List of usage examples for java.io BufferedInputStream read
public synchronized int read() throws IOException
read method of InputStream. From source file:com.bjorsond.android.timeline.utilities.Utilities.java
public static File DownloadFromUrl(String imageURL, String fileName) { //this is the downloader method try {/* w w w . j ava 2s. com*/ URL url = new URL(imageURL); //you can write here any link File file = new File(fileName); System.out.println("THE FILENAME IS " + fileName); if (!file.exists()) { long startTime = System.currentTimeMillis(); Log.d("ImageManager", "download begining"); Log.d("ImageManager", "download url:" + url); Log.d("ImageManager", "downloaded file name:" + fileName); File downloadFolder = new File(Utilities.getFilePathFromURL(fileName)); if (!downloadFolder.exists()) { downloadFolder.mkdirs(); } /* Open a connection to that URL. */ URLConnection ucon = url.openConnection(); /* * Define InputStreams to read from the URLConnection. */ InputStream is = ucon.getInputStream(); BufferedInputStream bis = new BufferedInputStream(is); /* * Read bytes to the Buffer until there is nothing more to read(-1). */ ByteArrayBuffer baf = new ByteArrayBuffer(50); int current = 0; while ((current = bis.read()) != -1) { baf.append((byte) current); } /* Convert the Bytes read to a String. */ FileOutputStream fos = new FileOutputStream(file); fos.write(baf.toByteArray()); fos.close(); Log.d("ImageManager", "download ready in" + ((System.currentTimeMillis() - startTime) / 1000) + " sec"); } else { Log.d("ImageManager", "file exists!"); } return file; } catch (IOException e) { Log.d("ImageManager", "Error: " + e); return null; } }
From source file:it.geosolutions.geobatch.destination.common.utils.RemoteBrowserUtils.java
/** * Download a remote file to a local path * /* ww w .ja v a 2 s . c o m*/ * @param fo * @param localPath * @return File with the content * @throws IOException */ public static File downloadFile(FileObject fo, String localPath) throws IOException { // open input stream from the remote file BufferedInputStream is = null; OutputStream os = null; try { is = new BufferedInputStream(fo.getContent().getInputStream()); // open output stream to local file os = new BufferedOutputStream(new FileOutputStream(localPath)); int c; // do copying while ((c = is.read()) != -1) { os.write(c); } } catch (FileSystemException e) { throw new IOException("Can't open input stream", e); } finally { if (os != null) { os.close(); } if (is != null) { is.close(); } } return new File(localPath); }
From source file:com.uf.togathor.db.couchdb.ConnectionHandler.java
/** * Get a File object from an URL/*from w ww . j a v a2 s . c om*/ * * @param url * @param path * @return * @throws IOException * @throws ClientProtocolException * @throws TogathorException * @throws JSONException * @throws IllegalStateException * @throws TogathorForbiddenException */ public static void getFile(String url, File file, String userId, String token) throws IOException, TogathorException, IllegalStateException, JSONException, TogathorForbiddenException { File mFile = file; //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(); }
From source file:Hash.Hash.java
private static long startOfScanJPG(BufferedInputStream in) throws IOException { int c;//w w w . ja v a 2s . c o m long j = startOfImageJPG(in); if (j == -1) return -1; Boolean marker = false; while ((c = in.read()) != -1) { if (marker) //Not a marker(byte stuffing), shouldn't happen in header if (c == 0/* || c==216*/) marker = false; //Start of Quantization table, practically the image //Didn't work else if (c == 219) return j; //Start of Scan else if (c == 0xDA /*218*/) return j; else { // System.out.print("ff" + Integer.toHexString(c) + " "); long jump = 256 * in.read() + in.read() - 2; // System.out.println(Long.toHexString(jump)); do { long skip = in.skip(jump); if (skip < 0) return -1; jump -= skip; } while (jump > 0); j += jump + 2; marker = false; } else { if (c == 0xFF/*255*/) { marker = true; // } else if (c == 0) {//byte stuffing } else { return -1; } } j++; } return -1; }
