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new 2e6854d23d6c [backport camel-4.18.x] CAMEL-24535:
camel-tensorflow-serving - deprecate the Target and Credentials headers (#26317)
2e6854d23d6c is described below
commit 2e6854d23d6cdb15d8a1a3cb2bae63d325c772b7
Author: Guillaume Nodet <[email protected]>
AuthorDate: Fri Sep 11 21:17:47 2026 +0200
[backport camel-4.18.x] CAMEL-24535: camel-tensorflow-serving - deprecate
the Target and Credentials headers (#26317)
Backport of #26194 to camel-4.18.x.
Co-authored-by: Claude Opus 5 <[email protected]>
Signed-off-by: Claus Ibsen <[email protected]>
---
.../camel/catalog/components/tensorflow-serving.json | 4 ++--
.../tensorflow/serving/tensorflow-serving.json | 4 ++--
.../serving/TensorFlowServingConstants.java | 20 ++++++++++++++++++--
.../ROOT/pages/camel-4x-upgrade-guide-4_18.adoc | 16 ++++++++++++++++
.../dsl/TensorFlowServingEndpointBuilderFactory.java | 9 +++++++--
5 files changed, 45 insertions(+), 8 deletions(-)
diff --git
a/catalog/camel-catalog/src/generated/resources/org/apache/camel/catalog/components/tensorflow-serving.json
b/catalog/camel-catalog/src/generated/resources/org/apache/camel/catalog/components/tensorflow-serving.json
index c4db1df5dead..154db23c3ee1 100644
---
a/catalog/camel-catalog/src/generated/resources/org/apache/camel/catalog/components/tensorflow-serving.json
+++
b/catalog/camel-catalog/src/generated/resources/org/apache/camel/catalog/components/tensorflow-serving.json
@@ -35,8 +35,8 @@
"credentials": { "index": 8, "kind": "property", "displayName":
"Credentials", "group": "security", "label": "security", "required": false,
"type": "object", "javaType": "io.grpc.ChannelCredentials", "deprecated":
false, "autowired": false, "secret": false, "configurationClass":
"org.apache.camel.component.tensorflow.serving.TensorFlowServingConfiguration",
"configurationField": "configuration", "description": "The credentials of the
client." }
},
"headers": {
- "CamelTensorFlowServingTarget": { "index": 0, "kind": "header",
"displayName": "", "group": "producer", "label": "", "required": false,
"javaType": "String", "deprecated": false, "deprecationNote": "", "autowired":
false, "secret": false, "description": "The target of the client. See:
https:\/\/grpc.github.io\/grpc-java\/javadoc\/io\/grpc\/Grpc.html#newChannelBuilder%28java.lang.String,io.grpc.ChannelCredentials%29",
"constantName": "org.apache.camel.component.tensorflow.serving.Tens [...]
- "CamelTensorFlowServingCredentials": { "index": 1, "kind": "header",
"displayName": "", "group": "producer", "label": "", "required": false,
"javaType": "io.grpc.ChannelCredentials", "deprecated": false,
"deprecationNote": "", "autowired": false, "secret": false, "description": "The
credentials of the client.", "constantName":
"org.apache.camel.component.tensorflow.serving.TensorFlowServingConstants#CREDENTIALS"
},
+ "CamelTensorFlowServingTarget": { "index": 0, "kind": "header",
"displayName": "", "group": "producer", "label": "", "required": false,
"javaType": "String", "deprecated": true, "deprecationNote": "Never read by the
component. The gRPC channel is built once when the endpoint is initialised, so
it cannot be redirected per exchange. Use the target endpoint option.",
"autowired": false, "secret": false, "description": "The target of the client.
See: https:\/\/grpc.github.io\/grpc-java\/ [...]
+ "CamelTensorFlowServingCredentials": { "index": 1, "kind": "header",
"displayName": "", "group": "producer", "label": "", "required": false,
"javaType": "io.grpc.ChannelCredentials", "deprecated": true,
"deprecationNote": "Never read by the component. The gRPC channel is built once
when the endpoint is initialised, so it cannot be re-authenticated per
exchange. Use the credentials endpoint option.", "autowired": false, "secret":
false, "description": "The credentials of the client. D [...]
