Example usage for java.util List forEach

List of usage examples for java.util List forEach

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Introduction

In this page you can find the example usage for java.util List forEach.

Prototype

default void forEach(Consumer<? super T> action)

Source Link

Document

Performs the given action for each element of the Iterable until all elements have been processed or the action throws an exception.

Usage

From source file:io.rhiot.spec.IoTSpec.java

public static void main(String[] args) throws Exception {

    CommandLineParser parser = new DefaultParser();

    Options options = new Options();
    options.addOption(Option.builder("c").longOpt(CONFIG).desc(
            "Location of the test configuration file. A default value is 'src/main/resources/test.yaml' for easy IDE testing")
            .hasArg().build());/*from www.  j  a va2 s  .  co m*/

    options.addOption(Option.builder("i").longOpt(INSTANCE).desc("Instance of the test; A default value is 1")
            .hasArg().build());

    options.addOption(Option.builder("r").longOpt(REPORT)
            .desc("Location of the test report. A default value is 'target/report.csv'").hasArg().build());

    CommandLine line = parser.parse(options, args);
    ObjectMapper mapper = new ObjectMapper(new YAMLFactory());
    TestProfile test = mapper.readValue(new File(line.getOptionValue(CONFIG, "src/main/resources/test.yaml")),
            TestProfile.class);
    int instance = Integer.valueOf(line.getOptionValue(INSTANCE, "1"));
    test.setInstance(instance);
    String report = line.getOptionValue(REPORT, "target/report.csv");
    test.setReport(new CSVReport(report));

    LOG.info("Test '" + test.getName() + "' instance " + instance + " started");
    final List<Driver> drivers = test.getDrivers();
    ExecutorService executorService = Executors.newFixedThreadPool(drivers.size());
    List<Future<Void>> results = executorService.invokeAll(drivers, test.getDuration(), TimeUnit.MILLISECONDS);
    executorService.shutdownNow();
    executorService.awaitTermination(5, TimeUnit.SECONDS);

    results.forEach(result -> {
        try {
            result.get();
        } catch (ExecutionException execution) {
            LOG.warn("Exception running driver", execution);
        } catch (Exception interrupted) {
        }
    });

    drivers.forEach(driver -> {
        driver.stop();

        try {
            test.getReport().print(driver);
        } catch (Exception e) {
            LOG.warn("Failed to write reports for the driver " + driver);
        }
        LOG.debug("Driver " + driver);
        LOG.debug("\t " + driver.getResult());
    });
    test.getReport().close();

    LOG.info("Test '" + test.getName() + "' instance " + instance + " finished");

}

From source file:io.fabric8.vertx.maven.plugin.FileFilterMain.java

public static void main(String[] args) {

    Commandline commandline = new Commandline();
    commandline.setExecutable("java");
    commandline.createArg().setValue("io.vertx.core.Launcher");
    commandline.createArg().setValue("--redeploy=target/**/*");

    System.out.println(commandline);/*  w w w.  j  av  a  2 s . co  m*/

    File baseDir = new File("/Users/kameshs/git/fabric8io/vertx-maven-plugin/samples/vertx-demo");
    List<String> includes = new ArrayList<>();
    includes.add("src/**/*.java");
    //FileAlterationMonitor monitor  = null;
    try {

        Set<Path> inclDirs = new HashSet<>();

        includes.forEach(s -> {
            try {

                if (s.startsWith("**")) {
                    Path rootPath = Paths.get(baseDir.toString());
                    if (Files.exists(rootPath)) {
                        File[] dirs = rootPath.toFile().listFiles((dir, name) -> dir.isDirectory());
                        Objects.requireNonNull(dirs);
                        Stream.of(dirs).forEach(f -> inclDirs.add(Paths.get(f.toString())));
                    }
                } else if (s.contains("**")) {
                    String root = s.substring(0, s.indexOf("/**"));
                    Path rootPath = Paths.get(baseDir.toString(), root);
                    if (Files.exists(rootPath)) {
                        File[] dirs = rootPath.toFile().listFiles((dir, name) -> dir.isDirectory());
                        Objects.requireNonNull(dirs);
                        Stream.of(dirs).forEach(f -> inclDirs.add(Paths.get(f.toString())));
                    }
                }

