NIFI-15733 - Add CapabilityTag annotation

src/main/java/org/apache/nifi/annotation/documentation/CapabilityTag.java

@@ -0,0 +1,54 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.nifi.annotation.documentation;
+
+import java.lang.annotation.Documented;
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Inherited;
+import java.lang.annotation.Repeatable;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+/**
+ * Annotation that can be applied to a {@link org.apache.nifi.processor.Processor Processor},
+ * {@link org.apache.nifi.controller.ControllerService ControllerService},
+ * {@link org.apache.nifi.parameter.ParameterProvider ParameterProvider},
+ * {@link org.apache.nifi.flowanalysis.FlowAnalysisRule FlowAnalysisRule}, or
+ * {@link org.apache.nifi.reporting.ReportingTask ReportingTask} in order to
+ * associate a key-value pair with the component. These tags do not affect the
+ * component in any way but serve as additional documentation and can be
+ * included in the extension manifest and generated documentation.
+ */
+@Documented
+@Target({ElementType.TYPE})
+@Retention(RetentionPolicy.RUNTIME)
+@Inherited
+@Repeatable(CapabilityTags.class)
+public @interface CapabilityTag {
+
+    /**
+     * @return the key of the capability tag
+     */
+    String key();
+
+    /**
+     * @return the value of the capability tag
+     */
+    String value();
+}

src/main/java/org/apache/nifi/annotation/documentation/CapabilityTags.java

@@ -0,0 +1,36 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.nifi.annotation.documentation;
+
+import java.lang.annotation.Documented;
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Inherited;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+/**
+ * An enclosing annotation that can be used in order to use the {@link CapabilityTag} annotation in a repeated manner.
+ */
+@Documented
+@Target({ElementType.TYPE})
+@Retention(RetentionPolicy.RUNTIME)
+@Inherited
+public @interface CapabilityTags {
+    CapabilityTag[] value();
+}