org.bimserver.plugins.ResourceFetcher Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of shared Show documentation

Shared libraries, common parent for both BIMserver and BimServerClientLib

There is a newer version: 2.0.0

package org.bimserver.plugins;

/******************************************************************************
 * Copyright (C) 2009-2016  BIMserver.org
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 * 
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see {@literal}.
 *****************************************************************************/

import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.ArrayList;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Set;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public abstract class ResourceFetcher {
	private static final Logger LOGGER = LoggerFactory.getLogger(ResourceFetcher.class);
	private final Set paths = new LinkedHashSet<>();	
	
	public void addPath(Path path) {
		paths.add(path);
	}
	
	public URL getResource(String name) throws IOException {
		Path file = getFile(name);
		if (file != null && Files.exists(file)) {
			try {
				return file.toUri().toURL();
			} catch (MalformedURLException e) {
				LOGGER.error("", e);
			}
		}
		return null;
	}

	public Path getFile(String name) throws IOException {
		for (Path path : paths) {
			Path file = path.resolve(name);
			if (Files.exists(file)) {
				return file;
			}			
		}
		return null;
	}

	public List getFiles(String name) {
		List result = new ArrayList<>();
		for (Path path : paths) {
			Path file = path.resolve(name);
			if (Files.exists(file)) {
				result.add(file);
			}			
		}
		return result;
	}
}