java-micronaut-client.auth.AuthorizationBinder.mustache Maven / Gradle / Ivy

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{{>licenseInfo}}
package {{invokerPackage}}.auth;

import io.micronaut.aop.MethodInvocationContext;
import io.micronaut.core.annotation.AnnotationValue;
import io.micronaut.core.annotation.NonNull;
import io.micronaut.core.util.CollectionUtils;
import io.micronaut.core.util.StringUtils;
import io.micronaut.http.MutableHttpRequest;
import io.micronaut.http.client.bind.AnnotatedClientRequestBinder;
import io.micronaut.http.client.bind.ClientRequestUriContext;
import jakarta.inject.Singleton;
import java.util.ArrayList;
import java.util.List;
import javax.annotation.Generated;


{{>generatedAnnotation}}
@Singleton
public class AuthorizationBinder implements AnnotatedClientRequestBinder {

    public static final CharSequence AUTHORIZATION_NAMES  = "micronaut.security.AUTHORIZATION_NAMES";

    @NonNull
    @Override
    public Class getAnnotationType() {
        return Authorization.class;
    }

    @Override
    public void bind(@NonNull MethodInvocationContext context,
                     @NonNull ClientRequestUriContext uriContext,
                     @NonNull MutableHttpRequest request
    ) {
        List> annotations = context.getAnnotationMetadata()
                .getAnnotationValuesByType(Authorization.class);

        if (CollectionUtils.isNotEmpty(annotations)) {
            List authorizationNames = new ArrayList<>();
            for (AnnotationValue annotation: annotations) {
                annotation.get("name", String.class)
                        .filter(StringUtils::isNotEmpty)
                        .ifPresent(v -> authorizationNames.add(configurationName(v)));
            }
            request.setAttribute(AUTHORIZATION_NAMES, authorizationNames);
        }
    }

    private String configurationName(String name) {
        StringBuilder result = new StringBuilder();

        boolean wasCapital = false;
        for (int i = 0; i < name.length(); ++i) {
            char c = name.charAt(i);
            if (c == '_') {
                result.append('-');
                wasCapital = true;
            } else if (Character.isUpperCase(c)) {
                if (wasCapital) {
                    result.append(Character.toLowerCase(c));
                } else {
                    result.append('-');
                    result.append(Character.toLowerCase(c));
                }
                wasCapital = true;
            } else {
                result.append(c);
            }
        }
        return result.toString();
    }
}