Examples with InflaterInputStream java.util.zip.InflaterInputStream used on opensource projects

Example 26 with InflaterInputStream

use of java.util.zip.InflaterInputStream in project android_frameworks_base by ResurrectionRemix.

the class BlobBackupHelper method inflate.

// Returns null if inflation failed
private byte[] inflate(byte[] compressedData) {
    byte[] result = null;
    if (compressedData != null) {
        try {
            ByteArrayInputStream source = new ByteArrayInputStream(compressedData);
            DataInputStream headerIn = new DataInputStream(source);
            int version = headerIn.readInt();
            if (version > mCurrentBlobVersion) {
                Log.w(TAG, "Saved payload from unrecognized version " + version);
                return null;
            }
            InflaterInputStream in = new InflaterInputStream(source);
            ByteArrayOutputStream inflated = new ByteArrayOutputStream();
            byte[] buffer = new byte[4096];
            int nRead;
            while ((nRead = in.read(buffer)) > 0) {
                inflated.write(buffer, 0, nRead);
            }
            in.close();
            inflated.flush();
            result = inflated.toByteArray();
            if (DEBUG) {
                Log.v(TAG, "Inflated " + compressedData.length + " bytes to " + result.length);
            }
        } catch (IOException e) {
            // result is still null here
            Log.w(TAG, "Unable to process restored payload: " + e.getMessage());
        }
    }
    return result;
}

Example 27 with InflaterInputStream

use of java.util.zip.InflaterInputStream in project voltdb by VoltDB.

the class FileArchiver method unarchive.

public static void unarchive(String infilename, String outfilename, FileAccess storage, int compressionType) throws IOException {
    InputStream f = null;
    OutputStream outstream = null;
    boolean completed = false;
    try {
        if (!storage.isStreamElement(infilename)) {
            return;
        }
        storage.removeElement(outfilename);
        byte[] b = new byte[COPY_BLOCK_SIZE];
        f = storage.openInputStreamElement(infilename);
        switch(compressionType) {
            case COMPRESSION_ZIP:
                f = new InflaterInputStream(f, new Inflater());
                break;
            case COMPRESSION_GZIP:
                f = new GZIPInputStream(f, b.length);
                break;
            case COMPRESSION_NONE:
                break;
            default:
                throw new RuntimeException("FileArchiver: " + compressionType);
        }
        outstream = storage.openOutputStreamElement(outfilename);
        while (true) {
            int l = f.read(b, 0, b.length);
            if (l == -1) {
                break;
            }
            outstream.write(b, 0, l);
        }
        completed = true;
    } catch (Throwable e) {
        throw FileUtil.toIOException(e);
    } finally {
        try {
            if (f != null) {
                f.close();
            }
            if (outstream != null) {
                outstream.flush();
                outstream.close();
            }
            if (!completed && storage.isStreamElement(outfilename)) {
                storage.removeElement(outfilename);
            }
        } catch (Throwable e) {
            throw FileUtil.toIOException(e);
        }
    }
}

Example 28 with InflaterInputStream

use of java.util.zip.InflaterInputStream in project voltdb by VoltDB.

the class ScriptReaderZipped method openFile.

protected void openFile() throws IOException {
    InputStream d = db.isFilesInJar() ? getClass().getResourceAsStream(fileName) : db.getFileAccess().openInputStreamElement(fileName);
    dataStreamIn = new DataInputStream(new BufferedInputStream(new InflaterInputStream(d, new Inflater()), 1 << 13));
}

Example 29 with InflaterInputStream

use of java.util.zip.InflaterInputStream in project voltdb by VoltDB.

the class Encoder method decodeBase64AndDecompressToBytes.

public static byte[] decodeBase64AndDecompressToBytes(String string) {
    byte[] bytes = Base64.decodeFast(string);
    if (string.length() == 0) {
        return new byte[0];
    }
    ByteArrayInputStream bais = new ByteArrayInputStream(bytes);
    InflaterInputStream dis = new InflaterInputStream(bais);
    byte[] buffer = new byte[1024 * 8];
    int length = 0;
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    try {
        while ((length = dis.read(buffer)) >= 0) {
            baos.write(buffer, 0, length);
        }
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
    return baos.toByteArray();
}

Example 30 with InflaterInputStream

use of java.util.zip.InflaterInputStream in project mc-dev by Bukkit.

the class RegionFile method a.

public synchronized DataInputStream a(int i, int j) {
    if (this.d(i, j)) {
        return null;
    } else {
        try {
            int k = this.e(i, j);
            if (k == 0) {
                return null;
            } else {
                int l = k >> 8;
                int i1 = k & 255;
                if (l + i1 > this.f.size()) {
                    return null;
                } else {
                    this.c.seek((long) (l * 4096));
                    int j1 = this.c.readInt();
                    if (j1 > 4096 * i1) {
                        return null;
                    } else if (j1 <= 0) {
                        return null;
                    } else {
                        byte b0 = this.c.readByte();
                        byte[] abyte;
                        if (b0 == 1) {
                            abyte = new byte[j1 - 1];
                            this.c.read(abyte);
                            return new DataInputStream(new BufferedInputStream(new GZIPInputStream(new ByteArrayInputStream(abyte))));
                        } else if (b0 == 2) {
                            abyte = new byte[j1 - 1];
                            this.c.read(abyte);
                            return new DataInputStream(new BufferedInputStream(new InflaterInputStream(new ByteArrayInputStream(abyte))));
                        } else {
                            return null;
                        }
                    }
                }
            }
        } catch (IOException ioexception) {
            return null;
        }
    }
}