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Added more CompletableFuture utils

This commit is contained in:
Andrea Cavalli 2020-08-27 16:56:54 +02:00
parent 894351e633
commit 4026d9bc9d
7 changed files with 142 additions and 45 deletions
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107
src/main/java/org/warp/commonutils/concurrency/future/CompletableFutureUtils.java
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@ -12,16 +12,107 @@ import java.util.Set;
import java.util.TreeSet;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.CompletionStage;
import java.util.concurrent.Executor;
import java.util.concurrent.ExecutorService;
import java.util.function.Consumer;
import java.util.function.Function;
import java.util.function.Supplier;
import java.util.stream.Collectors;
import org.warp.commonutils.functional.BiCompletableFunction;
import org.warp.commonutils.functional.CompletableFunction;
import org.warp.commonutils.functional.IOCompletableFunction;
import org.warp.commonutils.functional.IOSupplier;
import org.warp.commonutils.functional.TriCompletableFunction;
import org.warp.commonutils.type.FloatPriorityQueue;
import org.warp.commonutils.type.ScoredValue;
public class CompletableFutureUtils {
/**
* Safely get a CompletableFuture or a FailedFuture
*/
public static <T> CompletableFuture<T> getCompletableFuture(Supplier<CompletableFuture<T>> completableFutureSupplier) {
CompletableFuture<T> cf;
try {
cf = completableFutureSupplier.get();
} catch (Exception ex) {
cf = CompletableFuture.failedFuture(ex);
}
return cf;
}
/**
* Safely get a CompletableFuture or a FailedFuture
*/
public static <F, T> CompletableFuture<T> getCompletableFuture(CompletableFunction<F, T> completableFutureFunction, F value) {
return getCompletableFuture(() -> completableFutureFunction.apply(value));
}
/**
* Safely get a CompletableFuture or a FailedFuture
*/
public static <F, T> CompletableFuture<T> getCompletableFutureSupply(CompletableFunction<F, T> completableFutureFunction, Supplier<F> valueSupplier) {
return getCompletableFuture(() -> completableFutureFunction.apply(valueSupplier.get()));
}
/**
* Safely get a CompletableFuture or a FailedFuture
*/
public static <F1, F2, T> CompletableFuture<T> getCompletableFuture(BiCompletableFunction<F1, F2, T> completableFutureFunction, F1 value1, F2 value2) {
return getCompletableFuture(() -> completableFutureFunction.apply(value1, value2));
}
/**
* Safely get a CompletableFuture or a FailedFuture
*/
public static <F1, F2, T> CompletableFuture<T> getCompletableFutureSupply(BiCompletableFunction<F1, F2, T> completableFutureFunction, Supplier<F1> value1Supplier, Supplier<F2> value2Supplier) {
return getCompletableFuture(() -> completableFutureFunction.apply(value1Supplier.get(), value2Supplier.get()));
}
/**
* Safely get a CompletableFuture or a FailedFuture
*/
public static <F1, F2, F3, T> CompletableFuture<T> getCompletableFuture(TriCompletableFunction<F1, F2, F3, T> completableFutureFunction, F1 value1, F2 value2, F3 value3) {
return getCompletableFuture(() -> completableFutureFunction.apply(value1, value2, value3));
}
/**
* Safely get a CompletableFuture or a FailedFuture
*/
public static <F1, F2, F3, T> CompletableFuture<T> getCompletableFutureSupply(TriCompletableFunction<F1, F2, F3, T> completableFutureFunction, Supplier<F1> value1Supplier, Supplier<F2> value2Supplier, Supplier<F3> value3Supplier) {
return getCompletableFuture(() -> completableFutureFunction.apply(value1Supplier.get(), value2Supplier.get(), value3Supplier.get()));
}
////
/**
* Safely get a CompletableFuture or a FailedFuture
*/
public static <T> CompletableFuture<T> getCompletableFutureIO(IOSupplier<CompletableFuture<T>> completableFutureSupplier) {
CompletableFuture<T> cf;
try {
cf = completableFutureSupplier.get();
} catch (Exception ex) {
cf = CompletableFuture.failedFuture(ex);
}
return cf;
}
/**
* Safely get a CompletableFuture or a FailedFuture
*/
public static <F, T> CompletableFuture<T> getCompletableFutureIO(IOCompletableFunction<F, T> completableFutureFunction, F value) {
return getCompletableFutureIO(() -> completableFutureFunction.apply(value));
}
/**
* Safely get a CompletableFuture or a FailedFuture
*/
public static <F, T> CompletableFuture<T> getCompletableFutureIOSupply(IOCompletableFunction<F, T> completableFutureFunction, IOSupplier<F> valueSupplier) {
return getCompletableFutureIO(() -> completableFutureFunction.apply(valueSupplier.get()));
}
/**
* Aggregate multiple {@link CompletableFuture} lists into a single {@link CompletableFuture} list
*
@ -244,12 +335,12 @@ public class CompletableFutureUtils {
futureList.join().parallelStream().map(CompletableFuture::join).forEach(consumer);
}
/**
* Use CompletableFutureUtils.getCompletableFuture(supplier);
*/
@Deprecated
public static <T> CompletableFuture<T> catchUncheckedExceptions(Supplier<CompletableFuture<T>> supplier) {
try {
return supplier.get();
} catch (Exception exception) {
return CompletableFuture.failedFuture(exception);
}
return getCompletableFuture(supplier);
}
public static CompletableFuture<Void> runSequence(Collection<CompletableFuture<?>> collection) {
@ -307,4 +398,10 @@ public class CompletableFutureUtils {
}
return result;
}
public static <U> CompletableFuture<U> composeAsync(
Supplier<? extends CompletionStage<U>> supp,
Executor executor) {
return CompletableFuture.completedFuture(null).thenComposeAsync((_x) -> supp.get(), executor);
}
}

