file_load_policy.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_FILE_LOAD_POLICY_H_
#define NET_INSTAWEB_REWRITER_PUBLIC_FILE_LOAD_POLICY_H_

#include <list>
#include "pagespeed/kernel/base/basictypes.h"
#include "pagespeed/kernel/base/gtest_prod.h"
#include "pagespeed/kernel/base/string.h"
#include "pagespeed/kernel/base/string_util.h"

namespace net_instaweb {

class GoogleUrl;
class FileLoadMapping;
class FileLoadRule;

class FileLoadPolicy {
 public:
  FileLoadPolicy() {}
  virtual ~FileLoadPolicy();

  virtual bool ShouldLoadFromFile(const GoogleUrl& url,
                                  GoogleString* filename) const;

  virtual void Associate(StringPiece url_prefix, StringPiece filename_prefix);

  virtual bool AssociateRegexp(StringPiece url_regexp,
                               StringPiece filename_prefix,
                               GoogleString* error);

  virtual bool AddRule(const GoogleString& rule, bool is_regexp, bool allowed,
                       GoogleString* error);

  virtual void Merge(const FileLoadPolicy& other);

 protected:
  virtual bool ShouldLoadFromFileHelper(const GoogleUrl& url,
                                        GoogleString* filename) const;

 private:
  typedef std::list<FileLoadMapping*> FileLoadMappings;
  FileLoadMappings file_load_mappings_;
  typedef std::list<FileLoadRule*> FileLoadRules;
  FileLoadRules file_load_rules_;

  
};

}  

#endif