com.javonet.core.handler.GetStaticFieldHandler Maven / Gradle / Ivy
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Javonet allows you to reference and use modules or packages written in (Java/Kotlin/Groovy/Clojure, C#/VB.NET, Ruby, Perl, Python, JavaScript/TypeScript) like they were created in your technology.
It works on Linux/Windows and MacOS for applications created in JVM, CLR/Netcore, Perl, Python, Ruby, NodeJS, C++ or GoLang and gives you unparalleled freedom and flexibility with native performance in building your mixed-technologies products.
Let it be accessing best AI or cryptography libraries, devices SDKs, legacy client modules, internal custom packages or anything from public repositories available on NPM, Nuget, PyPI, Maven/Gradle, RubyGems or GitHub. Get free from programming languages barriers today!
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package com.javonet.core.handler;
import com.javonet.utils.Command;
import com.javonet.utils.exceptions.JavonetArgumentsMismatchException;
public class GetStaticFieldHandler extends AbstractHandler {
private final int requiredArgumentsCount = 2;
@Override
public Object process(Command command) throws Exception {
if (command.getPayload().length < requiredArgumentsCount)
throw new JavonetArgumentsMismatchException(this.getClass().getName(), requiredArgumentsCount);
Class classToLoad = (Class) command.getPayload()[0];
String field = command.getPayload()[1].toString();
try {
return classToLoad.getDeclaredField(field)
.get(null);
}
catch (NoSuchFieldException e) {
java.lang.reflect.Field[] fields = classToLoad.getDeclaredFields();
StringBuilder message = new StringBuilder("Field " + field + " not found in class " + classToLoad.getName() + ". Available fields:\n");
for (java.lang.reflect.Field f : fields) {
message.append(f.getName()).append("\n");
}
throw new NoSuchFieldException(message.toString());
}
}
}