List of usage examples for java.io DataInputStream readDouble
public final double readDouble() throws IOException
readDouble method of DataInput. From source file:org.hyperic.hq.measurement.agent.server.SenderThread.java
private static Record decodeRecord(String val) throws IOException { ByteArrayInputStream bIs;/*ww w . j a v a2 s. c o m*/ DataInputStream dIs; MetricValue measVal; boolean isAvail; int derivedID, dsnID; long retTime; bIs = new ByteArrayInputStream(Base64.decode(val)); dIs = new DataInputStream(bIs); derivedID = dIs.readInt(); retTime = dIs.readLong(); dsnID = dIs.readInt(); measVal = new MetricValue(dIs.readDouble(), retTime); return new Record(dsnID, measVal, derivedID); }
From source file:RealFunctionValidation.java
public static Object readAndWritePrimitiveValue(final DataInputStream in, final DataOutputStream out, final Class<?> type) throws IOException { if (!type.isPrimitive()) { throw new IllegalArgumentException("type must be primitive"); }//from w w w .j av a2s.com if (type.equals(Boolean.TYPE)) { final boolean x = in.readBoolean(); out.writeBoolean(x); return Boolean.valueOf(x); } else if (type.equals(Byte.TYPE)) { final byte x = in.readByte(); out.writeByte(x); return Byte.valueOf(x); } else if (type.equals(Character.TYPE)) { final char x = in.readChar(); out.writeChar(x); return Character.valueOf(x); } else if (type.equals(Double.TYPE)) { final double x = in.readDouble(); out.writeDouble(x); return Double.valueOf(x); } else if (type.equals(Float.TYPE)) { final float x = in.readFloat(); out.writeFloat(x); return Float.valueOf(x); } else if (type.equals(Integer.TYPE)) { final int x = in.readInt(); out.writeInt(x); return Integer.valueOf(x); } else if (type.equals(Long.TYPE)) { final long x = in.readLong(); out.writeLong(x); return Long.valueOf(x); } else if (type.equals(Short.TYPE)) { final short x = in.readShort(); out.writeShort(x); return Short.valueOf(x); } else { // This should never occur. throw new IllegalStateException(); } }
From source file:com.anhth12.word2vec.VocabWord.java
public VocabWord read(DataInputStream dis) throws IOException { this.wordFrequency.set(dis.readDouble()); return this; }
From source file:org.deeplearning4j.models.word2vec.VocabWord.java
public VocabWord read(DataInputStream dos) throws IOException { this.wordFrequency.set(dos.readDouble()); return this; }
From source file:org.apache.hama.monitor.ZKCollector.java
@Override public MetricsRecord harvest() throws Exception { final String path = this.reference.get().path; final ZooKeeper zk = this.reference.get().zk; LOG.debug("Searching " + path + " in zookeeper."); Stat stat = zk.exists(path, false);//from w w w . jav a2s .co m if (null == stat) return null; // no need to collect data. List<String> children = zk.getChildren(path, false); if (LOG.isDebugEnabled()) { LOG.debug("Leaves size is " + children.size() + " total znodes in list: " + children); } // TODO: metrics record contains multiple metrics (1 to many) // data is stored under zk e.g. /path/to/metrics/jvm/... // within jvm folder metrics is stored in a form of name, value pair final MetricsRecord record = reference.get().record; if (null != children) { for (String child : children) { LOG.info("metrics -> " + child); // <metricsName_d> indicates data type is double String dataType = suffix(child); byte[] dataInBytes = zk.getData(path + "/" + child, false, stat); if (LOG.isDebugEnabled()) { LOG.debug("Data length (in byte): " + dataInBytes.length); } DataInputStream input = null; try { String name = removeSuffix(child); input = new DataInputStream(new ByteArrayInputStream(dataInBytes)); if ("d".equals(dataType)) { double dv = input.readDouble(); LOG.info("metrics " + name + " value:" + dv); record.add(new Metric<Double>(name, dv)); } else if ("f".equals(dataType)) { float fv = input.readFloat(); LOG.info("metrics " + name + " value:" + fv); record.add(new Metric<Float>(name, fv)); } else if ("i".equals(dataType)) { int iv = input.readInt(); LOG.info("metrics " + name + " value:" + iv); record.add(new Metric<Integer>(name, iv)); } else if ("l".equals(dataType)) { long lv = input.readLong(); LOG.info("metrics " + name + " value:" + lv); record.add(new Metric<Long>(name, lv)); } else if ("b".equals(dataType)) { LOG.info("metrics" + name + " value:" + Arrays.toString(dataInBytes)); record.add(new Metric<byte[]>(name, dataInBytes)); } else { LOG.warn("Unkown data type for metrics name: " + child); } } finally { input.close(); } } } return record; }
