com.ea.core.base.dto.DynamicDTO.java Source code

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Here is the source code for com.ea.core.base.dto.DynamicDTO.java

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/**
 * Copyright 2014 
 *
 * 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.ea.core.base.dto;

import java.util.Iterator;
import java.util.Map;
import java.util.Set;
import java.util.TreeMap;

import jodd.typeconverter.TypeConverterManager;

import org.springframework.cglib.beans.BeanGenerator;
import org.springframework.cglib.beans.BeanMap;

import com.ea.core.base.model.BaseModel;
import com.ea.core.typeconverter.impl.StringConverter;

public class DynamicDTO extends BaseModel {
    /**
     * 
     */
    private static final long serialVersionUID = -599263703870892867L;

    private BeanGenerator generator;
    private BeanMap beanMap;
    private Map<String, Object> valueMap;
    private Object beanObject;

    public DynamicDTO() {
        generator = new BeanGenerator();
        valueMap = new TreeMap<String, Object>();
    }

    public DynamicDTO(Map<String, Object> map) {
        generator = new BeanGenerator();
        /*Kryo?Map?HashMap?NullPointExceptionTreeMap*/
        /*?DynamicDTO?MapTreeMap*/
        valueMap = new TreeMap<String, Object>();
        Iterator<String> keys = map.keySet().iterator();
        String key = null;
        while (keys.hasNext()) {
            key = keys.next();
            this.setValue(key, map.get(key));
        }
        try {
            generateBean();
        } catch (Exception e) {
            throw new RuntimeException("?Bean?");
        }
    }

    public DynamicDTO(BaseModel model) {
        generator = new BeanGenerator();
        valueMap = new TreeMap<String, Object>();
        beanObject = model;
        beanMap = BeanMap.create(model);
        valueMap.putAll(beanMap);
    }

    /**
     * SOAP?JavaBeanBaseDTOBasePO
     * @param obj
     */
    public DynamicDTO(Object obj) {
        generator = new BeanGenerator();
        valueMap = new TreeMap<String, Object>();
        beanObject = obj;
        beanMap = BeanMap.create(obj);
        valueMap.putAll(beanMap);
    }

    /**
     * ?MapModel?DynamicDTO?setValue?DTO
     * 
     * @param propName
     * @param value
     */
    public void setValue(String propName, Object value) {
        setValue(propName, null, value);
    }

    public void setValue(String propName, Class<? extends Object> className, Object value) {
        if (beanMap == null) {
            if (className == null) {
                if (value == null) {
                    return;
                } else {
                    generator.addProperty(propName, value.getClass());
                }
            } else {
                generator.addProperty(propName, className);
            }

            this.valueMap.put(propName, value);
        } else {
            beanMap.put(propName, value);
        }
    }

    public Object getValue(String property) {
        if (beanMap == null) {
            return this.valueMap.get(property);
        } else {
            return this.beanMap.get(property);
        }
    }

    /**
     * DynamicDTO
     * 
     * @return
     */
    @SuppressWarnings("unchecked")
    public Set<String> properties() {
        if (beanMap == null) {
            return this.valueMap.keySet();
        } else {
            return this.beanMap.keySet();
        }
    }

    /**
     * DynamicDTOClass
     * 
     * @param property
     * @return
     */
    public Class getPropertyType(String property) {
        if (beanMap == null) {
            return this.valueMap.get(property).getClass();
        } else {
            return this.beanMap.getPropertyType(property);
        }
    }

    public Object getBean() {
        if (beanObject == null) {
            try {
                generateBean();
            } catch (Exception e) {
                return null;
            }
        }
        return beanObject;
    }

    public Object getCloneBean() {
        try {
            Object tmpObject = generator.create();
            BeanMap tmpMap = BeanMap.create(tmpObject);
            tmpMap.putAll(valueMap);
            return tmpObject;
        } catch (Exception e) {
            return null;
        }
    }

    public Map<String, Object> getMap() {
        return valueMap;
    }

    /**
     * ?DynamicDTOModel
     * 
     * @param target
     */
    @SuppressWarnings("unchecked")
    public void convert(BaseModel target) {
        BeanMap tmp = BeanMap.create(target);
        Iterator<String> keys = tmp.keySet().iterator();
        String key = null;
        while (keys.hasNext()) {
            key = keys.next();
            if (beanMap.containsKey(key)) {
                StringConverter converter = new StringConverter();
                TypeConverterManager.register(String.class, converter);
                tmp.put(key, TypeConverterManager.convertType(beanMap.get(key), tmp.getPropertyType(key)));
            }
        }
    }

    public void reset() {
        valueMap.clear();
        beanMap.clear();
        beanMap = null;
        beanObject = null;
    }

    public void destroy() {
        beanMap.clear();
        valueMap.clear();
        valueMap = null;
        beanMap = null;
        generator = null;
        beanObject = null;
    }

    private void generateBean() throws Exception {
        beanObject = generator.create();
        beanMap = BeanMap.create(beanObject);
        beanMap.putAll(valueMap);
    }

}