List of usage examples for java.io BufferedInputStream read
public synchronized int read() throws IOException
read method of InputStream. From source file:org.alfresco.selenium.FetchUtil.java
/** * Retrieve file with authentication, using {@link WebDriver} cookie we * keep the session and use HttpClient to download files that requires * user to be authenticated. /*from ww w . j av a 2 s. c o m*/ * @param resourceUrl path to file to download * @param driver {@link WebDriver} * @param output path to output the file * @throws IOException if error */ protected static File retrieveFile(final String resourceUrl, final CloseableHttpClient client, final File output) throws IOException { HttpGet httpGet = new HttpGet(resourceUrl); BufferedOutputStream bos = null; BufferedInputStream bis = null; HttpResponse response = null; try { response = client.execute(httpGet); HttpEntity entity = response.getEntity(); bos = new BufferedOutputStream(new FileOutputStream(output)); bis = new BufferedInputStream(entity.getContent()); int inByte; while ((inByte = bis.read()) != -1) bos.write(inByte); HttpClientUtils.closeQuietly(response); } catch (Exception e) { logger.error("Unable to fetch file " + resourceUrl, e); } finally { if (response != null) { HttpClientUtils.closeQuietly(response); } if (bis != null) { bis.close(); } if (bos != null) { bos.close(); } } return output; }
From source file:de.rub.syssec.saaf.misc.ByteUtils.java
/** * Read a line from an inputstream into a byte buffer. A line might end with a LF or an CRLF. CR's are accepted inside a line and * are not understood as a beginning new line. This should work therefore on Mac OS X, Unix, Linux and Windows. * /* ww w . j a v a2 s. c o m*/ * See http://en.wikipedia.org/wiki/Newline for more. * * @param in the inputstream * @param maxSize the maximum amount of bytes to read until a CRLF or LF is reached, a value of zero or smaller disables a limit (use w/ care!) * @return the buffer where read bytes are appended, this buffer will not contain any CR's or or CRLF's at the end of the array. Null is * returned if EOF is reached. * @throws IOException if something is wrong w/ the stream or the maxSize is reached */ public static byte[] parseLine(BufferedInputStream in, int maxSize) throws IOException { ByteArrayBuffer bab = new ByteArrayBuffer(512); int b; while (true) { if (!(maxSize <= 0 || bab.length() <= maxSize)) { throw new IOException("Maximal bytearraybuffer size of " + maxSize + " exceeded!"); } b = in.read(); if (b == -1) { if (bab.isEmpty()) { // we have nothing read yet and could nothing read, we will therefore return 'null' as this // indicates EOF. return null; } else { // return what we got so far return bab.toByteArray(); } } // CRLF case if (b == '\r') { // check if we find a \n int next = in.read(); if (b == -1) { // EOF; return what we got return bab.toByteArray(); } else if (next == '\n') { // we did in.mark(-1); // rest mark return bab.toByteArray(); // return the line without CRLF } else { // found no CRLF but only a CR and some other byte, so we need to add both to the buffer and proceed bab.append('\r'); bab.append(b); } } // LF case else if (b == '\n') { // we found a LF and therefore the end of a line return bab.toByteArray(); } else { // we just found a byte which is happily appended bab.append(b); } } }
From source file:Hash.Hash.java
private static long startOfImageJPG(BufferedInputStream in) throws IOException { int c;/*from www. j av a2 s .c o m*/ long j = 0; OUTER: while ((c = in.read()) != -1) { j++; switch (c) { case 0: break; case 0xFF://255 c = in.read(); j++; if (c == 0xD8 /*216*/) { break OUTER; } default: return -1; } } return j; }
From source file:com.panet.imeta.job.entries.getpop.JobEntryGetPOP.java
public static void saveFile(String foldername, String filename, InputStream input) throws IOException { // LogWriter log = LogWriter.getInstance(); if (filename == null) { filename = File.createTempFile("xx", ".out").getName(); //$NON-NLS-1$ //$NON-NLS-2$ }//w w w . j a v a2 s . c om // Do no overwrite existing file File file = new File(foldername, filename); for (int i = 0; file.exists(); i++) { file = new File(foldername, filename + i); } FileOutputStream fos = new FileOutputStream(file); BufferedOutputStream bos = new BufferedOutputStream(fos); BufferedInputStream bis = new BufferedInputStream(input); int aByte; while ((aByte = bis.read()) != -1) { bos.write(aByte); } bos.flush(); bos.close(); bis.close(); }
From source file:com.jaspersoft.jasperserver.rest.RESTUtils.java
public static void sendFile(DataSource ds, HttpServletResponse response) { response.setContentType(ds.getContentType()); if (ds.getName() != null && ds.getName().length() > 0) { response.addHeader("Content-Disposition", "attachment; filename=" + ds.getName()); }//from w w w. j a v a 2 s. co m OutputStream outputStream = null; BufferedInputStream bufferedInputStream = null; try { outputStream = response.getOutputStream(); bufferedInputStream = new BufferedInputStream(ds.getInputStream()); int readBytes = 0; while ((readBytes = bufferedInputStream.read()) != -1) { outputStream.write(readBytes); } if (log.isDebugEnabled()) { log.debug("finished sending bytes"); } } catch (IOException ex) { log.error("Error serving a file: " + ex.getMessage(), ex); } finally { if (outputStream != null) try { outputStream.close(); } catch (Exception ex) { } if (bufferedInputStream != null) try { bufferedInputStream.close(); } catch (Exception ex) { } } }
