com.wavemaker.runtime.data.export.SimpleFieldValueProvider Maven / Gradle / Ivy
/*******************************************************************************
* Copyright (C) 2022-2023 WaveMaker, Inc.
*
* 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.wavemaker.runtime.data.export;
import java.beans.PropertyDescriptor;
import org.springframework.beans.BeanUtils;
import com.wavemaker.commons.MessageResource;
import com.wavemaker.commons.WMRuntimeException;
import com.wavemaker.runtime.data.util.JavaTypeUtils;
public class SimpleFieldValueProvider implements FieldValueProvider {
private final String fieldName;
private final Class dataClass;
public SimpleFieldValueProvider(String fieldName, Class dataClass) {
this.fieldName = fieldName;
this.dataClass = dataClass;
}
@Override
public Object getValue(Object object) {
String[] nestedFields = fieldName.split("\\.");
Object value = null;
Object nestedRowData = object;
Class currentClass = this.dataClass;
try {
for (String name : nestedFields) {
PropertyDescriptor propertyDescriptor = BeanUtils.getPropertyDescriptor(currentClass, name);
value = (nestedRowData == null) ? null : propertyDescriptor.getReadMethod().invoke(nestedRowData);
if (value == null) {
break;
}
nestedRowData = value;
Class propertyType = propertyDescriptor.getPropertyType();
if (!JavaTypeUtils.isKnownType(propertyType)) {
currentClass = propertyType;
}
}
return value;
} catch (Exception e) {
throw new WMRuntimeException(MessageResource.create("com.wavemaker.runtime.invalid.field.name"), e);
}
}
}