diff options
Diffstat (limited to 'src/org/uic/barcode/asn1/datatypes/Asn1VarSizeBitstring.java')
-rw-r--r-- | src/org/uic/barcode/asn1/datatypes/Asn1VarSizeBitstring.java | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/src/org/uic/barcode/asn1/datatypes/Asn1VarSizeBitstring.java b/src/org/uic/barcode/asn1/datatypes/Asn1VarSizeBitstring.java new file mode 100644 index 0000000..c07f7f0 --- /dev/null +++ b/src/org/uic/barcode/asn1/datatypes/Asn1VarSizeBitstring.java @@ -0,0 +1,58 @@ +package org.uic.barcode.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); + } +} |