{"id":19251,"date":"2013-11-28T10:00:42","date_gmt":"2013-11-28T08:00:42","guid":{"rendered":"http:\/\/www.javacodegeeks.com\/?p=19251"},"modified":"2013-11-28T07:57:59","modified_gmt":"2013-11-28T05:57:59","slug":"auditing-entities-in-spring-data-mongodb-2","status":"publish","type":"post","link":"https:\/\/www.javacodegeeks.com\/2013\/11\/auditing-entities-in-spring-data-mongodb-2.html","title":{"rendered":"Auditing Entities in Spring Data MongoDB"},"content":{"rendered":"<p><strong>Spring Data MongoDB 1.2.0<\/strong> silently introduced new feature: support for basic <strong>auditing<\/strong>. Because you will not find too much about it in official reference in this post I will show what benefits does it bring, how to configure Spring for auditing and how to annotate your documents to make them auditable <strong>Auditing<\/strong> let you declaratively tell Spring to store:<\/p>\n<ul>\n<li>date when document has been created: <a href=\"http:\/\/static.springsource.org\/spring-data\/commons\/docs\/1.5.1.RELEASE\/api\/org\/springframework\/data\/annotation\/CreatedDate.html\">@CreatedDate<\/a><\/li>\n<li>date when document has been updated last time: <a href=\"http:\/\/static.springsource.org\/spring-data\/commons\/docs\/1.5.1.RELEASE\/api\/org\/springframework\/data\/annotation\/LastModifiedDate.html\">@LastModifiedDate<\/a><\/li>\n<li>user who has created document: <a href=\"http:\/\/static.springsource.org\/spring-data\/commons\/docs\/1.5.1.RELEASE\/api\/org\/springframework\/data\/annotation\/CreatedBy.html\">@CreatedBy<\/a><\/li>\n<li>user who has done most recent update: <a href=\"http:\/\/static.springsource.org\/spring-data\/commons\/docs\/1.5.1.RELEASE\/api\/org\/springframework\/data\/annotation\/LastModifiedBy.html\">@LastModifiedBy<\/a><\/li>\n<li>current document version: <a href=\"http:\/\/static.springsource.org\/spring-data\/commons\/docs\/1.5.1.RELEASE\/api\/org\/springframework\/data\/annotation\/Version.html\">@Version<\/a><\/li>\n<\/ul>\n<h2>Configuration<\/h2>\n<p>First of all Maven dependencies to latest Spring Data MongoDB and Spring Data Commons. Additionally in order to use date-related audit annotations we need to add <strong>joda-time<\/strong> to classpath.<div style=\"display:inline-block; margin: 15px 0;\"> <div id=\"adngin-JavaCodeGeeks_incontent_video-0\" style=\"display:inline-block;\"><\/div> <\/div><\/p>\n<pre class=\" brush:xml\">&lt;dependency&gt;\r\n    &lt;groupId&gt;org.springframework.data&lt;\/groupId&gt;\r\n    &lt;artifactId&gt;spring-data-mongodb&lt;\/artifactId&gt;\r\n    &lt;version&gt;1.2.1.RELEASE&lt;\/version&gt;\r\n&lt;\/dependency&gt;\r\n\r\n&lt;dependency&gt;\r\n    &lt;groupId&gt;org.springframework.data&lt;\/groupId&gt;\r\n    &lt;artifactId&gt;spring-data-commons&lt;\/artifactId&gt;\r\n    &lt;version&gt;1.5.1.RELEASE&lt;\/version&gt;\r\n&lt;\/dependency&gt;\r\n\r\n&lt;dependency&gt;\r\n    &lt;groupId&gt;joda-time&lt;\/groupId&gt;\r\n    &lt;artifactId&gt;joda-time&lt;\/artifactId&gt;\r\n    &lt;version&gt;2.2&lt;\/version&gt;\r\n&lt;\/dependency&gt;<\/pre>\n<p>In order to enable auditing we need to add <strong>&lt;mongo:auditing\/&gt;<\/strong> to Spring configuration. Currently there is no way to configure it through Java Config.