List of usage examples for java.io InputStream skip
public long skip(long n) throws IOException
n bytes of data from this input stream. From source file:org.rhq.core.util.stream.StreamUtil.java
/** * Copies data from the input stream to the output stream. The caller has the responsibility to close them. This * method allows you to copy a byte range from the input stream. The start byte is the index (where the first byte * of the stream is index #0) that starts to be copied. <code>length</code> indicates how many bytes to copy, a * negative length indicates copy everything up to the EOF of the input stream. * * <p>Because this method must leave the given input stream intact in case the caller wants to continue reading from * the input stream (that is, in case the caller wants to read the next byte after the final byte read by this * method), this method will not wrap the input stream with a buffered input stream. Because of this, this method is * less efficient than {@link #copy(InputStream, OutputStream, boolean)}. If you do not care to continue reading * from the input stream after this method completes, it is recommended you wrap your input stream in a * {@link BufferedInputStream} and pass that buffered stream to this method.</p> * * @param input the originating stream that contains the data to be copied * @param output the destination stream where the data should be copied to * @param startByte the first byte to copy from the input stream (byte indexes start at #0) * @param length the number of bytes to copy - if -1, then copy all until EOF * * @return the number of bytes copied from the input to the output stream (usually length, but if length was larger * than the number of bytes in <code>input</code> after the start byte, this return value will be less than * <code>length</code>. * * @throws RuntimeException if failed to read or write the data *///from w w w. java2 s .c o m public static long copy(InputStream input, OutputStream output, long startByte, long length) throws RuntimeException { if (length == 0) { return 0; } if (startByte < 0) { throw new IllegalArgumentException("startByte=" + startByte); } long numBytesCopied = 0; int bufferSize = 32768; try { byte[] buffer = new byte[bufferSize]; if (startByte > 0) { input.skip(startByte); // skips so the next read will read byte #startByte } // ok to cast to int, if length is less then bufferSize it must be able to fit into int int bytesRead = input.read(buffer, 0, ((length < 0) || (length >= bufferSize)) ? bufferSize : (int) length); while (bytesRead > 0) { output.write(buffer, 0, bytesRead); numBytesCopied += bytesRead; length -= bytesRead; bytesRead = input.read(buffer, 0, ((length < 0) || (length >= bufferSize)) ? bufferSize : (int) length); } output.flush(); } catch (IOException ioe) { throw new RuntimeException("Stream data cannot be copied", ioe); } return numBytesCopied; }
From source file:tokyo.northside.io.IOUtils2.java
/** * Compare the contents of two Streams to determine if they are equal or not. * * @param first first input stream./*from w ww .jav a2 s .c o m*/ * @param second second input stream. * @param off compare from offset * @param len comparison length * @return boolean true if content of input streams are equal, true if streams are equal, * otherwise false. * @throws IOException when I/O error occurred. */ public static boolean contentEquals(final InputStream first, final InputStream second, final long off, final long len) throws IOException { boolean result; if (len < 1) { throw new IllegalArgumentException(); } if (off < 0) { throw new IllegalArgumentException(); } if (first.equals(second)) { return false; } try { byte[] firstBytes = new byte[BUF_LEN]; byte[] secondBytes = new byte[BUF_LEN]; if (off > 0) { long totalSkipped = 0; while (totalSkipped < off) { long skipped = first.skip(off - totalSkipped); if (skipped == 0) { throw new IOException("Cannot seek offset bytes."); } totalSkipped += skipped; } totalSkipped = 0; while (totalSkipped < off) { long skipped = second.skip(off - totalSkipped); if (skipped == 0) { throw new IOException("Cannot seek offset bytes."); } totalSkipped += skipped; } } long readLengthTotal = 0; result = true; while (readLengthTotal < len) { int readLength = BUF_LEN; if (len - readLengthTotal < (long) BUF_LEN) { readLength = (int) (len - readLengthTotal); } int lenFirst = first.read(firstBytes, 0, readLength); int lenSecond = second.read(secondBytes, 0, readLength); if (lenFirst != lenSecond) { result = false; break; } if ((lenFirst < 0) && (lenSecond < 0)) { result = true; break; } readLengthTotal += lenFirst; if (lenFirst < firstBytes.length) { byte[] a = Arrays.copyOfRange(firstBytes, 0, lenFirst); byte[] b = Arrays.copyOfRange(secondBytes, 0, lenSecond); if (!Arrays.equals(a, b)) { result = false; break; } } else if (!Arrays.equals(firstBytes, secondBytes)) { result = false; break; } } } catch (RuntimeException e) { throw e; } catch (IOException ioe) { throw ioe; } return result; }
