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

Example 41 with Inflater

use of java.util.zip.Inflater in project WordPress-Android by wordpress-mobile.

the class Note method buildFromBase64EncodedData.

public static synchronized Note buildFromBase64EncodedData(String noteId, String base64FullNoteData) {
    Note note = null;
    if (base64FullNoteData == null)
        return null;
    byte[] b64DecodedPayload = Base64.decode(base64FullNoteData, Base64.DEFAULT);
    // Decompress the payload
    Inflater decompresser = new Inflater();
    decompresser.setInput(b64DecodedPayload, 0, b64DecodedPayload.length);
    //max length an Android PN payload can have
    byte[] result = new byte[4096];
    int resultLength = 0;
    try {
        resultLength = decompresser.inflate(result);
        decompresser.end();
    } catch (DataFormatException e) {
        AppLog.e(AppLog.T.NOTIFS, "Can't decompress the PN Payload. It could be > 4K", e);
    }
    String out = null;
    try {
        out = new String(result, 0, resultLength, "UTF8");
    } catch (UnsupportedEncodingException e) {
        AppLog.e(AppLog.T.NOTIFS, "Notification data contains non UTF8 characters.", e);
    }
    if (out != null) {
        try {
            JSONObject jsonObject = new JSONObject(out);
            if (jsonObject.has("notes")) {
                JSONArray jsonArray = jsonObject.getJSONArray("notes");
                if (jsonArray != null && jsonArray.length() == 1) {
                    jsonObject = jsonArray.getJSONObject(0);
                }
            }
            note = new Note(noteId, jsonObject);
        } catch (JSONException e) {
            AppLog.e(AppLog.T.NOTIFS, "Can't parse the Note JSON received in the PN", e);
        }
    }
    return note;
}

Example 42 with Inflater

use of java.util.zip.Inflater in project oxCore by GluuFederation.

the class CompressionHelper method inflate.

public static byte[] inflate(byte[] data, boolean nowrap) throws IOException, DataFormatException {
    Inflater inflater = new Inflater(nowrap);
    inflater.setInput(data);
    ByteArrayOutputStream os = new ByteArrayOutputStream(data.length);
    try {
        byte[] buffer = new byte[1024];
        while (!inflater.finished()) {
            int count = inflater.inflate(buffer);
            os.write(buffer, 0, count);
        }
    } finally {
        IOUtils.closeQuietly(os);
    }
    return os.toByteArray();
}

Example 43 with Inflater

use of java.util.zip.Inflater in project intellij-plugins by JetBrains.

the class SwfTranscoder method readSource.

// in will be closed
protected void readSource(InputStream in, long inputLength) throws IOException {
    final int uncompressedBodyLength;
    final boolean compressed;
    byte[] data;
    try {
        int n = in.read(partialHeader);
        assert n == PARTIAL_HEADER_LENGTH;
        uncompressedBodyLength = (partialHeader[4] & 0xFF | (partialHeader[5] & 0xFF) << 8 | (partialHeader[6] & 0xFF) << 16 | partialHeader[7] << 24) - PARTIAL_HEADER_LENGTH;
        compressed = partialHeader[0] == 0x43;
        data = FileUtil.loadBytes(in, compressed ? (int) inputLength - PARTIAL_HEADER_LENGTH : uncompressedBodyLength);
    } finally {
        in.close();
    }
    if (compressed) {
        final Inflater inflater = INFLATER.get();
        try {
            inflater.setInput(data);
            byte[] uncompressedData = new byte[uncompressedBodyLength];
            try {
                inflater.inflate(uncompressedData);
            } catch (DataFormatException e) {
                throw new ZipException(e.getMessage() != null ? e.getMessage() : "Invalid ZLIB data format");
            }
            data = uncompressedData;
        } finally {
            inflater.reset();
        }
    }
    buffer = ByteBuffer.wrap(data).order(ByteOrder.LITTLE_ENDIAN);
    readFrameSizeFrameRateAndFrameCount(data[0]);
}

