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package net.gcdc.asn1.datatypes;
import java.util.AbstractList;
import java.util.BitSet;
import java.util.Collection;
import java.util.Objects;
/**
* Convenience class for Bitstrings of variable size.
* For UPER, {@code List<Boolean>} works just as well.
*/
public class Asn1VarSizeBitstring extends AbstractList<Boolean> {
private final BitSet backing;
@Override public Boolean get(int index) {
return backing.get(index);
}
@Override public int size() {
return backing.length();
}
public Asn1VarSizeBitstring(Collection<Boolean> coll) {
backing = new BitSet();
int bitIndex = 0;
for (Boolean b : coll) {
backing.set(bitIndex, b);
bitIndex++;
}
}
public Asn1VarSizeBitstring(BitSet bitset) {
backing = (BitSet) bitset.clone();
}
protected void setBit(int bitIndex, boolean value) {
backing.set(bitIndex, value);
}
public boolean getBit(int bitIndex) {
return backing.get(bitIndex);
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
if (!super.equals(o)) return false;
Asn1VarSizeBitstring booleen = (Asn1VarSizeBitstring) o;
return Objects.equals(backing, booleen.backing);
}
@Override
public int hashCode() {
return Objects.hash(super.hashCode(), backing);
}
}
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