Example usage for org.apache.http.util ByteArrayBuffer length

Introduction

In this page you can find the example usage for org.apache.http.util ByteArrayBuffer length.

Prototype

public int length() 

Source Link

Usage

From source file:crawler.Page.java

/**
 * Read contents from an entity, with a specified maximum. This is a replacement of
 * EntityUtils.toByteArray because that function does not impose a maximum size.
 *
 * @param entity The entity from which to read
 * @param maxBytes The maximum number of bytes to read
 * @return A byte array containing maxBytes or fewer bytes read from the entity
 *
 * @throws IOException Thrown when reading fails for any reason
 *///w  w w . j a  va 2 s . c o  m
protected byte[] toByteArray(HttpEntity entity, int maxBytes) throws IOException {
    if (entity == null) {
        return new byte[0];
    }
    try (InputStream is = entity.getContent()) {
        int size = (int) entity.getContentLength();
        int readBufferLength = size;

        if (readBufferLength <= 0) {
            readBufferLength = 4096;
        }
        // in case when the maxBytes is less than the actual page size
        readBufferLength = Math.min(readBufferLength, maxBytes);

        // We allocate the buffer with either the actual size of the entity (if available)
        // or with the default 4KiB if the server did not return a value to avoid allocating
        // the full maxBytes (for the cases when the actual size will be smaller than maxBytes).
        ByteArrayBuffer buffer = new ByteArrayBuffer(readBufferLength);

        byte[] tmpBuff = new byte[4096];
        int dataLength;

        while ((dataLength = is.read(tmpBuff)) != -1) {
            if (maxBytes > 0 && (buffer.length() + dataLength) > maxBytes) {
                truncated = true;
                dataLength = maxBytes - buffer.length();
            }
            buffer.append(tmpBuff, 0, dataLength);
            if (truncated) {
                break;
            }
        }
        return buffer.toByteArray();
    }
}

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From source file:com.android.idtt.http.client.multipart.HttpMultipart.java

private void doWriteTo(final HttpMultipartMode mode, final OutputStream out,
        MultipartEntity.CallBackInfo callBackInfo, boolean writeContent) throws IOException {

    callBackInfo.pos = 0;//from ww w .java 2  s .com

    ByteArrayBuffer boundary = encode(this.charset, getBoundary());
    for (FormBodyPart part : this.parts) {
        if (!callBackInfo.doCallBack(true)) {
            return;
        }
        writeBytes(TWO_DASHES, out);
        callBackInfo.pos += TWO_DASHES.length();
        writeBytes(boundary, out);
        callBackInfo.pos += boundary.length();
        writeBytes(CR_LF, out);
        callBackInfo.pos += CR_LF.length();

        MinimalFieldHeader header = part.getHeader();

        switch (mode) {
        case STRICT:
            for (MinimalField field : header) {
                writeField(field, out);
                callBackInfo.pos += encode(MIME.DEFAULT_CHARSET, field.getName() + field.getBody()).length()
                        + FIELD_SEP.length() + CR_LF.length();
            }
            break;
        case BROWSER_COMPATIBLE:
            // Only write Content-Disposition
            // Use content charset
            MinimalField cd = part.getHeader().getField(MIME.CONTENT_DISPOSITION);
            writeField(cd, this.charset, out);
            callBackInfo.pos += encode(this.charset, cd.getName() + cd.getBody()).length() + FIELD_SEP.length()
                    + CR_LF.length();
            String filename = part.getBody().getFilename();
            if (filename != null) {
                MinimalField ct = part.getHeader().getField(MIME.CONTENT_TYPE);
                writeField(ct, this.charset, out);
                callBackInfo.pos += encode(this.charset, ct.getName() + ct.getBody()).length()
                        + FIELD_SEP.length() + CR_LF.length();
            }
            break;
        }
        writeBytes(CR_LF, out);
        callBackInfo.pos += CR_LF.length();

        if (writeContent) {
            ContentBody body = part.getBody();
            body.setCallBackInfo(callBackInfo);
            body.writeTo(out);
        }
        writeBytes(CR_LF, out);
        callBackInfo.pos += CR_LF.length();
    }
    writeBytes(TWO_DASHES, out);
    callBackInfo.pos += TWO_DASHES.length();
    writeBytes(boundary, out);
    callBackInfo.pos += boundary.length();
    writeBytes(TWO_DASHES, out);
    callBackInfo.pos += TWO_DASHES.length();
    writeBytes(CR_LF, out);
    callBackInfo.pos += CR_LF.length();
    callBackInfo.doCallBack(true);
}

