[hibernate-issues] [JIRA] (HSEARCH-3325) Search 6 groundwork - Restore support for full-text filters

[Waldemar Kłaczyński (JIRA)]

Waldemar Kłaczyński ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=557058%3A77e50cac-bda3-4af4-9bb3-6461f4d10eea ) *commented* on HSEARCH-3325 ( https://hibernate.atlassian.net/browse/HSEARCH-3325?atlOrigin=eyJpIjoiMGUzYzc2NjdiNjgxNDQyMDk0ZTc2NmViYjU0NTRjYjkiLCJwIjoiaiJ9 )

Re: Search 6 groundwork - Restore support for full-text filters ( https://hibernate.atlassian.net/browse/HSEARCH-3325?atlOrigin=eyJpIjoiMGUzYzc2NjdiNjgxNDQyMDk0ZTc2NmViYjU0NTRjYjkiLCJwIjoiaiJ9 )

Another interesting solution for filters built in this way. It is possible to define a filter in a set with a binding field.

public class PermissionsBinder implements TypeBinder {

   private String fieldName = "permissions" ;
   private String operationName = "read" ;

   public PermissionsBinder fieldName( String fieldName) {
       this.fieldName = fieldName;
       return this ;
   }

   public PermissionsBinder operationName( String operationName) {
       this.operationName = operationName;
       return this ;
   }

   @Override
   public void bind(TypeBindingContext context) {
       context.getDependencies().useRootOnly();

       IndexFieldReference< String > permissionsField = context.getIndexSchemaElement()
               .field( this.fieldName, f -> f.asString().analyzer( "permissions" ))
               .toReference();

       context.getIndexSchemaElement().filter( "is-permission" , new Filter())
               .param( "operation" , operationName)
               .param( "field" , this.fieldName)
               .toReference();

       context.setBridge( new Bridge(
               permissionsField
       ));
   }

   private static class Bridge implements TypeBridge {

       private final IndexFieldReference< String > permissionsField;

       protected IdentityStoreResolver getIdentityService() {
           IdentityStoreResolver isr = ServiceLocator.getService(IdentityStoreResolver.class, IdentityStoreResolver.JNDI_NAME);
           return isr;
       }

       private Bridge(IndexFieldReference< String > permissionsField) {
           this.permissionsField = permissionsField;
       }

       @Override
       public void write(DocumentElement target, Object bridgedElement, TypeBridgeWriteContext context) {
           StringBuilder brules = new StringBuilder();

           IdentityStoreResolver isr = getIdentityService();
           PermissionManager pm = isr.getPermissionManager();

           List<Permission> permissions = pm.listPermissions(bridgedElement);
           for (Permission permission : permissions) {
               IdentityType assignee = permission.getAssignee();

               if (assignee instanceof Group) {
                   String [] roles = permission.getRoles();
                   if (roles == null || roles.length < 1) {
                       roles = new String []{ "*" };
                   }
                   for ( String role : roles) {
                       brules.append(permission.getOperation()).append( ":" );
                       brules.append(permission.getContext()).append( ":" );
                       brules.append(permission.getPath()).append( ":" );
                       brules.append(role);
                       brules.append( "\n" );
                   }
               } else {
                   brules.append(permission.getOperation()).append( ":" );
                   brules.append(permission.getContext()).append( ":" );
                   brules.append(permission.getPath());
                   brules.append( "\n" );
               }
           }

           target.addValue( this.permissionsField, brules.toString());
       }
   }

   private static class Filter implements FilterFactory {

       @Override
       public SearchPredicate create(FilterFactoryContext ctx) {
           SearchPredicate filter;
           SearchPredicateFactory predicate = ctx.predicate();

           Account user = ctx.param( "user" );
           String fieldPath = ctx.resolvePath(ctx.param( "field" ));
           String operation = ctx.param( "operation" );

           if (operation == null ) {
               operation = "read" ;
           }

           PermissionQuery query = new PermissionQuery(fieldPath, operation, user);
           filter = predicate.extension(LuceneExtension.get())
                   .fromLuceneQuery(query)
                   .toPredicate();

           return filter;
       }

   }

}

( https://hibernate.atlassian.net/browse/HSEARCH-3325#add-comment?atlOrigin=eyJpIjoiMGUzYzc2NjdiNjgxNDQyMDk0ZTc2NmViYjU0NTRjYjkiLCJwIjoiaiJ9 ) Add Comment ( https://hibernate.atlassian.net/browse/HSEARCH-3325#add-comment?atlOrigin=eyJpIjoiMGUzYzc2NjdiNjgxNDQyMDk0ZTc2NmViYjU0NTRjYjkiLCJwIjoiaiJ9 )

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