DataType.java
/* Copyright 2002-2022 CS GROUP
* Licensed to CS GROUP (CS) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* CS licenses this file to You 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 org.orekit.gnss.metric.parser;
import java.util.function.Function;
/** Enum containing all low level data types that can be parsed
* to build a message.
* @author Luc Maisonobe
* @since 11.0
*/
enum DataType {
/** 1 bit. */
BIT_1(m -> m.extractBits(1)),
/** 2 bits. */
BIT_2(m -> m.extractBits(2)),
/** 3 bits. */
BIT_3(m -> m.extractBits(3)),
/** 4 bits. */
BIT_4(m -> m.extractBits(4)),
/** 6 bits. */
BIT_6(m -> m.extractBits(6)),
/** 7 bits. */
BIT_7(m -> m.extractBits(7)),
/** 8 bits. */
BIT_8(m -> m.extractBits(8)),
/** 10 bits. */
BIT_10(m -> m.extractBits(10)),
/** 12 bits. */
BIT_12(m -> m.extractBits(12)),
/** 24 bits. */
BIT_24(m -> m.extractBits(24)),
/** 32 bits. */
BIT_32(m -> m.extractBits(32)),
/** 6 bits signed integer. */
INT_6(m -> {
final long msb = 0x20l;
final long signed = (m.extractBits(6) ^ msb) - msb;
return signed == -msb ? null : signed; // return null for the special value meaning no data
}),
/** 8 bits signed integer. */
INT_8(m -> {
final long msb = 0x80l;
final long signed = (m.extractBits(8) ^ msb) - msb;
return signed == -msb ? null : signed; // return null for the special value meaning no data
}),
/** 9 bits signed integer. */
INT_9(m -> {
final long msb = 0x100l;
final long signed = (m.extractBits(9) ^ msb) - msb;
return signed == -msb ? null : signed; // return null for the special value meaning no data
}),
/** 10 bits signed integer. */
INT_10(m -> {
final long msb = 0x200l;
final long signed = (m.extractBits(10) ^ msb) - msb;
return signed == -msb ? null : signed; // return null for the special value meaning no data
}),
/** 11 bits signed integer. */
INT_11(m -> {
final long msb = 0x400l;
final long signed = (m.extractBits(11) ^ msb) - msb;
return signed == -msb ? null : signed; // return null for the special value meaning no data
}),
/** 14 bits signed integer. */
INT_14(m -> {
final long msb = 0x2000l;
final long signed = (m.extractBits(14) ^ msb) - msb;
return signed == -msb ? null : signed; // return null for the special value meaning no data
}),
/** 15 bits signed integer. */
INT_15(m -> {
final long msb = 0x4000l;
final long signed = (m.extractBits(15) ^ msb) - msb;
return signed == -msb ? null : signed; // return null for the special value meaning no data
}),
/** 16 bits signed integer. */
INT_16(m -> {
final long msb = 0x8000l;
final long signed = (m.extractBits(16) ^ msb) - msb;
return signed == -msb ? null : signed; // return null for the special value meaning no data
}),
/** 17 bits signed integer. */
INT_17(m -> {
final long msb = 0x10000l;
final long signed = (m.extractBits(17) ^ msb) - msb;
return signed == -msb ? null : signed; // return null for the special value meaning no data
}),
/** 18 bits signed integer. */
INT_18(m -> {
final long msb = 0x20000l;
final long signed = (m.extractBits(18) ^ msb) - msb;
return signed == -msb ? null : signed; // return null for the special value meaning no data
}),
/** 19 bits signed integer. */
INT_19(m -> {
final long msb = 0x40000l;
final long signed = (m.extractBits(19) ^ msb) - msb;
return signed == -msb ? null : signed; // return null for the special value meaning no data
}),
/** 20 bits signed integer. */
INT_20(m -> {
final long msb = 0x80000l;
final long signed = (m.extractBits(20) ^ msb) - msb;
return signed == -msb ? null : signed; // return null for the special value meaning no data
}),
/** 21 bits signed integer. */
INT_21(m -> {
final long msb = 0x100000l;
final long signed = (m.extractBits(21) ^ msb) - msb;
return signed == -msb ? null : signed; // return null for the special value meaning no data
}),
/** 22 bits signed integer. */
INT_22(m -> {
final long msb = 0x200000l;
final long signed = (m.extractBits(22) ^ msb) - msb;
return signed == -msb ? null : signed; // return null for the special value meaning no data
}),
/** 23 bits signed integer. */
INT_23(m -> {
final long msb = 0x400000l;
final long signed = (m.extractBits(23) ^ msb) - msb;
return signed == -msb ? null : signed; // return null for the special value meaning no data
}),
/** 24 bits signed integer. */
INT_24(m -> {
final long msb = 0x800000l;
final long signed = (m.extractBits(24) ^ msb) - msb;
return signed == -msb ? null : signed; // return null for the special value meaning no data
}),
/** 25 bits signed integer. */
INT_25(m -> {
final long msb = 0x1000000l;
final long signed = (m.extractBits(25) ^ msb) - msb;
return signed == -msb ? null : signed; // return null for the special value meaning no data
}),
/** 26 bits signed integer. */
INT_26(m -> {
final long msb = 0x2000000l;
final long signed = (m.extractBits(26) ^ msb) - msb;
return signed == -msb ? null : signed; // return null for the special value meaning no data
}),
/** 27 bits signed integer. */
INT_27(m -> {
final long msb = 0x4000000l;
final long signed = (m.extractBits(27) ^ msb) - msb;
return signed == -msb ? null : signed; // return null for the special value meaning no data
}),
/** 30 bits signed integer. */
INT_30(m -> {
final long msb = 0x20000000l;
final long signed = (m.extractBits(30) ^ msb) - msb;
return signed == -msb ? null : signed; // return null for the special value meaning no data
}),
/** 31 bits signed integer. */
INT_31(m -> {
final long msb = 0x40000000l;
final long signed = (m.extractBits(31) ^ msb) - msb;
return signed == -msb ? null : signed; // return null for the special value meaning no data
}),
/** 32 bits signed integer. */
INT_32(m -> {
final long msb = 0x80000000l;
final long signed = (m.extractBits(32) ^ msb) - msb;
return signed == -msb ? null : signed; // return null for the special value meaning no data
}),
/** 34 bits signed integer. */
INT_34(m -> {
final long msb = 0x200000000l;
final long signed = (m.extractBits(34) ^ msb) - msb;
return signed == -msb ? null : signed; // return null for the special value meaning no data
}),
/** 35 bits signed integer. */
INT_35(m -> {
final long msb = 0x400000000l;
final long signed = (m.extractBits(35) ^ msb) - msb;
return signed == -msb ? null : signed; // return null for the special value meaning no data
}),
/** 38 bits signed integer. */
INT_38(m -> {
final long msb = 0x2000000000l;
final long signed = (m.extractBits(38) ^ msb) - msb;
return signed == -msb ? null : signed; // return null for the special value meaning no data
}),
/** 2 bits unsigned integer. */
U_INT_2(m -> m.extractBits(2)),
/** 3 bits unsigned integer. */
U_INT_3(m -> m.extractBits(3)),
/** 4 bits unsigned integer. */
U_INT_4(m -> m.extractBits(4)),
/** 5 bits unsigned integer. */
U_INT_5(m -> m.extractBits(5)),
/** 6 bits unsigned integer. */
U_INT_6(m -> m.extractBits(6)),
/** 7 bits unsigned integer. */
U_INT_7(m -> m.extractBits(7)),
/** 8 bits unsigned integer. */
U_INT_8(m -> m.extractBits(8)),
/** 9 bits unsigned integer. */
U_INT_9(m -> m.extractBits(9)),
/** 10 bits unsigned integer. */
U_INT_10(m -> m.extractBits(10)),
/** 11 bits unsigned integer. */
U_INT_11(m -> m.extractBits(11)),
/** 12 bits unsigned integer. */
U_INT_12(m -> m.extractBits(12)),
/** 13 bits unsigned integer. */
U_INT_13(m -> m.extractBits(13)),
/** 14 bits unsigned integer. */
U_INT_14(m -> m.extractBits(14)),
/** 16 bits unsigned integer. */
U_INT_16(m -> m.extractBits(16)),
/** 17 bits unsigned integer. */
U_INT_17(m -> m.extractBits(17)),
/** 18 bits unsigned integer. */
U_INT_18(m -> m.extractBits(18)),
/** 20 bits unsigned integer. */
U_INT_20(m -> m.extractBits(20)),
/** 23 bits unsigned integer. */
U_INT_23(m -> m.extractBits(23)),
/** 24 bits unsigned integer. */
U_INT_24(m -> m.extractBits(24)),
/** 25 bits unsigned integer. */
U_INT_25(m -> m.extractBits(25)),
/** 26 bits unsigned integer. */
U_INT_26(m -> m.extractBits(26)),
/** 27 bits unsigned integer. */
U_INT_27(m -> m.extractBits(27)),
/** 30 bits unsigned integer. */
U_INT_30(m -> m.extractBits(30)),
/** 32 bits unsigned integer. */
U_INT_32(m -> m.extractBits(32)),
/** 35 bits unsigned integer. */
U_INT_35(m -> m.extractBits(35)),
/** 36 bits unsigned integer. */
U_INT_36(m -> m.extractBits(36)),
/** 5 bits sign-magnitude integer. */
INT_S_5(m -> {
final long data = m.extractBits(5);
final long mask = -(data >>> 4); // this mask allows avoiding a conditional below
return (~mask & data) | (mask & (16l - data));
}),
/** 11 bits sign-magnitude integer. */
INT_S_11(m -> {
final long data = m.extractBits(11);
final long mask = -(data >>> 10); // this mask allows avoiding a conditional below
return (~mask & data) | (mask & (1024l - data));
}),
/** 22 bits sign-magnitude integer. */
INT_S_22(m -> {
final long data = m.extractBits(22);
final long mask = -(data >>> 21); // this mask allows avoiding a conditional below
return (~mask & data) | (mask & (2097152l - data));
}),
/** 24 bits sign-magnitude integer. */
INT_S_24(m -> {
final long data = m.extractBits(24);
final long mask = -(data >>> 23); // this mask allows avoiding a conditional below
return (~mask & data) | (mask & (8388608l - data));
}),
/** 27 bits sign-magnitude integer. */
INT_S_27(m -> {
final long data = m.extractBits(27);
final long mask = -(data >>> 26); // this mask allows avoiding a conditional below
return (~mask & data) | (mask & (67108864l - data));
}),
/** 32 bits sign-magnitude integer. */
INT_S_32(m -> {
final long data = m.extractBits(32);
final long mask = -(data >>> 31); // this mask allows avoiding a conditional below
return (~mask & data) | (mask & (2147483648l - data));
});
/** Decoding function. */
private final Function<EncodedMessage, Long> decoder;
/** Simple constructor.
* @param decoder decoding function for the data type
*/
DataType(final Function<EncodedMessage, Long> decoder) {
this.decoder = decoder;
}
/** Decode a piece of data extracted from an encoded message.
* @param message encoded message providing the bits to decode
* @return data decoded as a Long object, or null if data not available
*/
Long decode(final EncodedMessage message) {
return decoder.apply(message);
}
}