[logstash-plugins] output: added options to remove metadata fields

integration/logstash-plugins/logstash-input-vespa/README.md

@@ -20,7 +20,9 @@ export LOGSTASH_SOURCE=1
 bundle exec rspec
 ```
 
-To run integration tests, you'll need to have a Vespa instance running + Logstash installed. Check out the `integration-test` directory for more information.
+To run integration tests, you'll need to have a Vespa instance running with an app deployed that supports an "id" field. And Logstash installed.
+
+Check out the `integration-test` directory for more information.
 
 ```
 cd integration-test

integration/logstash-plugins/logstash-output-vespa/CHANGELOG.md

@@ -1,3 +1,6 @@
+## 0.6.0
+- adds options to remove fields after using them for writing
+
 ## 0.5.0
 - supports update and remove operations
 

integration/logstash-plugins/logstash-output-vespa/README.md

@@ -27,7 +27,9 @@ It looks like the JVM options from [here](https://github.com/logstash-plugins/.c
 are useful to make JRuby's `bundle install` work.
 
 ### Integration tests
-To run integration tests, you'll need to have a Vespa instance running + Logstash installed. Check out the `integration-test` directory for more information.
+To run integration tests, you'll need to have a Vespa instance running with an app deployed that supports an "id" field. And Logstash installed.
+
+Check out the `integration-test` directory for more information.
 
 ```
 cd integration-test
@@ -113,6 +115,12 @@ output {
     # if the field doesn't exist, we generate a UUID
     id_field => "id"
 
+    # remove fields from the document after using them for writing
+    remove_id => false          # if set to true, remove the ID field after using it
+    remove_namespace => false   # would remove the namespace field (if dynamic)
+    remove_document_type => false # same for document type
+    remove_operation => false   # and operation
+
     # how many HTTP/2 connections to keep open
     max_connections => 1
     # number of streams per connection

integration/logstash-plugins/logstash-output-vespa/VERSION

@@ -1 +1 @@
-0.5.2
+0.6.0

integration/logstash-plugins/logstash-output-vespa/docs/index.asciidoc

@@ -42,6 +42,10 @@ Writes documents to Vespa.
 | <<plugins-{type}s-{plugin}-operation>> |<<string,string>>|No
 | <<plugins-{type}s-{plugin}-create>> |<<boolean,boolean>>|No
 | <<plugins-{type}s-{plugin}-id_field>> |<<string,string>>|No
+| <<plugins-{type}s-{plugin}-remove_id>> |<<boolean,boolean>>|No
+| <<plugins-{type}s-{plugin}-remove_namespace>> |<<boolean,boolean>>|No
+| <<plugins-{type}s-{plugin}-remove_document_type>> |<<boolean,boolean>>|No
+| <<plugins-{type}s-{plugin}-remove_operation>> |<<boolean,boolean>>|No
 | <<plugins-{type}s-{plugin}-max_retries>> |<<number,number>>|No
 | <<plugins-{type}s-{plugin}-max_connections>> |<<number,number>>|No
 | <<plugins-{type}s-{plugin}-max_streams>> |<<number,number>>|No
@@ -77,6 +81,14 @@ Make sure to set the `client_key` as well. The certificate should be in PEM form
 
 Corresponding private key for the `client_cert` certificate. It must not be password-protected, otherwise Logstash will fail to start complaining `Could not find private key in PEM file`.
 
+[id="plugins-{type}s-{plugin}-id_field"]
+===== `id_field`
+
+* Value type is <<string,string>>
+* Default value is `id`
+
+Field to get the document id from. If not present, a UUID will be generated
+
 [id="plugins-{type}s-{plugin}-namespace"]
 ===== `namespace`
 
@@ -104,20 +116,45 @@ Like `namespace`, this can be static or dynamic. So you can use `%{foo}` to use
 
 Operation to perform. Can be `put`, `update`, or `remove`. Dynamic values are supported (e.g. `%{foo}`). If not present, the plugin will use `put`.
 
-[id="plugins-{type}s-{plugin}-create"]
-===== `create`
+
+[id="plugins-{type}s-{plugin}-remove_id"]
+===== `remove_id`
 
 * Value type is <<boolean,boolean>>
+* Default value is `false`
 
-If set to `true`, the plugin will add the `create=true` parameter to the request. It works for `put` and `update` operations, but mostly used for `update` as https://docs.vespa.ai/en/document-v1-api-guide.html#upserts[upserts].
+If set to `true`, removes the ID field from the document after using it for document identification.
 
-[id="plugins-{type}s-{plugin}-id_field"]
-===== `id_field`
+[id="plugins-{type}s-{plugin}-remove_namespace"]
+===== `remove_namespace`
 
-* Value type is <<string,string>>
-* Default value is `id`
+* Value type is <<boolean,boolean>>
+* Default value is `false`
 
-Field to get the document id from. If not present, a UUID will be generated
