/*
* LicenseEnumeration.java
*
* Created on November 20, 2005, 3:20 PM
*
* This library is provided under dual licenses.
* You may choose the terms of the Lesser General Public License or the Apache
* License at your discretion.
*
* Copyright (C) 2005 Robert Cooper, Temple of the Screaming Penguin
*
*
* This library 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 2.1 of the License, or (at your option) any later version.
*
* This library 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 library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*
* 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 org.rometools.feed.module.cc.types;
import com.sun.syndication.feed.impl.EqualsBean;
import com.sun.syndication.feed.impl.ToStringBean;
import java.util.HashMap;
import java.util.Iterator;
import java.util.StringTokenizer;
/**
* @version $Revision: 1.1 $
* @author <a href="mailto:cooper@screaming-penguin.com">Robert "kebernet" Cooper</a>
*/
public class License {
private static final String CC_START = "http://creativecommons.org/licenses/";
private static final HashMap lookupLicense = new HashMap();
public static final License NO_DERIVS = new License("http://creativecommons.org/licenses/nd/1.0/",new Behaviour[0],new Behaviour[] {
Behaviour.DISTRIBUTION,Behaviour.REPRODUCTION
});
public static final License NO_DERIVS_NONCOMMERCIAL = new License("http://creativecommons.org/licenses/nd-nc/1.0/",new Behaviour[] {
Behaviour.NONCOMMERCIAL
},new Behaviour[] {Behaviour.DISTRIBUTION,Behaviour.REPRODUCTION});
public static final License NONCOMMERCIAL = new License("http://creativecommons.org/licenses/nc/1.0/",new Behaviour[] {
Behaviour.NONCOMMERCIAL
},new Behaviour[] {
Behaviour.DERIVATIVE,Behaviour.DISTRIBUTION,Behaviour.REPRODUCTION
});
public static final License SHARE_ALIKE = new License("http://creativecommons.org/licenses/sa/1.0/",new Behaviour[] {
Behaviour.COPYLEFT
},new Behaviour[] {
Behaviour.DERIVATIVE,Behaviour.DISTRIBUTION,Behaviour.REPRODUCTION
});
public static final License SHARE_ALIKE_NONCOMMERCIAL = new License("http://creativecommons.org/licenses/nc-sa/1.0/",new Behaviour[] {
Behaviour.COPYLEFT,Behaviour.NONCOMMERCIAL
},new Behaviour[] {
Behaviour.DERIVATIVE,Behaviour.DISTRIBUTION,Behaviour.REPRODUCTION
});
public static final License SHARE_ALIKE_ATTRIBUTION = new License("http://creativecommons.org/licenses/by-sa/2.5/",new Behaviour[] {
Behaviour.COPYLEFT,Behaviour.ATTRIBUTION
},new Behaviour[] {
Behaviour.DERIVATIVE,Behaviour.DISTRIBUTION,Behaviour.REPRODUCTION
});
public static final License SHARE_ALIKE_NONCOMMERCIAL_ATTRIBUTION = new License("http://creativecommons.org/licenses/by-nc-sa/2.5/",new Behaviour[] {
Behaviour.COPYLEFT,Behaviour.ATTRIBUTION,Behaviour.NONCOMMERCIAL
},new Behaviour[] {
Behaviour.DERIVATIVE,Behaviour.DISTRIBUTION,Behaviour.REPRODUCTION
});
public static final License NONCOMMERCIAL_ATTRIBUTION = new License("http://creativecommons.org/licenses/by-nc/2.5/",new Behaviour[] {
Behaviour.ATTRIBUTION,Behaviour.NONCOMMERCIAL
},new Behaviour[] {
Behaviour.DERIVATIVE,Behaviour.DISTRIBUTION,Behaviour.REPRODUCTION
});
public static final License NONCOMMERCIAL_ATTRIBUTION_NO_DERIVS = new License("http://creativecommons.org/licenses/by-nc-nd/2.5/",new Behaviour[] {
Behaviour.ATTRIBUTION,Behaviour.NONCOMMERCIAL
},new Behaviour[] {Behaviour.DISTRIBUTION,Behaviour.REPRODUCTION});
public static final License ATTRIBUTION_NO_DERIVS = new License("http://creativecommons.org/licenses/by-nd/2.5/",new Behaviour[] {
Behaviour.ATTRIBUTION
