List of usage examples for java.io BufferedInputStream read
public int read(byte b[]) throws IOException
b.length bytes of data from this input stream into an array of bytes. From source file:Main.java
/** * Utility method that creates a <code>UIDefaults.LazyValue</code> that * creates an <code>ImageIcon</code> <code>UIResource</code> for the * specified image file name. The image is loaded using * <code>getResourceAsStream</code>, starting with a call to that method * on the base class parameter. If it cannot be found, searching will * continue through the base class' inheritance hierarchy, up to and * including <code>rootClass</code>. * * @param baseClass the first class to use in searching for the resource * @param rootClass an ancestor of <code>baseClass</code> to finish the * search at/*from w w w. j a v a2 s. c o m*/ * @param imageFile the name of the file to be found * @return a lazy value that creates the <code>ImageIcon</code> * <code>UIResource</code> for the image, * or null if it cannot be found */ public static Object makeIcon(final Class<?> baseClass, final Class<?> rootClass, final String imageFile) { return new UIDefaults.LazyValue() { public Object createValue(UIDefaults table) { /* Copy resource into a byte array. This is * necessary because several browsers consider * Class.getResource a security risk because it * can be used to load additional classes. * Class.getResourceAsStream just returns raw * bytes, which we can convert to an image. */ byte[] buffer = java.security.AccessController .doPrivileged(new java.security.PrivilegedAction<byte[]>() { public byte[] run() { try { InputStream resource = null; Class<?> srchClass = baseClass; while (srchClass != null) { resource = srchClass.getResourceAsStream(imageFile); if (resource != null || srchClass == rootClass) { break; } srchClass = srchClass.getSuperclass(); } if (resource == null) { return null; } BufferedInputStream in = new BufferedInputStream(resource); ByteArrayOutputStream out = new ByteArrayOutputStream(1024); byte[] buffer = new byte[1024]; int n; while ((n = in.read(buffer)) > 0) { out.write(buffer, 0, n); } in.close(); out.flush(); return out.toByteArray(); } catch (IOException ioe) { System.err.println(ioe.toString()); } return null; } }); if (buffer == null) { return null; } if (buffer.length == 0) { System.err.println("warning: " + imageFile + " is zero-length"); return null; } return new ImageIconUIResource(buffer); } }; }
From source file:com.pactera.edg.am.metamanager.extractor.util.AntZip.java
/** * ?zip/*from w w w . ja va 2 s .c o m*/ * * @param source * @param basePath * * @param zos */ private static void zipFile(File source, String basePath, ZipOutputStream zos) { File[] files = new File[0]; if (source.isDirectory()) { files = source.listFiles(); } else { files = new File[1]; files[0] = source; } String pathName;// () byte[] buf = new byte[1024]; int length = 0; try { for (File file : files) { if (file.isDirectory()) { pathName = file.getPath().substring(basePath.length() + 1) + "/"; zos.putNextEntry(new ZipEntry(pathName)); zipFile(file, basePath, zos); } else { pathName = file.getPath().substring(basePath.length() + 1); InputStream is = new FileInputStream(file); BufferedInputStream bis = new BufferedInputStream(is); zos.putNextEntry(new ZipEntry(pathName)); while ((length = bis.read(buf)) > 0) { zos.write(buf, 0, length); } is.close(); } } } catch (Exception e) { e.printStackTrace(); } }
From source file:edu.isi.wings.portal.classes.StorageHandler.java
private static void zipAndStream(File dir, ZipOutputStream zos, String prefix) throws Exception { byte bytes[] = new byte[2048]; for (File file : dir.listFiles()) { if (file.isDirectory()) StorageHandler.zipAndStream(file, zos, prefix + file.getName() + "/"); else {/*from ww w . j a v a 2s. c om*/ FileInputStream fis = new FileInputStream(file.getAbsolutePath()); BufferedInputStream bis = new BufferedInputStream(fis); zos.putNextEntry(new ZipEntry(prefix + file.getName())); int bytesRead; while ((bytesRead = bis.read(bytes)) != -1) { zos.write(bytes, 0, bytesRead); } zos.closeEntry(); bis.close(); fis.close(); } } }
