runtime/org.argeo.slc.repo/src/main/java/org/argeo/slc/repo/osgi/OsgiFactoryImpl.java

   1 package org.argeo.slc.repo.osgi;
   2
   3 import java.io.FileNotFoundException;
   4 import java.io.IOException;
   5 import java.io.InputStream;
   6 import java.net.MalformedURLException;
   7 import java.net.URL;
   8 import java.util.ArrayList;
   9 import java.util.HashMap;
  10 import java.util.List;
  11 import java.util.Map;
  12
  13 import javax.jcr.Node;
  14 import javax.jcr.Repository;
  15 import javax.jcr.RepositoryException;
  16 import javax.jcr.Session;
  17
  18 import org.apache.commons.logging.Log;
  19 import org.apache.commons.logging.LogFactory;
  20 import org.argeo.jcr.JcrUtils;
  21 import org.argeo.slc.SlcConstants;
  22 import org.argeo.slc.SlcException;
  23 import org.argeo.slc.jcr.SlcNames;
  24 import org.argeo.slc.jcr.SlcTypes;
  25 import org.argeo.slc.repo.NodeIndexer;
  26 import org.argeo.slc.repo.OsgiFactory;
  27 import org.argeo.slc.repo.maven.MavenConventionsUtils;
  28 import org.sonatype.aether.artifact.Artifact;
  29 import org.sonatype.aether.util.artifact.DefaultArtifact;
  30
  31 /** Default implementation of {@link OsgiFactory}. */
  32 public class OsgiFactoryImpl implements OsgiFactory, SlcNames {
  33         private final static Log log = LogFactory.getLog(OsgiFactoryImpl.class);
  34
  35         private String workspace;
  36         private Repository distRepository;
  37         private Repository javaRepository;
  38
  39         private List<NodeIndexer> nodeIndexers = new ArrayList<NodeIndexer>();
  40
  41         /** key is URI prefix, value list of base URLs */
  42         private Map<String, List<String>> mirrors = new HashMap<String, List<String>>();
  43
  44         private List<String> mavenRepositories = new ArrayList<String>();
  45         private String mavenProxyBase = "/mavenProxy";
  46
  47         public void init() {
  48                 if (workspace == null)
  49                         throw new SlcException("A workspace must be specified");
  50
  51                 // default Maven repo
  52                 if (mavenRepositories.size() == 0) {
  53                         // mavenRepositories
  54                         // .add("http://search.maven.org/remotecontent?filepath=");
  55                         mavenRepositories.add("http://repo1.maven.org/maven2");
  56                 }
  57
  58                 Session javaSession = null;
  59                 Session distSession = null;
  60                 try {
  61                         javaSession = JcrUtils.loginOrCreateWorkspace(javaRepository,
  62                                         workspace);
  63                         distSession = JcrUtils.loginOrCreateWorkspace(distRepository,
  64                                         workspace);
  65
  66                         // Privileges
  67                         JcrUtils.addPrivilege(javaSession, "/", SlcConstants.ROLE_SLC,
  68                                         "jcr:all");
  69                         JcrUtils.addPrivilege(distSession, "/", SlcConstants.ROLE_SLC,
  70                                         "jcr:all");
  71                 } catch (RepositoryException e) {
  72                         throw new SlcException("Cannot initialize OSGi Factory "
  73                                         + workspace, e);
  74                 } finally {
  75                         JcrUtils.logoutQuietly(javaSession);
  76                         JcrUtils.logoutQuietly(distSession);
  77                 }
  78         }
  79
  80         public void destroy() {
  81
  82         }
  83
  84         public Session openJavaSession() throws RepositoryException {
  85                 return javaRepository.login(workspace);
  86         }
  87
  88         public Session openDistSession() throws RepositoryException {
  89                 return distRepository.login(workspace);
  90         }
  91
  92         public void indexNode(Node node) {
  93                 for (NodeIndexer nodeIndexer : nodeIndexers) {
  94                         nodeIndexer.index(node);
  95                 }
  96         }
  97
  98         public Node getMaven(Session distSession, String coords)
  99                         throws RepositoryException {
 100                 Artifact artifact = new DefaultArtifact(coords);
 101                 String path = MavenConventionsUtils.artifactPath(mavenProxyBase,
 102                                 artifact);
 103
 104                 // exists
 105                 if (distSession.itemExists(path))
 106                         return distSession.getNode(path);
 107
 108                 for (String mavenRepo : mavenRepositories) {
 109                         String url = mavenRepo
 110                                         + MavenConventionsUtils.artifactPath("/", artifact);
 111                         try {
 112                                 Node node = loadUrlToPath(url, distSession, path);
 113                                 if (node != null) {
 114                                         // checksums
 115                                         try {
 116                                                 loadUrlToPath(url + ".md5", distSession, path + ".md5");
 117                                         } catch (FileNotFoundException e) {
 118                                                 // silent
 119                                         }
