gradle - 将对象实例添加到 gradle 插件扩展

Question

我有类似下面的插件，其中我有一个外部命名空间，其中有一个对象的单个“具体”实例( mother )加上另一个集合( children )。

family {
  mother {
      firstname = 'John'
      lastname  = 'Cleese'
  }
  children {
      son {
        firstName = 'John'
        lastName  = 'Cleese'
      }
      daughter {
        firstName = 'Jane'
        lastName  = 'Cleese'
      }
  }
}

我能够添加集合对象并根据我见过的各种示例读取变量，但不确定如何添加具体实例。
如何在扩展对象上定义它？

显示问题的代码 - 我想添加 mother作为带有插件的单个实例。

import org.gradle.api.DefaultTask
import org.gradle.api.tasks.TaskAction
import org.gradle.api.NamedDomainObjectContainer
import org.gradle.api.*

class Person
{
  final String name
  String firstName
  String lastName
  Person(String name) { this.name = name }
}

class FamilyExtension {

  final NamedDomainObjectContainer<Person> children
  Person mother
  Person father

  FamilyExtension(children) {
    this.children = children
  }

  def children(Closure closure) {
    children.configure(closure)
  }
}

class FamilyPlugin implements Plugin<Project> {

  void apply(Project project) {
    project.task('sayHello', type: DefaultTask) << { 
      println(
        "Hello ${project.family.children["son"].firstName} " +
        "and hello ${project.family.children["daughter"].firstName} ")
    }

    def children  = project.container(Person)

    project.extensions.create("family", FamilyExtension, children)
  }
}

apply plugin: FamilyPlugin

family {
  // How do I add support for this?
  // mother {
  //     firstname = 'John'
  //     lastname  = 'Cleese'
  // }
  children {
      son {
        firstName = 'John'
        lastName  = 'Cleese'
      }
      daughter {
        firstName = 'Jane'
        lastName  = 'Cleese'
      }
  }
}

Answer 1

好吧，添加mother关闭family您将以下代码添加到 FamilyExtension类(class)

Person mother(Closure closure) {
   mother = new Person()
   project.configure(mother, closure)
   return mother
}

如果，同时你想拥有 children在家庭一中扩展您将以下代码添加到 FamilyPlugin.apply方法

project.extensions.create("family", FamilyExtension, instantiator, project)
project.family.extensions.create("children", FamilyExtension.Children, project)

然后你添加

void son(Closure closure) {
    Person son = new Person()
    project.configure(son, closure)
    children.add(son)
}

能够添加 son children 内关闭一。

要查看整个项目和更详细的解释，请访问 Github 项目 https://github.com/andriipanasiuk/family-gradle-plugin