rename to Java style.
This commit is contained in:
Soar360
parent
1d02185af1
commit
399f4a5ebc
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@ -1,47 +1,89 @@
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using System;
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using System;
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using System.Text;
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namespace DbMaker
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{
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/// <summary>
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/// data block class
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/// </summary>
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/**
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* data block class
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*
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* @author chenxin<chenxin619315@gmail.com>
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*/
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public class DataBlock
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{
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/// <summary>
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/// construct method
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/// </summary>
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/// <param name="cityId"></param>
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/// <param name="region"></param>
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/// <param name="dataPtr"></param>
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public DataBlock(int cityId, string region, int dataPtr)
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/**
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* city id
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*/
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private int city_id;
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/**
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* region address
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*/
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private String region;
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/**
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* region ptr in the db file
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*/
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private int dataPtr;
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/**
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* construct method
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*
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* @param city_id
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* @param region region string
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* @param dataPtr data ptr
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*/
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public DataBlock(int city_id, String region, int dataPtr)
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{
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CityId = cityId;
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Region = region;
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DataPtr = dataPtr;
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this.city_id = city_id;
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this.region = region;
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this.dataPtr = dataPtr;
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}
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public DataBlock(int cityId, string region) : this(cityId, region, 0)
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public DataBlock(int city_id, String region) : this(city_id, region, 0)
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{
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//this(city_id, region, 0);
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}
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/// <summary>
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/// city id
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/// </summary>
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public int CityId { get; set; }
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/// <summary>
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/// region address
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/// </summary>
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public string Region { get; set; }
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/// <summary>
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/// region ptr in the db file
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/// </summary>
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public int DataPtr { get; set; }
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public override string ToString()
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public int getCityId()
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{
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return String.Join("|", this.CityId, this.Region, this.DataPtr);
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return city_id;
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}
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public DataBlock setCityId(int city_id)
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{
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this.city_id = city_id;
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return this;
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}
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public String getRegion()
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{
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return region;
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}
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public DataBlock setRegion(String region)
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{
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this.region = region;
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return this;
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}
