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

   1 /*
   2  * Copyright (C) 2007-2012 Mathieu Baudier
   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.proxy;
  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.RepoConstants;
  36 import org.sonatype.aether.repository.RemoteRepository;
  37
  38 /** Synchronizes the node repository with remote Maven repositories */
  39 public class MavenProxyServiceImpl extends AbstractUrlProxy implements
  40                 MavenProxyService, ArgeoNames, SlcNames {
  41         private final static Log log = LogFactory
  42                         .getLog(MavenProxyServiceImpl.class);
  43
  44         private List<RemoteRepository> defaultRepositories = new ArrayList<RemoteRepository>();
  45
  46         private boolean rootNodeIsArtifactBase = RepoConstants.ARTIFACTS_BASE_PATH
  47                         .equals("/");
  48
  49         /** Inititalizes the artifacts area. */
  50         @Override
  51         protected void beforeInitSessionSave(Session session)
  52                         throws RepositoryException {
  53                 JcrUtils.mkdirsSafe(session, RepoConstants.ARTIFACTS_BASE_PATH);
  54                 Node proxiedRepositories = JcrUtils.mkdirsSafe(session,
  55                                 RepoConstants.PROXIED_REPOSITORIES);
  56                 for (RemoteRepository repository : defaultRepositories) {
  57                         if (!proxiedRepositories.hasNode(repository.getId())) {
  58                                 Node proxiedRepository = proxiedRepositories.addNode(repository
  59                                                 .getId());
  60                                 proxiedRepository.addMixin(NodeType.MIX_REFERENCEABLE);
  61                                 JcrUtils.urlToAddressProperties(proxiedRepository,
  62                                                 repository.getUrl());
  63                                 // proxiedRepository.setProperty(SLC_URL, repository.getUrl());
  64                                 proxiedRepository.setProperty(SLC_TYPE,
  65                                                 repository.getContentType());
  66                         }
  67                 }
  68         }
  69
  70         /**
  71          * Retrieve and add this file to the repository
  72          */
  73         @Override
  74         protected Node retrieve(Session session, String path) {
  75                 try {
  76                         if (session.hasPendingChanges())
  77                                 throw new SlcException("Session has pending changed");
  78                         Node node = null;
  79                         for (Node proxiedRepository : getBaseUrls(session)) {
  80                                 String baseUrl = JcrUtils
  81                                                 .urlFromAddressProperties(proxiedRepository);
  82                                 node = proxyUrl(session, baseUrl, path);
  83                                 if (node != null) {
  84                                         node.addMixin(SlcTypes.SLC_KNOWN_ORIGIN);
  85                                         Node origin = node
  86                                                         .addNode(SLC_ORIGIN, SlcTypes.SLC_PROXIED);
  87                                         origin.setProperty(SLC_PROXY, proxiedRepository);
  88                                         JcrUtils.urlToAddressProperties(origin, baseUrl + path);
  89                                         if (log.isDebugEnabled())
  90                                                 log.debug("Imported " + baseUrl + path + " to " + node);
  91                                         return node;
  92                                 }
  93                         }
  94                         if (log.isDebugEnabled())
  95                                 log.warn("No proxy found for " + path);
  96                         return null;
  97                 } catch (Exception e) {
  98                         throw new SlcException("Cannot proxy " + path, e);
  99                 }
 100         }
 101
 102         protected synchronized List<Node> getBaseUrls(Session session)
 103                         throws RepositoryException {
 104                 List<Node> baseUrls = new ArrayList<Node>();
 105                 for (NodeIterator nit = session.getNode(
 106                                 RepoConstants.PROXIED_REPOSITORIES).getNodes(); nit.hasNext();) {
 107                         Node proxiedRepository = nit.nextNode();
 108                         baseUrls.add(proxiedRepository);
 109                 }
 110                 return baseUrls;
 111         }
 112
 113         /** The JCR path where this file could be found */
 114         public String getNodePath(String path) {
 115                 if (rootNodeIsArtifactBase)
 116                         return path;
 117                 else
 118                         return RepoConstants.ARTIFACTS_BASE_PATH + path;
 119         }
 120
 121         public void setDefaultRepositories(
 122                         List<RemoteRepository> defaultRepositories) {
 123                 this.defaultRepositories = defaultRepositories;
 124         }
 125
 126 }