Package proguard.io

Class ZipWriter

java.lang.Object
proguard.io.ZipWriter
All Implemented Interfaces:
AutoCloseable, DataEntryWriter
public class ZipWriter extends Object implements DataEntryWriter
This DataEntryWriter sends data entries to the zip files specified by their parents.

  • Field Details

    • currentZipOutput

      public ZipOutput currentZipOutput

  • Constructor Details

    • ZipWriter

      public ZipWriter(DataEntryWriter dataEntryWriter)
      Creates a new ZipWriter that compresses all zip entries.
      Parameters:
      dataEntryWriter - the data entry writer that can provide output streams for the zip archives.

    • ZipWriter

      public ZipWriter(StringMatcher uncompressedFilter, int uncompressedAlignment, boolean useZip64, int modificationTime, DataEntryWriter dataEntryWriter)
      Creates a new ZipWriter.
      Parameters:
      uncompressedFilter - an optional filter for files that should not be compressed.
      uncompressedAlignment - the desired alignment for the data of uncompressed entries.
      useZip64 - Whether to write out the archive in zip64 format.
      modificationTime - the modification date and time of the zip entries, in DOS format.
      dataEntryWriter - the data entry writer that can provide output streams for the zip archives.

    • ZipWriter

      public ZipWriter(StringMatcher uncompressedFilter, int uncompressedAlignment, boolean useZip64, StringMatcher extraUncompressedAlignmentFilter, int extraUncompressedAlignment, int modificationTime, DataEntryWriter dataEntryWriter)
      Creates a new ZipWriter.
      Parameters:
      uncompressedFilter - an optional filter for files that should not be compressed.
      uncompressedAlignment - the desired alignment for the data of uncompressed entries.
      useZip64 - Whether to write out the archive in zip64 format.
      extraUncompressedAlignmentFilter - an optional filter for files that should not be compressed and use a different alignment.
      extraUncompressedAlignment - the desired alignment for the data of entries matching extraAlignmentFilter.
      modificationTime - the modification date and time of the zip entries, in DOS format.
      dataEntryWriter - the data entry writer that can provide output streams for the zip archives.

    • ZipWriter

      public ZipWriter(StringMatcher uncompressedFilter, int uncompressedAlignment, boolean useZip64, int modificationTime, byte[] header, DataEntryWriter dataEntryWriter)
      Creates a new ZipWriter.
      Parameters:
      uncompressedFilter - an optional filter for files that should not be compressed.
      uncompressedAlignment - the desired alignment for the data of uncompressed entries.
      useZip64 - Whether to write out the archive in zip64 format.
      modificationTime - the modification date and time of the zip entries, in DOS format.
      dataEntryWriter - the data entry writer that can provide output streams for the zip archives.

    • ZipWriter

      public ZipWriter(StringMatcher uncompressedFilter, int uncompressedAlignment, StringMatcher extraUncompressedAlignmentFilter, int extraUncompressedAlignment, int modificationTime, byte[] header, DataEntryWriter dataEntryWriter)
      Creates a new ZipWriter.
      Parameters:
      uncompressedFilter - an optional filter for files that should not be compressed.
      uncompressedAlignment - the desired alignment for the data of uncompressed entries.
      extraUncompressedAlignmentFilter - an optional filter for files that should not be compressed and use a different alignment.
      extraUncompressedAlignment - the desired alignment for the data of entries matching extraAlignmentFilter.
      modificationTime - the modification date and time of the zip entries, in DOS format.
      dataEntryWriter - the data entry writer that can provide output streams for the zip archives.

    • ZipWriter

      public ZipWriter(StringMatcher uncompressedFilter, int uncompressedAlignment, boolean useZip64, StringMatcher extraUncompressedAlignmentFilter, int extraUncompressedAlignment, int modificationTime, byte[] header, DataEntryWriter dataEntryWriter)
      Creates a new ZipWriter.
      Parameters:
      uncompressedFilter - an optional filter for files that should not be compressed.
      uncompressedAlignment - the desired alignment for the data of uncompressed entries.
      useZip64 - Whether to write out the archive in zip64 format.
      extraUncompressedAlignmentFilter - an optional filter for files that should not be compressed and use a different alignment.
      extraUncompressedAlignment - the desired alignment for the data of entries matching extraAlignmentFilter.
      modificationTime - the modification date and time of the zip entries, in DOS format.
      dataEntryWriter - the data entry writer that can provide output streams for the zip archives.

  • Method Details

    • createDirectory

      public boolean createDirectory(DataEntry dataEntry) throws IOException
      Description copied from interface: DataEntryWriter
      Creates a directory.
      Specified by:
      createDirectory in interface DataEntryWriter
      Parameters:
      dataEntry - the data entry for which the directory is to be created.
      Returns:
      whether the directory has been created.
      Throws:
      IOException

    • sameOutputStream

      public boolean sameOutputStream(DataEntry dataEntry1, DataEntry dataEntry2) throws IOException
      Description copied from interface: DataEntryWriter
      Returns whether the two given data entries would result in the same output stream.
      Specified by:
      sameOutputStream in interface DataEntryWriter
      Parameters:
      dataEntry1 - the first data entry.
      dataEntry2 - the second data entry.
      Throws:
      IOException

    • createOutputStream

      public OutputStream createOutputStream(DataEntry dataEntry) throws IOException
      Description copied from interface: DataEntryWriter
      Creates a new output stream for writing data. The caller is responsible for closing the stream.
      Specified by:
      createOutputStream in interface DataEntryWriter
      Parameters:
      dataEntry - the data entry for which the output stream is to be created.
      Returns:
      the output stream. The stream may be null to indicate that the data entry should not be written.
      Throws:
      IOException

    • close

      public void close() throws IOException
      Description copied from interface: DataEntryWriter
      Finishes writing all data entries.

      Implementations typically create graphs of writers that can split and merge again, possibly even with cycles.

      For splits and merges, implementations need to be idempotent; once closed, subsequent attempts to close a writer have no effect. If needed, the wrapper NonClosingDataEntryWriter can avoid closing a branch prematurely.

      For cycles, implementations must perform any custom behavior, then delegate DataEntryWriter.close() invocations, and only finally clean up. It is possible that delegates call DataEntryWriter.createOutputStream(DataEntry) while DataEntryWriter.close() is in progress.

      Specified by:
      close in interface AutoCloseable
      Specified by:
      close in interface DataEntryWriter
      Throws:
      IOException

    • println

      public void println(PrintWriter pw, String prefix)
      Description copied from interface: DataEntryWriter
      Prints out the structure of the data entry writer.
      Specified by:
      println in interface DataEntryWriter
      Parameters:
      pw - the print stream to which the structure should be printed.
      prefix - a prefix for every printed line.

    • createZipOutput

      protected ZipOutput createZipOutput(OutputStream outputStream, byte[] header, int uncompressedAlignment, boolean useZip64, String comment) throws IOException
      Creates a zip output with the given header and parameters.
      Throws:
      IOException