Example 44 with Inflater

use of java.util.zip.Inflater in project jdk8u_jdk by JetBrains.

the class PNGImageReader method readImage.

private void readImage(ImageReadParam param) throws IIOException {
    readMetadata();
    int width = metadata.IHDR_width;
    int height = metadata.IHDR_height;
    // Init default values
    sourceXSubsampling = 1;
    sourceYSubsampling = 1;
    sourceMinProgressivePass = 0;
    sourceMaxProgressivePass = 6;
    sourceBands = null;
    destinationBands = null;
    destinationOffset = new Point(0, 0);
    // If an ImageReadParam is available, get values from it
    if (param != null) {
        sourceXSubsampling = param.getSourceXSubsampling();
        sourceYSubsampling = param.getSourceYSubsampling();
        sourceMinProgressivePass = Math.max(param.getSourceMinProgressivePass(), 0);
        sourceMaxProgressivePass = Math.min(param.getSourceMaxProgressivePass(), 6);
        sourceBands = param.getSourceBands();
        destinationBands = param.getDestinationBands();
        destinationOffset = param.getDestinationOffset();
    }
    Inflater inf = null;
    try {
        stream.seek(imageStartPosition);
        Enumeration<InputStream> e = new PNGImageDataEnumeration(stream);
        InputStream is = new SequenceInputStream(e);
        /* InflaterInputStream uses an Inflater instance which consumes
            * native (non-GC visible) resources. This is normally implicitly
            * freed when the stream is closed. However since the
            * InflaterInputStream wraps a client-supplied input stream,
            * we cannot close it.
            * But the app may depend on GC finalization to close the stream.
            * Therefore to ensure timely freeing of native resources we
            * explicitly create the Inflater instance and free its resources
            * when we are done with the InflaterInputStream by calling
            * inf.end();
            */
        inf = new Inflater();
        is = new InflaterInputStream(is, inf);
        is = new BufferedInputStream(is);
        this.pixelStream = new DataInputStream(is);
        /*
             * NB: the PNG spec declares that valid range for width
             * and height is [1, 2^31-1], so here we may fail to allocate
             * a buffer for destination image due to memory limitation.
             *
             * However, the recovery strategy for this case should be
             * defined on the level of application, so we will not
             * try to estimate the required amount of the memory and/or
             * handle OOM in any way.
             */
        theImage = getDestination(param, getImageTypes(0), width, height);
        Rectangle destRegion = new Rectangle(0, 0, 0, 0);
        sourceRegion = new Rectangle(0, 0, 0, 0);
        computeRegions(param, width, height, theImage, sourceRegion, destRegion);
        destinationOffset.setLocation(destRegion.getLocation());
        // At this point the header has been read and we know
        // how many bands are in the image, so perform checking
        // of the read param.
        int colorType = metadata.IHDR_colorType;
        checkReadParamBandSettings(param, inputBandsForColorType[colorType], theImage.getSampleModel().getNumBands());
        processImageStarted(0);
        decodeImage();
        if (abortRequested()) {
            processReadAborted();
        } else {
            processImageComplete();
        }
    } catch (IOException e) {
        throw new IIOException("Error reading PNG image data", e);
    } finally {
        if (inf != null) {
            inf.end();
        }
    }
}

Example 45 with Inflater

use of java.util.zip.Inflater in project ceylon-compiler by ceylon.

the class ZipFileIndex method inflate.

private int inflate(byte[] src, byte[] dest) {
    Inflater inflater = (inflaterRef == null ? null : inflaterRef.get());
    // construct the inflater object or reuse an existing one
    if (inflater == null)
        inflaterRef = new SoftReference<Inflater>(inflater = new Inflater(true));
    inflater.reset();
    inflater.setInput(src);
    try {
        return inflater.inflate(dest);
    } catch (DataFormatException ex) {
        return -1;
    }
}