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Add SPI to allow customizing which property should uniquely identify an item resource [DATAREST-724] #1095

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spring-projects-issues opened this issue Dec 7, 2015 · 4 comments
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@spring-projects-issues spring-projects-issues commented Dec 7, 2015

Oliver Drotbohm opened DATAREST-724 and commented

Currently an entity's persistent id is used to build canonical URIs for item resources. On the lookup side, that ID is extracted from the URI and used to call repository.findOne(…) effectively.

It would be cool to provide SPI to be able to tweak that and let the user define which property to use on the URI-creation side of things and manually specify the repository call to obtain a unique instance of the entity by that special property value.

As an example, take a User that has a username which shall be used instead of its ID to create URIs like /users/olivergierke and on the reading side of things use an Optional<User> findByUsername(…) query method to lookup the user.

A first iteration may require to implement some custom component for that but we should also think about providing some configuration API using lambdas to declare the functionality something like this:

config.map(UserRepository.class).
  withLookup((repository, username) -> repository.findByUsername(id)).
  andId(User::getUsername);

Issue Links:

  • DATAREST-741 Deserialization of association URIs does not consider EntityLookups

  • DATAREST-791 Repository with EntityLookup not resolving for POST on an Association-Ressource

1 votes, 2 watchers

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@spring-projects-issues spring-projects-issues commented Dec 9, 2015

Oliver Drotbohm commented

This is in place and can now be achieved by providing an implementation of the newly introduced EntityLookup interface as shown in the example here

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@spring-projects-issues spring-projects-issues commented Dec 10, 2015

Oliver Drotbohm commented

The Java 8 configuration dialect is now in place on RepositoryRestConfiguration, too, as can be seen here

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@spring-projects-issues spring-projects-issues commented Jan 5, 2016

Patrick Tomberge commented

Works fine for HTTP-GET, but not for HTTP-DELETE:
Using Long for @Id and a String for the item-identifier.

Result HTTP-DELETE:

