Add property name to ListenPort interface

Author: kevdoran

src/main/java/org/apache/nifi/components/listen/ListenPort.java

@@ -23,12 +23,19 @@
 public interface ListenPort {
 
     /**
-     * Get The operating system numbered port that is listening for network traffic.
+     * Get the operating system numbered port that is listening for network traffic.
      *
      * @return the port number
      */
     int getPortNumber();
 
+    /**
+     * Get the name of the property that defines the listen port.
+     *
+     * @return the name of the port propert corresponding to this listen port, or null if it is not defined by a property
+     */
+    String getPortPropertyName();
+
     /**
      * Get the layer 4 transport protocol that is used at the OS networking level for this port.
      *

src/main/java/org/apache/nifi/components/listen/StandardListenPort.java

@@ -22,6 +22,7 @@
 public class StandardListenPort implements ListenPort {
 
     private final int portNumber;
+    private final String portPropertyName;
     private final TransportProtocol transportProtocol;
     private final List<String> applicationProtocols;
 
@@ -30,6 +31,7 @@ private StandardListenPort(final Builder builder) {
         Objects.requireNonNull(builder.applicationProtocols, "Application protocols is required. Use empty list if there are no application protocols.");
 
         this.portNumber = builder.portNumber;
+        this.portPropertyName = builder.portPropertyName;
         this.transportProtocol = builder.transportProtocol;
         this.applicationProtocols = builder.applicationProtocols;
     }
@@ -39,6 +41,11 @@ public int getPortNumber() {
         return portNumber;
     }
 
+    @Override
+    public String getPortPropertyName() {
+        return portPropertyName;
+    }
+
     @Override
     public TransportProtocol getTransportProtocol() {
         return transportProtocol;
@@ -76,6 +83,7 @@ public static Builder builder() {
 
     public static final class Builder {
         private int portNumber;
+        private String portPropertyName;
         private TransportProtocol transportProtocol;
         private List<String> applicationProtocols = Collections.emptyList();
 
@@ -84,6 +92,11 @@ public Builder portNumber(final int portNumber) {
             return this;
         }
 
+        public Builder portPropertyName(final String portPropertyName) {
+            this.portPropertyName = portPropertyName;
+            return this;
+        }
+
         public Builder transportProtocol(final TransportProtocol transportProtocol) {
             this.transportProtocol = transportProtocol;
             return this;