package org.infinispan.io;
import java.io.IOException;
import net.jcip.annotations.ThreadSafe;
/**
* A byte stream that is immutable. Bytes are captured during construction and cannot be written to thereafter.
*
* @author Manik Surtani
* @since 5.1
*/
@ThreadSafe
public final class ImmutableMarshalledValueByteStream extends MarshalledValueByteStream {
private final byte[] bytes;
public ImmutableMarshalledValueByteStream(byte[] bytes) {
this.bytes = bytes;
}
@Override
public int size() {
return bytes.length;
}
@Override
public byte[] getRaw() {
return bytes;
};
@Override
public void write(int b) throws IOException {
throw new UnsupportedOperationException("Immutable");
}
@Override
public boolean equals(Object thatObject) {
if (thatObject instanceof MarshalledValueByteStream) {
MarshalledValueByteStream that = (MarshalledValueByteStream) thatObject;
if (this == that) return true;
byte[] thoseBytes = that.getRaw();
if (this.bytes == thoseBytes) return true;
if (this.size() != that.size()) return false;
for (int i=0; i<bytes.length; i++) {
if (this.bytes[i] != thoseBytes[i]) return false;
}
return true;
} else {
return false;
}
}
@Override
public int hashCode() {
//Implementation would either be slow or not consistent with the equals definition
//just avoid needing the hashCode:
throw new UnsupportedOperationException();
}
}