org.springframework.core.convert.ConversionFailedException: Failed to convert from type java.lang.String to type java.lang.Long for value 'TESTSTRING'; nested exception is java.lang.NumberFormatException: For input string: "TESTSTRING"
	at org.springframework.core.convert.support.ConversionUtils.invokeConverter(ConversionUtils.java:41) ~[spring-core-4.2.3.RELEASE.jar:4.2.3.RELEASE]
	at org.springframework.core.convert.support.GenericConversionService.convert(GenericConversionService.java:192) ~[spring-core-4.2.3.RELEASE.jar:4.2.3.RELEASE]
	at org.springframework.core.convert.support.GenericConversionService.convert(GenericConversionService.java:176) ~[spring-core-4.2.3.RELEASE.jar:4.2.3.RELEASE]
	at org.springframework.data.repository.support.ReflectionRepositoryInvoker.convertId(ReflectionRepositoryInvoker.java:277) ~[spring-data-commons-1.12.0.BUILD-SNAPSHOT.jar:na]
	at org.springframework.data.repository.support.CrudRepositoryInvoker.invokeDelete(CrudRepositoryInvoker.java:113) ~[spring-data-commons-1.12.0.BUILD-SNAPSHOT.jar:na]
	at org.springframework.data.rest.core.support.UnwrappingRepositoryInvokerFactory$UnwrappingRepositoryInvoker.invokeDelete(UnwrappingRepositoryInvokerFactory.java:196) ~[spring-data-rest-core-2.5.0.BUILD-SNAPSHOT.jar:na]
	at org.springframework.data.rest.webmvc.RepositoryEntityController.deleteItemResource(RepositoryEntityController.java:468) ~[spring-data-rest-webmvc-2.5.0.BUILD-SNAPSHOT.jar:na]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_60]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_60]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_60]
	at java.lang.reflect.Method.invoke(Method.java:497) ~[na:1.8.0_60]
	at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:222) ~[spring-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
	at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:137) ~[spring-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
	at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:110) ~[spring-webmvc-4.2.3.RELEASE.jar:4.2.3.RELEASE]
	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:814) ~[spring-webmvc-4.2.3.RELEASE.jar:4.2.3.RELEASE]
	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:737) ~[spring-webmvc-4.2.3.RELEASE.jar:4.2.3.RELEASE]
	at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85) ~[spring-webmvc-4.2.3.RELEASE.jar:4.2.3.RELEASE]
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:959) ~[spring-webmvc-4.2.3.RELEASE.jar:4.2.3.RELEASE]
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:893) ~[spring-webmvc-4.2.3.RELEASE.jar:4.2.3.RELEASE]
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970) [spring-webmvc-4.2.3.RELEASE.jar:4.2.3.RELEASE]
	at org.springframework.web.servlet.FrameworkServlet.doDelete(FrameworkServlet.java:894) [spring-webmvc-4.2.3.RELEASE.jar:4.2.3.RELEASE]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:654) [tomcat-embed-core-8.0.28.jar:8.0.28]
	at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846) [spring-webmvc-4.2.3.RELEASE.jar:4.2.3.RELEASE]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:729) [tomcat-embed-core-8.0.28.jar:8.0.28]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291) [tomcat-embed-core-8.0.28.jar:8.0.28]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat-embed-core-8.0.28.jar:8.0.28]
	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) [tomcat-embed-websocket-8.0.28.jar:8.0.28]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) [tomcat-embed-core-8.0.28.jar:8.0.28]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat-embed-core-8.0.28.jar:8.0.28]
	at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) [spring-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) [tomcat-embed-core-8.0.28.jar:8.0.28]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat-embed-core-8.0.28.jar:8.0.28]
	at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:87) [spring-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) [tomcat-embed-core-8.0.28.jar:8.0.28]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat-embed-core-8.0.28.jar:8.0.28]
	at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:77) [spring-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) [tomcat-embed-core-8.0.28.jar:8.0.28]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat-embed-core-8.0.28.jar:8.0.28]
	at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:121) [spring-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) [tomcat-embed-core-8.0.28.jar:8.0.28]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat-embed-core-8.0.28.jar:8.0.28]
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:217) [tomcat-embed-core-8.0.28.jar:8.0.28]
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106) [tomcat-embed-core-8.0.28.jar:8.0.28]
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502) [tomcat-embed-core-8.0.28.jar:8.0.28]
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:142) [tomcat-embed-core-8.0.28.jar:8.0.28]
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79) [tomcat-embed-core-8.0.28.jar:8.0.28]
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88) [tomcat-embed-core-8.0.28.jar:8.0.28]
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:518) [tomcat-embed-core-8.0.28.jar:8.0.28]
	at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1091) [tomcat-embed-core-8.0.28.jar:8.0.28]
	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:673) [tomcat-embed-core-8.0.28.jar:8.0.28]
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1500) [tomcat-embed-core-8.0.28.jar:8.0.28]
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1456) [tomcat-embed-core-8.0.28.jar:8.0.28]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_60]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_60]
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-8.0.28.jar:8.0.28]
	at java.lang.Thread.run(Thread.java:745) [na:1.8.0_60]
Caused by: java.lang.NumberFormatException: For input string: "TESTSTRING"
	at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65) ~[na:1.8.0_60]
	at java.lang.Long.parseLong(Long.java:589) ~[na:1.8.0_60]
	at java.lang.Long.valueOf(Long.java:803) ~[na:1.8.0_60]
	at org.springframework.util.NumberUtils.parseNumber(NumberUtils.java:197) ~[spring-core-4.2.3.RELEASE.jar:4.2.3.RELEASE]
	at org.springframework.core.convert.support.StringToNumberConverterFactory$StringToNumber.convert(StringToNumberConverterFactory.java:61) ~[spring-core-4.2.3.RELEASE.jar:4.2.3.RELEASE]
	at org.springframework.core.convert.support.StringToNumberConverterFactory$StringToNumber.convert(StringToNumberConverterFactory.java:48) ~[spring-core-4.2.3.RELEASE.jar:4.2.3.RELEASE]
	at org.springframework.core.convert.support.GenericConversionService$ConverterFactoryAdapter.convert(GenericConversionService.java:425) ~[spring-core-4.2.3.RELEASE.jar:4.2.3.RELEASE]
	at org.springframework.core.convert.support.ConversionUtils.invokeConverter(ConversionUtils.java:35) ~[spring-core-4.2.3.RELEASE.jar:4.2.3.RELEASE]
	... 59 common frames omitted

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@spring-projects-issues spring-projects-issues commented Jan 11, 2016

Oliver Drotbohm commented

I've fixed the URI deserialization to use the RepositoryInvoker infrastructure directly, so that URIs pointing to related resources should be resolved directly during POST/PUT requests. Feel free to give the latest snapshots a spin

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