Android Open Source - wototoplayer Spdy Transport

• Back to App/web  ↑

From Project

Back to project page wototoplayer.

License

The source code is released under:

Copyright (c) 2015, Chris Greenhalgh All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met...

Java Source Code

/*
 * Copyright (C) 2012 The Android Open Source Project
 */*from w  ww .j a  v  a2 s .c om*/
 * 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.squareup.okhttp.internal.http;

import com.squareup.okhttp.internal.spdy.ErrorCode;
import com.squareup.okhttp.internal.spdy.SpdyConnection;
import com.squareup.okhttp.internal.spdy.SpdyStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.CacheRequest;
import java.net.URL;
import java.util.List;

public final class SpdyTransport implements Transport {
  private final HttpEngine httpEngine;
  private final SpdyConnection spdyConnection;
  private SpdyStream stream;

  public SpdyTransport(HttpEngine httpEngine, SpdyConnection spdyConnection) {
    this.httpEngine = httpEngine;
    this.spdyConnection = spdyConnection;
  }

  @Override public OutputStream createRequestBody() throws IOException {
    long fixedContentLength = httpEngine.policy.getFixedContentLength();
    if (fixedContentLength != -1) {
      httpEngine.requestHeaders.setContentLength(fixedContentLength);
    }
    // TODO: if we aren't streaming up to the server, we should buffer the whole request
    writeRequestHeaders();
    return stream.getOutputStream();
  }

  @Override public void writeRequestHeaders() throws IOException {
    if (stream != null) {
      return;
    }
    httpEngine.writingRequestHeaders();
    RawHeaders requestHeaders = httpEngine.requestHeaders.getHeaders();
    String version = httpEngine.connection.getHttpMinorVersion() == 1 ? "HTTP/1.1" : "HTTP/1.0";
    URL url = httpEngine.policy.getURL();
    requestHeaders.addSpdyRequestHeaders(httpEngine.method, HttpEngine.requestPath(url), version,
        HttpEngine.getOriginAddress(url), httpEngine.uri.getScheme());
    boolean hasRequestBody = httpEngine.hasRequestBody();
    boolean hasResponseBody = true;
    stream = spdyConnection.newStream(requestHeaders.toNameValueBlock(), hasRequestBody,
        hasResponseBody);
    stream.setReadTimeout(httpEngine.client.getReadTimeout());
  }

  @Override public void writeRequestBody(RetryableOutputStream requestBody) throws IOException {
    throw new UnsupportedOperationException();
  }

  @Override public void flushRequest() throws IOException {
    stream.getOutputStream().close();
  }

  @Override public ResponseHeaders readResponseHeaders() throws IOException {
    List<String> nameValueBlock = stream.getResponseHeaders();
    RawHeaders rawHeaders = RawHeaders.fromNameValueBlock(nameValueBlock);
    httpEngine.receiveHeaders(rawHeaders);

    ResponseHeaders headers = new ResponseHeaders(httpEngine.uri, rawHeaders);
    headers.setTransport("spdy/3");
    return headers;
  }

  @Override public InputStream getTransferStream(CacheRequest cacheRequest) throws IOException {
    return new UnknownLengthHttpInputStream(stream.getInputStream(), cacheRequest, httpEngine);
  }

  @Override public boolean makeReusable(boolean streamCanceled, OutputStream requestBodyOut,
      InputStream responseBodyIn) {
    if (streamCanceled) {
      if (stream != null) {
        stream.closeLater(ErrorCode.CANCEL);
        return true;
      } else {
        // If stream is null, it either means that writeRequestHeaders wasn't called
        // or that SpdyConnection#newStream threw an IOException. In both cases there's
        // nothing to do here and this stream can't be reused.
        return false;
      }
    }
    return true;
  }
}

Java Source Code List

• Back to App/web  ↑