jetbrick.web.servlet.utils.RequestIntrospectUtils Maven / Gradle / Ivy
/**
* Copyright 2013-2014 Guoqiang Chen, Shanghai, China. All rights reserved.
*
* Email: [email protected]
* URL: http://subchen.github.io/
*
* 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 jetbrick.web.servlet.utils;
import java.util.*;
import javax.servlet.ServletRequest;
import jetbrick.commons.beans.introspectors.ClassDescriptor;
import jetbrick.commons.beans.introspectors.PropertyDescriptor;
import jetbrick.commons.lang.StringUtils;
import jetbrick.commons.typecast.TypeCastUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public abstract class RequestIntrospectUtils {
protected static final Logger log = LoggerFactory.getLogger(RequestIntrospectUtils.class);
public static void introspect(Object form, ServletRequest request) {
ClassDescriptor desc = ClassDescriptor.lookup(form.getClass());
for (Map.Entry entry : request.getParameterMap().entrySet()) {
String name = entry.getKey();
try {
PropertyDescriptor pd = desc.getPropertyDescriptor(name);
if (pd == null) continue;
String values[] = entry.getValue();
if (values == null) continue;
Class type = pd.getRawType();
if (type.isArray()) {
Class componentType = type.getComponentType();
Object data = TypeCastUtils.convertToArray(values, componentType);
pd.invokeSetter(form, data);
} else if (type == List.class || type == Collection.class) {
Class componentType = pd.getRawComponentType(0);
Object data = TypeCastUtils.convertToList(values, componentType);
pd.invokeSetter(form, data);
} else {
String value = StringUtils.trimToNull(values[0]);
if (value == null) {
if (type.isPrimitive()) {
continue;
} else {
pd.invokeSetter(form, null);
}
} else {
Object data = TypeCastUtils.convert(value, type);
pd.invokeSetter(form, data);
}
}
} catch (Throwable e) {
log.warn("Can't set property for Object.", e);
}
}
}
}