Examples of org.apache.commons.compress.archivers.cpio.CpioArchiveInputStream

Package org.apache.commons.compress.archivers.cpio

Examples of org.apache.commons.compress.archivers.cpio.CpioArchiveInputStream

org.apache.commons.compress.archivers.cpio.CpioArchiveInputStream
CPIOArchiveInputStream is a stream for reading cpio streams. All formats of cpio are supported (old ascii, old binary, new portable format and the new portable format with crc).

The stream can be read by extracting a cpio entry (containing all informations about a entry) and afterwards reading from the stream the file specified by the entry.
```
 CPIOArchiveInputStream cpioIn = new CPIOArchiveInputStream( new FileInputStream(new File("test.cpio"))); CPIOArchiveEntry cpioEntry;  while ((cpioEntry = cpioIn.getNextEntry()) != null) { System.out.println(cpioEntry.getName()); int tmp; StringBuilder buf = new StringBuilder(); while ((tmp = cpIn.read()) != -1) { buf.append((char) tmp); } System.out.println(buf.toString()); } cpioIn.close(); 
```
Note: This implementation should be compatible to cpio 2.5 This class uses mutable fields and is not considered to be threadsafe. Based on code from the jRPM project (jrpm.sourceforge.net)

     * @param encoding the encoding of the entry names
     */
    public ArchiveInputStream getArchiveStream(InputStream stream,
                                               String encoding)
        throws IOException {
        return new CpioArchiveInputStream(stream, encoding);
    }

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        }
        if (JAR.equalsIgnoreCase(archiverName)) {
            return new JarArchiveInputStream(in);
        }
        if (CPIO.equalsIgnoreCase(archiverName)) {
            return new CpioArchiveInputStream(in);
        }
        
        throw new ArchiveException("Archiver: " + archiverName + " not found.");
    }

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            } else if (JarArchiveInputStream.matches(signature, signatureLength)) {
                return new JarArchiveInputStream(in);
            } else if (ArArchiveInputStream.matches(signature, signatureLength)) {
                return new ArArchiveInputStream(in);
            } else if (CpioArchiveInputStream.matches(signature, signatureLength)) {
                return new CpioArchiveInputStream(in);
            }
            // Tar needs a bigger buffer to check the signature; read the first block
            final byte[] tarheader = new byte[512];
            in.mark(tarheader.length);
            signatureLength = in.read(tarheader);

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    public void testExplicitDirectoryEntry() throws Exception {
        File[] tmp = createTempDirAndFile();
        File archive = null;
        CpioArchiveOutputStream tos = null;
        CpioArchiveInputStream tis = null;
        try {
            archive = File.createTempFile("test.", ".cpio", tmp[0]);
            archive.deleteOnExit();
            tos = new CpioArchiveOutputStream(new FileOutputStream(archive));
            long beforeArchiveWrite = tmp[0].lastModified();
            CpioArchiveEntry in = new CpioArchiveEntry("foo/");
            in.setTime(beforeArchiveWrite / 1000);
            in.setMode(CpioConstants.C_ISDIR);
            tos.putArchiveEntry(in);
            tos.closeArchiveEntry();
            tos.close();
            tos = null;
            tis = new CpioArchiveInputStream(new FileInputStream(archive));
            CpioArchiveEntry out = tis.getNextCPIOEntry();
            tis.close();
            tis = null;
            assertNotNull(out);
            assertEquals("foo/", out.getName());
            assertEquals(0, out.getSize());
            assertEquals(beforeArchiveWrite / 1000,
                         out.getLastModifiedDate().getTime() / 1000);
            assertTrue(out.isDirectory());
        } finally {
            if (tis != null) {
                tis.close();
            }
            if (tos != null) {
                tos.close();
            }
            tryHardToDelete(archive);

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    public void testFileEntryFromFile() throws Exception {
        File[] tmp = createTempDirAndFile();
        File archive = null;
        CpioArchiveOutputStream tos = null;
        CpioArchiveInputStream tis = null;
        FileInputStream fis = null;
        try {
            archive = File.createTempFile("test.", ".cpio", tmp[0]);
            archive.deleteOnExit();
            tos = new CpioArchiveOutputStream(new FileOutputStream(archive));
            CpioArchiveEntry in = new CpioArchiveEntry(tmp[1], "foo");
            tos.putArchiveEntry(in);
            byte[] b = new byte[(int) tmp[1].length()];
            fis = new FileInputStream(tmp[1]);
            while (fis.read(b) > 0) {
                tos.write(b);
            }
            fis.close();
            fis = null;
            tos.closeArchiveEntry();
            tos.close();
            tos = null;
            tis = new CpioArchiveInputStream(new FileInputStream(archive));
            CpioArchiveEntry out = tis.getNextCPIOEntry();
            tis.close();
            tis = null;
            assertNotNull(out);
            assertEquals("foo", out.getName());
            assertEquals(tmp[1].length(), out.getSize());
            assertEquals(tmp[1].lastModified() / 1000,
                         out.getLastModifiedDate().getTime() / 1000);
            assertFalse(out.isDirectory());
        } finally {
            if (tis != null) {
                tis.close();
            }
            if (tos != null) {
                tos.close();
            }
            tryHardToDelete(archive);

