Example usage for java.util.function Predicate and

Introduction

In this page you can find the example usage for java.util.function Predicate and.

Prototype

default Predicate<T> and(Predicate<? super T> other) 

Source Link

Document

Returns a composed predicate that represents a short-circuiting logical AND of this predicate and another.

Usage

From source file:Main.java

public static void main(String[] args) {
    Predicate<String> i = (s) -> s.length() > 5;
    Predicate<String> j = (s) -> s.length() < 3;

    System.out.println(i.and(j).test("java2s.com "));
}

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From source file:Main.java

public static void main(String[] args) {
    Predicate<String> a = (input) -> input.contains("a");
    Predicate<String> b = (input) -> input.contains("b");

    System.out.println("test ac:" + a.and(b).test("ac"));
    System.out.println("test bc:" + a.and(b).test("bc"));
    System.out.println("test ab:" + a.and(b).test("ab"));

}

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From source file:Main.java

public static void main(String[] args) {
    Predicate<Student> isPaidEnough = e -> e.gpa > 1;
    Predicate<Student> isExperiencedEnough = e -> e.id < 10;

    List<Student> students = Arrays.asList(new Student(1, 3, "John"), new Student(2, 4, "Jane"),
            new Student(3, 3, "Jack"));

    System.out.println(findStudents(students, isPaidEnough));
    System.out.println(findStudents(students, isExperiencedEnough));
    System.out.println(findStudents(students, isExperiencedEnough.and(isPaidEnough)));

    Student somebody = students.get(0);//from ww w.j  a  v  a2 s .c om
    System.out.println(findStudents(students, Predicate.<Student>isEqual(somebody)));
}

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From source file:cn.lambdalib.util.mc.Raytrace.java

/**
 * Performs a RayTrace starting from the target entity's eye towards its looking direction.
 * The trace will automatically ignore the target entity.
 *///from   w  w  w.  ja v a2 s. c  o m
public static MovingObjectPosition traceLiving(Entity entity, double dist, Predicate<Entity> pred,
        IBlockSelector blockSel) {
    Motion3D mo = new Motion3D(entity, true);
    Vec3 v1 = mo.getPosVec(), v2 = mo.move(dist).getPosVec();

    Predicate<Entity> exclude = EntitySelectors.exclude(entity);

    return perform(entity.worldObj, v1, v2, pred == null ? exclude : exclude.and(pred), blockSel);
}

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From source file:dk.dma.ais.view.rest.QueryParameterHelper.java

private static Predicate<AisPacket> getSourceFilter(UriInfo info) {
    List<String> filters = QueryParameterValidators.getParameters(info, "filter");

    if (filters.isEmpty()) {
        return null;
    }/* w w  w . ja v  a  2s.  com*/
    Predicate<AisPacket> p = AisPacketFilters.parseSourceFilter(filters.get(0));
    for (int i = 1; i < filters.size(); i++) {
        p = p.and(AisPacketFilters.parseSourceFilter(filters.get(i)));
    }
    return p;
}

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From source file:dk.dma.ais.view.rest.QueryParameterHelper.java

/**
 *///from  w  w  w  .ja  v a2 s . co  m
private static Predicate<AisPacket> getPacketFilter(UriInfo info) {
    List<String> filters = QueryParameterValidators.getParameters(info, "filter");
    if (filters.isEmpty()) {
        return null;
    }

    Predicate<AisPacket> p = AisPacketFilters.parseExpressionFilter(filters.get(0));
    for (int i = 1; i < filters.size(); i++) {
        p = p.and(AisPacketFilters.parseExpressionFilter(filters.get(i)));
    }
    return p;
}

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From source file:dk.dma.ais.view.rest.QueryParameterHelper.java

private static Predicate<AisPacketSource> getPacketSourceFilter(UriInfo info) {
    List<String> filters = QueryParameterValidators.getParameters(info, "filter");
    if (filters.isEmpty()) {
        return null;
    }/*from   w  w w . j ava2s.  c om*/

    Predicate<AisPacketSource> p = null;
    try {
        p = AisPacketSource.createPredicate(filters.get(0));
        for (int i = 1; i < filters.size(); i++) {
            p = p.and(AisPacketSource.createPredicate(filters.get(i)));
        }
    } catch (NullPointerException e) {

    }

    return p;
}

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From source file:dk.dma.ais.track.rest.resource.TrackResource.java

/** Create a Predicate<TargetInfo> out of user supplied mmsi and area information */
static Predicate<TargetInfo> createTargetFilterPredicate(Set<Integer> mmsis, Set<Area> baseAreas,
        Set<Area> areas) {
    Predicate<TargetInfo> mmsiPredicate = null;
    if (mmsis != null && mmsis.size() > 0) {
        mmsiPredicate = targetInfo -> mmsis.contains(targetInfo.getMmsi());
    }//w  w w . java 2s  . c om

    Predicate<TargetInfo> baseAreaPredicate = null;
    if (baseAreas != null && baseAreas.size() > 0) {
        baseAreaPredicate = targetInfo -> baseAreas.stream()
                .anyMatch(area -> targetInfo.getPosition() != null && area.contains(targetInfo.getPosition()));
    }

