src/org/argeo/cms/acr/SingleUserContentRepository.java

   1 package org.argeo.cms.acr;
   2
   3 import java.nio.file.Path;
   4 import java.nio.file.Paths;
   5 import java.util.Locale;
   6 import java.util.Objects;
   7
   8 import javax.security.auth.Subject;
   9 import javax.security.auth.x500.X500Principal;
  10
  11 import org.argeo.api.acr.ContentSession;
  12 import org.argeo.api.acr.spi.ProvidedRepository;
  13 import org.argeo.cms.acr.fs.FsContentProvider;
  14 import org.argeo.util.naming.LdapAttrs;
  15
  16 /**
  17  * A standalone {@link ProvidedRepository} with a single {@link Subject} (which
  18  * also provides the system session).
  19  */
  20 public class SingleUserContentRepository extends AbstractContentRepository {
  21         private final Subject subject;
  22         private final Locale locale;
  23
  24         // the single session
  25         private CmsContentSession contentSession;
  26
  27         public SingleUserContentRepository(Subject subject) {
  28                 this(subject, Locale.getDefault());
  29
  30                 initRootContentProvider(null);
  31         }
  32
  33         public SingleUserContentRepository(Subject subject, Locale locale) {
  34                 Objects.requireNonNull(subject);
  35                 Objects.requireNonNull(locale);
  36
  37                 this.subject = subject;
  38                 this.locale = locale;
  39         }
  40
  41         @Override
  42         public void start() {
  43                 Objects.requireNonNull(subject);
  44                 Objects.requireNonNull(locale);
  45
  46                 super.start();
  47                 if (contentSession != null)
  48                         throw new IllegalStateException("Repository is already started, stop it first.");
  49                 contentSession = new CmsContentSession(this, subject, locale);
  50         }
  51
  52         @Override
  53         public void stop() {
  54                 if (contentSession != null)
  55                         contentSession.close();
  56                 contentSession = null;
  57                 super.stop();
  58         }
  59
  60         @Override
  61         public ContentSession get(Locale locale) {
  62                 if (!this.locale.equals(locale))
  63                         throw new UnsupportedOperationException("This repository does not support multi-locale sessions");
  64                 return contentSession;
  65         }
  66
  67         @Override
  68         public ContentSession get() {
  69                 return contentSession;
  70         }
  71
  72         @Override
  73         protected CmsContentSession newSystemSession() {
  74                 return new CmsContentSession(this, subject, Locale.getDefault());
  75         }
  76
  77         public static void main(String... args) {
  78                 Path homePath = Paths.get(System.getProperty("user.home"));
  79                 String username = System.getProperty("user.name");
  80                 X500Principal principal = new X500Principal(LdapAttrs.uid + "=" + username + ",dc=localhost");
  81                 Subject subject = new Subject();
  82                 subject.getPrincipals().add(principal);
  83
  84                 SingleUserContentRepository contentRepository = new SingleUserContentRepository(subject);
  85                 FsContentProvider homeContentProvider = new FsContentProvider("/home", homePath);
  86                 contentRepository.addProvider(homeContentProvider);
  87                 Runtime.getRuntime().addShutdownHook(new Thread(() -> contentRepository.stop(), "Shutdown content repository"));
  88                 contentRepository.start();
  89
  90                 ContentSession contentSession = contentRepository.get();
  91                 ContentUtils.traverse(contentSession.get("/"), (c, depth) -> ContentUtils.print(c, System.out, depth, false),
  92                                 2);
  93
  94         }
  95 }