| /* |
| * 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.felix.bundlerepository.impl; |
| |
| import java.net.MalformedURLException; |
| import java.net.URL; |
| import java.security.AccessController; |
| import java.security.PrivilegedActionException; |
| import java.security.PrivilegedExceptionAction; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.Comparator; |
| import java.util.LinkedHashMap; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.StringTokenizer; |
| |
| import org.apache.felix.bundlerepository.Capability; |
| import org.apache.felix.bundlerepository.DataModelHelper; |
| import org.apache.felix.bundlerepository.Repository; |
| import org.apache.felix.bundlerepository.RepositoryAdmin; |
| import org.apache.felix.bundlerepository.Requirement; |
| import org.apache.felix.bundlerepository.Resolver; |
| import org.apache.felix.bundlerepository.Resource; |
| import org.apache.felix.utils.collections.MapToDictionary; |
| import org.apache.felix.utils.log.Logger; |
| import org.osgi.framework.BundleContext; |
| import org.osgi.framework.Filter; |
| import org.osgi.framework.InvalidSyntaxException; |
| |
| public class RepositoryAdminImpl implements RepositoryAdmin |
| { |
| private final BundleContext m_context; |
| private final Logger m_logger; |
| private final SystemRepositoryImpl m_system; |
| private final LocalRepositoryImpl m_local; |
| private final DataModelHelper m_helper = new DataModelHelperImpl(); |
| private Map m_repoMap = new LinkedHashMap(); |
| private boolean m_initialized = false; |
| |
| // Reusable comparator for sorting resources by name. |
| private Comparator m_nameComparator = new ResourceComparator(); |
| |
| public static final String REPOSITORY_URL_PROP = "obr.repository.url"; |
| public static final String EXTERN_REPOSITORY_TAG = "extern-repositories"; |
| |
| public RepositoryAdminImpl(BundleContext context, Logger logger) |
| { |
| m_context = context; |
| m_logger = logger; |
| m_system = new SystemRepositoryImpl(context, logger); |
| m_local = new LocalRepositoryImpl(context, logger); |
| } |
| |
| public DataModelHelper getHelper() |
| { |
| return m_helper; |
| } |
| |
| public Repository getLocalRepository() |
| { |
| return m_local; |
| } |
| |
| public Repository getSystemRepository() |
| { |
| return m_system; |
| } |
| |
| public void dispose() |
| { |
| m_local.dispose(); |
| } |
| |
| public Repository addRepository(String uri) throws Exception |
| { |
| return addRepository(new URL(uri)); |
| } |
| |
| public Repository addRepository(URL url) throws Exception |
| { |
| return addRepository(url, Integer.MAX_VALUE); |
| } |
| |
| public synchronized RepositoryImpl addRepository(final URL url, int hopCount) throws Exception |
| { |
| initialize(); |
| |
| // If the repository URL is a duplicate, then we will just |
| // replace the existing repository object with a new one, |
| // which is effectively the same as refreshing the repository. |
| try |
| { |
| RepositoryImpl repository = (RepositoryImpl) AccessController.doPrivileged(new PrivilegedExceptionAction() |
| { |
| public Object run() throws Exception |
| { |
| return m_helper.repository(url); |
| } |
| }); |
| m_repoMap.put(url.toExternalForm(), repository); |
| |
| // resolve referrals |
| hopCount--; |
| if (hopCount > 0 && repository.getReferrals() != null) |
| { |
| for (int i = 0; i < repository.getReferrals().length; i++) |
| { |
| Referral referral = repository.getReferrals()[i]; |
| |
| URL referralUrl = new URL(url, referral.getUrl()); |
| hopCount = (referral.getDepth() > hopCount) ? hopCount : referral.getDepth(); |
| |
| addRepository(referralUrl, hopCount); |
| } |
| } |
| |
| return repository; |
| } |
| catch (PrivilegedActionException ex) |
| { |
| throw (Exception) ex.getCause(); |
| } |
| |
| } |
| |
| public synchronized boolean removeRepository(String uri) |
