| /* |
| * 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.karaf.features; |
| |
| import java.net.MalformedURLException; |
| import java.util.regex.Matcher; |
| import java.util.regex.Pattern; |
| |
| import org.apache.felix.utils.version.VersionCleaner; |
| import org.apache.felix.utils.version.VersionRange; |
| import org.apache.karaf.util.maven.Parser; |
| import org.osgi.framework.Version; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * <p>Helper class to compare Maven URIs (and falling back to other URIs) that may use globs and version ranges.</p> |
| * |
| * <p>Each Maven URI may contain these components: groupId, artifactId, optional version, optional type and optional |
| * classifier. Concrete URIs do not use globs and use precise versions (we do not consider <code>LATEST</code> |
| * and <code>RELEASE</code> Maven versions here).</p> |
| * |
| * <p>When comparing two Maven URIs, we split them to components and may use RegExps and |
| * {@link org.apache.felix.utils.version.VersionRange}s</p> |
| * |
| * <p>When pattern URI doesn't use <code>mvn:</code> scheme, plain {@link String#equals(Object)} is used or |
| * {@link Matcher#matches()} when pattern uses <code>*</code> glob.</p> |
| */ |
| public class LocationPattern { |
| |
| public static Logger LOG = LoggerFactory.getLogger(LocationPattern.class); |
| |
| private String originalUri; |
| private Pattern originalPattern; |
| private String groupId; |
| private Pattern groupIdPattern; |
| private String artifactId; |
| private Pattern artifactIdPattern; |
| private String versionString; |
| private Version version; |
| private VersionRange versionRange; |
| private String type; |
| private Pattern typePattern; |
| private String classifier; |
| private Pattern classifierPattern; |
| |
| public LocationPattern(String uri) throws IllegalArgumentException { |
| if (uri == null) { |
| throw new IllegalArgumentException("URI to match should not be null"); |
| } |
| originalUri = uri; |
| if (!originalUri.startsWith("mvn:")) { |
| originalPattern = toRegExp(originalUri); |
| } else { |
| uri = uri.substring(4); |
| Parser parser = null; |
| try { |
| parser = new Parser(uri); |
| } catch (MalformedURLException e) { |
| throw new IllegalArgumentException(e.getMessage(), e); |
| } |
| if (Parser.VERSION_LATEST.equals(parser.getVersion())) { |
| parser.setVersion(null); |
| } |
| groupId = parser.getGroup(); |
| if (groupId.contains("*")) { |
| groupIdPattern = toRegExp(groupId); |
| } |
| artifactId = parser.getArtifact(); |
| if (artifactId.contains("*")) { |
| artifactIdPattern = toRegExp(artifactId); |
| } |
| versionString = parser.getVersion(); |
| if (versionString != null && versionString.length() >= 1) { |
| try { |
| char first = versionString.charAt(0); |
| if (first == '[' || first == '(') { |
| // range |
| versionRange = new VersionRange(versionString, true, false); |
| } else { |
| version = new Version(VersionCleaner.clean(versionString)); |
| } |
| } catch (IllegalArgumentException e) { |
| IllegalArgumentException mue = new IllegalArgumentException("Can't parse version \"" + versionString + "\" as OSGi version object.", e); |
| throw mue; |
| } |
| } |
| type = parser.getType(); |
| if (type != null && type.contains("*")) { |
| typePattern = toRegExp(type); |
| } |
| classifier = parser.getClassifier(); |
| if (classifier != null && classifier.contains("*")) { |
| classifierPattern = toRegExp(classifier); |
| } |
| } |
| } |
| |
| public String getOriginalUri() { |
| return originalUri; |
| } |
| |
| public String getGroupId() { |
| return groupId; |
| } |
| |
| public String getArtifactId() { |
| return artifactId; |
| } |
| |
| public String getVersionString() { |
| return versionString; |
| } |
| |
| /** |
| * Converts a String with one special character (<code>*</code>) into working {@link Pattern} |
| * @param value |
| * @return |
| */ |
| public static Pattern toRegExp(String value) { |
| // TODO: escape all RegExp special chars that are valid path characters, only convert '*' into '.*' |
| return Pattern.compile(value |
| .replaceAll("\\.", "\\\\\\.") |
| .replaceAll("\\$", "\\\\\\$") |
| .replaceAll("\\^", "\\\\\\^") |
| .replaceAll("\\*", ".*") |
| ); |
| } |
| |
| /** |
| * Returns <code>true</code> if this location pattern matches other pattern. |
| * @param otherUri |
| * @return |
| */ |
| public boolean matches(String otherUri) { |
| if (otherUri == null) { |
| return false; |
| } |
| if (originalPattern != null) { |
| // this pattern is not mvn: |
| return originalPattern.matcher(otherUri).matches(); |
| } |
| |
| LocationPattern other; |
| try { |
| other = new LocationPattern(otherUri); |
| } catch (IllegalArgumentException e) { |
| LOG.debug("Can't parse \"" + otherUri + "\" as Maven URI. Ignoring."); |
| return false; |
| } |
| |
| if (other.originalPattern != null) { |
| // other pattern is not mvn: |
| return false; |
| } |
| |
| if (other.versionRange != null) { |
| LOG.warn("Matched URI can't use version ranges: " + otherUri); |
| return false; |
| } |
| |
| boolean match; |
| |
| if (groupIdPattern == null) { |
| match = groupId.equals(other.groupId); |
| } else { |
| match = groupIdPattern.matcher(other.groupId).matches(); |
| } |
| if (!match) { |
| return false; |
| } |
| if (artifactIdPattern == null) { |
| match = artifactId.equals(other.artifactId); |
| } else { |
| match = artifactIdPattern.matcher(other.artifactId).matches(); |
| } |
| if (!match) { |
| return false; |
| } |
| if (versionRange != null && other.version != null) { |
| match = versionRange.contains(other.version); |
| } else { |
| match = version == null || version.equals(other.version); |
| } |
| if (!match) { |
| return false; |
| } |
| if (typePattern != null) { |
| match = typePattern.matcher(other.type == null ? "jar" : other.type).matches(); |
| } else { |
| match = versionString == null || type.equals(other.type); |
| } |
| if (!match) { |
| return false; |
| } |
| if (classifierPattern != null) { |
| match = classifierPattern.matcher(other.classifier == null ? "" : other.classifier).matches(); |
| } else if (classifier != null) { |
| match = classifier.equals(other.classifier); |
| } else { |
| match = other.classifierPattern == null; |
| } |
| |
| return match; |
| } |
| |
| /** |
| * Returns {@code true} if this location pattern strictly matches other pattern. |
| * <p> |
| * In a strict match, if this instance doesn't contain a classifier, |
| * it won't match against an otherUri which contains one. |
| */ |
| public boolean strictlyMatches(String otherUri) { |
| boolean match = matches(otherUri); |
| if (!match) return false; |
| // refine the loose match |
| LocationPattern other = null; |
| try { |
| other = new LocationPattern(otherUri); |
| } catch (IllegalArgumentException ignored) { |
| return true; // not a "mvn:" uri |
| } |
| if (classifierPattern == null && classifier == null) { |
| match = other.classifierPattern == null && other.classifier == null; |
| } |
| return match; |
| } |
| |
| @Override |
| public String toString() { |
| return originalUri; |
| } |
| |
| } |