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DATAREST-155 - Introduce API to alter exposed backend ids.

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Introduced BackendIdConverter SPI to be able to register custom components that will be used during URI construction and URI parsing to determine the actual backend identifier.

To register a custom BackendIdConverter simply declare a bean definition for it in the ApplicationContext. The Spring Data REST URI creation infrastructure (RepositoryEntityLinks in particular) will pick it up transparently.
This commit is contained in:
Oliver Gierke
2014-03-11 17:41:17 +01:00
parent 0a3738782d
commit 572690b888
19 changed files with 529 additions and 163 deletions
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25
spring-data-rest-core/src/main/java/org/springframework/data/rest/core/util/UriUtils.java
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package org.springframework.data.rest.core.util;
import java.net.URI;
import org.springframework.web.util.UriComponentsBuilder;
/**
* Helper methods for dealing with URIs.
*
* @author Jon Brisbin
*/
public abstract class UriUtils {
/**
* Create a new {@link URI} out of the components.
*
* @param baseUri The base URI these path segments are relative to.
* @param pathSegments The path segments to add to the given base URI.
* @return A new URI built from the given base URI and additional path segments.
*/
public static URI buildUri(URI baseUri, String... pathSegments) {
return UriComponentsBuilder.fromUri(baseUri).pathSegment(pathSegments).build().toUri();
}
}

44
spring-data-rest-core/src/test/java/org/springframework/data/rest/core/util/UriUtilsUnitTests.java
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/*
* Copyright 2012-2013 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.util;
import static org.hamcrest.MatcherAssert.*;
import static org.hamcrest.Matchers.*;
import java.net.URI;
import org.junit.Test;
/**
* Tests to verify that {@link UriUtils} can manipulate {@link URI}s.
*
* @author Jon Brisbin
*/
public class UriUtilsUnitTests {
private static final String BASE_URI_STR = "http://localhost:8080/data";
private static final URI BASE_URI = URI.create(BASE_URI_STR);
private static final String PERSON_2LVL_STR = BASE_URI_STR + "/person/1";
private static final URI PERSON_2LVL_URI = URI.create(PERSON_2LVL_STR);
@Test
public void shouldBuildURIFromPathSegments() throws Exception {
URI uri = UriUtils.buildUri(BASE_URI, "person", "1");
assertThat(uri, is(PERSON_2LVL_URI));
}
}