Struct c2pa::ManifestAssertion
source · pub struct ManifestAssertion { /* private fields */ }
Expand description
A labeled container for an Assertion value in a Manifest
Implementations§
source§impl ManifestAssertion
impl ManifestAssertion
sourcepub fn label_with_instance(&self) -> String
pub fn label_with_instance(&self) -> String
An assertion label in reverse domain format with appended instance number The instance number follows two underscores and is only added when the instance is > 1 This is a c2pa spec internal standard format
sourcepub fn value(&self) -> Result<&Value>
pub fn value(&self) -> Result<&Value>
The data of the assertion as a serde_Json::Value This will return UnsupportedType if the assertion data is binary
sourcepub fn binary(&self) -> Result<&[u8]>
pub fn binary(&self) -> Result<&[u8]>
The data of the assertion as u8 binary vector This will return UnsupportedType if the assertion data is Json/String
sourcepub fn instance(&self) -> usize
pub fn instance(&self) -> usize
The instance number of this assertion If the same label is used for multiple assertions, incremental instances are added The first instance is always 1 and increased by 1 per duplicated label
sourcepub fn kind(&self) -> &ManifestAssertionKind
pub fn kind(&self) -> &ManifestAssertionKind
The ManifestAssertionKind for this assertion This refers to how the format of the assertion inside a C2PA manifest The default is ManifestAssertionKind::Cbor
sourcepub fn set_kind(self, kind: ManifestAssertionKind) -> Self
pub fn set_kind(self, kind: ManifestAssertionKind) -> Self
Allows overriding the default ManifestAssertionKind to Json For assertions like Schema.org that require being stored in Json format
sourcepub fn from_labeled_assertion<S: Into<String>, T: Serialize>(
label: S,
data: &T
) -> Result<Self>
pub fn from_labeled_assertion<S: Into<String>, T: Serialize>( label: S, data: &T ) -> Result<Self>
Creates a ManifestAssertion with the given label and any serde serializable object
§Example: Creating a custom assertion from a serde_json object.
use c2pa::ManifestAssertion;
use serde_json::json;
let value = json!({"my_tag": "Anything I want"});
let _ma = ManifestAssertion::from_labeled_assertion("org.contentauth.foo", &value)?;
sourcepub fn from_assertion<T: Serialize + AssertionBase>(data: &T) -> Result<Self>
pub fn from_assertion<T: Serialize + AssertionBase>(data: &T) -> Result<Self>
Creates a ManifestAssertion from an AssertionBase object
§Example: Creating a custom assertion an Action assertion
use c2pa::{
assertions::{c2pa_action, Action, Actions},
ManifestAssertion,
};
let actions = Actions::new().add_action(Action::new(c2pa_action::EDITED));
let _ma = ManifestAssertion::from_labeled_assertion(Actions::LABEL, &actions)?;
sourcepub fn to_assertion<T: DeserializeOwned>(&self) -> Result<T>
pub fn to_assertion<T: DeserializeOwned>(&self) -> Result<T>
Creates an Assertion object from a ManifestAssertion
§Example: extracting an Actions Assertion
use c2pa::{
assertions::{c2pa_action, Action, Actions},
ManifestAssertion,
};
let actions = Actions::new().add_action(Action::new(c2pa_action::EDITED));
let manifest_assertion = ManifestAssertion::from_labeled_assertion(Actions::LABEL, &actions)?;
let actions: Actions = manifest_assertion.to_assertion()?;
for action in actions.actions {
println!("{}", action.action());
}
Trait Implementations§
source§impl Clone for ManifestAssertion
impl Clone for ManifestAssertion
source§fn clone(&self) -> ManifestAssertion
fn clone(&self) -> ManifestAssertion
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl Debug for ManifestAssertion
impl Debug for ManifestAssertion
source§impl<'de> Deserialize<'de> for ManifestAssertion
impl<'de> Deserialize<'de> for ManifestAssertion
source§fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where
__D: Deserializer<'de>,
fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where
__D: Deserializer<'de>,
source§impl JsonSchema for ManifestAssertion
impl JsonSchema for ManifestAssertion
source§fn schema_name() -> String
fn schema_name() -> String
source§fn schema_id() -> Cow<'static, str>
fn schema_id() -> Cow<'static, str>
source§fn json_schema(gen: &mut SchemaGenerator) -> Schema
fn json_schema(gen: &mut SchemaGenerator) -> Schema
source§fn is_referenceable() -> bool
fn is_referenceable() -> bool
$ref
keyword. Read moreAuto Trait Implementations§
impl Freeze for ManifestAssertion
impl RefUnwindSafe for ManifestAssertion
impl Send for ManifestAssertion
impl Sync for ManifestAssertion
impl Unpin for ManifestAssertion
impl UnwindSafe for ManifestAssertion
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