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package circuitbreaker |
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import ( |
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"context" |
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"github.com/sony/gobreaker" |
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"github.com/Permify/permify/internal/storage" |
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"github.com/Permify/permify/pkg/database" |
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base "github.com/Permify/permify/pkg/pb/base/v1" |
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) |
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// SchemaReader - Add circuit breaker behaviour to schema reader |
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type SchemaReader struct { |
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delegate storage.SchemaReader |
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cb *gobreaker.CircuitBreaker |
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} |
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// NewSchemaReader - Add circuit breaker behaviour to new schema reader |
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func NewSchemaReader(delegate storage.SchemaReader, cb *gobreaker.CircuitBreaker) *SchemaReader { |
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return &SchemaReader{delegate: delegate, cb: cb} |
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} |
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// ReadSchema returns the schema definition for a specific tenant and version as a structured object. |
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func (r *SchemaReader) ReadSchema(ctx context.Context, tenantID, version string) (*base.SchemaDefinition, error) { |
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response, err := r.cb.Execute(func() (interface{}, error) { |
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return r.delegate.ReadSchema(ctx, tenantID, version) |
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}) |
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if err != nil { |
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return nil, err |
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} |
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return response.(*base.SchemaDefinition), nil |
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} |
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// ReadSchemaString returns the schema definition for a specific tenant and version as a string. |
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func (r *SchemaReader) ReadSchemaString(ctx context.Context, tenantID, version string) (definitions []string, err error) { |
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response, err := r.cb.Execute(func() (interface{}, error) { |
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return r.delegate.ReadSchemaString(ctx, tenantID, version) |
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}) |
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if err != nil { |
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return nil, err |
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} |
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return response.([]string), nil |
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} |
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// ReadEntityDefinition - Read entity definition from repository |
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func (r *SchemaReader) ReadEntityDefinition(ctx context.Context, tenantID, entityName, version string) (*base.EntityDefinition, string, error) { |
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type circuitBreakerResponse struct { |
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Definition *base.EntityDefinition |
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Version string |
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} |
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response, err := r.cb.Execute(func() (interface{}, error) { |
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var err error |
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var resp circuitBreakerResponse |
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resp.Definition, resp.Version, err = r.delegate.ReadEntityDefinition(ctx, tenantID, entityName, version) |
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return resp, err |
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}) |
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if err != nil { |
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return nil, "", err |
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} |
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resp := response.(circuitBreakerResponse) |
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return resp.Definition, resp.Version, nil |
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} |
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// ReadRuleDefinition - Read rule definition from repository |
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func (r *SchemaReader) ReadRuleDefinition(ctx context.Context, tenantID, ruleName, version string) (*base.RuleDefinition, string, error) { |
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type circuitBreakerResponse struct { |
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Definition *base.RuleDefinition |
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Version string |
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} |
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response, err := r.cb.Execute(func() (interface{}, error) { |
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var err error |
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var resp circuitBreakerResponse |
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resp.Definition, resp.Version, err = r.delegate.ReadRuleDefinition(ctx, tenantID, ruleName, version) |
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return resp, err |
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}) |
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if err != nil { |
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return nil, "", err |
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} |
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resp := response.(circuitBreakerResponse) |
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return resp.Definition, resp.Version, nil |
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} |
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// HeadVersion - Finds the latest version of the schema. |
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func (r *SchemaReader) HeadVersion(ctx context.Context, tenantID string) (version string, err error) { |
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response, err := r.cb.Execute(func() (interface{}, error) { |
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return r.delegate.HeadVersion(ctx, tenantID) |
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}) |
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if err != nil { |
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return "", err |
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} |
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return response.(string), nil |
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} |
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// ListSchemas - List all Schemas |
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func (r *SchemaReader) ListSchemas(ctx context.Context, tenantID string, pagination database.Pagination) (schemas []*base.SchemaList, ct database.EncodedContinuousToken, err error) { |
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type circuitBreakerResponse struct { |
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Schemas []*base.SchemaList |
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Ct database.EncodedContinuousToken |
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} |
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response, err := r.cb.Execute(func() (interface{}, error) { |
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var err error |
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var resp circuitBreakerResponse |
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resp.Schemas, resp.Ct, err = r.delegate.ListSchemas(ctx, tenantID, pagination) |
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return resp, err |
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}) |
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if err != nil { |
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return nil, nil, err |
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} |
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resp := response.(circuitBreakerResponse) |
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return resp.Schemas, resp.Ct, nil |
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} |
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Permify /
permify
