package org.infinispan.util;
import java.util.Comparator;
import java.util.Iterator;
import java.util.Optional;
import java.util.Set;
import java.util.Spliterator;
import java.util.concurrent.TimeUnit;
import java.util.function.BiConsumer;
import java.util.function.BiFunction;
import java.util.function.BinaryOperator;
import java.util.function.Consumer;
import java.util.function.Function;
import java.util.function.IntFunction;
import java.util.function.Predicate;
import java.util.function.Supplier;
import java.util.function.ToDoubleFunction;
import java.util.function.ToIntFunction;
import java.util.function.ToLongFunction;
import java.util.stream.Collector;
import java.util.stream.DoubleStream;
import java.util.stream.IntStream;
import java.util.stream.LongStream;
import java.util.stream.Stream;
import org.infinispan.Cache;
import org.infinispan.CacheStream;
import org.infinispan.DoubleCacheStream;
import org.infinispan.IntCacheStream;
import org.infinispan.LongCacheStream;
import org.infinispan.util.function.SerializableBiConsumer;
import org.infinispan.util.function.SerializableBiFunction;
import org.infinispan.util.function.SerializableBinaryOperator;
import org.infinispan.util.function.SerializableComparator;
import org.infinispan.util.function.SerializableConsumer;
import org.infinispan.util.function.SerializableFunction;
import org.infinispan.util.function.SerializableIntFunction;
import org.infinispan.util.function.SerializablePredicate;
import org.infinispan.util.function.SerializableSupplier;
import org.infinispan.util.function.SerializableToDoubleFunction;
import org.infinispan.util.function.SerializableToIntFunction;
import org.infinispan.util.function.SerializableToLongFunction;
/**
* Delegate that forwards all the of the method calls to the underlying cache stream. It is assumed that a CacheStream
* is returned for all intermediate operations.
*/
public class AbstractDelegatingCacheStream<R> implements CacheStream<R> {
protected CacheStream<?> underlyingStream;
public AbstractDelegatingCacheStream(CacheStream<R> stream) {
this.underlyingStream = stream;
}
private CacheStream<R> castStream(CacheStream stream) {
return stream;
}
@Override
public CacheStream<R> sequentialDistribution() {
underlyingStream = underlyingStream.sequentialDistribution();
return this;
}
@Override
public CacheStream<R> parallelDistribution() {
underlyingStream = underlyingStream.parallelDistribution();
return this;
}
@Override
public CacheStream<R> filterKeySegments(Set<Integer> segments) {
underlyingStream = underlyingStream.filterKeySegments(segments);
return this;
}
@Override
public CacheStream<R> filterKeys(Set<?> keys) {
underlyingStream = underlyingStream.filterKeys(keys);
return this;
}
@Override
public CacheStream<R> distributedBatchSize(int batchSize) {
underlyingStream = underlyingStream.distributedBatchSize(batchSize);
return this;
}
@Override
public CacheStream<R> segmentCompletionListener(SegmentCompletionListener listener) {
underlyingStream = underlyingStream.segmentCompletionListener(listener);
return this;
}
@Override
public CacheStream<R> disableRehashAware() {
underlyingStream = underlyingStream.disableRehashAware();
return this;
}
@Override
public CacheStream<R> timeout(long timeout, TimeUnit unit) {
underlyingStream = underlyingStream.timeout(timeout, unit);
return this;
}
@Override
public void forEach(Consumer<? super R> action) {
castStream(underlyingStream).forEach(action);
}
@Override
public void forEach(SerializableConsumer<? super R> action) {
castStream(underlyingStream).forEach(action);
}
@Override
public <K, V> void forEach(BiConsumer<Cache<K, V>, ? super R> action) {
castStream(underlyingStream).forEach(action);
}
@Override
public <K, V> void forEach(SerializableBiConsumer<Cache<K, V>, ? super R> action) {
castStream(underlyingStream).forEach(action);
}
@Override
public void forEachOrdered(Consumer<? super R> action) {
castStream(underlyingStream).forEachOrdered(action);
}
@Override
public Object[] toArray() {
return underlyingStream.toArray();
}
@Override
public <A> A[] toArray(IntFunction<A[]> generator) {
return underlyingStream.toArray(generator);
}
@Override