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From source file:cn.isif.util_plus.http.client.multipart.HttpMultipart.java

private void doWriteTo(final HttpMultipartMode mode, final OutputStream out,
        MultipartEntity.CallBackInfo callBackInfo, boolean writeContent) throws IOException {

    callBackInfo.pos = 0;// w  ww .  ja  va2s .c o m

    ByteArrayBuffer boundary = encode(this.charset, getBoundary());
    for (FormBodyPart part : this.parts) {
        if (!callBackInfo.doCallBack(true)) {
            throw new InterruptedIOException("cancel");
        }
        writeBytes(TWO_DASHES, out);
        callBackInfo.pos += TWO_DASHES.length();
        writeBytes(boundary, out);
        callBackInfo.pos += boundary.length();
        writeBytes(CR_LF, out);
        callBackInfo.pos += CR_LF.length();

        MinimalFieldHeader header = part.getHeader();

        switch (mode) {
        case STRICT:
            for (MinimalField field : header) {
                writeField(field, out);
                callBackInfo.pos += encode(MIME.DEFAULT_CHARSET, field.getName() + field.getBody()).length()
                        + FIELD_SEP.length() + CR_LF.length();
            }
            break;
        case BROWSER_COMPATIBLE:
            // Only write Content-Disposition
            // Use content charset
            MinimalField cd = header.getField(MIME.CONTENT_DISPOSITION);
            writeField(cd, this.charset, out);
            callBackInfo.pos += encode(this.charset, cd.getName() + cd.getBody()).length() + FIELD_SEP.length()
                    + CR_LF.length();
            String filename = part.getBody().getFilename();
            if (filename != null) {
                MinimalField ct = header.getField(MIME.CONTENT_TYPE);
                writeField(ct, this.charset, out);
                callBackInfo.pos += encode(this.charset, ct.getName() + ct.getBody()).length()
                        + FIELD_SEP.length() + CR_LF.length();
            }
            break;
        default:
            break;
        }
        writeBytes(CR_LF, out);
        callBackInfo.pos += CR_LF.length();

        if (writeContent) {
            ContentBody body = part.getBody();
            body.setCallBackInfo(callBackInfo);
            body.writeTo(out);
        }
        writeBytes(CR_LF, out);
        callBackInfo.pos += CR_LF.length();
    }
    writeBytes(TWO_DASHES, out);
    callBackInfo.pos += TWO_DASHES.length();
    writeBytes(boundary, out);
    callBackInfo.pos += boundary.length();
    writeBytes(TWO_DASHES, out);
    callBackInfo.pos += TWO_DASHES.length();
    writeBytes(CR_LF, out);
    callBackInfo.pos += CR_LF.length();
    callBackInfo.doCallBack(true);
}

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From source file:com.dongfang.net.http.client.multipart.HttpMultipart.java

private void doWriteTo(final HttpMultipartMode mode, final OutputStream out,
        MultipartEntity.CallBackInfo callBackInfo, boolean writeContent) throws IOException {

    callBackInfo.pos = 0;/* w  w w.ja v  a  2  s  .  co m*/

    ByteArrayBuffer boundary = encode(this.charset, getBoundary());
    for (FormBodyPart part : this.parts) {
        if (!callBackInfo.doCallBack(true)) {
            throw new InterruptedIOException("stop");
        }
        writeBytes(TWO_DASHES, out);
        callBackInfo.pos += TWO_DASHES.length();
        writeBytes(boundary, out);
        callBackInfo.pos += boundary.length();
        writeBytes(CR_LF, out);
        callBackInfo.pos += CR_LF.length();

        MinimalFieldHeader header = part.getHeader();

        switch (mode) {
        case STRICT:
            for (MinimalField field : header) {
                writeField(field, out);
                callBackInfo.pos += encode(MIME.DEFAULT_CHARSET, field.getName() + field.getBody()).length()
                        + FIELD_SEP.length() + CR_LF.length();
            }
            break;
        case BROWSER_COMPATIBLE:
            // Only write Content-Disposition
            // Use content charset
            MinimalField cd = header.getField(MIME.CONTENT_DISPOSITION);
            writeField(cd, this.charset, out);
            callBackInfo.pos += encode(this.charset, cd.getName() + cd.getBody()).length() + FIELD_SEP.length()
                    + CR_LF.length();
            String filename = part.getBody().getFilename();
            if (filename != null) {
                MinimalField ct = header.getField(MIME.CONTENT_TYPE);
                writeField(ct, this.charset, out);
                callBackInfo.pos += encode(this.charset, ct.getName() + ct.getBody()).length()
                        + FIELD_SEP.length() + CR_LF.length();
            }
            break;
        default:
            break;
        }
        writeBytes(CR_LF, out);
        callBackInfo.pos += CR_LF.length();

