| /* |
| * 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.johnzon.mapper.access; |
| |
| import java.lang.annotation.Annotation; |
| import java.lang.reflect.Field; |
| import java.lang.reflect.Modifier; |
| import java.lang.reflect.Type; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.apache.johnzon.mapper.Adapter; |
| import org.apache.johnzon.mapper.JohnzonAny; |
| import org.apache.johnzon.mapper.JohnzonProperty; |
| import org.apache.johnzon.mapper.MapperException; |
| import org.apache.johnzon.mapper.ObjectConverter; |
| |
| public class FieldAccessMode extends BaseAccessMode { |
| public FieldAccessMode(final boolean useConstructor, final boolean acceptHiddenConstructor) { |
| super(useConstructor, acceptHiddenConstructor); |
| } |
| |
| @Override |
| public Map<String, Reader> doFindReaders(final Class<?> clazz) { |
| final Map<String, Reader> readers = new HashMap<String, Reader>(); |
| for (final Map.Entry<String, Field> f : fields(clazz, true).entrySet()) { |
| final String key = f.getKey(); |
| if (isIgnored(key, f.getValue().getDeclaringClass()) || Meta.getAnnotation(f.getValue(), JohnzonAny.class) != null) { |
| continue; |
| } |
| |
| final Field field = f.getValue(); |
| readers.put(extractKey(field, key), new FieldReader(field, field.getGenericType())); |
| } |
| return readers; |
| } |
| |
| @Override |
| public Map<String, Writer> doFindWriters(final Class<?> clazz) { |
| final Map<String, Writer> writers = new HashMap<String, Writer>(); |
| for (final Map.Entry<String, Field> f : fields(clazz, false).entrySet()) { |
| final String key = f.getKey(); |
| if (isIgnored(key, f.getValue().getDeclaringClass())) { |
| continue; |
| } |
| |
| final Field field = f.getValue(); |
| writers.put(extractKey(field, key), new FieldWriter(field, field.getGenericType())); |
| } |
| return writers; |
| } |
| |
| private String extractKey(final Field f, final String key) { |
| final JohnzonProperty property = Meta.getAnnotation(f, JohnzonProperty.class); |
| return property != null ? property.value() : key; |
| } |
| |
| protected boolean isIgnored(final String key, final Class<?> clazz) { |
| return isIgnored(key) || (clazz.getName().startsWith("java.") && (Map.class.isAssignableFrom(clazz) || List.class.isAssignableFrom(clazz))); |
| } |
| |
| protected boolean isIgnored(final String key) { |
| return key.contains("$"); |
| } |
| |
| protected Map<String, Field> fields(final Class<?> clazz, boolean includeFinalFields) { |
| final Map<String, Field> fields = new HashMap<String, Field>(); |
| Class<?> current = clazz; |
| while (current != null && current != Object.class) { |
| for (final Field f : current.getDeclaredFields()) { |
| final String name = f.getName(); |
| final int modifiers = f.getModifiers(); |
| if (fields.containsKey(name) |
| || Modifier.isStatic(modifiers) |
| || Modifier.isTransient(modifiers) |
| || (!includeFinalFields && Modifier.isFinal(modifiers))) { |
| continue; |
| } |
| fields.put(name, f); |
| } |
| current = current.getSuperclass(); |
| } |
| return fields; |
| } |
| |
| public static abstract class FieldDecoratedType implements DecoratedType { |
| protected final Field field; |
| protected final Type type; |
| |
| public FieldDecoratedType(final Field field, final Type type) { |
| this.field = field; |
| if (!field.isAccessible()) { |
| this.field.setAccessible(true); |
| } |
| this.type = type; |
| } |
| |
| @Override |
| public <T extends Annotation> T getClassOrPackageAnnotation(final Class<T> clazz) { |
| return Meta.getClassOrPackageAnnotation(field, clazz); |
| } |
| |
| @Override |
| public Adapter<?, ?> findConverter() { |
| return null; |
| } |
| |
| public Field getField() { |
| return field; |
| } |
| |
| @Override |
| public Type getType() { |
| return type; |
| } |
| |
| @Override |
| public <T extends Annotation> T getAnnotation(final Class<T> clazz) { |
| return Meta.getAnnotation(field, clazz); |
| } |
| |
| @Override |
| public boolean isNillable(final boolean global) { |
| return global; |
| } |
| |
| @Override |
| public String toString() { |
| return "FieldDecoratedType{" + |
| "field=" + field + |
| '}'; |
| } |
| } |
| |
| public static class FieldWriter extends FieldDecoratedType implements Writer { |
| public FieldWriter(final Field field, final Type type) { |
| super(field, type); |
| } |
| |
| @Override |
| public void write(final Object instance, final Object value) { |
| try { |
| field.set(instance, value); |
| } catch (final Exception e) { |
| throw new MapperException("Error setting " + field, e); |
| } |
| } |
| |
| @Override |
| public ObjectConverter.Reader<?> findObjectConverterReader() { |
| return null; |
| } |
| } |
| |
| public static class FieldReader extends FieldDecoratedType implements Reader { |
| public FieldReader(final Field field, final Type type) { |
| super(field, type); |
| } |
| |
| @Override |
| public Object read(final Object instance) { |
| try { |
| return field.get(instance); |
| } catch (final Exception e) { |
| throw new MapperException("Error setting " + field, e); |
| } |
| } |
| |
| @Override |
| public ObjectConverter.Writer<?> findObjectConverterWriter() { |
| return null; |
| } |
| |
| @Override |
| public Type getType() { |
| return type; |
| } |
| } |
| } |