                List<Path> dirs = FileUtils.getFileAndDirectoryNames(baseDir, s, null, true, true, true, true)
                        .stream().map(FileUtils::dirname).map(Paths::get)
                        .filter(p -> Files.exists(p) && Files.isDirectory(p)).collect(Collectors.toList());

                inclDirs.addAll(dirs);

            } catch (Exception e) {
                e.printStackTrace();
            }
        });

        FileAlterationMonitor monitor = fileWatcher(inclDirs);

        Runnable monitorTask = () -> {
            try {
                monitor.start();
            } catch (Exception e) {
                e.printStackTrace();
            }
        };

        monitorTask.run();

    } catch (Exception e) {
        e.printStackTrace();
    }

}

From source file:io.reactiverse.vertx.maven.plugin.FileFilterMain.java

public static void main(String[] args) {

    Commandline commandline = new Commandline();
    commandline.setExecutable("java");
    commandline.createArg().setValue("io.vertx.core.Launcher");
    commandline.createArg().setValue("--redeploy=target/**/*");

    System.out.println(commandline);/*from  w w w  .jav a  2  s.  com*/

    File baseDir = new File("/Users/kameshs/git/reactiverse/vertx-maven-plugin/samples/vertx-demo");
    List<String> includes = new ArrayList<>();
    includes.add("src/**/*.java");
    //FileAlterationMonitor monitor  = null;
    try {

        Set<Path> inclDirs = new HashSet<>();

        includes.forEach(s -> {
            try {

                if (s.startsWith("**")) {
                    Path rootPath = Paths.get(baseDir.toString());
                    if (Files.exists(rootPath)) {
                        File[] dirs = rootPath.toFile().listFiles((dir, name) -> dir.isDirectory());
                        Objects.requireNonNull(dirs);
                        Stream.of(dirs).forEach(f -> inclDirs.add(Paths.get(f.toString())));
                    }
                } else if (s.contains("**")) {
                    String root = s.substring(0, s.indexOf("/**"));
                    Path rootPath = Paths.get(baseDir.toString(), root);
                    if (Files.exists(rootPath)) {
                        File[] dirs = rootPath.toFile().listFiles((dir, name) -> dir.isDirectory());
                        Objects.requireNonNull(dirs);
                        Stream.of(dirs).forEach(f -> inclDirs.add(Paths.get(f.toString())));
                    }
                }

                List<Path> dirs = FileUtils.getFileAndDirectoryNames(baseDir, s, null, true, true, true, true)
                        .stream().map(FileUtils::dirname).map(Paths::get)
                        .filter(p -> Files.exists(p) && Files.isDirectory(p)).collect(Collectors.toList());

                inclDirs.addAll(dirs);

            } catch (Exception e) {
                e.printStackTrace();
            }
        });

        FileAlterationMonitor monitor = fileWatcher(inclDirs);

        Runnable monitorTask = () -> {
            try {
                monitor.start();
            } catch (Exception e) {
                e.printStackTrace();
            }
        };

        monitorTask.run();

    } catch (Exception e) {
        e.printStackTrace();
    }

}

From source file:Main.java

public static void main(String[] args) {

    List<String> friends = Arrays.asList("A", "B", "C", "D");

    //external iterate with index == evil
    for (int i = 0; i < friends.size(); i++) {
        System.out.println(friends.get(i));
    }//from  w  w  w.j a va  2s . c om

    //external iterate on collection, better but ... external
    for (String friend : friends) {
        System.out.println(friend);
    }

    //lambda
    friends.forEach(s -> System.out.println(s));

    //lambda reference
    friends.forEach(System.out::println);
}

From source file:org.neo4j.nlp.examples.wikipedia.main.java

public static void main(String[] args) throws IOException {
    List<Map<String, Object>> results = getWikipediaArticles();

    results = results.stream().filter(a -> !a.get("title").toString().trim().isEmpty())
            .collect(Collectors.toList());
    //System.out.println(results);
    // Train model
    results.forEach(row -> {
        System.out.println("Training on '" + row.get("title").toString() + "'");
        String articleText = getArticleText(row.get("title").toString());
        if (articleText != null) {
            trainOnText(new String[] { (String) articleText }, new String[] { (String) row.get("title") });
        }/*from  w  ww  . j a  v a2 s .  com*/

    });