        if (writeContent) {
            ContentBody body = part.getBody();
            body.setCallBackInfo(callBackInfo);
            body.writeTo(out);
        }
        writeBytes(CR_LF, out);
        callBackInfo.pos += CR_LF.length();
    }
    writeBytes(TWO_DASHES, out);
    callBackInfo.pos += TWO_DASHES.length();
    writeBytes(boundary, out);
    callBackInfo.pos += boundary.length();
    writeBytes(TWO_DASHES, out);
    callBackInfo.pos += TWO_DASHES.length();
    writeBytes(CR_LF, out);
    callBackInfo.pos += CR_LF.length();
    callBackInfo.doCallBack(true);
}

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From source file:com.bitfable.ammocache.download.UrlImageDownloader.java

@Override
protected Bitmap download(String key, WeakReference<ImageView> imageViewRef) {
    URL url;// w w  w  .  j av  a 2s . c o  m

    try {
        url = new URL(key);
    } catch (MalformedURLException e) {
        Log.e(TAG, "url is malformed: " + key, e);
        return null;
    }

    HttpURLConnection urlConnection;
    try {
        urlConnection = (HttpURLConnection) url.openConnection();
    } catch (IOException e) {
        Log.e(TAG, "error while opening connection", e);
        return null;
    }

    Bitmap bitmap = null;
    InputStream httpStream = null;
    int contentLength;
    int bytesDownloaded = 0;
    try {
        contentLength = urlConnection.getContentLength();
        httpStream = new FlushedInputStream(urlConnection.getInputStream());
        ByteArrayBuffer baf = new ByteArrayBuffer(BYTE_ARRAY_BUFFER_INCREMENTAL_SIZE);
        byte[] buffer = new byte[BYTE_ARRAY_BUFFER_INCREMENTAL_SIZE];
        while (!isCancelled(imageViewRef)) {
            int incrementalRead = httpStream.read(buffer);
            if (incrementalRead == -1) {
                break;
            }
            bytesDownloaded += incrementalRead;
            if (contentLength > 0 || (bytesDownloaded > 0 && bytesDownloaded == contentLength)) {
                int progress = bytesDownloaded * 100 / contentLength;
                publishProgress(progress, imageViewRef);
            }
            baf.append(buffer, 0, incrementalRead);
        }

        if (isCancelled(imageViewRef))
            return null;

        bitmap = BitmapFactory.decodeByteArray(baf.toByteArray(), 0, baf.length());
    } catch (IOException e) {
        Log.e(TAG, "error creating InputStream", e);
    } finally {
        if (urlConnection != null)
            urlConnection.disconnect();
        if (httpStream != null) {
            try {
                httpStream.close();
            } catch (IOException e) {
                Log.e(TAG, "IOException while closing http stream", e);
            }
        }
    }

    return bitmap;
}

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From source file:org.mycard.net.network.LoadListener.java

protected void handleData(Message msg) {
    int len = msg.arg1;
    int totalLen = msg.arg2;
    ByteArrayBuffer buffer = (ByteArrayBuffer) msg.obj;
    try {/*from   w  ww.j  av a2s .  c o m*/
        synchronized (mDataBuffer) {
            mDataBuffer.append(buffer.buffer(), 0, buffer.length());
        }
    } catch (OutOfMemoryError error) {
        cancel();

        HttpTaskEventArg arg = new HttpTaskEventArg();
        arg.mErrorId = HttpTaskListener.ERROR_OUT_OF_MEMORY;
        mTaskListener.onHttpTaskEvent(m_taskid, HttpTaskListener.HTTPTASK_EVENT_FAIL, arg);
        return;
    }

    if (mTaskListener != null) {
        if ((mStatusCode >= 301 && mStatusCode <= 303) || mStatusCode == 307) {
            // 
        } else {
            HttpTaskEventArg arg = new HttpTaskEventArg();
            arg.mlen = len;
            arg.mTotal = totalLen;
            arg.buffer = buffer.buffer();
            mTaskListener.onHttpTaskEvent(m_taskid, HttpTaskListener.HTTPTASK_EVENT_DATARECIVE, arg);
        }
    }
}

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From source file:com.download.cache.image.UrlImageDownloader.java

@Override
protected Bitmap download(String key, WeakReference<ImageView> imageViewRef) {
    URL url;/*from  ww  w.j  ava  2  s  .  c  o  m*/

    try {
        url = new URL(key);
    } catch (MalformedURLException e) {
        Log.e(TAG, "url is malformed: " + key, e);
        return null;
    }

