List of usage examples for java.io PushbackInputStream PushbackInputStream
public PushbackInputStream(InputStream in, int size)
PushbackInputStream with a pushback buffer of the specified size, and saves its argument, the input stream in, for later use. From source file:eu.europeana.uim.sugarcrmclient.internal.ExtendedSaajSoapMessageFactory.java
/** * Checks for the UTF-8 Byte Order Mark, and removes it if present. The SAAJ RI cannot cope with these BOMs. * * @see <a href="http://jira.springframework.org/browse/SWS-393">SWS-393</a> * @see <a href="http://unicode.org/faq/utf_bom.html#22">UTF-8 BOMs</a> *//*from w w w . ja v a2s. c o m*/ private InputStream checkForUtf8ByteOrderMark(InputStream inputStream) throws IOException { PushbackInputStream pushbackInputStream = new PushbackInputStream(new BufferedInputStream(inputStream), 3); byte[] bom = new byte[3]; if (pushbackInputStream.read(bom) != -1) { // check for the UTF-8 BOM, and remove it if there. See SWS-393 if (!(bom[0] == (byte) 0xEF && bom[1] == (byte) 0xBB && bom[2] == (byte) 0xBF)) { pushbackInputStream.unread(bom); } } return pushbackInputStream; }
From source file:com.nominanuda.web.http.HttpCoreHelper.java
public HttpMessage deserialize(InputStream is) throws IOException, HttpException { PushbackInputStream pis = new PushbackInputStream(is, 4); byte[] bb = new byte[4]; Check.illegalargument.assertTrue(4 == pis.read(bb), "premature end of stream"); pis.unread(bb);// ww w . j av a 2s. c om return bb[0] == 'H' && bb[1] == 'T' && bb[2] == 'T' && bb[3] == 'P' ? deserializeResponse(pis) : deserializeRequest(pis); }
From source file:org.apache.abdera.protocol.server.multipart.AbstractMultipartCollectionAdapter.java
private MultipartInputStream getMultipartStream(RequestContext request) throws IOException, ParseException, IllegalArgumentException { String boundary = request.getContentType().getParameter(BOUNDARY_PARAM); if (boundary == null) { throw new IllegalArgumentException("multipart/related stream invalid, boundary parameter is missing."); }//from ww w. j a v a2 s . c o m boundary = "--" + boundary; String type = request.getContentType().getParameter(TYPE_PARAM); if (!(type != null && MimeTypeHelper.isAtom(type))) { throw new ParseException( "multipart/related stream invalid, type parameter should be " + Constants.ATOM_MEDIA_TYPE); } PushbackInputStream pushBackInput = new PushbackInputStream(request.getInputStream(), 2); pushBackInput.unread("\r\n".getBytes()); return new MultipartInputStream(pushBackInput, boundary.getBytes()); }
From source file:org.commoncrawl.hadoop.io.deprecated.ArcFileReader.java
/** * Costructs a new ArcFileReader object with specified block size (for * allocations)/*from www . j a va2s.c om*/ */ public ArcFileReader() { super(_dummyStream, new Inflater(true), _blockSize); // set up buffer queue ... _consumerQueue = new LinkedBlockingQueue<BufferItem>(_bufferQueueSize); // setup the proper stream... super.in = new PushbackInputStream(new InputStream() { ByteBuffer _activeBuffer = null; byte oneByteArray[] = new byte[1]; @Override public int read() throws IOException { if (read(oneByteArray, 0, 1) != -1) { return oneByteArray[0] & 0xff; } return -1; } @Override public int read(byte b[], int off, int len) throws IOException { if (_activeBuffer == null || _activeBuffer.remaining() == 0) { BufferItem nextItem = null; try { // when io timeout is not specified, block indefinitely... if (_ioTimeoutValue == -1) { nextItem = _consumerQueue.take(); } // otherwise wait for specified time on io else { nextItem = _consumerQueue.poll(_ioTimeoutValue, TimeUnit.MILLISECONDS); if (nextItem == null) { throw new IOException("IO Timeout waiting for Buffer"); } } } catch (InterruptedException e) { throw new IOException("Thread Interrupted waiting for Buffer"); } if (nextItem._buffer == null) { _eosReached = true; // EOF CONDITION ... return -1; } else { _activeBuffer = nextItem._buffer; } } final int sizeAvailable = _activeBuffer.remaining(); final int readSize = Math.min(sizeAvailable, len); _activeBuffer.get(b, off, readSize); _streamPos += readSize; return readSize; } }, _blockSize); }
