MessagePack/src/main/java/ch/dissem/msgpack/types/MPDouble.java

60 lines
1.5 KiB
Java

package ch.dissem.msgpack.types;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.nio.ByteBuffer;
import java.util.Objects;
import static ch.dissem.msgpack.types.Utils.bytes;
public class MPDouble implements MPType<Double> {
private double value;
public MPDouble(double value) {
this.value = value;
}
@Override
public Double getValue() {
return value;
}
public void pack(OutputStream out) throws IOException {
out.write(0xCB);
out.write(ByteBuffer.allocate(8).putDouble(value).array());
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
MPDouble mpDouble = (MPDouble) o;
return Double.compare(mpDouble.value, value) == 0;
}
@Override
public int hashCode() {
return Objects.hash(value);
}
@Override
public String toString() {
return String.valueOf(value);
}
public static class Unpacker implements MPType.Unpacker<MPDouble> {
public boolean is(int firstByte) {
return firstByte == 0xCB;
}
public MPDouble unpack(int firstByte, InputStream in) throws IOException {
if (firstByte == 0xCB) {
return new MPDouble(bytes(in, 8).getDouble());
} else {
throw new IllegalArgumentException(String.format("Unexpected first byte 0x%02x", firstByte));
}
}
}
}