Example usage for java.util.zip InflaterInputStream InflaterInputStream

List of usage examples for java.util.zip InflaterInputStream InflaterInputStream

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Introduction

In this page you can find the example usage for java.util.zip InflaterInputStream InflaterInputStream.

Prototype

public InflaterInputStream(InputStream in, Inflater inf)

Source Link

Document

Creates a new input stream with the specified decompressor and a default buffer size.

Usage

From source file:org.kymjs.kjframe.http.httpclient.HttpRequestBuilder.java

/**
 * Open the {@link InputStream} of an Http response. This method supports
 * GZIP and DEFLATE responses.//from ww w .jav a 2 s . c  o m
 */
private static InputStream getInputStream(HttpURLConnection conn) throws IOException {
    final List<String> contentEncodingValues = conn.getHeaderFields().get("Content-Encoding");
    if (contentEncodingValues != null) {
        for (final String contentEncoding : contentEncodingValues) {
            if (contentEncoding != null) {
                if (contentEncoding.contains("gzip")) {
                    return new GZIPInputStream(conn.getInputStream());
                }
                if (contentEncoding.contains("deflate")) {
                    return new InflaterInputStream(conn.getInputStream(), new Inflater(true));
                }
            }
        }
    }
    return conn.getInputStream();
}

From source file:org.apache.xmlgraphics.image.codec.png.PNGImageDecoder.java

private void parse_IEND_chunk(final PNGChunk chunk) {
    // Store text strings
    final int textLen = this.textKeys.size();
    final String[] textArray = new String[2 * textLen];
    for (int i = 0; i < textLen; ++i) {
        final String key = this.textKeys.get(i);
        final String val = this.textStrings.get(i);
        textArray[2 * i] = key;//w  w  w  .ja va 2s.co m
        textArray[2 * i + 1] = val;
        if (this.emitProperties) {
            final String uniqueKey = "text_" + i + ':' + key;
            this.properties.put(uniqueKey.toLowerCase(), val);
        }
    }
    if (this.encodeParam != null) {
        this.encodeParam.setText(textArray);
    }

    // Store compressed text strings
    final int ztextLen = this.ztextKeys.size();
    final String[] ztextArray = new String[2 * ztextLen];
    for (int i = 0; i < ztextLen; ++i) {
        final String key = this.ztextKeys.get(i);
        final String val = this.ztextStrings.get(i);
        ztextArray[2 * i] = key;
        ztextArray[2 * i + 1] = val;
        if (this.emitProperties) {
            final String uniqueKey = "ztext_" + i + ':' + key;
            this.properties.put(uniqueKey.toLowerCase(), val);
        }
    }
    if (this.encodeParam != null) {
        this.encodeParam.setCompressedText(ztextArray);
    }

    // Parse prior IDAT chunks
    final InputStream seqStream = new SequenceInputStream(Collections.enumeration(this.streamVec));
    final InputStream infStream = new InflaterInputStream(seqStream, new Inflater());
    this.dataStream = new DataInputStream(infStream);

    // Create an empty WritableRaster
    int depth = this.bitDepth;
    if (this.colorType == PNG_COLOR_GRAY && this.bitDepth < 8 && this.output8BitGray) {
        depth = 8;
    }
    if (this.colorType == PNG_COLOR_PALETTE && this.expandPalette) {
        depth = 8;
    }
    final int bytesPerRow = (this.outputBands * this.width * depth + 7) / 8;
    final int scanlineStride = depth == 16 ? bytesPerRow / 2 : bytesPerRow;

    this.theTile = createRaster(this.width, this.height, this.outputBands, scanlineStride, depth);

    if (this.performGammaCorrection && this.gammaLut == null) {
        initGammaLut(this.bitDepth);
    }
    if (this.postProcess == POST_GRAY_LUT || this.postProcess == POST_GRAY_LUT_ADD_TRANS
            || this.postProcess == POST_GRAY_LUT_ADD_TRANS_EXP) {
        initGrayLut(this.bitDepth);
    }

    decodeImage(this.interlaceMethod == 1);
    this.sampleModel = this.theTile.getSampleModel();

    if (this.colorType == PNG_COLOR_PALETTE && !this.expandPalette) {
        if (this.outputHasAlphaPalette) {
            this.colorModel = new IndexColorModel(this.bitDepth, this.paletteEntries, this.redPalette,
                    this.greenPalette, this.bluePalette, this.alphaPalette);
        } else {
            this.colorModel = new IndexColorModel(this.bitDepth, this.paletteEntries, this.redPalette,
                    this.greenPalette, this.bluePalette);
        }
    } else if (this.colorType == PNG_COLOR_GRAY && this.bitDepth < 8 && !this.output8BitGray) {
        final byte[] palette = this.expandBits[this.bitDepth];
        this.colorModel = new IndexColorModel(this.bitDepth, palette.length, palette, palette, palette);
    } else {
        this.colorModel = createComponentColorModel(this.sampleModel);
    }
}

