Class LDAPStorageService

All Implemented Interfaces:
Component, DestructableComponent, IdentifiableComponent, IdentifiedComponent, InitializableComponent, StorageCapabilities, StorageCapabilitiesEx, StorageService

public class LDAPStorageService extends AbstractStorageService implements StorageCapabilitiesEx
Implementation of StorageService that stores data in an LDAP. Does not support expiration or versioning at this time.
  • Field Details

    • log

      private final org.slf4j.Logger log
      Class logger.
    • connectionFactory

      private PooledConnectionFactory connectionFactory
      LDAP connection factory.
    • defaultAttributes

      private LdapAttribute[] defaultAttributes
      Attributes to include in merge operations.
  • Constructor Details

    • LDAPStorageService

      public LDAPStorageService(@Nonnull PooledConnectionFactory factory, LdapAttribute... attrs)
      Creates a new LDAP storage service.
      Parameters:
      factory - to retrieve LDAP connections from
      attrs - to include in all LDAP entries
  • Method Details

    • isServerSide

      public boolean isServerSide()
      Returns true iff the storage implementation manages data independent of the client.
      Specified by:
      isServerSide in interface StorageCapabilitiesEx
      Returns:
      true iff the storage implementation manages data independent of the client
    • isClustered

      public boolean isClustered()
      Returns true iff the storage implementation manages data independent of a single server node.
      Specified by:
      isClustered in interface StorageCapabilitiesEx
      Returns:
      true iff the storage implementation manages data independent of a single server node
    • doInitialize

      protected void doInitialize() throws ComponentInitializationException
      Overrides:
      doInitialize in class AbstractStorageService
      Throws:
      ComponentInitializationException
    • doDestroy

      protected void doDestroy()
      Overrides:
      doDestroy in class AbstractStorageService
    • create

      public boolean create(@Nonnull @NotEmpty String context, @Nonnull @NotEmpty String key, @Nonnull @NotEmpty String value, @Nullable @Positive Long expiration) throws IOException
      Creates a new record in the store with an expiration.
      Specified by:
      create in interface StorageService
      Parameters:
      context - a storage context label
      key - a key unique to context
      value - value to store
      expiration - expiration for record, or null
      Returns:
      true iff record was inserted, false iff a duplicate was found
      Throws:
      IOException - if fatal errors occur in the insertion process
    • read

      @Nullable public <T> StorageRecord<T> read(@Nonnull @NotEmpty String context, @Nonnull @NotEmpty String key) throws IOException
      Returns an existing record from the store, if one exists.
      Specified by:
      read in interface StorageService
      Type Parameters:
      T - type of record
      Parameters:
      context - a storage context label
      key - a key unique to context
      Returns:
      the record read back, if present, or null
      Throws:
      IOException - if errors occur in the read process
    • read

      @Nonnull public <T> Pair<Long,StorageRecord<T>> read(@Nonnull @NotEmpty String context, @Nonnull @NotEmpty String key, @Positive long version) throws IOException
      Returns an existing record from the store, along with its version.

      The first member of the pair returned will contain the version of the record in the store, or will be null if no record exists. The second member will contain the record read back. If null, the record either didn't exist (if the first member was also null) or the record was the same version as that supplied by the caller.

      Specified by:
      read in interface StorageService
      Type Parameters:
      T - type of record
      Parameters:
      context - a storage context label
      key - a key unique to context
      version - only return record if newer than supplied version
      Returns:
      a pair consisting of the version of the record read back, if any, and the record itself
      Throws:
      IOException - if errors occur in the read process
    • update

      public boolean update(@Nonnull @NotEmpty String context, @Nonnull @NotEmpty String key, @Nonnull @NotEmpty String value, @Nullable @Positive Long expiration) throws IOException
      Updates an existing record in the store.
      Specified by:
      update in interface StorageService
      Parameters:
      context - a storage context label
      key - a key unique to context
      value - updated value
      expiration - expiration for record, or null
      Returns:
      true if the update succeeded, false if the record does not exist
      Throws:
      IOException - if errors occur in the update process
    • updateWithVersion

