Examples of org.sonatype.nexus.proxy.item.RepositoryItemUidLock.lock()

Class org.sonatype.nexus.proxy.item.RepositoryItemUidLock

Examples of org.sonatype.nexus.proxy.item.RepositoryItemUidLock.lock()

org.sonatype.nexus.proxy.item.RepositoryItemUidLock.lock()
Locks this UID for a given action. Will perform lock upgrade is needed (read -> write). Lock upgrade (ie. create action locking happens after read action already locked) happens, but does not happen atomically! Lock upgrade is actually release all (if any) read lock and then acquire write lock. Once you have exclusive lock, then only you can be sure for unique access.

  public boolean deleteAttributes(final RepositoryItemUid uid)
      throws IOException
  {
    final RepositoryItemUidLock uidLock = uid.getLock();


    uidLock.lock(Action.delete);


    try {
      if (log.isDebugEnabled()) {
        log.debug("Deleting attributes on UID=" + uid.toString());
      }

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  public Attributes getAttributes(final RepositoryItemUid uid)
      throws IOException
  {
    final RepositoryItemUidLock uidLock = uid.getLock();


    uidLock.lock(Action.read);


    try {
      if (log.isDebugEnabled()) {
        log.debug("Loading attributes on UID=" + uid.toString());
      }

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  public void putAttributes(final RepositoryItemUid uid, Attributes attributes)
      throws IOException
  {
    final RepositoryItemUidLock uidLock = uid.getLock();


    uidLock.lock(Action.create);


    try {
      if (log.isDebugEnabled()) {
        log.debug("Storing attributes on UID=" + uid.toString());
      }

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      // Locking is needed, AbstractRepository got shared lock only for destination


      // NEXUS-4550: FSPeer is the one that handles the rename in case of FS LS,
      // so we need here to claim exclusive lock on actual UID to perform the rename
      final RepositoryItemUidLock uidLock = item.getRepositoryItemUid().getLock();
      uidLock.lock(Action.create);


      try {
        handleRenameOperation(hiddenTarget, target);
        target.setLastModified(item.getModified());
      }

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        if (member.getLocalStatus().shouldServiceRequest()) {
          final FilePrefixSource memberEntrySource =
              getPrefixSourceFor(member.adaptToFacet(MavenRepository.class));
          // lock to prevent file being deleted between exists check and reading it up
          final RepositoryItemUidLock lock = memberEntrySource.getRepositoryItemUid().getLock();
          lock.lock(Action.read);
          try {
            if (!memberEntrySource.supported()) {
              allMembersHavePublished = false;
              break;
            }

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      // although not 100% bulletproof, this logic reduces the risk of this happening
      return false;
    }
    final FilePrefixSource prefixSource = getPrefixSourceFor(mavenHostedRepository);
    final RepositoryItemUidLock lock = prefixSource.getRepositoryItemUid().getLock();
    lock.lock(Action.read);
    try {
      if (!prefixSource.supported()) {
        return false;
      }
      final String entry;

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      final WritablePrefixSourceModifier wesm =
          new WritablePrefixSourceModifier(prefixSource, config.getLocalScrapeDepth());
      wesm.offerEntry(entry);
      if (wesm.hasChanges()) {
        boolean changed = false;
        lock.lock(Action.update);
        try {
          wesm.reset();
          wesm.offerEntry(entry);
          changed = wesm.apply();
          if (changed) {

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      // although not 100% bulletproof, this logic reduces the risk of this happening
      return false;
    }
    final FilePrefixSource prefixSource = getPrefixSourceFor(mavenHostedRepository);
    final RepositoryItemUidLock lock = prefixSource.getRepositoryItemUid().getLock();
    lock.lock(Action.read);
    try {
      if (!prefixSource.supported()) {
        return false;
      }
      final WritablePrefixSourceModifier wesm =

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      final WritablePrefixSourceModifier wesm =
          new WritablePrefixSourceModifier(prefixSource, config.getLocalScrapeDepth());
      wesm.revokeEntry(item.getPath());
      if (wesm.hasChanges()) {
        boolean changed = false;
        lock.lock(Action.update);
        try {
          wesm.reset();
          wesm.revokeEntry(item.getPath());
          changed = wesm.apply();
          if (changed) {

View Full Code Here


    final RepositoryItemUid uid = createUid(request.getRequestPath());


    final RepositoryItemUidLock uidLock = uid.getLock();


    uidLock.lock(Action.read);


    try {
      StorageItem item = doRetrieveItem(request);


      // file with generated content?

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