com.google.cloud.dataflow.sdk.util.UploadIdResponseInterceptor Maven / Gradle / Ivy
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Google Cloud Dataflow Java SDK provides a simple, Java-based
interface for processing virtually any size data using Google cloud
resources. This artifact includes entire Dataflow Java SDK.
/*
* Copyright (C) 2015 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package com.google.cloud.dataflow.sdk.util;
import com.google.api.client.http.GenericUrl;
import com.google.api.client.http.HttpResponse;
import com.google.api.client.http.HttpResponseInterceptor;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.IOException;
/**
* Implements a response intercepter that logs the upload id if the upload
* id header exists and it is the first request (does not have upload_id parameter in the request).
* Only logs if debug level is enabled.
*/
public class UploadIdResponseInterceptor implements HttpResponseInterceptor {
private static final Logger LOG = LoggerFactory.getLogger(UploadIdResponseInterceptor.class);
private static final String UPLOAD_ID_PARAM = "upload_id";
private static final String UPLOAD_TYPE_PARAM = "uploadType";
private static final String UPLOAD_HEADER = "X-GUploader-UploadID";
@Override
public void interceptResponse(HttpResponse response) throws IOException {
if (!LOG.isDebugEnabled()) {
return;
}
String uploadId = response.getHeaders().getFirstHeaderStringValue(UPLOAD_HEADER);
if (uploadId == null) {
return;
}
GenericUrl url = response.getRequest().getUrl();
// The check for no upload id limits the output to one log line per upload.
// The check for upload type makes sure this is an upload and not a read.
if (url.get(UPLOAD_ID_PARAM) == null && url.get(UPLOAD_TYPE_PARAM) != null) {
LOG.debug(
"Upload ID for url {} on worker {} is {}",
url,
System.getProperty("worker_id"),
uploadId);
}
}
}