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How to use selectRandom method of ru.qatools.gridrouter.config.RandomHostSelectionStrategy class

Best Gridrouter code snippet using ru.qatools.gridrouter.config.RandomHostSelectionStrategy.selectRandom

Source:SmartHostSelectionStrategy.java

...44        return hubs;45    }46    @Override47    public Region selectRegion(List<Region> allRegions, List<Region> unvisitedRegions) {48        return selectRandom(allRegions, this::toFreePercentage);49    }50    @Override51    public Host selectHost(List<Host> hosts) {52        return selectRandom(hosts, this::toFreePercentage);53    }54    private <T extends WithCount> T selectRandom(List<T> elements, Function<T, Integer> countMapper) {55        if (isTimePassedSince(FALLBACK_TIMEOUT, timestamp)) {56            return super.selectRandom(elements);57        }58        List<WithCount> elementsWithPercentage = new ArrayList<>(elements.size());59        Map<WithCount, T> actual = new HashMap<>(elements.size(), 1);60        for (T element : elements) {61            int count = countMapper.apply(element);62            if (count > 0) {63                WithCount withCount = () -> count;64                elementsWithPercentage.add(withCount);65                actual.put(withCount, element);66            }67        }68        if (elementsWithPercentage.isEmpty()) {69            return super.selectRandom(elements);70        }71        return actual.get(super.selectRandom(elementsWithPercentage));72    }73    public boolean isUpdatedRecently(HubSummary hub) {74        return !isTimePassedSince(HUB_MAX_AGE, hub.getTimestamp());75    }76    private int toFreePercentage(Region region) {77        return region.getHosts().stream().collect(summingInt(this::toFreePercentage));78    }79    private int toFreePercentage(Host host) {80        return hubs.getOrDefault(host.getAddress(), 0);81    }82    private int getFreePercentage(HubSummary hub) {83        return hub.getMax() == 0 ? 0 : 100 - hub.getRunning() * 100 / hub.getMax();84    }85}...

Source:RandomHostSelectionStrategyTest.java

...30        HashMap<Host, Integer> appearances = new HashMap<>(keysCount, entriesCount / keysCount);31        RandomHostSelectionStrategy strategy = new RandomHostSelectionStrategy();32        i = entriesCount;33        while (i-- > 0) {34            Host host = strategy.selectRandom(hosts);35            appearances.put(host, Optional.ofNullable(appearances.get(host)).orElse(0) + 1);36        }37        assertThat(appearances.remove(host1), isAround(entriesCount / 2));38        for (int count : appearances.values()) {39            assertThat(count, isAround(entriesCount / 2 / (keysCount - 1)));40        }41    }42    private static Host newHost() {43        return new Host(UUID.randomUUID().toString(), 4444, 1);44    }45    private static Matcher<Integer> isAround(int count) {46        return both(greaterThan(47                (int) (count * (1 - ALLOWED_DEVIATION))48        )).and(lessThan(...

Source:RandomHostSelectionStrategy.java

...6/**7 * @author Innokenty Shuvalov innokenty@yandex-team.ru8 */9public class RandomHostSelectionStrategy implements HostSelectionStrategy {10    protected <T extends WithCount> T selectRandom(List<T> elements) {11        List<T> copies = new ArrayList<>();12        for (T element : elements) {13            copies.addAll(nCopies(element.getCount(), element));14        }15        shuffle(copies);16        return copies.get(0);17    }18    @Override19    public Region selectRegion(List<Region> allRegions, List<Region> unvisitedRegions) {20        return selectRandom(unvisitedRegions);21    }22    @Override23    public Host selectHost(List<Host> hosts) {24        return selectRandom(hosts);25    }26}...

