VillagerTradeLimiter/src/com/pretzel/dev/villagertradelimiter/nms/utils/VersionChecker.java

107 lines
4.1 KiB
Java

package com.pretzel.dev.villagertradelimiter.nms.utils;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.logging.Level;
import com.google.gson.JsonArray;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonParser;
import com.pretzel.dev.villagertradelimiter.nms.NBTItem;
/**
* This class uses the Spiget API to check for updates
*
*/
public class VersionChecker {
private static final String USER_AGENT = "nbt-api Version check";
private static final String REQUEST_URL = "https://api.spiget.org/v2/resources/7939/versions?size=100";
protected static void checkForUpdates() throws Exception {
URL url = new URL(REQUEST_URL);
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.addRequestProperty("User-Agent", USER_AGENT);// Set
// User-Agent
// If you're not sure if the request will be successful,
// you need to check the response code and use #getErrorStream if it
// returned an error code
InputStream inputStream = connection.getInputStream();
InputStreamReader reader = new InputStreamReader(inputStream);
// This could be either a JsonArray or JsonObject
JsonElement element = new JsonParser().parse(reader);
if (element.isJsonArray()) {
// Is JsonArray
JsonArray updates = (JsonArray) element;
JsonObject latest = (JsonObject) updates.get(updates.size() - 1);
int versionDifference = getVersionDifference(latest.get("name").getAsString());
if (versionDifference == -1) { // Outdated
MinecraftVersion.getLogger().log(Level.WARNING,
"[NBTAPI] The NBT-API at '" + NBTItem.class.getPackage() + "' seems to be outdated!");
MinecraftVersion.getLogger().log(Level.WARNING, "[NBTAPI] Current Version: '" + MinecraftVersion.VERSION
+ "' Newest Version: " + latest.get("name").getAsString() + "'");
MinecraftVersion.getLogger().log(Level.WARNING,
"[NBTAPI] Please update the nbt-api or the plugin that contains the api!");
} else if (versionDifference == 0) {
MinecraftVersion.getLogger().log(Level.INFO, "[NBTAPI] The NBT-API seems to be up-to-date!");
} else if (versionDifference == 1) {
MinecraftVersion.getLogger().log(Level.WARNING, "[NBTAPI] The NBT-API at '" + NBTItem.class.getPackage()
+ "' seems to be a future Version, not yet released on Spigot/CurseForge!");
MinecraftVersion.getLogger().log(Level.WARNING, "[NBTAPI] Current Version: '" + MinecraftVersion.VERSION
+ "' Newest Version: " + latest.get("name").getAsString() + "'");
}
} else {
// wut?!
MinecraftVersion.getLogger().log(Level.WARNING,
"[NBTAPI] Error when looking for Updates! Got non Json Array: '" + element.toString() + "'");
}
}
// -1 = we are outdated
// 0 = up to date
// 1 = using a future version
// This method is only able to compare the Format 0.0.0(-SNAPSHOT)
private static int getVersionDifference(String version) {
String current = MinecraftVersion.VERSION;
if (current.equals(version))
return 0;
String pattern = "\\.";
if (current.split(pattern).length != 3 || version.split(pattern).length != 3)
return -1;
int curMaj = Integer.parseInt(current.split(pattern)[0]);
int curMin = Integer.parseInt(current.split(pattern)[1]);
String curPatch = current.split(pattern)[2];
int relMaj = Integer.parseInt(version.split(pattern)[0]);
int relMin = Integer.parseInt(version.split(pattern)[1]);
String relPatch = version.split(pattern)[2];
if (curMaj < relMaj)
return -1;
if (curMaj > relMaj)
return 1;
if (curMin < relMin)
return -1;
if (curMin > relMin)
return 1;
int curPatchN = Integer.parseInt(curPatch.split("-")[0]);
int relPatchN = Integer.parseInt(relPatch.split("-")[0]);
if (curPatchN < relPatchN)
return -1;
if (curPatchN > relPatchN)
return 1;
if (!relPatch.contains("-") && curPatch.contains("-"))
return -1; // Release has no - but we do = We use a Snapshot of the
// release
if (relPatch.contains("-") && curPatch.contains("-"))
return 0; // Release and cur are Snapshots/alpha/beta
return 1;
}
}