Examples of org.sonatype.nexus.proxy.item.RepositoryItemUid

org.sonatype.nexus.proxy.item.RepositoryItemUid
Repository item UID represents a key that uniquely identifies a resource in a repository. Every Item originating from Nexus, that is not "virtual" is backed by UID with reference to it's originating Repository and path within that repository. UIDs are immutable.
Note about "paths" used by this class. UID Paths are not FS file paths! They are always same on every platform, they are more "URL-like" hierarchical paths. Separator is always same (see {@link RepositoryItemUid#PATH_SEPARATOR}) and UIDs does not support notion of "relative paths". They always start with path separator and have 0 or more path elements separated by path separator. They might or might not end with a path separator, telling do you deal with a "collection" (aka "directory" or "folder") or not (represented by {@link StorageCollectionItem}). Still, actual checking for file or collection is NOT recommended using checks for UID ending with a path separator, you'd do the by retrieving item and something like {@code item intanceof StorageCollectionItem}!
Few examples of UID paths:
```
 / /foo /foo/bar/folder/ 
```
Constructing UID instances that does not follow these requirements might lead to unexpected results! This might change in future, where the path will be validated and sanitized (and by throwing exceptions show you the location of bug in the code that tried to use invalid path for UID constructor). For path utilities, see {@link PathUtils}. @author cstamas

  private void mirrorUpdateSite(final boolean force)
      throws StorageException, IllegalOperationException, UnsupportedStorageOperationException
  {
    UpdateSite site;
    try {
      final RepositoryItemUid siteUID = createUid(P2Constants.SITE_XML);
      String oldSha1 = null;


      final ResourceStoreRequest request = new ResourceStoreRequest(siteUID.getPath());


      try {
        oldSha1 =
            getLocalStorage().retrieveItem(this, request).getRepositoryItemAttributes().get(
                StorageFileItem.DIGEST_SHA1_KEY);

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        mirrored.remove(remoteRequest.getRequestPath());
        mirrored.add(localRequest.getRequestPath());
      }


      // update the uid
      final RepositoryItemUid newUid = createUid(localRequest.getRequestPath());
      if (!newUid.equals(item.getRepositoryItemUid())) {
        item.setRepositoryItemUid(newUid);


        // update the resource store request
        item.setResourceStoreRequest(localRequest);

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  @Override
  public void removeConfiguration(final P2RepositoryAggregatorConfiguration configuration) {
    try {
      final Repository repository = repositories.getRepository(configuration.repositoryId());
      final RepositoryItemUid p2RepoUid = repository.createUid(P2_REPOSITORY_ROOT_PATH);
      try {
        p2RepoUid.getLock().lock(Action.create);
        final ResourceStoreRequest request = new ResourceStoreRequest(P2_REPOSITORY_ROOT_PATH);
        repository.deleteItem(request);
      }
      finally {
        p2RepoUid.getLock().unlock();
      }
    }
    catch (final Exception e) {
      logger.warn(String.format("Could not delete P2 repository [%s:%s] due to [%s]",
          configuration.repositoryId(), P2_REPOSITORY_ROOT_PATH, e.getMessage()), e);

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        mirrored.remove(remoteStoreRequest.getRequestPath());
        mirrored.add(localStoreRequest.getRequestPath());
      }


      // update the uid
      final RepositoryItemUid newUid = createUid(localStoreRequest.getRequestPath());
      if (!newUid.equals(item.getRepositoryItemUid())) {
        item.setRepositoryItemUid(newUid);


        // update the resource store request
        item.setResourceStoreRequest(localStoreRequest);

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    if (P2Constants.SITE_XML.equals(request.getRequestPath())) {
      return;
    }


    try {
      final RepositoryItemUid siteUID = createUid(P2Constants.SITE_XML);
      final ResourceStoreRequest siteRequest = new ResourceStoreRequest(siteUID.getPath());
      StorageFileItem siteItem;
      try {
        siteItem = (StorageFileItem) getLocalStorage().retrieveItem(this, siteRequest);
      }
      catch (final ItemNotFoundException e) {

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      return;
    }
    logger.debug("Updating P2 repository artifacts (update) for [{}:{}]", item.getRepositoryId(), item.getPath());
    try {
      final Repository repository = repositories.getRepository(configuration.repositoryId());
      final RepositoryItemUid p2RepoUid = repository.createUid(P2_REPOSITORY_ROOT_PATH);
      File destinationP2Repository = null;
      try {
        p2RepoUid.getLock().lock(Action.update);


        // copy repository artifacts to a temporary location
        destinationP2Repository = createTemporaryP2Repository();
        final File artifacts = getP2Artifacts(configuration, repository);
        final File tempArtifacts = new File(destinationP2Repository, artifacts.getName());
        FileUtils.copyFile(artifacts, tempArtifacts);


        updateP2Artifacts(repository, retrieveFile(repository, item.getPath()), destinationP2Repository);


        // copy repository artifacts back to exposed location
        FileUtils.copyFile(tempArtifacts, artifacts);
      }
      finally {
        p2RepoUid.getLock().unlock();
        FileUtils.deleteDirectory(destinationP2Repository);
      }
    }
    catch (final Exception e) {
      logger.warn(

