org.apache.commons.compress.archivers.cpio

Class CpioArchiveOutputStream

  • All Implemented Interfaces:
    Closeable, Flushable, AutoCloseable, CpioConstants


    public class CpioArchiveOutputStreamextends ArchiveOutputStreamimplements CpioConstants
    CPIOArchiveOutputStream is a stream for writing CPIO streams. All formats of CPIO are supported (old ASCII, old binary, new portable format and the new portable format with CRC).

    An entry can be written by creating an instance of CpioArchiveEntry and fill it with the necessary values and put it into the CPIO stream. Afterwards write the contents of the file into the CPIO stream. Either close the stream by calling finish() or put a next entry into the cpio stream.

     CpioArchiveOutputStream out = new CpioArchiveOutputStream(         new FileOutputStream(new File("test.cpio"))); CpioArchiveEntry entry = new CpioArchiveEntry(); entry.setName("testfile"); String contents = "12345"; entry.setFileSize(contents.length()); entry.setMode(CpioConstants.C_ISREG); // regular file ... set other attributes, e.g. time, number of links out.putArchiveEntry(entry); out.write(testContents.getBytes()); out.close(); 

    Note: This implementation should be compatible to cpio 2.5

    This class uses mutable fields and is not considered threadsafe.

    based on code from the jRPM project (jrpm.sourceforge.net)

    • Constructor Detail

      • CpioArchiveOutputStream

        public CpioArchiveOutputStream(OutputStream out,                       short format)
        Construct the cpio output stream with a specified format, a blocksize of BLOCK_SIZE and using ASCII as the file name encoding.
        Parameters:
        out - The cpio stream
        format - The format of the stream
      • CpioArchiveOutputStream

        public CpioArchiveOutputStream(OutputStream out,                       short format,                       int blockSize)
        Construct the cpio output stream with a specified format using ASCII as the file name encoding.
        Parameters:
        out - The cpio stream
        format - The format of the stream
        blockSize - The block size of the archive.
        Since:
        1.1
      • CpioArchiveOutputStream

        public CpioArchiveOutputStream(OutputStream out,                       short format,                       int blockSize,                       String encoding)
        Construct the cpio output stream with a specified format using ASCII as the file name encoding.
        Parameters:
        out - The cpio stream
        format - The format of the stream
        blockSize - The block size of the archive.
        encoding - The encoding of file names to write - use null for the platform's default.
        Since:
        1.6
      • CpioArchiveOutputStream

        public CpioArchiveOutputStream(OutputStream out)
        Construct the cpio output stream. The format for this CPIO stream is the "new" format using ASCII encoding for file names
        Parameters:
        out - The cpio stream
      • CpioArchiveOutputStream

        public CpioArchiveOutputStream(OutputStream out,                       String encoding)
        Construct the cpio output stream. The format for this CPIO stream is the "new" format.
        Parameters:
        out - The cpio stream
        encoding - The encoding of file names to write - use null for the platform's default.
        Since:
        1.6

Copyright © 2016 The Apache Software Foundation. All rights reserved.



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