List of usage examples for java.nio.channels WritableByteChannel close
public void close() throws IOException;
From source file:eu.ensure.aging.AgingSimulator.java
public static void main(String[] args) { Options options = new Options(); options.addOption("n", "flip-bit-in-name", true, "Flip bit in first byte of name of first file"); options.addOption("u", "flip-bit-in-uname", true, "Flip bit in first byte of username of first file"); options.addOption("c", "update-checksum", true, "Update header checksum (after prior bit flips)"); Properties properties = new Properties(); CommandLineParser parser = new PosixParser(); try {/*from ww w. j a va 2 s. c om*/ CommandLine line = parser.parse(options, args); // if (line.hasOption("flip-bit-in-name")) { properties.put("flip-bit-in-name", line.getOptionValue("flip-bit-in-name")); } else { // On by default (if not explicitly de-activated above) properties.put("flip-bit-in-name", "true"); } // if (line.hasOption("flip-bit-in-uname")) { properties.put("flip-bit-in-uname", line.getOptionValue("flip-bit-in-uname")); } else { properties.put("flip-bit-in-uname", "false"); } // if (line.hasOption("update-checksum")) { properties.put("update-checksum", line.getOptionValue("update-checksum")); } else { properties.put("update-checksum", "false"); } String[] fileArgs = line.getArgs(); if (fileArgs.length < 1) { printHelp(options, System.err); System.exit(1); } String srcPath = fileArgs[0]; File srcAIP = new File(srcPath); if (!srcAIP.exists()) { String info = "The source path does not locate a file: " + srcPath; System.err.println(info); System.exit(1); } if (srcAIP.isDirectory()) { String info = "The source path locates a directory, not a file: " + srcPath; System.err.println(info); System.exit(1); } if (!srcAIP.canRead()) { String info = "Cannot read source file: " + srcPath; System.err.println(info); System.exit(1); } boolean doReplace = false; File destAIP = null; if (fileArgs.length > 1) { String destPath = fileArgs[1]; destAIP = new File(destPath); if (destAIP.exists()) { String info = "The destination path locates an existing file: " + destPath; System.err.println(info); System.exit(1); } } else { doReplace = true; try { destAIP = File.createTempFile("tmp-aged-aip-", ".tar"); } catch (IOException ioe) { String info = "Failed to create temporary file: "; info += ioe.getMessage(); System.err.println(info); System.exit(1); } } String info = "Age simulation\n"; info += " Reading from " + srcAIP.getName() + "\n"; if (doReplace) { info += " and replacing it's content"; } else { info += " Writing to " + destAIP.getName(); } System.out.println(info); // InputStream is = null; OutputStream os = null; try { is = new BufferedInputStream(new FileInputStream(srcAIP)); os = new BufferedOutputStream(new FileOutputStream(destAIP)); simulateAging(srcAIP.getName(), is, os, properties); } catch (FileNotFoundException fnfe) { info = "Could not locate file: " + fnfe.getMessage(); System.err.println(info); } finally { try { if (null != os) os.close(); if (null != is) is.close(); } catch (IOException ignore) { } } // if (doReplace) { File renamedOriginal = new File(srcAIP.getName() + "-backup"); srcAIP.renameTo(renamedOriginal); ReadableByteChannel rbc = null; WritableByteChannel wbc = null; try { rbc = Channels.newChannel(new FileInputStream(destAIP)); wbc = Channels.newChannel(new FileOutputStream(srcAIP)); FileIO.fastChannelCopy(rbc, wbc); } catch (FileNotFoundException fnfe) { info = "Could not locate temporary output file: " + fnfe.getMessage(); System.err.println(info); } catch (IOException ioe) { info = "Could not copy temporary output file over original AIP: " + ioe.getMessage(); System.err.println(info); } finally { try { if (null != wbc) wbc.close(); if (null != rbc) rbc.close(); destAIP.delete(); } catch (IOException ignore) { } } } } catch (ParseException pe) { String info = "Failed to parse command line: " + pe.getMessage(); System.err.println(info); printHelp(options, System.err); System.exit(1); } }
From source file:com.intuit.tank.service.impl.v1.report.FileReader.java
/** * Gets a StreamingOutput from the passedin file from start to end or from beginning to end if start is greater than * end. if a negative number is passed, it will get the last n lines of the file. If 0 is passed it will return the * entire file./*w w w .j a v a 2 s . com*/ * * @param total * * @return a StreamingOutput */ public static StreamingOutput getFileStreamingOutput(final File f, long total, String start) { long l = 0; if (start != null) { try { l = Long.parseLong(start); // num lines to get from end if (l < 0) { l = getStartChar(f, Math.abs(l), total); } } catch (Exception e) { LOG.error("Error parsing start " + start + ": " + e); } } final long to = l > total ? 0 : total; final long from = l; StreamingOutput streamer = new StreamingOutput() { @SuppressWarnings("resource") @Override public void write(final OutputStream output) throws IOException, WebApplicationException { final FileChannel inputChannel = new FileInputStream(f).getChannel(); final WritableByteChannel outputChannel = Channels.newChannel(output); try { inputChannel.transferTo(from, to, outputChannel); } finally { // closing the channels inputChannel.close(); outputChannel.close(); } } }; LOG.debug("returning data from " + from + " - " + to + " of total " + total); return streamer; }
