io.atlassian.util.adapter.jakarta.servlet.http.JakartaHttpUpgradeHandlerAdapter Maven / Gradle / Ivy

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A collection of classes for adapting Servlet API 4.0 objects to Servlet API 5.0 and vice versa.

There is a newer version: 0.1.0

package io.atlassian.util.adapter.jakarta.servlet.http;

import io.atlassian.util.adapter.javax.servlet.http.JavaXHttpUpgradeHandlerAdapter;
import io.atlassian.util.adapter.javax.servlet.http.JavaXWebConnectionAdapter;
import jakarta.servlet.http.HttpUpgradeHandler;
import jakarta.servlet.http.WebConnection;

import static io.atlassian.util.adapter.util.WrapperUtil.applyIfNonNull;
import static java.util.Objects.requireNonNull;

public class JakartaHttpUpgradeHandlerAdapter implements HttpUpgradeHandler {

    private final javax.servlet.http.HttpUpgradeHandler delegate;

    public static HttpUpgradeHandler from(javax.servlet.http.HttpUpgradeHandler delegate) {
        if (delegate instanceof JavaXHttpUpgradeHandlerAdapter castDelegate) {
            return castDelegate.getDelegate();
        }
        return applyIfNonNull(delegate, JakartaHttpUpgradeHandlerAdapter::new);
    }

    JakartaHttpUpgradeHandlerAdapter(javax.servlet.http.HttpUpgradeHandler delegate) {
        this.delegate = requireNonNull(delegate);
    }

    public javax.servlet.http.HttpUpgradeHandler getDelegate() {
        return delegate;
    }

    @Override
    public void init(WebConnection wc) {
        delegate.init(JavaXWebConnectionAdapter.from(wc));
    }

    @Override
    public void destroy() {
        delegate.destroy();
    }
}