From source file:net.dorokhov.pony.web.server.common.StreamingViewRenderer.java
/** * Copy the given byte range of the given input to the given output. * @param input The input to copy the given range to the given output for. * @param output The output to copy the given range from the given input for. * @param start Start of the byte range. * @param length Length of the byte range. * @throws IOException If something fails at I/O level. *//*from w w w . j a v a2 s . c om*/ private static void copy(InputStream input, OutputStream output, long inputSize, long start, long length) throws IOException { byte[] buffer = new byte[DEFAULT_BUFFER_SIZE]; int read; if (inputSize == length) { // Write full range. while ((read = input.read(buffer)) > 0) { output.write(buffer, 0, read); output.flush(); } } else { //noinspection ResultOfMethodCallIgnored input.skip(start); long toRead = length; while ((read = input.read(buffer)) > 0) { if ((toRead -= read) > 0) { output.write(buffer, 0, read); output.flush(); } else { output.write(buffer, 0, (int) toRead + read); output.flush(); break; } } } }
From source file:tv.phantombot.httpserver.HTTPServerCommon.java
public static void handleYTP(HttpExchange exchange) throws IOException { URI uriData = exchange.getRequestURI(); String uriPath = uriData.getPath(); // Get the Request Method (GET/PUT) String requestMethod = exchange.getRequestMethod(); // Get any data from the body, although, we just discard it, this is required InputStream inputStream = exchange.getRequestBody(); while (inputStream.read() != -1) { inputStream.skip(0x10000); }// w w w.java 2 s . c o m inputStream.close(); if (requestMethod.equals("GET")) { if (uriPath.equals("/ytplayer")) { handleFile("/web/ytplayer/index.html", exchange, false, false); } else { handleFile("/web/" + uriPath, exchange, false, false); } } }
From source file:tv.phantombot.httpserver.HTTPServerCommon.java
public static void handlePanel(HttpExchange exchange) throws IOException { URI uriData = exchange.getRequestURI(); String uriPath = uriData.getPath(); // Get the Request Method (GET/PUT) String requestMethod = exchange.getRequestMethod(); // Get any data from the body, although, we just discard it, this is required InputStream inputStream = exchange.getRequestBody(); while (inputStream.read() != -1) { inputStream.skip(0x10000); }/*from w w w .j ava 2 s .c o m*/ inputStream.close(); if (requestMethod.equals("GET")) { if (uriPath.equals("/panel")) { HTTPServerCommon.handleFile("/web/panel/index.html", exchange, false, false); } else { HTTPServerCommon.handleFile("/web/" + uriPath, exchange, false, false); } } }
From source file:tv.phantombot.httpserver.HTTPServerCommon.java
public static void handleBetaPanel(HttpExchange exchange) throws IOException { URI uriData = exchange.getRequestURI(); String uriPath = uriData.getPath(); // Get the Request Method (GET/PUT) String requestMethod = exchange.getRequestMethod(); // Get any data from the body, although, we just discard it, this is required InputStream inputStream = exchange.getRequestBody(); while (inputStream.read() != -1) { inputStream.skip(0x10000); }/*from ww w.j ava 2 s . c om*/ inputStream.close(); if (requestMethod.equals("GET")) { if (uriPath.equals("/beta-panel")) { HTTPServerCommon.handleFile("/web/beta-panel/index.html", exchange, false, false); } else { HTTPServerCommon.handleFile("/web/" + uriPath, exchange, false, false); } } }
From source file:org.jcodec.samples.mux.AVCMP4Mux.java
private static void mux(CompressedTrack track, File f, List<SeqParameterSet> spsList, List<PictureParameterSet> ppsList) throws IOException { InputStream is = null;/*from w ww.j av a2s. co m*/ try { is = new BufferedInputStream(new FileInputStream(f)); NALUnitReader in = new NALUnitReader(is); InputStream nextNALUnit = null; int i = 0; do { nextNALUnit = in.nextNALUnit(); if (nextNALUnit == null) continue; NALUnit nu = NALUnit.read(nextNALUnit); if (nu.type == NALUnitType.IDR_SLICE || nu.type == NALUnitType.NON_IDR_SLICE) { track.addFrame(new MP4Packet(formPacket(nu, nextNALUnit), i, 25, 1, i, nu.type == NALUnitType.IDR_SLICE, null, i, 0)); i++; } else if (nu.type == NALUnitType.SPS) { spsList.add(SeqParameterSet.read(nextNALUnit)); } else if (nu.type == NALUnitType.PPS) { ppsList.add(PictureParameterSet.read(nextNALUnit)); } else { nextNALUnit.skip(Integer.MAX_VALUE); } } while (nextNALUnit != null); } finally { IOUtils.closeQuietly(is); } }