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public int getDataPtr()
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{
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return dataPtr;
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}
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public DataBlock setDataPtr(int dataPtr)
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{
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this.dataPtr = dataPtr;
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return this;
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}
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public override String ToString()
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{
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StringBuilder sb = new StringBuilder();
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sb.Append(city_id).Append('|').Append(region).Append('|').Append(dataPtr);
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return sb.ToString();
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}
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}
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}
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@ -1,49 +1,67 @@
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using System;
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using System.Collections.Generic;
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using System.Text;
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namespace DbMaker
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{
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/// <summary>
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/// database configuration class
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/// </summary>
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/**
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* database configuration class
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*
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* @author chenxin<chenxin619315@gmail.com>
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*/
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public class DbConfig
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{
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/**
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* total header data block size
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*/
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private int totalHeaderSize;
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/**
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* max index data block size
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* u should always choice the fastest read block size
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*/
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private int indexBlockSize;
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/**
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* construct method
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*
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* @param totalHeaderSize
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* @throws DbMakerConfigException
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*/
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public DbConfig(int totalHeaderSize)
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{
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if (totalHeaderSize % 8 != 0)
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if ((totalHeaderSize % 8) != 0)
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{
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throw new DbMakerConfigException("totalHeaderSize must be times of 8");
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}
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TotalHeaderSize = totalHeaderSize;
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IndexBlockSize = 8192; //4*2048
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this.totalHeaderSize = totalHeaderSize;
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this.indexBlockSize = 8192; //4 * 2048
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}
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public DbConfig() : this(8 * 2048)
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{
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//this(8 * 2048);
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}
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/// <summary>
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/// total header data block size
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/// </summary>
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public int TotalHeaderSize { get; set; }
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/// <summary>
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/// max index data block size
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/// u should always choice the fastest read block size
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/// </summary>
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public int IndexBlockSize { get; set; }
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public DbConfig SetTotalHeaderSize(int totalHeaderSize)
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public int getTotalHeaderSize()
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{
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this.TotalHeaderSize = totalHeaderSize;
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return totalHeaderSize;
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}
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public DbConfig setTotalHeaderSize(int totalHeaderSize)
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{
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this.totalHeaderSize = totalHeaderSize;
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return this;
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}
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public DbConfig SetIndexBlockSize(int dataBlockSize)
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public int getIndexBlockSize()
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{
