mirror of
https://github.com/InsanusMokrassar/SDI.git
synced 2024-11-27 12:38:55 +00:00
143 lines
3.7 KiB
Markdown
143 lines
3.7 KiB
Markdown
# SDI
|
|
|
|
[  ](https://bintray.com/insanusmokrassar/InsanusMokrassar/sdi/_latestVersion)
|
|
[](https://maven-badges.herokuapp.com/maven-central/com.github.insanusmokrassar/sdi)
|
|
[](https://travis-ci.com/InsanusMokrassar/SDI)
|
|
|
|
It is simple (in comparison with other systems) DI, which aim to be compatible and predictable. This library was created
|
|
with aim on difficult systems with opportunity to reconfigure most parts of behaviours without recompilation of code.
|
|
|
|
## Platforms support
|
|
|
|
* [x] JVM
|
|
* [ ] JS
|
|
* [ ] Native
|
|
|
|
## Required environment
|
|
|
|
To use this library you will need two things:
|
|
|
|
* Json serializer
|
|
* Json config
|
|
|
|
Unfortunately, currently not supported other formats (due to
|
|
[issue in Kotlinx.serialization](https://github.com/Kotlin/kotlinx.serialization/issues/615))
|
|
|
|
## How to implement
|
|
|
|
Currently you can connect repository JCenter:
|
|
|
|
```groovy
|
|
repositories {
|
|
// ...
|
|
jcenter()
|
|
// ...
|
|
}
|
|
```
|
|
|
|
and implement it like here:
|
|
|
|
```groovy
|
|
dependencies {
|
|
implementation "com.insanusmokrassar:sdi:$sdi_version"
|
|
}
|
|
```
|
|
|
|
Last version shown here: [  ](https://bintray.com/insanusmokrassar/InsanusMokrassar/sdi/_latestVersion)
|
|
|
|
## Format of config
|
|
|
|
Full examples of usage you can find in [tests](src/commonTest/kotlin/com/insanusmokrassar/sdi). In two words, there are
|
|
a few rules for constructing of config:
|
|
|
|
* Config root is an Json Object
|
|
* Config root names will be used as dependency names
|
|
* In the config dependency names can be used everywhere
|
|
* In places, where dependency will be injected, must be used `@ContextualSerializer` annotation or `@Serializer(ContextSerializer::class)`
|
|
|
|
### Examples
|
|
|
|
Lets imagine, that we have several interfaces and classes:
|
|
|
|
```kotlin
|
|
package com.example
|
|
|
|
// ... //
|
|
|
|
interface ControllerAPI {
|
|
fun showUp()
|
|
}
|
|
interface ServiceAPI {
|
|
val names: List<String>
|
|
}
|
|
|
|
@Serializable
|
|
class Controller(@ContextualSerialization val service: ServiceAPI) : ControllerAPI {
|
|
override fun showUp() {
|
|
println("Inited with name \"${service.names}\"")
|
|
}
|
|
}
|
|
@Serializable
|
|
class BusinessService(override val names: List<String>) : ServiceAPI
|
|
```
|
|
|
|
Here there is common way to create all of this directly:
|
|
|
|
```kotlin
|
|
val service = BusinessService(listOf("One", "Two"))
|
|
val controller = Controller(service)
|
|
```
|
|
|
|
And with config for this library:
|
|
|
|
```json
|
|
{
|
|
"service": [
|
|
"com.example.BusinessService",
|
|
{
|
|
"names": ["One", "Two"]
|
|
}
|
|
],
|
|
"controller": [
|
|
"com.example.Controller",
|
|
{
|
|
"service": "service"
|
|
}
|
|
]
|
|
}
|
|
```
|
|
|
|
Kotlin code will be:
|
|
|
|
```kotlin
|
|
val module = loadModule(input)
|
|
val businessService = (module["service"] as BusinessService)
|
|
```
|
|
|
|
Here `input` is a json of configuration.
|
|
|
|
List example you can find in
|
|
[this test](https://git.insanusmokrassar.com/InsanusMokrassar/SDI/src/master/src/commonTest/kotlin/com/insanusmokrassar/sdi/ListTest.kt).
|
|
Besides, usually you can create objects inside of places where expected something like dependency injection directly. In
|
|
this case config will look like:
|
|
|
|
```json
|
|
{
|
|
"controller": [
|
|
"com.example.Controller",
|
|
{
|
|
"service": [
|
|
"com.example.BusinessService",
|
|
{
|
|
"names": ["One", "Two"]
|
|
}
|
|
]
|
|
}
|
|
]
|
|
}
|
|
```
|
|
|
|
More expanded example you can find in
|
|
[suitable test](https://git.insanusmokrassar.com/InsanusMokrassar/SDI/src/master/src/commonTest/kotlin/com/insanusmokrassar/sdi/SimpleCustomObjectTest.kt#L63).
|
|
|