From source file:org.kymjs.kjframe.http.httpclient.HttpRequestBuilder.java

/**
 * Open the error {@link InputStream} of an Http response. This method
 * supports GZIP and DEFLATE responses./*from   w ww  .  ja v  a  2 s .  c  o  m*/
 */
private static InputStream getErrorStream(HttpURLConnection conn) throws IOException {
    final List<String> contentEncodingValues = conn.getHeaderFields().get("Content-Encoding");
    if (contentEncodingValues != null) {
        for (final String contentEncoding : contentEncodingValues) {
            if (contentEncoding != null) {
                if (contentEncoding.contains("gzip")) {
                    return new GZIPInputStream(conn.getErrorStream());
                }
                if (contentEncoding.contains("deflate")) {
                    return new InflaterInputStream(conn.getErrorStream(), new Inflater(true));
                }
            }
        }
    }
    return conn.getErrorStream();
}

From source file:org.apache.xmlgraphics.image.codec.png.PNGRed.java

private void parse_IEND_chunk(final PNGChunk chunk) throws IOException {
    // Store text strings
    final int textLen = this.textKeys.size();
    final String[] textArray = new String[2 * textLen];
    for (int i = 0; i < textLen; ++i) {
        final String key = this.textKeys.get(i);
        final String val = this.textStrings.get(i);
        textArray[2 * i] = key;//from w w w . ja v a 2s . com
        textArray[2 * i + 1] = val;
        if (this.emitProperties) {
            final String uniqueKey = "text_" + i + ':' + key;
            this.properties.put(uniqueKey.toLowerCase(), val);
        }
    }
    if (this.encodeParam != null) {
        this.encodeParam.setText(textArray);
    }

    // Store compressed text strings
    final int ztextLen = this.ztextKeys.size();
    final String[] ztextArray = new String[2 * ztextLen];
    for (int i = 0; i < ztextLen; ++i) {
        final String key = this.ztextKeys.get(i);
        final String val = this.ztextStrings.get(i);
        ztextArray[2 * i] = key;
        ztextArray[2 * i + 1] = val;
        if (this.emitProperties) {
            final String uniqueKey = "ztext_" + i + ':' + key;
            this.properties.put(uniqueKey.toLowerCase(), val);
        }
    }
    if (this.encodeParam != null) {
        this.encodeParam.setCompressedText(ztextArray);
    }

    // Parse prior IDAT chunks
    final InputStream seqStream = new SequenceInputStream(Collections.enumeration(this.streamVec));
    final InputStream infStream = new InflaterInputStream(seqStream, new Inflater());
    this.dataStream = new DataInputStream(infStream);

    // Create an empty WritableRaster
    int depth = this.bitDepth;
    if (this.colorType == PNG_COLOR_GRAY && this.bitDepth < 8 && this.output8BitGray) {
        depth = 8;
    }
    if (this.colorType == PNG_COLOR_PALETTE && this.expandPalette) {
        depth = 8;
    }
    final int width = this.bounds.width;
    final int height = this.bounds.height;

    final int bytesPerRow = (this.outputBands * width * depth + 7) / 8;
    final int scanlineStride = depth == 16 ? bytesPerRow / 2 : bytesPerRow;

    this.theTile = createRaster(width, height, this.outputBands, scanlineStride, depth);

    if (this.performGammaCorrection && this.gammaLut == null) {
        initGammaLut(this.bitDepth);
    }
    if (this.postProcess == POST_GRAY_LUT || this.postProcess == POST_GRAY_LUT_ADD_TRANS
            || this.postProcess == POST_GRAY_LUT_ADD_TRANS_EXP) {
        initGrayLut(this.bitDepth);
    }

    decodeImage(this.interlaceMethod == 1);

