| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF 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.apache.ignite.internal.tostring; |
| |
| import java.lang.invoke.VarHandle; |
| import java.lang.reflect.Field; |
| import java.lang.reflect.Modifier; |
| import org.intellij.lang.annotations.MagicConstant; |
| |
| /** |
| * Simple field descriptor containing field name and its order in the class descriptor. |
| */ |
| class FieldDescriptor { |
| /** */ |
| public static final int FIELD_TYPE_OBJECT = 0; |
| |
| /** */ |
| public static final int FIELD_TYPE_BYTE = 1; |
| |
| /** */ |
| public static final int FIELD_TYPE_BOOLEAN = 2; |
| |
| /** */ |
| public static final int FIELD_TYPE_CHAR = 3; |
| |
| /** */ |
| public static final int FIELD_TYPE_SHORT = 4; |
| |
| /** */ |
| public static final int FIELD_TYPE_INT = 5; |
| |
| /** */ |
| public static final int FIELD_TYPE_FLOAT = 6; |
| |
| /** */ |
| public static final int FIELD_TYPE_LONG = 7; |
| |
| /** */ |
| public static final int FIELD_TYPE_DOUBLE = 8; |
| |
| /** Field name. */ |
| private final String name; |
| |
| /** */ |
| private int order = Integer.MAX_VALUE; |
| |
| /** Field VarHandle. */ |
| private final VarHandle varHandle; |
| |
| /** Numeric constant for the field's type. One of {@code FIELD_TYPE_*} constants of current class. */ |
| private final int type; |
| |
| /** Class of the field. Upper bound in case of generic field types. */ |
| private final Class<?> cls; |
| |
| /** |
| * @param field Field descriptor. |
| * @param varHandle Field VarHandle. |
| */ |
| FieldDescriptor(Field field, VarHandle varHandle) { |
| assert (field.getModifiers() & Modifier.STATIC) == 0 : "Static fields are not allowed here: " + field; |
| |
| this.varHandle = varHandle; |
| |
| cls = field.getType(); |
| |
| name = field.getName(); |
| |
| if (!cls.isPrimitive()) |
| type = FIELD_TYPE_OBJECT; |
| else { |
| if (cls == byte.class) |
| type = FIELD_TYPE_BYTE; |
| else if (cls == boolean.class) |
| type = FIELD_TYPE_BOOLEAN; |
| else if (cls == char.class) |
| type = FIELD_TYPE_CHAR; |
| else if (cls == short.class) |
| type = FIELD_TYPE_SHORT; |
| else if (cls == int.class) |
| type = FIELD_TYPE_INT; |
| else if (cls == float.class) |
| type = FIELD_TYPE_FLOAT; |
| else if (cls == long.class) |
| type = FIELD_TYPE_LONG; |
| else if (cls == double.class) |
| type = FIELD_TYPE_DOUBLE; |
| else |
| throw new IllegalArgumentException("Unexpected primitive type: " + cls); |
| } |
| } |
| |
| /** |
| * @return Field order. |
| */ |
| int getOrder() { return order; } |
| |
| /** |
| * @param order Field order. |
| */ |
| void setOrder(int order) { this.order = order; } |
| |
| /** |
| * @return Field VarHandle. |
| */ |
| public VarHandle varHandle() { |
| return varHandle; |
| } |
| |
| /** |
| * @return Numeric constant for the field's type. One of {@code FIELD_TYPE_*} constants of current class. |
| */ |
| @MagicConstant(valuesFromClass = FieldDescriptor.class) |
| public int type() { |
| return type; |
| } |
| |
| /** */ |
| public Class<?> fieldClass() { |
| return cls; |
| } |
| |
| /** |
| * @return Field name. |
| */ |
| String getName() { return name; } |
| } |