From source file:org.opendatakit.briefcase.util.AggregateUtils.java
/** * Send a HEAD request to the server to confirm the validity of the URL and * credentials./* w w w . ja v a 2 s . c om*/ * * @param serverInfo * @param actionAddr * @return the confirmed URI of this action. * @throws TransmissionException */ public static final URI testServerConnectionWithHeadRequest(ServerConnectionInfo serverInfo, String actionAddr) throws TransmissionException { String urlString = serverInfo.getUrl(); if (urlString.endsWith("/")) { urlString = urlString + actionAddr; } else { urlString = urlString + "/" + actionAddr; } URI u; try { URL url = new URL(urlString); u = url.toURI(); } catch (MalformedURLException e) { String msg = "Invalid url: " + urlString + " for " + actionAddr + ".\nFailed with error: " + e.getMessage(); if (!urlString.toLowerCase().startsWith("http://") && !urlString.toLowerCase().startsWith("https://")) { msg += "\nDid you forget to prefix the address with 'http://' or 'https://' ?"; } log.warn(msg, e); throw new TransmissionException(msg); } catch (URISyntaxException e) { String msg = "Invalid uri: " + urlString + " for " + actionAddr + ".\nFailed with error: " + e.getMessage(); log.warn(msg, e); throw new TransmissionException(msg); } HttpClient httpClient = WebUtils.createHttpClient(); // get shared HttpContext so that authentication and cookies are retained. HttpClientContext localContext = WebUtils.getHttpContext(); WebUtils.setCredentials(localContext, serverInfo, u); { // we need to issue a head request HttpHead httpHead = WebUtils.createOpenRosaHttpHead(u); // prepare response HttpResponse response = null; try { response = httpClient.execute(httpHead, localContext); int statusCode = response.getStatusLine().getStatusCode(); if (statusCode == 204) { Header[] openRosaVersions = response.getHeaders(WebUtils.OPEN_ROSA_VERSION_HEADER); if (openRosaVersions == null || openRosaVersions.length == 0) { String msg = "Url: " + u.toString() + ", header missing: " + WebUtils.OPEN_ROSA_VERSION_HEADER; log.warn(msg); throw new TransmissionException(msg); } Header[] locations = response.getHeaders("Location"); if (locations != null && locations.length == 1) { try { URL url = new URL(locations[0].getValue()); URI uNew = url.toURI(); if (u.getHost().equalsIgnoreCase(uNew.getHost())) { // trust the server to tell us a new location // ... and possibly to use https instead. u = uNew; // At this point, we may have updated the uri to use https. // This occurs only if the Location header keeps the host name // the same. If it specifies a different host name, we error // out. return u; } else { // Don't follow a redirection attempt to a different host. // We can't tell if this is a spoof or not. String msg = "Starting url: " + u.toString() + " unexpected redirection attempt to a different host: " + uNew.toString(); log.warn(msg); throw new TransmissionException(msg); } } catch (Exception e) { String msg = "Starting url: " + u + " unexpected exception: " + e.getLocalizedMessage(); log.warn(msg, e); throw new TransmissionException(msg); } } else { String msg = "The url: " + u.toString() + " is not ODK Aggregate - status code on Head request: " + statusCode; log.warn(msg); throw new TransmissionException(msg); } } else { // may be a server that does not handle HEAD requests if (response.getEntity() != null) { try { // don't really care about the stream... InputStream is = response.getEntity().getContent(); // read to end of stream... final long count = 1024L; while (is.skip(count) == count) ; is.close(); } catch (Exception e) { log.error("failed to process http stream", e); } } String msg = "The username or password may be incorrect or the url: " + u.toString() + " is not ODK Aggregate - status code on Head request: " + statusCode; log.warn(msg); throw new TransmissionException(msg); } } catch (Exception e) { String msg = "Starting url: " + u.toString() + " unexpected exception: " + e.getLocalizedMessage(); log.warn(msg, e); throw new TransmissionException(msg); } } }
From source file:tv.phantombot.httpserver.HTTPServerCommon.java
