File: [local] / OpenXM / src / OpenMath / OMproxy.java (download)
Revision 1.40, Wed Sep 13 06:44:55 2000 UTC (24 years ago) by tam
Branch: MAIN
CVS Tags: RELEASE_1_1_3 Changes since 1.39: +7 -7
lines
I changed package to ORG.openxm.tam.
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/**
* $OpenXM: OpenXM/src/OpenMath/OMproxy.java,v 1.40 2000/09/13 06:44:55 tam Exp $
*/
import ORG.openxm.tam.*;
import java.util.Stack;
import java.io.*;
public class OMproxy extends OpenXMserver{
private Stack stack = new Stack();
protected boolean debug = false;
final int version = 200006130;
public OMproxy(String hostname,int ControlPort,int DataPort){
super(hostname,ControlPort,DataPort);
}
public void computeProcess(OpenXMstream stream){
OM2OXM P = new OM2OXM();
debug("OMproxy started.");
try{
while(true){
try{
OXmessage message = stream.receive();
int ox_tag = message.getTag();
switch(ox_tag){
case OXmessage.OX_COMMAND:
StackMachine((SM)message.getBody(),stream);
break;
case OXmessage.OX_DATA:
stack.push(message.getBody());
debug("push: "+ stack.peek());
break;
}
}catch(RuntimeException e){
System.err.println(e.getMessage());
e.printStackTrace();
debug("error occured. stack was cleared.");
stack = new Stack();
}
}
}catch(IOException e){
System.err.println(e.getMessage());
e.printStackTrace();
System.err.println("error occured, and recovering processes seems to be impossible.");
}catch(Exception e){
System.err.println(e.getMessage());
e.printStackTrace();
System.err.println("error occured, and recovering processes seems to be impossible.");
}finally{
System.out.println("breaking...");
}
}
/*
public void stop(){
System.out.println("OMproxy Stoping...");
synchronized(ox){
//this.stop();
while(!stack.empty()){
stack.pop();
}
System.out.println("OMproxy Stopped");
}
}
*/
private void SM_popCMO(OpenXMstream stream) throws java.io.IOException{
try{
if(stack.empty()){
stream.send(new CMO_NULL());
}else{
debug("sending CMO: "+ stack.peek());
stream.send((CMO)stack.pop());
debug("test");
}
}catch(MathcapViolation e){
try{
stream.send(new CMO_ERROR2(new CMO_STRING("MathcapViolation: "+
e.getMessage())));
}catch(MathcapViolation tmp){}
}
}
private void SM_executeFunction() throws java.io.IOException{
String function_name;
CMO[] argv;
int argc;
if(!(stack.peek() instanceof CMO_STRING)){
stack.push(new CMO_ERROR2(new CMO_NULL()));
return;
}
function_name = ((CMO_STRING)stack.pop()).getString();
argc = ((CMO_INT32)stack.pop()).intValue();
argv = new CMO[argc];
for(int i=0;i<argc;i++){
argv[i] = (CMO)stack.pop();
}
if(argc != 1){
stack.push(new CMO_ERROR2(new CMO_NULL()));
return;
}
if(function_name.equals("OMXML2CMO")){
stack.push(OMXML2CMO(argv[0]));
return;
}else if(function_name.equals("CMO2OMXML")){
stack.push(CMO2OMXML(argv[0]));
return;
}
stack.push(new CMO_ERROR2(new CMO_NULL()));
return;
}
private void SM_mathcap(OpenXMstream stream) throws java.io.IOException{
CMO[] mathcap = new CMO[3];
{
CMO[] list = {new CMO_INT32(version),
new CMO_STRING("Ox_system=OMproxy.class"),
new CMO_STRING("Version=0."+ version),
new CMO_STRING("HOSTTYPE=JAVA")};
mathcap[0] = new CMO_LIST(list);
}
{
CMO[] list = {new CMO_INT32(SM.SM_popCMO),
new CMO_INT32(SM.SM_executeFunction),
new CMO_INT32(SM.SM_mathcap),
new CMO_INT32(SM.SM_setMathCap),
new CMO_INT32(SM.SM_control_kill),
new CMO_INT32(SM.SM_control_reset_connection)};
mathcap[1] = new CMO_LIST(list);
}
{
CMO[] CMOFormat = {new CMO_INT32(CMO.NULL),
new CMO_INT32(CMO.INT32),
new CMO_INT32(CMO.STRING),
new CMO_INT32(CMO.LIST),
new CMO_INT32(CMO.MONOMIAL32),
new CMO_INT32(CMO.ZZ),