 120                                         try {
 121                                                 loadUrlToPath(url + ".sha1", distSession, path
 122                                                                 + ".sha1");
 123                                         } catch (FileNotFoundException e) {
 124                                                 // silent
 125                                         }
 126                                         return node;
 127                                 }
 128                         } catch (FileNotFoundException e) {
 129                                 if (log.isDebugEnabled())
 130                                         log.debug("Maven " + coords
 131                                                         + " could not be downloaded from " + url);
 132                         }
 133                 }
 134                 throw new SlcException("Could not download Maven " + coords);
 135         }
 136
 137         public Node getDist(Session distSession, String uri)
 138                         throws RepositoryException {
 139                 String distPath = '/' + JcrUtils.urlAsPath(uri);
 140
 141                 // already retrieved
 142                 if (distSession.itemExists(distPath))
 143                         return distSession.getNode(distPath);
 144
 145                 // find mirror
 146                 List<String> urlBases = null;
 147                 String uriPrefix = null;
 148                 uriPrefixes: for (String uriPref : mirrors.keySet()) {
 149                         if (uri.startsWith(uriPref)) {
 150                                 if (mirrors.get(uriPref).size() > 0) {
 151                                         urlBases = mirrors.get(uriPref);
 152                                         uriPrefix = uriPref;
 153                                         break uriPrefixes;
 154                                 }
 155                         }
 156                 }
 157                 if (urlBases == null)
 158                         try {
 159                                 return loadUrlToPath(uri, distSession, distPath);
 160                         } catch (FileNotFoundException e) {
 161                                 throw new SlcException("Cannot download " + uri, e);
 162                         }
 163
 164                 // try to download
 165                 for (String urlBase : urlBases) {
 166                         String relativePath = uri.substring(uriPrefix.length());
 167                         String url = urlBase + relativePath;
 168                         try {
 169                                 return loadUrlToPath(url, distSession, distPath);
 170                         } catch (FileNotFoundException e) {
 171                                 if (log.isDebugEnabled())
 172                                         log.debug("Cannot download" + url
 173                                                         + ", trying another mirror");
 174                         }
 175                 }
 176
 177                 throw new SlcException("Could not download " + uri);
 178         }
 179
 180         /** Actually downloads a file to an internal location */
 181         protected Node loadUrlToPath(String url, Session distSession, String path)
 182                         throws RepositoryException, FileNotFoundException {
 183                 if (log.isDebugEnabled())
 184                         log.debug("Downloading " + url + "...");
 185
 186                 InputStream in = null;
 187                 Node folderNode = JcrUtils.mkfolders(distSession,
 188                                 JcrUtils.parentPath(path));
 189                 try {
 190                         URL u = new URL(url);
 191                         in = u.openStream();
 192                         Node fileNode = JcrUtils.copyStreamAsFile(folderNode,
 193                                         JcrUtils.nodeNameFromPath(path), in);
 194                         fileNode.addMixin(SlcTypes.SLC_KNOWN_ORIGIN);
 195                         Node origin = fileNode.addNode(SLC_ORIGIN, SlcTypes.SLC_PROXIED);
 196                         JcrUtils.urlToAddressProperties(origin, url);
 197                         distSession.save();
 198                         return fileNode;
 199                 } catch (MalformedURLException e) {
 200                         throw new SlcException("URL " + url + " not valid.", e);
 201                 } catch (FileNotFoundException e) {
 202                         throw e;
 203                 } catch (IOException e) {
 204                         throw new SlcException("Cannot load " + url + " to " + path, e);
 205                 }
 206
 207         }
 208
 209         public void setWorkspace(String workspace) {
 210                 this.workspace = workspace;
 211         }
 212
 213         public void setDistRepository(Repository distRepository) {
 214                 this.distRepository = distRepository;
 215         }
 216
 217         public void setJavaRepository(Repository javaRepository) {
 218                 this.javaRepository = javaRepository;
 219         }
 220
 221         public void setNodeIndexers(List<NodeIndexer> nodeIndexers) {
 222                 this.nodeIndexers = nodeIndexers;
 223         }
 224
 225         public void setMirrors(Map<String, List<String>> mirrors) {
 226                 this.mirrors = mirrors;
 227         }
 228
 229 }