com.bugvm.okhttp.internal.http.Transport Maven / Gradle / Ivy
/*
* Copyright (C) 2012 The Android Open Source Project
*
* 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.bugvm.okhttp.internal.http;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.CacheRequest;
interface Transport {
/**
* Returns an output stream where the request body can be written. The
* returned stream will of one of two types:
*
* - Direct. Bytes are written to the socket and
* forgotten. This is most efficient, particularly for large request
* bodies. The returned stream may be buffered; the caller must call
* {@link #flushRequest} before reading the response.
* - Buffered. Bytes are written to an in memory
* buffer, and must be explicitly flushed with a call to {@link
* #writeRequestBody}. This allows HTTP authorization (401, 407)
* responses to be retransmitted transparently.
*
*/
// TODO: don't bother retransmitting the request body? It's quite a corner
// case and there's uncertainty whether Firefox or Chrome do this
OutputStream createRequestBody() throws IOException;
/** This should update the HTTP engine's sentRequestMillis field. */
void writeRequestHeaders() throws IOException;
/**
* Sends the request body returned by {@link #createRequestBody} to the
* remote peer.
*/
void writeRequestBody(RetryableOutputStream requestBody) throws IOException;
/** Flush the request body to the underlying socket. */
void flushRequest() throws IOException;
/** Read response headers and update the cookie manager. */
ResponseHeaders readResponseHeaders() throws IOException;
// TODO: make this the content stream?
InputStream getTransferStream(CacheRequest cacheRequest) throws IOException;
/** Returns true if the underlying connection can be recycled. */
boolean makeReusable(boolean streamReusable, OutputStream requestBodyOut,
InputStream responseBodyIn);
}