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features/core/src/main/java/org/apache/karaf/features/internal/service/RepositoryCache.java
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| /* | ||
| * 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.internal.service; | ||
|
|
||
| import java.net.URI; | ||
| import java.util.ArrayList; | ||
| import java.util.HashMap; | ||
| import java.util.HashSet; | ||
| import java.util.List; | ||
| import java.util.Map; | ||
| import java.util.Set; | ||
|
|
||
| import org.apache.felix.utils.manifest.Clause; | ||
| import org.apache.felix.utils.manifest.Parser; | ||
| import org.apache.karaf.features.Repository; | ||
| import org.slf4j.Logger; | ||
| import org.slf4j.LoggerFactory; | ||
|
|
||
| public class RepositoryCache { | ||
| private static final Logger LOGGER = LoggerFactory.getLogger(RepositoryCache.class); | ||
| private final Map<String, Repository> repositoryCache = new HashMap<>(); | ||
| private final Clause[] blacklisted; | ||
|
|
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| public RepositoryCache(String blacklisted) { | ||
| this.blacklisted = loadBlacklist(blacklisted); | ||
| } | ||
|
|
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| private Clause[] loadBlacklist(String blacklisted) { | ||
| Set<String> blacklistStrings = Blacklist.loadBlacklist(blacklisted); | ||
| return Parser.parseClauses(blacklistStrings.toArray(new String[blacklistStrings.size()])); | ||
| } | ||
|
|
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| public Repository load(URI uri) throws Exception { | ||
| return new RepositoryImpl(uri, blacklisted); | ||
| } | ||
|
|
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| public Repository loadAndValidate(URI uri) throws Exception { | ||
| RepositoryImpl repo = new RepositoryImpl(uri, blacklisted); | ||
| repo.load(true); | ||
| return repo; | ||
| } | ||
|
|
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| public synchronized void addRepository(Repository repository) throws Exception { | ||
| String repoUriSt = repository.getURI().toString(); | ||
| repositoryCache.put(repoUriSt, repository); | ||
| } | ||
|
|
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| public synchronized void removeRepository(URI repositoryUri) throws Exception { | ||
| List<String> toRemove = new ArrayList<>(); | ||
| toRemove.add(repositoryUri.toString()); | ||
| while (!toRemove.isEmpty()) { | ||
| Repository rep = repositoryCache.remove(toRemove.remove(0)); | ||
| if (rep != null) { | ||
| for (URI u : rep.getRepositories()) { | ||
| toRemove.add(u.toString()); | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
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| public synchronized Repository[] listRepositories() { | ||
| return repositoryCache.values().toArray(new Repository[repositoryCache.size()]); | ||
| } | ||
|
|
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| public synchronized Repository[] listRequiredRepositories(Set<String> topLevelRepoUris) throws Exception { | ||
| List<Repository> repos = new ArrayList<>(); | ||
| for (Map.Entry<String, Repository> entry : repositoryCache.entrySet()) { | ||
| if (topLevelRepoUris.contains(entry.getKey())) { | ||
| repos.add(entry.getValue()); | ||
| } | ||
| } | ||
| return repos.toArray(new Repository[repos.size()]); | ||
| } | ||
|
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| public synchronized Repository getRepository(String name) throws Exception { | ||
| for (Repository repo : this.repositoryCache.values()) { | ||
| if (name.equals(repo.getName())) { | ||
| return repo; | ||
| } | ||
| } | ||
| return null; | ||
| } | ||
|
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| public synchronized Repository getRepository(URI uri) throws Exception { | ||
| for (Repository repo : this.repositoryCache.values()) { | ||
| if (repo.getURI().equals(uri)) { | ||
| return repo; | ||
| } | ||
| } | ||
| return null; | ||
| } | ||
|
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| public String getRepositoryName(URI uri) throws Exception { | ||
| Repository repo = getRepository(uri); | ||
| return (repo != null) ? repo.getName() : null; | ||
| } | ||
|
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| public synchronized void loadDependent(Set<String> topLevelRepoUris) { | ||
| Set<String> loaded = new HashSet<>(); | ||
| List<String> toLoad = new ArrayList<>(topLevelRepoUris); | ||
| while (!toLoad.isEmpty()) { | ||
| String uri = toLoad.remove(0); | ||
| Repository repo = repositoryCache.get(uri); | ||
| try { | ||
| if (repo == null) { | ||
| repo = load(URI.create(uri)); | ||
| repositoryCache.put(uri, repo); | ||
| } | ||
| if (loaded.add(uri)) { | ||
| for (URI u : repo.getRepositories()) { | ||
| toLoad.add(u.toString()); | ||
| } | ||
| } | ||
| } catch (Exception e) { | ||
| LOGGER.warn("Can't load features repository {}", uri, e); | ||
| } | ||
| } | ||
| } | ||
|
|
||
| } |