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A Java wrapper for DB-IP free city database
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ankushs92/Java-DB-IP
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A simple to use Java library for the freely available DB-IP IP address to city dataset.
Requires Java 8
The entire dataset is loaded into a TreeMap . Make sure that you have about 2 GB of Heap space available to load it.
Links
With maven :
<dependency>
<groupId>in.ankushs</groupId>
<artifactId>Java-DB-IP</artifactId>
<version>2.0</version>
</dependency>Or gradle:
compile('in.ankushs:Java-DB-IP:2.0')
Instructions
In order to get geographical information for an ip address, just pass the dbip-city-latest.csv.gz as a File object to DbIpClient as follows:
final File gzipFile = new File(PATH_TO_dbip-city-latest.csv.gz);
final DbIpClient client = new DbIpClient(gzipFile);Once the data is loaded from the file into memory, any subsequent invocation of the above code would not load the data .
Next, just fetch the data for a ip ,like so :
final DbIpClient client = new DbIpClient(gzip);
final GeoEntity geoEntity = client.lookup("31.45.127.255");
final String city = geoEntity.getCity();
final String country = geoEntity.getCountry();
final String province = geoEntity.getProvince();
final String countryCode = geoEntity.getCountryCode();
System.out.println("city : " + city);
System.out.println("province : " + province);
System.out.println("country : " + country);
System.out.println("country code : " + countryCode);
This prints :
city : New Delhi
province : Delhi
country : India
country code : IN
For IPV6, do the same :
final DbIpClient client = new DbIpClient(gzip);
final String ipv6 = "2c0f:f468:ffff:ffff:ffff:ffff:ffff:ffff";
final GeoEntity geoEntity = client.lookup(ipv6);That's pretty much it.
Performance
The lookup is stunningly fast. Since the entire data is cached the JVM, you can expect each lookup to take around 0.1 ms
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A Java wrapper for DB-IP free city database
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