Package org.gcube.informationsystem.resourceregistry.queries.templates

Class QueryTemplateRepository

java.lang.Object

org.gcube.informationsystem.resourceregistry.queries.templates.QueryTemplateRepository

public class QueryTemplateRepository
extends Object

Single data-access layer for QueryTemplate entities.

This is the sole point of contact between QueryTemplatePolicyEnforcementPoint (DB-agnostic by design) and QueryTemplateManagement (the OrientDB-specific implementation, isolated under persistence.orientdb). Mirrors the same layering already established for the Context collection (ContextRepository / ContextManagement): when the persistence backend changes (e.g. to PostgreSQL), only this class needs to be rewritten against the new backend's management/DAO class — QueryTemplatePolicyEnforcementPoint and every REST-facing caller remain untouched.

This class has zero auth logic: role/visibility decisions are made exclusively by QueryTemplatePolicyEnforcementPoint and passed in as plain parameters (already-resolved limit/offset/MetadataPolicy).

Author:

Luca Frosini (ISTI - CNR)

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static final record	QueryTemplateRepository.QueryTemplateQueryResult	Result payload and shape produced by a Query Template JSON query.

Constructor Summary

Constructors

Constructor	Description
QueryTemplateRepository()

Method Summary

Modifier and Type	Method	Description
QueryTemplateCreationResult	createOrUpdate(String queryTemplateName, String json, org.gcube.informationsystem.resourceregistry.api.rest.MetadataPolicy metadataPolicy)	Creates or updates a Query Template.
void	delete(String queryTemplateName)	Deletes the Query Template with the specified name.
String	list(int limit, int offset, org.gcube.informationsystem.resourceregistry.api.rest.MetadataPolicy metadataPolicy)	Lists all Query Templates.
String	list(int limit, int offset, org.gcube.informationsystem.resourceregistry.api.rest.MetadataPolicy metadataPolicy, boolean maskMetadata)	Lists all Query Templates with the requested metadata identity policy.
String	query(String jsonQuery, int limit, int offset, org.gcube.informationsystem.resourceregistry.api.rest.MetadataPolicy metadataPolicy)	Executes a JSON query against the Query Template collection, returning matching Query Template definitions (not their execution results).
QueryTemplateRepository.QueryTemplateQueryResult	queryWithDetails(String jsonQuery, int limit, int offset, org.gcube.informationsystem.resourceregistry.api.rest.MetadataPolicy metadataPolicy, boolean maskMetadata)	Executes a Query Template JSON query and reports whether its result is projection-based.
String	read(String queryTemplateName, org.gcube.informationsystem.resourceregistry.api.rest.MetadataPolicy metadataPolicy)	Reads a single Query Template by name.
String	read(String queryTemplateName, org.gcube.informationsystem.resourceregistry.api.rest.MetadataPolicy metadataPolicy, boolean maskMetadata)	Reads a single Query Template with the requested metadata identity policy.
TemplateExecutionResult	run(String queryTemplateName, String params, int limit, int offset, boolean polymorphic, boolean hierarchical, boolean activeOnlyHierarchical, org.gcube.informationsystem.resourceregistry.api.rest.ContextsPolicy contextsPolicy, org.gcube.informationsystem.resourceregistry.api.rest.MetadataPolicy metadataPolicy, boolean maskMetadata, MembershipView membershipView)	Executes the Query Template with the specified name and parameters.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

QueryTemplateRepository

public QueryTemplateRepository()

Method Details

list

public String list(int limit,
 int offset,
 org.gcube.informationsystem.resourceregistry.api.rest.MetadataPolicy metadataPolicy)
            throws org.gcube.informationsystem.resourceregistry.api.exceptions.ResourceRegistryException

Lists all Query Templates.