selectRandom

Using AI Code Generation

1import ru.qatools.gridrouter.config.RandomHostSelectionStrategy;2public class 3 {3    public static void main(String[] args) {4        String[] hosts = {"host1", "host2", "host3", "host4", "host5"};5        RandomHostSelectionStrategy strategy = new RandomHostSelectionStrategy();6        String host = strategy.selectRandom(hosts);7        System.out.println(host);8    }9}10import ru.qatools.gridrouter.config.RandomHostSelectionStrategy;11public class 4 {12    public static void main(String[] args) {13        String[] hosts = {"host1", "host2", "host3", "host4", "host5"};14        RandomHostSelectionStrategy strategy = new RandomHostSelectionStrategy();15        String host = strategy.selectRandom(hosts);16        System.out.println(host);17    }18}19import ru.qatools.gridrouter.config.RandomHostSelectionStrategy;20public class 5 {21    public static void main(String[] args) {22        String[] hosts = {"host1", "host2", "host3", "host4", "host5"};23        RandomHostSelectionStrategy strategy = new RandomHostSelectionStrategy();24        String host = strategy.selectRandom(hosts);25        System.out.println(host);26    }27}28import ru.qatools.gridrouter.config.RandomHostSelectionStrategy;29public class 6 {30    public static void main(String[] args) {31        String[] hosts = {"host1", "host2", "host3", "host4", "host5"};32        RandomHostSelectionStrategy strategy = new RandomHostSelectionStrategy();33        String host = strategy.selectRandom(hosts);34        System.out.println(host);35    }36}37import ru.qatools.gridrouter.config.RandomHostSelectionStrategy;38public class 7 {39    public static void main(String[] args) {40        String[] hosts = {"host1", "host2", "host3", "

selectRandom

Using AI Code Generation

1import ru.qatools.gridrouter.config.RandomHostSelectionStrategy;2import ru.qatools.gridrouter.config.Host;3import java.util.ArrayList;4import java.util.List;5import java.util.Random;6public class 3 {7    public static void main(String[] args) {8        RandomHostSelectionStrategy randomHostSelectionStrategy = new RandomHostSelectionStrategy();9        List<Host> hosts = new ArrayList<Host>();10        Host host1 = new Host();11        host1.setId(1);

selectRandom

Using AI Code Generation

1import ru.qatools.gridrouter.config.RandomHostSelectionStrategy;2import ru.qatools.gridrouter.config.Host;3import java.util.ArrayList;4import java.util.List;5public class 3{6public static void main(String args[]){7RandomHostSelectionStrategy r = new RandomHostSelectionStrategy();8List<Host> hosts = new ArrayList<Host>();9Host h1 = new Host();10Host h2 = new Host();11Host h3 = new Host();12Host h4 = new Host();13h1.setHost("host1");14h1.setPort(4444);15h2.setHost("host2");16h2.setPort(4444);17h3.setHost("host3");18h3.setPort(4444);19h4.setHost("host4");20h4.setPort(4444);21hosts.add(h1);22hosts.add(h2);23hosts.add(h3);24hosts.add(h4);25Host selectedHost = r.selectRandom(hosts);26System.out.println(selectedHost.getHost()+":"+selectedHost.getPort());27}28}29import ru.qatools.gridrouter.config.RandomHostSelectionStrategy;30import ru.qatools.gridrouter.config.Host;31import java.util.ArrayList;32import java.util.List;33public class 4{34public static void main(String args[]){35RandomHostSelectionStrategy r = new RandomHostSelectionStrategy();36List<Host> hosts = new ArrayList<Host>();37Host h1 = new Host();38Host h2 = new Host();39Host h3 = new Host();40Host h4 = new Host();41h1.setHost("host1");42h1.setPort(4444);43h2.setHost("host2");44h2.setPort(4444);45h3.setHost("host3");46h3.setPort(4444);47h4.setHost("host4");48h4.setPort(4444);49hosts.add(h1);50hosts.add(h2);51hosts.add(h3);52hosts.add(h4);53Host selectedHost = r.selectRandom(hosts);54System.out.println(selectedHost.getHost()+":"+selectedHost.getPort());55}56}57import ru.qatools.gridrouter.config.RandomHostSelectionStrategy;58import ru.qatools.gridrouter

