| /* |
| * Copyright 2017-present Open Networking Foundation |
| * |
| * 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. |
| */ |
| |
| package org.onlab.junit; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.net.HttpURLConnection; |
| import java.net.URL; |
| import java.net.URLConnection; |
| import java.net.URLStreamHandler; |
| import java.net.URLStreamHandlerFactory; |
| |
| /** |
| * Intercepts HTTP URL connections and supplies predefined data from a resource. Used for supplying data to HTTP |
| * connections in unit tests. |
| */ |
| public class HttpResourceUrlInterceptor { |
| |
| /** |
| * Handles creation of HTTP Connections to the resource data. |
| */ |
| private static class HttpResourceUrlInterceptorHandler extends URLStreamHandler { |
| |
| String resourceName; |
| |
| HttpResourceUrlInterceptorHandler(String resourceName) { |
| this.resourceName = resourceName; |
| } |
| |
| @Override |
| protected URLConnection openConnection(URL u) throws IOException { |
| return new InterceptedHttpUrlConnection(u, resourceName); |
| } |
| } |
| |
| /** |
| * Creates stream handlers for the interceptor. |
| */ |
| public static class HttpResourceUrlInterceptorFactory implements URLStreamHandlerFactory { |
| |
| String resourceName; |
| |
| public HttpResourceUrlInterceptorFactory(String resourceName) { |
| this.resourceName = resourceName; |
| } |
| |
| @Override |
| public URLStreamHandler createURLStreamHandler(String protocol) { |
| return new HttpResourceUrlInterceptorHandler(resourceName); |
| } |
| } |
| |
| /** |
| * HTTP Url Connection that is backed by the data in the resource. |
| */ |
| private static final class InterceptedHttpUrlConnection extends HttpURLConnection { |
| |
| private final String resourceName; |
| |
| private InterceptedHttpUrlConnection(URL url, String resourceName) { |
| super(url); |
| this.resourceName = resourceName; |
| } |
| |
| @Override |
| public int getResponseCode() { |
| return HTTP_OK; |
| } |
| |
| @Override |
| public boolean usingProxy() { |
| return false; |
| } |
| |
| @Override |
| public void disconnect() { |
| // noop |
| } |
| |
| @Override |
| public void connect() { |
| // noop |
| } |
| |
| @Override |
| public InputStream getInputStream() throws IOException { |
| return this.getClass().getResource(resourceName).openStream(); |
| } |
| |
| } |
| } |
| |
| |