From source file:net.vexelon.bgrates.Utils.java
/** * Downloads a file given URL to specified destination * @param url/*w ww . j a va 2s .c om*/ * @param destFile * @return */ //public static boolean downloadFile(Context context, String url, String destFile) { public static boolean downloadFile(Context context, String url, File destFile) { //Log.v(TAG, "@downloadFile()"); //Log.d(TAG, "Downloading " + url); boolean ret = false; BufferedInputStream bis = null; FileOutputStream fos = null; InputStream is = null; try { URL myUrl = new URL(url); URLConnection connection = myUrl.openConnection(); is = connection.getInputStream(); bis = new BufferedInputStream(is); ByteArrayBuffer baf = new ByteArrayBuffer(1024); int n = 0; while ((n = bis.read()) != -1) baf.append((byte) n); // save to internal storage //Log.v(TAG, "Saving downloaded file ..."); fos = new FileOutputStream(destFile); //context.openFileOutput(destFile, context.MODE_PRIVATE); fos.write(baf.toByteArray()); fos.close(); //Log.v(TAG, "File saved successfully."); ret = true; } catch (Exception e) { //Log.e(TAG, "Error while downloading and saving file !", e); } finally { try { if (fos != null) fos.close(); } catch (IOException e) { } try { if (bis != null) bis.close(); } catch (IOException e) { } try { if (is != null) is.close(); } catch (IOException e) { } } return ret; }
From source file:Hash.Hash.java
private static byte[] startOfScanTiff(File file, BufferedInputStream in) throws IOException { in.mark(0);//from ww w . ja v a2 s. co m int c; long j = 0; Boolean endian = null; c = in.read(); if (c == 73) { if (in.read() == 73) endian = true; } else if (c == 77) { if (in.read() == 77) endian = false; } if (endian == null) { return null; } long tiffCheck = readEndianValue(in, 2, endian); if (tiffCheck != 42) { return null; } ifdCursor cursor = new ifdCursor(file, endian, readEndianValue(in, 4, endian)); if (cursor.getPointer() == -1) { return null; } if (cursor.getPointer() == 0) { return null; } return readIFDirectory(cursor, in); }
From source file:com.cloverstudio.spikademo.couchdb.ConnectionHandler.java
/** * Get a File object from an URL//w ww. j a v a 2s .c om * * @param url * @param path * @return */ public static void getFile(String url, File file, String userId, String token) { File mFile = file; try { //URL mUrl = new URL(url); // you can write here any link InputStream is = httpGetRequest(url, userId); BufferedInputStream bis = new BufferedInputStream(is); ByteArrayBuffer baf = new ByteArrayBuffer(20000); int current = 0; while ((current = bis.read()) != -1) { baf.append((byte) current); } /* Convert the Bytes read to a String. */ FileOutputStream fos = new FileOutputStream(mFile); fos.write(baf.toByteArray()); fos.flush(); fos.close(); is.close(); } catch (Exception e) { Logger.error(TAG + "getFile", "Error retrieving file: ", e); } }
From source file:fr.paris.lutece.plugins.upload.web.UploadJspBean.java
/** * Copies data from an input stream to an output stream. * @param inStream The input stream/*from w ww. ja va 2 s. c om*/ * @param outStream The output stream * @throws IOException If an I/O error occurs */ private static void copyStream(InputStream inStream, OutputStream outStream) throws IOException { BufferedInputStream inBufferedStream = new BufferedInputStream(inStream); BufferedOutputStream outBufferedStream = new BufferedOutputStream(outStream); int nByte = 0; while ((nByte = inBufferedStream.read()) > -1) { outBufferedStream.write(nByte); } outBufferedStream.close(); inBufferedStream.close(); }
From source file:com.aurel.track.util.emailHandling.MailReader.java
/** * Saves attachment/*from w ww .j av a 2 s . co m*/ */ public static File saveFile(String filename, InputStream input) throws IOException { // in case there is no filename, create temporary file and use its // filename instead String tempDir = HandleHome.getTrackplus_Home() + File.separator + HandleHome.DATA_DIR + File.separator + "temp"; File dirTem = new File(tempDir); if (!dirTem.exists()) { dirTem.mkdirs(); } File file; if (filename == null) { file = File.createTempFile("xxxxxx", ".out", dirTem); } else { // Existing files will not be overwritten file = new File(dirTem, filename); } int i = 0; while (file.exists()) { // Extend filename by number so it is unique file = new File(dirTem, i + filename); i++; } // BufferedOutputStream for writing into the file BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(file)); // BufferedInputStream for reading the parts BufferedInputStream bis = new BufferedInputStream(input); // read data and write to output stream int aByte; while ((aByte = bis.read()) != -1) { bos.write(aByte); } // release resources bos.flush(); bos.close(); bis.close(); return file; }