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this.IndexBlockSize = dataBlockSize;
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return indexBlockSize;
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}
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public DbConfig setIndexBlockSize(int dataBlockSize)
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{
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this.indexBlockSize = dataBlockSize;
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return this;
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}
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}
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}
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@ -1,10 +1,8 @@
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using System;
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using System.Collections.Generic;
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using System.Text;
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using System;
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namespace DbMaker
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{
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class DbMakerConfigException : Exception
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public class DbMakerConfigException : Exception
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{
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public DbMakerConfigException(String message) : base(message)
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{
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@ -1,12 +1,14 @@
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using System;
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using System.IO;
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using System;
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using System.Text;
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namespace DbMaker
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{
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/// <summary>
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/// ip db searcher class (Not thread safe)
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/// </summary>
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/**
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* ip db searcher class (Not thread safe)
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*
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* @author chenxin<chenxin619315@gmail.com>
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*/
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public class DbSearcher : IDisposable
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{
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public const int BTREE_ALGORITHM = 1;
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@ -14,32 +16,36 @@ namespace DbMaker
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public const int MEMORY_ALGORITYM = 3;
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/**
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* for memory mode
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* the original db binary string
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* db config
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*/
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private byte[] dbBinStr;
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/**
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* super blocks info
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*/
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private long firstIndexPtr;
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private int headerLength;
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private int[] HeaderPtr;
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/**
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* header blocks buffer
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*/
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private long[] HeaderSip;
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private long lastIndexPtr;
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private DbConfig dbConfig = null;
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/**
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* db file access handler
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*/
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private readonly Stream raf;
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private RandomAccessFile raf = null;
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private int totalIndexBlocks;
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/**
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* header blocks buffer
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*/
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private long[] HeaderSip = null;
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private int[] HeaderPtr = null;
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private int headerLength;
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/**
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* super blocks info
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*/
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private long firstIndexPtr = 0;
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private long lastIndexPtr = 0;
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private int totalIndexBlocks = 0;
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/**
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* for memory mode
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* the original db binary string
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*/
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private byte[] dbBinStr = null;
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/**
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* construct class
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* @param dbFile
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* @throws FileNotFoundException
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*/
