Package org.apache.jackrabbit.vault.fs.io

Class ZipStreamArchive

java.lang.Object
org.apache.jackrabbit.vault.fs.io.ZipStreamArchive
All Implemented Interfaces:
Closeable, AutoCloseable, Archive
public class ZipStreamArchive extends Object
Implements an archive based on a zip stream, but deflates the entries first into a buffer and later into a temporary file, if the content length exceeds the buffer size.

  • Field Details

    • PROPERTY_ENABLE_STACK_TRACES

      protected static final String PROPERTY_ENABLE_STACK_TRACES
      See Also:

    • SHOULD_CREATE_STACK_TRACE

      protected static final boolean SHOULD_CREATE_STACK_TRACE
      Determines whether stack traces should be created for each register call of CloseWatcher. This is false by default. Enable via system or OSGi framework property vault.enableStackTraces.

  • Constructor Details

    • ZipStreamArchive

      public ZipStreamArchive(@NotNull @NotNull InputStream in)
      Creates a new zip stream archive on the given input stream.
      Parameters:
      in - the input stream to read from.

    • ZipStreamArchive

      public ZipStreamArchive(@NotNull @NotNull InputStream in, int maxBufferSize)
      Creates an ew zip stream archive on the given input stream.
      Parameters:
      in - the input stream to read from.
      maxBufferSize - size of buffer to keep content in memory.

  • Method Details

    • open

      public void open(boolean strict) throws IOException
      Description copied from interface: Archive
      Opens the archive.
      Parameters:
      strict - if true open will fail if there was an internal error while parsing meta data.
      Throws:
      IOException - if an error occurs

    • openInputStream

      public InputStream openInputStream(Archive.Entry entry) throws IOException
      Description copied from interface: Archive
      Opens an input stream for the given entry. Requires a previous call to Archive.open(boolean).
      Parameters:
      entry - the entry
      Returns:
      the input stream or null if the entry can't be read
      Throws:
      IOException - if an error occurs

    • getInputSource

      public VaultInputSource getInputSource(Archive.Entry entry) throws IOException
      Description copied from interface: Archive
      Returns an input source for the given entry. Requires a previous call to Archive.open(boolean).
      Parameters:
      entry - the entry
      Returns:
      the input source or null if the entry can't be read
      Throws:
      IOException - if an error occurs

    • getMetaInf

      public MetaInf getMetaInf()
      Description copied from interface: Archive
      Returns the meta inf. If the archive provides no specific meta data, a default, empty meta inf is returned. Requires a previous call to Archive.open(boolean).
      Returns:
      the meta inf.

    • close

      public void close()
      Description copied from interface: Archive
      Closes the archive. Only necessary to call if the archive has been opened.

    • getRoot

      public Archive.Entry getRoot() throws IOException
      Description copied from interface: Archive
      Returns the root entry. Requires a previous call to Archive.open(boolean).
      Returns:
      the root entry.
      Throws:
      IOException - if an error occurs

    • isBuffered

      public boolean isBuffered()
      Checks if this archive is currently buffered (and not using a temporary file).
      Returns:
      true if buffered.

    • getEntry

      public Archive.Entry getEntry(String path) throws IOException
      Description copied from interface: Archive
      Returns the entry specified by path. Requires a previous call to Archive.open(boolean).
      Specified by:
      getEntry in interface Archive
      Parameters:
      path - the path
      Returns:
      the entry or null if not found.
      Throws:
      IOException - if an error occurs

    • getJcrRoot

      public Archive.Entry getJcrRoot() throws IOException
      Description copied from interface: Archive
      Returns the entry that specifies the "jcr_root". if no such entry exists, null is returned. Requires a previous call to Archive.open(boolean).
      Specified by:
      getJcrRoot in interface Archive
      Returns:
      the jcr_root entry or null
      Throws:
      IOException - if an error occurs

    • getSubArchive

      public Archive getSubArchive(String rootPath, boolean asJcrRoot) throws IOException
      Description copied from interface: Archive
      Returns a sub archive that is rooted at the given path. Note that sub archives currently can't have their own meta inf and are closed automatically if their container archive is closed. Requires a previous call to Archive.open(boolean).
      Specified by:
      getSubArchive in interface Archive
      Parameters:
      rootPath - root path
      asJcrRoot - if true the given root is the jcr_root
      Returns:
      the archive or null if entry specified by root does not exist.
      Throws:
      IOException - if an error occurs