io.split.engine.common.FastlyHeadersCaptor Maven / Gradle / Ivy
package io.split.engine.common;
import java.util.*;
import java.util.stream.Collectors;
public class FastlyHeadersCaptor {
private static final Set HEADERS_TO_CAPTURE = new HashSet<>(Arrays.asList(
"Fastly-Debug-Path",
"Fastly-Debug-TTL",
"Fastly-Debug-Digest",
"X-Served-By",
"X-Cache",
"X-Cache-Hits",
"X-Timer",
"Surrogate-Key",
"ETag",
"Cache-Control",
"X-Request-ID",
"Last-Modified"
));
private final List> _headers = new ArrayList<>();
public Void handle(Map responseHeaders) {
_headers.add(responseHeaders.entrySet().stream()
.filter(e -> HEADERS_TO_CAPTURE.contains(e.getKey()))
.collect(Collectors.toMap(Map.Entry::getKey, Map.Entry::getValue)));
return null;
}
public List> get() {
return _headers;
}
}