BeanBuilder (#18)

* Add BeanBuilder

* Upgrade kemitix-parent to 5.1.0

* Add kemitix-checkstyle:tile:4.0.1

* Upgrade kemitix-maven-tiles to 0.5.2

* Build with java 1.8

* Downgrade surefire to 2.20 from the broken 2.02.1 in kemitix-maven-tiles

* Add javadoc and rename parameters
This commit is contained in:
Paul Campbell 2018-02-28 15:00:00 +00:00 committed by GitHub
parent 5d111f3077
commit 11a63baa9f
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3 changed files with 111 additions and 3 deletions

11
pom.xml
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@ -7,19 +7,23 @@
<parent>
<groupId>net.kemitix</groupId>
<artifactId>kemitix-parent</artifactId>
<version>5.0.3</version>
<version>5.1.0</version>
<relativePath/>
</parent>
<artifactId>mon</artifactId>
<version>0.5.0-SNAPSHOT</version>
<properties>
<java.version>1.8</java.version>
<junit.version>4.12</junit.version>
<assertj-core.version>3.8.0</assertj-core.version>
<lombok.version>1.16.18</lombok.version>
<tiles-maven-plugin.version>2.10</tiles-maven-plugin.version>
<kemitix-tiles.version>0.1.1</kemitix-tiles.version>
<kemitix-tiles.version>0.5.2</kemitix-tiles.version>
<!-- kemitix-tiles provides surefire 2.20.1 which is broken - downgrade surefire to 2.20 -->
<maven-surefire-plugin.version>2.20</maven-surefire-plugin.version>
<digraph-dependency.basePackage>net.kemitix.mon</digraph-dependency.basePackage>
<kemitix-checkstyle.version>4.0.1</kemitix-checkstyle.version>
</properties>
<dependencies>
@ -52,7 +56,8 @@
<extensions>true</extensions>
<configuration>
<tiles>
<tile>net.kemitix.tiles:all-tiles:${kemitix-tiles.version}</tile>
<tile>net.kemitix.tiles:all:${kemitix-tiles.version}</tile>
<tile>net.kemitix.checkstyle:tile:${kemitix-checkstyle.version}</tile>
</tiles>
</configuration>
</plugin><!-- tiles-maven-plugin -->

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@ -0,0 +1,61 @@
/**
* The MIT License (MIT)
*
* Copyright (c) 2017 Paul Campbell
*
* 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 NONINFRINGEMENT. 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 net.kemitix.mon;
import lombok.RequiredArgsConstructor;
import java.util.function.Consumer;
import java.util.function.Supplier;
/**
* Helper to create bean-style objects.
*
* @param <T> The type of the bean being built
*/
@RequiredArgsConstructor
public class BeanBuilder<T> {
private final Supplier<T> supplier;
/**
* Create a BeanBuilder from the Supplier.
*
* @param constructor supplies a new instance of the bean
* @param <T> the type of the bean being built
* @return a BeanBuilder instance
*/
public static <T> BeanBuilder<T> define(final Supplier<T> constructor) {
return new BeanBuilder<>(constructor);
}
/**
* Creates a new bean and passes it to the customiser.
*
* @param customiser customises the template bean
* @return the final customised bean
*/
public T with(final Consumer<T> customiser) {
final T result = supplier.get();
customiser.accept(result);
return result;
}
}

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@ -0,0 +1,42 @@
package net.kemitix.mon;
import static net.kemitix.mon.BeanBuilder.define;
import static org.assertj.core.api.Assertions.*;
import lombok.Getter;
import lombok.RequiredArgsConstructor;
import lombok.Setter;
import org.junit.Test;
import java.util.function.Consumer;
import java.util.function.Supplier;
public class BeanBuilderTest {
@Test
public void canCreateAndSetupObject() {
//given
final Supplier<DataObject> templateSupplier = () -> new DataObject("name");
final Consumer<DataObject> propertySetter = data -> data.setValue("value");
//when
final DataObject result = define(templateSupplier)
.with(propertySetter);
//then
assertThat(result)
.returns("name", DataObject::getName)
.returns("value", DataObject::getValue);
}
@Getter
@RequiredArgsConstructor
private class DataObject {
private final String name;
@Setter
private String value;
}
}