+When using a dynamic namespace (e.g., `%{my_namespace}`), if set to `true`, removes the field containing the namespace value from the document after using it.
+
+[id="plugins-{type}s-{plugin}-remove_document_type"]
+===== `remove_document_type`
+
+* Value type is <<boolean,boolean>>
+* Default value is `false`
+
+When using a dynamic document type (e.g., `%{my_doc_type}`), if set to `true`, removes the field containing the document type value from the document after using it.
+
+[id="plugins-{type}s-{plugin}-remove_operation"]
+===== `remove_operation`
+
+* Value type is <<boolean,boolean>>
+* Default value is `false`
+
+When using a dynamic operation (e.g., `%{my_operation}`), if set to `true`, removes the field containing the operation value from the document after using it.
+
+[id="plugins-{type}s-{plugin}-create"]
+===== `create`
+
+* Value type is <<boolean,boolean>>
+
+If set to `true`, the plugin will add the `create=true` parameter to the request. It works for `put` and `update` operations, but mostly used for `update` as https://docs.vespa.ai/en/document-v1-api-guide.html#upserts[upserts].
 
 [id="plugins-{type}s-{plugin}-max_retries"]
 ===== `max_retries`

integration/logstash-plugins/logstash-output-vespa/lib/logstash-output-vespa_feed_jars.rb

@@ -2,4 +2,4 @@
 # encoding: utf-8
 
 require 'jar_dependencies'
-require_jar('org.logstashplugins', 'logstash-output-vespa_feed', '0.5.2')
+require_jar('org.logstashplugins', 'logstash-output-vespa_feed', '0.6.0')

integration/logstash-plugins/logstash-output-vespa/src/main/java/org/logstashplugins/VespaFeed.java

@@ -32,10 +32,21 @@ public class VespaFeed implements Output {
             PluginConfigSpec.uriSetting("vespa_url", "http://localhost:8080");
     public static final PluginConfigSpec<String> NAMESPACE =
             PluginConfigSpec.requiredStringSetting("namespace");
+    // if namespace is set to %{field_name} or %{[field_name]}, it's dynamic
+    // if remove_namespace is true, the namespace is removed from the document
+    public static final PluginConfigSpec<Boolean> REMOVE_NAMESPACE =
+            PluginConfigSpec.booleanSetting("remove_namespace", false);
     public static final PluginConfigSpec<String> DOCUMENT_TYPE =
             PluginConfigSpec.requiredStringSetting("document_type");
+    // if remove_document_type is true, the document type is removed from the document (assuming it's dynamic)
+    public static final PluginConfigSpec<Boolean> REMOVE_DOCUMENT_TYPE =
+            PluginConfigSpec.booleanSetting("remove_document_type", false);
+    // field from the event to use as doc ID
     public static final PluginConfigSpec<String> ID_FIELD =
             PluginConfigSpec.stringSetting("id_field", "id");
+    // if remove_id is true, the id field is removed from the document
+    public static final PluginConfigSpec<Boolean> REMOVE_ID =
+            PluginConfigSpec.booleanSetting("remove_id", false);
 
     // client certificate and key
     public static final PluginConfigSpec<String> CLIENT_CERT =
@@ -46,6 +57,9 @@ public class VespaFeed implements Output {
     // put, update or remove
     public static final PluginConfigSpec<String> OPERATION =
             PluginConfigSpec.stringSetting("operation", "put");
+    // if remove_operation is true, the operation field is removed from the document (assuming it's dynamic)
+    public static final PluginConfigSpec<Boolean> REMOVE_OPERATION =
+            PluginConfigSpec.booleanSetting("remove_operation", false);
     // whether to add create=true to the put/update request
     public static final PluginConfigSpec<Boolean> CREATE =
             PluginConfigSpec.booleanSetting("create", false);
@@ -76,15 +90,19 @@ public class VespaFeed implements Output {
     private final String id;
     private final String namespace;
     private final boolean dynamicNamespace;
+    private final boolean removeNamespace;
     private final String documentType;
     private final boolean dynamicDocumentType;
+    private final boolean removeDocumentType;
     private final String operation;
     private final boolean dynamicOperation;
     private final boolean create;
     private final String idField;
+    private final boolean removeId;
     private final long operationTimeout;
     private volatile boolean stopped = false;
     ObjectMapper objectMapper;
+    private final boolean removeOperation;
 
 
     public VespaFeed(final String id, final Configuration config, final Context context) {
@@ -94,12 +112,12 @@ public VespaFeed(final String id, final Configuration config, final Context cont
         DynamicOption configOption = new DynamicOption(config.get(NAMESPACE));