    Predicate<TargetInfo> areaPredicate = null;
    if (areas != null && areas.size() > 0) {
        areaPredicate = targetInfo -> areas.stream()
                .anyMatch(area -> targetInfo.getPosition() != null && area.contains(targetInfo.getPosition()));
    }

    Predicate<TargetInfo> resultingAreaPredicate = null;
    if (baseAreaPredicate != null && areaPredicate == null) {
        resultingAreaPredicate = baseAreaPredicate;
    } else if (baseAreaPredicate != null && areaPredicate != null) {
        resultingAreaPredicate = baseAreaPredicate.and(areaPredicate);
    } else {
        resultingAreaPredicate = areaPredicate;
    }

    if (mmsiPredicate == null && resultingAreaPredicate == null)
        return t -> true;
    else if (mmsiPredicate != null && resultingAreaPredicate == null)
        return mmsiPredicate;
    else if (mmsiPredicate == null && resultingAreaPredicate != null)
        return resultingAreaPredicate;
    else
        return mmsiPredicate.or(resultingAreaPredicate);
}

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From source file:io.github.mywarp.mywarp.command.InformativeCommands.java

@Command(aliases = { "list", "alist" }, desc = "list.description", help = "list.help")
@Require("mywarp.cmd.list")
@Billable(FeeType.LIST)/*from  ww  w.j a  v a 2  s.c om*/
public void list(final Actor actor, @OptArg("1") int page, @Switch('c') final String creator,
        @Switch('n') final String name,
        @Switch('r') @Range(min = 1, max = Integer.MAX_VALUE) final Integer radius,
        @Switch('w') final String world) throws IllegalCommandSenderException {

    // build the listing predicate
    Predicate<Warp> filter = authorizationResolver.isViewable(actor);

    if (creator != null) {
        filter = filter.and(input -> {
            Optional<String> creatorName = playerNameResolver.getByUniqueId(input.getCreator());
            return creatorName.isPresent() && StringUtils.containsIgnoreCase(creatorName.get(), creator);
        });
    }

    if (name != null) {
        filter = filter.and(input -> StringUtils.containsIgnoreCase(input.getName(), name));
    }

    if (radius != null) {
        if (!(actor instanceof LocalEntity)) {
            throw new IllegalCommandSenderException(actor);
        }

        LocalEntity entity = (LocalEntity) actor;

        final UUID worldId = entity.getWorld().getUniqueId();

        final int squaredRadius = radius * radius;
        final Vector3d position = entity.getPosition();
        filter = filter.and(input -> input.getWorldIdentifier().equals(worldId)
                && input.getPosition().distanceSquared(position) <= squaredRadius);
    }

    if (world != null) {
        filter = filter.and(input -> {
            Optional<LocalWorld> worldOptional = game.getWorld(input.getWorldIdentifier());
            return worldOptional.isPresent()
                    && StringUtils.containsIgnoreCase(worldOptional.get().getName(), world);
        });
    }

    //query the warps
    //noinspection RedundantTypeArguments
    final List<Warp> warps = Ordering.natural().sortedCopy(warpManager.getAll(filter));

    Function<Warp, Message> mapping = input -> {
        // 'name' (world) by player
        Message.Builder builder = Message.builder();
        builder.append("'");
        builder.append(input);
        builder.append("' (");
        builder.append(CommandUtil.toWorldName(input.getWorldIdentifier(), game));
        builder.append(") ");
        builder.append(msg.getString("list.by"));
        builder.append(" ");

        if (actor instanceof LocalPlayer && input.isCreator(((LocalPlayer) actor).getUniqueId())) {
            builder.append(msg.getString("list.you"));
        } else {
            builder.append(CommandUtil.toName(input.getCreator(), playerNameResolver));
        }
        return builder.build();
    };

    // display
    StringPaginator.of(msg.getString("list.heading"), warps).withMapping(mapping::apply).paginate()
            .display(actor, page);
}

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From source file:controller.PlayController.java

public List<Play> filterPlays(Play play, List<Play> plays) {
    Predicate<Play> selector = p -> p != null;
    String playName = play.getPlayName();
    Integer ticketPrice = play.getTicketPrice();
    if (playName != null && !playName.equals("")) {
        selector = selector.and(p -> p.getPlayName().equals(playName));
    }// ww  w. j a va  2 s  . c om
    if (play.getStartTime() != null) {
        Time startTime = Time.valueOf(play.getStartTime().toString());
        selector = selector.and(p -> (p.getStartTime().after(startTime) || p.getStartTime().equals(startTime)));
    }
    if (play.getEndTime() != null) {
        Time endTime = Time.valueOf(play.getEndTime().toString());
        selector = selector.and(p -> (p.getEndTime().before(endTime) || p.getEndTime().equals(endTime)));
    }
    if (play.getStartDate() != null) {
        Date startDate = Date.valueOf(play.getStartDate().toString());
        selector = selector.and(p -> p.getStartDate().equals(startDate));
    }
    if (ticketPrice != 0) {
        selector = selector.and(p -> p.getTicketPrice() == ticketPrice);
    }
    return lambdaFilter(selector, plays);
}

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