| /** |
| * 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.tajo.validation; |
| |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.regex.Pattern; |
| |
| import org.apache.http.conn.util.InetAddressUtils; |
| |
| public class NetworkAddressValidator extends AbstractValidator { |
| |
| private final Pattern hostnamePattern; |
| private final Pattern portNumberPattern; |
| |
| public NetworkAddressValidator() { |
| hostnamePattern = Pattern.compile( |
| "^\\w[\\w-]*(\\.\\w[\\w-]*)*\\.[a-zA-Z][\\w-]*.?$|[a-zA-Z][\\w-]*.?$"); |
| portNumberPattern = Pattern.compile("^[1-6]?[0-9]{1,4}$"); |
| } |
| |
| @Override |
| protected <T> String getErrorMessage(T object) { |
| return object + " is not a valid network address representation."; |
| } |
| |
| @Override |
| protected <T> boolean validateInternal(T object) { |
| boolean result = false; |
| |
| if (object != null) { |
| if (object instanceof CharSequence) { |
| String valueString = object.toString(); |
| if (valueString.isEmpty()) { |
| result = true; |
| } else { |
| int separatorIdx = valueString.indexOf(':'); |
| String hostOrIpAddress = null; |
| |
| if (separatorIdx > -1) { |
| if (valueString.indexOf(':', separatorIdx+1) > -1) { |
| // it is IPV6 representation. |
| int leftBracketsIdx = valueString.indexOf('['); |
| int rightBracketsIdx = valueString.indexOf(']'); |
| int periodIdx = valueString.indexOf('.'); |
| |
| if ((leftBracketsIdx > -1) && (rightBracketsIdx > -1) && |
| (valueString.length() > (rightBracketsIdx+1)) && |
| valueString.charAt(rightBracketsIdx+1) == ':') { |
| hostOrIpAddress = valueString.substring(leftBracketsIdx+1, rightBracketsIdx); |
| separatorIdx = rightBracketsIdx+1; |
| } else if ((periodIdx > -1)) { |
| hostOrIpAddress = valueString.substring(0, periodIdx); |
| separatorIdx = periodIdx; |
| } else { |
| separatorIdx = valueString.lastIndexOf(':'); |
| hostOrIpAddress = valueString.substring(0, separatorIdx); |
| } |
| } else { |
| hostOrIpAddress = valueString.substring(0, separatorIdx); |
| } |
| } else { |
| hostOrIpAddress = valueString; |
| } |
| |
| result = ((hostnamePattern.matcher(hostOrIpAddress).find()) | |
| InetAddressUtils.isIPv4Address(hostOrIpAddress) | |
| InetAddressUtils.isIPv6Address(hostOrIpAddress)); |
| |
| if (separatorIdx > -1) { |
| result &= portNumberPattern.matcher(valueString.substring(separatorIdx + 1)).find(); |
| } |
| } |
| } |
| } else { |
| result = true; |
| } |
| |
| return result; |
| } |
| |
| @Override |
| protected Collection<Validator> getDependantValidators() { |
| return Collections.emptySet(); |
| } |
| |
| } |