runtime/org.argeo.slc.repo/src/main/java/org/argeo/slc/repo/maven/MavenProxyServiceImpl.java

   1 /*
   2  * Copyright (C) 2007-2012 Argeo GmbH
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *         http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16 package org.argeo.slc.repo.maven;
  17
  18 import java.util.ArrayList;
  19 import java.util.List;
  20
  21 import javax.jcr.Node;
  22 import javax.jcr.NodeIterator;
  23 import javax.jcr.RepositoryException;
  24 import javax.jcr.Session;
  25 import javax.jcr.nodetype.NodeType;
  26 import javax.jcr.security.AccessControlException;
  27
  28 import org.apache.commons.logging.Log;
  29 import org.apache.commons.logging.LogFactory;
  30 import org.argeo.jcr.ArgeoNames;
  31 import org.argeo.jcr.JcrUtils;
  32 import org.argeo.jcr.proxy.AbstractUrlProxy;
  33 import org.argeo.slc.SlcConstants;
  34 import org.argeo.slc.SlcException;
  35 import org.argeo.slc.jcr.SlcNames;
  36 import org.argeo.slc.jcr.SlcTypes;
  37 import org.argeo.slc.repo.MavenProxyService;
  38 import org.argeo.slc.repo.RepoConstants;
  39 import org.sonatype.aether.repository.RemoteRepository;
  40
  41 /** Synchronises the node repository with remote Maven repositories */
  42 public class MavenProxyServiceImpl extends AbstractUrlProxy implements
  43                 MavenProxyService, ArgeoNames, SlcNames {
  44         private final static Log log = LogFactory
  45                         .getLog(MavenProxyServiceImpl.class);
  46
  47         private List<RemoteRepository> defaultRepositories = new ArrayList<RemoteRepository>();
  48
  49         /** Initialises the artifacts area. */
  50         @Override
  51         protected void beforeInitSessionSave(Session session)
  52                         throws RepositoryException {
  53                 JcrUtils.addPrivilege(session, "/", "anonymous", "jcr:read");
  54                 try {
  55                         JcrUtils.addPrivilege(session, "/", SlcConstants.ROLE_SLC,
  56                                         "jcr:all");
  57                 } catch (AccessControlException e) {
  58                         if (log.isTraceEnabled())
  59                                 log.trace("Cannot give jcr:all privileges to ROLE_SLC");
  60                 }
  61
  62                 JcrUtils.mkdirsSafe(session, RepoConstants.DEFAULT_ARTIFACTS_BASE_PATH);
  63                 Node proxiedRepositories = JcrUtils.mkdirsSafe(session,
  64                                 RepoConstants.PROXIED_REPOSITORIES);
  65                 for (RemoteRepository repository : defaultRepositories) {
  66                         if (!proxiedRepositories.hasNode(repository.getId())) {
  67                                 Node proxiedRepository = proxiedRepositories.addNode(repository
  68                                                 .getId());
  69                                 proxiedRepository.addMixin(NodeType.MIX_REFERENCEABLE);
  70                                 JcrUtils.urlToAddressProperties(proxiedRepository,
  71                                                 repository.getUrl());
  72                                 // proxiedRepository.setProperty(SLC_URL, repository.getUrl());
  73                                 proxiedRepository.setProperty(SLC_TYPE,
  74                                                 repository.getContentType());
  75                         }
  76                 }
  77         }
  78
  79         /**
  80          * Retrieve and add this file to the repository
  81          */
  82         @Override
  83         protected Node retrieve(Session session, String path) {
  84                 try {
  85                         if (session.hasPendingChanges())
  86                                 throw new SlcException("Session has pending changed");
  87                         Node node = null;
  88                         for (Node proxiedRepository : getBaseUrls(session)) {
  89                                 String baseUrl = JcrUtils
  90                                                 .urlFromAddressProperties(proxiedRepository);
  91                                 node = proxyUrl(session, baseUrl, path);
  92                                 if (node != null) {
  93                                         node.addMixin(SlcTypes.SLC_KNOWN_ORIGIN);
  94                                         Node origin = node
  95                                                         .addNode(SLC_ORIGIN, SlcTypes.SLC_PROXIED);
  96                                         origin.setProperty(SLC_PROXY, proxiedRepository);
  97                                         JcrUtils.urlToAddressProperties(origin, baseUrl + path);
  98                                         if (log.isDebugEnabled())
  99                                                 log.debug("Imported " + baseUrl + path + " to " + node);
 100                                         return node;
 101                                 }
 102                         }
 103                         if (log.isDebugEnabled())
 104                                 log.warn("No proxy found for " + path);
 105                         return null;
 106                 } catch (Exception e) {
 107                         throw new SlcException("Cannot proxy " + path, e);
 108                 }
 109         }
 110
 111         protected synchronized List<Node> getBaseUrls(Session session)
 112                         throws RepositoryException {
 113                 List<Node> baseUrls = new ArrayList<Node>();
 114                 for (NodeIterator nit = session.getNode(
 115                                 RepoConstants.PROXIED_REPOSITORIES).getNodes(); nit.hasNext();) {
 116                         Node proxiedRepository = nit.nextNode();
 117                         baseUrls.add(proxiedRepository);
 118                 }
 119                 return baseUrls;
 120         }
 121
 122         public void setDefaultRepositories(
 123                         List<RemoteRepository> defaultRepositories) {
 124                 this.defaultRepositories = defaultRepositories;
 125         }
 126 }