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
  27 import org.apache.commons.logging.Log;
  28 import org.apache.commons.logging.LogFactory;
  29 import org.argeo.jcr.ArgeoNames;
  30 import org.argeo.jcr.JcrUtils;
  31 import org.argeo.jcr.proxy.AbstractUrlProxy;
  32 import org.argeo.slc.SlcException;
  33 import org.argeo.slc.jcr.SlcNames;
  34 import org.argeo.slc.jcr.SlcTypes;
  35 import org.argeo.slc.repo.MavenProxyService;
  36 import org.argeo.slc.repo.RepoConstants;
  37 import org.sonatype.aether.repository.RemoteRepository;
  38
  39 /** Synchronises the node repository with remote Maven repositories */
  40 public class MavenProxyServiceImpl extends AbstractUrlProxy implements
  41                 MavenProxyService, ArgeoNames, SlcNames {
  42         private final static Log log = LogFactory
  43                         .getLog(MavenProxyServiceImpl.class);
  44
  45         private List<RemoteRepository> defaultRepositories = new ArrayList<RemoteRepository>();
  46
  47         /** Initialises the artifacts area. */
  48         @Override
  49         protected void beforeInitSessionSave(Session session)
  50                         throws RepositoryException {
  51                 JcrUtils.mkdirsSafe(session, RepoConstants.DEFAULT_ARTIFACTS_BASE_PATH);
  52                 Node proxiedRepositories = JcrUtils.mkdirsSafe(session,
  53                                 RepoConstants.PROXIED_REPOSITORIES);
  54                 for (RemoteRepository repository : defaultRepositories) {
  55                         if (!proxiedRepositories.hasNode(repository.getId())) {
  56                                 Node proxiedRepository = proxiedRepositories.addNode(repository
  57                                                 .getId());
  58                                 proxiedRepository.addMixin(NodeType.MIX_REFERENCEABLE);
  59                                 JcrUtils.urlToAddressProperties(proxiedRepository,
  60                                                 repository.getUrl());
  61                                 // proxiedRepository.setProperty(SLC_URL, repository.getUrl());
  62                                 proxiedRepository.setProperty(SLC_TYPE,
  63                                                 repository.getContentType());
  64                         }
  65                 }
  66         }
  67
  68         /**
  69          * Retrieve and add this file to the repository
  70          */
  71         @Override
  72         protected Node retrieve(Session session, String path) {
  73                 try {
  74                         if (session.hasPendingChanges())
  75                                 throw new SlcException("Session has pending changed");
  76                         Node node = null;
  77                         for (Node proxiedRepository : getBaseUrls(session)) {
  78                                 String baseUrl = JcrUtils
  79                                                 .urlFromAddressProperties(proxiedRepository);
  80                                 node = proxyUrl(session, baseUrl, path);
  81                                 if (node != null) {
  82                                         node.addMixin(SlcTypes.SLC_KNOWN_ORIGIN);
  83                                         Node origin = node
  84                                                         .addNode(SLC_ORIGIN, SlcTypes.SLC_PROXIED);
  85                                         origin.setProperty(SLC_PROXY, proxiedRepository);
  86                                         JcrUtils.urlToAddressProperties(origin, baseUrl + path);
  87                                         if (log.isDebugEnabled())
  88                                                 log.debug("Imported " + baseUrl + path + " to " + node);
  89                                         return node;
  90                                 }
  91                         }
  92                         if (log.isDebugEnabled())
  93                                 log.warn("No proxy found for " + path);
  94                         return null;
  95                 } catch (Exception e) {
  96                         throw new SlcException("Cannot proxy " + path, e);
  97                 }
  98         }
  99
 100         protected synchronized List<Node> getBaseUrls(Session session)
 101                         throws RepositoryException {
 102                 List<Node> baseUrls = new ArrayList<Node>();
 103                 for (NodeIterator nit = session.getNode(
 104                                 RepoConstants.PROXIED_REPOSITORIES).getNodes(); nit.hasNext();) {
 105                         Node proxiedRepository = nit.nextNode();
 106                         baseUrls.add(proxiedRepository);
 107                 }
 108                 return baseUrls;
 109         }
 110
 111         public void setDefaultRepositories(
 112                         List<RemoteRepository> defaultRepositories) {
 113                 this.defaultRepositories = defaultRepositories;
 114         }
 115 }