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FieldDescriptor.java
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FieldDescriptor.java
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/*
* Copyright 2015 Odnoklassniki Ltd, Mail.Ru Group
*
* 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 one.nio.serial;
import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectOutput;
import java.lang.reflect.Field;
public class FieldDescriptor {
private String nameDescriptor;
private TypeDescriptor typeDescriptor;
private Field ownField;
private Field parentField;
private int index;
// Ad-hoc linked list
public FieldDescriptor next;
FieldDescriptor(String nameDescriptor, TypeDescriptor typeDescriptor) {
this.nameDescriptor = nameDescriptor;
this.typeDescriptor = typeDescriptor;
}
FieldDescriptor(Field ownField, Field parentField, int index) {
Renamed renamed = ownField.getAnnotation(Renamed.class);
this.nameDescriptor = renamed == null ? ownField.getName() : ownField.getName() + '|' + renamed.from();
this.typeDescriptor = new TypeDescriptor(ownField.getType());
assignField(ownField, parentField, index);
}
@Override
public String toString() {
return nameDescriptor + ':' + typeDescriptor.toString();
}
public String name() {
return nameDescriptor;
}
public TypeDescriptor type() {
return typeDescriptor;
}
public Field ownField() {
return ownField;
}
public Field parentField() {
return parentField;
}
public int index() {
return index;
}
public boolean is(String nameDescriptor, String typeDescriptor) {
return nameDescriptor.equals(this.nameDescriptor) && typeDescriptor.equals(this.typeDescriptor.toString());
}
public void assignField(Field ownField, Field parentField, int index) {
this.ownField = ownField;
this.parentField = parentField;
this.index = index;
}
public static FieldDescriptor read(ObjectInput in) throws IOException {
String nameDescriptor = in.readUTF();
TypeDescriptor typeDescriptor = TypeDescriptor.read(in);
return new FieldDescriptor(nameDescriptor, typeDescriptor);
}
public void write(ObjectOutput out) throws IOException {
out.writeUTF(nameDescriptor);
typeDescriptor.write(out);
}
}