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//------------------------------------------------------------------------------
// <copyright file="SoapExtensionStream.cs" company="Microsoft">
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
//------------------------------------------------------------------------------
namespace System.Web.Services.Protocols {
using System;
using System.IO;
using System.Web.Services;
internal class SoapExtensionStream : Stream {
internal Stream innerStream;
bool hasWritten = false;
bool streamReady;
internal SoapExtensionStream() {
}
private bool EnsureStreamReady() {
if (streamReady) return true;
throw new InvalidOperationException(Res.GetString(Res.WebBadStreamState));
}
public override bool CanRead {
get {
EnsureStreamReady();
return innerStream.CanRead;
}
}
public override bool CanSeek {
get {
EnsureStreamReady();
return innerStream.CanSeek;
}
}
public override bool CanWrite {
get {
EnsureStreamReady();
return innerStream.CanWrite;
}
}
internal bool HasWritten
{
get { return this.hasWritten; }
}
public override long Length
{
get {
EnsureStreamReady();
return innerStream.Length;
}
}
public override long Position {
get {
EnsureStreamReady();
return innerStream.Position;
}
set {
EnsureStreamReady();
this.hasWritten = true;
innerStream.Position = value;
}
}
protected override void Dispose(bool disposing) {
try {
if (disposing) {
EnsureStreamReady();
this.hasWritten = true;
innerStream.Close();
}
}
finally {
base.Dispose(disposing);
}
}
public override void Flush() {
EnsureStreamReady();
this.hasWritten = true;
innerStream.Flush();
}
public override IAsyncResult BeginRead(byte[] buffer, int offset, int count, AsyncCallback callback, Object state) {
EnsureStreamReady();
return innerStream.BeginRead(buffer, offset, count, callback, state);
}
public override int EndRead(IAsyncResult asyncResult) {
EnsureStreamReady();
return innerStream.EndRead(asyncResult);
}
public override IAsyncResult BeginWrite(byte[] buffer, int offset, int count, AsyncCallback callback, Object state) {
EnsureStreamReady();
this.hasWritten = true;
return innerStream.BeginWrite(buffer, offset, count, callback, state);
}
public override void EndWrite(IAsyncResult asyncResult) {
EnsureStreamReady();
this.hasWritten = true;
innerStream.EndWrite(asyncResult);
}
public override long Seek(long offset, SeekOrigin origin) {
EnsureStreamReady();
return innerStream.Seek(offset, origin);
}
public override void SetLength(long value) {
EnsureStreamReady();
innerStream.SetLength(value);
}
public override int Read(byte[] buffer, int offset, int count) {
EnsureStreamReady();
return innerStream.Read(buffer, offset, count);
}
public override int ReadByte() {
EnsureStreamReady();
return innerStream.ReadByte();
}
public override void Write(byte[] buffer, int offset, int count) {
EnsureStreamReady();
this.hasWritten = true;
innerStream.Write(buffer, offset, count);
}
public override void WriteByte(byte value) {
EnsureStreamReady();
this.hasWritten = true;
innerStream.WriteByte(value);
}
internal void SetInnerStream(Stream stream) {
innerStream = stream;
this.hasWritten = false;
}
internal void SetStreamReady() {
streamReady = true;
}
}
}
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