From source file:com.bristle.javalib.io.FileUtil.java
/************************************************************************** * Skip past all bytes in the specified InputStream, returning the count * of bytes found./*from w w w. j av a 2 s . com*/ *@param streamIn InputStream to read from *@return Count of bytes found in the stream. *@throws IOException When an I/O error occurs reading or writing a * stream. **************************************************************************/ public static long skipEntireStreamReturningCount(InputStream streamIn) throws IOException { // Buffer the input and output for efficiency, to avoid lots of // small I/O operations. // Note: Don't call the read() and write() methods that could do it // all in a single byte-array because we don't want to consume // that caller-specified amount of memory. Better to do it // one byte at a time, but with buffering for efficiency. BufferedInputStream buffIn = new BufferedInputStream(streamIn); long lngCount = 0; for (int intByte = buffIn.read(); intByte > -1; intByte = buffIn.read()) { lngCount++; } return lngCount; }
From source file:de.nrw.hbz.deepzoomer.fileUtil.FileUtil.java
/** * <p><em>Title: Create a temporary File from a file identified by URL</em></p> * <p>Description: Method creates a temporary file from a remote file addressed * an by URL representing the orginal PDF, that should be converted</p> * //from w ww .j a va 2 s. c om * @param fileName * @param url * @return */ public static String saveUrlToFile(String fileName, String url) { File inputFile = new File(Configuration.getTempDirPath() + "/" + fileName); log.debug(inputFile.getAbsolutePath()); InputStream is = null; BufferedInputStream bis = null; BufferedOutputStream bos = null; FileOutputStream fos = null; log.info(url); try { URL inputDocument = new URL(url); is = inputDocument.openStream(); bis = new BufferedInputStream(is); fos = new FileOutputStream(inputFile); bos = new BufferedOutputStream(fos); int i = -1; while ((i = bis.read()) != -1) { bos.write(i); } bos.flush(); } catch (Exception e) { log.error(e); } finally { if (bos != null) { try { bos.close(); } catch (IOException ioExc) { log.error(ioExc); } } if (fos != null) { try { fos.close(); } catch (IOException ioExc) { log.error(ioExc); } } if (bis != null) { try { bis.close(); } catch (IOException ioExc) { log.error(ioExc); } } if (is != null) { try { is.close(); } catch (IOException ioExc) { log.error(ioExc); } } } return inputFile.getName(); }
From source file:br.com.capanema.kers.velocity.util.BuildManagerUtil.java
/** * Increment source code of filePath using template fragment. * // w w w .j a va 2 s . c o m * @param filePath * @param incrementPath * @param incrementPattern * @param dataGroup */ public static void incrementSourceCode(String filePath, String incrementPath, String incrementPattern, String firstAfter, Map<String, String> params, TemplateDataGroup dataGroup) { try { HashMap<String, Object> velocityVariables = new HashMap<String, Object>(); //map for velocity variables velocityVariables.put("data", dataGroup); //conjunto de vriaveis que podem ser usados no template if (params != null && params.size() > 0) { /* for (String name : params.keySet()) { velocityVariables.put("params."+name, params.get(name)); }*/ velocityVariables.put("params", params); } //rodando velocity do incremento TemplateEngine templateEngine = TemplateEngineFactory.getEngine(incrementPath, true); String incrementSource = templateEngine.runFile(incrementPath, velocityVariables); // Create the pattern Pattern pattern = Pattern.compile("[\r\n]*[\t]*" + incrementPattern, Pattern.DOTALL); //o "[\r\n]*" para pegar as quebras de linhas que podem existir no incremento Matcher matcher = pattern.matcher(""); //novo incremento //aqui vai executar o pattern no prprio incremento... se o pattern estiver errado no ir encontrar nada e vai abortar o incremento matcher.reset(incrementSource); Map<String, String[]> mapGroupIncrement = new LinkedHashMap<String, String[]>(); while (matcher.find()) { String[] groups = new String[matcher.groupCount()]; for (int i = 0; i < matcher.groupCount(); i++) { groups[i] = matcher.group(i + 1); } String increment = matcher.group(); //new increment mapGroupIncrement.put(increment, groups); //map increment vs groups } if (mapGroupIncrement.size() == 0) { //no encontrou groups no incremento (usado para as comparaes), aborta return; } //le o arquivo atual FileInputStream inputFilePath = new FileInputStream(filePath); BufferedInputStream bufferedInput = new BufferedInputStream(inputFilePath); StringBuffer filePathContent = new StringBuffer(); int ch = 0; while ((ch = bufferedInput.read()) > -1) { filePathContent.append((char) ch); } inputFilePath.close(); bufferedInput.close(); //procura no arquivo todo pela expresso regular matcher = pattern.matcher(""); matcher.reset(filePathContent); StringBuffer newContentFile = new StringBuffer(); int countMatcher = 0; Map<String, String[]> mapGroupFile = new HashMap<String, String[]>(); while (matcher.find()) { //verifica cada ocorrncia da expresso no arquivo String[] groups = new String[matcher.groupCount()]; //pega os groups "()" do matcher para fazer a comparao com os groups do incremento que est sendo gerado for (int i = 0; i < matcher.groupCount(); i++) { groups[i] = matcher.group(i + 1); } mapGroupFile.put(matcher.group(), groups); //adiciona esse group em uma lista para ser avaliado depois countMatcher++; //isso vai contar onde esta o ltimo matcher } //valida quais incrementos so realmente novos, comparando os groups List<String> newIncrements = new LinkedList<String>(); for (String groupIncrement : mapGroupIncrement.keySet()) { String[] groups1 = mapGroupIncrement.get(groupIncrement); //groups do incremento boolean itemFound = false; for (String groupFile : mapGroupFile.keySet()) { String[] groups2 = mapGroupFile.get(groupFile); //groups do incremento if (ArrayUtil.equals(groups1, groups2)) { //se no arquivo tem o cdigo que est sendo gerado, no precisa adicionar esse incremnto itemFound = true; } } if (!itemFound) { //se no arquivo no tem o cdigo que est sendo gerado, adiciona em um array newIncrements.add(groupIncrement); } } //realiza uma quebra de linha adicional para o primeiro item do incremento, para no ficar na mesma linha do ltimo matcher no arquivo StringBuffer newIncrementSource = new StringBuffer(); int i = 0; for (String incremento : newIncrements) { if (i == 0 && incremento.indexOf("\r\n\r\n") != 0) { //s coloca quebra de linha se precisar newIncrementSource.append("\r\n"); } newIncrementSource.append(incremento); i++; } if (newIncrements.size() > 0) { //no encontrou nenhum increment no arquivo, ento procura pelo firstAfter para inserir o primeiro incremento if (countMatcher == 0 && firstAfter != null && !firstAfter.equals("")) { pattern = Pattern.compile(firstAfter, Pattern.DOTALL); matcher = pattern.matcher(""); matcher.reset(filePathContent); //esse loop s serviu para contar e achar o ltimo matcher. No consegui fazer sem isso :( countMatcher = 0; while (matcher.find()) { //verifica cada ocorrncia da expresso countMatcher++; } } //aqui vou realmente substituir os valores, j sabendo qual a ltima ocorrencia da palavra no arquivo i = 0; matcher.reset(); while (matcher.find()) { //verifica cada ocorrncia da expresso i++; if (countMatcher == i) { //se encontrou a ltima ocorrencia String matcherGroup = matcher.group(); matcher.appendReplacement(newContentFile, matcherGroup + newIncrementSource); //substitui a ultima ocorrencia do firstIncrement } } matcher.appendTail(newContentFile); } //save new file if (newContentFile.length() > 0) { FileUtil.writeFile(filePath, newContentFile.toString()); } } catch (Exception e) { // TODO: handle exception e.printStackTrace(); } }
From source file:de.uzk.hki.da.sb.restfulService.FileUtil.java
