From f23de41a9a0122d4c74759cf121c15bed8efb569 Mon Sep 17 00:00:00 2001 From: Fabricio Cabral Date: Thu, 22 Jun 2017 09:22:32 -0300 Subject: [PATCH] #205: JoinedText --- .../java/org/cactoos/text/JoinedText.java | 113 ++++++++++++++++++ .../java/org/cactoos/text/JoinedTextTest.java | 64 ++++++++++ 2 files changed, 177 insertions(+) create mode 100644 src/main/java/org/cactoos/text/JoinedText.java create mode 100644 src/test/java/org/cactoos/text/JoinedTextTest.java diff --git a/src/main/java/org/cactoos/text/JoinedText.java b/src/main/java/org/cactoos/text/JoinedText.java new file mode 100644 index 0000000000..b886bea385 --- /dev/null +++ b/src/main/java/org/cactoos/text/JoinedText.java @@ -0,0 +1,113 @@ +/** + * The MIT License (MIT) + * + * Copyright (c) 2017 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.text; + +import java.io.IOException; +import java.util.StringJoiner; +import org.cactoos.Text; +import org.cactoos.list.ArrayAsIterable; +import org.cactoos.list.MappedIterable; + +/** + * Join a Text. + * + *

There is no thread-safety guarantee. + * + * @author Fabricio Cabral (fabriciofx@gmail.com) + * @version $Id$ + * @since 0.9 + */ +public final class JoinedText implements Text { + + /** + * The texts. + */ + private final Iterable texts; + + /** + * The delimiter. + */ + private final Text delimiter; + + /** + * Ctor. + * @param delimiter Delimit among texts + * @param texts Texts to be joined + */ + public JoinedText(final String delimiter, final String... texts) { + this( + new StringAsText(delimiter), + new MappedIterable<>( + new ArrayAsIterable<>(texts), + text -> new StringAsText(text) + ) + ); + } + + /** + * Ctor. + * @param delimiter Delimit among texts + * @param texts Texts to be joined + */ + public JoinedText(final String delimiter, final Text... texts) { + this(delimiter, new ArrayAsIterable<>(texts)); + } + + /** + * Ctor. + * @param delimiter Delimit among texts + * @param texts Texts to be joined + */ + public JoinedText(final String delimiter, final Iterable texts) { + this(new StringAsText(delimiter), texts); + } + + /** + * Ctor. + * @param delimiter Delimit among texts + * @param texts Texts to be joined + */ + public JoinedText(final Text delimiter, final Text... texts) { + this(delimiter, new ArrayAsIterable<>(texts)); + } + + /** + * Ctor. + * @param delimiter Delimit among texts + * @param texts Texts to be joined + */ + public JoinedText(final Text delimiter, final Iterable texts) { + this.delimiter = delimiter; + this.texts = texts; + } + + @Override + public String asString() throws IOException { + final StringJoiner joint = new StringJoiner(this.delimiter.asString()); + for (final Text text : this.texts) { + joint.add(text.asString()); + } + return joint.toString(); + } +} diff --git a/src/test/java/org/cactoos/text/JoinedTextTest.java b/src/test/java/org/cactoos/text/JoinedTextTest.java new file mode 100644 index 0000000000..e05de1d579 --- /dev/null +++ b/src/test/java/org/cactoos/text/JoinedTextTest.java @@ -0,0 +1,64 @@ +/** + * The MIT License (MIT) + * + * Copyright (c) 2017 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.text; + +import java.io.IOException; +import org.cactoos.TextHasString; +import org.hamcrest.MatcherAssert; +import org.junit.Test; + +/** + * Test case for {@link JoinedText}. + * @author Fabricio Cabral (fabriciofx@gmail.com) + * @version $Id$ + * @since 0.9 + * @checkstyle JavadocMethodCheck (500 lines) + */ +public final class JoinedTextTest { + + @Test + @SuppressWarnings("PMD.AvoidDuplicateLiterals") + public void joinsStrings() throws IOException { + MatcherAssert.assertThat( + "Can't join strings", + new JoinedText(" ", "hello", "world"), + new TextHasString("hello world") + ); + } + + @Test + @SuppressWarnings("PMD.AvoidDuplicateLiterals") + public void joinsTexts() throws IOException { + MatcherAssert.assertThat( + "Can't join texts", + new JoinedText( + " ", + new StringAsText("hello"), + new StringAsText("world") + ), + new TextHasString("hello world") + ); + } + +}