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/*
* Copyright 2019 Oath Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
*/
package ai.vespa.metricsproxy.http;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.net.URI;
import java.util.List;
import java.util.logging.Logger;
import static com.yahoo.jdisc.Response.Status.INTERNAL_SERVER_ERROR;
import static com.yahoo.jdisc.Response.Status.OK;
import static java.util.logging.Level.WARNING;
/**
* @author gjoranv
*/
public class RestApiUtil {
private static Logger log = Logger.getLogger(RestApiUtil.class.getName());
static JsonResponse resourceListResponse(URI requestUri, List<String> resources) {
try {
return new JsonResponse(OK, RestApiUtil.resourceList(requestUri, resources));
} catch (JSONException e) {
log.log(WARNING, "Bad JSON construction in generated resource list for " + requestUri.getPath(), e);
return new ErrorResponse(INTERNAL_SERVER_ERROR,
"An error occurred when generating the list of api resources.");
}
}
// TODO: Use jackson with a "Resources" class instead of JSONObject
private static String resourceList(URI requestUri, List<String> resources) throws JSONException {
int port = requestUri.getPort();
String host = requestUri.getHost();
StringBuilder base = new StringBuilder("http://");
base.append(host);
if (port >= 0) {
base.append(":").append(port);
}
String uriBase = base.toString();
JSONArray linkList = new JSONArray();
for (String api : resources) {
JSONObject resource = new JSONObject();
resource.put("url", uriBase + api);
linkList.put(resource);
}
return new JSONObject().put("resources", linkList).toString(4);
}
}
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