com.github.restup.service.DelegatingResourceService Maven / Gradle / Ivy

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package com.github.restup.service;

import com.github.restup.annotations.operations.*;
import com.github.restup.service.model.request.*;
import com.github.restup.service.model.response.PersistenceResult;
import com.github.restup.service.model.response.ReadResult;
import com.github.restup.service.model.response.ResourceResultConverterFactory;

import java.io.Serializable;
import java.lang.annotation.Annotation;
import java.util.List;

/**
 * A {@link ResourceService} which wraps {@link ResourceServiceOperations} providing typed method signatures for calling annotate methods with lenient signatures.
 *
 * Each wrapped method ensures the appropriate return type that is not necessarily returned by the underlying annotated method.
 */
public class DelegatingResourceService implements ResourceService {

    private final ResourceServiceOperations delegate;

    public DelegatingResourceService(ResourceServiceOperations delegate) {
        this.delegate = delegate;
    }

    @SuppressWarnings("unchecked")
	protected  R result(Class annotation, Object result) {
        return (R) ResourceResultConverterFactory.getInstance()
                .getConverter(annotation)
                .convert(result);
    }

    @Override
    public PersistenceResult create(CreateRequest request) {
        Object result = delegate.create(request);
        return result(CreateResource.class, result);
    }

    @Override
    public PersistenceResult update(UpdateRequest request) {
        Object result = delegate.update(request);
        return result(UpdateResource.class, result);
    }

    @Override
    public PersistenceResult delete(DeleteRequest request) {
        Object result = delegate.delete(request);
        return result(DeleteResource.class, result);
    }

    @Override
    public ReadResult> list(ListRequest request) {
        Object result = delegate.list(request);
        return result(ListResource.class, result);
    }

    @Override
    public ReadResult find(ReadRequest request) {
        Object result = delegate.find(request);
        return result(ReadResource.class, result);
    }

    @Override
    public PersistenceResult>> create(BulkRequest> request) {
        Object result = delegate.bulkCreate(request);
        return result(BulkCreateResource.class, result);
    }

    @Override
    public PersistenceResult>> delete(BulkRequest> request) {
        Object result = delegate.bulkDelete(request);
        return result(BulkDeleteResource.class, result);
    }

    @Override
    public PersistenceResult>> update(BulkRequest> request) {
        Object result = delegate.bulkUpdate(request);
        return result(BulkUpdateResource.class, result);
    }

    @Override
    public PersistenceResult>> deleteByQueryCriteria(DeleteRequest request) {
        Object result = delegate.deleteByQueryCriteria(request);
        return result(DeleteResourceByQuery.class, result);
    }

    @Override
    public PersistenceResult>> updateByQueryCriteria(UpdateRequest request) {
        Object result = delegate.updateByQueryCriteria(request);
        return result(UpdateResourceByQuery.class, result);
    }

}