List of usage examples for java.io PushbackInputStream PushbackInputStream
public PushbackInputStream(InputStream in)
PushbackInputStream with a 1-byte pushback buffer, and saves its argument, the input stream in, for later use. From source file:org.apache.pig.builtin.Utf8StorageConverter.java
@Override public Map<String, Object> bytesToMap(byte[] b, ResourceFieldSchema fieldSchema) throws IOException { if (b == null) return null; Map<String, Object> map; try {//from w ww. j av a 2 s .com ByteArrayInputStream bis = new ByteArrayInputStream(b); PushbackInputStream in = new PushbackInputStream(bis); map = consumeMap(in, fieldSchema); } catch (IOException e) { LogUtils.warn(this, "Unable to interpret value " + Arrays.toString(b) + " in field being " + "converted to type map, caught ParseException <" + e.getMessage() + "> field discarded", PigWarning.FIELD_DISCARDED_TYPE_CONVERSION_FAILED, mLog); return null; } return map; }
From source file:org.apache.pig.builtin.Utf8StorageConverter.java
@Override public Tuple bytesToTuple(byte[] b, ResourceFieldSchema fieldSchema) throws IOException { if (b == null) return null; Tuple t;/* ww w . j av a 2 s .c om*/ try { ByteArrayInputStream bis = new ByteArrayInputStream(b); PushbackInputStream in = new PushbackInputStream(bis); t = consumeTuple(in, fieldSchema); } catch (IOException e) { LogUtils.warn(this, "Unable to interpret value " + Arrays.toString(b) + " in field being " + "converted to type tuple, caught ParseException <" + e.getMessage() + "> field discarded", PigWarning.FIELD_DISCARDED_TYPE_CONVERSION_FAILED, mLog); return null; } return t; }
From source file:com.temenos.interaction.media.hal.HALProvider.java
/** * Reads a Hypertext Application Language (HAL) representation of * {@link EntityResource} from the input stream. * //from www . ja v a 2s .c o m * @precondition {@link InputStream} contains a valid HAL <resource/> document * @postcondition {@link EntityResource} will be constructed and returned. * @invariant valid InputStream */ @Override public RESTResource readFrom(Class<RESTResource> type, Type genericType, Annotation[] annotations, MediaType mediaType, MultivaluedMap<String, String> httpHeaders, InputStream entityStream) throws IOException, WebApplicationException { /* To detect if the stream is empty (a valid case since an input entity is * sometimes optional), wrap in a PushbackInputStream before passing on */ PushbackInputStream wrappedStream = new PushbackInputStream(entityStream); int firstByte = wrappedStream.read(); uriInfo = new UriInfoImpl(uriInfo); if (firstByte == -1) { // No data provided return null; } else { // There is something in the body, so we will parse it. It is required // to be a valid JSON object. First replace the byte we borrowed. wrappedStream.unread(firstByte); //Parse hal+json into an Entity object Entity entity; try { entity = buildEntityFromHal(wrappedStream, mediaType); } catch (MethodNotAllowedException e) { if (logger.isDebugEnabled()) { logger.debug("Error building the entity.", e); } StringBuilder allowHeader = new StringBuilder(); Set<String> allowedMethods = new HashSet<String>(e.getAllowedMethods()); allowedMethods.add("HEAD"); allowedMethods.add("OPTIONS"); for (String method : allowedMethods) { allowHeader.append(method); allowHeader.append(", "); } Response response = Response.status(405) .header("Allow", allowHeader.toString().substring(0, allowHeader.length() - 2)).build(); throw new WebApplicationException(response); } return new EntityResource<Entity>(entity); } }
From source file:com.temenos.interaction.media.odata.xml.atom.AtomXMLProvider.java
