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Test2 injector #15
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Test2 injector #15
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| Original file line number | Diff line number | Diff line change |
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| group 'ru.spbau.mit' | ||
| version '1.0-SNAPSHOT' | ||
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| apply plugin: 'java' | ||
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| sourceCompatibility = 1.8 | ||
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| repositories { | ||
| mavenCentral() | ||
| } | ||
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| dependencies { | ||
| testCompile group: 'junit', name: 'junit', version: '4.11' | ||
| } |
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| Original file line number | Diff line number | Diff line change |
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| # Injector | ||
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| * Необходимо реализовать статический метод `Injector.initialize`, эмулирующий работу контейнера Dependency Injection. | ||
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| * Его основная задача - создать объект класса, полное имя которого передано в параметре `rootClassName`. | ||
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| * Также в метод передается набор доступных классов реализаций. Для каждого такого класса за один `initialize` должно быть создано не более одного экземпляра. | ||
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| * Гарантируется, что каждый класс содержит ровно один конструктор. | ||
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| --- | ||
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| # Injector | ||
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| Параметры конструктора определяют зависимости данного класса. | ||
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| ```java | ||
| public class A { | ||
| public A(Interface1 x) {} | ||
| } | ||
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| public class B implements Interface1 {} | ||
| ``` | ||
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| Класс A зависит от интерфейса `Interface1` (так же зависимостью может быть абстрактный или конкретный класс). | ||
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| Таким образом, чтобы создать объект класса `A`, можно сначала создать объект класса `B` и передать его в конструктор. | ||
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| Понятно, что зависимости могут быть несколько более замысловатыми. | ||
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| --- | ||
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| # Injector | ||
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| * Метод `initialize` должен завершиться с исключением `AmbiguousImplementationException`, если найдено несколько разных классов-реализаций одной и той же зависимости (зависимости --- это только те классы и интерфейсы, которые встречаются в конструкторах). | ||
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| * Метод `initialize` должен завершиться с исключением `ImplementationNotFoundException`, если для какой-то зависимости не найдено ни одной реализации. | ||
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| * Метод `initialize` должен завершиться с исключением `InjectionCycleException`, если зависимости прямо или косвенно образуют цикл. | ||
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| * В остальных случаях метод должен вернуть объект класса `rootClassName`. | ||
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| --- | ||
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| # Формат сдачи | ||
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| * Запаковываете проект в zip-архив | ||
| * Посылаете письмо преподавателю c архивом: | ||
| * s-proshev@ya.ru | ||
| * Java02. КР 02 <фамилия> <имя> | ||
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| Original file line number | Diff line number | Diff line change |
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| #Sat Dec 03 18:22:53 MSK 2016 | ||
| distributionBase=GRADLE_USER_HOME | ||
| distributionPath=wrapper/dists | ||
| zipStoreBase=GRADLE_USER_HOME | ||
| zipStorePath=wrapper/dists | ||
| distributionUrl=https\://services.gradle.org/distributions/gradle-3.1-bin.zip |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,2 @@ | ||
| rootProject.name = 'injector' | ||
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4 changes: 4 additions & 0 deletions
4
...njector/src/main/java/ru/spbau/savon/test2/Injector/AmbiguousImplementationException.java
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,4 @@ | ||
| package ru.spbau.savon.test2.Injector; | ||
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| public class AmbiguousImplementationException extends Exception { | ||
| } |
4 changes: 4 additions & 0 deletions
4
...Injector/src/main/java/ru/spbau/savon/test2/Injector/ImplementationNotFoundException.java
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,4 @@ | ||
| package ru.spbau.savon.test2.Injector; | ||
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| public class ImplementationNotFoundException extends Exception { | ||
| } |
4 changes: 4 additions & 0 deletions
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Test2_Injector/src/main/java/ru/spbau/savon/test2/Injector/InjectionCycleException.java
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,4 @@ | ||
| package ru.spbau.savon.test2.Injector; | ||
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| public class InjectionCycleException extends Exception { | ||
| } |
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позвольте поинтересоваться, а откуда у вас эти файлы с условием? я такого не давал