"CamelTensorFlowServingModelName": { "index": 2, "kind": "header",
"displayName": "", "group": "producer", "label": "", "required": false,
"javaType": "String", "deprecated": false, "deprecationNote": "", "autowired":
false, "secret": false, "description": "Required servable name.",
"constantName":
"org.apache.camel.component.tensorflow.serving.TensorFlowServingConstants#MODEL_NAME"
},
"CamelTensorFlowServingModelVersion": { "index": 3, "kind": "header",
"displayName": "", "group": "producer", "label": "", "required": false,
"javaType": "long", "deprecated": false, "deprecationNote": "", "autowired":
false, "secret": false, "description": "Optional choice of which version of the
model to use. Use this specific version number.", "constantName":
"org.apache.camel.component.tensorflow.serving.TensorFlowServingConstants#MODEL_VERSION"
},
"CamelTensorFlowServingModelVersionLabel": { "index": 4, "kind": "header",
"displayName": "", "group": "producer", "label": "", "required": false,
"javaType": "String", "deprecated": false, "deprecationNote": "", "autowired":
false, "secret": false, "description": "Optional choice of which version of the
model to use. Use the version associated with the given label.",
"constantName":
"org.apache.camel.component.tensorflow.serving.TensorFlowServingConstants#MODEL_VERSION_LABEL"
},
diff --git
a/components/camel-ai/camel-tensorflow-serving/src/generated/resources/META-INF/org/apache/camel/component/tensorflow/serving/tensorflow-serving.json
b/components/camel-ai/camel-tensorflow-serving/src/generated/resources/META-INF/org/apache/camel/component/tensorflow/serving/tensorflow-serving.json
index c4db1df5dead..154db23c3ee1 100644
---
a/components/camel-ai/camel-tensorflow-serving/src/generated/resources/META-INF/org/apache/camel/component/tensorflow/serving/tensorflow-serving.json
+++
b/components/camel-ai/camel-tensorflow-serving/src/generated/resources/META-INF/org/apache/camel/component/tensorflow/serving/tensorflow-serving.json
@@ -35,8 +35,8 @@
"credentials": { "index": 8, "kind": "property", "displayName":
"Credentials", "group": "security", "label": "security", "required": false,
"type": "object", "javaType": "io.grpc.ChannelCredentials", "deprecated":
false, "autowired": false, "secret": false, "configurationClass":
"org.apache.camel.component.tensorflow.serving.TensorFlowServingConfiguration",
"configurationField": "configuration", "description": "The credentials of the
client." }
},
"headers": {
- "CamelTensorFlowServingTarget": { "index": 0, "kind": "header",
"displayName": "", "group": "producer", "label": "", "required": false,
"javaType": "String", "deprecated": false, "deprecationNote": "", "autowired":
false, "secret": false, "description": "The target of the client. See:
https:\/\/grpc.github.io\/grpc-java\/javadoc\/io\/grpc\/Grpc.html#newChannelBuilder%28java.lang.String,io.grpc.ChannelCredentials%29",
"constantName": "org.apache.camel.component.tensorflow.serving.Tens [...]
- "CamelTensorFlowServingCredentials": { "index": 1, "kind": "header",
"displayName": "", "group": "producer", "label": "", "required": false,
"javaType": "io.grpc.ChannelCredentials", "deprecated": false,
"deprecationNote": "", "autowired": false, "secret": false, "description": "The
credentials of the client.", "constantName":
"org.apache.camel.component.tensorflow.serving.TensorFlowServingConstants#CREDENTIALS"
},
+ "CamelTensorFlowServingTarget": { "index": 0, "kind": "header",
"displayName": "", "group": "producer", "label": "", "required": false,
"javaType": "String", "deprecated": true, "deprecationNote": "Never read by the
component. The gRPC channel is built once when the endpoint is initialised, so
it cannot be redirected per exchange. Use the target endpoint option.",
"autowired": false, "secret": false, "description": "The target of the client.
See: https:\/\/grpc.github.io\/grpc-java\/ [...]