    //System.out.println(results);
    //        try {
    //            Thread.sleep(10);
    //        } catch (InterruptedException e) {
    //            e.printStackTrace();
    //        }
}

From source file:Main.java

public static void main(String[] args) {
    List<Integer> l = Arrays.asList(1, 3, 2, 4, 7, 8, 9, 6, 5);
    int variableOutside = 50;
    Consumer<Integer> consumer = i -> { //Type of i can be implicitly known
        int variableInside = 70;
        variableInside++;//from  w ww.j a  v  a 2 s .  co  m
        System.out.printf("%d plus %d plus %d equals %d\n", variableOutside, variableInside, i,
                variableOutside + variableInside + i);
    };
    //variableOutside = 100; //Must be effectively final

    l.forEach(consumer);
}

From source file:net.e2.bw.idreg.db2ldif.Db2Ldif.java

/**
 * Main method/*from  w w w.j  a  va 2  s. c  o  m*/
 * @param args runtime arguments
 */
public static void main(String[] args) throws Exception {
    Db2Ldif db2ldif = new Db2Ldif();

    // Preload company data from json file
    ObjectMapper mapper = new ObjectMapper();
    List<Company> companies = mapper.readValue(Db2Ldif.class.getResource("/companies.json"),
            new TypeReference<List<Company>>() {
            });
    companies.forEach(c -> db2ldif.companyData.put(c.uid, c));

    new JCommander(db2ldif, args);
    db2ldif.execute();
}

From source file:Main.java

public static void main(String[] args) {
    List<Integer> l = Arrays.asList(1, 3, 2, 4, 7, 8, 9, 6, 5);
    IntWrapper variableOutside = new IntWrapper(50);
    Consumer<Integer> consumer = i -> {
        int variableInside = 70;
        System.out.println(variableOutside.getInt());
        variableOutside.incr(); // Imagine multi-thread environment calling this
        variableInside++;//from  www .j  a v a  2s  .c o  m
        System.out.printf("%s plus %d plus %d equals %d\n", variableOutside, variableInside, i,
                variableOutside.getInt() + variableInside + i);
    };
    variableOutside.incr(); // Now it's the variableOutside starts from 51
    l.forEach(consumer);
}

From source file:com.khartec.waltz.jobs.sample.EndUserAppMaker.java

public static void main(String[] args) {
    AnnotationConfigApplicationContext ctx = new AnnotationConfigApplicationContext(DIConfiguration.class);
    OrganisationalUnitDao organisationalUnitDao = ctx.getBean(OrganisationalUnitDao.class);

    DSLContext dsl = ctx.getBean(DSLContext.class);

    EndUserAppService endUserService = ctx.getBean(EndUserAppService.class);

    List<Long> ids = IdUtilities.toIds(organisationalUnitDao.findAll());

    String[] subjects = { "Trade", "Risk", "Balance", "PnL", "Rate", "Fines", "Party", "Confirmations",
            "Settlement", "Instruction", "Person", "Profit", "Margin", "Finance", "Account" };

    String[] types = { "Report", "Summary", "Draft", "Calculations", "Breaks", "Record", "Statement",
            "Information", "Pivot" };

    String[] tech = { "MS ACCESS", "MS EXCEL", "VBA" };

    dsl.delete(END_USER_APPLICATION).execute();
    final Long[] idCounter = { 1L };
    ids.forEach(ouId -> {
        for (int i = 0; i < new Random().nextInt(100) + 40; i++) {
            EndUserApplicationRecord record = dsl.newRecord(END_USER_APPLICATION);
            String name = new StringBuilder().append(randomPick(subjects)).append(" ")
                    .append(randomPick(subjects)).append(" ").append(randomPick(types)).append(" ")
                    .append(randomPick(types)).toString();

            record.setName(name);/*from   ww w .  j  a  va  2  s  . c om*/
            record.setDescription("About the " + name + " End user app");
            record.setKind(randomPick(tech));
            record.setRiskRating(randomPick(RiskRating.values()).name());
            record.setLifecyclePhase(randomPick(LifecyclePhase.values()).name());
            record.setOrganisationalUnitId(ouId);

            record.setId(idCounter[0]++);
            record.insert();
        }
    });