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      return;
    }
    logger.debug("Updating P2 repository artifacts (remove) for [{}:{}]", item.getRepositoryId(), item.getPath());
    try {
      final Repository repository = repositories.getRepository(configuration.repositoryId());
      final RepositoryItemUid p2RepoUid = repository.createUid(P2_REPOSITORY_ROOT_PATH);
      File sourceP2Repository = null;
      File destinationP2Repository = null;
      try {
        p2RepoUid.getLock().lock(Action.update);


        // copy repository artifacts to a temporary location
        destinationP2Repository = createTemporaryP2Repository();
        final File artifacts = getP2Artifacts(configuration, repository);
        final File tempArtifacts = new File(destinationP2Repository, artifacts.getName());
        FileUtils.copyFile(artifacts, tempArtifacts);


        // copy item artifacts to a temp location
        sourceP2Repository = createTemporaryP2Repository();
        FileUtils.copyFile(retrieveFile(repository, item.getPath()), new File(sourceP2Repository,
            "artifacts.xml"));


        artifactRepository.remove(sourceP2Repository.toURI(), destinationP2Repository.toURI());


        // copy repository artifacts back to exposed location
        FileUtils.copyFile(tempArtifacts, artifacts);
      }
      finally {
        p2RepoUid.getLock().unlock();
        FileUtils.deleteDirectory(sourceP2Repository);
        FileUtils.deleteDirectory(destinationP2Repository);
      }
    }
    catch (final Exception e) {

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      return;
    }
    logger.debug("Updating P2 repository metadata (update) for [{}:{}]", item.getRepositoryId(), item.getPath());
    try {
      final Repository repository = repositories.getRepository(configuration.repositoryId());
      final RepositoryItemUid p2RepoUid = repository.createUid(P2_REPOSITORY_ROOT_PATH);
      File destinationP2Repository = null;
      try {
        p2RepoUid.getLock().lock(Action.update);


        // copy repository content to a temporary location
        destinationP2Repository = createTemporaryP2Repository();
        final File content = getP2Content(configuration, repository);
        final File tempContent = new File(destinationP2Repository, content.getName());
        FileUtils.copyFile(content, tempContent);


        updateP2Metadata(repository, retrieveFile(repository, item.getPath()), destinationP2Repository);


        // copy repository content back to exposed location
        FileUtils.copyFile(tempContent, content);
      }
      finally {
        p2RepoUid.getLock().unlock();
        FileUtils.deleteDirectory(destinationP2Repository);
      }
    }
    catch (final Exception e) {
      logger.warn(

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      return;
    }
    logger.debug("Updating P2 repository metadata (remove) for [{}:{}]", item.getRepositoryId(), item.getPath());
    try {
      final Repository repository = repositories.getRepository(configuration.repositoryId());
      final RepositoryItemUid p2RepoUid = repository.createUid(P2_REPOSITORY_ROOT_PATH);
      File sourceP2Repository = null;
      File destinationP2Repository = null;
      try {
        p2RepoUid.getLock().lock(Action.update);


        // copy repository content to a temporary location
        destinationP2Repository = createTemporaryP2Repository();
        final File content = getP2Content(configuration, repository);
        final File tempContent = new File(destinationP2Repository, content.getName());
        FileUtils.copyFile(content, tempContent);


        // copy item content to a temp location
        sourceP2Repository = createTemporaryP2Repository();
        FileUtils.copyFile(retrieveFile(repository, item.getPath()), new File(sourceP2Repository,
            "content.xml"));


        metadataRepository.remove(sourceP2Repository.toURI(), destinationP2Repository.toURI());


        // copy repository content back to exposed location
        FileUtils.copyFile(tempContent, content);
      }
      finally {
        p2RepoUid.getLock().unlock();
        FileUtils.deleteDirectory(sourceP2Repository);
        FileUtils.deleteDirectory(destinationP2Repository);
      }
    }
    catch (final Exception e) {

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    }


    try {
      final Repository repository = repositories.getRepository(repositoryId);
      final File scanPath = localStorageOfRepositoryAsFile(repository);
      final RepositoryItemUid p2RepoUid = repository.createUid(P2_REPOSITORY_ROOT_PATH);
      final File destinationP2Repository = createTemporaryP2Repository();
      try {
        p2RepoUid.getLock().lock(Action.update);


        // copy repository artifacts to a temporary location
        final File artifacts = getP2Artifacts(configuration, repository);
        final File tempArtifacts = new File(destinationP2Repository, artifacts.getName());
        FileUtils.copyFile(artifacts, tempArtifacts);


        // copy repository content to a temporary location
        final File content = getP2Content(configuration, repository);
        final File tempContent = new File(destinationP2Repository, content.getName());
        FileUtils.copyFile(content, tempContent);


        new SerialScanner().scan(scanPath, new ListenerSupport()
        {


          @Override
          public void onFile(final File file) {
            try {
              if (!isHidden(getRelativePath(scanPath, file))) {
                if (isP2ArtifactsXML(file.getPath())) {
                  updateP2Artifacts(repository, file, destinationP2Repository);
                }
                else if (isP2ContentXML(file.getPath())) {
                  updateP2Metadata(repository, file, destinationP2Repository);
                }
              }
            }
            catch (final Exception e) {
              throw new RuntimeException(e);
            }
          }


        });


        // copy artifacts back to exposed location
        FileUtils.copyFile(tempArtifacts, artifacts);
        // copy content back to exposed location
        FileUtils.copyFile(tempContent, content);
      }
      finally {
        p2RepoUid.getLock().unlock();


        FileUtils.deleteDirectory(destinationP2Repository);
      }
    }
    catch (final Exception e) {

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