+ "CamelTensorFlowServingCredentials": { "index": 1, "kind": "header",
"displayName": "", "group": "producer", "label": "", "required": false,
"javaType": "io.grpc.ChannelCredentials", "deprecated": true,
"deprecationNote": "Never read by the component. The gRPC channel is built once
when the endpoint is initialised, so it cannot be re-authenticated per
exchange. Use the credentials endpoint option.", "autowired": false, "secret":
false, "description": "The credentials of the client. D [...]
"CamelTensorFlowServingModelName": { "index": 2, "kind": "header",
"displayName": "", "group": "producer", "label": "", "required": false,
"javaType": "String", "deprecated": false, "deprecationNote": "", "autowired":
false, "secret": false, "description": "Required servable name.",
"constantName":
"org.apache.camel.component.tensorflow.serving.TensorFlowServingConstants#MODEL_NAME"
},
"CamelTensorFlowServingModelVersion": { "index": 3, "kind": "header",
"displayName": "", "group": "producer", "label": "", "required": false,
"javaType": "long", "deprecated": false, "deprecationNote": "", "autowired":
false, "secret": false, "description": "Optional choice of which version of the
model to use. Use this specific version number.", "constantName":
"org.apache.camel.component.tensorflow.serving.TensorFlowServingConstants#MODEL_VERSION"
},
"CamelTensorFlowServingModelVersionLabel": { "index": 4, "kind": "header",
"displayName": "", "group": "producer", "label": "", "required": false,
"javaType": "String", "deprecated": false, "deprecationNote": "", "autowired":
false, "secret": false, "description": "Optional choice of which version of the
model to use. Use the version associated with the given label.",
"constantName":
"org.apache.camel.component.tensorflow.serving.TensorFlowServingConstants#MODEL_VERSION_LABEL"
},
diff --git
a/components/camel-ai/camel-tensorflow-serving/src/main/java/org/apache/camel/component/tensorflow/serving/TensorFlowServingConstants.java
b/components/camel-ai/camel-tensorflow-serving/src/main/java/org/apache/camel/component/tensorflow/serving/TensorFlowServingConstants.java
index d66d34975f70..a45447ca5e5c 100644
---
a/components/camel-ai/camel-tensorflow-serving/src/main/java/org/apache/camel/component/tensorflow/serving/TensorFlowServingConstants.java
+++
b/components/camel-ai/camel-tensorflow-serving/src/main/java/org/apache/camel/component/tensorflow/serving/TensorFlowServingConstants.java
@@ -23,11 +23,27 @@ import org.apache.camel.spi.Metadata;
*/
public interface TensorFlowServingConstants {
+ /**
+ * @deprecated Never read by the component. The gRPC channel is built once
when the endpoint is initialised, so it
+ * cannot be redirected per exchange. Use the {@code target}
endpoint option instead, or route to a
+ * different endpoint with {@code toD} when the destination
varies per message.
+ */
@Metadata(description = "The target of the client. See:
https://grpc.github.io/grpc-java/javadoc/io/grpc/Grpc.html#newChannelBuilder%28java.lang.String,io.grpc.ChannelCredentials%29";,
- javaType = "String")
+ javaType = "String",
+ deprecationNote = "Never read by the component. The gRPC channel
is built once when the endpoint is"
+ + " initialised, so it cannot be redirected
per exchange. Use the target endpoint option.")
+ @Deprecated
String TARGET = "CamelTensorFlowServingTarget";
- @Metadata(description = "The credentials of the client.", javaType =
"io.grpc.ChannelCredentials")
+ /**
+ * @deprecated Never read by the component. The gRPC channel is built once
when the endpoint is initialised, so it
+ * cannot be re-authenticated per exchange. Use the {@code
credentials} endpoint option instead.
+ */
+ @Metadata(description = "The credentials of the client.", javaType =
"io.grpc.ChannelCredentials",
+ deprecationNote = "Never read by the component. The gRPC channel
is built once when the endpoint is"
+ + " initialised, so it cannot be
re-authenticated per exchange. Use the credentials"
+ + " endpoint option.")
+ @Deprecated
String CREDENTIALS = "CamelTensorFlowServingCredentials";
@Metadata(description = "Required servable name.", javaType = "String")
diff --git
a/docs/user-manual/modules/ROOT/pages/camel-4x-upgrade-guide-4_18.adoc
b/docs/user-manual/modules/ROOT/pages/camel-4x-upgrade-guide-4_18.adoc
index 6f66a5feafce..b3b24f7dca1b 100644
--- a/docs/user-manual/modules/ROOT/pages/camel-4x-upgrade-guide-4_18.adoc
+++ b/docs/user-manual/modules/ROOT/pages/camel-4x-upgrade-guide-4_18.adoc
@@ -1734,6 +1734,22 @@ two names differed, that header never carried a usable
`DataHandler` in the firs
names happened to be equal did it resolve, and then the name is unchanged. A
route that expected the
attachment header under the uploaded file name should read it under the
multipart field name.
+=== camel-tensorflow-serving - the Target and Credentials headers are
deprecated
+
+`TensorFlowServingConstants.TARGET` (`CamelTensorFlowServingTarget`) and
+`TensorFlowServingConstants.CREDENTIALS` (`CamelTensorFlowServingCredentials`)
are deprecated. Both
+were declared with `@Metadata` and advertised through the endpoint's
`headersClass`, but neither has
+ever been read by the component.
+
+The gRPC channel and its stubs are built once in
`TensorFlowServingEndpoint.doInit()` from
+`configuration.getTarget()` and `configuration.getCredentials()`, so a
per-exchange override supplied
+as a header cannot take effect. A route that set either header was silently
ignored. The sibling
+`camel-kserve` component declares neither.
+
+Configure the `target` and `credentials` endpoint options instead, or route to
a different endpoint
+with `toD` when the destination varies per message. The constants remain in
place for backwards
+compatibility and are now marked deprecated in the component metadata.
+
=== camel-vertx-http - the REST producer applies the outbound header filter
`VertxHttpRestHeaderFilterStrategy.applyFilterToCamelHeaders` delegated to
diff --git
a/dsl/camel-endpointdsl/src/generated/java/org/apache/camel/builder/endpoint/dsl/TensorFlowServingEndpointBuilderFactory.java
b/dsl/camel-endpointdsl/src/generated/java/org/apache/camel/builder/endpoint/dsl/TensorFlowServingEndpointBuilderFactory.java
index 818bb6fa8e2a..fecb15ff309f 100644
---
a/dsl/camel-endpointdsl/src/generated/java/org/apache/camel/builder/endpoint/dsl/TensorFlowServingEndpointBuilderFactory.java
+++
b/dsl/camel-endpointdsl/src/generated/java/org/apache/camel/builder/endpoint/dsl/TensorFlowServingEndpointBuilderFactory.java
@@ -299,7 +299,7 @@ public interface TensorFlowServingEndpointBuilderFactory {
/**
* The target of the client. See:
- *
https://grpc.github.io/grpc-java/javadoc/io/grpc/Grpc.html#newChannelBuilder%28java.lang.String,io.grpc.ChannelCredentials%29.
+ *
https://grpc.github.io/grpc-java/javadoc/io/grpc/Grpc.html#newChannelBuilder%28java.lang.String,io.grpc.ChannelCredentials%29.
Deprecation note: Never read by the component. The gRPC channel is built once
when the endpoint is initialised, so it cannot be redirected per exchange. Use
the target endpoint option.
*
* The option is a: {@code String} type.
*
@@ -307,11 +307,15 @@ public interface TensorFlowServingEndpointBuilderFactory {
*
* @return the name of the header {@code TensorFlowServingTarget}.
*/
+ @Deprecated
public String tensorFlowServingTarget() {
return "CamelTensorFlowServingTarget";
}
/**
- * The credentials of the client.
+ * The credentials of the client. Deprecation note: Never read by the
+ * component. The gRPC channel is built once when the endpoint is
+ * initialised, so it cannot be re-authenticated per exchange. Use the
+ * credentials endpoint option.
*
* The option is a: {@code io.grpc.ChannelCredentials} type.
*
@@ -319,6 +323,7 @@ public interface TensorFlowServingEndpointBuilderFactory {
*
* @return the name of the header {@code TensorFlowServingCredentials}.
*/
+ @Deprecated
public String tensorFlowServingCredentials() {
return "CamelTensorFlowServingCredentials";
}
