com.google.api.client.googleapis.batch.HttpRequestContent Maven / Gradle / Ivy
/*
* Copyright 2013 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.api.client.googleapis.batch;
import com.google.api.client.http.AbstractHttpContent;
import com.google.api.client.http.HttpContent;
import com.google.api.client.http.HttpHeaders;
import com.google.api.client.http.HttpRequest;
import java.io.IOException;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.Writer;
/**
* HTTP request wrapped as a content part of a multipart/mixed request.
*
* @author Yaniv Inbar
*/
class HttpRequestContent extends AbstractHttpContent {
static final String NEWLINE = "\r\n";
/** HTTP request. */
private final HttpRequest request;
private static final String HTTP_VERSION = "HTTP/1.1";
HttpRequestContent(HttpRequest request) {
super("application/http");
this.request = request;
}
@Override
public void writeTo(OutputStream out) throws IOException {
Writer writer = new OutputStreamWriter(out, getCharset());
// write method and URL
writer.write(request.getRequestMethod());
writer.write(" ");
writer.write(request.getUrl().build());
writer.write(" ");
writer.write(HTTP_VERSION);
writer.write(NEWLINE);
// write headers
HttpHeaders headers = new HttpHeaders();
headers.fromHttpHeaders(request.getHeaders());
headers
.setAcceptEncoding(null)
.setUserAgent(null)
.setContentEncoding(null)
.setContentType(null)
.setContentLength(null);
// analyze the content
HttpContent content = request.getContent();
if (content != null) {
headers.setContentType(content.getType());
// NOTE: batch does not support gzip encoding
long contentLength = content.getLength();
if (contentLength != -1) {
headers.setContentLength(contentLength);
}
}
HttpHeaders.serializeHeadersForMultipartRequests(headers, null, null, writer);
// HTTP headers are always terminated with an empty line; RFC 7230 §3
writer.write(NEWLINE);
writer.flush();
// write content
if (content != null) {
content.writeTo(out);
}
}
}