Parameters:

limit - the maximum number of results to return

offset - the number of results to skip

metadataPolicy - the metadata inclusion policy to apply

Returns:

JSON array string of Query Template definitions

Throws:

org.gcube.informationsystem.resourceregistry.api.exceptions.ResourceRegistryException - on database or read failure

list

public String list(int limit,
 int offset,
 org.gcube.informationsystem.resourceregistry.api.rest.MetadataPolicy metadataPolicy,
 boolean maskMetadata)
            throws org.gcube.informationsystem.resourceregistry.api.exceptions.ResourceRegistryException

Lists all Query Templates with the requested metadata identity policy.

Parameters:

limit - the maximum number of results to return

offset - the number of results to skip

metadataPolicy - the metadata inclusion policy to apply

maskMetadata - whether to redact sensitive metadata identity fields

Returns:

JSON array string of Query Template definitions

Throws:

org.gcube.informationsystem.resourceregistry.api.exceptions.ResourceRegistryException - on database or read failure

query

public String query(String jsonQuery,
 int limit,
 int offset,
 org.gcube.informationsystem.resourceregistry.api.rest.MetadataPolicy metadataPolicy)
             throws org.gcube.informationsystem.resourceregistry.api.exceptions.queries.InvalidQueryException,
org.gcube.informationsystem.resourceregistry.api.exceptions.ResourceRegistryException

Executes a JSON query against the Query Template collection, returning matching Query Template definitions (not their execution results).

Parameters:

jsonQuery - the JSON query payload describing the Query Template search criteria

limit - the maximum number of results to return

offset - the number of results to skip

metadataPolicy - the metadata inclusion policy to apply

Returns:

JSON array string of matching Query Template definitions

Throws:

org.gcube.informationsystem.resourceregistry.api.exceptions.queries.InvalidQueryException - if the query is invalid or syntactically incorrect

org.gcube.informationsystem.resourceregistry.api.exceptions.ResourceRegistryException - on database or processing failure

queryWithDetails

public QueryTemplateRepository.QueryTemplateQueryResult queryWithDetails(String jsonQuery,
 int limit,
 int offset,
 org.gcube.informationsystem.resourceregistry.api.rest.MetadataPolicy metadataPolicy,
 boolean maskMetadata)
                                                                  throws org.gcube.informationsystem.resourceregistry.api.exceptions.queries.InvalidQueryException,
org.gcube.informationsystem.resourceregistry.api.exceptions.ResourceRegistryException

Executes a Query Template JSON query and reports whether its result is projection-based.

Parameters:

jsonQuery - the JSON query payload describing the Query Template search criteria

limit - the maximum number of results to return

offset - the number of results to skip

metadataPolicy - the metadata inclusion policy to apply to full representations

maskMetadata - whether sensitive metadata identity fields must be redacted

Returns:

the serialized result and its projection flag

Throws:

org.gcube.informationsystem.resourceregistry.api.exceptions.queries.InvalidQueryException - if the query is invalid or syntactically incorrect

org.gcube.informationsystem.resourceregistry.api.exceptions.ResourceRegistryException - on database or processing failure

read

public String read(String queryTemplateName,
 org.gcube.informationsystem.resourceregistry.api.rest.MetadataPolicy metadataPolicy)
            throws org.gcube.informationsystem.resourceregistry.api.exceptions.NotFoundException,
org.gcube.informationsystem.resourceregistry.api.exceptions.ResourceRegistryException

Reads a single Query Template by name.

Parameters:

queryTemplateName - the name of the Query Template to read

metadataPolicy - the metadata inclusion policy to apply

Returns:

the serialized JSON representation of the Query Template

Throws:

org.gcube.informationsystem.resourceregistry.api.exceptions.NotFoundException - if the Query Template does not exist

org.gcube.informationsystem.resourceregistry.api.exceptions.ResourceRegistryException - if the lookup fails

read

public String read(String queryTemplateName,
 org.gcube.informationsystem.resourceregistry.api.rest.MetadataPolicy metadataPolicy,
 boolean maskMetadata)
            throws org.gcube.informationsystem.resourceregistry.api.exceptions.NotFoundException,
org.gcube.informationsystem.resourceregistry.api.exceptions.ResourceRegistryException

Reads a single Query Template with the requested metadata identity policy.