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public DbSearcher(DbConfig dbConfig, string dbFile)
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public DbSearcher(DbConfig dbConfig, String dbFile)
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{
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this.dbConfig = dbConfig;
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raf = File.OpenRead(dbFile); //new RandomAccessFile(dbFile, "r");
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raf = new RandomAccessFile(dbFile);
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}
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/**
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firstIndexPtr = Util.getIntLong(dbBinStr, 0);
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lastIndexPtr = Util.getIntLong(dbBinStr, 4);
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totalIndexBlocks = (int) ((lastIndexPtr - firstIndexPtr) / IndexBlock.GetIndexBlockLength()) + 1;
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}
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/**
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* db config
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*/
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public DbConfig dbConfig { get; set; }
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public void Dispose()
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{
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Close();
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totalIndexBlocks = (int) ((lastIndexPtr - firstIndexPtr) / IndexBlock.getIndexBlockLength()) + 1;
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}
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/**
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* @param ip
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* @throws IOException
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*/
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public DataBlock MemorySearch(long ip)
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public DataBlock memorySearch(long ip)
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{
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var blen = IndexBlock.GetIndexBlockLength();
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int blen = IndexBlock.getIndexBlockLength();
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if (dbBinStr == null)
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{
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dbBinStr = new byte[(int) raf.Length];
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raf.Seek(0L, SeekOrigin.Begin);
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//raf.readFully(dbBinStr, 0, dbBinStr.length);
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raf.Read(dbBinStr, 0, dbBinStr.Length);
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dbBinStr = new byte[(int) raf.length()];
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raf.seek(0L);
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raf.readFully(dbBinStr, 0, dbBinStr.Length);
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//initialize the global vars
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firstIndexPtr = Util.getIntLong(dbBinStr, 0);
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lastIndexPtr = Util.getIntLong(dbBinStr, 4);
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@ -107,8 +103,8 @@ namespace DbMaker
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long sip, eip, dataptr = 0;
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while (l <= h)
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{
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var m = l + h >> 1;
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var p = (int) (firstIndexPtr + m * blen);
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int m = (l + h) >> 1;
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int p = (int) (firstIndexPtr + m * blen);
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sip = Util.getIntLong(dbBinStr, p);
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if (ip < sip)
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@ -131,20 +127,22 @@ namespace DbMaker
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}
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//not matched
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if (dataptr == 0)
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{
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return null;
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}
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if (dataptr == 0) return null;
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//get the data
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var dataLen = (int) (dataptr >> 24 & 0xFF);
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var dataPtr = (int) (dataptr & 0x00FFFFFF);
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var city_id = (int) Util.getIntLong(dbBinStr, dataPtr);
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int dataLen = (int) ((dataptr >> 24) & 0xFF);
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int dataPtr = (int) ((dataptr & 0x00FFFFFF));
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int city_id = (int) Util.getIntLong(dbBinStr, dataPtr);
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//String region = new String(dbBinStr, dataPtr + 4, dataLen - 4, "UTF-8");
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var region = Encoding.UTF8.GetString(dbBinStr, dataPtr + 4, dataLen - 4);
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var region = ReadString(dbBinStr, dataPtr + 4, dataLen - 4);
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return new DataBlock(city_id, region, dataPtr);
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}
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private string ReadString(byte[] bytes, int dataPtr, int dataLen)
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{
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return Encoding.UTF8.GetString(bytes, dataPtr, dataLen);
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}
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/**
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* get the region throught the ip address with memory binary search algorithm
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*
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@ -152,9 +150,9 @@ namespace DbMaker
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* @return DataBlock
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* @throws IOException
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*/
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public DataBlock MemorySearch(string ip)
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public DataBlock memorySearch(String ip)
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{
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return MemorySearch(Util.ip2long(ip));
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return memorySearch(Util.ip2long(ip));
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}
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@ -164,27 +162,25 @@ namespace DbMaker
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* @param indexPtr
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* @throws IOException
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*/
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public DataBlock GetByIndexPtr(long ptr)
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public DataBlock getByIndexPtr(long ptr)
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{
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raf.Seek(ptr, SeekOrigin.Begin);
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var
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buffer = new byte[12];
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//raf.readFully(buffer, 0, buffer.length);
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raf.Read(buffer, 0, buffer.Length);
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raf.seek(ptr);
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byte[] buffer = new byte[12];
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raf.readFully(buffer, 0, buffer.Length);
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//long startIp = Util.getIntLong(buffer, 0);
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//long endIp = Util.getIntLong(buffer, 4);
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var extra = Util.getIntLong(buffer, 8);
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long extra = Util.getIntLong(buffer, 8);
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var dataLen = (int) (extra >> 24 & 0xFF);
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var dataPtr = (int) (extra & 0x00FFFFFF);
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int dataLen = (int) ((extra >> 24) & 0xFF);
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int dataPtr = (int) ((extra & 0x00FFFFFF));
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raf.Seek(dataPtr, SeekOrigin.Begin);
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var data = new byte[dataLen];
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//raf.readFully(data, 0, data.length);
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raf.Read(data, 0, data.Length);
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var city_id = (int) Util.getIntLong(data, 0);
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//String region = new String(data, 4, data.length - 4, "UTF-8");
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var region = Encoding.UTF8.GetString(data, 4, data.Length - 4);
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raf.seek(dataPtr);
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byte[] data = new byte[dataLen];
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raf.readFully(data, 0, data.Length);
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int city_id = (int) Util.getIntLong(data, 0);
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//String region = new String(data, 4, data.Length - 4, "UTF-8");
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var region = ReadString(data, 4, data.Length - 4);
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return new DataBlock(city_id, region, dataPtr);
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}
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@ -194,32 +190,26 @@ namespace DbMaker
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* @param ip
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* @throws IOException
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*/
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public DataBlock BTreeSearch(long ip)
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public DataBlock btreeSearch(long ip)
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{
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//check and load the header
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if (HeaderSip == null)
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{
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//raf.seek(8L); //pass the super block
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raf.Seek(8, SeekOrigin.Begin);
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var b = new byte[dbConfig.TotalHeaderSize];
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raf.seek(8L); //pass the super block
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byte[] b = new byte[dbConfig.getTotalHeaderSize()];
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// byte[] b = new byte[4096];
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//raf.readFully(b, 0, b.length);
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raf.Read(b, 0, b.Length);
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raf.readFully(b, 0, b.Length);
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//fill the header
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int len = b.Length >> 3, idx = 0; //b.lenght / 8
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HeaderSip = new long[len];
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HeaderPtr = new int [len];
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long startIp;
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long xDataPtr = 0;
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for (var i = 0; i < b.Length; i += 8)