    // Free resources associated with compressed data.
    this.dataStream.close();
    infStream.close();
    seqStream.close();
    this.streamVec = null;

    final SampleModel sm = this.theTile.getSampleModel();
    ColorModel cm;

    if (this.colorType == PNG_COLOR_PALETTE && !this.expandPalette) {
        if (this.outputHasAlphaPalette) {
            cm = new IndexColorModel(this.bitDepth, this.paletteEntries, this.redPalette, this.greenPalette,
                    this.bluePalette, this.alphaPalette);
        } else {
            cm = new IndexColorModel(this.bitDepth, this.paletteEntries, this.redPalette, this.greenPalette,
                    this.bluePalette);
        }
    } else if (this.colorType == PNG_COLOR_GRAY && this.bitDepth < 8 && !this.output8BitGray) {
        final byte[] palette = this.expandBits[this.bitDepth];
        cm = new IndexColorModel(this.bitDepth, palette.length, palette, palette, palette);
    } else {
        cm = createComponentColorModel(sm);
    }

    init((CachableRed) null, this.bounds, cm, sm, 0, 0, this.properties);
}

From source file:org.pluroid.pluroium.PlurkHelper.java

private Response performRequest(String url, Map<String, String> reqParams) {
    Response rsp = null;/* ww  w . ja v a  2s  . co m*/

    ArrayList<NameValuePair> params = new ArrayList<NameValuePair>();
    params.add(new BasicNameValuePair("api_key", API_KEY));
    for (String key : reqParams.keySet()) {
        params.add(new BasicNameValuePair(key, reqParams.get(key)));
    }
    HttpEntity entity = null;
    try {
        entity = new UrlEncodedFormEntity(params, "UTF-8");
    } catch (final UnsupportedEncodingException e) {
        // this should never happen.
        throw new AssertionError(e);
    }
    HttpPost post = new HttpPost(url);
    post.addHeader(entity.getContentType());
    post.addHeader("Accept-Encoding", "gzip,deflate");
    post.setEntity(entity);

    try {
        HttpResponse resp = httpClient.execute(post);
        rsp = new Response();
        rsp.statusCode = resp.getStatusLine().getStatusCode();
        HttpEntity respEntity = resp.getEntity();
        InputStream is = null;
        if (respEntity.getContentEncoding() != null) {
            String contentEncoding = respEntity.getContentEncoding().getValue();
            if ("gzip".equals(contentEncoding)) {
                is = new GZIPInputStream(respEntity.getContent());
            } else if ("deflate".equals(contentEncoding)) {
                is = new InflaterInputStream(respEntity.getContent(), new Inflater(true));
            } else {
                is = respEntity.getContent();
            }
        } else {
            is = respEntity.getContent();
        }

        rsp.responseText = getResponseText(is);
    } catch (IOException e) {
        Log.e(TAG, "Network access error!", e);
    } finally {
        connMgr.shutdown();
    }

    return rsp;
}

From source file:com.tremolosecurity.idp.providers.OpenIDConnectIdP.java

private String inflate(String saml) throws Exception {
    byte[] compressedData = org.bouncycastle.util.encoders.Base64.decode(saml);
    ByteArrayInputStream bin = new ByteArrayInputStream(compressedData);

    InflaterInputStream decompressor = new InflaterInputStream(bin, new Inflater(true));
    //decompressor.setInput(compressedData);

    // Create an expandable byte array to hold the decompressed data
    ByteArrayOutputStream bos = new ByteArrayOutputStream(compressedData.length);

    // Decompress the data
    byte[] buf = new byte[1024];
    int len;//from   w  w  w. j  a  va 2s .  co m
    while ((len = decompressor.read(buf)) > 0) {

        bos.write(buf, 0, len);

    }
    try {
        bos.close();
    } catch (IOException e) {
    }

    // Get the decompressed data
    byte[] decompressedData = bos.toByteArray();

    String decoded = new String(decompressedData);

    return decoded;
}

From source file:tr.edu.gsu.nerwip.retrieval.reader.wikipedia.WikipediaReader.java

/**
 * Reads the source code of the web page at the specified
 * URL./* ww  w . jav a  2  s . c o  m*/
 * 
 * @param url
 *       Address of the web page to be read.
 * @return
 *       String containing the read HTML source code.
 * 
 * @throws IOException
 *       Problem while accessing the specified URL.
 */
private String manuallyReadUrl(URL url) throws IOException {
    boolean trad = false;

    BufferedReader br = null;

    // open page the traditional way
    if (trad) {
        InputStream is = url.openStream();
        InputStreamReader isr = new InputStreamReader(is);
        br = new BufferedReader(isr);
    }