},new Behaviour[] {Behaviour.DISTRIBUTION,Behaviour.REPRODUCTION});
public static final License ATTRIBUTION = new License("http://creativecommons.org/licenses/by/2.5/",new Behaviour[] {
Behaviour.ATTRIBUTION
},new Behaviour[] {
Behaviour.DERIVATIVE,Behaviour.DISTRIBUTION,Behaviour.REPRODUCTION
});
private String uri;
private Behaviour[] permits;
private Behaviour[] requires;
/**
* Creates a new instance of License
*/
public License(String uri,Behaviour[] requires,Behaviour[] permits) {
this.requires = requires;
this.permits = permits;
this.uri = uri;
License.lookupLicense.put(uri,this);
if(this.uri.endsWith("/")) {
//System.out.println(uri.substring(0,this.uri.lastIndexOf("/")));
License.lookupLicense.put(uri.substring(0,this.uri.lastIndexOf("/")),this);
}
}
public static License findByValue(String uri) {
License found = (License)License.lookupLicense.get(uri);
//No I am going to try an guess about unknown licenses
// This is try and match known CC licenses of other versions or various URLs to
// current licenses, then make a new one with the same permissions.
if(found == null && uri.startsWith("http://") && uri.toLowerCase().indexOf("creativecommons.org") != -1) {
Iterator it = License.lookupLicense.keySet().iterator();
while(it.hasNext()&&(found == null)) {
try{
String key = (String)it.next();
if(key.startsWith( CC_START ) ){
String licensePath = key.substring( CC_START.length(), key.length() );
StringTokenizer tok = new StringTokenizer( licensePath, "/");
String license = tok.nextToken();
String version = tok.nextToken();
if( uri.toLowerCase().indexOf("creativecommons.org/licenses/"+license) != -1){
License current = (License) lookupLicense.get( key );
found = new License( uri, current.getRequires(), current.getPermits() );
}
}
} catch(Exception e){
e.printStackTrace();
}
}
}
//OK, we got here. If we haven't found a match, return a new License with unknown permissions.
if( found == null ){
found = new License( uri, null, null );
}
return found;
}
public Behaviour[] getPermits() {
return this.permits;
}
public Behaviour[] getRequires() {
return this.requires;
}
public String toString() {
ToStringBean tsb = new ToStringBean( License.class, this );
return tsb.toString();
}
public String getValue() {
return this.uri;
}
public boolean equals(Object obj) {
EqualsBean eBean = new EqualsBean(License.class,this);
return eBean.beanEquals(obj);
}
public int hashCode() {
EqualsBean equals = new EqualsBean(License.class,this);
return equals.beanHashCode();
}
public static class Behaviour {
private static final HashMap lookup = new HashMap();
public static final Behaviour REPRODUCTION = new Behaviour("http://web.resource.org/cc/Reproduction");
public static final Behaviour DISTRIBUTION = new Behaviour("http://web.resource.org/cc/Distribution");
public static final Behaviour DERIVATIVE = new Behaviour("http://web.resource.org/cc/DerivativeWorks");
public static final Behaviour NOTICE = new Behaviour("http://web.resource.org/cc/Notice");
public static final Behaviour ATTRIBUTION = new Behaviour("http://web.resource.org/cc/Attribution");
public static final Behaviour COPYLEFT = new Behaviour("http://web.resource.org/cc/Copyleft");
public static final Behaviour NONCOMMERCIAL = new Behaviour("http://web.resource.org/cc/Noncommercial");
private String uri;
private Behaviour(String uri) {
this.uri = uri;
Behaviour.lookup.put(uri,this);
}
public static Behaviour findByValue(String uri) {
return (Behaviour)Behaviour.lookup.get(uri);
}
public String toString() {
return this.uri;
}
}
}