From source file:net.rptools.assets.supplier.AbstractURIAssetSupplier.java
/** * Create an asset and determine its format. * @param id id of asset/*from w ww. ja v a2 s .c o m*/ * @param type type of asset * @param listener listener to inform of (partial) completion * @param assetLength length, if known, or -1 * @param stream stream to read * @return asset * @throws IOException I/O problems */ @ThreadPolicy(ThreadPolicy.ThreadId.ANY) protected AssetImpl newAsset(final String id, final Type type, final AssetListener listener, final int assetLength, final InputStream stream) throws IOException { final InputStream input = new InputStreamInterceptor(getComponent().getFramework(), id, assetLength, stream, listener, getNotifyInterval()); final PushbackInputStream pushbackStream = new PushbackInputStream(input, PUSHBACK_LIMIT); final byte[] firstBytes = new byte[PUSHBACK_LIMIT]; final int actualLength = pushbackStream.read(firstBytes); if (actualLength != -1) { pushbackStream.unread(firstBytes, 0, actualLength); } final ByteArrayInputStream bais = new ByteArrayInputStream(firstBytes); final String mimeType = URLConnection.guessContentTypeFromStream(bais); LOGGER.debug("mimeType={}, actualLength={}", mimeType, actualLength); // read in image AssetImpl asset = null; switch (type) { case IMAGE: asset = new AssetImpl(new Image(pushbackStream)); asset.setMimetype(mimeType); break; case TEXT: asset = new AssetImpl(IOUtils.toString(pushbackStream, StandardCharsets.UTF_8.name())); asset.setMimetype(mimeType); break; default: break; } if (listener != null) { listener.notify(id, asset); } return asset; }
From source file:org.apache.synapse.format.hessian.HessianMessageBuilder.java
/** * Reads the first four bytes of the inputstream to detect whether the message represents a * fault message. Once a fault message has been detected, a property used to mark fault messages * is stored in the Axis2 message context. The implementaton uses a PushbackInputStream to be * able to put those four bytes back at the end of processing. * * @param messageContext the Axis2 message context * @param inputStream the inputstream to read the Hessian message * * @return the wrapped (pushback) input stream * * @throws IOException if an I/O error occurs *///w w w . jav a 2 s.c o m private PushbackInputStream detectAndMarkMessageFault(final MessageContext messageContext, final InputStream inputStream) throws IOException { int bytesToRead = 4; PushbackInputStream pis = new PushbackInputStream(inputStream, bytesToRead); byte[] headerBytes = new byte[bytesToRead]; int n = pis.read(headerBytes); // checking fourth byte for fault marker if (n == bytesToRead) { if (headerBytes[bytesToRead - 1] == HessianConstants.HESSIAN_V1_FAULT_IDENTIFIER || headerBytes[bytesToRead - 1] == HessianConstants.HESSIAN_V2_FAULT_IDENTIFIER) { messageContext.setProperty(BaseConstants.FAULT_MESSAGE, SynapseConstants.TRUE); if (log.isDebugEnabled()) { log.debug("Hessian fault detected, marking in Axis2 message context"); } } pis.unread(headerBytes); } else if (n > 0) { byte[] bytesRead = new byte[n]; System.arraycopy(headerBytes, 0, bytesRead, 0, n); pis.unread(bytesRead); } return pis; }
