Question

我正在编写CRaSH插件，在Java中看起来像

public class AuthPlugin extends CRaSHPlugin<AuthenticationPlugin> implements AuthenticationPlugin<String> {


@Override
public String getName() {
    return "auth";
}

@Override
public Class<String> getCredentialType() {
    return String.class;
}

@Override
public boolean authenticate(String username, String credential) throws Exception {
    System.out.println("authenticate " + username + " : " + credential);
    return false;
}

@Override
public void init() {
    System.out.println("init");
}

@Override
public AuthenticationPlugin getImplementation() {
    return this;
}
}

但是，我想在Kotlin表达这个课程。问题是AuthenticationPlugin，generic parameter。省略是导致Kotlin编译失败，所以我使用了星形投影，比如

class AuthPlugin : CRaSHPlugin<AuthenticationPlugin<*>>(), AuthenticationPlugin<String> {

override fun getImplementation(): AuthenticationPlugin<String> = this

override fun getName(): String = "auth"

override fun authenticate(username: String?, credential: String?): Boolean {
    println("authenticate  ${username}, ${credential}")
    return true
}

override fun getCredentialType(): Class<String> = String::class.java
}

编译很好，但不幸的是，CRaSH似乎使用它自己的加载插件的方式，我得到了运行时异常

Caused by: java.lang.UnsupportedOperationException: Type resolution of org.crsh.auth.AuthenticationPlugin<?> not yet implemented
at org.crsh.util.Utils.resolveToClass(Utils.java:576) ~[crash.shell-85c8d21173b71a0275b599a3a4444723dd64c6af.jar:?]
at org.crsh.util.Utils.resolveToClass(Utils.java:560) ~[crash.shell-85c8d21173b71a0275b599a3a4444723dd64c6af.jar:?]
at org.crsh.plugin.CRaSHPlugin.<init>(CRaSHPlugin.java:59) ~[crash.shell-85c8d21173b71a0275b599a3a4444723dd64c6af.jar:?]

确实，resolveToClass()的输入是＆＃34; Class @ interface org.crsh.auth.AuthenticationPlugin＆＃34;对于Java版本，而对于Kotlin，它的＆＃34; ParametrizedTypeImpl@org.crsh.auth.AuthenticationPlugin"。我认为CRaSH加载器无法正常处理。我当然可以使用Java，但是为了坚持使用Kotlin - 如何让这个类编译成与Java版本完全相同的类型并使它由CRaSH正确加载？

Java - ＆gt;使用原始类型进行Kotlin转换

0 个答案: