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Aaron Marasco
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Nov 24, 2011
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| Original file line number | Original file line | Diff line number | Diff line change |
|---|---|---|---|
| @@ -1,12 +1,12 @@ | |||
| using System; | using System; | ||
| using System.Collections.Generic; | using System.Collections.Generic; | ||
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| namespace Data | namespace Data | ||
| { | { | ||
| public interface CardStore | public interface CardStore | ||
| { | { | ||
| IEnumerable<ReferenceCard> GetCards(); | IEnumerable<ReferenceCard> GetCards(); | ||
| void UpdateHash(string id, ulong phash); | void UpdateHash(string id, ulong phash); | ||
| } | } | ||
| } | } | ||
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| Original file line number | Original file line | Diff line number | Diff line change |
|---|---|---|---|
| @@ -1,113 +1,113 @@ | |||
| using System; | //using System; | ||
| using System.Collections.Generic; | //using System.Collections.Generic; | ||
| using System.Linq; | //using System.Linq; | ||
| using System.Text; | //using System.Text; | ||
| using System.Data; | //using System.Data; | ||
| using System.Configuration; | //using System.Configuration; | ||
| using MySql.Data.MySqlClient; | ////using MySql.Data.MySqlClient; | ||
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// | ||
| namespace Data | //namespace Data | ||
| { | //{ | ||
| public class MySqlClient : CardStore | // public class MySqlClient : CardStore | ||
| { | // { | ||
| private MySqlConnection sql; | // private MySqlConnection sql; | ||
| private static string MySqlConnectionString = ConfigurationManager.AppSettings["MySqlConnectionString"]; | // private static string MySqlConnectionString = ConfigurationManager.AppSettings["MySqlConnectionString"]; | ||
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// | ||
| private DataRow dbRow(String query) | // private DataRow dbRow(String query) | ||
| { | // { | ||
| MySqlCommand command = sql.CreateCommand(); | // MySqlCommand command = sql.CreateCommand(); | ||
| command.CommandText = query; | // command.CommandText = query; | ||
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// | ||
| DataTable selectDT = new DataTable(); | // DataTable selectDT = new DataTable(); | ||
| MySqlDataAdapter dataAd = new MySqlDataAdapter(command); | // MySqlDataAdapter dataAd = new MySqlDataAdapter(command); | ||
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// | ||
| dataAd.Fill(selectDT); | // dataAd.Fill(selectDT); | ||
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// | ||
| if (selectDT.Rows.Count > 0) | // if (selectDT.Rows.Count > 0) | ||
| return selectDT.Rows[0]; | // return selectDT.Rows[0]; | ||
| else | // else | ||
| return null; | // return null; | ||
| } | // } | ||
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// | ||
| private int lastInsertId() | // private int lastInsertId() | ||
| { | // { | ||
| DataRow r = dbRow("SELECT last_insert_id() as lid"); | // DataRow r = dbRow("SELECT last_insert_id() as lid"); | ||
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// | ||
| Int64 id = (Int64)r[0]; | // Int64 id = (Int64)r[0]; | ||
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// | ||
| return (int)id; | // return (int)id; | ||
| } | // } | ||
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// | ||
| private int affectedRows() | // private int affectedRows() | ||
| { | // { | ||
| DataRow r = dbRow("SELECT ROW_COUNT()"); | // DataRow r = dbRow("SELECT ROW_COUNT()"); | ||
| int id = (int)r[0]; | // int id = (int)r[0]; | ||
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// | ||
| return id; | // return id; | ||
| } | // } | ||
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// | ||
| private DataTable dbResult(String query) | // private DataTable dbResult(String query) | ||
| { | // { | ||
| MySqlCommand command = sql.CreateCommand(); | // MySqlCommand command = sql.CreateCommand(); | ||
| command.CommandText = query; | // command.CommandText = query; | ||
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// | ||
| DataTable selectDT = new DataTable(); | // DataTable selectDT = new DataTable(); | ||
| MySqlDataAdapter dataAd = new MySqlDataAdapter(command); | // MySqlDataAdapter dataAd = new MySqlDataAdapter(command); | ||
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// | ||
| dataAd.Fill(selectDT); | // dataAd.Fill(selectDT); | ||
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// | ||
| return selectDT; | // return selectDT; | ||
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// | ||
| } | // } | ||
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// | ||
| internal int dbNone(string query) | // internal int dbNone(string query) | ||
| { | // { | ||
| MySqlCommand command = sql.CreateCommand(); | // MySqlCommand command = sql.CreateCommand(); | ||
| command.CommandText = query; | // command.CommandText = query; | ||
| return command.ExecuteNonQuery(); | // return command.ExecuteNonQuery(); | ||
| } | // } | ||
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// | ||
| public MySqlClient() | // public MySqlClient() | ||
| { | // { | ||
| sql = new MySqlConnection(MySqlConnectionString); | // sql = new MySqlConnection(MySqlConnectionString); | ||
| sql.Open(); | // sql.Open(); | ||
| } | // } | ||
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// | ||
| private DateTime ConvertFromUnixTimestamp(double timestamp) | // private DateTime ConvertFromUnixTimestamp(double timestamp) | ||
| { | // { | ||
| DateTime origin = new DateTime(1970, 1, 1, 0, 0, 0, 0); | // DateTime origin = new DateTime(1970, 1, 1, 0, 0, 0, 0); | ||
| return origin.AddSeconds(timestamp); | // return origin.AddSeconds(timestamp); | ||
| } | // } | ||
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// | ||
| private double ConvertToUnixTimestamp(DateTime date) | // private double ConvertToUnixTimestamp(DateTime date) | ||
| { | // { | ||
| DateTime origin = new DateTime(1970, 1, 1, 0, 0, 0, 0); | // DateTime origin = new DateTime(1970, 1, 1, 0, 0, 0, 0); | ||
| TimeSpan diff = date - origin; | // TimeSpan diff = date - origin; | ||
| return Math.Floor(diff.TotalSeconds); | // return Math.Floor(diff.TotalSeconds); | ||
| } | // } | ||
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// | ||
| public IEnumerable<ReferenceCard> GetCards() | // public IEnumerable<ReferenceCard> GetCards() | ||
| { | // { | ||
| var ret = new List<ReferenceCard>(); | // var ret = new List<ReferenceCard>(); | ||
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// | ||
| var reader = this.dbResult("SELECT * FROM cards"); | // var reader = this.dbResult("SELECT * FROM cards"); | ||
| foreach (DataRow r in reader.Rows) | // foreach (DataRow r in reader.Rows) | ||
| { | // { | ||
| ReferenceCard card = new ReferenceCard(); | // ReferenceCard card = new ReferenceCard(); | ||
| card.cardId = (String)r["id"]; | // card.cardId = (String)r["id"]; | ||
| card.name = (String)r["Name"]; | // card.name = (String)r["Name"]; | ||
| card.pHash = (UInt64)r["pHash"]; | // card.pHash = (UInt64)r["pHash"]; | ||
| card.dataRow = r; | // card.dataRow = r; | ||
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// | ||
| ret.Add(card); | // ret.Add(card); | ||
| } | // } | ||
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// | ||
| return ret; | // return ret; | ||
| } | // } | ||
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// | ||
| public void UpdateHash(string id, ulong phash) | // public void UpdateHash(string id, ulong phash) | ||
| { | // { | ||
| this.dbNone("UPDATE cards SET pHash=" + phash.ToString() + " WHERE id=" + id); | // this.dbNone("UPDATE cards SET pHash=" + phash.ToString() + " WHERE id=" + id); | ||
| } | // } | ||
| } | // } | ||
| } | //} | ||
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| Original file line number | Original file line | Diff line number | Diff line change |
|---|---|---|---|
| @@ -1,14 +1,14 @@ | |||
| using System; | using System; | ||
| using System.Data; | using System.Data; | ||
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| namespace Data | namespace Data | ||
| { | { | ||
| public class ReferenceCard | public class ReferenceCard | ||
| { | { | ||
| public string cardId; | public string cardId; | ||
| public string name; | public string name; | ||
| public UInt64 pHash; | public UInt64 pHash; | ||
| public DataRow dataRow; | public DataRow dataRow; | ||
| } | } | ||
| } | } | ||
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| Original file line number | Original file line | Diff line number | Diff line change |
|---|---|---|---|
| @@ -1,32 +1,32 @@ | |||
| using System; | using System; | ||
| using System.Runtime.InteropServices; | using System.Runtime.InteropServices; | ||
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| namespace Data | namespace Data | ||
| { | { | ||
| public class Phash | public class Phash | ||
| { | { | ||
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| [DllImport("pHash.dll", CallingConvention = CallingConvention.Cdecl)] | [DllImport("pHash.dll", CallingConvention = CallingConvention.Cdecl)] | ||
| public static extern int ph_dct_imagehash(string file_name, ref UInt64 Hash); | public static extern int ph_dct_imagehash(string file_name, ref UInt64 Hash); | ||
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| private static UInt64 m1 = 0x5555555555555555; | private static UInt64 m1 = 0x5555555555555555; | ||
| private static UInt64 m2 = 0x3333333333333333; | private static UInt64 m2 = 0x3333333333333333; | ||
| private static UInt64 h01 = 0x0101010101010101; | private static UInt64 h01 = 0x0101010101010101; | ||
| private static UInt64 m4 = 0x0f0f0f0f0f0f0f0f; | private static UInt64 m4 = 0x0f0f0f0f0f0f0f0f; | ||
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| // Calculate the similarity between two hashes | // Calculate the similarity between two hashes | ||
| public static int HammingDistance(UInt64 hash1, UInt64 hash2) | public static int HammingDistance(UInt64 hash1, UInt64 hash2) | ||
| { | { | ||
| UInt64 x = hash1 ^ hash2; | UInt64 x = hash1 ^ hash2; | ||
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| x -= (x >> 1) & m1; | x -= (x >> 1) & m1; | ||
| x = (x & m2) + ((x >> 2) & m2); | x = (x & m2) + ((x >> 2) & m2); | ||
| x = (x + (x >> 4)) & m4; | x = (x + (x >> 4)) & m4; | ||
| UInt64 res = (x * h01) >> 56; | UInt64 res = (x * h01) >> 56; | ||
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| return (int)res; | return (int)res; | ||
| } | } | ||
| } | } | ||
| } | } | ||
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