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(yegor256#1226) Replaced AndInThreads(Proc, ...) with ForEachInThreads
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,90 @@ | ||
| /* | ||
| * The MIT License (MIT) | ||
| * | ||
| * Copyright (c) 2017-2019 Yegor Bugayenko | ||
| * | ||
| * Permission is hereby granted, free of charge, to any person obtaining a copy | ||
| * of this software and associated documentation files (the "Software"), to deal | ||
| * in the Software without restriction, including without limitation the rights | ||
| * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
| * copies of the Software, and to permit persons to whom the Software is | ||
| * furnished to do so, subject to the following conditions: | ||
| * | ||
| * The above copyright notice and this permission notice shall be included | ||
| * in all copies or substantial portions of the Software. | ||
| * | ||
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
| * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE | ||
| * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | ||
| * SOFTWARE. | ||
| */ | ||
| package org.cactoos.iterator; | ||
|
|
||
| import org.cactoos.Func; | ||
| import org.cactoos.Proc; | ||
| import org.cactoos.func.FuncOf; | ||
| import org.cactoos.iterable.IterableOf; | ||
| import org.cactoos.scalar.AndInThreads; | ||
|
|
||
| /** | ||
| * Executes a {@link org.cactoos.Proc} for each element of an | ||
| * {@link java.lang.Iterable} | ||
| * | ||
| * <p> | ||
| * This class can be effectively used to iterate through a collection, just like | ||
| * {@link java.util.stream.Stream#forEach(java.util.function.Consumer)} works: | ||
| * </p> | ||
| * | ||
| * {@code | ||
| * new ForEach( | ||
| * new ProcOf<>(input -> System.out.printf("\'%s\' ", input)), | ||
| * ).execute( | ||
| * new IterableOf<>("Mary", "John", "William", "Napkin") | ||
| * ); // will print 'Mary' 'John' 'William' 'Napkin' to standard output | ||
| * } | ||
| * <p> | ||
| * There is no thread-safety guarantee. | ||
| * | ||
| * @param <X> The type to itetare over | ||
| * @since 0.44 | ||
| */ | ||
| public final class ForEachInThreads<X> implements Proc<Iterable<X>> { | ||
|
|
||
| /** | ||
| * The proc. | ||
| */ | ||
| private final Func<X, Boolean> wrapped; | ||
|
|
||
| /** | ||
| * Ctor. | ||
| * | ||
| * @param proc The proc to execute | ||
| */ | ||
| public ForEachInThreads(final Proc<X> proc) { | ||
| this.wrapped = new FuncOf<>( | ||
| proc, true | ||
| ); | ||
| } | ||
|
|
||
| /** | ||
| * Ctor. | ||
| * | ||
| * @param src The iterable | ||
| * @exception Exception If fails | ||
| */ | ||
| @SafeVarargs | ||
| public final void exec(final X... src) throws Exception { | ||
| this.exec(new IterableOf<>(src)); | ||
| } | ||
|
|
||
| @Override | ||
| public void exec(final Iterable<X> input) throws Exception { | ||
| new AndInThreads( | ||
| this.wrapped, input | ||
| ).value(); | ||
| } | ||
|
|
||
| } |
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118 changes: 118 additions & 0 deletions
118
src/test/java/org/cactoos/iterator/ForEachInThreadsTest.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,118 @@ | ||
| /* | ||
| * The MIT License (MIT) | ||
| * | ||
| * Copyright (c) 2017-2019 Yegor Bugayenko | ||
| * | ||
| * Permission is hereby granted, free of charge, to any person obtaining a copy | ||
| * of this software and associated documentation files (the "Software"), to deal | ||
| * in the Software without restriction, including without limitation the rights | ||
| * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
| * copies of the Software, and to permit persons to whom the Software is | ||
| * furnished to do so, subject to the following conditions: | ||
| * | ||
| * The above copyright notice and this permission notice shall be included | ||
| * in all copies or substantial portions of the Software. | ||
| * | ||
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
| * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE | ||
| * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | ||
| * SOFTWARE. | ||
| */ | ||
| package org.cactoos.iterator; | ||
|
|
||
| import java.util.ArrayList; | ||
| import java.util.List; | ||
| import org.cactoos.Proc; | ||
| import org.cactoos.func.ProcNoNulls; | ||
| import org.cactoos.list.ListOf; | ||
| import org.cactoos.list.Synced; | ||
| import org.hamcrest.Matcher; | ||
| import org.hamcrest.collection.IsIterableContainingInAnyOrder; | ||
| import org.junit.Test; | ||
| import org.llorllale.cactoos.matchers.Assertion; | ||
| import org.llorllale.cactoos.matchers.MatcherOf; | ||
|
|
||
| /** | ||
| * Test case for {@link ForEachInThreads}. | ||
| * | ||
| * @since 0.44 | ||
| * @checkstyle JavadocMethodCheck (500 lines) | ||
| */ | ||
| public class ForEachInThreadsTest { | ||
|
|
||
| @Test | ||
| public void testProcIterable() throws Exception { | ||
| final List<Integer> list = new Synced<>( | ||
| new ArrayList<>( | ||
| 2 | ||
| ) | ||
| ); | ||
| new ForEachInThreads<Integer>( | ||
| new ProcNoNulls<Integer>( | ||
| list::add | ||
| ) | ||
| ).exec( | ||
| new ListOf<>( | ||
| 1, 2 | ||
| ) | ||
| ); | ||
| new Assertion<>( | ||
| "List does not contain mapped Iterable elements (1)", list, | ||
| new IsIterableContainingInAnyOrder<Integer>( | ||
| new ListOf<Matcher<? super Integer>>( | ||
| new MatcherOf<>( | ||
| value -> { | ||
| return value.equals( | ||
| 1 | ||
| ); | ||
| } | ||
| ), new MatcherOf<>( | ||
| value -> { | ||
| return value.equals( | ||
| 2 | ||
| ); | ||
| } | ||
| ) | ||
| ) | ||
| ) | ||
| ).affirm(); | ||
| } | ||
|
|
||
| @Test | ||
| public void testProcVarargs() throws Exception { | ||
| final List<Integer> list = new Synced<>( | ||
| new ArrayList<>( | ||
| 2 | ||
| ) | ||
| ); | ||
| new ForEachInThreads<Integer>( | ||
| (Proc<Integer>) list::add | ||
| ).exec( | ||
| 1, 1 | ||
| ); | ||
| new Assertion<>( | ||
| "List does not contain mapped Iterable elements (2)", list, | ||
| new IsIterableContainingInAnyOrder<Integer>( | ||
| new ListOf<Matcher<? super Integer>>( | ||
| new MatcherOf<>( | ||
| value -> { | ||
| return value.equals( | ||
| 1 | ||
| ); | ||
| } | ||
| ), new MatcherOf<>( | ||
| value -> { | ||
| return value.equals( | ||
| 1 | ||
| ); | ||
| } | ||
| ) | ||
| ) | ||
| ) | ||
| ).affirm(); | ||
| } | ||
|
|
||
| } |
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