From source file:org.jahia.utils.zip.legacy.ZipInputStream.java
/** * Creates a new ZIP input stream.//from w ww . j av a2 s .c o m * @param in the actual input stream */ public ZipInputStream(InputStream in) { super(new PushbackInputStream(in, 512), new Inflater(true), 512); usesDefaultInflater = true; if (in == null) { throw new NullPointerException("in is null"); } }
From source file:org.talend.dataprep.schema.xls.XlsUtils.java
/** * read workbook xml spec to get non hidden sheets * * @param inputStream// ww w . j av a 2 s . c om * @return */ public static List<String> getActiveSheetsFromWorkbookSpec(InputStream inputStream) throws XMLStreamException { // If doesn't support mark, wrap up if (!inputStream.markSupported()) { inputStream = new PushbackInputStream(inputStream, 8); } XMLStreamReader streamReader = XML_INPUT_FACTORY.createXMLStreamReader(inputStream); try { /* * * <?xml version="1.0" encoding="UTF-8" standalone="yes"?> <workbook * xmlns="http://schemas.openxmlformats.org/spreadsheetml/2006/main" * xmlns:r="http://schemas.openxmlformats.org/officeDocument/2006/relationships"> <fileVersion appName="xl" * lastEdited="5" lowestEdited="5" rupBuild="9303" codeName="{8C4F1C90-05EB-6A55-5F09-09C24B55AC0B}"/> * <workbookPr codeName="ThisWorkbook" defaultThemeVersion="124226"/> <bookViews> <workbookView xWindow="0" * yWindow="732" windowWidth="22980" windowHeight="8868" firstSheet="1" activeTab="8"/> </bookViews> * <sheets> <sheet name="formdata" sheetId="4" state="hidden" r:id="rId1"/> <sheet name="MONDAY" sheetId="1" * r:id="rId2"/> <sheet name="TUESDAY" sheetId="8" r:id="rId3"/> <sheet name="WEDNESDAY" sheetId="10" * r:id="rId4"/> <sheet name="THURSDAY" sheetId="11" r:id="rId5"/> <sheet name="FRIDAY" sheetId="12" * r:id="rId6"/> <sheet name="SATURDAY" sheetId="13" r:id="rId7"/> <sheet name="SUNDAY" sheetId="14" * r:id="rId8"/> <sheet name="WEEK SUMMARY" sheetId="15" r:id="rId9"/> </sheets> * */ // we only want sheets not with state=hidden List<String> names = new ArrayList<>(); while (streamReader.hasNext()) { switch (streamReader.next()) { case START_ELEMENT: if (StringUtils.equals(streamReader.getLocalName(), "sheet")) { Map<String, String> attributesValues = getAttributesNameValue(streamReader); if (!attributesValues.isEmpty()) { String sheetState = attributesValues.get("state"); if (!StringUtils.equals(sheetState, "hidden")) { String sheetName = attributesValues.get("name"); names.add(sheetName); } } } break; case XMLStreamConstants.END_ELEMENT: if (StringUtils.equals(streamReader.getLocalName(), "sheets")) { // shortcut to stop parsing return names; } break; default: // no op } } return names; } finally { if (streamReader != null) { streamReader.close(); } } }
From source file:com.trsst.server.AbstractMultipartAdapter.java
private MultipartInputStream getMultipartStream(RequestContext request, InputStream inputStream) throws IOException, ParseException, IllegalArgumentException { String boundary = request.getContentType().getParameter(BOUNDARY_PARAM); if (boundary == null) { throw new IllegalArgumentException("multipart/related stream invalid, boundary parameter is missing."); }// ww w .j a v a 2 s .co m boundary = "--" + boundary; String type = request.getContentType().getParameter(TYPE_PARAM); if (!(type != null && MimeTypeHelper.isAtom(type))) { throw new ParseException( "multipart/related stream invalid, type parameter should be " + Constants.ATOM_MEDIA_TYPE); } PushbackInputStream pushBackInput = new PushbackInputStream(inputStream, 2); pushBackInput.unread("\r\n".getBytes()); return new MultipartInputStream(pushBackInput, boundary.getBytes()); }