         dynamicNamespace = configOption.isDynamic();
         namespace = configOption.getParsedConfigValue();
-
+        removeNamespace = config.get(REMOVE_NAMESPACE);
         // same with document type
         configOption = new DynamicOption(config.get(DOCUMENT_TYPE));
         dynamicDocumentType = configOption.isDynamic();
         documentType = configOption.getParsedConfigValue();
-
+        removeDocumentType = config.get(REMOVE_DOCUMENT_TYPE);
         // and operation
         configOption = new DynamicOption(config.get(OPERATION));
         dynamicOperation = configOption.isDynamic();
@@ -110,7 +128,8 @@ public VespaFeed(final String id, final Configuration config, final Context cont
         operationTimeout = config.get(OPERATION_TIMEOUT);
 
         idField = config.get(ID_FIELD);
-
+        removeId = config.get(REMOVE_ID);
+        this.removeOperation = config.get(REMOVE_OPERATION);
         FeedClientBuilder builder = FeedClientBuilder.create(config.get(VESPA_URL))
                     .setConnectionsPerEndpoint(config.get(MAX_CONNECTIONS).intValue())
                     .setMaxStreamPerConnection(config.get(MAX_STREAMS).intValue())
@@ -221,30 +240,35 @@ public void output(final Collection<Event> events) {
     }
 
     protected CompletableFuture<Result> asyncFeed(Event event) throws JsonProcessingException {
-        Map<String, Object> eventData = event.getData();
-
-        // we put the doc ID here
+        // try to get the doc ID from the event, otherwise generate a UUID
         String docIdStr;
-
-        // see if the event has an ID field (as configured)
-        // if it does, use it as docIdStr. Otherwise, generate a UUID
-        if (eventData.containsKey(idField)) {
-            docIdStr = eventData.get(idField).toString();
-        } else {
+        Object docIdObj = event.getField(idField);
+        if (docIdObj == null) {
             docIdStr = UUID.randomUUID().toString();
+        } else {
+            docIdStr = docIdObj.toString();
+            // Remove the ID field if configured to do so
+            if (removeId) {
+                event.remove(idField);
+            }
         }
 
         // if the namespace is dynamic, we need to resolve it
-        // the default (if we don't have such a field) is simply the name of the field
         String namespace = this.namespace;
         if (dynamicNamespace) {
             namespace = getDynamicField(event, this.namespace);
+            if (removeNamespace) {
+                event.remove(namespace);
+            }
         }
 
         // similar logic for the document type
         String documentType = this.documentType;
         if (dynamicDocumentType) {
             documentType = getDynamicField(event, this.documentType);
+            if (removeDocumentType) {
+                event.remove(documentType);
+            }
         }
 
         // and the operation
@@ -256,6 +280,9 @@ protected CompletableFuture<Result> asyncFeed(Event event) throws JsonProcessing
                 // TODO we should put this in the dead letter queue
                 return null;
             }
+            if (removeOperation) {
+                event.remove(this.operation);
+            }
         }
         // add create=true, if applicable
         OperationParameters operationParameters = addCreateIfApplicable(operation, docIdStr);
@@ -265,10 +292,9 @@ protected CompletableFuture<Result> asyncFeed(Event event) throws JsonProcessing
         DocumentId docId = DocumentId.of(namespace,
                 documentType, docIdStr);
 
-        // create a document from the event data. We need an enclosing "fields" object
-        // to match the Vespa put format
+        // create a document from the event data
         Map<String,Object> doc = new HashMap<>();
-        doc.put("fields", eventData);
+        doc.put("fields", event.getData());  // Use the modified eventData here
 
         // create the request to feed the document
         if (operation.equals("put")) {
@@ -335,7 +361,9 @@ public void awaitStop() throws InterruptedException {
 
     @Override
     public Collection<PluginConfigSpec<?>> configSchema() {
-        return List.of(VESPA_URL, CLIENT_CERT, CLIENT_KEY, OPERATION, CREATE, NAMESPACE, DOCUMENT_TYPE, ID_FIELD,
+        return List.of(VESPA_URL, CLIENT_CERT, CLIENT_KEY, OPERATION, CREATE,
+                NAMESPACE, REMOVE_NAMESPACE, DOCUMENT_TYPE, REMOVE_DOCUMENT_TYPE, ID_FIELD, REMOVE_ID,
+                REMOVE_OPERATION,
                 MAX_CONNECTIONS, MAX_STREAMS, MAX_RETRIES, OPERATION_TIMEOUT, GRACE_PERIOD, DOOM_PERIOD);
     }