dmaap-listener/src/main/java/org/openecomp/sdnc/dmaapclient/SdncOdlConnection.java

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  * openECOMP : SDN-C
   4  * ================================================================================
   5  * Copyright (C) 2017 AT&T Intellectual Property. All rights
   6  *                                              reserved.
   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
  11  *
  12  *      http://www.apache.org/licenses/LICENSE-2.0
  13  *
  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  */
  21
  22 package org.openecomp.sdnc.dmaapclient;
  23
  24 import java.io.BufferedReader;
  25 import java.io.DataOutputStream;
  26 import java.io.IOException;
  27 import java.io.InputStreamReader;
  28 import java.net.Authenticator;
  29 import java.net.HttpURLConnection;
  30 import java.net.PasswordAuthentication;
  31 import java.net.ProtocolException;
  32 import java.net.URL;
  33
  34 import javax.net.ssl.HostnameVerifier;
  35 import javax.net.ssl.HttpsURLConnection;
  36 import javax.net.ssl.SSLSession;
  37
  38 import org.apache.commons.codec.binary.Base64;
  39 import org.slf4j.Logger;
  40 import org.slf4j.LoggerFactory;
  41
  42
  43 public class SdncOdlConnection {
  44
  45         private static final Logger LOG = LoggerFactory
  46                         .getLogger(SdncOdlConnection.class);
  47
  48         private HttpURLConnection httpConn = null;
  49
  50         private String url = null;
  51         private String user = null;
  52         private String password = null;
  53
  54         private class SdncAuthenticator extends Authenticator {
  55
  56                 private String user;
  57                 private String passwd;
  58
  59                 SdncAuthenticator(String user, String passwd) {
  60                         this.user = user;
  61                         this.passwd = passwd;
  62                 }
  63                 @Override
  64                 protected PasswordAuthentication getPasswordAuthentication() {
  65                         return new PasswordAuthentication(user, passwd.toCharArray());
  66                 }
  67
  68         }
  69
  70         private SdncOdlConnection() {
  71
  72         }
  73
  74         private SdncOdlConnection(String url, String user, String password) {
  75                 this.url = url;
  76                 this.user = user;
  77                 this.password = password;
  78
  79                 try {
  80                         URL sdncUrl = new URL(url);
  81                         Authenticator.setDefault(new SdncAuthenticator(user, password));
  82
  83                         this.httpConn = (HttpURLConnection) sdncUrl.openConnection();
  84                 } catch (Exception e) {
  85                         LOG.error("Unable to create http connection", e);
  86                 }
  87         }
  88
  89         public static  SdncOdlConnection newInstance(String url, String user, String password) throws IOException
  90         {
  91                 return (new SdncOdlConnection(url, user, password));
  92         }
  93
  94
  95
  96         public String send(String method, String contentType, String msg) throws IOException {
  97
  98                 LOG.info("Sending REST " + method + " to " + url);
  99                 LOG.info("Message body:\n" + msg);
 100                 String authStr = user + ":" + password;
 101                 String encodedAuthStr = new String(Base64.encodeBase64(authStr.getBytes()));
 102
 103                 httpConn.addRequestProperty("Authentication", "Basic " + encodedAuthStr);
 104
 105                 httpConn.setRequestMethod(method);
 106                 httpConn.setRequestProperty("Content-Type", contentType);
 107                 httpConn.setRequestProperty("Accept", contentType);
 108
 109                 httpConn.setDoInput(true);
 110                 httpConn.setDoOutput(true);
 111                 httpConn.setUseCaches(false);
 112
 113                 if (httpConn instanceof HttpsURLConnection) {
 114                         HostnameVerifier hostnameVerifier = new HostnameVerifier() {
 115                                 @Override
 116                                 public boolean verify(String hostname, SSLSession session) {
 117                                         return true;
 118                                 }
 119                         };
 120                         ((HttpsURLConnection) httpConn).setHostnameVerifier(hostnameVerifier);
 121                 }
 122
 123                 // Write message
 124                 httpConn.setRequestProperty("Content-Length", "" + msg.length());
 125                 DataOutputStream outStr = new DataOutputStream(httpConn.getOutputStream());
 126                 outStr.write(msg.getBytes());
 127                 outStr.close();
 128
 129                 // Read response
 130                 BufferedReader respRdr;
 131
 132                 LOG.info("Response: " + httpConn.getResponseCode() + " " + httpConn.getResponseMessage());
 133
 134                 if (httpConn.getResponseCode() < 300) {
 135
 136                         respRdr = new BufferedReader(new InputStreamReader(httpConn.getInputStream()));
 137                 } else {
 138                         respRdr = new BufferedReader(new InputStreamReader(httpConn.getErrorStream()));
 139                 }
 140
 141                 StringBuffer respBuff = new StringBuffer();
 142
 143                 String respLn;
 144
 145                 while ((respLn = respRdr.readLine()) != null) {
 146                         respBuff.append(respLn + "\n");
 147                 }
 148                 respRdr.close();
 149
 150                 String respString = respBuff.toString();
 151
 152                 LOG.info("Response body :\n" + respString);
 153
 154                 return (respString);
 155
 156         }
 157
 158
 159 }