public <A> A[] toArray(SerializableIntFunction<A[]> generator) {
return underlyingStream.toArray(generator);
}
@Override
public R reduce(R identity, BinaryOperator<R> accumulator) {
return castStream(underlyingStream).reduce(identity, accumulator);
}
@Override
public R reduce(R identity, SerializableBinaryOperator<R> accumulator) {
return castStream(underlyingStream).reduce(identity, accumulator);
}
@Override
public Optional<R> reduce(BinaryOperator<R> accumulator) {
return castStream(underlyingStream).reduce(accumulator);
}
@Override
public Optional<R> reduce(SerializableBinaryOperator<R> accumulator) {
return castStream(underlyingStream).reduce(accumulator);
}
@Override
public <U> U reduce(U identity, BiFunction<U, ? super R, U> accumulator, BinaryOperator<U> combiner) {
return castStream(underlyingStream).reduce(identity, accumulator, combiner);
}
@Override
public <U> U reduce(U identity, SerializableBiFunction<U, ? super R, U> accumulator, SerializableBinaryOperator<U> combiner) {
return castStream(underlyingStream).reduce(identity, accumulator, combiner);
}
@Override
public <R1> R1 collect(Supplier<R1> supplier, BiConsumer<R1, ? super R> accumulator, BiConsumer<R1, R1> combiner) {
return castStream(underlyingStream).collect(supplier, accumulator, combiner);
}
@Override
public <R1> R1 collect(SerializableSupplier<R1> supplier, SerializableBiConsumer<R1, ? super R> accumulator, SerializableBiConsumer<R1, R1> combiner) {
return castStream(underlyingStream).collect(supplier, accumulator, combiner);
}
@Override
public Iterator<R> iterator() {
return castStream(underlyingStream).iterator();
}
@Override
public Spliterator<R> spliterator() {
return castStream(underlyingStream).spliterator();
}
@Override
public boolean isParallel() {
return underlyingStream.isParallel();
}
@Override
public CacheStream<R> sequential() {
underlyingStream = underlyingStream.sequential();
return this;
}
@Override
public CacheStream<R> parallel() {
underlyingStream = underlyingStream.parallel();
return this;
}
@Override
public CacheStream<R> unordered() {
underlyingStream = underlyingStream.unordered();
return this;
}
@Override
public CacheStream<R> onClose(Runnable closeHandler) {
underlyingStream = underlyingStream.onClose(closeHandler);
return this;
}
@Override
public void close() {
underlyingStream.close();
}
@Override
public CacheStream<R> sorted() {
underlyingStream = underlyingStream.sorted();
return this;
}
@Override
public CacheStream<R> sorted(Comparator<? super R> comparator) {
underlyingStream = castStream(underlyingStream).sorted(comparator);
return this;
}
@Override
public CacheStream<R> sorted(SerializableComparator<? super R> comparator) {
underlyingStream = castStream(underlyingStream).sorted(comparator);
return this;
}
@Override
public CacheStream<R> peek(Consumer<? super R> action) {
underlyingStream = castStream(underlyingStream).peek(action);
return this;
}
@Override
public CacheStream<R> peek(SerializableConsumer<? super R> action) {
underlyingStream = castStream(underlyingStream).peek(action);
return this;
}
@Override
public CacheStream<R> limit(long maxSize) {
underlyingStream = underlyingStream.limit(maxSize);
return this;
}
@Override
public CacheStream<R> skip(long n) {
underlyingStream = underlyingStream.limit(n);
return this;
}
@Override
public CacheStream<R> filter(Predicate<? super R> predicate) {
underlyingStream = castStream(underlyingStream).filter(predicate);
return this;
}
@Override
public CacheStream<R> filter(SerializablePredicate<? super R> predicate) {
underlyingStream = castStream(underlyingStream).filter(predicate);
return this;
}
@Override
public <R1> CacheStream<R1> map(Function<? super R, ? extends R1> mapper) {
underlyingStream = castStream(underlyingStream).map(mapper);
return (CacheStream<R1>) this;
}
@Override
public <R1> CacheStream<R1> map(SerializableFunction<? super R, ? extends R1> mapper) {
underlyingStream = castStream(underlyingStream).map(mapper);
return (CacheStream<R1>) this;
}
@Override
public <R1> CacheStream<R1> flatMap(Function<? super R, ? extends Stream<? extends R1>> mapper) {
underlyingStream = castStream(underlyingStream).flatMap(mapper);
