| /* |
| * 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.ignite.internal.client; |
| |
| import java.io.Serializable; |
| import java.net.Inet6Address; |
| import java.net.UnknownHostException; |
| |
| import org.apache.ignite.lang.IgniteException; |
| |
| /** |
| * Represents address along with port range. |
| */ |
| public class HostAndPortRange implements Serializable { |
| /** */ |
| private static final long serialVersionUID = 0L; |
| |
| /** Host. */ |
| private final String host; |
| |
| /** Port from. */ |
| private final int portFrom; |
| |
| /** Port to. */ |
| private final int portTo; |
| |
| /** |
| * Parse string into host and port pair. |
| * |
| * @param addrStr String. |
| * @param dfltPortFrom Default port from. |
| * @param dfltPortTo Default port to. |
| * @param errMsgPrefix Error message prefix. |
| * @return Result. |
| * @throws IgniteException If failed. |
| */ |
| public static HostAndPortRange parse(String addrStr, int dfltPortFrom, int dfltPortTo, String errMsgPrefix) |
| throws IgniteException { |
| assert dfltPortFrom <= dfltPortTo; |
| |
| String host; |
| |
| String portStr; |
| int portFrom; |
| int portTo; |
| |
| if (addrStr == null || addrStr.isEmpty()) |
| throw createParseError(addrStr, errMsgPrefix, "Address is empty"); |
| |
| if (addrStr.charAt(0) == '[') { // IPv6 with port(s) |
| int hostEndIdx = addrStr.indexOf(']'); |
| |
| if (hostEndIdx == -1) |
| throw createParseError(addrStr, errMsgPrefix, "Failed to parse IPv6 address, missing ']'"); |
| |
| host = addrStr.substring(1, hostEndIdx); |
| |
| if (hostEndIdx == addrStr.length() - 1) { // no port specified, using default |
| portFrom = dfltPortFrom; |
| portTo = dfltPortTo; |
| } |
| else { // port specified |
| portStr = addrStr.substring(hostEndIdx + 2); |
| |
| int[] ports = verifyPortStr(addrStr, errMsgPrefix, portStr); |
| portFrom = ports[0]; |
| portTo = ports[1]; |
| } |
| } |
| else { // IPv4 || IPv6 without port || empty host |
| final int colIdx = addrStr.lastIndexOf(':'); |
| |
| if (colIdx > 0) { |
| if (addrStr.lastIndexOf(':', colIdx - 1) != -1) { // IPv6 without [] and port |
| try { |
| Inet6Address.getByName(addrStr); |
| host = addrStr; |
| portFrom = dfltPortFrom; |
| portTo = dfltPortTo; |
| } |
| catch (UnknownHostException e) { |
| throw createParseError(addrStr, errMsgPrefix, "IPv6 is incorrect", e); |
| } |
| } |
| else { |
| host = addrStr.substring(0, colIdx); |
| portStr = addrStr.substring(colIdx + 1); |
| int[] ports = verifyPortStr(addrStr, errMsgPrefix, portStr); |
| portFrom = ports[0]; |
| portTo = ports[1]; |
| } |
| } |
| else if (colIdx == 0) |
| throw createParseError(addrStr, errMsgPrefix, "Host name is empty"); |
| else { // Port is not specified, use defaults. |
| host = addrStr; |
| |
| portFrom = dfltPortFrom; |
| portTo = dfltPortTo; |
| } |
| } |
| |
| return new HostAndPortRange(host, portFrom, portTo); |
| } |
| |
| /** |
| * Verifies string containing single port or ports range. |
| * |
| * @param addrStr Address String. |
| * @param errMsgPrefix Error message prefix. |
| * @param portStr Port or port range string. |
| * @return Array of int[portFrom, portTo]. |
| * @throws IgniteException If failed. |
| */ |
| private static int[] verifyPortStr(String addrStr, String errMsgPrefix, String portStr) |
| throws IgniteException { |
| String portFromStr; |
| String portToStr; |
| |
| if (portStr == null || portStr.isEmpty()) |
| throw createParseError(addrStr, errMsgPrefix, "port range is not specified"); |
| |
| int portRangeIdx = portStr.indexOf(".."); |
| |
| if (portRangeIdx >= 0) { |
| // Port range is specified. |
