single_rewrite_context.h

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/*
 * Copyright 2011 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.
 */


#ifndef NET_INSTAWEB_REWRITER_PUBLIC_SINGLE_REWRITE_CONTEXT_H_
#define NET_INSTAWEB_REWRITER_PUBLIC_SINGLE_REWRITE_CONTEXT_H_

#include "net/instaweb/rewriter/public/resource.h"
#include "net/instaweb/rewriter/public/rewrite_context.h"
#include "net/instaweb/rewriter/public/server_context.h"
#include "pagespeed/kernel/base/basictypes.h"

namespace net_instaweb {

class CachedResult;
class OutputPartitions;
class ResourceContext;
class RewriteDriver;

class SingleRewriteContext : public RewriteContext {
 public:
  SingleRewriteContext(RewriteDriver* driver, RewriteContext* parent,
                       ResourceContext* resource_context);
  virtual ~SingleRewriteContext();

 protected:
  virtual void RewriteSingle(const ResourcePtr& input,
                             const OutputResourcePtr& output) = 0;

  virtual bool Partition(OutputPartitions* partitions,
                         OutputResourceVector* outputs);
  virtual void Rewrite(int partition_index,
                       CachedResult* partition,
                       const OutputResourcePtr& output);

  void AddLinkRelCanonical(const ResourcePtr& input,
                           ResponseHeaders* output);

  void AddLinkRelCanonicalForFallbackHeaders(ResponseHeaders* output);

 private:
  
};

}  

#endif