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    public void testExplicitFileEntry() throws Exception {
        File[] tmp = createTempDirAndFile();
        File archive = null;
        CpioArchiveOutputStream tos = null;
        CpioArchiveInputStream tis = null;
        FileInputStream fis = null;
        try {
            archive = File.createTempFile("test.", ".cpio", tmp[0]);
            archive.deleteOnExit();
            tos = new CpioArchiveOutputStream(new FileOutputStream(archive));
            CpioArchiveEntry in = new CpioArchiveEntry("foo");
            in.setTime(tmp[1].lastModified() / 1000);
            in.setSize(tmp[1].length());
            in.setMode(CpioConstants.C_ISREG);
            tos.putArchiveEntry(in);
            byte[] b = new byte[(int) tmp[1].length()];
            fis = new FileInputStream(tmp[1]);
            while (fis.read(b) > 0) {
                tos.write(b);
            }
            fis.close();
            fis = null;
            tos.closeArchiveEntry();
            tos.close();
            tos = null;
            tis = new CpioArchiveInputStream(new FileInputStream(archive));
            CpioArchiveEntry out = tis.getNextCPIOEntry();
            tis.close();
            tis = null;
            assertNotNull(out);
            assertEquals("foo", out.getName());
            assertEquals(tmp[1].length(), out.getSize());
            assertEquals(tmp[1].lastModified() / 1000,
                         out.getLastModifiedDate().getTime() / 1000);
            assertFalse(out.isDirectory());
        } finally {
            if (tis != null) {
                tis.close();
            }
            if (tos != null) {
                tos.close();
            }
            tryHardToDelete(archive);

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            unpack(new ZipArchiveInputStream(stream), xhtml);
        } else if ((a == '0' && b == '7')
                || (a == 0x71 && b == 0xc7)
                || (a == 0xc7 && b == 0x71)) {
            metadata.set(Metadata.CONTENT_TYPE, "application/x-cpio");
            unpack(new CpioArchiveInputStream(stream), xhtml);
        } else if (a == '=' && (b == '<' || b == '!')) {
            metadata.set(Metadata.CONTENT_TYPE, "application/x-archive");
            unpack(new ArArchiveInputStream(stream), xhtml);
        } else {
            metadata.set(Metadata.CONTENT_TYPE, "application/x-tar");

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            unpack(new ZipArchiveInputStream(stream), xhtml);
        } else if ((a == '0' && b == '7')
                || (a == 0x71 && b == 0xc7)
                || (a == 0xc7 && b == 0x71)) {
            metadata.set(Metadata.CONTENT_TYPE, "application/x-cpio");
            unpack(new CpioArchiveInputStream(stream), xhtml);
        } else if (a == '=' && (b == '<' || b == '!')) {
            metadata.set(Metadata.CONTENT_TYPE, "application/x-archive");
            unpack(new ArArchiveInputStream(stream), xhtml);
        } else {
            metadata.set(Metadata.CONTENT_TYPE, "application/x-tar");

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    public void testDirectoryEntryFromFile() throws Exception {
        File[] tmp = createTempDirAndFile();
        File archive = null;
        CpioArchiveOutputStream tos = null;
        CpioArchiveInputStream tis = null;
        try {
            archive = File.createTempFile("test.", ".cpio", tmp[0]);
            archive.deleteOnExit();
            tos = new CpioArchiveOutputStream(new FileOutputStream(archive));
            long beforeArchiveWrite = tmp[0].lastModified();
            CpioArchiveEntry in = new CpioArchiveEntry(tmp[0], "foo");
            tos.putArchiveEntry(in);
            tos.closeArchiveEntry();
            tos.close();
            tos = null;
            tis = new CpioArchiveInputStream(new FileInputStream(archive));
            CpioArchiveEntry out = tis.getNextCPIOEntry();
            tis.close();
            tis = null;
            assertNotNull(out);
            assertEquals("foo", out.getName());
            assertEquals(0, out.getSize());
            // CPIO stores time with a granularity of 1 second
            assertEquals(beforeArchiveWrite / 1000,
                         out.getLastModifiedDate().getTime() / 1000);
            assertTrue(out.isDirectory());
        } finally {
            if (tis != null) {
                tis.close();
            }
            if (tos != null) {
                tos.close();
            }
            tryHardToDelete(archive);

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