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Value.java
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Value.java
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/*
* Copyright 2013-2016 Netherlands Forensic Institute
*
* 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 io.parsingdata.metal.expression.value;
import static io.parsingdata.metal.Util.checkNotNull;
import java.math.BigInteger;
import java.util.BitSet;
import javax.xml.bind.DatatypeConverter;
import io.parsingdata.metal.encoding.ByteOrder;
import io.parsingdata.metal.encoding.Encoding;
public class Value {
private final byte[] _data;
private final Encoding _enc;
public Value(final byte[] data, final Encoding enc) {
_data = data.clone();
_enc = checkNotNull(enc, "enc");
}
public byte[] getValue() {
return _data.clone();
}
public BigInteger asNumeric() {
return _enc.isSigned() ? new BigInteger(_enc.getByteOrder().apply(_data))
: new BigInteger(1, _enc.getByteOrder().apply(_data));
}
public String asString() {
return new String(_data, _enc.getCharset());
}
public BitSet asBitSet() {
return BitSet.valueOf(_enc.getByteOrder() == ByteOrder.BIG_ENDIAN ? ByteOrder.LITTLE_ENDIAN.apply(_data) : _data);
}
public Encoding getEncoding() {
return _enc;
}
public OptionalValue operation(final ValueOperation op) {
return op.execute(this);
}
@Override
public String toString() {
return getClass().getSimpleName() + "(" + DatatypeConverter.printHexBinary(_data) + ")";
}
}