      @Nullable public Long updateWithVersion(@Positive long version, @Nonnull @NotEmpty String context, @Nonnull @NotEmpty String key, @Nonnull @NotEmpty String value, @Nullable @Positive Long expiration) throws IOException, VersionMismatchException
      Updates an existing record in the store, if a version matches.
      Specified by:
      updateWithVersion in interface StorageService
      Parameters:
      version - only update if the current version matches this value
      context - a storage context label
      key - a key unique to context
      value - updated value
      expiration - expiration for record, or null
      Returns:
      the version of the record after update, null if no record exists
      Throws:
      IOException - if errors occur in the update process
      VersionMismatchException - if the record has already been updated to a newer version
    • updateExpiration

      public boolean updateExpiration(@Nonnull @NotEmpty String context, @Nonnull @NotEmpty String key, @Nullable @Positive Long expiration) throws IOException
      Updates expiration of an existing record in the store.
      Specified by:
      updateExpiration in interface StorageService
      Parameters:
      context - a storage context label
      key - a key unique to context
      expiration - expiration for record, or null
      Returns:
      true if the update succeeded, false if the record does not exist
      Throws:
      IOException - if errors occur in the update process
    • delete

      public boolean delete(@Nonnull @NotEmpty String context, @Nonnull @NotEmpty String key) throws IOException
      Deletes an existing record from the store.
      Specified by:
      delete in interface StorageService
      Parameters:
      context - a storage context label
      key - a key unique to context
      Returns:
      true iff the record existed and was deleted
      Throws:
      IOException - if errors occur in the deletion process
    • deleteWithVersion

      public boolean deleteWithVersion(@Positive long version, @Nonnull @NotEmpty String context, @Nonnull @NotEmpty String key) throws IOException, VersionMismatchException
      Deletes an existing record from the store if it currently has a specified version.
      Specified by:
      deleteWithVersion in interface StorageService
      Parameters:
      version - record version to delete
      context - a storage context label
      key - a key unique to context
      Returns:
      true iff the record existed and was deleted
      Throws:
      IOException - if errors occur in the deletion process
      VersionMismatchException - if the record has already been updated to a newer version
    • reap

      public void reap(@Nonnull @NotEmpty String context) throws IOException
      Manually trigger a cleanup of expired records. The method MAY return without guaranteeing that cleanup has already occurred.
      Specified by:
      reap in interface StorageService
      Parameters:
      context - a storage context label
      Throws:
      IOException - if errors occur in the cleanup process
    • updateContextExpiration

      public void updateContextExpiration(@Nonnull @NotEmpty String context, @Nullable @Positive Long expiration) throws IOException
      Updates the expiration time of all records in the context.
      Specified by:
      updateContextExpiration in interface StorageService
      Parameters:
      context - a storage context label
      expiration - a new expiration timestamp, or null
      Throws:
      IOException - if errors occur in the cleanup process
    • deleteContext

      public void deleteContext(@Nonnull @NotEmpty String context) throws IOException
      Forcibly removes all records in a given context along with any associated resources devoted to maintaining the context.
      Specified by:
      deleteContext in interface StorageService
      Parameters:
      context - a storage context label
      Throws:
      IOException - if errors occur in the cleanup process
    • merge

      @Nonnull private Response<Void> merge(@Nonnull LdapEntry entry) throws LdapException
      Executes a MergeOperation with the supplied entry.
      Parameters:
      entry - to merge
      Returns:
      response for the merge operation
      Throws:
      LdapException - if the operation fails
    • search

      @Nonnull private Response<SearchResult> search(@Nonnull String dn, String... attrs) throws LdapException
      Executes a object level SearchOperation on the supplied DN, returning the supplied attributes.
      Parameters:
      dn - to search on
      attrs - to return
      Returns:
      response for the search operation
      Throws:
      LdapException - if the operation fails
    • deleteAttribute

      @Nonnull private Response<Void> deleteAttribute(@Nonnull String dn, @Nonnull String attrName) throws LdapException
      Executes a ModifyOperation on the supplied DN, removing the supplied attribute.
      Parameters:
      dn - to modify
      attrName - to remove
      Returns:
      response for the modify operation
      Throws:
      LdapException - if the operation fails
    • delete

      @Nonnull private Response<Void> delete(@Nonnull String dn) throws LdapException
      Executes a DeleteOperation on the supplied DN.
      Parameters:
      dn - to delete
      Returns:
      response for the delete operation
      Throws:
      LdapException - if the operation fails