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long startIp, xDataPtr;
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for (int i = 0; i < b.Length; i += 8)
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{
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startIp = Util.getIntLong(b, i);
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xDataPtr = Util.getIntLong(b, i + 4);
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if (xDataPtr == 0)
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{
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break;
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}
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if (xDataPtr == 0) break;
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HeaderSip[idx] = startIp;
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HeaderPtr[idx] = (int) xDataPtr;
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@ -232,18 +222,17 @@ namespace DbMaker
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//1. define the index block with the binary search
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if (ip == HeaderSip[0])
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{
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return GetByIndexPtr(HeaderPtr[0]);
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return getByIndexPtr(HeaderPtr[0]);
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}
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if (ip == HeaderSip[headerLength - 1])
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else if (ip == HeaderSip[headerLength - 1])
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{
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return GetByIndexPtr(HeaderPtr[headerLength - 1]);
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return getByIndexPtr(HeaderPtr[headerLength - 1]);
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}
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int l = 0, h = headerLength, sptr = 0, eptr = 0;
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while (l <= h)
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{
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var m = l + h >> 1;
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int m = (l + h) >> 1;
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//perfetc matched, just return it
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if (ip == HeaderSip[m])
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@ -271,8 +260,7 @@ namespace DbMaker
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eptr = HeaderPtr[m + 1];
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break;
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}
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if (ip > HeaderSip[m - 1])
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else if (ip > HeaderSip[m - 1])
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{
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sptr = HeaderPtr[m - 1];
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eptr = HeaderPtr[m];
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@ -289,8 +277,7 @@ namespace DbMaker
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eptr = HeaderPtr[m];
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break;
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}
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||||
if (ip <= HeaderSip[m + 1])
|
||||
else if (ip <= HeaderSip[m + 1])
|
||||
{
|
||||
sptr = HeaderPtr[m];
|
||||
eptr = HeaderPtr[m + 1];
|
||||
|
|
@ -302,27 +289,21 @@ namespace DbMaker
|
|||
}
|
||||
|
||||
//match nothing just stop it
|
||||
if (sptr == 0)
|
||||
{
|
||||
return null;
|
||||
}
|
||||
if (sptr == 0) return null;
|
||||
|
||||
//2. search the index blocks to define the data
|
||||
int blockLen = eptr - sptr, blen = IndexBlock.GetIndexBlockLength();
|
||||
var
|
||||
iBuffer = new byte[blockLen + blen]; //include the right border block
|
||||
//raf.seek(sptr);
|
||||
//raf.readFully(iBuffer, 0, iBuffer.length);
|
||||
raf.Seek(sptr, SeekOrigin.Begin);
|
||||
raf.Read(iBuffer, 0, iBuffer.Length);
|
||||
int blockLen = eptr - sptr, blen = IndexBlock.getIndexBlockLength();
|
||||
byte[] iBuffer = new byte[blockLen + blen]; //include the right border block
|
||||
raf.seek(sptr);
|
||||
raf.readFully(iBuffer, 0, iBuffer.Length);
|
||||
|
||||
l = 0;
|
||||
h = blockLen / blen;
|
||||
long sip, eip, dataptr = 0;
|
||||
while (l <= h)
|
||||
{
|
||||
var m = l + h >> 1;
|
||||
var p = m * blen;
|
||||
int m = (l + h) >> 1;
|
||||
int p = m * blen;
|
||||
sip = Util.getIntLong(iBuffer, p);
|
||||
if (ip < sip)
|
||||
{
|
||||
|
|
@ -344,23 +325,19 @@ namespace DbMaker
|
|||
}
|
||||
|
||||
//not matched
|
||||
if (dataptr == 0)
|
||||
{
|
||||
return null;
|
||||
}
|
||||
if (dataptr == 0) return null;
|
||||
|
||||
//3. get the data
|
||||
var dataLen = (int) (dataptr >> 24 & 0xFF);
|
||||
var dataPtr = (int) (dataptr & 0x00FFFFFF);
|
||||
int dataLen = (int) ((dataptr >> 24) & 0xFF);
|
||||
int dataPtr = (int) ((dataptr & 0x00FFFFFF));
|
||||
|
||||
//raf.seek(dataPtr);
|
||||
var data = new byte[dataLen];
|
||||
// raf.readFully(data, 0, data.length);
|
||||
raf.Seek(dataPtr, SeekOrigin.Begin);
|
||||
raf.Read(data, 0, data.Length);
|
||||
var city_id = (int) Util.getIntLong(data, 0);
|
||||
//String region = new String(data, 4, data.length - 4, "UTF-8");
|
||||
var region = Encoding.UTF8.GetString(data, 4, data.Length - 4);
|
||||
raf.seek(dataPtr);
|
||||
byte[] data = new byte[dataLen];
|
||||
raf.readFully(data, 0, data.Length);
|
||||
|
||||
int city_id = (int) Util.getIntLong(data, 0);
|
||||
//String region = new String(data, 4, data.Length - 4, "UTF-8");
|
||||
var region = ReadString(data, 4, data.Length - 4);
|
||||
return new DataBlock(city_id, region, dataPtr);
|
||||
}
|
||||
|
||||
|
|
@ -371,9 +348,9 @@ namespace DbMaker
|
|||
* @return DataBlock
|
||||
* @throws IOException
|
||||
*/
|
||||
public DataBlock BTreeSearch(string ip)
|
||||
public DataBlock btreeSearch(String ip)
|
||||
{
|
||||
return BTreeSearch(Util.ip2long(ip));
|
||||
return btreeSearch(Util.ip2long(ip));
|
||||
}
|
||||
|
||||
/**
|
||||
|
|
@ -382,16 +359,14 @@ namespace DbMaker
|
|||
* @param ip
|
||||
* @throws IOException
|
||||
*/
|
||||
public DataBlock BinarySearch(long ip)
|
||||
public DataBlock binarySearch(long ip)
