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Groovy: A powerful, dynamic language for the JVM
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.codehaus.groovy.tools.gse;
import java.util.LinkedHashMap;
import java.util.LinkedHashSet;
import java.util.Set;
import java.util.TreeSet;
public class StringSetMap extends LinkedHashMap> {
public StringSetMap() {
super();
}
public StringSetMap(StringSetMap other) {
for (String key : other.keySet()) {
get(key).addAll(other.get(key));
}
}
public Set get(Object o){
String name = (String) o;
Set set = super.get(name);
if (set==null) {
set = new LinkedHashSet();
put(name,set);
}
return set;
}
public void makeTransitiveHull() {
Set nameSet = new TreeSet(keySet());
// TODO use it or lose it
StringSetMap ret = new StringSetMap(this);
for (String k: nameSet) {
StringSetMap delta = new StringSetMap();
for (String i: nameSet) {
for (String j: nameSet) {
Set iSet = get(i);
if (iSet.contains(k) && get(k).contains(j)) {
delta.get(i).add(j);
}
}
}
for (String i: nameSet) get(i).addAll(delta.get(i));
}
}
}