Java tutorial
/* * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF 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.apache.stratos.cartridge.agent.util; import org.apache.commons.codec.binary.Base64; import org.apache.commons.lang3.StringUtils; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.apache.stratos.cartridge.agent.config.CartridgeAgentConfiguration; import javax.crypto.Cipher; import javax.crypto.SecretKey; import javax.crypto.spec.SecretKeySpec; import java.io.IOException; import java.net.InetSocketAddress; import java.net.Socket; import java.net.SocketAddress; import java.util.ArrayList; import java.util.List; import java.util.StringTokenizer; /** * Cartridge agent utility methods. */ public class CartridgeAgentUtils { private static final Log log = LogFactory.getLog(CartridgeAgentUtils.class); public static List<String> splitUsingTokenizer(String string, String delimiter) { StringTokenizer tokenizer = new StringTokenizer(string, delimiter); List<String> list = new ArrayList<String>(string.length()); while (tokenizer.hasMoreTokens()) { list.add(tokenizer.nextToken().trim()); } return list; } public static String decryptPassword(String repoUserPassword) { if (repoUserPassword == null) { return repoUserPassword; } String decryptPassword = ""; String secret = CartridgeAgentConfiguration.getInstance().getCartridgeKey(); SecretKey key; Cipher cipher; Base64 coder; key = new SecretKeySpec(secret.getBytes(), "AES"); try { cipher = Cipher.getInstance("AES/ECB/PKCS5Padding", "SunJCE"); coder = new Base64(); byte[] encrypted = coder.decode(repoUserPassword.getBytes()); cipher.init(Cipher.DECRYPT_MODE, key); byte[] decrypted = cipher.doFinal(encrypted); decryptPassword = new String(decrypted); } catch (Exception e) { log.error("Exception has occurred. " + e.getMessage()); e.printStackTrace(); } if (log.isDebugEnabled()) { log.debug("Decrypted PWD : [" + decryptPassword + "] "); } return decryptPassword; } public static void waitUntilPortsActive(String ipAddress, List<Integer> ports) { long portCheckTimeOut = 1000 * 60 * 10; String portCheckTimeOutStr = System.getProperty("port.check.timeout"); if (StringUtils.isNotBlank(portCheckTimeOutStr)) { portCheckTimeOut = Integer.parseInt(portCheckTimeOutStr); } if (log.isDebugEnabled()) { log.debug("Port check timeout: " + portCheckTimeOut); } long startTime = System.currentTimeMillis(); boolean active = false; while (!active) { if (log.isInfoEnabled()) { log.info("Waiting for ports to be active: [ip] " + ipAddress + " [ports] " + ports); } active = checkPortsActive(ipAddress, ports); long endTime = System.currentTimeMillis(); long duration = endTime - startTime; if (duration > portCheckTimeOut) { return; } try { Thread.sleep(5000); } catch (InterruptedException e) { } } if (log.isInfoEnabled()) { log.info("Ports activated: [ip] " + ipAddress + " [ports] " + ports); } } public static boolean checkPortsActive(String ipAddress, List<Integer> ports) { //List<Integer> ports = CartridgeAgentConfiguration.getInstance().getPorts(); if (ports.size() == 0) { throw new RuntimeException("No ports found"); } for (int port : ports) { Socket socket = null; try { SocketAddress httpSockaddr = new InetSocketAddress(ipAddress, port); socket = new Socket(); socket.connect(httpSockaddr, 5000); if (log.isDebugEnabled()) { log.debug(String.format("Port %s is active", port)); } } catch (Exception e) { if (log.isDebugEnabled()) { log.debug(String.format("Port %s is not active", port)); } return false; } finally { if (socket != null) { try { socket.close(); } catch (IOException e) { } } } } return true; } }