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优化实体属性复制

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This commit is contained in:
zhouhao
2017-06-04 17:18:37 +08:00
parent 67d43a7790
commit 82cfaefd1c
3 changed files with 79 additions and 37 deletions
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11
hsweb-commons/hsweb-commons-entity/src/main/java/org/hswebframework/web/commons/entity/TreeSupportEntity.java
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@@ -21,7 +21,6 @@ package org.hswebframework.web.commons.entity;
import org.hswebframework.web.id.IDGenerator;
import org.hswebframwork.utils.RandomUtil;
import org.hswebframwork.utils.StringUtils;
import java.math.BigDecimal;
import java.util.*;
@@ -52,11 +51,6 @@ public interface TreeSupportEntity<PK> extends GenericEntity<PK> {
void setLevel(Integer level);
default void setLevelFromPath() {
if (getPath() != null)
setLevel(getPath().split("-").length);
}
<T extends TreeSupportEntity<PK>> List<T> getChildren();
/**
@@ -85,7 +79,8 @@ public interface TreeSupportEntity<PK> extends GenericEntity<PK> {
List<T> children = parent.getChildren();
if (parent.getPath() == null) {
parent.setPath(RandomUtil.randomChar(4));
parent.setLevelFromPath();
if (parent.getPath() != null)
parent.setLevel(parent.getPath().split("-").length);
}
if (children != null) {
PK pid = parent.getId();
@@ -104,7 +99,7 @@ public interface TreeSupportEntity<PK> extends GenericEntity<PK> {
}
child.setParentId(pid);
child.setPath(parent.getPath() + "-" + RandomUtil.randomChar(4));
child.setLevelFromPath();
child.setLevel(child.getPath().split("-").length);
target.add(child);
expandTree2List(child, target, idGenerator);
}

94
hsweb-commons/hsweb-commons-entity/src/main/java/org/hswebframework/web/commons/entity/factory/MapperEntityFactory.java
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@@ -18,23 +18,27 @@
package org.hswebframework.web.commons.entity.factory;
import org.apache.commons.beanutils.BeanUtils;
import com.alibaba.fastjson.JSON;
import org.hswebframework.web.NotFoundException;
import org.hswebframwork.utils.ClassUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.lang.reflect.Modifier;
import java.util.HashMap;
import java.util.Map;
import java.util.Objects;
import java.util.function.Supplier;
/**
* @author zhouhao
* @since 3.0
*/
@SuppressWarnings("unchecked")
public class MapperEntityFactory implements EntityFactory {
private Map<Class, Mapper> realTypeMapper = new HashMap<>();
private Logger logger = LoggerFactory.getLogger(this.getClass());
private Map<Class, Mapper> realTypeMapper = new HashMap<>();
private Logger logger = LoggerFactory.getLogger(this.getClass());
private Map<String, PropertyCopier> copierCache = new HashMap<>();
public MapperEntityFactory() {
}
@@ -48,45 +52,74 @@ public class MapperEntityFactory implements EntityFactory {
return this;
}
public MapperEntityFactory addCopier(PropertyCopier copier) {
Class source = ClassUtils.getGenericType(copier.getClass(), 0);
Class target = ClassUtils.getGenericType(copier.getClass(), 1);
if (source == null || source == Object.class) {
throw new UnsupportedOperationException("generic type " + source + " not support");
}
if (target == null || target == Object.class) {
throw new UnsupportedOperationException("generic type " + target + " not support");
}
addCopier(source, target, copier);
return this;
}
public <S, T> MapperEntityFactory addCopier(Class<S> source, Class<T> target, PropertyCopier<S, T> copier) {
copierCache.put(getCopierCacheKey(source, target), copier);
return this;
}
private String getCopierCacheKey(Class source, Class target) {
return source.getName().concat("->").concat(target.getName());
}
@Override
public <S, T> T copyProperties(S source, T target) {
Objects.requireNonNull(source);
Objects.requireNonNull(target);
try {
// TODO: 17-3-30 应该设计为可自定义
BeanUtils.copyProperties(target, source);
PropertyCopier<S, T> copier = copierCache.<S, T>get(getCopierCacheKey(source.getClass(), target.getClass()));
if (null != copier) return copier.copyProperties(source, target);
return JSON.parseObject(JSON.toJSONString(source), (Class<T>) target.getClass());
} catch (Exception e) {
logger.warn("copy properties error", e);
}
return target;
}
protected <T> Mapper<T> initCache(Class<T> beanClass) {
Mapper<T> mapper = null;
Class<T> realType = null;
if (!Modifier.isInterface(beanClass.getModifiers()) && !Modifier.isAbstract(beanClass.getModifiers())) {
realType = beanClass;
}
//尝试使用 Simple类，如: package.SimpleUserBean
if (realType == null) {
String simpleClassName = beanClass.getPackage().getName().concat(".Simple").concat(beanClass.getSimpleName());
try {
realType = (Class<T>) Class.forName(simpleClassName);
} catch (ClassNotFoundException e) {
throw new NotFoundException(e.getMessage());
}
}
if (realType != null) {
mapper = new Mapper<>(realType, new DefaultInstanceGetter(realType));
realTypeMapper.put(beanClass, mapper);
}
return mapper;
}
@Override
@SuppressWarnings("unchecked")
public <T> T newInstance(Class<T> beanClass) {
if (beanClass == null) return null;
Mapper<T> mapper = realTypeMapper.get(beanClass);
if (mapper != null) return mapper.getInstanceGetter().get();
synchronized (beanClass) {
mapper = realTypeMapper.get(beanClass);
if (mapper != null) return mapper.getInstanceGetter().get();
Class<T> realType = null;
if (!Modifier.isInterface(beanClass.getModifiers()) && !Modifier.isAbstract(beanClass.getModifiers())) {
realType = beanClass;
}
//尝试使用 Simple类，如: package.SimpleUserBean
if (realType == null) {
String simpleClassName = beanClass.getPackage().getName().concat(".Simple").concat(beanClass.getSimpleName());
try {
realType = (Class<T>) Class.forName(simpleClassName);
} catch (ClassNotFoundException e) {
throw new NotFoundException(e.getMessage());
}
}
if (realType != null) {
mapper = new Mapper<>(realType, new DefaultInstanceGetter(realType));
realTypeMapper.put(beanClass, mapper);
return mapper.getInstanceGetter().get();
}
}
mapper = initCache(beanClass);
if (mapper != null) return mapper.getInstanceGetter().get();
throw new NotFoundException("can't create instance for " + beanClass);
}
@@ -97,7 +130,10 @@ public class MapperEntityFactory implements EntityFactory {
if (null != mapper) {
return mapper.getTarget();
}
return null;
mapper = initCache(beanClass);
if (mapper != null)
return mapper.getTarget();
return beanClass;
}
public static class Mapper<T> {

11
hsweb-commons/hsweb-commons-entity/src/main/java/org/hswebframework/web/commons/entity/factory/PropertyCopier.java Normal file
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@@ -0,0 +1,11 @@
package org.hswebframework.web.commons.entity.factory;
/**
* 属性复制接口,用于自定义属性复制
*
* @author zhouhao
* @since 3.0
*/
public interface PropertyCopier<S, T> {
T copyProperties(S source, T target);
}