|
||||
{
|
||||
var blen = IndexBlock.GetIndexBlockLength();
|
||||
int blen = IndexBlock.getIndexBlockLength();
|
||||
if (totalIndexBlocks == 0)
|
||||
{
|
||||
//raf.seek(0L);
|
||||
var superBytes = new byte[8];
|
||||
//raf.readFully(superBytes, 0, superBytes.length);
|
||||
raf.Seek(0, SeekOrigin.Begin);
|
||||
raf.Read(superBytes, 0, superBytes.Length);
|
||||
raf.seek(0L);
|
||||
byte[] superBytes = new byte[8];
|
||||
raf.readFully(superBytes, 0, superBytes.Length);
|
||||
//initialize the global vars
|
||||
firstIndexPtr = Util.getIntLong(superBytes, 0);
|
||||
lastIndexPtr = Util.getIntLong(superBytes, 4);
|
||||
|
|
@ -400,16 +375,13 @@ namespace DbMaker
|
|||
|
||||
//search the index blocks to define the data
|
||||
int l = 0, h = totalIndexBlocks;
|
||||
var
|
||||
buffer = new byte[blen];
|
||||
byte[] buffer = new byte[blen];
|
||||
long sip, eip, dataptr = 0;
|
||||
while (l <= h)
|
||||
{
|
||||
var m = l + h >> 1;
|
||||
//raf.seek(firstIndexPtr + m * blen); //set the file pointer
|
||||
//raf.readFully(buffer, 0, buffer.length);
|
||||
raf.Seek(firstIndexPtr + m * blen, SeekOrigin.Begin);
|
||||
raf.Read(buffer, 0, buffer.Length);
|
||||
int m = (l + h) >> 1;
|
||||
raf.seek(firstIndexPtr + m * blen); //set the file pointer
|
||||
raf.readFully(buffer, 0, buffer.Length);
|
||||
sip = Util.getIntLong(buffer, 0);
|
||||
if (ip < sip)
|
||||
{
|
||||
|
|
@ -431,24 +403,19 @@ namespace DbMaker
|
|||
}
|
||||
|
||||
//not matched
|
||||
if (dataptr == 0)
|
||||
{
|
||||
return null;
|
||||
}
|
||||
if (dataptr == 0) return null;
|
||||
|
||||
//get the data
|
||||
var dataLen = (int) (dataptr >> 24 & 0xFF);
|
||||
var dataPtr = (int) (dataptr & 0x00FFFFFF);
|
||||
int dataLen = (int) ((dataptr >> 24) & 0xFF);
|
||||
int dataPtr = (int) ((dataptr & 0x00FFFFFF));
|
||||
|
||||
//raf.seek(dataPtr);
|
||||
var data = new byte[dataLen];
|
||||
//raf.readFully(data, 0, data.length);
|
||||
raf.Seek(dataPtr, SeekOrigin.Begin);
|
||||
raf.Read(data, 0, data.Length);
|
||||
raf.seek(dataPtr);
|
||||
byte[] data = new byte[dataLen];
|
||||
raf.readFully(data, 0, data.Length);
|
||||
|
||||
var city_id = (int) Util.getIntLong(data, 0);
|
||||
//String region = new String(data, 4, data.length - 4, "UTF-8");
|
||||
var region = Encoding.UTF8.GetString(data, 4, data.Length - 4);
|
||||
int city_id = (int) Util.getIntLong(data, 0);
|
||||
//String region = new String(data, 4, data.Length - 4, "UTF-8");
|
||||
var region = ReadString(data, 4, data.Length - 4);
|
||||
return new DataBlock(city_id, region, dataPtr);
|
||||
}
|
||||
|
||||
|
|
@ -459,23 +426,38 @@ namespace DbMaker
|
|||
* @return DataBlock
|
||||
* @throws IOException
|
||||
*/
|
||||
public DataBlock BinarySearch(string ip)
|
||||
public DataBlock binarySearch(String ip)
|
||||
{
|
||||
return BinarySearch(Util.ip2long(ip));
|
||||
return binarySearch(Util.ip2long(ip));
|
||||
}
|
||||
|
||||
/**
|
||||
* get the db config
|
||||
*
|
||||
* @return DbConfig
|
||||
*/
|
||||
public DbConfig getDbConfig()
|
||||
{
|
||||
return dbConfig;
|
||||
}
|
||||
|
||||
/**
|
||||
* close the db
|
||||
*
|
||||
* @throws IOException
|
||||
*/
|
||||
private void Close()
|
||||
private void close()
|
||||
{
|
||||
HeaderSip = null; //let gc do its work
|
||||
HeaderPtr = null;
|
||||
dbBinStr = null;
|
||||
raf?.Close();
|
||||
raf.close();
|
||||
}
|
||||
|
||||
public void Dispose()
|
||||
{
|
||||
close();
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
|
|
@ -1,43 +1,57 @@
|
|||
namespace DbMaker
|
||||
namespace DbMaker
|
||||
{
|
||||
/// <summary>
|
||||
/// header block class
|
||||
/// </summary>
|
||||
|
||||
/**
|
||||
* header block class
|
||||
*
|
||||
* @author chenxin<chenxin619315@gmail.com>
|
||||
*/
|
||||
public class HeaderBlock
|
||||
{
|
||||
/**
|
||||
* index block start ip address
|
||||
*/
|
||||
private long indexStartIp;
|
||||
|
||||
/**
|
||||
* ip address
|
||||
*/
|
||||
private int indexPtr;
|
||||
|
||||
public HeaderBlock(long indexStartIp, int indexPtr)
|
||||
{
|
||||
IndexStartIp = indexStartIp;
|
||||
IndexPtr = indexPtr;
|
||||
this.indexStartIp = indexStartIp;
|
||||
this.indexPtr = indexPtr;
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// index block start ip address
|
||||
/// </summary>
|
||||
public long IndexStartIp { get; set; }
|
||||
|
||||
/// <summary>
|
||||
/// ip address
|
||||
/// </summary>
|
||||
public int IndexPtr { get; set; }
|
||||
|
||||
public HeaderBlock SetIndexStartIp(long indexStartIp)
|
||||
public long getIndexStartIp()
|
||||
{
|
||||
IndexStartIp = indexStartIp;
|
||||
return indexStartIp;
|
||||
}
|
||||
|
||||
public HeaderBlock setIndexStartIp(long indexStartIp)
|
||||
{
|
||||
this.indexStartIp = indexStartIp;
|
||||
return this;
|
||||
}
|
||||
|
||||
public HeaderBlock SetIndexPtr(int indexPtr)
|
||||
public int getIndexPtr()
|
||||
{
|
||||
IndexPtr = indexPtr;
|
||||
return indexPtr;
|
||||
}
|
||||
|
||||
public HeaderBlock setIndexPtr(int indexPtr)
|
||||
{
|
||||
this.indexPtr = indexPtr;
|
||||
return this;
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// get the bytes for db storage
|
||||
/// </summary>
|
||||
/// <returns></returns>
|
||||
public byte[] GetBytes()
|
||||
/**
|
||||
* get the bytes for db storage
|
||||
*
|
||||
* @return byte[]
|
||||
*/
|
||||
public byte[] getBytes()
|
||||
{
|
||||
/*
|
||||
* +------------+-----------+
|
||||
|
|
@ -45,11 +59,10 @@
|
|||
* +------------+-----------+
|
||||
* start ip index ptr
|
||||
*/
|
||||
byte[] b = new byte[8];
|
||||
|
||||
var b = new byte[8];
|
||||
|
||||
Util.writeIntLong(b, 0, IndexStartIp);
|
||||
Util.writeIntLong(b, 4, IndexPtr);
|
||||
Util.writeIntLong(b, 0, indexStartIp);
|
||||
Util.writeIntLong(b, 4, indexPtr);
|
||||
|
||||
return b;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,65 +1,88 @@
|
|||
namespace DbMaker
|
||||
namespace DbMaker
|
||||
{
|
||||
/// <summary>
|
||||
/// item index class
|
||||
/// </summary>
|
||||
|
||||
/**
|
||||
* item index class
|
||||
*
|
||||
* @author chenxin<chenxin619315@gmail.com>
|
||||
*/
|
||||
public class IndexBlock
|
||||
{
|
||||
private static int LENGTH = 12;
|
||||
|
||||
public IndexBlock(long startIp, long endIp, int dataPtr, int dataLen)
|
||||
{
|
||||
StartIp = startIp;
|
||||
EndIp = endIp;
|
||||
DataPtr = dataPtr;
|
||||
DataLen = dataLen;
|
||||
}
|
||||
|
||||
/**
|
||||
