Package net.minecraftforge.common

Source Code of net.minecraftforge.common.ForgeVersion

/**
* This software is provided under the terms of the Minecraft Forge Public
* License v1.0.
*/

package net.minecraftforge.common;
import static net.minecraftforge.common.ForgeVersion.Status.*;

import java.io.InputStream;
import java.net.URL;
import java.util.Map;

import com.google.common.io.ByteStreams;
import com.google.gson.Gson;

import cpw.mods.fml.common.versioning.ArtifactVersion;
import cpw.mods.fml.common.versioning.DefaultArtifactVersion;

public class ForgeVersion
{
    //This number is incremented every time we remove deprecated code/major API changes, never reset
    public static final int majorVersion    = 10;
    //This number is incremented every minecraft release, never reset
    public static final int minorVersion    = 13;
    //This number is incremented every time a interface changes or new major feature is added, and reset every Minecraft version
    public static final int revisionVersion = 2;
    //This number is incremented every time Jenkins builds Forge, and never reset. Should always be 0 in the repo code.
    public static final int buildVersion    = 0;

    private static Status status = PENDING;
    private static String target = null;

    public static int getMajorVersion()
    {
        return majorVersion;
    }

    public static int getMinorVersion()
    {
        return minorVersion;
    }

    public static int getRevisionVersion()
    {
        return revisionVersion;
    }

    public static int getBuildVersion()
    {
        return buildVersion;
    }

    public static Status getStatus()
    {
        return status;
    }

    public static String getTarget()
    {
        return target;
    }

    public static String getVersion()
    {
        return String.format("%d.%d.%d.%d", majorVersion, minorVersion, revisionVersion, buildVersion);
    }

    public static enum Status
    {
        PENDING,
        FAILED,
        UP_TO_DATE,
        OUTDATED,
        AHEAD,
        BETA,
        BETA_OUTDATED
    }

    public static void startVersionCheck()
    {
        new Thread("Forge Version Check")
        {
            @SuppressWarnings("unchecked")
            @Override
            public void run()
            {
                try
                {
                    URL url = new URL("http://files.minecraftforge.net/maven/net/minecraftforge/forge/promotions_slim.json");
                    InputStream con = url.openStream();
                    String data = new String(ByteStreams.toByteArray(con));
                    con.close();

                    Map<String, Object> json = new Gson().fromJson(data, Map.class);
                    //String homepage = (String)json.get("homepage");
                    Map<String, String> promos = (Map<String, String>)json.get("promos");

                    String rec = promos.get(MinecraftForge.MC_VERSION + "-recommended");
                    String lat = promos.get(MinecraftForge.MC_VERSION + "-latest");
                    ArtifactVersion current = new DefaultArtifactVersion(getVersion());

                    if (rec != null)
                    {
                        ArtifactVersion recommended = new DefaultArtifactVersion(rec);
                        int diff = recommended.compareTo(current);

                        if (diff == 0)
                            status = UP_TO_DATE;
                        else if (diff < 0)
                        {
                            status = AHEAD;
                            if (lat != null)
                            {
                                if (current.compareTo(new DefaultArtifactVersion(lat)) < 0)
                                {
                                    status = OUTDATED;
                                    target = lat;
                                }
                            }
                        }
                        else
                        {
                            status = OUTDATED;
                            target = rec;
                        }
                    }
                    else if (lat != null)
                    {
                        if (current.compareTo(new DefaultArtifactVersion(lat)) < 0)
                        {
                            status = BETA_OUTDATED;
                            target = lat;
                        }
                        else
                            status = BETA;
                    }
                    else
                        status = BETA;
                }
                catch (Exception e)
                {
                    e.printStackTrace();
                    status = FAILED;
                }
            }
        }.start();
    }
}
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