selectRandom

Using AI Code Generation

1public class 3 {2    public static void main(String[] args) throws Exception {3        RandomHostSelectionStrategy randomHostSelectionStrategy = new RandomHostSelectionStrategy();4        List<Host> hosts = new ArrayList<>();5        Host host1 = new Host("localhost", 4444);6        Host host2 = new Host("localhost", 5555);7        Host host3 = new Host("localhost", 6666);8        Host host4 = new Host("localhost", 7777);9        hosts.add(host1);10        hosts.add(host2);11        hosts.add(host3);12        hosts.add(host4);13        System.out.println("Randomly selected host is: " + randomHostSelectionStrategy.selectRandom(hosts));14    }15}16public class 4 {17    public static void main(String[] args) throws Exception {18        RandomHostSelectionStrategy randomHostSelectionStrategy = new RandomHostSelectionStrategy();19        List<Host> hosts = new ArrayList<>();20        Host host1 = new Host("localhost", 4444);21        Host host2 = new Host("localhost", 5555);22        Host host3 = new Host("localhost", 6666);23        Host host4 = new Host("localhost", 7777);24        hosts.add(host1);25        hosts.add(host2);26        hosts.add(host3);27        hosts.add(host4);28        System.out.println("Randomly selected host is: " + randomHostSelectionStrategy.selectRandom(hosts));29    }30}31public class 5 {32    public static void main(String[] args) throws Exception {33        RandomHostSelectionStrategy randomHostSelectionStrategy = new RandomHostSelectionStrategy();34        List<Host> hosts = new ArrayList<>();35        Host host1 = new Host("localhost", 4444);36        Host host2 = new Host("localhost", 5555);37        Host host3 = new Host("localhost", 6666);38        Host host4 = new Host("localhost", 7777);39        hosts.add(host1);40        hosts.add(host2);41        hosts.add(host3);42        hosts.add(host4);43        System.out.println("Randomly selected host is: " + randomHostSelectionStrategy.selectRandom(hosts));

selectRandom

Using AI Code Generation

1import ru.qatools.gridrouter.config.RandomHostSelectionStrategy;2import ru.qatools.gridrouter.config.Host;3import ru.qatools.gridrouter.config.Hosts;4import ru.qatools.gridrouter.config.HostsReader;5import ru.qatools.gridrouter.config.HostsReaderException;6import java.io.File;7import java.io.IOException;8import java.util.List;9import java.util.ArrayList;10import java.util.Arrays;11import java.util.Random;12import java.util.Collections;13import java.util.Comparator;14import java.util.concurrent.ThreadLocalRandom;15public class RandomHostSelectionStrategy {16    public static void main(String[] args) throws IOException, HostsReaderException {17        HostsReader reader = new HostsReader();18        Hosts hosts = reader.read(new File("hosts.json"));19        List<Host> hostsList = hosts.getHosts();20        int size = hostsList.size();21        Random rand = new Random();22        int randomNum = rand.nextInt(size);23        System.out.println("Random host is " + hostsList.get(randomNum).getHost());24    }25}26import ru.qatools.gridrouter.config.RandomHostSelectionStrategy;27import ru.qatools.gridrouter.config.Host;28import ru.qatools.gridrouter.config.Hosts;29import ru.qatools.gridrouter.config.HostsReader;30import ru.qatools.gridrouter.config.HostsReaderException;31import java.io.File;32import java.io.IOException;33import java.util.List;34import java.util.ArrayList;35import java.util.Arrays;36import java.util.Random;37import java.util.Collections;38import java.util.Comparator;39import java.util.concurrent.ThreadLocalRandom;40public class RandomHostSelectionStrategy {41    public static void main(String[] args) throws IOException, HostsReaderException {42        HostsReader reader = new HostsReader();43        Hosts hosts = reader.read(new File("hosts.json"));44        List<Host> hostsList = hosts.getHosts();45        int size = hostsList.size();46        Random rand = new Random();47        int randomNum = rand.nextInt(size);48        System.out.println("Random host is " + hostsList.get(randomNum).getHost());49    }50}

selectRandom

Using AI Code Generation

1import ru.qatools.gridrouter.config.RandomHostSelectionStrategy;2import java.util.ArrayList;3import java.util.List;4public class 3 {5    public static void main(String[] args) {6        RandomHostSelectionStrategy randomHostSelectionStrategy = new RandomHostSelectionStrategy();7        List<String> hosts = new ArrayList<String>();8        hosts.add("host1");9        hosts.add("host2");10        hosts.add("host3");11        String selectedHost = randomHostSelectionStrategy.selectRandom(hosts);12        System.out.println("Selected host is: " + selectedHost);13    }14}