public static void handle(HttpExchange exchange, String serverPassword, String serverWebAuth) throws IOException { Boolean hasPassword = false;/*from w w w .ja v a 2 s .c o m*/ Boolean doRefresh = false; Boolean doMarquee = false; String myPassword = ""; String myHdrUser = ""; String myHdrMessage = ""; String[] uriQueryList = null; int marqueeWidth = 420; int msgLength = 40; // Get the path and query string from the URI URI uriData = exchange.getRequestURI(); String uriPath = uriData.getPath(); String uriQuery = uriData.getQuery(); if (uriQuery != null) { uriQueryList = uriQuery.split("&"); } // Get the headers Headers headers = exchange.getRequestHeaders(); // Get the Request Method (GET/PUT) String requestMethod = exchange.getRequestMethod(); // Get any data from the body, although, we just discard it, this is required InputStream inputStream = exchange.getRequestBody(); while (inputStream.read() != -1) { inputStream.skip(0x10000); } inputStream.close(); if (headers.containsKey("password")) { myPassword = headers.getFirst("password"); if (myPassword.equals(serverPassword) || myPassword.equals("oauth:" + serverPassword)) { hasPassword = true; } } if (headers.containsKey("webauth")) { myPassword = headers.getFirst("webauth"); if (myPassword.equals(serverWebAuth)) { hasPassword = true; } } if (headers.containsKey("user")) { myHdrUser = headers.getFirst("user"); } if (headers.containsKey("message")) { myHdrMessage = headers.getFirst("message"); byte[] myHdrMessageBytes = myHdrMessage.getBytes(StandardCharsets.ISO_8859_1); myHdrMessage = new String(myHdrMessageBytes, StandardCharsets.UTF_8); } // Check the uriQueryList for the webauth if (uriQuery != null) { for (String query : uriQueryList) { if (query.startsWith("webauth=")) { String[] webAuthData = query.split("="); myPassword = webAuthData[1]; if (myPassword.equals(serverWebAuth)) { hasPassword = true; } } else if (query.startsWith("refresh")) { doRefresh = true; } else if (query.startsWith("marquee")) { doMarquee = true; } else if (query.startsWith("width")) { String[] splitData = query.split("="); try { marqueeWidth = Integer.parseInt(splitData[1]); } catch (NumberFormatException ex) { marqueeWidth = 420; } } else if (query.startsWith("cutoff")) { String[] splitData = query.split("="); try { msgLength = Integer.parseInt(splitData[1]); } catch (NumberFormatException ex) { msgLength = 40; } } } } if (requestMethod.equals("GET")) { if (uriPath.contains("..")) { sendHTMLError(403, "Invalid URL", exchange); } else if (uriPath.startsWith("/inistore")) { handleIniStore(uriPath, exchange, hasPassword); } else if (uriPath.startsWith("/dbquery")) { handleDBQuery(uriPath, uriQueryList, exchange, hasPassword); } else if (uriPath.startsWith("/addons") && !doRefresh && !doMarquee) { handleFile(uriPath, exchange, hasPassword, true); } else if (uriPath.startsWith("/addons") && doMarquee) { handleRefresh(uriPath, exchange, true, hasPassword, true, marqueeWidth, msgLength); } else if (uriPath.startsWith("/addons") && doRefresh) { handleRefresh(uriPath, exchange, false, hasPassword, true, 0, 0); } else if (uriPath.startsWith("/logs")) { handleFile(uriPath, exchange, hasPassword, true); } else if (uriPath.equals("/playlist")) { handleFile("/web/playlist/index.html", exchange, hasPassword, false); } else if (uriPath.equals("/")) { handleFile("/web/index.html", exchange, hasPassword, false); } else if (uriPath.equals("/alerts")) { handleFile("/web/alerts/index.html", exchange, hasPassword, false); } else if (uriPath.startsWith("/config/audio-hooks")) { handleFile(uriPath, exchange, hasPassword, false); } else if (uriPath.startsWith("/config/gif-alerts")) { handleFile(uriPath, exchange, hasPassword, false); } else if (uriPath.startsWith("/get-lang")) { handleLangFiles("", exchange, hasPassword, true); } else if (uriPath.startsWith("/lang")) { handleLangFiles(headers.getFirst("lang-path"), exchange, hasPassword, true); } else if (uriPath.startsWith("/games")) { handleGamesList(exchange, hasPassword, true); } else { handleFile("/web" + uriPath, exchange, hasPassword, false); } } if (requestMethod.equals("PUT")) { if (myHdrUser.isEmpty() && headers.containsKey("lang-path")) { handlePutRequestLang(headers.getFirst("lang-path"), headers.getFirst("lang-data"), exchange, hasPassword); } else { handlePutRequest(myHdrUser, myHdrMessage, exchange, hasPassword); } } }
From source file:net.sergetk.mobile.lcdui.BitmapFont.java
private static Image getColorizedFontImage(String path, short skip, int color) { InputStream inputStream = BitmapFont.class.getResourceAsStream(path); ByteArrayOutputStream bos = new ByteArrayOutputStream(); byte[] buff = new byte[2048]; int bytesRead = 0; try {// w ww . ja v a 2 s. com inputStream.skip(skip); while ((bytesRead = inputStream.read(buff)) != -1) { bos.write(buff, 0, bytesRead); } return getColorizedImage(bos.toByteArray(), color); } catch (IOException ioe) { } finally { if (inputStream != null) { try { inputStream.close(); } catch (IOException ignoreCloseFailure) { } } if (bos != null) { try { bos.close(); } catch (IOException ignoreCloseFailure) { } } } return null; }