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// **********************************************************************
//
// Copyright (c) 2001
// ZeroC, Inc.
// Huntsville, AL, USA
//
// All Rights Reserved
//
// **********************************************************************
import Freeze.*;
public class Client
{
final static String progName = "test.Freeze.complex.Client";
private static void
test(boolean b)
{
if(!b)
{
throw new RuntimeException();
}
}
private static int
validate(DB db)
throws DBException
{
Complex.ComplexDict m = new Complex.ComplexDict(db);
try
{
Parser parser = new Parser();
System.out.print("testing database expressions... ");
java.util.Iterator p = m.entrySet().iterator();
while(p.hasNext())
{
java.util.Map.Entry e = (java.util.Map.Entry)p.next();
Complex.Key key = (Complex.Key)e.getKey();
//
// Verify the stored record is correct.
//
test(key.result == ((Complex.Node)e.getValue()).calc(null));
//
// Verify that the expression & result again.
//
Complex.Node root = parser.parse(key.expression);
test(root.calc(null) == key.result);
}
System.out.println("ok");
}
catch(ParseError e)
{
e.printStackTrace();
test(false);
}
return 0;
}
private static int
populate(DB db)
throws DBException
{
String[] expressions =
{
"2",
"10",
"2+(5*3)",
"5*(2+3)",
"10+(10+(20+(8*(2*(3*2+4+5+6)))))"
};
Complex.ComplexDict m = new Complex.ComplexDict(db);
try
{
Parser parser = new Parser();
System.out.print("populating the database... ");
for(int i = 0 ; i < expressions.length; ++i)
{
Complex.Node root = parser.parse(expressions[i]);
assert(root != null);
Complex.Key k = new Complex.Key();
k.expression = expressions[i];
k.result = root.calc(null);
m.put(k, root);
}
System.out.println("ok");
}
catch(ParseError e)
{
e.printStackTrace();
test(false);
}
return 0;
}
static void
usage(String name)
{
System.out.println("Usage: " + name + " [options] validate|populate");
System.out.println("Options:");
System.out.println("--dbdir Location of the database directory.");
}
private static int
run(String[] args, DB db)
throws DBException
{
//
// Register a factory for the node types.
//
Ice.Communicator communicator = db.getCommunicator();
Ice.ObjectFactory factory = new Complex.ObjectFactoryI();
communicator.addObjectFactory(factory, "::Complex::NumberNode");
communicator.addObjectFactory(factory, "::Complex::AddNode");
communicator.addObjectFactory(factory, "::Complex::MultiplyNode");
if(args.length != 0 && args[0].equals("populate"))
{
return populate(db);
}
if(args.length != 0 && args[0].equals("validate"))
{
return validate(db);
}
usage(progName);
return 0;
}
static public void
main(String[] args)
{
int status;
Ice.Communicator communicator = null;
DBEnvironment dbEnv = null;
DB db = null;
String dbEnvDir = "db";
try
{
//
// Scan for --dbdir command line argument.
//
int i = 0;
while(i < args.length)
{
if(args[i].equals("--dbdir"))
{
if(i +1 >= args.length)
{
usage(progName);
System.exit(1);
}
dbEnvDir = args[i+1];
dbEnvDir += "/";
dbEnvDir += "db";
//
// Consume arguments
//
String[] arr = new String[args.length - 2];
System.arraycopy(args, 0, arr, 0, i);
if(i < args.length - 2)
{
System.arraycopy(args, i + 2, arr, i, args.length - i - 2);
}
args = arr;
}
else
{
++i;
}
}
Ice.StringSeqHolder holder = new Ice.StringSeqHolder();
holder.value = args;
communicator = Ice.Util.initialize(holder);
args = holder.value;
dbEnv = Freeze.Util.initialize(communicator, dbEnvDir);
db = dbEnv.openDB("test", true);
status = run(args, db);
}
catch(Exception ex)
{
ex.printStackTrace();
System.err.println(ex);
status = 1;
}
if(db != null)
{
try
{
db.close();
}
catch(DBException ex)
{
System.err.println(progName + ": " + ex + ": " + ex.message);
status = 1;
}
dbEnv = null;
}
if(dbEnv != null)
{
try
{
dbEnv.close();
}
catch(DBException ex)
{
System.err.println(progName + ": " + ex + ": " + ex.message);
status = 1;
}
catch(Ice.LocalException ex)
{
System.err.println(progName + ": " + ex);
status = 1;
}
catch(Exception ex)
{
System.err.println(progName + ": unknown exception: " + ex);
status = 1;
}
dbEnv = null;
}
if(communicator != null)
{
try
{
communicator.destroy();
}
catch(Exception ex)
{
System.err.println(ex);
status = 1;
}
}
System.exit(status);
}
}
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