List of usage examples for java.io DataOutputStream writeInt
public final void writeInt(int v) throws IOException
int to the underlying output stream as four bytes, high byte first. From source file:org.openmrs.module.odkconnector.serialization.web.PatientWebConnectorTest.java
@Test public void serialize_shouldDisplayAllPatientInformation() throws Exception { // compose url URL u = new URL(SERVER_URL + "/module/odkconnector/download/patients.form"); // setup http url connection HttpURLConnection connection = (HttpURLConnection) u.openConnection(); connection.setDoOutput(true);/* w w w . j a va 2s . c o m*/ connection.setRequestMethod("POST"); connection.setConnectTimeout(10000); connection.setReadTimeout(10000); connection.addRequestProperty("Content-type", "application/octet-stream"); // write auth details to connection DataOutputStream outputStream = new DataOutputStream(new GZIPOutputStream(connection.getOutputStream())); outputStream.writeUTF("admin"); outputStream.writeUTF("test"); outputStream.writeBoolean(true); outputStream.writeInt(2); outputStream.writeInt(1); outputStream.close(); DataInputStream inputStream = new DataInputStream(new GZIPInputStream(connection.getInputStream())); Integer responseStatus = inputStream.readInt(); ByteArrayOutputStream arrayOutputStream = new ByteArrayOutputStream(); int count = 0; byte[] buffer = new byte[1024]; while ((count = inputStream.read(buffer)) > 0) { arrayOutputStream.write(buffer, 0, count); } arrayOutputStream.close(); inputStream.close(); File file = new File("/home/nribeka/connector.data"); FileOutputStream fos = new FileOutputStream(file); fos.write(arrayOutputStream.toByteArray()); fos.close(); inputStream = new DataInputStream(new FileInputStream(file)); if (responseStatus == HttpURLConnection.HTTP_OK) { // total number of patients Integer patientCounter = inputStream.readInt(); System.out.println("Patient Counter: " + patientCounter); for (int j = 0; j < patientCounter; j++) { System.out.println("=================Patient====================="); System.out.println("Patient Id: " + inputStream.readInt()); System.out.println("Family Name: " + inputStream.readUTF()); System.out.println("Middle Name: " + inputStream.readUTF()); System.out.println("Last Name: " + inputStream.readUTF()); System.out.println("Gender: " + inputStream.readUTF()); System.out.println("Birth Date: " + inputStream.readUTF()); System.out.println("Identifier: " + inputStream.readUTF()); System.out.println("Patients: " + j + " out of " + patientCounter); } Integer obsCounter = inputStream.readInt(); System.out.println("Observation Counter: " + obsCounter); for (int j = 0; j < obsCounter; j++) { System.out.println("==================Observation================="); System.out.println("Patient Id: " + inputStream.readInt()); System.out.println("Concept Name: " + inputStream.readUTF()); byte type = inputStream.readByte(); if (type == ObsSerializer.TYPE_STRING) System.out.println("Value: " + inputStream.readUTF()); else if (type == ObsSerializer.TYPE_INT) System.out.println("Value: " + inputStream.readInt()); else if (type == ObsSerializer.TYPE_DOUBLE) System.out.println("Value: " + inputStream.readDouble()); else if (type == ObsSerializer.TYPE_DATE) System.out.println("Value: " + inputStream.readUTF()); System.out.println("Time: " + inputStream.readUTF()); System.out.println("Obs: " + j + " out of: " + obsCounter); } Integer formCounter = inputStream.readInt(); System.out.println("Form Counter: " + formCounter); for (int j = 0; j < formCounter; j++) { System.out.println("==================Observation================="); System.out.println("Patient Id: " + inputStream.readInt()); System.out.println("Concept Name: " + inputStream.readUTF()); byte type = inputStream.readByte(); if (type == ObsSerializer.TYPE_STRING) System.out.println("Value: " + inputStream.readUTF()); else if (type == ObsSerializer.TYPE_INT) System.out.println("Value: " + inputStream.readInt()); else if (type == ObsSerializer.TYPE_DOUBLE) System.out.println("Value: " + inputStream.readDouble()); else if (type == ObsSerializer.TYPE_DATE) System.out.println("Value: " + inputStream.readUTF()); System.out.println("Time: " + inputStream.readUTF()); System.out.println("Form: " + j + " out of: " + formCounter); } } inputStream.close(); }
