Library.java

/*
 * This file is part of FTB Launcher.
 *
 * Copyright © 2012-2016, FTB Launcher Contributors <https://github.com/Slowpoke101/FTBLaunch/>
 * FTB Launcher is licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *  http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package net.feed_the_beast.launcher.json.versions;

import java.util.List;
import java.util.Map;

import lombok.Getter;
import net.ftb.data.Settings;
import net.ftb.download.Locations;
import net.ftb.util.DownloadUtils;

public class Library
{
	public String name;
	public List<OSRule> rules;
	public Map<OS, String> natives;
	public ExtractRule extract;
	public String url;
	public boolean localRepo;// when true the DL will be grabbed from the FTB Repo's and use the FTB hash check methods instead of the etag
	public List<String> checksums;// contains sha1 hashes of the file -- must check against all values!
	public Boolean download;// used in pack.json to force DL's form mojang
	private Action _applies = null;

	public boolean applies ()
	{
		if (_applies == null)
		{
			_applies = Action.DISALLOW;
			if (rules == null)
			{
				_applies = Action.ALLOW;
			}
			else
			{
				for(OSRule rule : rules)
				{
					if (rule.applies())
					{
						_applies = rule.action;
					}
				}
			}
		}
		return _applies == Action.ALLOW;
	}

	@Getter
	private Artifact _artifact = null;

	public String getPath ()
	{
		if (_artifact == null)
		{
			_artifact = new Artifact(name);
		}
		return _artifact.getPath();
	}

	public String getPathNatives ()
	{
		if (natives == null)
		{
			return null;
		}
		if (_artifact == null)
		{
			_artifact = new Artifact(name);
		}
		return _artifact.getPath(natives.get(OS.CURRENT).replace("${arch}", (Settings.getSettings().getCurrentJava().is64bits ? "64" : "32")));
	}

	public String getUrl ()
	{
		return (url == null ? (localRepo ? DownloadUtils.getCreeperhostLink(Locations.ftb_maven) : Locations.mc_libs) : url);
	}

	@Override
	public String toString ()
	{
		return name;
	}

	public class Artifact
	{
		@Getter
		private String domain;
		@Getter
		private String name;
		@Getter
		private String version;
		@Getter
		private String classifier;
		@Getter
		private String ext = "jar";

		public Artifact (String rep)
		{
			String[] pts = rep.split(":");
			int idx = pts[pts.length - 1].indexOf('@');
			if (idx != -1)
			{
				ext = pts[pts.length - 1].substring(idx + 1);
				pts[pts.length - 1] = pts[pts.length - 1].substring(0, idx);
			}
			domain = pts[0];
			name = pts[1];
			version = pts[2];
			if (pts.length > 3)
			{
				classifier = pts[3];
			}
		}

		public String getPath ()
		{
			return getPath(classifier);
		}

		public String getPath (String classifier)
		{
			String ret = String.format("%s/%s/%s/%s-%s", domain.replace('.', '/'), name, version, name, version);
			if (classifier != null)
			{
				ret += "-" + classifier;
			}
			return ret + "." + ext;
		}
	}
}