Parameters:

queryTemplateName - the name of the Query Template to read

metadataPolicy - the metadata inclusion policy to apply

maskMetadata - whether to redact sensitive metadata identity fields

Returns:

the serialized JSON representation of the Query Template

Throws:

org.gcube.informationsystem.resourceregistry.api.exceptions.NotFoundException - if the Query Template does not exist

org.gcube.informationsystem.resourceregistry.api.exceptions.ResourceRegistryException - if the lookup fails

run

public TemplateExecutionResult run(String queryTemplateName,
 String params,
 int limit,
 int offset,
 boolean polymorphic,
 boolean hierarchical,
 boolean activeOnlyHierarchical,
 org.gcube.informationsystem.resourceregistry.api.rest.ContextsPolicy contextsPolicy,
 org.gcube.informationsystem.resourceregistry.api.rest.MetadataPolicy metadataPolicy,
 boolean maskMetadata,
 MembershipView membershipView)
                            throws org.gcube.informationsystem.resourceregistry.api.exceptions.NotFoundException,
org.gcube.informationsystem.resourceregistry.api.exceptions.queries.InvalidQueryException,
org.gcube.informationsystem.resourceregistry.api.exceptions.ResourceRegistryException

Executes the Query Template with the specified name and parameters.

Parameters:

queryTemplateName - the name of the Query Template to execute

params - JSON object containing parameter values for template substitution

limit - the maximum number of results to return (peek-adjusted by the caller for pagination)

offset - the number of results to skip

polymorphic - whether to include instances of subtypes in the results

hierarchical - whether to expand the search boundary to descendant Contexts

activeOnlyHierarchical - whether hierarchical execution must hide non-active descendant Contexts

contextsPolicy - the contexts inclusion policy to apply

metadataPolicy - the metadata inclusion policy to apply

maskMetadata - whether to redact sensitive metadata identity fields

membershipView - the view that selects the memberships listed by each contexts map

Returns:

the JSON array string of query results together with whether the query was projection-based (see TemplateExecutionResult)

Throws:

org.gcube.informationsystem.resourceregistry.api.exceptions.NotFoundException - if the Query Template does not exist

org.gcube.informationsystem.resourceregistry.api.exceptions.queries.InvalidQueryException - if the query execution fails

org.gcube.informationsystem.resourceregistry.api.exceptions.ResourceRegistryException - on database or processing failure

createOrUpdate

public QueryTemplateCreationResult createOrUpdate(String queryTemplateName,
 String json,
 org.gcube.informationsystem.resourceregistry.api.rest.MetadataPolicy metadataPolicy)
                                           throws org.gcube.informationsystem.resourceregistry.api.exceptions.NotFoundException,
org.gcube.informationsystem.resourceregistry.api.exceptions.instances.AvailableInAnotherContextException,
org.gcube.informationsystem.resourceregistry.api.exceptions.ResourceRegistryException

Creates or updates a Query Template.

Parameters:

queryTemplateName - the name of the Query Template to create or update

json - the raw Query Template JSON definition

metadataPolicy - the metadata inclusion policy to apply

Returns:

the outcome, carrying the serialized JSON representation of the created/updated Query Template and a created/updated flag

Throws:

org.gcube.informationsystem.resourceregistry.api.exceptions.NotFoundException - if referenced dependencies are not found

org.gcube.informationsystem.resourceregistry.api.exceptions.instances.AvailableInAnotherContextException - if the Query Template is available in another context

org.gcube.informationsystem.resourceregistry.api.exceptions.ResourceRegistryException - if the creation or update fails

delete

public void delete(String queryTemplateName)
            throws org.gcube.informationsystem.resourceregistry.api.exceptions.NotFoundException,
org.gcube.informationsystem.resourceregistry.api.exceptions.ResourceRegistryException

Deletes the Query Template with the specified name.

Parameters:

queryTemplateName - the name of the Query Template to delete

Throws:

org.gcube.informationsystem.resourceregistry.api.exceptions.NotFoundException - if the Query Template does not exist

org.gcube.informationsystem.resourceregistry.api.exceptions.ResourceRegistryException - if deletion fails