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123 changes: 123 additions & 0 deletions
123
...egration-test-utils/src/main/java/org/wso2/am/integration/test/utils/MockServerUtils.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,123 @@ | ||
| /* | ||
| * Copyright (c) 2023, WSO2 LLC. (http://www.wso2.org) All Rights Reserved. | ||
| * | ||
| * WSO2 Inc. licenses this file to you 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.wso2.am.integration.test.utils; | ||
|
|
||
| import org.apache.commons.logging.Log; | ||
| import org.apache.commons.logging.LogFactory; | ||
|
|
||
| import java.io.IOException; | ||
| import java.net.Socket; | ||
| import java.util.Random; | ||
|
|
||
| public class MockServerUtils { | ||
| private static final Log log = LogFactory.getLog(MockServerUtils.class); | ||
| public static String LOCALHOST = "localhost"; | ||
| public static final int httpPortLowerRange = 8080; | ||
| public static final int httpPortUpperRange = 8099; | ||
| public static final int httpsPortLowerRange = 9950; | ||
| public static final int httpsPortUpperRange = 9999; | ||
| private static final int[] reservedPorts = new int[]{ 9960 }; | ||
| private static int httpOffset = 0; | ||
| private static int httpsOffset = 0; | ||
| static { | ||
| Random random = new Random(); | ||
| httpOffset = random.nextInt(httpPortUpperRange - httpPortLowerRange + 1) + httpPortLowerRange; | ||
| httpsOffset = random.nextInt(httpsPortUpperRange - httpsPortLowerRange + 1) + httpsPortLowerRange; | ||
| } | ||
| private static final Object lock = new Object(); | ||
|
|
||
| /** | ||
| * Check whether give port is available | ||
| * | ||
| * @param port Port Number | ||
| * @return status | ||
| */ | ||
| private static boolean isPortFree(int port, String host) { | ||
| if (isPortReserved(port)) { | ||
| return false; | ||
| } | ||
| Socket s = null; | ||
| try { | ||
| s = new Socket(host, port); | ||
| // something is using the port and has responded. | ||
| return false; | ||
| } catch (IOException e) { | ||
| //port available | ||
| return true; | ||
| } finally { | ||
| if (s != null) { | ||
| try { | ||
| s.close(); | ||
| } catch (IOException e) { | ||
| throw new RuntimeException("Unable to close connection ", e); | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * Find a free port to start backend WebSocket server in given port range | ||
| * | ||
| * @param isHttps | ||
| * @return Available Port Number | ||
| */ | ||
| public static int getAvailablePort(String host, boolean isHttps) { | ||
| synchronized (lock) { | ||
| int offset; | ||
| int upperPortLimit; | ||
| int lowerPortLimit; | ||
| if (isHttps) { | ||
| offset = httpsOffset; | ||
| upperPortLimit = httpsPortUpperRange; | ||
| lowerPortLimit = httpsPortLowerRange; | ||
| } else { | ||
| offset = httpOffset; | ||
| upperPortLimit = httpPortUpperRange; | ||
| lowerPortLimit = httpPortLowerRange; | ||
| } | ||
| int portRangeLen = upperPortLimit - lowerPortLimit; | ||
| int targetPort = lowerPortLimit + (offset % (portRangeLen + 1)); | ||
| for (int i = 0; i < portRangeLen; i++) { | ||
| if (MockServerUtils.isPortFree(targetPort, host)) { | ||
| if (isHttps) { | ||
| httpsOffset = (httpsOffset + i + 1) % (portRangeLen + 1); | ||
| } else { | ||
| httpOffset = (httpOffset + i + 1) % (portRangeLen + 1); | ||
| } | ||
| log.info("Port " + targetPort + " selected for mock server."); | ||
| return targetPort; | ||
| } | ||
| targetPort ++; | ||
| if (targetPort > upperPortLimit) { | ||
| targetPort = lowerPortLimit; | ||
| } | ||
| } | ||
| return -1; | ||
| } | ||
| } | ||
|
|
||
| private static boolean isPortReserved(int port) { | ||
| for (int prohibitedPort : reservedPorts) { | ||
| if (port == prohibitedPort) { | ||
| return true; | ||
| } | ||
| } | ||
| return false; | ||
| } | ||
| } |
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