/*
* Copyright 2013-2014 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.data.rest.core.support;
import org.springframework.beans.factory.ObjectFactory;
import org.springframework.core.Ordered;
import org.springframework.core.annotation.Order;
import org.springframework.data.rest.core.mapping.ResourceMappings;
import org.springframework.hateoas.RelProvider;
import org.springframework.util.Assert;
/**
* A {@link RelProvider} based on the {@link ResourceMappings} for the registered repositories.
*
* @author Oliver Gierke
*/
@Order(Ordered.LOWEST_PRECEDENCE + 10)
public class RepositoryRelProvider implements RelProvider {
private final ObjectFactory<ResourceMappings> mappings;
/**
* Creates a new {@link RepositoryRelProvider} for the given {@link ResourceMappings}.
*
* @param mappings must not be {@literal null}.
*/
public RepositoryRelProvider(ObjectFactory<ResourceMappings> mappings) {
Assert.notNull(mappings, "ResourceMappings must not be null!");
this.mappings = mappings;
}
/*
* (non-Javadoc)
* @see org.springframework.hateoas.RelProvider#getCollectionResourceRelFor(java.lang.Class)
*/
@Override
public String getCollectionResourceRelFor(Class<?> type) {
return mappings.getObject().getMetadataFor(type).getRel();
}
/*
* (non-Javadoc)
* @see org.springframework.hateoas.RelProvider#getItemResourceRelFor(java.lang.Class)
*/
@Override
public String getItemResourceRelFor(Class<?> type) {
return mappings.getObject().getMetadataFor(type).getItemResourceRel();
}
/*
* (non-Javadoc)
* @see org.springframework.plugin.core.Plugin#supports(java.lang.Object)
*/
@Override
public boolean supports(Class<?> delimiter) {
return mappings.getObject().hasMappingFor(delimiter);
}
}