List of usage examples for java.io DataInputStream readByte
public final byte readByte() throws IOException
readByte method of DataInput. From source file:edu.cornell.med.icb.goby.alignments.TestSkipTo.java
private void read10(InputStream is, long startOffset) throws IOException { DataInputStream dis = new DataInputStream(is); for (int i = 0; i < 10; i++) { final byte b = dis.readByte(); System.out.println(Byte.toString(b)); if (i == 9) { switch ((int) startOffset) { case 0: assertEquals(2, b);/*from w w w .j a va 2s .c o m*/ break; case 2: assertEquals(-59, b); break; case 9: assertEquals(0, b); break; } } } }
From source file:de.hybris.platform.cuppytrail.impl.DefaultSecureTokenService.java
private void skipPadding(final DataInputStream dataInputStream) throws IOException { final int firstByte = dataInputStream.readUnsignedByte(); // Find number of additional bytes to skip (stored in the bottom 3 bits) final int length = firstByte & 0x0007; for (int i = 0; i < length; i++) { dataInputStream.readByte(); }/*from w w w . j a v a 2 s .com*/ }
From source file:be.ibridge.kettle.job.entry.filecompare.JobEntryFileCompare.java
/** * Check whether 2 files have the same contents. * * @param file1 first file to compare/*w ww . java2 s . c om*/ * @param file2 second file to compare * @return true if files are equal, false if they are not * * @throws IOException upon IO problems */ protected boolean equalFileContents(FileObject file1, FileObject file2) throws IOException { // Really read the contents and do comparisons DataInputStream in1 = new DataInputStream( new BufferedInputStream(KettleVFS.getInputStream(KettleVFS.getFilename(file1)))); DataInputStream in2 = new DataInputStream( new BufferedInputStream(KettleVFS.getInputStream(KettleVFS.getFilename(file2)))); char ch1, ch2; while (in1.available() != 0 && in2.available() != 0) { ch1 = (char) in1.readByte(); ch2 = (char) in2.readByte(); if (ch1 != ch2) return false; } if (in1.available() != in2.available()) { return false; } else { return true; } }
From source file:ubic.gemma.core.analysis.preprocess.batcheffects.AffyScanDateExtractor.java
/** * @return A UNICODE string. A string object is stored as an INT (to store the string length) followed by the WCHAR array * (to store the string contents).//w w w . j a v a 2 s . c om * (http://media.affymetrix.com/support/developer/powertools/changelog/gcos-agcc/generic.html) */ private String readUnicodeString(DataInputStream str) throws IOException { int fieldLength = this.readIntBigEndian(str); // log.info( fieldLength ); byte[] buf = new byte[fieldLength * 2]; // StringBuilder buf = new StringBuilder(); for (int i = 0; i < fieldLength * 2; i++) { buf[i] = str.readByte(); } return new String(buf, "UTF-16"); }
From source file:org.apache.hadoop.hbase.migration.nineteen.regionserver.HStoreFile.java
/** * Reads in an info file/* ww w. java 2s . c o m*/ * * @param filesystem file system * @return The sequence id contained in the info file * @throws IOException */ public long loadInfo(final FileSystem filesystem) throws IOException { Path p = null; if (isReference()) { p = getInfoFilePath(reference.getEncodedRegionName(), this.reference.getFileId()); } else { p = getInfoFilePath(); } long length = filesystem.getFileStatus(p).getLen(); boolean hasMoreThanSeqNum = length > (Byte.SIZE + Bytes.SIZEOF_LONG); DataInputStream in = new DataInputStream(filesystem.open(p)); try { byte flag = in.readByte(); if (flag == INFO_SEQ_NUM) { if (hasMoreThanSeqNum) { flag = in.readByte(); if (flag == MAJOR_COMPACTION) { this.majorCompaction = in.readBoolean(); } } return in.readLong(); } throw new IOException("Cannot process log file: " + p); } finally { in.close(); } }
From source file:org.motechproject.mobile.web.OXDFormDownloadServlet.java
/** * Processes requests for both HTTP <code>GET</code> and <code>POST</code> * methods./* w ww. j av a2s. com*/ * * @param request servlet request * @param response servlet response * @throws ServletException if a servlet-specific error occurs * @throws IOException if an I/O error occurs */ @RequestMapping(method = RequestMethod.POST) public void processRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // Get our raw input and output streams InputStream input = request.getInputStream(); OutputStream output = response.getOutputStream(); // Wrap the streams for compression ZOutputStream zOutput = new ZOutputStream(output, JZlib.Z_BEST_COMPRESSION); // Wrap the streams so we can use logical types DataInputStream dataInput = new DataInputStream(input); DataOutputStream dataOutput = new DataOutputStream(zOutput); try { // Read the common submission data from mobile phone String name = dataInput.readUTF(); String password = dataInput.readUTF(); String serializer = dataInput.readUTF(); String locale = dataInput.readUTF(); byte action = dataInput.readByte(); // TODO: add authentication, possible M6 enhancement log.info("downloading: name=" + name + ", password=" + password + ", serializer=" + serializer + ", locale=" + locale + ", action=" + action); EpihandyXformSerializer serObj = new EpihandyXformSerializer(); ByteArrayOutputStream baos = new ByteArrayOutputStream(); // Perform the action specified by the mobile phone try { if (action == ACTION_DOWNLOAD_STUDY_LIST) { serObj.serializeStudies(baos, studyService.getStudies()); } else if (action == ACTION_DOWNLOAD_USERS_AND_FORMS) { serObj.serializeUsers(baos, userService.getUsers()); int studyId = dataInput.readInt(); String studyName = studyService.getStudyName(studyId); List<String> studyForms = formService.getStudyForms(studyId); serObj.serializeForms(baos, studyForms, studyId, studyName); } } catch (Exception e) { dataOutput.writeByte(RESPONSE_ERROR); throw new ServletException("failed to serialize data", e); } // Write out successful upload response dataOutput.writeByte(RESPONSE_SUCCESS); dataOutput.write(baos.toByteArray()); response.setStatus(HttpServletResponse.SC_OK); } finally { // Should always do this dataOutput.flush(); zOutput.finish(); response.flushBuffer(); } }
From source file:ubic.gemma.core.analysis.preprocess.batcheffects.AffyScanDateExtractor.java
/** * The data is stored as a int, then the array of bytes. */// w w w. j a va2 s . c om private byte[] readBytes(DataInputStream str) throws IOException { int fieldLength = this.readIntBigEndian(str); byte[] result = new byte[fieldLength]; for (int i = 0; i < fieldLength; i++) { if (str.available() == 0) throw new IOException("Reached end of file without string end"); result[i] = str.readByte(); } return result; }
From source file:gobblin.writer.SimpleDataWriterTest.java
/** * Prepend the size to each record without delimiting the record. Each record * should be prepended by the size of that record and the bytes written should * include the prepended bytes./*w ww . ja v a 2 s .c om*/ */ @Test public void testPrependSizeWithoutDelimiter() throws IOException { properties.setProp(ConfigurationKeys.SIMPLE_WRITER_PREPEND_SIZE, true); properties.setProp(ConfigurationKeys.SIMPLE_WRITER_DELIMITER, ""); SimpleDataWriter writer = buildSimpleDataWriter(); byte[] rec1 = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 0 }; byte[] rec2 = { 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25 }; byte[] rec3 = { 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45 }; byte[][] records = { rec1, rec2, rec3 }; writer.write(rec1); writer.write(rec2); writer.write(rec3); writer.close(); writer.commit(); Assert.assertEquals(writer.recordsWritten(), 3); Assert.assertEquals(writer.bytesWritten(), rec1.length + rec2.length + rec3.length + (Long.SIZE / 8 * 3)); File outputFile = new File(writer.getOutputFilePath()); DataInputStream dis = new DataInputStream(new FileInputStream(outputFile)); for (int i = 0; i < 3; i++) { long size = dis.readLong(); Assert.assertEquals(size, records[i].length); for (int j = 0; j < size; j++) { Assert.assertEquals(dis.readByte(), records[i][j]); } } }
From source file:ubic.gemma.core.analysis.preprocess.batcheffects.AffyScanDateExtractor.java
/** * @return A 1 byte character string. A string object is stored as an INT (to store the string length) followed by the CHAR * array (to store the string contents). *//*from ww w .j a v a 2 s .c o m*/ private String readString(DataInputStream str) throws IOException { int fieldLength = this.readIntBigEndian(str); StringBuilder buf = new StringBuilder(); for (int i = 0; i < fieldLength; i++) { if (str.available() == 0) throw new IOException("Reached end of file without string end"); buf.append(new String(new byte[] { str.readByte() })); } return buf.toString(); }
From source file:gobblin.writer.SimpleDataWriterTest.java
/** * Prepend the size to each record and delimit the record. Each record * should be prepended by the size of that record and the bytes written should * include the prepended bytes.//from ww w . ja v a 2 s . c o m */ @Test public void testPrependSizeWithDelimiter() throws IOException { properties.setProp(ConfigurationKeys.SIMPLE_WRITER_PREPEND_SIZE, true); SimpleDataWriter writer = buildSimpleDataWriter(); byte[] rec1 = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 0 }; byte[] rec2 = { 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25 }; byte[] rec3 = { 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45 }; byte[][] records = { rec1, rec2, rec3 }; writer.write(rec1); writer.write(rec2); writer.write(rec3); writer.close(); writer.commit(); Assert.assertEquals(writer.recordsWritten(), 3); Assert.assertEquals(writer.bytesWritten(), rec1.length + rec2.length + rec3.length + (Long.SIZE / 8 * 3) + 3); File outputFile = new File(writer.getOutputFilePath()); DataInputStream dis = new DataInputStream(new FileInputStream(outputFile)); for (int i = 0; i < 3; i++) { long size = dis.readLong(); Assert.assertEquals(size, records[i].length + 1); for (int j = 0; j < size - 1; j++) { Assert.assertEquals(dis.readByte(), records[i][j]); } Assert.assertEquals(dis.readByte(), '\n'); } }