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

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package com.undefinedlabs.scope.rules.headers;

import com.undefinedlabs.scope.rules.http.HttpHeadersAdapter;
import com.undefinedlabs.scope.deps.org.apache.commons.lang3.StringUtils;

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

public class URLConnectionHeadersAdapter implements HttpHeadersAdapter {

    private final Map> headers;

    public URLConnectionHeadersAdapter(final Map> headers) {
        this.headers = headers;
    }

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

        final Map headersMap = new HashMap<>();
        for (Map.Entry> entry : headers.entrySet()) {
            if (entry.getValue() != null && entry.getValue().size() > 0) {
                headersMap.put(entry.getKey(), StringUtils.join(entry.getValue(), "|"));
            }
        }

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