/*
* Copyright (c) 2008-2017, Hazelcast, Inc. All Rights Reserved.
*
* 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 com.hazelcast.nio.serialization;
import static com.hazelcast.nio.Bits.BOOLEAN_SIZE_IN_BYTES;
import static com.hazelcast.nio.Bits.BYTE_SIZE_IN_BYTES;
import static com.hazelcast.nio.Bits.CHAR_SIZE_IN_BYTES;
import static com.hazelcast.nio.Bits.DOUBLE_SIZE_IN_BYTES;
import static com.hazelcast.nio.Bits.FLOAT_SIZE_IN_BYTES;
import static com.hazelcast.nio.Bits.INT_SIZE_IN_BYTES;
import static com.hazelcast.nio.Bits.LONG_SIZE_IN_BYTES;
import static com.hazelcast.nio.Bits.SHORT_SIZE_IN_BYTES;
import static java.lang.Integer.MAX_VALUE;
public enum FieldType {
// SINGLE-VALUE TYPES
PORTABLE(0, MAX_VALUE),
BYTE(1, BYTE_SIZE_IN_BYTES),
BOOLEAN(2, BOOLEAN_SIZE_IN_BYTES),
CHAR(3, CHAR_SIZE_IN_BYTES),
SHORT(4, SHORT_SIZE_IN_BYTES),
INT(5, INT_SIZE_IN_BYTES),
LONG(6, LONG_SIZE_IN_BYTES),
FLOAT(7, FLOAT_SIZE_IN_BYTES),
DOUBLE(8, DOUBLE_SIZE_IN_BYTES),
UTF(9, MAX_VALUE),
// ARRAY TYPES
PORTABLE_ARRAY(10, MAX_VALUE),
BYTE_ARRAY(11, MAX_VALUE),
BOOLEAN_ARRAY(12, MAX_VALUE),
CHAR_ARRAY(13, MAX_VALUE),
SHORT_ARRAY(14, MAX_VALUE),
INT_ARRAY(15, MAX_VALUE),
LONG_ARRAY(16, MAX_VALUE),
FLOAT_ARRAY(17, MAX_VALUE),
DOUBLE_ARRAY(18, MAX_VALUE),
UTF_ARRAY(19, MAX_VALUE);
private static final FieldType[] ALL = FieldType.values();
private static final int TYPES_COUNT = 10;
private final byte type;
private final int elementSize;
FieldType(int type, int elementSize) {
this.type = (byte) type;
this.elementSize = elementSize;
}
public byte getId() {
return type;
}
public static FieldType get(byte type) {
return ALL[type];
}
public boolean isArrayType() {
return type >= PORTABLE_ARRAY.type;
}
public FieldType getSingleType() {
if (isArrayType()) {
// GOTCHA: Wont' work if you add more types!!!
return get((byte) (getId() % TYPES_COUNT));
}
return this;
}
public boolean hasDefiniteSize() {
return elementSize != MAX_VALUE;
}
/**
* @return size of an element of the type represented by this object
* @throws IllegalArgumentException if type does not have a definite type. Invoke hasDefiniteSize() to check before.
*/
public int getTypeSize() throws IllegalArgumentException {
if (elementSize == MAX_VALUE) {
// unknown size case
throw new IllegalArgumentException("Unsupported type - the size is variable or unknown!");
}
return elementSize;
}
}