    // open with more options
    else { // setup connection
        HttpURLConnection connection = (HttpURLConnection) url.openConnection();
        connection.setRequestMethod("GET");
        connection.setDoOutput(true);
        connection.setReadTimeout(2000);
        connection.setChunkedStreamingMode(0);
        connection.setRequestProperty("Content-Length", "0");
        //         connection.setRequestProperty("User-Agent", "Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.4; en-US; rv:1.9.2.2) Gecko/20100316 Firefox/3.6.2");
        connection.setRequestProperty("User-Agent",
                "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/30.0.1599.101 Safari/537.36");
        connection.connect();

        // setup input stream
        // part retrieved from http://stackoverflow.com/questions/538999/java-util-scanner-and-wikipedia
        // original author: Marco Beggio
        InputStream is = null;
        String encoding = connection.getContentEncoding();
        if (connection.getContentEncoding() != null && encoding.equals("gzip")) {
            is = new GZIPInputStream(connection.getInputStream());
        } else if (encoding != null && encoding.equals("deflate")) {
            is = new InflaterInputStream(connection.getInputStream(), new Inflater(true));
        } else {
            is = connection.getInputStream();
        }

        // alternative to spot error details            
        //         InputStream is;
        //         if (connection.getResponseCode() != 200) 
        //            is = connection.getErrorStream();
        //         else 
        //            is = connection.getInputStream();

        InputStreamReader isr = new InputStreamReader(is);
        br = new BufferedReader(isr);
    }

    // read page
    StringBuffer sourceCode = new StringBuffer();
    String line = br.readLine();
    while (line != null) {
        sourceCode.append(line + "\n");
        line = br.readLine();
    }

    String result = sourceCode.toString();
    br.close();
    return result;
}

From source file:cgeo.geocaching.cgBase.java

public static void postTweet(cgeoapplication app, cgSettings settings, String status, final Geopoint coords) {
    if (app == null) {
        return;// ww w  .  j a  va2 s .c  o  m
    }
    if (settings == null || StringUtils.isBlank(settings.tokenPublic)
            || StringUtils.isBlank(settings.tokenSecret)) {
        return;
    }

    try {
        Map<String, String> parameters = new HashMap<String, String>();

        parameters.put("status", status);
        if (coords != null) {
            parameters.put("lat", String.format("%.6f", coords.getLatitude()));
            parameters.put("long", String.format("%.6f", coords.getLongitude()));
            parameters.put("display_coordinates", "true");
        }

        final String paramsDone = cgOAuth.signOAuth("api.twitter.com", "/1/statuses/update.json", "POST", false,
                parameters, settings.tokenPublic, settings.tokenSecret);

        HttpURLConnection connection = null;
        try {
            final StringBuffer buffer = new StringBuffer();
            final URL u = new URL("http://api.twitter.com/1/statuses/update.json");
            final URLConnection uc = u.openConnection();

            uc.setRequestProperty("Host", "api.twitter.com");

            connection = (HttpURLConnection) uc;
            connection.setReadTimeout(30000);
            connection.setRequestMethod("POST");
            HttpURLConnection.setFollowRedirects(true);
            connection.setDoInput(true);
            connection.setDoOutput(true);

            final OutputStream out = connection.getOutputStream();
            final OutputStreamWriter wr = new OutputStreamWriter(out);
            wr.write(paramsDone);
            wr.flush();
            wr.close();

            Log.i(cgSettings.tag,
                    "Twitter.com: " + connection.getResponseCode() + " " + connection.getResponseMessage());

            InputStream ins;
            final String encoding = connection.getContentEncoding();

            if (encoding != null && encoding.equalsIgnoreCase("gzip")) {
                ins = new GZIPInputStream(connection.getInputStream());
            } else if (encoding != null && encoding.equalsIgnoreCase("deflate")) {
                ins = new InflaterInputStream(connection.getInputStream(), new Inflater(true));
            } else {
                ins = connection.getInputStream();
            }

            final InputStreamReader inr = new InputStreamReader(ins);
            final BufferedReader br = new BufferedReader(inr);

            readIntoBuffer(br, buffer);

            br.close();
            ins.close();
            inr.close();
            connection.disconnect();
        } catch (IOException e) {
            Log.e(cgSettings.tag, "cgBase.postTweet.IO: " + connection.getResponseCode() + ": "
                    + connection.getResponseMessage() + " ~ " + e.toString());

            final InputStream ins = connection.getErrorStream();
            final StringBuffer buffer = new StringBuffer();
            final InputStreamReader inr = new InputStreamReader(ins);
            final BufferedReader br = new BufferedReader(inr);

            readIntoBuffer(br, buffer);

            br.close();
            ins.close();
            inr.close();
        } catch (Exception e) {
            Log.e(cgSettings.tag, "cgBase.postTweet.inner: " + e.toString());
        }

        connection.disconnect();
    } catch (Exception e) {
        Log.e(cgSettings.tag, "cgBase.postTweet: " + e.toString());
    }
}