<\/p>\n<pre class=\" brush:xml\">&lt;mongo:auditing \/&gt;\r\n\r\n&lt;mongo:mongo id=\"mongo\" \/&gt;\r\n\r\n&lt;bean class=\"org.springframework.data.mongodb.core.MongoTemplate\"&gt;\r\n    &lt;constructor-arg name=\"mongo\" ref=\"mongo\" \/&gt;\r\n    &lt;constructor-arg name=\"databaseName\" value=\"blog-tests\" \/&gt;\r\n&lt;\/bean&gt;<\/pre>\n<h2>Usage<\/h2>\n<p>Configuration above provides us way for auditing that includes versioning and timestamps. Example document will look like:<\/p>\n<pre class=\" brush:java\">@Document\r\npublic class Item {\r\n    @Id\r\n    private String id;\r\n\r\n    ...\r\n\r\n    @Version\r\n    private Long version;\r\n    @CreatedDate\r\n    private DateTime createdAt;\r\n    @LastModifiedDate\r\n    private DateTime lastModified;\r\n\r\n    ...\r\n}<\/pre>\n<p>Now you can save document using <strong>MongoTemplate<\/strong> or your repository and all annotated fields are automagically set.<\/p>\n<p>As you have probably noticed I did not use here user related annotations <strong>@CreatedBy<\/strong> and <strong>@LastModifiedBy<\/strong>. In order to use them we need to tell <strong>Spring<\/strong> who is a current user.<\/p>\n<p>First add user related fields to your audited class:<\/p>\n<pre class=\" brush:java\">@CreatedBy\r\nprivate String createdBy;\r\n\r\n@LastModifiedBy\r\nprivate String lastModifiedBy;<\/pre>\n<p>Then create your implementation of <a href=\"http:\/\/static.springsource.org\/spring-data\/commons\/docs\/1.5.1.RELEASE\/api\/org\/springframework\/data\/domain\/AuditorAware.html\">AuditorAware<\/a> that will obtain current user (probably from session or Spring Security context \u2013 depends on your application):<\/p>\n<pre class=\" brush:java\">public class MyAppAuditor implements AuditorAware&lt;String&gt; {\r\n\r\n    @Override\r\n    public String getCurrentAuditor() {\r\n        \/\/ get your user name here\r\n        return \"John Doe\";\r\n    }\r\n}<\/pre>\n<p>Last thing is to tell Spring Data MongoDB about this auditor aware class by little modification in Mongo configuration:<\/p>\n<pre class=\" brush:xml\">&lt;mongo:auditing auditor-aware-ref=\"auditor\" \/&gt;\r\n&lt;bean id=\"auditor\" class=\"pl.maciejwalkowiak.blog.MyAppAuditor\"\/&gt;<\/pre>\n<p>&nbsp;<\/p>\n<div style=\"border: 1px solid #D8D8D8; background: #FAFAFA; width: 100%; padding-left: 5px;\"><b><i>Reference: <\/i><\/b><a href=\"http:\/\/maciejwalkowiak.pl\/blog\/2013\/05\/24\/auditing-entities-in-spring-data-mongodb\/\">Auditing Entities in Spring Data MongoDB<\/a> from our <a href=\"http:\/\/www.javacodegeeks.com\/jcg\">JCG partner<\/a> Maciej Walkowiak at the <a href=\"http:\/\/maciejwalkowiak.pl\/blog\/\">Software Development Journey<\/a> blog.<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Spring Data MongoDB 1.2.0 silently introduced new feature: support for basic auditing. Because you will not find too much about it in official reference in this post I will show what benefits does it bring, how to configure Spring for auditing and how to annotate your documents to make them auditable Auditing let you declaratively &hellip;<\/p>\n","protected":false},"author":245,"featured_media":187,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[112,30,321],"class_list":["post-19251","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-enterprise-java","tag-mongodb","tag-spring","tag-spring-data"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Auditing Entities in Spring Data MongoDB<\/title>\n<meta name=\"description\" content=\"Spring Data MongoDB 1.2.0 silently introduced new feature: support for basic auditing. 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