From source file:eu.scape_project.spacip.ContainerProcessing.java
/** * Write ARC record content to output stream * * @param nativeArchiveRecord//from ww w .java2 s .co m * @param outputStream Output stream * @throws IOException */ public static void recordToOutputStream(ArchiveRecord nativeArchiveRecord, OutputStream outputStream) throws IOException { ARCRecord arcRecord = (ARCRecord) nativeArchiveRecord; ARCRecordMetaData metaData = arcRecord.getMetaData(); long contentBegin = metaData.getContentBegin(); BufferedInputStream bis = new BufferedInputStream(arcRecord); BufferedOutputStream bos = new BufferedOutputStream(outputStream); byte[] tempBuffer = new byte[BUFFER_SIZE]; int bytesRead; // skip record header bis.skip(contentBegin); while ((bytesRead = bis.read(tempBuffer)) != -1) { bos.write(tempBuffer, 0, bytesRead); } bos.flush(); bis.close(); bos.close(); }
From source file:com.wareninja.opensource.gravatar4android.common.Utils.java
public static byte[] downloadImage_alternative2(String url) throws GenericException { byte[] imageData = null; try {/*from w ww . j a va 2 s. co m*/ URLConnection connection = new URL(url).openConnection(); InputStream stream = connection.getInputStream(); //BufferedInputStream in=new BufferedInputStream(stream);//default 8k buffer BufferedInputStream in = new BufferedInputStream(stream, 10240);// 10k=10240, 2x8k=16384 ByteArrayOutputStream out = new ByteArrayOutputStream(10240); int read; byte[] b = new byte[4096]; while ((read = in.read(b)) != -1) { out.write(b, 0, read); } out.flush(); out.close(); imageData = out.toByteArray(); } catch (FileNotFoundException e) { return null; } catch (Exception e) { Log.w(TAG, "Exc=" + e); throw new GenericException(e); } return imageData; }
From source file:net.vexelon.myglob.utils.Utils.java
/** * Write input stream data to PRIVATE internal storage file. * @param context//from w w w .j a va 2s . com * @param source * @param internalStorageName * @throws IOException */ public static void writeToInternalStorage(Context context, InputStream source, String internalStorageName) throws IOException { FileOutputStream fos = null; try { fos = context.openFileOutput(internalStorageName, Context.MODE_PRIVATE); BufferedOutputStream bos = new BufferedOutputStream(fos); BufferedInputStream bis = new BufferedInputStream(source); byte[] buffer = new byte[4096]; int read = -1; while ((read = bis.read(buffer)) != -1) { bos.write(buffer, 0, read); } bos.flush(); bos.close(); } catch (FileNotFoundException e) { throw new IOException(e.getMessage()); } finally { try { if (fos != null) fos.close(); } catch (IOException e) { } try { if (source != null) source.close(); } catch (IOException e) { } } }
From source file:com.antelink.sourcesquare.client.scan.FileAnalyzer.java
/** * Computes the hash of a given file./*from ww w .jav a 2 s .co m*/ * * @param hashType * Hash that you want to compute. Usually SHA-1 or MD5 (or any * other kind supported by java.security.MessageDigest). * @param fileToAnalyze * Descriptor of the file to analyze. Must be a file otherwise * you will get an exception. * @return the String hexadecimal representation of the file hash. * @throws NoSuchAlgorithmException * if hashType is not a supported hash algorithm * @throws IOException * in case of an I/O error while reading file */ public static String calculateHash(String hashType, File fileToAnalyze) throws NoSuchAlgorithmException, IOException { FileInputStream fis = null; BufferedInputStream inputStream = null; try { logger.debug("Calculating sha1 for file " + fileToAnalyze.getName()); fis = new FileInputStream(fileToAnalyze); inputStream = new BufferedInputStream(fis); MessageDigest digest = MessageDigest.getInstance(hashType); byte[] buffer = new byte[1024 * 1024]; int length = -1; while ((length = inputStream.read(buffer)) != -1) { digest.update(buffer, 0, length); } String hash = new String(Hex.encodeHex(digest.digest())); logger.debug("Sha1 calculated for file " + fileToAnalyze.getName()); return hash; } finally { IOUtils.closeQuietly(inputStream); IOUtils.closeQuietly(fis); } }
