CS计算机代考程序代写 Java package rddl.solver.mdp;

package rddl.solver.mdp;

import java.util.HashMap;
import java.util.Map;

import dd.discrete.DD;

import util.CString;

// Action class for MDP definition
public class Action {

public DD _context;
public CString _csActionName;
public HashMap _hmStateVar2CPT = null; // Map of CPT ADDs
public HashMap _hmVarID2CPT = null; // Map of CPT ADDs
public int _reward = -1; // Action-specific reward function ADD

public Action(DD context, CString name,
HashMap cpts, Integer reward) {
_context = context;
_csActionName = name;
_hmStateVar2CPT = cpts;
_reward = reward;

// Create a second map by VarID (saves hash lookups in some cases)
_hmVarID2CPT = new HashMap();
for (Map.Entry me : _hmStateVar2CPT.entrySet()) {
Integer var_id = (Integer)context._hmVarName2ID.get(me.getKey()._string);
if (var_id == null) {
System.err.println(“ERROR in Action(): could not find var ID for ” + me.getKey());
System.exit(1);
}
_hmVarID2CPT.put(var_id, me.getValue());
}
}

public String toString() {
StringBuilder sb = new StringBuilder(_csActionName + “:\n”);
for (CString var : _hmStateVar2CPT.keySet())
sb.append(“- CPT for next state var ‘” + var + “‘\n” +
_context.printNode(_hmStateVar2CPT.get(var)) + “\n”);
sb.append(“- Reward: ” + _context.printNode(_reward) + “\n”);
return sb.toString();
}
}