| /* |
| * 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.maven.rtinfo.internal; |
| |
| import javax.inject.Inject; |
| import javax.inject.Named; |
| import javax.inject.Singleton; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.util.Objects; |
| import java.util.Properties; |
| |
| import org.apache.maven.rtinfo.RuntimeInformation; |
| import org.eclipse.aether.version.InvalidVersionSpecificationException; |
| import org.eclipse.aether.version.Version; |
| import org.eclipse.aether.version.VersionConstraint; |
| import org.eclipse.aether.version.VersionScheme; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * Provides information about the current Maven runtime. |
| */ |
| @Named |
| @Singleton |
| public class DefaultRuntimeInformation implements RuntimeInformation { |
| private final Logger logger = LoggerFactory.getLogger(getClass()); |
| |
| private final VersionScheme versionScheme; |
| |
| private final String mavenVersion; |
| |
| @Inject |
| public DefaultRuntimeInformation(final VersionScheme versionScheme) { |
| this.versionScheme = versionScheme; |
| this.mavenVersion = loadMavenVersion(); |
| } |
| |
| @Override |
| public String getMavenVersion() { |
| return mavenVersion; |
| } |
| |
| private String loadMavenVersion() { |
| Properties props = new Properties(); |
| |
| String resource = "META-INF/maven/org.apache.maven/maven-core/pom.properties"; |
| |
| try (InputStream is = DefaultRuntimeInformation.class.getResourceAsStream("/" + resource)) { |
| if (is != null) { |
| props.load(is); |
| } else { |
| logger.warn("Could not locate " + resource + " on classpath, Maven runtime information not available"); |
| } |
| } catch (IOException e) { |
| String msg = "Could not parse " + resource + ", Maven runtime information not available"; |
| if (logger.isDebugEnabled()) { |
| logger.warn(msg, e); |
| } else { |
| logger.warn(msg); |
| } |
| } |
| |
| String version = props.getProperty("version", "").trim(); |
| |
| if (!version.startsWith("${")) { |
| return version; |
| } else { |
| return ""; |
| } |
| } |
| |
| @Override |
| public boolean isMavenVersion(String versionRange) { |
| if (Objects.requireNonNull(versionRange, "versionRange cannot be null").isEmpty()) { |
| throw new IllegalArgumentException("versionRange cannot be empty"); |
| } |
| |
| VersionConstraint constraint; |
| try { |
| constraint = versionScheme.parseVersionConstraint(versionRange); |
| } catch (InvalidVersionSpecificationException e) { |
| throw new IllegalArgumentException(e.getMessage(), e); |
| } |
| |
| Version current; |
| try { |
| String mavenVersion = getMavenVersion(); |
| if (mavenVersion.isEmpty()) { |
| throw new IllegalArgumentException("Could not determine current Maven version"); |
| } |
| |
| current = versionScheme.parseVersion(mavenVersion); |
| } catch (InvalidVersionSpecificationException e) { |
| throw new IllegalStateException("Could not parse current Maven version: " + e.getMessage(), e); |
| } |
| |
| if (constraint.getRange() == null) { |
| return constraint.getVersion().compareTo(current) <= 0; |
| } |
| return constraint.containsVersion(current); |
| } |
| } |