sdnr/wt/common/src/test/java/org/onap/ccsdk/features/sdnr/wt/common/test/helper/HelpServletBase.java

   1 /*
   2  * ============LICENSE_START=======================================================
   3  * ONAP : ccsdk features
   4  * ================================================================================
   5  * Copyright (C) 2018 highstreet technologies GmbH Intellectual Property.
   6  * All rights 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.onap.ccsdk.features.sdnr.wt.common.test.helper;
  23
  24 import static org.junit.Assert.assertEquals;
  25 import static org.junit.Assert.assertTrue;
  26 import static org.junit.Assert.fail;
  27 import static org.mockito.Mockito.mock;
  28 import static org.mockito.Mockito.verify;
  29 import static org.mockito.Mockito.when;
  30 import com.sun.net.httpserver.HttpExchange;
  31 import com.sun.net.httpserver.HttpHandler;
  32 import com.sun.net.httpserver.HttpServer;
  33 import java.io.IOException;
  34 import java.io.OutputStream;
  35 import java.net.InetSocketAddress;
  36 import java.util.Enumeration;
  37 import java.util.Map;
  38 import java.util.Vector;
  39 import java.util.concurrent.ExecutorService;
  40 import java.util.concurrent.Executors;
  41 import javax.servlet.http.HttpServletRequest;
  42 import javax.servlet.http.HttpServletResponse;
  43 import org.junit.After;
  44 import org.junit.Before;
  45 import org.onap.ccsdk.features.sdnr.wt.common.test.ServletInputStreamFromByteArrayInputStream;
  46 import org.onap.ccsdk.features.sdnr.wt.common.test.ServletOutputStreamToStringWriter;
  47
  48 public class HelpServletBase {
  49
  50     public static final String RESPONSE_GET = "This is the response get";
  51     public static final String RESPONSE_POST = "This is the response post";
  52     public static final String RESPONSE_PUT = "This is the response put";
  53     public static final String RESPONSE_DELETE = "This is the response delete";
  54     public static final String RESPONSE_OPTIONS = "This is the response options";
  55
  56     public static final String HTTPMETHOD_GET = "GET";
  57     public static final String HTTPMETHOD_POST = "POST";
  58     public static final String HTTPMETHOD_PUT = "PUT";
  59     public static final String HTTPMETHOD_DELETE = "DELETE";
  60     public static final String HTTPMETHOD_OPTIONS = "OPTIONS";
  61     private IPublicServlet servlet;
  62     private static HttpServer server;
  63     private static ExecutorService httpThreadPool;
  64
  65     public final String HOST = "localhost";
  66     protected static int testPort;
  67     private final String baseUri;
  68     protected static final String LR = "\n";
  69
  70     public HelpServletBase(String baseuri, int port) {
  71         this.baseUri = baseuri;
  72         testPort = port;
  73     }
  74
  75     public void setServlet(IPublicServlet s) {
  76         this.servlet = s;
  77     }
  78
  79     protected void testrequest(String method, String data, String expectedResponse, boolean exact) {
  80         this.testrequest("/mwtn/test", method, data, expectedResponse, exact, null);
  81     }
  82
  83     protected void testrequest(String uri, String method, String data, String expectedResponse, boolean exact) {
  84         this.testrequest(uri, method, data, expectedResponse, exact, null);
  85     }
  86
  87     protected void testrequest(String uri, String method, String data, String expectedResponse, boolean exact,
  88             Map<String, String> headersToCheck) {
  89
  90         HttpServletRequest mockRequest = mock(HttpServletRequest.class);
  91         HttpServletResponse mockResponse = mock(HttpServletResponse.class);
  92
  93         ServletOutputStreamToStringWriter printOut = new ServletOutputStreamToStringWriter();
  94         ServletInputStreamFromByteArrayInputStream inputStream = new ServletInputStreamFromByteArrayInputStream(data.getBytes());
  95         Vector<String> headers = new Vector<String>();
  96         headers.addElement("Accept");
  97         headers.add("User-Agent");
  98         Enumeration<String> headerNames = headers.elements();
  99         try {
 100             when(mockRequest.getRequestURI()).thenReturn(this.baseUri + uri);
 101             when(mockRequest.getHeaderNames()).thenReturn(headerNames);
 102             when(mockRequest.getHeader("Accept")).thenReturn("application/json");
 103             when(mockRequest.getHeader("User-Agent")).thenReturn("Gecko abc");
 104             when(mockRequest.getInputStream()).thenReturn(inputStream);
 105             when(mockResponse.getOutputStream()).thenReturn(printOut);