return (CacheStream<R1>) this;
}
@Override
public <R1> CacheStream<R1> flatMap(SerializableFunction<? super R, ? extends Stream<? extends R1>> mapper) {
underlyingStream = castStream(underlyingStream).flatMap(mapper);
return (CacheStream<R1>) this;
}
@Override
public CacheStream<R> distinct() {
underlyingStream = underlyingStream.distinct();
return this;
}
@Override
public <R1, A> R1 collect(Collector<? super R, A, R1> collector) {
return castStream(underlyingStream).collect(collector);
}
@Override
public Optional<R> min(Comparator<? super R> comparator) {
return castStream(underlyingStream).min(comparator);
}
@Override
public Optional<R> min(SerializableComparator<? super R> comparator) {
return castStream(underlyingStream).min(comparator);
}
@Override
public Optional<R> max(Comparator<? super R> comparator) {
return castStream(underlyingStream).max(comparator);
}
@Override
public Optional<R> max(SerializableComparator<? super R> comparator) {
return castStream(underlyingStream).max(comparator);
}
@Override
public long count() {
return underlyingStream.count();
}
@Override
public boolean anyMatch(Predicate<? super R> predicate) {
return castStream(underlyingStream).anyMatch(predicate);
}
@Override
public boolean anyMatch(SerializablePredicate<? super R> predicate) {
return castStream(underlyingStream).anyMatch(predicate);
}
@Override
public boolean allMatch(Predicate<? super R> predicate) {
return castStream(underlyingStream).allMatch(predicate);
}
@Override
public boolean allMatch(SerializablePredicate<? super R> predicate) {
return castStream(underlyingStream).allMatch(predicate);
}
@Override
public boolean noneMatch(Predicate<? super R> predicate) {
return castStream(underlyingStream).noneMatch(predicate);
}
@Override
public boolean noneMatch(SerializablePredicate<? super R> predicate) {
return castStream(underlyingStream).noneMatch(predicate);
}
@Override
public Optional<R> findFirst() {
return castStream(underlyingStream).findFirst();
}
@Override
public Optional<R> findAny() {
return castStream(underlyingStream).findAny();
}
@Override
public IntCacheStream mapToInt(ToIntFunction<? super R> mapper) {
throw new UnsupportedOperationException("Primitive delegate is not yet supported!");
}
@Override
public IntCacheStream mapToInt(SerializableToIntFunction<? super R> mapper) {
return mapToInt((ToIntFunction<? super R>) mapper);
}
@Override
public LongCacheStream mapToLong(ToLongFunction<? super R> mapper) {
throw new UnsupportedOperationException("Primitive delegate is not yet supported!");
}
@Override
public LongCacheStream mapToLong(SerializableToLongFunction<? super R> mapper) {
return mapToLong((ToLongFunction<? super R>) mapper);
}
@Override
public DoubleCacheStream mapToDouble(ToDoubleFunction<? super R> mapper) {
throw new UnsupportedOperationException("Primitive delegate is not yet supported!");
}
@Override
public DoubleCacheStream mapToDouble(SerializableToDoubleFunction<? super R> mapper) {
return mapToDouble((ToDoubleFunction<? super R>) mapper);
}
@Override
public IntCacheStream flatMapToInt(Function<? super R, ? extends IntStream> mapper) {
throw new UnsupportedOperationException("Primitive delegate is not yet supported!");
}
@Override
public IntCacheStream flatMapToInt(SerializableFunction<? super R, ? extends IntStream> mapper) {
return flatMapToInt((Function<? super R, ? extends IntStream>) mapper);
}
@Override
public LongCacheStream flatMapToLong(Function<? super R, ? extends LongStream> mapper) {
throw new UnsupportedOperationException("Primitive delegate is not yet supported!");
}
@Override
public LongCacheStream flatMapToLong(SerializableFunction<? super R, ? extends LongStream> mapper) {
return flatMapToLong((Function<? super R, ? extends LongStream>) mapper);
}
@Override
public DoubleCacheStream flatMapToDouble(Function<? super R, ? extends DoubleStream> mapper) {
throw new UnsupportedOperationException("Primitive delegate is not yet supported!");
}
@Override
public DoubleCacheStream flatMapToDouble(SerializableFunction<? super R, ? extends DoubleStream> mapper) {
return flatMapToDouble((Function<? super R, ? extends DoubleStream>) mapper);
}
}