work for [HER-1605] Refactor parameterizable policies out of frontier

* QueueAssignmentPolicy.java, URIAuthorityBasedQueueAssignmentPolicy.java
    move 'force-queue-assignment' setting from frontier to policy

engine/src/main/java/org/archive/crawler/frontier/QueueAssignmentPolicy.java

@@ -22,13 +22,33 @@ package org.archive.crawler.frontier;
 import java.io.Serializable;
 
 import org.archive.modules.CrawlURI;
+import org.archive.spring.HasKeyedProperties;
+import org.archive.spring.KeyedProperties;
 
 /**
  * Establishes a mapping from CrawlURIs to String keys (queue names).
  * 
  * @author gojomo
  */
-public abstract class QueueAssignmentPolicy implements Serializable {
+public abstract class QueueAssignmentPolicy implements Serializable, HasKeyedProperties {
+    
+    KeyedProperties kp = new KeyedProperties();
+    public KeyedProperties getKeyedProperties() {
+        return kp;
+    }
+    
+    /** queue assignment to force onto CrawlURIs; intended to be overridden */
+    {
+        setForceQueueAssignment("");
+    }
+    public String getForceQueueAssignment() {
+        return (String) kp.get("forceQueueAssignment");
+    }
+    public void setForceQueueAssignment(String forceQueueAssignment) {
+        kp.put("forceQueueAssignment",forceQueueAssignment);
+    }
+    
+    
     /** 
      * Get the String key (name) of the queue to which the 
      * CrawlURI should be assigned. 

engine/src/main/java/org/archive/crawler/frontier/URIAuthorityBasedQueueAssignmentPolicy.java

@@ -82,6 +82,10 @@ implements
             return curi.getClassKey();
         }
         
+        if(!StringUtils.isEmpty(getForceQueueAssignment())) {
+            return getForceQueueAssignment(); 
+        }
+        
         UURI basis = curi.getPolicyBasisUURI();
         String candidate = getCoreKey(basis);