From source file:RealFunctionValidation.java
public static SummaryStatistics assessAccuracy(final Method method, final DataInputStream in, final DataOutputStream out) throws IOException, IllegalAccessException, IllegalArgumentException, InvocationTargetException { if (method.getReturnType() != Double.TYPE) { throw new IllegalArgumentException("method must return a double"); }/*w ww.j a v a 2s .c o m*/ final Class<?>[] types = method.getParameterTypes(); for (int i = 0; i < types.length; i++) { if (!types[i].isPrimitive()) { final StringBuilder builder = new StringBuilder(); builder.append("argument #").append(i + 1).append(" of method ").append(method.getName()) .append("must be of primitive of type"); throw new IllegalArgumentException(builder.toString()); } } final SummaryStatistics stat = new SummaryStatistics(); final Object[] parameters = new Object[types.length]; while (true) { try { for (int i = 0; i < parameters.length; i++) { parameters[i] = readAndWritePrimitiveValue(in, out, types[i]); } final double expected = in.readDouble(); if (FastMath.abs(expected) > 1E-16) { final Object value = method.invoke(null, parameters); final double actual = ((Double) value).doubleValue(); final double err = FastMath.abs(actual - expected); final double ulps = err / FastMath.ulp(expected); out.writeDouble(expected); out.writeDouble(actual); out.writeDouble(ulps); stat.addValue(ulps); } } catch (EOFException e) { break; } } return stat; }
From source file:com.yahoo.pulsar.testclient.LoadSimulationClient.java
private void decodeProducerOptions(final TradeConfiguration tradeConf, final DataInputStream inputStream) throws Exception { tradeConf.topic = inputStream.readUTF(); tradeConf.size = inputStream.readInt(); tradeConf.rate = inputStream.readDouble(); }
From source file:org.structr.core.graph.SyncCommand.java
private static Object readObject(final DataInputStream inputStream, final byte type) throws IOException { switch (type) { case 0:// w w w . j a v a2 s. c o m case 1: return inputStream.readByte(); case 2: case 3: return inputStream.readShort(); case 4: case 5: return inputStream.readInt(); case 6: case 7: return inputStream.readLong(); case 8: case 9: return inputStream.readFloat(); case 10: case 11: return inputStream.readDouble(); case 12: case 13: return inputStream.readChar(); case 14: case 15: return new String(deserializeData(inputStream), "UTF-8"); // this doesn't work with very long strings //return inputStream.readUTF(); case 16: case 17: return inputStream.readBoolean(); } return null; }
From source file:org.slc.sli.dal.encrypt.AesCipher.java
private Object decryptBinary(String data, Class<?> expectedType) { byte[] decoded = decryptToBytes(data); DataInputStream dis = new DataInputStream(new ByteArrayInputStream(decoded)); try {//from w w w.j a v a2 s . c om if (Boolean.class.equals(expectedType)) { return dis.readBoolean(); } else if (Integer.class.equals(expectedType)) { return dis.readInt(); } else if (Long.class.equals(expectedType)) { return dis.readLong(); } else if (Double.class.equals(expectedType)) { return dis.readDouble(); } else { throw new RuntimeException("Unsupported type: " + expectedType.getCanonicalName()); } } catch (IOException e) { throw new RuntimeException(e); } finally { try { dis.close(); } catch (IOException e) { LOG.error("Unable to close DataInputStream!"); } } }
From source file:edu.fullerton.ldvplugin.ExternalPlotManager.java
public double[][] rdBinXYFile(File in) throws FileNotFoundException, IOException, WebUtilException { ArrayList<double[]> data = new ArrayList<>(); DataInputStream input = new DataInputStream(new FileInputStream(in)); try {/*ww w .j av a 2 s . co m*/ while (true) { double[] it = new double[2]; it[0] = input.readDouble(); it[1] = input.readDouble(); data.add(it); } } catch (EOFException eof) { // we're good } catch (IOException ex) { String ermsg = "Reading binary xy data from file: " + ex.getClass().getSimpleName(); ermsg += " - " + ex.getLocalizedMessage(); throw new WebUtilException(ermsg); } // return as array double[][] ret = new double[1][2]; ret = data.toArray(ret); return ret; }