com.undefinedlabs.scope.rules.headers.AkkaHttpHeadersAdapter Maven / Gradle / Ivy

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package com.undefinedlabs.scope.rules.headers;

import akka.http.javadsl.model.HttpHeader;
import com.undefinedlabs.scope.rules.http.HttpHeadersAdapter;

import java.util.Collections;
import java.util.HashMap;
import java.util.Map;

public class AkkaHttpHeadersAdapter implements HttpHeadersAdapter {

    private final Iterable headers;

    public AkkaHttpHeadersAdapter(final Iterable headers) {
        this.headers = headers;
    }

    @Override
    public Iterable> iterator() {
        if (headers == null) {
            return Collections.unmodifiableMap(new HashMap()).entrySet();
        }

        final Map headersMap = new HashMap<>();
        for (final HttpHeader header : this.headers) {
            headersMap.put(header.name(), header.value());
        }

        return Collections.unmodifiableMap(headersMap).entrySet();
    }
}