/** * <p><em>Title: Create a temporary File from a file identified by URL</em></p> * <p>Description: Method creates a temporary file from a remote file addressed * an by URL representing the orginal PDF, that should be converted</p> * /* w ww . j a v a 2 s.co m*/ * @param fileName * @param url * @return */ public static String saveUrlToFile(String fileName, String url) { String path = fileName.substring(0, fileName.lastIndexOf("/")); File dir = new File(Configuration.getTempDirPath() + "/" + path); dir.mkdirs(); File inputFile = new File(Configuration.getTempDirPath() + "/" + fileName); InputStream is = null; BufferedInputStream bis = null; BufferedOutputStream bos = null; FileOutputStream fos = null; log.info(url); try { URL inputDocument = new URL(url); is = inputDocument.openStream(); bis = new BufferedInputStream(is); fos = new FileOutputStream(inputFile); bos = new BufferedOutputStream(fos); int i = -1; while ((i = bis.read()) != -1) { bos.write(i); } bos.flush(); } catch (Exception e) { log.error(e); } finally { if (bos != null) { try { bos.close(); } catch (IOException ioExc) { log.error(ioExc); } } if (fos != null) { try { fos.close(); } catch (IOException ioExc) { log.error(ioExc); } } if (bis != null) { try { bis.close(); } catch (IOException ioExc) { log.error(ioExc); } } if (is != null) { try { is.close(); } catch (IOException ioExc) { log.error(ioExc); } } } return inputFile.getAbsolutePath(); }
From source file:com.depas.utils.FileUtils.java
/** * Returns content of resource that exists on classpath *//* w ww . j a v a 2s . co m*/ public static String getTextFromResource(String resourceName) throws IOException { ClassLoader cl = Thread.currentThread().getContextClassLoader(); if (cl.getResource(resourceName) == null) { throw new FileNotFoundException( "The resource " + resourceName + " could not be found on the current classpath."); } StringBuffer buf = new StringBuffer(); BufferedInputStream bis = null; try { InputStream is = cl.getResourceAsStream(resourceName); bis = new BufferedInputStream(is); int i; while ((i = bis.read()) != -1) { buf.append((char) i); } } finally { try { bis.close(); } catch (Exception ex) { } } return buf.toString(); }
From source file:com.bristle.javalib.io.FileUtil.java
/************************************************************************** * Copy the binary contents of the specified InputStream to the specified * Writer, up to the specified number of bytes, returning the count of * bytes written./*from w ww . j av a 2s .co m*/ *@param streamIn InputStream to read from *@param writerOut Writer to write to *@param lngMaxBytes Max number of bytes to copy, or lngNO_MAX_BYTES * for unlimited *@return Count of bytes written *@throws TooManyBytesException * When streamIn contains more than intMaxBytes, * resulting in a partially copied binary stream. *@throws IOException When an I/O error occurs reading or writing a * stream or Writer. **************************************************************************/ public static long copyBinaryStreamToWriter(InputStream streamIn, Writer writerOut, long lngMaxBytes) throws TooManyBytesException, IOException { // Note: It seems as though this method should be able to call // copyBinaryStreamToStream() instead of being a nearly // identical copy of the code, but how to convert a Writer // to an OutputStream to pass to copyBinaryStreamToStream()? // Buffer the input and output for efficiency, to avoid lots of // small I/O operations. // Note: Don't call the read() and write() methods that could do it // all in a single byte-array because we don't want to consume // that caller-specified amount of memory. Better to do it // one byte at a time, but with buffering for efficiency. BufferedInputStream buffIn = new BufferedInputStream(streamIn); BufferedWriter buffOut = new BufferedWriter(writerOut); long lngBytesWritten = 0; for (int intByte = buffIn.read(); intByte > -1; intByte = buffIn.read()) { if (lngMaxBytes != lngNO_MAX_BYTES && lngBytesWritten >= lngMaxBytes) { buffOut.flush(); throw new TooManyBytesException("The input stream contains more than " + lngMaxBytes + " bytes. Only " + lngBytesWritten + " bytes were written to the " + "writer", lngBytesWritten); } buffOut.write(intByte); lngBytesWritten++; } buffOut.flush(); return lngBytesWritten; }