yakworks.meta.MetaUtils.groovy Maven / Gradle / Ivy
/*
* Copyright 2019 original authors
* SPDX-License-Identifier: Apache-2.0
*/
package yakworks.meta
import java.lang.reflect.Modifier
import groovy.transform.CompileStatic
/**
* A bunch of helper and lookup/finder statics for dealing with domain classes and PersistentEntity.
* Useful methods to find the PersistentEntity and the mapping and meta fields.
*
* @author Joshua Burnett (@basejump)
* @since 6.1
*/
@CompileStatic
class MetaUtils {
// list of props to exclude in isExcluded used for getProperties
private static List PROPERTY_EXCLUDES = [
"class", "declaringClass", "metaClass"
]
/**
* only returns the instance metaProperties
* Get the meta properties for and object but filters out statics and props without a getter
*/
static List getMetaProperties(Class entityClass) {
List metaProps = entityClass.metaClass.properties
List filteredProps = metaProps.findAll { MetaProperty mp ->
!isExcludedProperty(mp)
}
return filteredProps
}
/**
* the default Groovy getProperties returns statics.
* This only returns the instance values
*/
static Map getProperties(Object instance) {
Map props = [:]
for (MetaProperty mp : getMetaProperties(instance.class)) {
props[mp.name] = mp.getProperty(instance)
}
return props
}
/**
* used for getProperties to exclude the utility properties that are on a GormEntity.
*/
static boolean isExcludedProperty(MetaProperty mp) {
return Modifier.isStatic(mp.getModifiers()) ||
PROPERTY_EXCLUDES.contains(mp.getName()) ||
(mp instanceof MetaBeanProperty) && (((MetaBeanProperty) mp).getGetter()) == null
}
}