diff options
Diffstat (limited to 'framework/src/maven/apache-maven-3.3.3/maven-compat/src/main/java/org/apache/maven/repository/DefaultMirrorSelector.java')
| -rw-r--r-- | framework/src/maven/apache-maven-3.3.3/maven-compat/src/main/java/org/apache/maven/repository/DefaultMirrorSelector.java | 205 |
1 files changed, 205 insertions, 0 deletions
diff --git a/framework/src/maven/apache-maven-3.3.3/maven-compat/src/main/java/org/apache/maven/repository/DefaultMirrorSelector.java b/framework/src/maven/apache-maven-3.3.3/maven-compat/src/main/java/org/apache/maven/repository/DefaultMirrorSelector.java new file mode 100644 index 00000000..53e7bd4a --- /dev/null +++ b/framework/src/maven/apache-maven-3.3.3/maven-compat/src/main/java/org/apache/maven/repository/DefaultMirrorSelector.java @@ -0,0 +1,205 @@ +package org.apache.maven.repository; + +/* + * 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. + */ + +import java.net.MalformedURLException; +import java.net.URL; +import java.util.List; + +import org.apache.maven.RepositoryUtils; +import org.apache.maven.artifact.repository.ArtifactRepository; +import org.apache.maven.settings.Mirror; +import org.codehaus.plexus.component.annotations.Component; +import org.codehaus.plexus.util.StringUtils; + +@Component( role = MirrorSelector.class ) +public class DefaultMirrorSelector + implements MirrorSelector +{ + + private static final String WILDCARD = "*"; + + private static final String EXTERNAL_WILDCARD = "external:*"; + + public Mirror getMirror( ArtifactRepository repository, List<Mirror> mirrors ) + { + String repoId = repository.getId(); + + if ( repoId != null && mirrors != null ) + { + for ( Mirror mirror : mirrors ) + { + if ( repoId.equals( mirror.getMirrorOf() ) && matchesLayout( repository, mirror ) ) + { + return mirror; + } + } + + for ( Mirror mirror : mirrors ) + { + if ( matchPattern( repository, mirror.getMirrorOf() ) && matchesLayout( repository, mirror ) ) + { + return mirror; + } + } + } + + return null; + } + + /** + * This method checks if the pattern matches the originalRepository. Valid patterns: * = + * everything external:* = everything not on the localhost and not file based. repo,repo1 = repo + * or repo1 *,!repo1 = everything except repo1 + * + * @param originalRepository to compare for a match. + * @param pattern used for match. Currently only '*' is supported. + * @return true if the repository is a match to this pattern. + */ + static boolean matchPattern( ArtifactRepository originalRepository, String pattern ) + { + boolean result = false; + String originalId = originalRepository.getId(); + + // simple checks first to short circuit processing below. + if ( WILDCARD.equals( pattern ) || pattern.equals( originalId ) ) + { + result = true; + } + else + { + // process the list + String[] repos = pattern.split( "," ); + for ( String repo : repos ) + { + repo = repo.trim(); + // see if this is a negative match + if ( repo.length() > 1 && repo.startsWith( "!" ) ) + { + if ( repo.substring( 1 ).equals( originalId ) ) + { + // explicitly exclude. Set result and stop processing. + result = false; + break; + } + } + // check for exact match + else if ( repo.equals( originalId ) ) + { + result = true; + break; + } + // check for external:* + else if ( EXTERNAL_WILDCARD.equals( repo ) && isExternalRepo( originalRepository ) ) + { + result = true; + // don't stop processing in case a future segment explicitly excludes this repo + } + else if ( WILDCARD.equals( repo ) ) + { + result = true; + // don't stop processing in case a future segment explicitly excludes this repo + } + } + } + return result; + } + + /** + * Checks the URL to see if this repository refers to an external repository + * + * @param originalRepository + * @return true if external. + */ + static boolean isExternalRepo( ArtifactRepository originalRepository ) + { + try + { + URL url = new URL( originalRepository.getUrl() ); + return !( url.getHost().equals( "localhost" ) || url.getHost().equals( "127.0.0.1" ) + || url.getProtocol().equals( "file" ) ); + } + catch ( MalformedURLException e ) + { + // bad url just skip it here. It should have been validated already, but the wagon lookup will deal with it + return false; + } + } + + static boolean matchesLayout( ArtifactRepository repository, Mirror mirror ) + { + return matchesLayout( RepositoryUtils.getLayout( repository ), mirror.getMirrorOfLayouts() ); + } + + /** + * Checks whether the layouts configured for a mirror match with the layout of the repository. + * + * @param repoLayout The layout of the repository, may be {@code null}. + * @param mirrorLayout The layouts supported by the mirror, may be {@code null}. + * @return {@code true} if the layouts associated with the mirror match the layout of the original repository, + * {@code false} otherwise. + */ + static boolean matchesLayout( String repoLayout, String mirrorLayout ) + { + boolean result = false; + + // simple checks first to short circuit processing below. + if ( StringUtils.isEmpty( mirrorLayout ) || WILDCARD.equals( mirrorLayout ) ) + { + result = true; + } + else if ( mirrorLayout.equals( repoLayout ) ) + { + result = true; + } + else + { + // process the list + String[] layouts = mirrorLayout.split( "," ); + for ( String layout : layouts ) + { + // see if this is a negative match + if ( layout.length() > 1 && layout.startsWith( "!" ) ) + { + if ( layout.substring( 1 ).equals( repoLayout ) ) + { + // explicitly exclude. Set result and stop processing. + result = false; + break; + } + } + // check for exact match + else if ( layout.equals( repoLayout ) ) + { + result = true; + break; + } + else if ( WILDCARD.equals( layout ) ) + { + result = true; + // don't stop processing in case a future segment explicitly excludes this repo + } + } + } + + return result; + } + +} |