From source file:com.DPFaragir.DPFUtils.java
public static String loadFileAsString(String filename) throws java.io.IOException { final int BUFLEN = 1024; BufferedInputStream is = new BufferedInputStream(new FileInputStream(filename), BUFLEN); try {//from w w w . j ava 2 s. c om ByteArrayOutputStream baos = new ByteArrayOutputStream(BUFLEN); byte[] bytes = new byte[BUFLEN]; boolean isUTF8 = false; int read, count = 0; while ((read = is.read(bytes)) != -1) { if (count == 0 && bytes[0] == (byte) 0xEF && bytes[1] == (byte) 0xBB && bytes[2] == (byte) 0xBF) { isUTF8 = true; baos.write(bytes, 3, read - 3); // drop UTF8 bom marker } else { baos.write(bytes, 0, read); } count += read; } return isUTF8 ? new String(baos.toByteArray(), "UTF-8") : new String(baos.toByteArray()); } finally { try { is.close(); } catch (Exception ex) { } } }
From source file:edu.du.penrose.systems.fedoraProxy.web.bus.ProxyController.java
/** * Call the HttpMethod and write all results and status to the HTTP response * object.//ww w. j ava 2 s . co m * * THIS IS THE REQUEST WE NEED TO DUPLICATE GET * /fedora/get/codu:72/ECTD_test_1_access.pdf HTTP/1.1 Host: localhost:8080 * Connection: keep-alive Accept: * application/xml,application/xhtml+xml,text/ * html;q=0.9,text/plain;q=0.8,image/png,*;q=0.5 User-Agent: Mozilla/5.0 * (X11; U; Linux x86_64; en-US) AppleWebKit/534.10 (KHTML, like Gecko) * Chrome/8.0.552.215 Safari/534.10 Accept-Encoding: gzip,deflate,sdch * Accept-Language: en-US,en;q=0.8 Accept-Charset: * ISO-8859-1,utf-8;q=0.7,*;q=0.3 Cookie: fez_list=YjowOw%3D%3D * * ACTUAL SENT GET /fedora/get/codu:72/ECTD_test_1_access.pdf HTTP/1.1 * Accept: * application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q * =0.8,image/png,*;q=0.5 Connection: keep-alive Accept-Encoding: * gzip,deflate,sdch Accept-Language: en-US,en;q=0.8 Accept-Charset: * ISO-8859-1,utf-8;q=0.7,*;q=0.3 : User-Agent: Jakarta * Commons-HttpClient/3.1 Host: localhost:8080 * * @param proxyCommand * @param response * @param authenicate true to set Preemptive authentication */ public static void executeMethod(String proxyCommand, HttpServletResponse response, boolean authenicate) { HttpClient theClient = new HttpClient(); HttpMethod method = new GetMethod(proxyCommand); setDefaultHeaders(method); setAdrCredentials(theClient, authenicate); try { theClient.executeMethod(method); response.setStatus(method.getStatusCode()); // Set the content type, as it comes from the server Header[] headers = method.getResponseHeaders(); for (Header header : headers) { if ("Content-Type".equalsIgnoreCase(header.getName())) { response.setContentType(header.getValue()); } /** * Copy all headers, except Transfer-Encoding which is getting set * set elsewhere. At this point response.containsHeader( * "Transfer-Encoding" ) is false, however it is getting set twice * according to wireshark, therefore we do not set it here. */ if (!header.getName().equalsIgnoreCase("Transfer-Encoding")) { response.setHeader(header.getName(), header.getValue()); } } // Write the body, flush and close InputStream is = method.getResponseBodyAsStream(); BufferedInputStream bis = new BufferedInputStream(is); StringBuffer sb = new StringBuffer(); byte[] bytes = new byte[8192]; // reading as chunk of 8192 bytes int count = bis.read(bytes); while (count != -1 && count <= 8192) { response.getOutputStream().write(bytes, 0, count); count = bis.read(bytes); } bis.close(); response.getOutputStream().flush(); response.getOutputStream().close(); } catch (Exception e) { logger.error(e.getMessage()); } finally { method.releaseConnection(); } }
From source file:com.github.pitzcarraldo.openjpeg.OpenJPEGLoader.java
private static void copyStreamToFile(InputStream pInputStream, File pFile) throws IOException { BufferedInputStream bis = new BufferedInputStream(pInputStream); FileOutputStream fos = new FileOutputStream(pFile.getAbsolutePath()); byte[] buffer = new byte[32768]; int bytesRead = 0; while (bis.available() > 0) { bytesRead = bis.read(buffer); fos.write(buffer, 0, bytesRead); }/* w w w .j a v a2s . c o m*/ bis.close(); fos.close(); pFile.deleteOnExit(); }