io.swagger.codegen.CodegenModelFactory Maven / Gradle / Ivy
package io.swagger.codegen;
import java.util.HashMap;
import java.util.Map;
public final class CodegenModelFactory {
private static final Map> typeMapping = new HashMap>();
/**
* Configure a different implementation class.
*
* @param type the type that shall be replaced
* @param implementation the implementation class must extend the default class and must provide a public no-arg constructor
*/
public static void setTypeMapping(CodegenModelType type, Class> implementation) {
if (!type.getDefaultImplementation().isAssignableFrom(implementation)) {
throw new IllegalArgumentException(implementation.getSimpleName() + " doesn't extend " + type.getDefaultImplementation().getSimpleName());
}
try {
implementation.newInstance();
} catch (Exception e) {
throw new IllegalArgumentException(e);
}
typeMapping.put(type, implementation);
}
@SuppressWarnings("unchecked")
public static T newInstance(CodegenModelType type) {
Class> classType = typeMapping.get(type);
try {
return (T) (classType != null ? classType : type.getDefaultImplementation()).newInstance();
} catch (IllegalAccessException | InstantiationException e) {
throw new RuntimeException(e);
}
}
}
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