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Blazingly fast Minecraft world manipulation for artists, builders and everyone else.
/*
* WorldEdit, a Minecraft world manipulation toolkit
* Copyright (C) sk89q
* Copyright (C) WorldEdit team and contributors
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see .
*/
package com.sk89q.worldedit.util.io;
import javax.annotation.Nullable;
import java.io.IOException;
import java.net.URL;
import java.nio.file.Path;
import static com.google.common.base.Preconditions.checkArgument;
/**
* An abstract loader that handles loading resources from bundled URLs or local
* files.
*/
public interface ResourceLoader {
/**
* Gets the bundled resource URL by name, relative to the provided class.
*
*
* The path name must not start with {@code /}.
*
*
* @param clazz The class to search relative to
* @param pathName The path name
* @return The URL to this bundled resource
* @throws IOException if an IO issue occurs
*/
@Nullable
default URL getResource(Class clazz, String pathName) throws IOException {
checkArgument(!pathName.startsWith("/"), "pathName must not start with /");
String qualifiedName = clazz.getName().substring(0, clazz.getName().lastIndexOf('.'))
.replace(".", "/") + "/" + pathName;
return getRootResource(qualifiedName);
}
/**
* Gets the bundled resource URL by name.
*
*
* The path name must not start with {@code /}. It is always
* absolute.
*
*
* @param pathName The path name
* @return The URL to this bundled resource
* @throws IOException if an IO issue occurs
*/
@Nullable
default URL getRootResource(String pathName) throws IOException {
checkArgument(!pathName.startsWith("/"), "pathName must not start with /");
return this.getClass().getClassLoader().getResource(pathName);
}
/**
* Gets the {@link Path} reference to this local resource. The file may not
* exist.
*
* @param pathName The path name
* @return The path reference
*/
Path getLocalResource(String pathName);
}