1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
|
/*
* Copyright 2005-2010 Fabrice Colin
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef _CRAWL_HISTORY_H
#define _CRAWL_HISTORY_H
#include <time.h>
#include <string>
#include <map>
#include <set>
#include "SQLiteBase.h"
class ClassItem;
/// Manages crawl history.
class CrawlHistory : public SQLiteBase
{
public:
CrawlHistory(const std::string &database);
virtual ~CrawlHistory();
typedef enum { UNKNOWN, TO_CRAWL, CRAWLING, CRAWLED, CRAWL_ERROR, CRAWL_LINK } CrawlStatus;
/// Creates the CrawlHistory table in the database.
static bool create(const std::string &database);
/// Inserts a source.
unsigned int insertSource(const std::string &url);
/// Checks if the source exists.
bool hasSource(const std::string &url, unsigned int &sourceId);
/// Returns sources.
unsigned int getSources(std::map<unsigned int, std::string> &sources);
/// Deletes a source.
bool deleteSource(unsigned int sourceId);
/// Inserts an URL.
bool insertItem(const std::string &url, CrawlStatus status, unsigned int sourceId,
time_t date, int errNum = 0);
/// Checks if an URL is in the history.
bool hasItem(const std::string &url, CrawlStatus &status, time_t &date);
/// Updates an URL.
bool updateItem(const std::string &url, CrawlStatus status, time_t date, int errNum = 0);
/// Updates URLs.
bool updateItems(const std::map<std::string, class CrawlItem> &items);
/// Updates the status of items en masse.
bool updateItemsStatus(CrawlStatus oldStatus, CrawlStatus newStatus,
unsigned int sourceId, bool allSources = false);
/// Gets the error number and date for a URL.
int getErrorDetails(const std::string &url, time_t &date);
/// Returns items.
unsigned int getItems(CrawlStatus status, std::set<std::string> &urls);
/// Returns items that belong to a source.
unsigned int getSourceItems(unsigned int sourceId, CrawlStatus status,
std::set<std::string> &urls,
unsigned int min, unsigned int max,
time_t minDate = 0);
/// Returns the number of URLs.
unsigned int getItemsCount(CrawlStatus status);
/// Deletes an URL.
bool deleteItem(const std::string &url);
/// Deletes all items under a given URL.
bool deleteItems(const std::string &url);
/// Deletes URLs belonging to a source.
bool deleteItems(unsigned int sourceId, CrawlStatus status = UNKNOWN);
/// Expires items older than the given date.
bool expireItems(time_t expiryDate);
protected:
static std::string statusToText(CrawlStatus status);
static CrawlStatus textToStatus(const std::string &text);
private:
CrawlHistory(const CrawlHistory &other);
CrawlHistory &operator=(const CrawlHistory &other);
};
/// An item in CrawlHistory.
class CrawlItem
{
public:
CrawlItem() :
m_itemStatus(CrawlHistory::UNKNOWN),
m_itemDate(0),
m_errNum(0)
{
}
CrawlItem(CrawlHistory::CrawlStatus itemStatus,
time_t itemDate,
int errNum) :
m_itemStatus(itemStatus),
m_itemDate(itemDate),
m_errNum(errNum)
{
}
CrawlItem(const CrawlItem &other) :
m_itemStatus(other.m_itemStatus),
m_itemDate(other.m_itemDate),
m_errNum(other.m_errNum)
{
}
~CrawlItem()
{
}
CrawlHistory::CrawlStatus m_itemStatus;
time_t m_itemDate;
int m_errNum;
};
#endif // _CRAWL_HISTORY_H
|