From source file:net.sf.keystore_explorer.crypto.x509.X509ExtensionSet.java
/** * Save X.509 extension set.// w ww .ja v a2 s . c om * * @param os * Stream to save to * @throws IOException * If an I/O problem occurred */ public void save(OutputStream os) throws IOException { DataOutputStream dos = null; try { dos = new DataOutputStream(os); dos.writeLong(FILE_MAGIC_NUMBER); dos.writeInt(FILE_VERSION); saveExtensions(criticalExtensions, dos); saveExtensions(nonCriticalExtensions, dos); } finally { IOUtils.closeQuietly(dos); } }
From source file:CoolBarExamples.java
private void saveState(CoolBar coolBar, File file) throws IOException { DataOutputStream out = new DataOutputStream(new FileOutputStream(file)); try {/* www . j a va2 s.c o m*/ // Orders of items. System.out.println("Item order: " + intArrayToString(coolBar.getItemOrder())); int[] order = coolBar.getItemOrder(); out.writeInt(order.length); for (int i = 0; i < order.length; i++) out.writeInt(order[i]); // Wrap indices. System.out.println("Wrap indices: " + intArrayToString(coolBar.getWrapIndices())); int[] wrapIndices = coolBar.getWrapIndices(); out.writeInt(wrapIndices.length); for (int i = 0; i < wrapIndices.length; i++) out.writeInt(wrapIndices[i]); // Sizes. Point[] sizes = coolBar.getItemSizes(); out.writeInt(sizes.length); for (int i = 0; i < sizes.length; i++) { out.writeInt(sizes[i].x); out.writeInt(sizes[i].y); } } finally { out.close(); } }
From source file:org.outerrim.snippad.ui.swt.dnd.WikiTransfer.java
/** * Converts an array of WikiWords into a byte array. * * @param words/*w ww . j av a 2s. c o m*/ * Array of WikiWords * @return byte array representation of the WikiWord array */ private byte[] toByteArray(final WikiWord[] words) { /* * Transfer data is an array of words. Serialized version is: (int) * number of words (WikiWord) word 1 (WikiWord) word 2 ... repeat as * needed see writeWikiWord() for the (WikiWord) format */ ByteArrayOutputStream byteOut = new ByteArrayOutputStream(); DataOutputStream out = new DataOutputStream(byteOut); byte[] bytes = null; try { // write out number of markers LOG.debug("Writing " + words.length + " words to byte array"); out.writeInt(words.length); for (int i = 0; i < words.length; ++i) { writeWikiWord((WikiWord) words[i], out); } out.close(); bytes = byteOut.toByteArray(); } catch (IOException e) { LOG.debug("toByteArray()", e); // when in doubt send nothing } return bytes; }
From source file:org.apache.hadoop.hbase.io.hfile.TestChecksum.java
protected void testChecksumCorruptionInternals(boolean useTags) throws IOException { for (Compression.Algorithm algo : COMPRESSION_ALGORITHMS) { for (boolean pread : new boolean[] { false, true }) { LOG.info("testChecksumCorruption: Compression algorithm: " + algo + ", pread=" + pread); Path path = new Path(TEST_UTIL.getDataTestDir(), "blocks_v2_" + algo); FSDataOutputStream os = fs.create(path); HFileContext meta = new HFileContextBuilder().withCompression(algo).withIncludesMvcc(true) .withIncludesTags(useTags).withChecksumType(HFile.DEFAULT_CHECKSUM_TYPE) .withBytesPerCheckSum(HFile.DEFAULT_BYTES_PER_CHECKSUM).build(); HFileBlock.Writer hbw = new HFileBlock.Writer(null, meta); long totalSize = 0; for (int blockId = 0; blockId < 2; ++blockId) { DataOutputStream dos = hbw.startWriting(BlockType.DATA); for (int i = 0; i < 1234; ++i) dos.writeInt(i); hbw.writeHeaderAndData(os); totalSize += hbw.getOnDiskSizeWithHeader(); }/*from w ww .j ava 2s.com*/ os.close(); // Use hbase checksums. assertEquals(true, hfs.useHBaseChecksum()); // Do a read that purposely introduces checksum verification failures. FSDataInputStreamWrapper is = new FSDataInputStreamWrapper(fs, path); meta = new HFileContextBuilder().withCompression(algo).withIncludesMvcc(true) .withIncludesTags(useTags).withHBaseCheckSum(true).build(); HFileBlock.FSReader hbr = new FSReaderV2Test(is, totalSize, fs, path, meta); HFileBlock b = hbr.readBlockData(0, -1, -1, pread); b.sanityCheck(); assertEquals(4936, b.getUncompressedSizeWithoutHeader()); assertEquals(algo == GZ ? 