/*******************************************************************************
* Copyright (c) 2002 - 2006 IBM Corporation.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package com.ibm.wala.util.intset;
import java.util.Iterator;
import java.util.TreeSet;
/**
* An object that creates mutable sparse int sets.
*/
public class MutableSparseLongSetFactory implements MutableLongSetFactory {
/**
* @param set
* @throws IllegalArgumentException if set is null
*/
@Override
public MutableLongSet make(long[] set) {
if (set == null) {
throw new IllegalArgumentException("set is null");
}
if (set.length == 0) {
return new MutableSparseLongSet();
} else {
// XXX not very efficient.
TreeSet<Long> T = new TreeSet<Long>();
for (int i = 0; i < set.length; i++) {
T.add(Long.valueOf(set[i]));
}
long[] copy = new long[T.size()];
int i = 0;
for (Iterator<Long> it = T.iterator(); it.hasNext();) {
Long I = it.next();
copy[i++] = I.longValue();
}
MutableSparseLongSet result = new MutableSparseLongSet(copy);
return result;
}
}
@Override
public MutableLongSet parse(String string) throws NumberFormatException {
int[] backingStore = SparseIntSet.parseIntArray(string);
long[] bs = new long[ backingStore.length ];
for(int i = 0; i < bs.length; i++) bs[i] = backingStore[i];
return new MutableSparseLongSet(bs);
}
/*
* @see com.ibm.wala.util.intset.MutableLongSetFactory#make(com.ibm.wala.util.intset.LongSet)
*/
@Override
public MutableLongSet makeCopy(LongSet x) throws IllegalArgumentException {
if (x == null) {
throw new IllegalArgumentException("x == null");
}
return MutableSparseLongSet.make(x);
}
/*
* @see com.ibm.wala.util.intset.MutableLongSetFactory#make()
*/
@Override
public MutableLongSet make() {
return new MutableSparseLongSet();
}
}