runtime/org.argeo.slc.rpmfactory/src/main/java/org/argeo/slc/rpmfactory/core/RpmProxyServiceImpl.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.rpmfactory.core;
  17
  18 import java.util.HashSet;
  19 import java.util.Iterator;
  20 import java.util.Set;
  21
  22 import javax.jcr.Node;
  23 import javax.jcr.Session;
  24
  25 import org.apache.commons.logging.Log;
  26 import org.apache.commons.logging.LogFactory;
  27 import org.argeo.jcr.ArgeoNames;
  28 import org.argeo.jcr.JcrUtils;
  29 import org.argeo.jcr.proxy.AbstractUrlProxy;
  30 import org.argeo.slc.SlcException;
  31 import org.argeo.slc.jcr.SlcNames;
  32 import org.argeo.slc.rpmfactory.RpmProxyService;
  33 import org.argeo.slc.rpmfactory.RpmRepository;
  34
  35 /** Synchronises the node repository with remote Maven repositories */
  36 public class RpmProxyServiceImpl extends AbstractUrlProxy implements
  37                 RpmProxyService, ArgeoNames, SlcNames {
  38         private final static Log log = LogFactory.getLog(RpmProxyServiceImpl.class);
  39
  40         private Set<RpmRepository> defaultRepositories = new HashSet<RpmRepository>();
  41
  42         /**
  43          * Retrieve and add this file to the repository
  44          */
  45         @Override
  46         protected Node retrieve(Session session, String path) {
  47                 StringBuilder relativePathBuilder = new StringBuilder();
  48                 String repoId = extractRepoId(path, relativePathBuilder);
  49                 String relativePath = relativePathBuilder.toString();
  50
  51                 RpmRepository sourceRepo = null;
  52                 for (Iterator<RpmRepository> reposIt = defaultRepositories.iterator(); reposIt
  53                                 .hasNext();) {
  54                         RpmRepository rpmRepo = reposIt.next();
  55                         if (rpmRepo.getId().equals(repoId)) {
  56                                 sourceRepo = rpmRepo;
  57                                 break;
  58                         }
  59                 }
  60
  61                 if (sourceRepo == null)
  62                         throw new SlcException("No RPM repository found for " + path);
  63
  64                 try {
  65                         // if (session.hasPendingChanges())
  66                         // throw new SlcException("Session has pending changed");
  67                         String baseUrl = sourceRepo.getUrl();
  68                         String remoteUrl = baseUrl + relativePath;
  69                         Node node = proxyUrl(session, remoteUrl, path);
  70                         if (node != null) {
  71                                 // node.addMixin(SlcTypes.SLC_KNOWN_ORIGIN);
  72                                 // Node origin;
  73                                 // if (!node.hasNode(SLC_ORIGIN))
  74                                 // origin = node.addNode(SLC_ORIGIN, SlcTypes.SLC_PROXIED);
  75                                 // else
  76                                 // origin = node.getNode(SLC_ORIGIN);
  77                                 // // origin.setProperty(SLC_PROXY, sourceRepo.getId());
  78                                 // JcrUtils.urlToAddressProperties(origin, remoteUrl);
  79
  80                                 if (log.isDebugEnabled())
  81                                         log.debug("Imported " + remoteUrl + " to " + node);
  82                                 return node;
  83                         }
  84                 } catch (Exception e) {
  85                         throw new SlcException("Cannot proxy " + path, e);
  86                 }
  87                 JcrUtils.discardQuietly(session);
  88                 throw new SlcException("No proxy found for " + path);
  89         }
  90
  91         /** Returns the first token of the path */
  92         protected String extractRepoId(String path, StringBuilder relativePath) {
  93                 StringBuilder workspace = new StringBuilder();
  94                 StringBuilder buf = workspace;
  95                 for (int i = 1; i < path.length(); i++) {
  96                         char c = path.charAt(i);
  97                         if (c == '/') {
  98                                 buf = relativePath;
  99                         }
 100                         buf.append(c);
 101                 }
 102                 return workspace.toString();
 103         }
 104
 105         @Override
 106         protected Boolean shouldUpdate(Session clientSession, String nodePath) {
 107                 if (nodePath.contains("/repodata/"))
 108                         return true;
 109                 return super.shouldUpdate(clientSession, nodePath);
 110         }
 111
 112         public void setDefaultRepositories(Set<RpmRepository> defaultRepositories) {
 113                 this.defaultRepositories = defaultRepositories;
 114         }
 115 }