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Author: XiaoPangxie732

src/main/java/cn/xiaopangxie732/mojang_api/Status.java

@@ -4,13 +4,12 @@
 
 import com.google.gson.Gson;
 
-import cn.xiaopangxie732.mojang_api.exceptions.InvalidServerException;
 import cn.xiaopangxie732.mojang_api.status.StatusServer;
 import cn.xiaopangxie732.mojang_api.status.StatusType;
 import cn.xiaopangxie732.mojang_api.util.Net;
 
 /**
- * Use this class to check Mojang's server status
+ * Used to check the Mojang's servers status.
  * @author XiaoPangxie732
  */
 public class Status {
@@ -21,13 +20,14 @@ public Status() {
 		response = Net.getConnection(url);
 	}
 	/**
-	 * To check server status
-	 * @throws InvalidServerException When the server is invalid or <code>null</code>.
+	 * To check server status.
+	 * @throws NullPointerException When the server is <code>null</code>.
 	 * @param server Which server needs to check the status.
 	 * @return The status of this server.
+	 * @author XiaoPangxie732
 	 */
-	public StatusType getStatus(StatusServer server) throws InvalidServerException {
-		if(server == null) throw new InvalidServerException("null");
+	public StatusType getStatus(StatusServer server) throws NullPointerException {
+		if(server == null) throw new NullPointerException("The server is null");
 		Properties[] result = json.fromJson(response, Properties[].class);
 		String value = result[server.ordinal()].getProperty(server.toString());
 		switch (value) {
@@ -41,9 +41,10 @@ public StatusType getStatus(StatusServer server) throws InvalidServerException {
 		return StatusType.COULD_NOT_CONNECT;
 	}
 	/**
-	 * To flush Mojang's server status.
+	 * To fresh Mojang's servers status.
+	 * @author XiaoPangxie732
 	 */
-	public void flush() {
+	public void fresh() {
 		response = Net.getConnection(url);
 	}
 }

src/main/java/cn/xiaopangxie732/mojang_api/UserName.java

@@ -1,10 +1,65 @@
 package cn.xiaopangxie732.mojang_api;
 
+import java.util.Properties;
+
+import com.google.gson.Gson;
+import com.google.gson.JsonSyntaxException;
+
+import cn.xiaopangxie732.mojang_api.exceptions.UsernameOrTimestampInvalidException;
+import cn.xiaopangxie732.mojang_api.util.Net;
+
 /**
- * Incomplete
+ * To get UUID of username.
  * @author XiaoPangxie732
  */
 public class UserName {
 
-//	public 
+	private static String url = "https://api.mojang.com/users/profiles/minecraft/";
+	private static Gson json = new Gson();
+
+	public static String UUIDAtTime(String username, long timestamp) {
+		String furl = url + username + "?at=" + timestamp;
+		String response = null;
+		try {
+			response = Net.getConnection(furl);
+		} catch(IllegalArgumentException ex) {
+			throw new UsernameOrTimestampInvalidException("Username \"" + username + "\" is invalid or on timestamp \"" + Long.toString(timestamp).replace("0", "Original") + "\" the username wasn't change.");
+		}
+		Properties result = json.fromJson(response, Properties.class);
+		if(!result.getProperty("error", "noError").equals("noError"))
+			throw new IllegalArgumentException(result.getProperty("errorMessage"));
+		return result.getProperty("id");
+	}
+
+	public static String UUIDAtNow(String username) {
+		String furl = url + username;
+		String response;
+		try {
+			response = Net.getConnection(furl);
+		} catch (IllegalArgumentException e) {
+			throw new UsernameOrTimestampInvalidException("Username \"" + username + "\" is invalid");
+		}
+		Properties result = json.fromJson(response, Properties.class);
+		return result.getProperty("id");
+	}
+
+	public static String UUIDAtOriginal(String username) {
+		return UUIDAtTime(username, 0);
+	}
+
+	public static String UUIDOfNames(String... usernames) {
+		if(usernames.length > 100) throw new IllegalArgumentException("Too more names! (" + usernames.length + "/100)");
+		String response = Net.postConnection("https://api.mojang.com/profiles/minecraft", "application/json", json.toJson(usernames));
+		Properties[] names = null;
+		try {
+			names = json.fromJson(response, Properties[].class);
+		} catch (JsonSyntaxException e) {
+			throw new IllegalArgumentException(json.fromJson(response, Properties.class).getProperty("errorMessage"));
+		}
+		String result = "";
+		for(Properties output : names) {
+			result += output.getProperty("name") + "=" + output.getProperty("id") + "\n";
+		}
+		return result;
+	}
 }

src/main/java/cn/xiaopangxie732/mojang_api/exceptions/UsernameOrTimestampInvalidException.java

@@ -0,0 +1,18 @@
+package cn.xiaopangxie732.mojang_api.exceptions;
+
+/**
+ * Throw when the user name on that timestamp has not changed, or the username is invalid.
+ * @author XiaoPangxie732
+ */
+public class UsernameOrTimestampInvalidException extends RuntimeException {
+
+	private static final long serialVersionUID = -3145228876580727833L;
+
+	public UsernameOrTimestampInvalidException() {
+		super();
+	}
+
+	public UsernameOrTimestampInvalidException(String message) {
+		super(message);
+	}
+}

src/main/java/cn/xiaopangxie732/mojang_api/exceptions/package-info.java

@@ -1,5 +1,5 @@
 /**
- * This package stored all exception classes.
+ * The exception package.
  * @author XiaoPangxie732
  */
 package cn.xiaopangxie732.mojang_api.exceptions;

src/main/java/cn/xiaopangxie732/mojang_api/package-info.java

@@ -1,6 +1,5 @@
 /**
- * The MojangAPI main package
- * 
+ * The MojangAPI-in-Java main package
  * @author XiaoPangxie732
  */
 package cn.xiaopangxie732.mojang_api;

src/main/java/cn/xiaopangxie732/mojang_api/status/StatusServer.java

@@ -15,7 +15,7 @@ public enum StatusServer {
 	MOJANG_COM;
 
 	/**
-	 * The toString() method of this class.<br>
+	 * Let enum to string.<br>
 	 * @return E.g MINECRAFT_NET toString() is minecraft.net
 	 * @author XiaoPangxie732
 	 */

src/main/java/cn/xiaopangxie732/mojang_api/status/StatusType.java

@@ -1,7 +1,7 @@
 package cn.xiaopangxie732.mojang_api.status;
 
 /**
- * This class lists all status type.
+ * List all status type.
  * @author XiaoPangxie732
  */
 public enum StatusType {
@@ -11,12 +11,12 @@ public enum StatusType {
 	COULD_NOT_CONNECT;
 
 	/**
-	 * The StatusType toString() method.
+	 * Let enum to string.
 	 * @return E.g GREEN toString() is green.
 	 * @author XiaoPangxie732
 	 */
 	@Override
 	public String toString() {
-		return name().toLowerCase();
+		return name().toLowerCase().replace("_", " ");
 	}
 }

src/main/java/cn/xiaopangxie732/mojang_api/status/package-info.java

@@ -1,5 +1,5 @@
 /**
- * The package about Status.
+ * The <code>Status</code> package.
  * @author XiaoPangxie732
  */
 package cn.xiaopangxie732.mojang_api.status;

src/main/java/cn/xiaopangxie732/mojang_api/util/Net.java

@@ -1,21 +1,54 @@
 package cn.xiaopangxie732.mojang_api.util;
 
+import java.io.IOException;
+import java.net.MalformedURLException;
+import java.net.URISyntaxException;
 import java.net.URL;
-
+import java.nio.charset.Charset;
 import org.apache.http.HttpResponse;
+import org.apache.http.client.ClientProtocolException;
 import org.apache.http.client.methods.HttpGet;
+import org.apache.http.client.methods.HttpPost;
+import org.apache.http.entity.StringEntity;
 import org.apache.http.impl.client.HttpClientBuilder;
 import org.apache.http.util.EntityUtils;
 
-public class Net {
-	public static String getConnection(String url) {
+public final class Net {
+	private Net() {}
+	public static String getConnection(String url) throws IllegalArgumentException {
 		String response = null;
+		HttpGet get = null;
 		try {
-			HttpGet get = new HttpGet(new URL(url).toURI());
+			get = new HttpGet(new URL(url).toURI());
 			HttpResponse re = HttpClientBuilder.create().build().execute(get);
 			response = EntityUtils.toString(re.getEntity());
 			get.releaseConnection();
-		} catch (Exception e) {e.printStackTrace();}
+		} catch(MalformedURLException e){e.printStackTrace();}catch(URISyntaxException e){e.printStackTrace();}catch(ClientProtocolException e){e.printStackTrace();}catch (IOException e) {e.printStackTrace();
+		} finally {
+			if(get != null){
+				get.releaseConnection();
+			}
+		}
 		return response;
 	}
+	public static String postConnection(String url, String ContentType, String RequestParameters) {
+		HttpPost post = null;
+		String retur = null;
+		try {
+			post = new HttpPost(new URL(url).toURI());
+			post.setHeader("Content-Type", ContentType);
+			StringEntity se = new StringEntity(RequestParameters,
+					Charset.forName("UTF-8"));
+			post.setEntity(se);
+			HttpResponse re = HttpClientBuilder.create().build().execute(post);
+			retur = EntityUtils.toString(re.getEntity());
+		} catch (Exception e) {
+			e.printStackTrace();
+		} finally {
+			if(post != null){
+				post.releaseConnection();
+			}
+		}
+		return retur;
+	}
 }