| /* |
| * Copyright (C) 2010 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.squareup.okhttp.internal.http; |
| |
| import java.io.ByteArrayOutputStream; |
| import java.io.IOException; |
| import java.io.OutputStream; |
| import java.net.ProtocolException; |
| |
| import static com.squareup.okhttp.internal.Util.checkOffsetAndCount; |
| |
| /** |
| * An HTTP request body that's completely buffered in memory. This allows |
| * the post body to be transparently re-sent if the HTTP request must be |
| * sent multiple times. |
| */ |
| final class RetryableOutputStream extends AbstractHttpOutputStream { |
| private final int limit; |
| private final ByteArrayOutputStream content; |
| |
| public RetryableOutputStream(int limit) { |
| this.limit = limit; |
| this.content = new ByteArrayOutputStream(limit); |
| } |
| |
| public RetryableOutputStream() { |
| this.limit = -1; |
| this.content = new ByteArrayOutputStream(); |
| } |
| |
| @Override public synchronized void close() throws IOException { |
| if (closed) { |
| return; |
| } |
| closed = true; |
| if (content.size() < limit) { |
| throw new ProtocolException( |
| "content-length promised " + limit + " bytes, but received " + content.size()); |
| } |
| } |
| |
| @Override public synchronized void write(byte[] buffer, int offset, int count) |
| throws IOException { |
| checkNotClosed(); |
| checkOffsetAndCount(buffer.length, offset, count); |
| if (limit != -1 && content.size() > limit - count) { |
| throw new ProtocolException("exceeded content-length limit of " + limit + " bytes"); |
| } |
| content.write(buffer, offset, count); |
| } |
| |
| public synchronized int contentLength() throws IOException { |
| close(); |
| return content.size(); |
| } |
| |
| public void writeToSocket(OutputStream socketOut) throws IOException { |
| content.writeTo(socketOut); |
| } |
| } |