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@thekeenant thekeenant/Profile.java
Last active Aug 29, 2015

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Search Minecraft profiles by name or UUID. Requires Gson.
import com.google.gson.Gson;
import com.google.gson.JsonArray;
import com.google.gson.JsonObject;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;
public class Profile {
private final String username;
private final String uuid;
private Profile(String username, String uuid) {
this.username = username;
this.uuid = uuid;
}
public String getUsername() {
return username;
}
public String getUuid() {
return uuid;
}
@Override
public String toString() {
return "Profile{username=" + username + ",uuid=" + uuid + "}";
}
public static List<Profile> findByName(List<String> names) throws Exception {
List<Profile> list = new ArrayList<Profile>(names.size());
int requests = 1;
for (int i = 0; i < requests; i++) {
HttpURLConnection connection = getNameConnection();
String body = new Gson().toJson(names.subList(i * 100, Math.min((i + 1) * 100, names.size())));
OutputStream stream = connection.getOutputStream();
stream.write(body.getBytes());
stream.flush();
stream.close();
JsonArray array = new Gson().fromJson(new InputStreamReader(connection.getInputStream()), JsonArray.class);
for (Object profile : array) {
JsonObject jsonProfile = (JsonObject) profile;
String name = jsonProfile.get("name").getAsString();
String id = jsonProfile.get("id").getAsString();
list.add(new Profile(name, id));
}
}
return list;
}
public static List<Profile> findbyUuid(List<String> uuids) throws Exception {
List<Profile> list = new ArrayList<Profile>();
for (String uuid : uuids) {
HttpURLConnection connection = getUUIDConnection(uuid);
JsonArray array = new Gson().fromJson(new InputStreamReader(connection.getInputStream()), JsonArray.class);
if (array.size() > 0)
list.add(new Profile(array.get(0).getAsJsonObject().get("name").getAsString(), uuid));
}
return list;
}
private static HttpURLConnection getNameConnection() throws Exception {
URL url = new URL("https://api.mojang.com/profiles/minecraft");
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("POST");
connection.setRequestProperty("Content-Type", "application/json");
connection.setUseCaches(false);
connection.setDoOutput(true);
return connection;
}
private static HttpURLConnection getUUIDConnection(String uuid) throws Exception {
URL url = new URL("https://api.mojang.com/user/profiles/" + uuid + "/names");
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("GET");
connection.setRequestProperty("Content-Type", "application/json");
connection.setUseCaches(false);
connection.setDoOutput(true);
return connection;
}
}
import java.util.ArrayList;
import java.util.List;
import java.util.Arrays;
public class ProfileExample {
public static void main(String... args) {
// Username
List<Profile> profiles = Profile.findByName(Arrays.asList("swivr", "Notch"));
System.out.println(profiles);
// Uuid
profiles = Profile.findByUuid(Arrays.asList("df91bff5b7e54b54b7d4463efadac146", "069a79f444e94726a5befca90e38aaf5"));
System.out.println(profiles);
}
}
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