| /* |
| * 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.parquet; |
| |
| import org.apache.parquet.SemanticVersion.SemanticVersionParseException; |
| import java.util.regex.Matcher; |
| import java.util.regex.Pattern; |
| |
| import static org.apache.parquet.Preconditions.checkArgument; |
| |
| /** |
| * Parses a parquet Version string |
| * Tolerates missing semver and buildhash |
| * (semver and build hash may be null) |
| */ |
| public class VersionParser { |
| // example: parquet-mr version 1.8.0rc2-SNAPSHOT (build ddb469afac70404ea63b72ed2f07a911a8592ff7) |
| public static final String FORMAT = "(.*?)\\s+version\\s*(?:([^(]*?)\\s*(?:\\(\\s*build\\s*([^)]*?)\\s*\\))?)?"; |
| public static final Pattern PATTERN = Pattern.compile(FORMAT); |
| |
| public static class ParsedVersion { |
| public final String application; |
| public final String version; |
| public final String appBuildHash; |
| |
| private final boolean hasSemver; |
| private final SemanticVersion semver; |
| |
| public ParsedVersion(String application, String version, String appBuildHash) { |
| checkArgument(!Strings.isNullOrEmpty(application), "application cannot be null or empty"); |
| this.application = application; |
| this.version = Strings.isNullOrEmpty(version) ? null : version; |
| this.appBuildHash = Strings.isNullOrEmpty(appBuildHash) ? null : appBuildHash; |
| |
| SemanticVersion sv; |
| boolean hasSemver; |
| try { |
| sv = SemanticVersion.parse(version); |
| hasSemver = true; |
| } catch (RuntimeException e) { |
| sv = null; |
| hasSemver = false; |
| } catch (SemanticVersionParseException e) { |
| sv = null; |
| hasSemver = false; |
| } |
| this.semver = sv; |
| this.hasSemver = hasSemver; |
| } |
| |
| public boolean hasSemanticVersion() { |
| return hasSemver; |
| } |
| |
| public SemanticVersion getSemanticVersion() { |
| return semver; |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| if (this == o) return true; |
| if (o == null || getClass() != o.getClass()) return false; |
| |
| ParsedVersion version = (ParsedVersion) o; |
| |
| if (appBuildHash != null ? !appBuildHash.equals(version.appBuildHash) : version.appBuildHash != null) |
| return false; |
| if (application != null ? !application.equals(version.application) : version.application != null) return false; |
| if (this.version != null ? !this.version.equals(version.version) : version.version != null) return false; |
| |
| return true; |
| } |
| |
| @Override |
| public int hashCode() { |
| int result = application != null ? application.hashCode() : 0; |
| result = 31 * result + (version != null ? version.hashCode() : 0); |
| result = 31 * result + (appBuildHash != null ? appBuildHash.hashCode() : 0); |
| return result; |
| } |
| |
| @Override |
| public String toString() { |
| return "ParsedVersion(" + |
| "application=" + application + |
| ", semver=" + version + |
| ", appBuildHash=" + appBuildHash + |
| ')'; |
| } |
| } |
| |
| public static ParsedVersion parse(String createdBy) throws VersionParseException { |
| Matcher matcher = PATTERN.matcher(createdBy); |
| |
| if(!matcher.matches()){ |
| throw new VersionParseException("Could not parse created_by: " + createdBy + " using format: " + FORMAT); |
| } |
| |
| String application = matcher.group(1); |
| String semver = matcher.group(2); |
| String appBuildHash = matcher.group(3); |
| |
| if (Strings.isNullOrEmpty(application)) { |
| throw new VersionParseException("application cannot be null or empty"); |
| } |
| |
| return new ParsedVersion(application, semver, appBuildHash); |
| } |
| |
| public static class VersionParseException extends Exception { |
| public VersionParseException(String message) { |
| super(message); |
| } |
| } |
| |
| } |