| { |
| initialize(); |
| |
| try |
| { |
| URL url = new URL(uri); |
| return m_repoMap.remove(url.toExternalForm()) != null; |
| } |
| catch (MalformedURLException e) |
| { |
| return m_repoMap.remove(uri) != null; |
| } |
| } |
| |
| public synchronized Repository[] listRepositories() |
| { |
| initialize(); |
| |
| return (Repository[]) m_repoMap.values().toArray(new Repository[m_repoMap.size()]); |
| } |
| |
| public synchronized Resolver resolver() |
| { |
| initialize(); |
| |
| List repositories = new ArrayList(); |
| repositories.add(m_system); |
| repositories.add(m_local); |
| repositories.addAll(m_repoMap.values()); |
| return resolver((Repository[]) repositories.toArray(new Repository[repositories.size()])); |
| } |
| |
| public synchronized Resolver resolver(Repository[] repositories) |
| { |
| initialize(); |
| |
| if (repositories == null) |
| { |
| return resolver(); |
| } |
| return new ResolverImpl(m_context, repositories, m_logger); |
| } |
| |
| public synchronized Resource[] discoverResources(String filterExpr) throws InvalidSyntaxException |
| { |
| initialize(); |
| |
| Filter filter = filterExpr != null ? m_helper.filter(filterExpr) : null; |
| Resource[] resources; |
| MapToDictionary dict = new MapToDictionary(null); |
| Repository[] repos = listRepositories(); |
| List matchList = new ArrayList(); |
| for (int repoIdx = 0; (repos != null) && (repoIdx < repos.length); repoIdx++) |
| { |
| resources = repos[repoIdx].getResources(); |
| for (int resIdx = 0; (resources != null) && (resIdx < resources.length); resIdx++) |
| { |
| dict.setSourceMap(resources[resIdx].getProperties()); |
| if (filter == null || filter.match(dict)) |
| { |
| matchList.add(resources[resIdx]); |
| } |
| } |
| } |
| |
| // Convert matching resources to an array an sort them by name. |
| resources = (Resource[]) matchList.toArray(new Resource[matchList.size()]); |
| Arrays.sort(resources, m_nameComparator); |
| return resources; |
| } |
| |
| public synchronized Resource[] discoverResources(Requirement[] requirements) |
| { |
| initialize(); |
| |
| Resource[] resources = null; |
| Repository[] repos = listRepositories(); |
| List matchList = new ArrayList(); |
| for (int repoIdx = 0; (repos != null) && (repoIdx < repos.length); repoIdx++) |
| { |
| resources = repos[repoIdx].getResources(); |
| for (int resIdx = 0; (resources != null) && (resIdx < resources.length); resIdx++) |
| { |
| boolean match = true; |
| for (int reqIdx = 0; (requirements != null) && (reqIdx < requirements.length); reqIdx++) |
| { |
| boolean reqMatch = false; |
| Capability[] caps = resources[resIdx].getCapabilities(); |
| for (int capIdx = 0; (caps != null) && (capIdx < caps.length); capIdx++) |
| { |
| if (requirements[reqIdx].isSatisfied(caps[capIdx])) |
| { |
| reqMatch = true; |
| break; |
| } |
| } |
| match &= reqMatch; |
| if (!match) |
| { |
| break; |
| } |
| } |
| if (match) |
| { |
| matchList.add(resources[resIdx]); |
| } |
| } |
| } |
| |
| // Convert matching resources to an array an sort them by name. |
| resources = (Resource[]) matchList.toArray(new Resource[matchList.size()]); |
| Arrays.sort(resources, m_nameComparator); |
| return resources; |
| } |
| |
| private void initialize() |
| { |
| if (m_initialized) |
| { |
| return; |
| } |
| m_initialized = true; |
| |
| // First check the repository URL config property. |
| String urlStr = m_context.getProperty(REPOSITORY_URL_PROP); |
| if (urlStr != null) |
| { |
| StringTokenizer st = new StringTokenizer(urlStr); |
| if (st.countTokens() > 0) |
| { |
| while (st.hasMoreTokens()) |
| { |
| final String token = st.nextToken(); |
| try |
| { |
| addRepository(token); |
| } |
| catch (Exception ex) |
| { |
| m_logger.log( |
| Logger.LOG_WARNING, |
| "Repository url " + token + " cannot be used. Skipped.", |
| ex); |
| } |
| } |
| } |
| } |
| |
| } |
| |
| } |