From source file:IOUtilities.java
/** * Copy ALL available data from one stream into another * @param in//from w w w. j a va 2 s. c om * @param out * @throws IOException */ public static void copy(InputStream in, OutputStream out) throws IOException { ReadableByteChannel source = Channels.newChannel(in); WritableByteChannel target = Channels.newChannel(out); ByteBuffer buffer = ByteBuffer.allocate(16 * 1024); while (source.read(buffer) != -1) { buffer.flip(); // Prepare the buffer to be drained while (buffer.hasRemaining()) { target.write(buffer); } buffer.clear(); // Empty buffer to get ready for filling } source.close(); target.close(); }
From source file:org.wso2.carbon.identity.common.testng.MockInitialContextFactory.java
/** * Copies a resource inside a jar to external file within a directory. * Then returns the created file./*from www . ja v a 2 s. c o m*/ * * @param relativeFilePath * @param clazz * @return * @throws TestCreationException */ private static File copyTempFile(String relativeFilePath, Class clazz) throws TestCreationException { URL url = clazz.getClassLoader().getResource(relativeFilePath); if (url == null) { throw new TestCreationException("Could not find a resource on the classpath : " + relativeFilePath); } InputStream inputStream; try { inputStream = url.openStream(); ReadableByteChannel inputChannel = Channels.newChannel(inputStream); File tempFile = File.createTempFile("tmp_", "_registry.sql"); FileOutputStream fos = new FileOutputStream(tempFile); WritableByteChannel targetChannel = fos.getChannel(); //Transfer data from input channel to output channel ((FileChannel) targetChannel).transferFrom(inputChannel, 0, Short.MAX_VALUE); inputStream.close(); targetChannel.close(); fos.close(); return tempFile; } catch (IOException e) { throw new TestCreationException( "Could not copy the file content to temp file from : " + relativeFilePath); } }
From source file:byps.BWire.java
/** * Writes a ByteBuffer to an OutputStream. * Closes the OutputStream.//www .j ava2 s . com * @param buf * @param os * @throws IOException */ public static void bufferToStream(ByteBuffer buf, boolean gzip, OutputStream os) throws IOException { if (gzip) { os = new GZIPOutputStream(os); } WritableByteChannel wch = null; try { wch = Channels.newChannel(os); wch.write(buf); } finally { if (wch != null) wch.close(); } }
From source file:com.thinkberg.webdav.Util.java
public static long copyStream(final InputStream is, final OutputStream os) throws IOException { ReadableByteChannel rbc = Channels.newChannel(is); WritableByteChannel wbc = Channels.newChannel(os); int bytesWritten = 0; final ByteBuffer buffer = ByteBuffer.allocateDirect(16 * 1024); while (rbc.read(buffer) != -1) { buffer.flip();//from w w w .j a va2s . c o m bytesWritten += wbc.write(buffer); buffer.compact(); } buffer.flip(); while (buffer.hasRemaining()) { bytesWritten += wbc.write(buffer); } rbc.close(); wbc.close(); return bytesWritten; }
From source file:org.esxx.Response.java
public static void writeObject(Object object, ContentType ct, OutputStream out) throws IOException { if (object == null) { return;/* w w w . j a va2 s . c o m*/ } // Unwrap wrapped objects object = JS.toJavaObject(object); // Convert complex types to primitive types if (object instanceof Node) { ESXX esxx = ESXX.getInstance(); if (ct.match("message/rfc822")) { try { String xml = esxx.serializeNode((Node) object); org.esxx.xmtp.XMTPParser xmtpp = new org.esxx.xmtp.XMTPParser(); javax.mail.Message msg = xmtpp.convertMessage(new StringReader(xml)); object = new ByteArrayOutputStream(); msg.writeTo(new FilterOutputStream((OutputStream) object) { @Override public void write(int b) throws IOException { if (b == '\r') { return; } else if (b == '\n') { out.write('\r'); out.write('\n'); } else { out.write(b); } } }); } catch (javax.xml.stream.XMLStreamException ex) { throw new ESXXException("Failed to serialize Node as message/rfc822:" + ex.getMessage(), ex); } catch (javax.mail.MessagingException ex) { throw new ESXXException("Failed to serialize Node as message/rfc822:" + ex.getMessage(), ex); } } else { object = esxx.serializeNode((Node) object); } } else if (object instanceof Scriptable) { if (ct.match("application/x-www-form-urlencoded")) { String cs = Parsers.getParameter(ct, "charset", "UTF-8"); object = StringUtil.encodeFormVariables(cs, (Scriptable) object); } else if (ct.match("text/csv")) { object = jsToCSV(ct, (Scriptable) object); } else { object = jsToJSON(object).toString(); } } else if (object instanceof byte[]) { object = new ByteArrayInputStream((byte[]) object); } else if (object instanceof File) { object = new FileInputStream((File) object); } // Serialize primitive types if (object instanceof ByteArrayOutputStream) { ByteArrayOutputStream bos = (ByteArrayOutputStream) object; bos.writeTo(out); } else if (object instanceof ByteBuffer) { // Write result as-is to output stream WritableByteChannel wbc = Channels.newChannel(out); ByteBuffer bb = (ByteBuffer) object; bb.rewind(); while (bb.hasRemaining()) { wbc.write(bb); } wbc.close(); } else if (object instanceof InputStream) { IO.copyStream((InputStream) object, out); } else if (object instanceof Reader) { // Write stream as-is, using the specified charset (if present) String cs = Parsers.getParameter(ct, "charset", "UTF-8"); Writer ow = new OutputStreamWriter(out, cs); IO.copyReader((Reader) object, ow); } else if (object instanceof String) { // Write string as-is, using the specified charset (if present) String cs = Parsers.getParameter(ct, "charset", "UTF-8"); Writer ow = new OutputStreamWriter(out, cs); ow.write((String) object); ow.flush(); } else if (object instanceof RenderedImage) { Iterator<ImageWriter> i = ImageIO.getImageWritersByMIMEType(ct.getBaseType()); if (!i.hasNext()) { throw new ESXXException("No ImageWriter available for " + ct.getBaseType()); } ImageWriter writer = i.next(); writer.setOutput(ImageIO.createImageOutputStream(out)); writer.write((RenderedImage) object); } else { throw new UnsupportedOperationException("Unsupported object class type: " + object.getClass()); } }
From source file:com.pavlospt.rxfile.RxFile.java
private static File fileFromUri(Context context, Uri data) throws Exception { DocumentFile file = DocumentFile.fromSingleUri(context, data); String fileType = file.getType(); String fileName = file.getName(); File fileCreated;//from w w w. j a va 2 s .c o m ParcelFileDescriptor parcelFileDescriptor = context.getContentResolver().openFileDescriptor(data, Constants.READ_MODE); InputStream inputStream = new FileInputStream(parcelFileDescriptor.getFileDescriptor()); logDebug("External cache dir:" + context.getExternalCacheDir()); String filePath = context.getExternalCacheDir() + Constants.FOLDER_SEPARATOR + fileName; String fileExtension = fileName.substring((fileName.lastIndexOf('.')) + 1); String mimeType = getMimeType(fileName); logDebug("From Google Drive guessed type: " + getMimeType(fileName)); logDebug("Extension: " + fileExtension); if (fileType.equals(Constants.APPLICATION_PDF) && mimeType == null) { filePath += "." + Constants.PDF_EXTENSION; } if (!createFile(filePath)) { return new File(filePath); } ReadableByteChannel from = Channels.newChannel(inputStream); WritableByteChannel to = Channels.newChannel(new FileOutputStream(filePath)); fastChannelCopy(from, to); from.close(); to.close(); fileCreated = new File(filePath); logDebug("Path for made file: " + fileCreated.getAbsolutePath()); return fileCreated; }
From source file:com.xxxifan.devbox.library.rxfile.RxFile.java
private static File fileFromUri(Context context, Uri data) throws Exception { DocumentFile file = DocumentFile.fromSingleUri(context, data); String fileType = file.getType(); String fileName = file.getName(); File fileCreated;// w ww. ja v a2 s. c o m ParcelFileDescriptor parcelFileDescriptor = context.getContentResolver().openFileDescriptor(data, Constants.READ_MODE); InputStream inputStream = new FileInputStream(parcelFileDescriptor.getFileDescriptor()); Log.e(TAG, "External cache dir:" + context.getExternalCacheDir()); String filePath = context.getExternalCacheDir() + Constants.FOLDER_SEPARATOR + fileName; String fileExtension = fileName.substring((fileName.lastIndexOf('.')) + 1); String mimeType = getMimeType(fileName); Log.e(TAG, "From Drive guessed type: " + getMimeType(fileName)); Log.e(TAG, "Extension: " + fileExtension); if (fileType.equals(Constants.APPLICATION_PDF) && mimeType == null) { filePath += "." + Constants.PDF_EXTENSION; } if (!createFile(filePath)) { return new File(filePath); } ReadableByteChannel from = Channels.newChannel(inputStream); WritableByteChannel to = Channels.newChannel(new FileOutputStream(filePath)); fastChannelCopy(from, to); from.close(); to.close(); fileCreated = new File(filePath); Log.e(TAG, "Path for made file: " + fileCreated.getAbsolutePath()); return fileCreated; }
From source file:cn.tc.ulife.platform.msg.http.util.HttpUtil.java
/** * ??// w w w .j av a2 s.c o m * * @param is * @return * @throws IOException */ public static String readStreamAsStr(InputStream is) throws IOException { ByteArrayOutputStream bos = new ByteArrayOutputStream(); WritableByteChannel dest = Channels.newChannel(bos); ReadableByteChannel src = Channels.newChannel(is); ByteBuffer bb = ByteBuffer.allocate(4096); while (src.read(bb) != -1) { bb.flip(); dest.write(bb); bb.clear(); } src.close(); dest.close(); return new String(bos.toByteArray(), Constants.ENCODING); }