/** * Method to verify if receieved stream has content or its empty * @param stream Stream to check//from w w w . ja va 2 s.c o m * @return verified stream * @throws IOException */ private InputStream verifyContentReceieved(InputStream stream) throws IOException { if (stream == null) { // Check if its null LOGGER.debug("Request stream received as null"); return null; } else if (stream.markSupported()) { // Check stream supports mark/reset // mark() and read the first byte just to check stream.mark(1); final int bytesRead = stream.read(new byte[1]); if (bytesRead != -1) { //stream not empty stream.reset(); // reset the stream as if untouched return stream; } else { //stream empty LOGGER.debug("Request received with empty body"); return null; } } else { // Panic! this stream does not support mark/reset, try with PushbackInputStream as a last resort int bytesRead; PushbackInputStream pbs = new PushbackInputStream(stream); if ((bytesRead = pbs.read()) != -1) { // Contents detected, unread and return pbs.unread(bytesRead); return pbs; } else { // Empty stream detected LOGGER.debug("Request received with empty body!"); return null; } } }
From source file:org.gaul.s3proxy.S3ProxyHandler.java
private static void handleSetContainerAcl(HttpServletRequest request, HttpServletResponse response, InputStream is, BlobStore blobStore, String containerName) throws IOException, S3Exception { ContainerAccess access;/*from ww w . j a v a2s.c om*/ String cannedAcl = request.getHeader("x-amz-acl"); if (cannedAcl == null || "private".equalsIgnoreCase(cannedAcl)) { access = ContainerAccess.PRIVATE; } else if ("public-read".equalsIgnoreCase(cannedAcl)) { access = ContainerAccess.PUBLIC_READ; } else if (CANNED_ACLS.contains(cannedAcl)) { throw new S3Exception(S3ErrorCode.NOT_IMPLEMENTED); } else { response.sendError(HttpServletResponse.SC_BAD_REQUEST); return; } PushbackInputStream pis = new PushbackInputStream(is); int ch = pis.read(); if (ch != -1) { pis.unread(ch); AccessControlPolicy policy = new XmlMapper().readValue(pis, AccessControlPolicy.class); String accessString = mapXmlAclsToCannedPolicy(policy); if (accessString.equals("private")) { access = ContainerAccess.PRIVATE; } else if (accessString.equals("public-read")) { access = ContainerAccess.PUBLIC_READ; } else { throw new S3Exception(S3ErrorCode.NOT_IMPLEMENTED); } } blobStore.setContainerAccess(containerName, access); }
From source file:org.gaul.s3proxy.S3ProxyHandler.java
private static void handleSetBlobAcl(HttpServletRequest request, HttpServletResponse response, InputStream is, BlobStore blobStore, String containerName, String blobName) throws IOException, S3Exception { BlobAccess access;// www . j a v a2s . c o m String cannedAcl = request.getHeader("x-amz-acl"); if (cannedAcl == null || "private".equalsIgnoreCase(cannedAcl)) { access = BlobAccess.PRIVATE; } else if ("public-read".equalsIgnoreCase(cannedAcl)) { access = BlobAccess.PUBLIC_READ; } else if (CANNED_ACLS.contains(cannedAcl)) { throw new S3Exception(S3ErrorCode.NOT_IMPLEMENTED); } else { response.sendError(HttpServletResponse.SC_BAD_REQUEST); return; } PushbackInputStream pis = new PushbackInputStream(is); int ch = pis.read(); if (ch != -1) { pis.unread(ch); AccessControlPolicy policy = new XmlMapper().readValue(pis, AccessControlPolicy.class); String accessString = mapXmlAclsToCannedPolicy(policy); if (accessString.equals("private")) { access = BlobAccess.PRIVATE; } else if (accessString.equals("public-read")) { access = BlobAccess.PUBLIC_READ; } else { throw new S3Exception(S3ErrorCode.NOT_IMPLEMENTED); } } blobStore.setBlobAccess(containerName, blobName, access); }
From source file:org.gaul.s3proxy.S3ProxyHandler.java
private static void handleContainerCreate(HttpServletRequest request, HttpServletResponse response, InputStream is, BlobStore blobStore, String containerName) throws IOException, S3Exception { if (containerName.isEmpty()) { throw new S3Exception(S3ErrorCode.METHOD_NOT_ALLOWED); }/* ww w . j a v a 2 s. c o m*/ if (containerName.length() < 3 || containerName.length() > 255 || containerName.startsWith(".") || containerName.endsWith(".") || validateIpAddress(containerName) || !VALID_BUCKET_FIRST_CHAR.matches(containerName.charAt(0)) || !VALID_BUCKET.matchesAllOf(containerName)) { throw new S3Exception(S3ErrorCode.INVALID_BUCKET_NAME); } String contentLengthString = request.getHeader(HttpHeaders.CONTENT_LENGTH); if (contentLengthString != null) { long contentLength; try { contentLength = Long.parseLong(contentLengthString); } catch (NumberFormatException nfe) { throw new S3Exception(S3ErrorCode.INVALID_ARGUMENT, nfe); } if (contentLength < 0) { throw new S3Exception(S3ErrorCode.INVALID_ARGUMENT); } } String locationString; try (PushbackInputStream pis = new PushbackInputStream(is)) { int ch = pis.read(); if (ch == -1) { // handle empty bodies locationString = null; } else { pis.unread(ch); CreateBucketRequest cbr = new XmlMapper().readValue(pis, CreateBucketRequest.class); locationString = cbr.locationConstraint; } } Location location = null; if (locationString != null) { for (Location loc : blobStore.listAssignableLocations()) { if (loc.getId().equalsIgnoreCase(locationString)) { location = loc; break; } } if (location == null) { throw new S3Exception(S3ErrorCode.INVALID_LOCATION_CONSTRAINT); } } logger.debug("Creating bucket with location: {}", location); CreateContainerOptions options = new CreateContainerOptions(); String acl = request.getHeader("x-amz-acl"); if ("public-read".equalsIgnoreCase(acl)) { options.publicRead(); } boolean created; try { created = blobStore.createContainerInLocation(location, containerName, options); } catch (AuthorizationException ae) { throw new S3Exception(S3ErrorCode.BUCKET_ALREADY_EXISTS, ae); } if (!created) { throw new S3Exception(S3ErrorCode.BUCKET_ALREADY_OWNED_BY_YOU, S3ErrorCode.BUCKET_ALREADY_OWNED_BY_YOU.getMessage(), null, ImmutableMap.of("BucketName", containerName)); } response.addHeader(HttpHeaders.LOCATION, "/" + containerName); }
From source file:com.cohort.util.String2.java
/** * On the command line, this prompts the user a String (which is * not echoed to the screen, so is suitable for passwords). * This is slighly modified from /*from w w w . j ava 2 s. c o m*/ * http://java.sun.com/developer/technicalArticles/Security/pwordmask/ . * * @param prompt * @return the String the user entered * @throws Exception if trouble */ public static final String getPasswordFromSystemIn(String prompt) throws Exception { InputStream in = System.in; //bob added, instead of parameter MaskingThread maskingthread = new MaskingThread(prompt); Thread thread = new Thread(maskingthread); thread.start(); char[] lineBuffer; char[] buf; int i; buf = lineBuffer = new char[128]; int room = buf.length; int offset = 0; int c; try { //bob added loop: while (true) { c = in.read(); if (c == -1 || c == '\n') break loop; if (c == '\r') { int c2 = in.read(); if ((c2 != '\n') && (c2 != -1)) { if (!(in instanceof PushbackInputStream)) { in = new PushbackInputStream(in); } ((PushbackInputStream) in).unread(c2); } else { break loop; } } //if not caught and 'break loop' above... if (--room < 0) { buf = new char[offset + 128]; room = buf.length - offset - 1; System.arraycopy(lineBuffer, 0, buf, 0, offset); Arrays.fill(lineBuffer, ' '); lineBuffer = buf; } buf[offset++] = (char) c; } } catch (Exception e) { } maskingthread.stopMasking(); if (offset == 0) { return ""; //bob changed from null } char[] ret = new char[offset]; System.arraycopy(buf, 0, ret, 0, offset); Arrays.fill(buf, ' '); return new String(ret); //bob added; originally it returned char[] }
From source file:org.openTwoFactor.client.util.TwoFactorClientCommonUtils.java
/** * @param in stream to be used (e.g. System.in) * @param prompt The prompt to display to the user. * @return The password as entered by the user. * @throws IOException //w w w. j a va 2 s . c o m */ public static final char[] retrievePasswordFromStdin(InputStream in, String prompt) throws IOException { MaskingThread maskingthread = new MaskingThread(prompt); Thread thread = new Thread(maskingthread); thread.start(); char[] lineBuffer; char[] buf; buf = lineBuffer = new char[128]; int room = buf.length; int offset = 0; int c; loop: while (true) { switch (c = in.read()) { case -1: case '\n': break loop; case '\r': int c2 = in.read(); if ((c2 != '\n') && (c2 != -1)) { if (!(in instanceof PushbackInputStream)) { in = new PushbackInputStream(in); } ((PushbackInputStream) in).unread(c2); } else { break loop; } default: if (--room < 0) { buf = new char[offset + 128]; room = buf.length - offset - 1; System.arraycopy(lineBuffer, 0, buf, 0, offset); Arrays.fill(lineBuffer, ' '); lineBuffer = buf; } buf[offset++] = (char) c; break; } } maskingthread.stopMasking(); if (offset == 0) { return null; } char[] ret = new char[offset]; System.arraycopy(buf, 0, ret, 0, offset); Arrays.fill(buf, ' '); return ret; }