selectRandom

Using AI Code Generation

1package ru.qatools.gridrouter.config;2import java.util.ArrayList;3import java.util.List;4public class SelectRandom {5    public static void main(String[] args) {6        List<String> hostList = new ArrayList<String>();7        hostList.add("

selectRandom

Using AI Code Generation

1package ru.qatools.gridrouter.config;2import java.util.List;3import java.util.ArrayList;4import java.util.Arrays;5import java.util.Collections;6import java.util.HashSet;7import java.util.Set;8import java.util.Random;9import java.util.concurrent.ThreadLocalRandom;10import java.util.concurrent.atomic.AtomicLong;11import java.util.stream.IntStream;12import java.util.stream.Collectors;13import java.util.stream.Stream;14import java.util.stream.StreamSupport;15import java.util.stream.LongStream;16import java.util.stream.DoubleStream;17import java.util.stream.IntStream;18import java.util.stream.LongStream;19import java.util.stream.Stream;20import java.util.stream.StreamSupport;21import java.util.stream.DoubleStream;22import java.util.stream.Collectors;23import java.util.stream.Stream;24import java.util.stream.StreamSupport;25import java.util.stream.DoubleStream;26import java.util.stream.Collectors;27import java.util.stream.Stream;28import java.util.stream.StreamSupport;29import java.util.stream.DoubleStream;30import java.util.stream.Collectors;31import java.util.stream.Stream;32import java.util.stream.StreamSupport;33import java.util.stream.DoubleStream;34import java.util.stream.Collectors;35import java.util.stream.Stream;36import java.util.stream.StreamSupport;37import java.util.stream.DoubleStream;38import java.util.stream.Collectors;39import java.util.stream.Stream;40import java.util.stream.StreamSupport;41import java.util.stream.DoubleStream;42import java.util.stream.Collectors;43import java.util.stream.Stream;44import java.util.stream.StreamSupport;45import java.util.stream.DoubleStream;46import java.util.stream.Collectors;47import java.util.stream.Stream;48import java.util.stream.StreamSupport;49import java.util.stream.DoubleStream;50import java.util.stream.Collectors;51import java.util.stream.Stream;52import java.util.stream.StreamSupport;53import java.util.stream.DoubleStream;54import java.util.stream.Collectors;55import java.util.stream.Stream;56import java.util.stream.StreamSupport;57import java.util.stream.DoubleStream;58import java.util.stream.Collectors;59import java.util.stream.Stream;60import java.util.stream.StreamSupport;61import java.util.stream.DoubleStream;62import java.util.stream.Collectors;63import java.util.stream.Stream;64import java.util.stream.StreamSupport;65import java.util.stream.DoubleStream;66import java.util.stream.Collectors;67import java.util.stream.Stream;68import java.util.stream.StreamSupport;69import java.util.stream.DoubleStream;70import java.util.stream.Collectors;71import java.util.stream.Stream;72import java.util.stream.StreamSupport;73import java.util.stream.DoubleStream;74import java.util.stream.Collectors;75import java.util.stream.Stream;76import java.util.stream.StreamSupport;77import java.util.stream.DoubleStream;

selectRandom

Using AI Code Generation

1import ru.qatools.gridrouter.config.RandomHostSelectionStrategy;2import ru.qatools.gridrouter.config.Host;3import java.util.List;4import java.util.ArrayList;5public class 3 {6public static void main(String[] args) {7RandomHostSelectionStrategy randomHostSelectionStrategy = new RandomHostSelectionStrategy();8List<Host> hosts = new ArrayList<Host>();9Host host1 = new Host();10Host host2 = new Host();11Host host3 = new Host();12hosts.add(host1);13hosts.add(host2);14hosts.add(host3);15Host host = randomHostSelectionStrategy.selectRandom(hosts);16System.out.println(host.getHost());17}18}

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