* start ip address
|
||||
*/
|
||||
public long StartIp { get; set; }
|
||||
private long startIp;
|
||||
|
||||
/**
|
||||
* end ip address
|
||||
*/
|
||||
public long EndIp { get; set; }
|
||||
private long endIp;
|
||||
|
||||
/**
|
||||
* data ptr and data length
|
||||
*/
|
||||
public int DataPtr { get; set; }
|
||||
private int dataPtr;
|
||||
|
||||
/**
|
||||
* data length
|
||||
*/
|
||||
public int DataLen { get; set; }
|
||||
private int dataLen;
|
||||
|
||||
public IndexBlock SetStartIp(long startIp)
|
||||
public IndexBlock(long startIp, long endIp, int dataPtr, int dataLen)
|
||||
{
|
||||
StartIp = startIp;
|
||||
this.startIp = startIp;
|
||||
this.endIp = endIp;
|
||||
this.dataPtr = dataPtr;
|
||||
this.dataLen = dataLen;
|
||||
}
|
||||
|
||||
public long getStartIp()
|
||||
{
|
||||
return startIp;
|
||||
}
|
||||
|
||||
public IndexBlock setStartIp(long startIp)
|
||||
{
|
||||
this.startIp = startIp;
|
||||
return this;
|
||||
}
|
||||
|
||||
public IndexBlock SetEndIp(long endIp)
|
||||
public long getEndIp()
|
||||
{
|
||||
EndIp = endIp;
|
||||
return endIp;
|
||||
}
|
||||
|
||||
public IndexBlock setEndIp(long endIp)
|
||||
{
|
||||
this.endIp = endIp;
|
||||
return this;
|
||||
}
|
||||
|
||||
public IndexBlock SetDataPtr(int dataPtr)
|
||||
public int getDataPtr()
|
||||
{
|
||||
DataPtr = dataPtr;
|
||||
return dataPtr;
|
||||
}
|
||||
|
||||
public IndexBlock setDataPtr(int dataPtr)
|
||||
{
|
||||
this.dataPtr = dataPtr;
|
||||
return this;
|
||||
}
|
||||
|
||||
public IndexBlock SetDataLen(int dataLen)
|
||||
public int getDataLen()
|
||||
{
|
||||
DataLen = dataLen;
|
||||
return dataLen;
|
||||
}
|
||||
|
||||
public IndexBlock setDataLen(int dataLen)
|
||||
{
|
||||
this.dataLen = dataLen;
|
||||
return this;
|
||||
}
|
||||
|
||||
public static int GetIndexBlockLength()
|
||||
public static int getIndexBlockLength()
|
||||
{
|
||||
return LENGTH;
|
||||
}
|
||||
|
|
@ -69,7 +92,7 @@
|
|||
*
|
||||
* @return byte[]
|
||||
*/
|
||||
public byte[] GetBytes()
|
||||
public byte[] getBytes()
|
||||
{
|
||||
/*
|
||||
* +------------+-----------+-----------+
|
||||
|
|
@ -77,13 +100,13 @@
|
|||
* +------------+-----------+-----------+
|
||||
* start ip end ip data ptr + len
|
||||
*/
|
||||
var b = new byte[12];
|
||||
byte[] b = new byte[12];
|
||||
|
||||
Util.writeIntLong(b, 0, StartIp); //start ip
|
||||
Util.writeIntLong(b, 4, EndIp); //end ip
|
||||
Util.writeIntLong(b, 0, startIp); //start ip
|
||||
Util.writeIntLong(b, 4, endIp); //end ip
|
||||
|
||||
//write the data ptr and the length
|
||||
var mix = DataPtr | DataLen << 24 & 0xFF000000L;
|
||||
long mix = dataPtr | ((dataLen << 24) & 0xFF000000L);
|
||||
Util.writeIntLong(b, 8, mix);
|
||||
|
||||
return b;
|
||||
|
|
|
|||
|
|
@ -6,13 +6,7 @@ namespace DbMaker
|
|||
{
|
||||
static void Main(string[] args)
|
||||
{
|
||||
var fn = @"G:\src\ip2region\data\ip2region.db";
|
||||
using (var searcher = new DbSearcher(new DbConfig(), fn))
|
||||
{
|
||||
Console.WriteLine(searcher.BinarySearch("202.102.227.68"));
|
||||
Console.WriteLine(searcher.BTreeSearch("202.102.227.68"));
|
||||
Console.ReadLine();
|
||||
}
|
||||
Console.WriteLine("Hello World!");
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,49 @@
|
|||
using System;
|
||||
using System.IO;
|
||||
|
||||
namespace DbMaker
|
||||
{
|
||||
public class RandomAccessFile : IDisposable
|
||||
{
|
||||
private readonly Stream _stream;
|
||||
|
||||
public RandomAccessFile(String file) : this(File.OpenRead(file))
|
||||
{
|
||||
|
||||
}
|
||||
|
||||
public RandomAccessFile(Stream stream)
|
||||
{
|
||||
if (stream == null)
|
||||
{
|
||||
throw new ArgumentNullException(nameof(stream));
|
||||
}
|
||||
_stream = stream;
|
||||
}
|
||||
|
||||
public void Dispose()
|
||||
{
|
||||
_stream?.Dispose();
|
||||
}
|
||||
|
||||
public long length()
|
||||
{
|
||||
return _stream.Length;
|
||||
}
|
||||
|
||||
public void seek(long position)
|
||||
{
|
||||
_stream.Seek(position, SeekOrigin.Begin);
|
||||
}
|
||||
|
||||
public void readFully(byte[] dbBinStr, int offset, int count)
|
||||
{
|
||||
_stream.Read(dbBinStr, offset, count);
|
||||
}
|
||||
|
||||
public void close()
|
||||
{
|
||||
_stream.Dispose();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -1,14 +1,16 @@
|
|||
using System;
|
||||
using System.Collections.Generic;
|
||||
using System.Net;
|
||||
using System;
|
||||
using System.Text;
|
||||
|
||||
namespace DbMaker
|
||||
{
|
||||
/// <summary>
|
||||
/// util class
|
||||
/// </summary>
|
||||
public static class Util
|
||||
|
||||
|
||||
/**
|
||||
* util class
|
||||
*
|
||||
* @author chenxin<chenxin619315@gmail.com>
|
||||
*/
|
||||
public class Util
|
||||
{
|
||||
/**
|
||||
* write specfield bytes to a byte array start from offset
|
||||
|
|
@ -22,6 +24,7 @@ namespace DbMaker
|
|||
{
|
||||
for (int i = 0; i < bytes; i++)
|
||||
{
|
||||
//b[offset++] = (byte)((v >>> (8 * i)) & 0xFF);
|
||||
b[offset++] = (byte) ((v >> (8 * i)) & 0xFF);
|
||||
}
|
||||
}
|
||||
|
|
@ -95,14 +98,16 @@ namespace DbMaker
|
|||
*/
|
||||
public static long ip2long(String ip)
|
||||
{
|
||||
ip = ip.Trim();
|
||||
String[] ips = ip.Split('.');
|
||||
long ip1 = Int64.Parse(ips[0]);
|
||||
long ip2 = Int64.Parse(ips[1]);
|
||||
long ip3 = Int64.Parse(ips[2]);
|
||||
long ip4 = Int64.Parse(ips[3]);
|
||||
long ip2long = 1L * ip1 * 256 * 256 * 256 + ip2 * 256 * 256 + ip3 * 256 + ip4;
|
||||
return ip2long;
|
||||
throw new NotImplementedException();
|
||||
//String[] p = ip.Split("\\.");
|
||||
//if ( p.Length != 4 ) return 0;
|
||||
|
||||
//int p1 = ((Convert.ToInt32(p[0]) << 24) & 0xFF000000);
|
||||
//int p2 = ((Integer.valueOf(p[1]) << 16) & 0x00FF0000);
|
||||
//int p3 = ((Integer.valueOf(p[2]) << 8) & 0x0000FF00);
|
||||
//int p4 = ((Integer.valueOf(p[3]) << 0) & 0x000000FF);
|
||||
|
||||
//return ((p1 | p2 | p3 | p4) & 0xFFFFFFFFL);
|
||||
}
|
||||
|
||||
/**
|
||||
|
|
@ -135,12 +140,15 @@ namespace DbMaker
|
|||
String[] p = ip.Split("\\.");
|
||||
if (p.Length != 4) return false;
|
||||
|
||||
//for ( String pp : p ) {
|
||||
//for ( String pp : p ) {
|
||||
foreach (var pp in p)
|
||||
{
|
||||
if (pp.Length > 3) return false;
|
||||
int val = Convert.ToInt32(pp); //Integer.valueOf(pp);
|
||||
int val = Int32.Parse(pp); //Integer.valueOf(pp);
|
||||
if (val > 255) return false;
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue