List of usage examples for java.io RandomAccessFile RandomAccessFile
public RandomAccessFile(File file, String mode) throws FileNotFoundException
From source file:eu.trentorise.smartcampus.feedback.test.TestFeedbackManagers.java
private void writeTestFile(byte[] data) throws IOException { RandomAccessFile f = new RandomAccessFile("src/test/resources/android_copy.jpg", "rw"); f.write(data);/* ww w . j a v a 2s . c o m*/ f.close(); }
From source file:AutoDJ.metaReader.OggIndexer.java
/** * open the file, jump to the comment header and put it in the buffer, * then populate the internal hashmap of metadata * //from w ww .j a v a 2 s .c o m * @param String path */ public void readFile(String path) throws Exception { audioFile = new File(path); raf = new RandomAccessFile(audioFile, "r"); // we need to read that in order to know where to start looking readIdentificationHeader(); // skip over the parts we don't care about readCommentHeader(); int venLen = getIntFromBuff(); raf.skipBytes(venLen); // skip over the vendor string (always the same) numberVorbisComments = getIntFromBuff(); vorbisComments = new HashMap<String, String>(); for (int i = 0; i < numberVorbisComments; i++) { int readLength = getIntFromBuff(); long newFilePos = raf.getFilePointer() + readLength; String content = ""; // take care of pages spanning more than one packet while (concatNext && (newFilePos - headerStart) >= two16) { long packetEnd = headerStart + two16; int readLengthShort = readLength - ((int) (newFilePos - packetEnd)); byte[] contentFirst = new byte[readLengthShort]; raf.read(contentFirst); content += new String(contentFirst); concatNext = false; // now comes another ogg header... //System.out.println("looking for new header at "+raf.getFilePointer() ); readOggHeader(); } byte[] contentRest = new byte[readLength]; raf.read(contentRest); content += new String(contentRest); addToMap(content.getBytes()); } }
From source file:com.ibm.sbt.test.lib.MockSerializer.java
public void writeData(String data) throws IOException { File file = getFile(true);//from w w w . j a v a 2s.co m RandomAccessFile raf = new RandomAccessFile(file, "rw"); // Seek to end of file System.out.println("Writing Record @" + file.length() + " in " + file.getAbsolutePath()); raf.seek((file.length() - "\n</responses>".length())); raf.write(data.getBytes("UTF-8")); raf.write("\n</responses>".getBytes("UTF-8")); }
From source file:interfazGrafica.frmMoverRFC.java
public void mostrarPDF() { String curp = ""; curp = txtCapturaCurp.getText();/*from w w w.ja v a 2 s . c om*/ ArrayList<DocumentoRFC> Docs = new ArrayList<>(); DocumentoRFC sigExp; DocumentoRFC temporal; RFCescaneado tempo = new RFCescaneado(); //tempo.borrartemporal(); sigExp = expe.obtenerArchivosExp(); Nombre_Archivo = sigExp.getNombre(); nombreArchivo.setText(Nombre_Archivo); if (Nombre_Archivo != "") { doc = sigExp; System.out.println("Obtuvo el nombre del archivo."); System.out.println(doc.ruta + doc.nombre); String file = "C:\\escaneos\\Local\\Temporal\\" + doc.nombre; File arch = new File(file); System.out.println("Encontr el siguiente archivo:"); System.out.println(file); System.out.println(""); if (arch.exists()) { System.out.println("El archivo existe"); } try { System.out.println("Entr al try"); RandomAccessFile raf = new RandomAccessFile(file, "r"); System.out.println("Reconoc el archivo" + file); FileChannel channel = raf.getChannel(); System.out.println("Se abrio el canal"); ByteBuffer buf = channel.map(FileChannel.MapMode.READ_ONLY, 0, channel.size()); System.out.println("Channel map"); PDFFile pdffile = new PDFFile(buf); System.out.println("Creando un pdf file"); PDFPage page = pdffile.getPage(0); System.out.println("Obteniendo la pagina con " + 0); panelpdf2.showPage(page); System.out.println("mostrando el panel pdf2"); repaint(); System.gc(); buf.clear(); raf.close(); System.gc(); } catch (Exception ioe) { JOptionPane.showMessageDialog(null, "Error al abrir el archivo"); ioe.printStackTrace(); } } // tempo.borrartemporal(); }
From source file:com.apporiented.hermesftp.streams.RafOutputStream.java
private RandomAccessFile getRaf() throws IOException { if (raf == null) { raf = new RandomAccessFile(file, "rw"); if (offset > 0) { raf.seek(offset);/*from w w w. j a va 2 s. co m*/ } else if (offset < 0) { raf.seek(raf.length()); } } return raf; }
From source file:com.meidusa.venus.benchmark.FileLineRandomData.java
@Override public void init() throws InitialisationException { try {/*from w w w . j a v a 2 s .c o m*/ raf = new RandomAccessFile(file, "r"); size = raf.length() > Integer.MAX_VALUE ? Integer.MAX_VALUE : Long.valueOf(raf.length()).intValue(); System.out.println("file size =" + size); buffer = raf.getChannel().map(MapMode.READ_ONLY, 0, size); buffer.load(); Runtime.getRuntime().addShutdownHook(new Thread() { public void run() { closed = true; MappedByteBufferUtil.unmap(buffer); try { raf.close(); } catch (IOException e) { } } }); } catch (IOException e) { throw new InitialisationException(e); } }
From source file:de.micromata.genome.logging.spi.ifiles.IndexedReader.java
public void selectLogsImpl(Timestamp start, Timestamp end, Integer loglevel, String category, String msg, List<Pair<String, String>> logAttributes, int startRow, int maxRow, List<OrderBy> orderBy, boolean masterOnly, LogEntryCallback callback) throws EndOfSearch, IOException { int skipRows = startRow; int rowsSelected = 0; int indexMaxSize = (int) indexChannel.size(); List<Pair<Integer, Integer>> offsets = indexHeader.getCandiates(start, end, indexByteBuffer, indexMaxSize); if (offsets.isEmpty() == true) { return;//ww w. ja va2 s . c o m } logRandomAccessFile = new RandomAccessFile(logFile, "r"); // logChannel = logRandomAccessFile.getChannel(); // logByteBuffer = logChannel.map(FileChannel.MapMode.READ_ONLY, 0, logChannel.size()); if (orderBy != null && orderBy.isEmpty() == false) { } for (Pair<Integer, Integer> offset : offsets) { if (rowsSelected >= maxRow) { return; } if (apply(offset.getFirst(), loglevel, category, msg, logAttributes) == false) { continue; } if (skipRows > 0) { --skipRows; continue; } callback.onRow(select(offset.getFirst(), masterOnly)); ++rowsSelected; } }
From source file:com.android.volley.toolbox.DownloadNetwork.java
@Override public NetworkResponse performRequest(Request<?> request) throws VolleyError { long requestStart = SystemClock.elapsedRealtime(); while (true) { HttpResponse httpResponse = null; byte[] responseContents = null; Map<String, String> responseHeaders = Collections.emptyMap(); RandomAccessFile acessfile = null; File file = null;/*from www. ja va 2s . c om*/ try { if (!(request instanceof DownOrUpRequest)) { throw new IllegalArgumentException("request object mast be DownOrUpRequest???"); } DownOrUpRequest requestDown = (DownOrUpRequest) request; // Gather headers. Map<String, String> headers = new HashMap<String, String>(); // Download have no cache file = getFile(requestDown); acessfile = new RandomAccessFile(file, "rws"); long length = acessfile.length(); acessfile.seek(length); if (length != 0) { headers.put("Range", "bytes=" + length + "-");// } httpResponse = mHttpStack.performRequest(requestDown, headers); StatusLine statusLine = httpResponse.getStatusLine(); int statusCode = statusLine.getStatusCode(); responseHeaders = convertHeaders(httpResponse.getAllHeaders()); // if the request is slow, log it. long requestLifetime = SystemClock.elapsedRealtime() - requestStart; logSlowRequests(requestLifetime, requestDown, responseContents, statusLine); if (statusCode < 200 || statusCode > 299) { acessfile.close(); throw new IOException(); } // Some responses such as 204s do not have content. We must check. if (httpResponse.getEntity() != null) { responseContents = entityToBytes(httpResponse.getEntity(), requestDown, acessfile); } else { // Add 0 byte response as a way of honestly representing a // no-content request. responseContents = new byte[0]; } acessfile.close(); String re = null; if (!requestDown.isCanceled() || requestDown.getmMaxLength() == requestDown.getmCurLength()) { String path = file.getAbsolutePath(); String re_name = ((DownOrUpRequest) request).getmDownloadName(); if (re_name != null) { re = path.substring(0, path.lastIndexOf('/')) + "/" + re_name; } else { re = path.substring(0, path.lastIndexOf(".")); } File rename = new File(re); boolean result = file.renameTo(rename); if (!result) { Log.e(this.getClass().getName(), "?????:" + rename); throw new IOException( "????????"); } requestDown.setDownloadFile(rename); } else { re = file.getAbsolutePath(); statusCode = 209; } return new NetworkResponse(statusCode, re.getBytes(), responseHeaders, false, SystemClock.elapsedRealtime() - requestStart); } catch (SocketTimeoutException e) { attemptRetryOnException("socket", request, new TimeoutError()); } catch (ConnectTimeoutException e) { attemptRetryOnException("connection", request, new TimeoutError()); } catch (MalformedURLException e) { throw new RuntimeException("Bad URL " + request.getUrl(), e); } catch (IOException e) { if (acessfile != null) { try { acessfile.close(); file.delete(); } catch (IOException e1) { e1.printStackTrace(); } } int statusCode = 0; NetworkResponse networkResponse = null; if (httpResponse != null) { statusCode = httpResponse.getStatusLine().getStatusCode(); } else { throw new NoConnectionError(e); } VolleyLog.e("Unexpected response code %d for %s", statusCode, request.getUrl()); throw new NetworkError(networkResponse); } } }
From source file:at.tuwien.minimee.util.TopParser.java
/** * The process ID is in the last line of the file and looks like follows: * monitored_pid= 6738 /* ww w . j a v a 2 s .c o m*/ * * @param input * @return * @throws Exception */ private Integer findPid() throws Exception { Integer pid = new Integer(0); // we open the file RandomAccessFile f = new RandomAccessFile(file, "r"); try { long size = f.length(); f.seek(size - 2); // we search the file reverse for '=' byte[] b = new byte[1]; for (long i = size - 2; i >= 0; i--) { f.seek(i); f.read(b); if (b[0] == '=') { break; } } String line = f.readLine().trim(); pid = new Integer(line); } finally { // this is important, RandomAccessFile doesn't close the file handle by default! // if close isn't called, you'll get very soon 'too many open files' f.close(); } return pid; }
From source file:com.slytechs.capture.file.editor.FileEditorImpl.java
/** * @param file/*from w ww .j a v a 2s. c o m*/ * @param mode * TODO * @param headerReader * @param order TODO * @param protocolFilter * TODO * @param rawBuilder TODO * @throws IOException */ public FileEditorImpl(final File file, final FileMode mode, final HeaderReader headerReader, ByteOrder order, Filter<ProtocolFilterTarget> protocolFilter, RawIteratorBuilder rawBuilder) throws IOException { this.file = file; this.order = order; this.protocolFilter = protocolFilter; this.rawBuilder = rawBuilder; this.channel = new RandomAccessFile(file, (mode.isContent() || mode.isAppend() ? "rw" : "r")).getChannel(); this.mode = mode; this.headerReader = headerReader; final boolean readonly = !mode.isStructure(); final boolean append = mode.isAppend(); final PartialLoader loader = new PartialFileLoader(channel, mode, headerReader, file); this.edits = new FlexRegion<PartialLoader>(readonly, append, channel.size(), loader); }