 106             System.out.println("do a " + method + " request");
 107             if (method == HTTPMETHOD_GET)
 108                 this.servlet.doGet(mockRequest, mockResponse);
 109             else if (method == HTTPMETHOD_POST)
 110                 this.servlet.doPost(mockRequest, mockResponse);
 111             else if (method == HTTPMETHOD_PUT)
 112                 this.servlet.doPut(mockRequest, mockResponse);
 113             else if (method == HTTPMETHOD_DELETE)
 114                 this.servlet.doDelete(mockRequest, mockResponse);
 115             else if (method == HTTPMETHOD_OPTIONS)
 116                 this.servlet.doOptions(mockRequest, mockResponse);
 117             else
 118                 fail("http request method " + method + " test not implemented");
 119         } catch (Exception e) {
 120             System.err.println(e.getMessage());
 121         }
 122
 123         verify(mockResponse).setStatus(200);
 124         if (exact)
 125             assertEquals(expectedResponse, printOut.getStringWriter().toString());
 126         else
 127             assertTrue("response not for method " + method + "correct", printOut.getStringWriter().toString().contains(expectedResponse));
 128         // currently unable to check extra headers
 129         if (headersToCheck != null) {
 130
 131         }
 132     }
 133
 134     @Before
 135     private void init() throws IOException {
 136
 137
 138         initEsTestWebserver(testPort);
 139     }
 140
 141     @After
 142     private void deinit() {
 143         stopTestWebserver();
 144     }
 145
 146     public static void initEsTestWebserver(int port) throws IOException {
 147         initEsTestWebserver(port, "/mwtn/test");
 148     }
 149
 150     public static void initEsTestWebserver(int port, String baseUri) throws IOException {
 151         server = HttpServer.create(new InetSocketAddress("127.0.0.1", port), 0);
 152         httpThreadPool = Executors.newFixedThreadPool(5);
 153         server.setExecutor(httpThreadPool);
 154         server.createContext(baseUri, new MyHandler());
 155         //server.createContext("/", new MyRootHandler());
 156         server.setExecutor(null); // creates a default executor
 157         server.start();
 158         System.out.println("http server started");
 159     }
 160
 161     public static void stopTestWebserver() {
 162         if (server != null) {
 163             server.stop(0);
 164             httpThreadPool.shutdownNow();
 165             System.out.println("http server stopped");
 166         }
 167     }
 168
 169
 170
 171     public static class MyHandler implements HttpHandler {
 172         @Override
 173         public void handle(HttpExchange t) throws IOException {
 174             String method = t.getRequestMethod();
 175             System.out.println(String.format("req received: %s %s", method, t.getRequestURI()));
 176             OutputStream os = null;
 177             try {
 178                 if (method.equals(HTTPMETHOD_GET)) {
 179                     t.sendResponseHeaders(200, RESPONSE_GET.length());
 180                     os = t.getResponseBody();
 181                     os.write(RESPONSE_GET.getBytes());
 182                 } else if (method.equals(HTTPMETHOD_POST)) {
 183                     t.sendResponseHeaders(200, RESPONSE_POST.length());
 184                     os = t.getResponseBody();
 185                     os.write(RESPONSE_POST.getBytes());
 186                 } else if (method.equals(HTTPMETHOD_PUT)) {
 187                     t.sendResponseHeaders(200, RESPONSE_PUT.length());
 188                     os = t.getResponseBody();
 189                     os.write(RESPONSE_PUT.getBytes());
 190                 } else if (method.equals(HTTPMETHOD_DELETE)) {
 191                     t.sendResponseHeaders(200, RESPONSE_DELETE.length());
 192                     os = t.getResponseBody();
 193                     os.write(RESPONSE_DELETE.getBytes());
 194                 } else if (method.equals(HTTPMETHOD_OPTIONS)) {
 195                     t.sendResponseHeaders(200, RESPONSE_OPTIONS.length());
 196                     //os = t.getResponseBody();
 197                     //os.write(RESPONSE_OPTIONS.getBytes());
 198                 } else {
 199                     t.sendResponseHeaders(404, 0);
 200                 }
 201                 System.out.println("req handled successful");
 202
 203             } catch (Exception e) {
 204                 System.out.println(e.getMessage());
 205             } finally {
 206                 if (os != null) {
 207                     os.close();
 208                 }
 209             }
 210         }
 211     }
 212 }