Example usage for java.util.function Supplier get

Introduction

In this page you can find the example usage for java.util.function Supplier get.

Prototype

T get();

Source Link

Document

Gets a result.

Usage

From source file:nl.rivm.cib.episim.model.disease.infection.MSEIRSTest.java

public static Observable<Map.Entry<Double, double[]>> deterministic(final SIRConfig config,
        final Supplier<FirstOrderIntegrator> integrators) {
    return Observable.create(sub -> {
        final double gamma = 1. / config.recovery();
        final double beta = gamma * config.reproduction();
        final double[] y0 = Arrays.stream(config.population()).mapToDouble(n -> n).toArray();
        final double[] t = config.t();

        try {/*  w  w  w  . j av a  2  s . c o m*/
            final FirstOrderIntegrator integrator = integrators.get();

            integrator.addStepHandler(new StepHandler() {
                @Override
                public void init(final double t0, final double[] y0, final double t) {
                    publishCopy(sub, t0, y0);
                }

                @Override
                public void handleStep(final StepInterpolator interpolator, final boolean isLast)
                        throws MaxCountExceededException {
                    publishCopy(sub, interpolator.getInterpolatedTime(), interpolator.getInterpolatedState());
                    if (isLast)
                        sub.onComplete();
                }
            });

            integrator.integrate(new FirstOrderDifferentialEquations() {
                @Override
                public int getDimension() {
                    return y0.length;
                }

                @Override
                public void computeDerivatives(final double t, final double[] y, final double[] yp) {
                    // SIR terms (flow rates)
                    final double n = y[0] + y[1] + y[2], flow_si = beta * y[0] * y[1] / n,
                            flow_ir = gamma * y[1];

                    yp[0] = -flow_si;
                    yp[1] = flow_si - flow_ir;
                    yp[2] = flow_ir;
                }
            }, t[0], y0, t[1], y0);
        } catch (final Exception e) {
            sub.onError(e);
        }
    });
}

From source file:nl.salp.warcraft4j.casc.cdn.CdnCascContext.java

/**
 * Parse the encoding file.//  w w w .  jav  a  2 s.  co m
 *
 * @return The parsed encoding file.
 *
 * @throws CascParsingException When parsing of the encoding file failed.
 */
protected EncodingFile parseEncoding() throws CascParsingException {
    Supplier<DataReader> readerSupplier = getEncodingReader();
    LOGGER.debug("Initialising encoding file (fileKey: {}, fileSize: {}).",
            getCdnCascConfig().getStorageEncodingFileChecksum(),
            getCdnCascConfig().getStorageEncodingFileSize());
    try (DataReader reader = readerSupplier.get()) {
        EncodingFile encodingFile = new EncodingFileParser().parse(reader,
                getCdnCascConfig().getExtractedEncodingFileSize());
        return encodingFile;
    } catch (IOException e) {
        throw new CascParsingException(format("Error parsing encoding file %s",
                getCdnCascConfig().getExtractedEncodingFileChecksum().toHexString()), e);
    }
}

From source file:onl.area51.filesystem.ftp.client.DefaultFTPClient.java

@Override
public void log(Supplier<String> msg) {
    if (writer != null) {
        writer.println(msg.get());
    }
}

From source file:org.apache.cassandra.Util.java

public static void spinAssertEquals(Object expected, Supplier<Object> s, int timeoutInSeconds) {
    long now = System.currentTimeMillis();
    while (System.currentTimeMillis() - now < now + (1000 * timeoutInSeconds)) {
        if (s.get().equals(expected))
            break;
        Thread.yield();/*from   w w  w  . j ava 2s .c  o m*/
    }
    assertEquals(expected, s.get());
}

From source file:org.apache.commons.weaver.privilizer.example.MethodReferencesUsingBlueprints.java

public String utilsReadPublicConstant() {
    final Supplier<String> s = Utils::readPublicConstant;
    return s.get();
}

From source file:org.apache.commons.weaver.privilizer.example.MethodReferencesUsingBlueprints.java

public String utilsGetProperty() {
    final Supplier<String> s = Utils::getProperty;
    return s.get();
}

From source file:org.apache.commons.weaver.privilizer.example.MethodReferencesUsingBlueprints.java

public String moreGetProperty() {
    final Supplier<String> s = Utils.More::getProperty;
    return s.get();
}

From source file:org.apache.commons.weaver.privilizer.example.MethodReferencesUsingBlueprints.java

public String moreGetTopStackElementClassName() {
    final Supplier<String> s = Utils.More::getTopStackElementClassName;
    return s.get();
}

From source file:org.apache.flink.table.client.gateway.local.ExecutionContext.java

/**
 * Executes the given supplier using the execution context's classloader as thread classloader.
 *//*www  . j  a  va 2s .  c o m*/
public <R> R wrapClassLoader(Supplier<R> supplier) {
    final ClassLoader previousClassloader = Thread.currentThread().getContextClassLoader();
    Thread.currentThread().setContextClassLoader(classLoader);
    try {
        return supplier.get();
    } finally {
        Thread.currentThread().setContextClassLoader(previousClassloader);
    }
}

From source file:org.apache.hadoop.hbase.client.AsyncBatchRpcRetryingCaller.java

private void logException(int tries, Supplier<Stream<RegionRequest>> regionsSupplier, Throwable error,
        ServerName serverName) {/*w w w.j a  va2  s  . c  o  m*/
    if (tries > startLogErrorsCnt) {
        String regions = regionsSupplier.get()
                .map(r -> "'" + r.loc.getRegionInfo().getRegionNameAsString() + "'")
                .collect(Collectors.joining(",", "[", "]"));
        LOG.warn("Process batch for " + regions + " in " + tableName + " from " + serverName + " failed, tries="
                + tries, error);
    }
}