Package com.aquima.interactions.portal.content

Class FileSystemContentManager

  • All Implemented Interfaces:
    IContentManager
    public class FileSystemContentManager
extends Object
implements IContentManager
    A manager of content on a file system. Path / File name generation is delegated to an instance of IFileSystemNamingStrategy. This manager creates two files for snippet of content that is managed:
    • a file that contains the content;
    • another file that contains the meta-data related to the content. meta-data file also contains the roles acquired by the content.
    The path identifier for both of these files (as generated by the amingStrategy) is equal, but applied to a different root/base path: Content is stored in files that are relative to the path segment as identified by , where meta-data is stored relative to "METADATA". This implementation does not explicitly store the file size in the metadata. Instead, whenever a metadata-representation is constructed, the instance is complemented with file size information that is obtained from the filesystem directly.
    Since:
    9.3
    Author:
    G. der Kinderen

    • Field Detail

      • CONTENT_PATHSEGMENT

        public static final String CONTENT_PATHSEGMENT
        The identifier of the path segment that is prepended to all files that contain the (raw) content.
        See Also:
        Constant Field Values

      • METADATA_PATHSEGMENT

        public static final String METADATA_PATHSEGMENT
        The identifier of the path segment that is prepended to all files that contain metadata.
        See Also:
        Constant Field Values

    • Constructor Detail

      • FileSystemContentManager

        public FileSystemContentManager​(FileSystemConnection connection)
        Constructs a new manager, using a default naming strategy.
        Parameters:
        connection - The connection providing access to the content store (cannot be null).
        Since:
        9.3

      • FileSystemContentManager

        public FileSystemContentManager​(FileSystemConnection connection,
                                IFileSystemNamingStrategy namingStrategy)
        Constructs a new manager.
        Parameters:
        namingStrategy - a path/name converter (cannot be null).
        connection - The connection providing access to the content store (cannot be null).
        Since:
        9.3

    • Method Detail

      • create

        public GUID create​(InputStream stream,
                   String name,
                   String contentType,
                   Long caseId,
                   CustomContentProperties properties,
                   IUserData user,
                   String[] roles)
            throws CreateContentException
        Description copied from interface: IContentManager
        Add new content to the repository.
        Specified by:
        create in interface IContentManager
        Parameters:
        stream - The stream containing the data, may not be null.
        name - A name for the content, may not be null.
        contentType - The content type of the data, may be null if unknown.
        caseId - The id of the case where this content is part of, may be null.
        properties - Custom properties that should be stored with the content, may not be null.
        user - The user who is considered the creator of the content, may not be null.
        roles - The list of authorized roles associated to this content, may not be null.
        Returns:
        Returns a GUID that uniquely identifies the content, never null.
        Throws:
        CreateContentException - If creation failed for any reason.

      • update

        public void update​(GUID id,
                   String[] newRoles,
                   IUserData user)
            throws ContentAuthorizationException
        Description copied from interface: IContentManager
        Update the existing content with new roles, but keep the existing data and metadata.
        Specified by:
        update in interface IContentManager
        Parameters:
        id - The id of the content which should be updated, may not be null.
        newRoles - The list of new roles. May not be null, may be empty.
        user - The user that is updating the content, may not be null.
        Throws:
        ContentAuthorizationException - If user is not authorized to access the content.

      • delete

        public void delete​(GUID id,
                   IUserData user,
                   boolean checkRoles)
            throws DeleteContentException
        Description copied from interface: IContentManager
        Delete content from the repository
        Specified by:
        delete in interface IContentManager
        Parameters:
        id - The id of the content which should be deleted, may not be null.
        user - The user that is deleting the content, may not be null.
        checkRoles - Flag indicating if the roles check should be done or not.
        Throws:
        DeleteContentException - If the content can not be deleted for any reason.

      • isAuthorized

        public boolean isAuthorized​(GUID id,
                            IUserData user)
        Description copied from interface: IContentManager
        This method checks if the user has roles on this content with the given id.
        Specified by:
        isAuthorized in interface IContentManager
        Parameters:
        id - The id of the content, never null.
        user - The details of the user that wants to access the content, never null.
        Returns:
        A flag indicating if the user has roles on the document or not.

      • readBytes

        public int readBytes​(GUID id,
                     long position,
                     byte[] buffer,
                     int offset,
                     int length,
                     IUserData user)
              throws ReadContentException
        Description copied from interface: IContentManager
        Reads up to length bytes of data from content into a byte array. The method blocks until some input is available. Although publicly available, this method primarily facilitates the implementation of ContentInputStream. For reading content from an IContentManager, usage of ContentInputStream is recommended over direct usage of this method. If the user is not authorized it will throw an exception.
        Specified by:
        readBytes in interface IContentManager
        Parameters:
        id - The id of the content that should be read, may not be null.
        position - the start offset in the source content.
        buffer - The buffer into which the data is read, (may not be null.
        offset - The start offset in the destination array buffer.
        length - The maximum number of bytes read.
        user - The user that is reading the content, may not be null.
        Returns:
        The total number of bytes read into the buffer, or -1 if there is no more data because the end of the content has been reached.
        Throws:
        ReadContentException - If the data cannot be read for any reason.
        See Also:
        ContentInputStream

      • hasDisposableContent

        public boolean hasDisposableContent()
        Description copied from interface: IContentManager
        This method checks if the current content manager has any IDisposableContent contents.
        Specified by:
        hasDisposableContent in interface IContentManager
        Returns:
        A flag indicating whether the content manager has disposable content objects.

      • toMetadataPath

        protected String toMetadataPath​(GUID guid)
        Calculates the file system path in which metadata is stored for content identified by the provided identifier. The path that is returned will:
        • reference a file (as opposed to a directory)
        • not start with a file name-separator
        This method uses system-dependent default name-separators, but complements paths as returned by the namingStrategy. @param GUID content identifier (cannot be null).
        Returns:
        A (relative) path (never null).

      • toContentPath

        protected String toContentPath​(GUID guid)
        Calculates the file system path in which content is stored that is identified by the provided identifier. The path that is returned will:
        • reference a file (as opposed to a directory)
        • not start with a file name-separator
        This method uses system-dependent default name-separators, but complements paths as returned by the namingStrategy. @param GUID content identifier (cannot be null).
        Returns:
        A (relative) path (never null).