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.jcr.SlcTypes;
  33 import org.argeo.slc.rpmfactory.RpmProxyService;
  34 import org.argeo.slc.rpmfactory.RpmRepository;
  35
  36 /** Synchronises the node repository with remote Maven repositories */
  37 public class RpmProxyServiceImpl extends AbstractUrlProxy implements
  38                 RpmProxyService, ArgeoNames, SlcNames {
  39         private final static Log log = LogFactory.getLog(RpmProxyServiceImpl.class);
  40
  41         private Set<RpmRepository> defaultRepositories = new HashSet<RpmRepository>();
  42
  43         /**
  44          * Retrieve and add this file to the repository
  45          */
  46         @Override
  47         protected Node retrieve(Session session, String path) {
  48                 StringBuilder relativePathBuilder = new StringBuilder();
  49                 String repoId = extractRepoId(path, relativePathBuilder);
  50                 String relativePath = relativePathBuilder.toString();
  51
  52                 RpmRepository sourceRepo = null;
  53                 for (Iterator<RpmRepository> reposIt = defaultRepositories.iterator(); reposIt
  54                                 .hasNext();) {
  55                         RpmRepository rpmRepo = reposIt.next();
  56                         if (rpmRepo.getId().equals(repoId)) {
  57                                 sourceRepo = rpmRepo;
  58                                 break;
  59                         }
  60                 }
  61
  62                 if (sourceRepo == null)
  63                         throw new SlcException("No RPM repository found for " + path);
  64
  65                 try {
  66                         // if (session.hasPendingChanges())
  67                         // throw new SlcException("Session has pending changed");
  68                         String baseUrl = sourceRepo.getUrl();
  69                         String remoteUrl = baseUrl + relativePath;
  70                         Node node = proxyUrl(session, remoteUrl, path);
  71                         if (node != null) {
  72                                 node.addMixin(SlcTypes.SLC_KNOWN_ORIGIN);
  73                                 Node origin;
  74                                 if (!node.hasNode(SLC_ORIGIN))
  75                                         origin = node.addNode(SLC_ORIGIN, SlcTypes.SLC_PROXIED);
  76                                 else
  77                                         origin = node.getNode(SLC_ORIGIN);
  78                                 // origin.setProperty(SLC_PROXY, sourceRepo.getId());
  79                                 JcrUtils.urlToAddressProperties(origin, remoteUrl);
  80
  81                                 if (log.isDebugEnabled())
  82                                         log.debug("Imported " + remoteUrl + " to " + node);
  83                                 return node;
  84                         }
  85                 } catch (Exception e) {
  86                         throw new SlcException("Cannot proxy " + path, e);
  87                 }
  88                 JcrUtils.discardQuietly(session);
  89                 throw new SlcException("No proxy found for " + path);
  90         }
  91
  92         /** Returns the first token of the path */
  93         protected String extractRepoId(String path, StringBuilder relativePath) {
  94                 StringBuilder workspace = new StringBuilder();
  95                 StringBuilder buf = workspace;
  96                 for (int i = 1; i < path.length(); i++) {
  97                         char c = path.charAt(i);
  98                         if (c == '/') {
  99                                 buf = relativePath;
 100                         }
 101                         buf.append(c);
 102                 }
 103                 return workspace.toString();
 104         }
 105
 106         @Override
 107         protected Boolean shouldUpdate(Session clientSession, String nodePath) {
 108                 if (nodePath.contains("/repodata/"))
 109                         return true;
 110                 return super.shouldUpdate(clientSession, nodePath);
 111         }
 112
 113         public void setDefaultRepositories(Set<RpmRepository> defaultRepositories) {
 114                 this.defaultRepositories = defaultRepositories;
 115         }
 116 }