Example usage for org.springframework.data.rest.core.config ProjectionDefinitionConfiguration getProjectionsFor

Introduction

In this page you can find the example usage for org.springframework.data.rest.core.config ProjectionDefinitionConfiguration getProjectionsFor.

Prototype

public Map<String, Class<?>> getProjectionsFor(Class<?> sourceType) 

Source Link

Document

Returns all projections registered for the given source type.

Usage

From source file:org.springframework.data.rest.webmvc.alps.RootResourceInformationToAlpsDescriptorConverter.java

/**
 * Builds a descriptor for the projection parameter of the given resource.
 * //from w  w  w.j av  a  2s  .  c  o  m
 * @param metadata
 * @return
 */
private Descriptor buildProjectionDescriptor(ResourceMetadata metadata) {

    ProjectionDefinitionConfiguration projectionConfiguration = configuration.getProjectionConfiguration();
    String projectionParameterName = projectionConfiguration.getParameterName();

    Map<String, Class<?>> projections = projectionConfiguration.getProjectionsFor(metadata.getDomainType());
    List<Descriptor> projectionDescriptors = new ArrayList<Descriptor>(projections.size());

    for (Entry<String, Class<?>> projection : projections.entrySet()) {

        Class<?> type = projection.getValue();
        String key = String.format("%s.%s.%s", metadata.getRel(), projectionParameterName, projection.getKey());
        ResourceDescription fallback = SimpleResourceDescription.defaultFor(key);
        AnnotationBasedResourceDescription projectionDescription = new AnnotationBasedResourceDescription(type,
                fallback);

        projectionDescriptors.add(//
                descriptor().//
                        type(Type.SEMANTIC).//
                        name(projection.getKey()).//
                        doc(getDocFor(projectionDescription)).//
                        descriptors(createJacksonDescriptor(projection.getKey(), type)).//
                        build());
    }

    return descriptor().//
            type(Type.SEMANTIC).//
            name(projectionParameterName).//
            doc(getDocFor(SimpleResourceDescription.defaultFor(projectionParameterName))).//
            descriptors(projectionDescriptors).build();
}

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