| portFromStr = portStr.substring(0, portRangeIdx); |
| portToStr = portStr.substring(portRangeIdx + 2); |
| } |
| else { |
| // Single port is specified. |
| portFromStr = portStr; |
| portToStr = portStr; |
| } |
| |
| int portFrom = parsePort(portFromStr, addrStr, errMsgPrefix); |
| int portTo = parsePort(portToStr, addrStr, errMsgPrefix); |
| |
| if (portFrom > portTo) |
| throw createParseError(addrStr, errMsgPrefix, "start port cannot be less than end port"); |
| |
| return new int[] {portFrom, portTo}; |
| } |
| |
| /** |
| * Parse port. |
| * |
| * @param portStr Port string. |
| * @param addrStr Address string. |
| * @param errMsgPrefix Error message prefix. |
| * @return Parsed port. |
| * @throws IgniteException If failed. |
| */ |
| private static int parsePort(String portStr, String addrStr, String errMsgPrefix) throws IgniteException { |
| try { |
| int port = Integer.parseInt(portStr); |
| |
| if (port <= 0 || port > 65535) |
| throw createParseError(addrStr, errMsgPrefix, "port range contains invalid port " + portStr); |
| |
| return port; |
| } |
| catch (NumberFormatException ignored) { |
| throw createParseError(addrStr, errMsgPrefix, "port range contains invalid port " + portStr); |
| } |
| } |
| |
| /** |
| * Create parse error. |
| * |
| * @param addrStr Address string. |
| * @param errMsgPrefix Error message prefix. |
| * @param errMsg Error message. |
| * @return Exception. |
| */ |
| private static IgniteException createParseError(String addrStr, String errMsgPrefix, String errMsg) { |
| return new IgniteException(errMsgPrefix + " (" + errMsg + "): " + addrStr); |
| } |
| |
| /** |
| * Create parse error with cause - nested exception. |
| * |
| * @param addrStr Address string. |
| * @param errMsgPrefix Error message prefix. |
| * @param errMsg Error message. |
| * @param cause Cause exception. |
| * @return Exception. |
| */ |
| private static IgniteException createParseError(String addrStr, String errMsgPrefix, String errMsg, Throwable cause) { |
| return new IgniteException(errMsgPrefix + " (" + errMsg + "): " + addrStr, cause); |
| } |
| |
| /** |
| * Constructor. |
| * |
| * @param host Host. |
| * @param port Port. |
| */ |
| public HostAndPortRange(String host, int port) { |
| this(host, port, port); |
| } |
| |
| /** |
| * Constructor. |
| * |
| * @param host Host. |
| * @param portFrom Port from. |
| * @param portTo Port to. |
| */ |
| public HostAndPortRange(String host, int portFrom, int portTo) { |
| assert host != null && !host.isEmpty(); |
| assert portFrom <= portTo && portFrom > 0 && portTo < 65535; |
| |
| this.host = host; |
| this.portFrom = portFrom; |
| this.portTo = portTo; |
| } |
| |
| /** |
| * @return Host. |
| */ |
| public String host() { |
| return host; |
| } |
| |
| /** |
| * @return Port from. |
| */ |
| public int portFrom() { |
| return portFrom; |
| } |
| |
| /** |
| * @return Port to. |
| */ |
| public int portTo() { |
| return portTo; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public boolean equals(Object o) { |
| if (o instanceof HostAndPortRange) { |
| HostAndPortRange other = (HostAndPortRange)o; |
| |
| return host.equals(other.host) && portFrom == other.portFrom && portTo == other.portTo; |
| } |
| else |
| return false; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public int hashCode() { |
| int res = host.hashCode(); |
| |
| res = 31 * res + portFrom; |
| res = 31 * res + portTo; |
| |
| return res; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public String toString() { |
| return host + ":" + (portFrom == portTo ? portFrom : portFrom + ".." + portTo); |
| } |
| } |