49
src/main/java/org/warp/commonutils/concurrency/future/FutureLockUtils.java
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@ -1,6 +1,5 @@
package org.warp.commonutils.concurrency.future;
import java.io.IOException;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.locks.StampedLock;
import java.util.function.Supplier;
@ -17,18 +16,11 @@ public class FutureLockUtils {
} else {
lockValue = 0;
}
try {
return r.get().whenComplete((x, y) -> {
if (lock != null) {
lock.unlockRead(lockValue);
}
});
} catch (Throwable ex) {
return CompletableFutureUtils.getCompletableFuture(r).whenComplete((result, err) -> {
if (lock != null) {
lock.unlockRead(lockValue);
}
throw ex;
}
});
}
public static <T> CompletableFuture<T> writeLock(@Nullable StampedLock lock, @NotNull Supplier<CompletableFuture<T>> r) {
@ -38,59 +30,38 @@ public class FutureLockUtils {
} else {
lockValue = 0;
}
try {
return r.get().whenComplete((x, y) -> {
if (lock != null) {
lock.unlockWrite(lockValue);
}
});
} catch (Throwable ex) {
return CompletableFutureUtils.getCompletableFuture(r).whenComplete((result, err) -> {
if (lock != null) {
lock.unlockWrite(lockValue);
}
throw ex;
}
});
}
public static <T> CompletableFuture<T> readLockIO(@Nullable StampedLock lock, @NotNull IOSupplier<CompletableFuture<T>> r) throws IOException {
public static <T> CompletableFuture<T> readLockIO(@Nullable StampedLock lock, @NotNull IOSupplier<CompletableFuture<T>> r) {
long lockValue;
if (lock != null) {
lockValue = lock.readLock();
} else {
lockValue = 0;
}
try {
return r.get().whenComplete((x, y) -> {
if (lock != null) {
lock.unlockRead(lockValue);
}
});
} catch (Throwable ex) {
return CompletableFutureUtils.getCompletableFutureIO(r).whenComplete((result, err) -> {
if (lock != null) {
lock.unlockRead(lockValue);
}
throw ex;
}
});
}
public static <T> CompletableFuture<T> writeLockIO(@Nullable StampedLock lock, @NotNull IOSupplier<CompletableFuture<T>> r) throws IOException {
public static <T> CompletableFuture<T> writeLockIO(@Nullable StampedLock lock, @NotNull IOSupplier<CompletableFuture<T>> r) {
long lockValue;
if (lock != null) {
lockValue = lock.writeLock();
} else {
lockValue = 0;
}
try {
return r.get().whenComplete((x, y) -> {
if (lock != null) {
lock.unlockWrite(lockValue);
}
});
} catch (Throwable ex) {
return CompletableFutureUtils.getCompletableFutureIO(r).whenComplete((result, err) -> {
if (lock != null) {
lock.unlockWrite(lockValue);
}
throw ex;
}
});
}
}

7
src/main/java/org/warp/commonutils/functional/BiCompletableFunction.java Normal file
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@ -0,0 +1,7 @@
package org.warp.commonutils.functional;
import java.util.concurrent.CompletableFuture;
public interface BiCompletableFunction<T1, T2, U> {
CompletableFuture<U> apply(T1 value1, T2 value2);
}

7
src/main/java/org/warp/commonutils/functional/CompletableFunction.java Normal file
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@ -0,0 +1,7 @@
package org.warp.commonutils.functional;
import java.util.concurrent.CompletableFuture;
public interface CompletableFunction<T, U> {
CompletableFuture<U> apply(T value);
}

8
src/main/java/org/warp/commonutils/functional/IOCompletableFunction.java Normal file
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@ -0,0 +1,8 @@
package org.warp.commonutils.functional;
import java.io.IOException;
import java.util.concurrent.CompletableFuture;
public interface IOCompletableFunction<T, U> {
CompletableFuture<U> apply(T value) throws IOException;
}

2
src/main/java/org/warp/commonutils/functional/IOFunction.java
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@ -4,5 +4,5 @@ import java.io.IOException;
public interface IOFunction<T, U> {
U run(T data) throws IOException;
U apply(T data) throws IOException;
}

7
src/main/java/org/warp/commonutils/functional/TriCompletableFunction.java Normal file
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@ -0,0 +1,7 @@
package org.warp.commonutils.functional;
import java.util.concurrent.CompletableFuture;
public interface TriCompletableFunction<T1, T2, T3, U> {
CompletableFuture<U> apply(T1 value1, T2 value2, T3 value3);
}