}

From source file:com.example.geomesa.kafka08.KafkaLoadTester.java

public static void main(String[] args) throws Exception {
    // read command line args for a connection to Kafka
    CommandLineParser parser = new BasicParser();
    Options options = getCommonRequiredOptions();
    CommandLine cmd = parser.parse(options, args);
    String visibility = getVisibility(cmd);

    if (visibility == null) {
        System.out.println("visibility: null");
    } else {/*from   w  w w  . ja v  a  2 s . com*/
        System.out.println("visibility: '" + visibility + "'");
    }

    // create the producer and consumer KafkaDataStore objects
    Map<String, String> dsConf = getKafkaDataStoreConf(cmd);
    System.out.println("KDS config: " + dsConf);
    dsConf.put("isProducer", "true");
    DataStore producerDS = DataStoreFinder.getDataStore(dsConf);
    dsConf.put("isProducer", "false");
    DataStore consumerDS = DataStoreFinder.getDataStore(dsConf);

    // verify that we got back our KafkaDataStore objects properly
    if (producerDS == null) {
        throw new Exception("Null producer KafkaDataStore");
    }
    if (consumerDS == null) {
        throw new Exception("Null consumer KafkaDataStore");
    }

    // create the schema which creates a topic in Kafka
    // (only needs to be done once)
    final String sftName = "KafkaStressTest";
    final String sftSchema = "name:String,age:Int,step:Double,lat:Double,dtg:Date,*geom:Point:srid=4326";
    SimpleFeatureType sft = SimpleFeatureTypes.createType(sftName, sftSchema);
    // set zkPath to default if not specified
    String zkPath = (dsConf.get(ZK_PATH) == null) ? "/geomesa/ds/kafka" : dsConf.get(ZK_PATH);
    SimpleFeatureType preppedOutputSft = KafkaDataStoreHelper.createStreamingSFT(sft, zkPath);
    // only create the schema if it hasn't been created already
    if (!Arrays.asList(producerDS.getTypeNames()).contains(sftName))
        producerDS.createSchema(preppedOutputSft);

    System.out.println("Register KafkaDataStore in GeoServer (Press enter to continue)");
    System.in.read();

    // the live consumer must be created before the producer writes features
    // in order to read streaming data.
    // i.e. the live consumer will only read data written after its instantiation
    SimpleFeatureStore producerFS = (SimpleFeatureStore) producerDS.getFeatureSource(sftName);
    SimpleFeatureSource consumerFS = consumerDS.getFeatureSource(sftName);

    // creates and adds SimpleFeatures to the producer every 1/5th of a second
    System.out.println("Writing features to Kafka... refresh GeoServer layer preview to see changes");

    SimpleFeatureBuilder builder = new SimpleFeatureBuilder(sft);

    Integer numFeats = getLoad(cmd);

    System.out.println("Building a list of " + numFeats + " SimpleFeatures.");
    List<SimpleFeature> features = IntStream.range(1, numFeats)
            .mapToObj(i -> createFeature(builder, i, visibility)).collect(Collectors.toList());

    // set variables to estimate feature production rate
    Long startTime = null;
    Long featuresSinceStartTime = 0L;
    int cycle = 0;
    int cyclesToSkip = 50000 / numFeats; // collect enough features
                                         // to get an accurate rate estimate

    while (true) {
        // write features
        features.forEach(feat -> {
            try {
                DefaultFeatureCollection featureCollection = new DefaultFeatureCollection();
                featureCollection.add(feat);
                producerFS.addFeatures(featureCollection);
            } catch (Exception e) {
                System.out.println("Caught an exception while writing features.");
                e.printStackTrace();
            }
            updateFeature(feat);
        });

        // count features written
        Integer consumerSize = consumerFS.getFeatures().size();
        cycle++;
        featuresSinceStartTime += consumerSize;
        System.out.println("At " + new Date() + " wrote " + consumerSize + " features");

        // if we've collected enough features, calculate the rate
        if (cycle >= cyclesToSkip || startTime == null) {
            Long endTime = System.currentTimeMillis();
            if (startTime != null) {
                Long diffTime = endTime - startTime;
                Double rate = (featuresSinceStartTime.doubleValue() * 1000.0) / diffTime.doubleValue();
                System.out.printf("%.1f feats/sec (%d/%d)\n", rate, featuresSinceStartTime, diffTime);
            }
            cycle = 0;
            startTime = endTime;
            featuresSinceStartTime = 0L;
        }
    }
}