/*
* SonarQube Java
* Copyright (C) 2012-2016 SonarSource SA
* mailto:contact AT sonarsource DOT com
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
package org.sonar.java.bytecode.loader;
import java.net.URL;
/**
* Specifies resource loading behavior.
*/
interface Loader {
/**
* Finds the resource with the given name.
*
* @param name resource name
* @return an <tt>URL</tt> object for reading the resource, or
* <tt>null</tt> if the resource could not be found
* @throws IllegalStateException if loader has been closed
*/
URL findResource(String name);
/**
* Loads bytes of the resource with the given name.
*
* @param name resource name
* @return an array of <tt>byte</tt>s, or
* <tt>null</tt> if the resource could not be found or could not be loaded for some reason
* @throws IllegalStateException if loader has been closed
*/
byte[] loadBytes(String name);
/**
* Closes this loader, so that it can no longer be used to load new resources.
* If loader is already closed, then invoking this method has no effect.
*/
void close();
}