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Added methods to read excel properties from excel files
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package com.poiji.annotation; | ||
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import java.lang.annotation.Documented; | ||
import java.lang.annotation.ElementType; | ||
import java.lang.annotation.Retention; | ||
import java.lang.annotation.RetentionPolicy; | ||
import java.lang.annotation.Target; | ||
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/** | ||
* Indicates, that a field contains an excel property (e.g. author, title, custom properties, ...) | ||
* | ||
* @author breucode | ||
*/ | ||
@Retention(RetentionPolicy.RUNTIME) | ||
@Target(ElementType.FIELD) | ||
@Documented | ||
public @interface ExcelProperty { | ||
/** | ||
* If this value is set, the property will be read from property field with this name instead of your field name. | ||
* | ||
* @return the name of the property field to read from | ||
*/ | ||
String propertyName() default ""; | ||
} |
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package com.poiji.bind.mapping; | ||
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import com.poiji.annotation.ExcelProperty; | ||
import com.poiji.util.ReflectUtil; | ||
import org.apache.poi.ooxml.POIXMLProperties; | ||
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import java.lang.reflect.Field; | ||
import java.util.stream.Stream; | ||
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public final class PropertyHandler { | ||
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public static <T> T unmarshal(Class<T> type, POIXMLProperties poixmlProperties) { | ||
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T unmarshalledObject = ReflectUtil.newInstanceOf(type); | ||
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Stream.of(type.getDeclaredFields()) | ||
.filter(field -> field.getAnnotation(ExcelProperty.class) != null) | ||
.forEach(excelPropertyField -> { | ||
String propertyName = getPropertyName(excelPropertyField); | ||
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setPropertyValueOnTarget(propertyName, poixmlProperties, excelPropertyField, unmarshalledObject); | ||
}); | ||
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return unmarshalledObject; | ||
} | ||
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private static String getPropertyName(Field excelPropertyField) { | ||
String propertyName = excelPropertyField.getAnnotation(ExcelProperty.class).propertyName(); | ||
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if (propertyName.isEmpty()) { | ||
propertyName = excelPropertyField.getName(); | ||
} | ||
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return propertyName; | ||
} | ||
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private static void setPropertyValueOnTarget(String propertyName, POIXMLProperties poixmlProperties, Field targetField, Object targetObject) { | ||
switch (propertyName) { | ||
case "category": | ||
ReflectUtil.setFieldData(targetField, poixmlProperties.getCoreProperties().getCategory(), targetObject); | ||
break; | ||
case "contentStatus": | ||
ReflectUtil.setFieldData(targetField, poixmlProperties.getCoreProperties().getContentStatus(), targetObject); | ||
break; | ||
case "created": | ||
ReflectUtil.setFieldData(targetField, poixmlProperties.getCoreProperties().getCreated(), targetObject); | ||
break; | ||
case "creator": | ||
ReflectUtil.setFieldData(targetField, poixmlProperties.getCoreProperties().getCreator(), targetObject); | ||
break; | ||
case "description": | ||
ReflectUtil.setFieldData(targetField, poixmlProperties.getCoreProperties().getDescription(), targetObject); | ||
break; | ||
case "keywords": | ||
ReflectUtil.setFieldData(targetField, poixmlProperties.getCoreProperties().getKeywords(), targetObject); | ||
break; | ||
case "lastPrinted": | ||
ReflectUtil.setFieldData(targetField, poixmlProperties.getCoreProperties().getLastPrinted(), targetObject); | ||
break; | ||
case "modified": | ||
ReflectUtil.setFieldData(targetField, poixmlProperties.getCoreProperties().getModified(), targetObject); | ||
break; | ||
case "subject": | ||
ReflectUtil.setFieldData(targetField, poixmlProperties.getCoreProperties().getSubject(), targetObject); | ||
break; | ||
case "title": | ||
ReflectUtil.setFieldData(targetField, poixmlProperties.getCoreProperties().getTitle(), targetObject); | ||
break; | ||
case "revision": | ||
ReflectUtil.setFieldData(targetField, poixmlProperties.getCoreProperties().getRevision(), targetObject); | ||
break; | ||
default: | ||
ReflectUtil.setFieldData(targetField, poixmlProperties.getCustomProperties().getProperty(propertyName).getLpwstr(), targetObject); | ||
break; | ||
} | ||
} | ||
} |
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