com.haulmont.cuba.core.sys.CubaAnnotationsLoader.java Source code

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Here is the source code for com.haulmont.cuba.core.sys.CubaAnnotationsLoader.java

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/*
 * Copyright (c) 2008-2016 Haulmont.
 *
 * 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.haulmont.cuba.core.sys;

import com.haulmont.chile.core.model.Instance;
import com.haulmont.chile.core.model.MetaProperty;
import com.haulmont.chile.core.model.Session;
import com.haulmont.chile.jpa.loader.JPAAnnotationsLoader;
import com.haulmont.cuba.core.entity.*;
import org.apache.commons.lang.ClassUtils;
import org.apache.commons.lang.StringUtils;

import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.util.Arrays;
import java.util.List;

public class CubaAnnotationsLoader extends JPAAnnotationsLoader {

    private static final List<Class> SYSTEM_INTERFACES = Arrays.<Class>asList(Instance.class, Entity.class,
            BaseGenericIdEntity.class, Versioned.class, Creatable.class, Updatable.class, SoftDelete.class,
            HasUuid.class);

    public CubaAnnotationsLoader(Session session) {
        super(session);
    }

    @Override
    protected void onPropertyLoaded(MetaProperty metaProperty, Field field) {
        super.onPropertyLoaded(metaProperty, field);
        boolean system = isPrimaryKey(field) || propertyBelongsTo(field, metaProperty, SYSTEM_INTERFACES);
        if (system)
            metaProperty.getAnnotations().put("system", true);
    }

    private boolean propertyBelongsTo(Field field, MetaProperty metaProperty, List<Class> systemInterfaces) {
        String getterName = "get" + StringUtils.capitalize(metaProperty.getName());

        Class<?> aClass = field.getDeclaringClass();
        //noinspection unchecked
        List<Class> allInterfaces = ClassUtils.getAllInterfaces(aClass);
        for (Class intf : allInterfaces) {
            Method[] methods = intf.getDeclaredMethods();
            for (Method method : methods) {
                if (method.getName().equals(getterName) && method.getParameterTypes().length == 0) {
                    if (systemInterfaces.contains(intf))
                        return true;
                }
            }
        }
        return false;
    }
}