2173 : 4936, b.getOnDiskSizeWithoutHeader() - b.totalChecksumBytes()); // read data back from the hfile, exclude header and checksum ByteBuffer bb = b.getBufferWithoutHeader(); // read back data DataInputStream in = new DataInputStream( new ByteArrayInputStream(bb.array(), bb.arrayOffset(), bb.limit())); // assert that we encountered hbase checksum verification failures // but still used hdfs checksums and read data successfully. assertEquals(1, HFile.getChecksumFailuresCount()); validateData(in); // A single instance of hbase checksum failure causes the reader to // switch off hbase checksum verification for the next 100 read // requests. Verify that this is correct. for (int i = 0; i < HFileBlock.CHECKSUM_VERIFICATION_NUM_IO_THRESHOLD + 1; i++) { b = hbr.readBlockData(0, -1, -1, pread); assertEquals(0, HFile.getChecksumFailuresCount()); } // The next read should have hbase checksum verification reanabled, // we verify this by assertng that there was a hbase-checksum failure. b = hbr.readBlockData(0, -1, -1, pread); assertEquals(1, HFile.getChecksumFailuresCount()); // Since the above encountered a checksum failure, we switch // back to not checking hbase checksums. b = hbr.readBlockData(0, -1, -1, pread); assertEquals(0, HFile.getChecksumFailuresCount()); is.close(); // Now, use a completely new reader. Switch off hbase checksums in // the configuration. In this case, we should not detect // any retries within hbase. HFileSystem newfs = new HFileSystem(TEST_UTIL.getConfiguration(), false); assertEquals(false, newfs.useHBaseChecksum()); is = new FSDataInputStreamWrapper(newfs, path); hbr = new FSReaderV2Test(is, totalSize, newfs, path, meta); b = hbr.readBlockData(0, -1, -1, pread); is.close(); b.sanityCheck(); assertEquals(4936, b.getUncompressedSizeWithoutHeader()); assertEquals(algo == GZ ? 2173 : 4936, b.getOnDiskSizeWithoutHeader() - b.totalChecksumBytes()); // read data back from the hfile, exclude header and checksum bb = b.getBufferWithoutHeader(); // read back data in = new DataInputStream(new ByteArrayInputStream(bb.array(), bb.arrayOffset(), bb.limit())); // assert that we did not encounter hbase checksum verification failures // but still used hdfs checksums and read data successfully. assertEquals(0, HFile.getChecksumFailuresCount()); validateData(in); } } }
From source file:MixedRecordEnumerationExample.java
public void commandAction(Command command, Displayable displayable) { if (command == exit) { destroyApp(true);/*from w w w . java 2 s. c om*/ notifyDestroyed(); } else if (command == start) { try { recordstore = RecordStore.openRecordStore("myRecordStore", true); } catch (Exception error) { alert = new Alert("Error Creating", error.toString(), null, AlertType.WARNING); alert.setTimeout(Alert.FOREVER); display.setCurrent(alert); } try { byte[] outputRecord; String outputString[] = { "First Record", "Second Record", "Third Record" }; int outputInteger[] = { 15, 10, 5 }; boolean outputBoolean[] = { true, false, true }; ByteArrayOutputStream outputStream = new ByteArrayOutputStream(); DataOutputStream outputDataStream = new DataOutputStream(outputStream); for (int x = 0; x < 3; x++) { outputDataStream.writeUTF(outputString[x]); outputDataStream.writeBoolean(outputBoolean[x]); outputDataStream.writeInt(outputInteger[x]); outputDataStream.flush(); outputRecord = outputStream.toByteArray(); recordstore.addRecord(outputRecord, 0, outputRecord.length); } outputStream.reset(); outputStream.close(); outputDataStream.close(); } catch (Exception error) { alert = new Alert("Error Writing", error.toString(), null, AlertType.WARNING); alert.setTimeout(Alert.FOREVER); display.setCurrent(alert); } try { StringBuffer buffer = new StringBuffer(); byte[] byteInputData = new byte[300]; ByteArrayInputStream inputStream = new ByteArrayInputStream(byteInputData); DataInputStream inputDataStream = new DataInputStream(inputStream); recordEnumeration = recordstore.enumerateRecords(null, null, false); while (recordEnumeration.hasNextElement()) { recordstore.getRecord(recordEnumeration.nextRecordId(), byteInputData, 0); buffer.append(inputDataStream.readUTF()); buffer.append("\n"); buffer.append(inputDataStream.readBoolean()); buffer.append("\n"); buffer.append(inputDataStream.readInt()); buffer.append("\n"); alert = new Alert("Reading", buffer.toString(), null, AlertType.WARNING); alert.setTimeout(Alert.FOREVER); display.setCurrent(alert); } inputStream.close(); } catch (Exception error) { alert = new Alert("Error Reading", error.toString(), null, AlertType.WARNING); alert.setTimeout(Alert.FOREVER); display.setCurrent(alert); } try { recordstore.closeRecordStore(); } catch (Exception error) { alert = new Alert("Error Closing", error.toString(), null, AlertType.WARNING); alert.setTimeout(Alert.FOREVER); display.setCurrent(alert); } if (RecordStore.listRecordStores() != null) { try { RecordStore.deleteRecordStore("myRecordStore"); recordEnumeration.destroy(); } catch (Exception error) { alert = new Alert("Error Removing", error.toString(), null, AlertType.WARNING); alert.setTimeout(Alert.FOREVER); display.setCurrent(alert); } } } }
From source file:com.igormaznitsa.jhexed.renders.svg.SVGImage.java
public void write(final OutputStream out, final boolean zipped) throws IOException { final DataOutputStream dout = out instanceof DataOutputStream ? (DataOutputStream) out : new DataOutputStream(out); if (zipped) { final byte[] packedImage = Utils.packByteArray(this.originalNonParsedImageData); dout.writeInt(packedImage.length); dout.write(packedImage);//from w ww. ja va2 s . c o m } else { dout.write(this.originalNonParsedImageData); } dout.writeBoolean(this.quality); }
From source file:org.veronicadb.core.memorygraph.storage.SimpleLocalFileStorageSink.java
protected void writeElementLabel(DataOutputStream stream, VElement element) throws IOException { if (element.getLabel() == null) { stream.writeInt(-1); } else {/*w w w . j av a 2s . c om*/ stream.writeInt(element.getLabel().length()); stream.write(element.getLabel().getBytes()); } }
From source file:org.hydracache.server.data.versioning.VectorClockVersionFactory.java
@Override public void writeObject(final Version version, final DataOutputStream dataOut) throws IOException { Validate.isTrue(version instanceof VectorClock, "version must be non null and an instance of VectorClock"); Validate.notNull(dataOut, "dataOut can not be null"); final VectorClock vectorClock = (VectorClock) version; final List<VectorClockEntry> vectorClockEntries = vectorClock.getEntries(); dataOut.writeInt(vectorClockEntries.size()); for (final VectorClockEntry vce : vectorClockEntries) { getIdentityMarshaller().writeObject(vce.getNodeId(), dataOut); dataOut.writeLong(vce.getValue()); dataOut.writeLong(vce.getTimestamp()); }//w ww .java 2s .c o m }
From source file:hudson.console.ConsoleNote.java
private ByteArrayOutputStream encodeToBytes() throws IOException { ByteArrayOutputStream buf = new ByteArrayOutputStream(); ObjectOutputStream oos = new ObjectOutputStream(new GZIPOutputStream(buf)); try {/*from w w w. j a v a 2s. co m*/ oos.writeObject(this); } finally { oos.close(); } ByteArrayOutputStream buf2 = new ByteArrayOutputStream(); DataOutputStream dos = new DataOutputStream(new Base64OutputStream(buf2, true, -1, null)); try { buf2.write(PREAMBLE); dos.writeInt(buf.size()); buf.writeTo(dos); } finally { dos.close(); } buf2.write(POSTAMBLE); return buf2; }