new CMO_INT32(CMO.QQ),
new CMO_INT32(CMO.ZERO),
new CMO_INT32(CMO.DMS_GENERIC),
new CMO_INT32(CMO.RECURSIVE_POLYNOMIAL),
new CMO_INT32(CMO.DISTRIBUTED_POLYNOMIAL),
new CMO_INT32(CMO.POLYNOMIAL_IN_ONE_VARIABLE),
new CMO_INT32(CMO.BIGFLOAT),
new CMO_INT32(CMO.INDETERMINATE),
new CMO_INT32(CMO.TREE)};
CMO[] DataFormat1 = {new CMO_INT32(OXmessage.OX_DATA),
new CMO_LIST(CMOFormat)};
CMO[] list = {new CMO_LIST(DataFormat1)};
mathcap[2] = new CMO_LIST(list);
}
stack = new Stack();
stack.push(new CMO_MATHCAP(new CMO_LIST(mathcap)));
debug("push: "+ stack.peek());
}
private void SM_setMathCap(OpenXMstream stream)
throws java.io.IOException{
Object mathcap = stack.pop();
if(mathcap instanceof CMO_MATHCAP){
stack.push(new CMO_ERROR2(new CMO_NULL()));
}
stream.setMathCap((CMO_MATHCAP)mathcap);
}
private void StackMachine(SM mesg,OpenXMstream stream)
throws java.io.IOException{
debug("receive: "+mesg);
switch(mesg.getCode()){
case SM.SM_popCMO:
SM_popCMO(stream);
break;
case SM.SM_executeFunction:
SM_executeFunction();
break;
case SM.SM_mathcap:
SM_mathcap(stream);
break;
case SM.SM_setMathCap:
SM_setMathCap(stream);
break;
default:
System.out.println("received "+ mesg);
}
}
private CMO CMO2OMXML(CMO obj){
String str;
try{
str = OM2OXM.CMO2OM(obj);
}catch(NumberFormatException e){
debug("CMO2OMXML occuered error in trans");
return new CMO_ERROR2(new CMO_STRING(e.toString()));
}
return new CMO_STRING(str);
}
private CMO OMXML2CMO(CMO obj){
OM2OXM trans = new OM2OXM();
//StringBufferInputStream stream;
ByteArrayInputStream stream;
CMO ret;
debug("OMXML2CMO called: "+obj);
if(!(obj instanceof CMO_STRING)){
return new CMO_ERROR2(new CMO_STRING("It's not CMO_STRING."));
}
try{
stream = new ByteArrayInputStream(((CMO_STRING)obj).getString().getBytes());
ret = trans.parse(stream);
}catch(IOException e){
debug("OMXML2CMO occuered error in trans");
return new CMO_ERROR2(new CMO_STRING(e.toString()));
}catch(NumberFormatException e){
debug("OMXML2CMO occuered error in trans");
return new CMO_ERROR2(new CMO_STRING(e.toString()));
}
debug("push: "+ret);
return ret;
}
private void debug(String str){
if(debug){
System.err.println(str);
}
}
private static String usage(){
String ret = "";
ret += "usage\t: java OMproxy [options]\n";
ret += "options\t:\n";
ret += "\t -h \t show this message\n";
ret += "\t -host hostname \t (default localhost)\n";
ret += "\t -data port \t (default 1300)\n";
ret += "\t -control port \t (default 1200)\n";
ret += "\t -insecure \t this version ignore this option\n";
ret += "\t -debug \t display debug messages\n";
return ret;
}
public static void main(String[] argv){
String hostname = "localhost";
int ControlPort = 1200, DataPort = 1300;
OpenXMserver ox;
for(int i=0;i<argv.length;i++){
if(argv[i].equals("-h")){
System.out.println("");
System.exit(0);
}else if(argv[i].equals("-host")){
hostname = argv[++i];
}else if(argv[i].equals("-data")){
DataPort = Integer.valueOf(argv[++i]).intValue();
}else if(argv[i].equals("-control")){
ControlPort = Integer.valueOf(argv[++i]).intValue();
}else{
System.err.println("unknown option :"+ argv[i]);
System.exit(1);
}
}
//ox = new OpenXMserver(hostname,ControlPort,DataPort);
ox = new OMproxy(hostname,ControlPort,DataPort);
/*
try{
}catch(java.net.UnknownHostException e){
System.err.println("host unknown.");
System.err.println(e.getMessage());
return;
}catch(IOException e){
System.err.println("connection failed.");
System.err.println("IOException occuer !!");
System.err.println(e.getMessage());
return;
}
*/
ox.start();
System.out.println("breaking...");
}
}