From source file:cgeo.geocaching.cgBase.java

private static InputStream getInputstreamFromConnection(HttpURLConnection connection) throws IOException {
    final String encoding = connection.getContentEncoding();
    InputStream ins;//from  w  w w. j ava2s  .c o  m

    if (encoding != null && encoding.equalsIgnoreCase("gzip")) {
        ins = new GZIPInputStream(connection.getInputStream());
    } else if (encoding != null && encoding.equalsIgnoreCase("deflate")) {
        ins = new InflaterInputStream(connection.getInputStream(), new Inflater(true));
    } else {
        ins = connection.getInputStream();
    }
    return ins;
}

From source file:carnero.cgeo.cgBase.java

public void postTweet(cgeoapplication app, cgSettings settings, String status, Double latitude,
        Double longitude) {// ww  w  . j  a  v a2s  .  c  o  m
    if (app == null) {
        return;
    }
    if (settings == null || settings.tokenPublic == null || settings.tokenPublic.length() == 0
            || settings.tokenSecret == null || settings.tokenSecret.length() == 0) {
        return;
    }

    try {
        HashMap<String, String> parameters = new HashMap<String, String>();

        parameters.put("status", status);
        if (latitude != null && longitude != null) {
            parameters.put("lat", String.format("%.6f", latitude));
            parameters.put("long", String.format("%.6f", longitude));
            parameters.put("display_coordinates", "true");
        }

        final String paramsDone = cgOAuth.signOAuth("api.twitter.com", "/1/statuses/update.json", "POST", false,
                parameters, settings.tokenPublic, settings.tokenSecret);

        HttpURLConnection connection = null;
        try {
            final StringBuffer buffer = new StringBuffer();
            final URL u = new URL("http://api.twitter.com/1/statuses/update.json");
            final URLConnection uc = u.openConnection();

            uc.setRequestProperty("Host", "api.twitter.com");

            connection = (HttpURLConnection) uc;
            connection.setReadTimeout(30000);
            connection.setRequestMethod("POST");
            HttpURLConnection.setFollowRedirects(true);
            connection.setDoInput(true);
            connection.setDoOutput(true);

            final OutputStream out = connection.getOutputStream();
            final OutputStreamWriter wr = new OutputStreamWriter(out);
            wr.write(paramsDone);
            wr.flush();
            wr.close();

            Log.i(cgSettings.tag,
                    "Twitter.com: " + connection.getResponseCode() + " " + connection.getResponseMessage());

            InputStream ins;
            final String encoding = connection.getContentEncoding();

            if (encoding != null && encoding.equalsIgnoreCase("gzip")) {
                ins = new GZIPInputStream(connection.getInputStream());
            } else if (encoding != null && encoding.equalsIgnoreCase("deflate")) {
                ins = new InflaterInputStream(connection.getInputStream(), new Inflater(true));
            } else {
                ins = connection.getInputStream();
            }

            final InputStreamReader inr = new InputStreamReader(ins);
            final BufferedReader br = new BufferedReader(inr);

            readIntoBuffer(br, buffer);

            br.close();
            ins.close();
            inr.close();
            connection.disconnect();
        } catch (IOException e) {
            Log.e(cgSettings.tag, "cgBase.postTweet.IO: " + connection.getResponseCode() + ": "
                    + connection.getResponseMessage() + " ~ " + e.toString());

            final InputStream ins = connection.getErrorStream();
            final StringBuffer buffer = new StringBuffer();
            final InputStreamReader inr = new InputStreamReader(ins);
            final BufferedReader br = new BufferedReader(inr);

            readIntoBuffer(br, buffer);

            br.close();
            ins.close();
            inr.close();
        } catch (Exception e) {
            Log.e(cgSettings.tag, "cgBase.postTweet.inner: " + e.toString());
        }

        connection.disconnect();
    } catch (Exception e) {
        Log.e(cgSettings.tag, "cgBase.postTweet: " + e.toString());
    }
}