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Finding all annotated classes

Roberto Gentili edited this page Oct 13, 2021 · 10 revisions

Here the solution:

import java.util.Collection;

import org.burningwave.core.assembler.ComponentContainer;
import org.burningwave.core.assembler.ComponentSupplier;
import org.burningwave.core.classes.ClassCriteria;
import org.burningwave.core.classes.ClassHunter;
import org.burningwave.core.classes.ConstructorCriteria;
import org.burningwave.core.classes.FieldCriteria;
import org.burningwave.core.classes.MethodCriteria;
import org.burningwave.core.classes.SearchConfig;
import org.burningwave.core.io.PathHelper;

public class Finder {

    public Collection<Class<?>> find() {
        ComponentSupplier componentSupplier = ComponentContainer.getInstance();
        PathHelper pathHelper = componentSupplier.getPathHelper();
        ClassHunter classHunter = componentSupplier.getClassHunter();

        SearchConfig searchConfig = SearchConfig.forPaths(
            //Here you can add all absolute path you want:
            //both folders, zip and jar will be recursively scanned.
            //For example you can add: "C:\\Users\\user\\.m2"
            //With the line below the search will be executed on runtime class paths
            pathHelper.getMainClassPaths()
        ).by(
            ClassCriteria.create().allThoseThatMatch((cls) -> {
                return cls.getAnnotations() != null && cls.getAnnotations().length > 0;
            }).or().byMembers(
                MethodCriteria.withoutConsideringParentClasses().allThoseThatMatch((method) -> {
                    return method.getAnnotations() != null && method.getAnnotations().length > 0;
                })
            ).or().byMembers(
                FieldCriteria.withoutConsideringParentClasses().allThoseThatMatch((field) -> {
                    return field.getAnnotations() != null && field.getAnnotations().length > 0;
                })
            ).or().byMembers(
                ConstructorCriteria.withoutConsideringParentClasses().allThoseThatMatch((ctor) -> {
                    return ctor.getAnnotations() != null && ctor.getAnnotations().length > 0;
                })
            )
        );

        try (ClassHunter.SearchResult searchResult = classHunter.findBy(searchConfig)) {
    
            //If you need all annotaded methods unconment this
            //searchResult.getMembersFlatMap().values();
    
            return searchResult.getClasses();
        }
    }
}

Examples of use of some components:

BackgroundExecutor
ClassFactory
ClassHunter
ClassPathHunter
CodeExecutor
Constructors
Fields
FileSystemItem
FunctionalInterfaceFactory
IterableObjectHelper
JavaMemoryCompiler
Methods
PathHelper
PropertyAccessor
UnitSourceGenerator

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