/*
* Copyright (c) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 David Berkman
*
* This file is part of the SmallMind Code Project.
*
* The SmallMind Code Project is free software, you can redistribute
* it and/or modify it under either, at your discretion...
*
* 1) The terms of 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.
*
* ...or...
*
* 2) The terms of the Apache License, Version 2.0.
*
* The SmallMind Code Project 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 or Apache License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* and the Apache License along with the SmallMind Code Project. If not, see
* <http://www.gnu.org/licenses/> or <http://www.apache.org/licenses/LICENSE-2.0>.
*
* Additional permission under the GNU Affero GPL version 3 section 7
* ------------------------------------------------------------------
* If you modify this Program, or any covered work, by linking or
* combining it with other code, such other code is not for that reason
* alone subject to any of the requirements of the GNU Affero GPL
* version 3.
*/
package org.smallmind.nutsnbolts.resource;
import java.util.HashMap;
public class ResourceParser {
private final HashMap<ResourceSchemes, ResourceFactory> factoryMap;
public ResourceParser (ResourceFactory... factories) {
factoryMap = new HashMap<>();
if (factories != null) {
for (ResourceFactory factory : factories) {
addResourceFactory(factory);
}
}
}
public void addResourceFactory (ResourceFactory factory) {
synchronized (factoryMap) {
factoryMap.put(factory.getValidSchemes(), factory);
}
}
public Resource parseResource (String resourceIdentifier)
throws ResourceException {
String scheme;
int colonPos;
scheme = ((colonPos = resourceIdentifier.indexOf(':')) < 0) ? ResourceType.FILE.getResourceScheme() : resourceIdentifier.substring(0, colonPos);
synchronized (factoryMap) {
for (ResourceSchemes resourceSchemes : factoryMap.keySet()) {
if (resourceSchemes.containsScheme(scheme)) {
return factoryMap.get(resourceSchemes).createResource(scheme, resourceIdentifier.substring(colonPos + 1));
}
}
}
throw new ResourceException("Could not locate a ResourceFactory for handling scheme(%s)", scheme);
}
}