From 63c7d1fcd02752086b5deedffba4f463c32878d4 Mon Sep 17 00:00:00 2001
From: Dave Parker <dave.x.parker@gmail.com>
Date: Fri, 29 Aug 2014 22:19:47 +0000
Subject: [PATCH] Added a getLabels() method to the explicit.Model hierarchty
 (from Joachim Klein).

git-svn-id: https://www.prismmodelchecker.org/svn/prism/prism/trunk@9156 bbc10eb1-c90d-0410-af57-cb519fbb1720
---
 prism/src/explicit/Model.java          | 7 +++++++
 prism/src/explicit/ModelExplicit.java  | 7 +++++++
 prism/src/explicit/SubNondetModel.java | 6 ++++++
 3 files changed, 20 insertions(+)

diff --git a/prism/src/explicit/Model.java b/prism/src/explicit/Model.java
index 6980bbb2..fbdd2362 100644
--- a/prism/src/explicit/Model.java
+++ b/prism/src/explicit/Model.java
@@ -30,6 +30,7 @@ import java.io.File;
 import java.util.BitSet;
 import java.util.Iterator;
 import java.util.List;
+import java.util.Set;
 
 import parser.State;
 import parser.Values;
@@ -124,6 +125,12 @@ public interface Model
 	 */
 	public BitSet getLabelStates(String name);
 	
+	/**
+	 * Get the labels that are (optionally) stored.
+	 * Returns an empty set if there are no labels.
+	 */
+	public Set<String> getLabels();
+	
 	/**
 	 * Get the total number of transitions in the model.
 	 */
diff --git a/prism/src/explicit/ModelExplicit.java b/prism/src/explicit/ModelExplicit.java
index 76ea8109..35cf5ee1 100644
--- a/prism/src/explicit/ModelExplicit.java
+++ b/prism/src/explicit/ModelExplicit.java
@@ -31,6 +31,7 @@ import java.util.ArrayList;
 import java.util.BitSet;
 import java.util.List;
 import java.util.Map;
+import java.util.Set;
 import java.util.TreeMap;
 import java.util.TreeSet;
 
@@ -262,6 +263,12 @@ public abstract class ModelExplicit implements Model
 		return labels.get(name);
 	}
 
+	@Override
+	public Set<String> getLabels()
+	{
+		return labels.keySet();
+	}
+	
 	@Override
 	public abstract int getNumTransitions();
 
diff --git a/prism/src/explicit/SubNondetModel.java b/prism/src/explicit/SubNondetModel.java
index 1b2ab2a0..409b1046 100644
--- a/prism/src/explicit/SubNondetModel.java
+++ b/prism/src/explicit/SubNondetModel.java
@@ -34,6 +34,7 @@ import java.util.HashMap;
 import java.util.Iterator;
 import java.util.List;
 import java.util.Map;
+import java.util.Set;
 
 import parser.State;
 import parser.Values;
@@ -172,6 +173,11 @@ public class SubNondetModel implements NondetModel
 	{
 		throw new UnsupportedOperationException();
 	}
+	
+	@Override
+	public Set<String> getLabels() {
+		throw new UnsupportedOperationException();
+	}
 
 	@Override
 	public BitSet getLabelStates(String name)