| /** |
| * 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.metron.parsing.utils; |
| import java.io.Serializable; |
| |
| import com.google.code.regexp.Pattern; |
| |
| public class GrokUtils implements Serializable { |
| |
| private static final long serialVersionUID = 7465176887422419286L; |
| /** |
| * Extract Grok patter like %{FOO} to FOO, Also Grok pattern with semantic. |
| */ |
| public static final Pattern GROK_PATTERN = Pattern.compile( |
| "%\\{" + |
| "(?<name>" + |
| "(?<pattern>[A-z0-9]+)" + |
| "(?::(?<subname>[A-z0-9_:;\\/\\s\\.]+))?" + |
| ")" + |
| "(?:=(?<definition>" + |
| "(?:" + |
| "(?:[^{}]+|\\.+)+" + |
| ")+" + |
| ")" + |
| ")?" + |
| "\\}"); |
| |
| } |