1// Copyright 2013 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#ifndef CHROME_BROWSER_EXTENSIONS_API_LOG_PRIVATE_FILTER_HANDLER_H_
6#define CHROME_BROWSER_EXTENSIONS_API_LOG_PRIVATE_FILTER_HANDLER_H_
7
8#include <string>
9#include <vector>
10
11#include "chrome/common/extensions/api/log_private.h"
12
13namespace extensions {
14// This class contains multiple filtering methods to filter log entries
15// by multiple fields.
16class FilterHandler {
17 public:
18  explicit FilterHandler(const api::log_private::Filter& filter);
19  ~FilterHandler();
20
21  // This function decides if a log entry should be returned to user.
22  // Returns true if the log entry meets the filtering conditions.
23  bool IsValidLogEntry(const api::log_private::LogEntry& entry) const;
24  // Filters log by timestamp.
25  // Returns true if the timestamp is within the time range of the filter.
26  bool IsValidTime(double time) const;
27  // Filters log by source (syslog, network_event_log, etc).
28  // Returns true if the log is from specified source in the filter.
29  bool IsValidSource(const std::string& source) const;
30  // Filters log by level (DEBUG, ERROR, WARNING).
31  // Returns true if the log level is specified in the filter.
32  bool IsValidLevel(const std::string& level) const;
33  // Filters log by its process name.
34  // Returns true if the process name is specified in the filter.
35  bool IsValidProcess(const std::string& process) const;
36
37  const api::log_private::Filter* GetFilter() const { return &filter_; }
38
39 private:
40  api::log_private::Filter filter_;
41
42  DISALLOW_COPY_AND_ASSIGN(FilterHandler);
43};
44
45}  // namespace extensions
46
47#endif  // CHROME_BROWSER_EXTENSIONS_API_LOG_PRIVATE_FILTER_HANDLER_H_
48