    HttpURLConnection urlConnection;
    try {
        urlConnection = (HttpURLConnection) url.openConnection();
    } catch (IOException e) {
        Log.e(TAG, "error while opening connection", e);
        return null;
    }

    Bitmap bitmap = null;
    InputStream httpStream = null;
    int contentLength;
    int bytesDownloaded = 0;
    try {

        contentLength = urlConnection.getContentLength();
        if (contentLength != -1) {

            httpStream = new FlushedInputStream(urlConnection.getInputStream());

            ByteArrayBuffer baf = new ByteArrayBuffer(BYTE_ARRAY_BUFFER_INCREMENTAL_SIZE);
            byte[] buffer = new byte[BYTE_ARRAY_BUFFER_INCREMENTAL_SIZE];
            while (!isCancelled(imageViewRef)) {
                int incrementalRead = httpStream.read(buffer);
                if (incrementalRead == -1) {
                    break;
                }
                bytesDownloaded += incrementalRead;
                if (contentLength > 0 || (bytesDownloaded > 0 && bytesDownloaded == contentLength)) {
                    int progress = bytesDownloaded * 100 / contentLength;
                    publishProgress(progress, imageViewRef);
                }
                baf.append(buffer, 0, incrementalRead);
            }

            if (isCancelled(imageViewRef))
                return null;

            bitmap = BitmapFactory.decodeByteArray(baf.toByteArray(), 0, baf.length());
        } else { // steam 
            //             byte[] imageBuf;
            //             byte[] buf = new byte[BYTE_ARRAY_BUFFER_INCREMENTAL_SIZE];
            //              int bufferLeft = buf.length;
            //              int offset = 0;
            //              int result = 0;
            //              
            //              BufferedInputStream bis = new BufferedInputStream(url.openStream());
            //              
            //              InputStream is = url.openStream();
            //              outer: do {
            //                  while (bufferLeft > 0) {
            //                      result = is.read(buf, offset, bufferLeft);
            //                      if (result < 0) {
            //                          // we're done
            //                          break outer;
            //                      }
            //                      offset += result;
            //                      bufferLeft -= result;
            //                   }
            //                   // resize
            //                   bufferLeft = BYTE_ARRAY_BUFFER_INCREMENTAL_SIZE;
            //                   int newSize = buf.length + BYTE_ARRAY_BUFFER_INCREMENTAL_SIZE;
            //                   byte[] newBuf = new byte[newSize];
            //                   System.arraycopy(buf, 0, newBuf, 0, buf.length);
            //                   buf = newBuf;
            //               } while (true);
            //               imageBuf = new byte[offset];
            //               System.arraycopy(buf, 0, imageBuf, 0, offset);
            //               
            //               bitmap = BitmapFactory.decodeByteArray(imageBuf, 0, imageBuf.length);
        }

    } catch (IOException e) {
        Log.e(TAG, "error creating InputStream", e);
    } finally {
        if (urlConnection != null)
            urlConnection.disconnect();
        if (httpStream != null) {
            try {
                httpStream.close();
            } catch (IOException e) {
                Log.e(TAG, "IOException while closing http stream", e);
            }
        }
    }

    return bitmap;
}

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From source file:com.vuze.android.remote.SessionInfo.java

public void openTorrent(final Activity activity, final String name, InputStream is) {
    try {//from  w w w. j  ava2  s . co m
        int available = is.available();
        if (available <= 0) {
            available = 32 * 1024;
        }
        ByteArrayBuffer bab = new ByteArrayBuffer(available);

        boolean ok = AndroidUtils.readInputStreamIfStartWith(is, bab, new byte[] { 'd' });
        if (!ok) {
            String s;
            if (Build.VERSION.SDK_INT == Build.VERSION_CODES.KITKAT && bab.length() == 0) {
                s = activity.getResources().getString(R.string.not_torrent_file_kitkat, name);
            } else {
                s = activity.getResources().getString(R.string.not_torrent_file, name,
                        Math.max(bab.length(), 5));
            }
            AndroidUtils.showDialog(activity, R.string.add_torrent, Html.fromHtml(s));
            return;
        }
        final String metainfo = Base64Encode.encodeToString(bab.buffer(), 0, bab.length());
        openTorrentWithMetaData(activity, name, metainfo);
    } catch (IOException e) {
        if (AndroidUtils.DEBUG) {
            e.printStackTrace();
        }
        VuzeEasyTracker.getInstance(activity).logError(e);
    } catch (OutOfMemoryError em) {
        VuzeEasyTracker.getInstance(activity).logError(em);
        AndroidUtils.showConnectionError(activity, "Out of Memory", true);
    }
}

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