);
87 private String doHttpQuery(URL url, String requestMethod, String payload, String contentType) throws IOException {
88 LoggingUtils utils = new LoggingUtils(logger);
89 logger.info("Using HTTP URL to contact DCAE:" + url);
90 HttpURLConnection connection = (HttpURLConnection) url.openConnection();
91 connection = utils.invoke(connection, "DCAE", requestMethod);
92 connection.setRequestMethod(requestMethod);
93 connection.setRequestProperty("X-ECOMP-RequestID", LoggingUtils.getRequestId());
94 if (payload != null && contentType != null) {
95 connection.setRequestProperty("Content-Type", contentType);
96 connection.setDoOutput(true);
97 try (DataOutputStream wr = new DataOutputStream(connection.getOutputStream())) {
98 wr.writeBytes(payload);
102 int responseCode = connection.getResponseCode();
103 logger.info("Response Code: " + responseCode);
104 if (responseCode < 400) {
105 try (BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream()))) {
106 String responseStr = IOUtils.toString(reader);
107 logger.info("Response Content: " + responseStr);
108 utils.invokeReturn();
112 // In case of connection failure just check whether there is a
114 try (BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getErrorStream()))) {
115 String responseStr = IOUtils.toString(reader);
116 logger.error(DCAE_REQUEST_FAILED_LOG + responseStr);
117 utils.invokeReturn();
118 throw new BadRequestException(responseStr);
124 * This method does a HTTP/HTTPS query to DCAE with parameters specified.
127 * The string HTTP or HTTPS that mustr be used to connect
128 * @param requestMethod
129 * The Request Method (PUT, POST, GET, DELETE, etc ...)
131 * The payload if any, in that case an ouputstream is opened
133 * The "application/json or application/xml, or whatever"
134 * @return The payload of the answer
135 * @throws IOException
136 * In case of issue with the streams
138 public String doDcaeHttpQuery(String url, String requestMethod, String payload, String contentType)
140 URL urlObj = new URL(url);
141 if (url.contains("https://")) { // Support for HTTPS
142 return doHttpsQuery(urlObj, requestMethod, payload, contentType);
143 } else { // Support for HTTP
144 return doHttpQuery(urlObj, requestMethod, payload, contentType);