From 53b1ec3def7600fc051772cf2d245c9837e7b4d3 Mon Sep 17 00:00:00 2001
From: Dave Parker <dave.x.parker@gmail.com>
Date: Fri, 23 May 2008 07:42:52 +0000
Subject: [PATCH] Added PrismStaTra tool.

git-svn-id: https://www.prismmodelchecker.org/svn/prism/prism/trunk@789 bbc10eb1-c90d-0410-af57-cb519fbb1720
---
 prism/src/prism/PrismStaTra.java | 147 +++++++++++++++++++++++++++++++
 1 file changed, 147 insertions(+)
 create mode 100644 prism/src/prism/PrismStaTra.java

diff --git a/prism/src/prism/PrismStaTra.java b/prism/src/prism/PrismStaTra.java
new file mode 100644
index 00000000..9766e63f
--- /dev/null
+++ b/prism/src/prism/PrismStaTra.java
@@ -0,0 +1,147 @@
+//==============================================================================
+//	
+//	Copyright (c) 2002-
+//	Authors:
+//	* Dave Parker <david.parker@comlab.ox.ac.uk> (University of Oxford, formerly University of Birmingham)
+//	
+//------------------------------------------------------------------------------
+//	
+//	This file is part of PRISM.
+//	
+//	PRISM is free software; you can redistribute it and/or modify
+//	it under the terms of the GNU General Public License as published by
+//	the Free Software Foundation; either version 2 of the License, or
+//	(at your option) any later version.
+//	
+//	PRISM is distributed in the hope that it will be useful,
+//	but WITHOUT ANY WARRANTY; without even the implied warranty of
+//	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//	GNU General Public License for more details.
+//	
+//	You should have received a copy of the GNU General Public License
+//	along with PRISM; if not, write to the Free Software Foundation,
+//	Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+//	
+//==============================================================================
+
+package prism;
+
+import java.io.*;
+import java.util.ArrayList;
+
+// Small utility to merge PRISM states and transition files
+
+public class PrismStaTra
+{
+	// files to read in from
+	private File statesFile;
+	private File transFile;
+	
+	// states info
+	private ArrayList<String> states;
+	
+	public PrismStaTra(File sf, File tf)
+	{
+		statesFile = sf;
+		transFile = tf;
+	}
+	
+	// Read info about reachable state space from file and store string
+	
+	public void readStatesFromFile() throws PrismException
+	{
+		BufferedReader in;
+		String s, ss[];
+		int lineNum = 0;
+		
+		// create arrays for explicit state storage
+		states = new ArrayList<String>();
+		try {
+			// open file for reading
+			in = new BufferedReader(new FileReader(statesFile));
+			// skip first line
+			in.readLine(); lineNum = 1;
+			// read remaining lines
+			s = in.readLine(); lineNum++;
+			while (s != null) {
+				s = s.trim();
+				ss = s.split(":");
+				//i = Integer.parseInt(ss[0]);
+				states.add(ss[1]);
+				s = in.readLine(); lineNum++;
+			}
+			// close file
+			in.close();
+		}
+		catch (IOException e) {
+			throw new PrismException("File I/O error reading from \"" + statesFile + "\"");
+		}
+		catch (NumberFormatException e) {
+			throw new PrismException("Error detected at line " + lineNum + " of states file \"" + statesFile + "\"");
+		}
+	}
+
+	// Read info about transitions from file, insert state info and re-output
+	
+	private void readTransitionsFromFile() throws PrismException
+	{
+		BufferedReader in;
+		String s, ss[];
+		int r, c, lineNum = 0;
+		
+		try {
+			// open file for reading
+			in = new BufferedReader(new FileReader(transFile));
+			// skip first line
+			s = in.readLine(); System.out.println(s); lineNum = 1;
+			// read remaining lines
+			s = in.readLine(); lineNum++;
+			while (s != null) {
+				// parse line, split into parts
+				s = s.trim();
+				ss = s.split(" ");
+				// case for dtmcs/ctmcs...
+				if (ss.length == 3) {
+					r = Integer.parseInt(ss[0]);
+					c = Integer.parseInt(ss[1]);
+					System.out.println(states.get(r) + " " + states.get(c) + " " + ss[2]);
+				}
+				// case for mdps...
+				else if (ss.length == 4) {
+					r = Integer.parseInt(ss[0]);
+					c = Integer.parseInt(ss[2]);
+					System.out.println(states.get(r) + " " + ss[1] + " " + states.get(c) + " " + ss[3]);
+				}
+				// read next line
+				s = in.readLine(); lineNum++;
+			}
+			// close file
+			in.close();
+		}
+		catch (IOException e) {
+			throw new PrismException("File I/O error reading from \"" + transFile + "\"");
+		}
+		catch (NumberFormatException e) {
+			throw new PrismException("Error detected at line " + lineNum + " of transition matrix file \"" + transFile + "\"");
+		}
+	}
+	
+	public static void main(String args[])
+	{
+		if (args.length < 2) {
+			System.out.println("Error: Need two arguments (states and transitions file)");
+			System.exit(1);
+		}
+		try {
+			PrismStaTra pst = new PrismStaTra(new File(args[0]), new File(args[1]));
+			pst.readStatesFromFile();
+			pst.readTransitionsFromFile();
+		}
+		catch (PrismException e) {
+			System.out.println("Error: " + e.getMessage());
+			System.exit(1);
+		}
+	}
+}
+
+//------------------------------------------------------------------------------