/*
 * This program 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.
 *
 * This program 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 PURPOUSE. See the GNU
 * General Public License for more details.
 *
 * You should have recieved a copy of the GNU General Public License
 * along with this program; if not write to the Free Software
 * Foundation, inc., 59 Temple Place, Suite 330, Boston MA 02111-1307
 * USA
 */

package run.readers;

import run.Constraint;
import run.Controlset;
import run.Element;
import run.Load;
import run.Material;
import run.ModifiedStreamTokenizer;
import run.Node;
import run.Reader;
import run.RplVector;
import run.Token;
import run.TrackWriter;
import run.Tracker;
import run.Writer;
import run.materials.*;
import uka.karmi.rmi.RemoteException;

import java.io.*;
import java.text.ParseException;
import java.util.*;

import jp.lang.RemoteObject;

/**
 * Insert the type's description here. Creation date: (2001-08-20 22:51:18)
 *
 * @author: Jonas Forssell
 */
public class FembicReader extends Reader {
    private java.io.BufferedReader br;
    private java.lang.String filename;
    private java.lang.String[] keywords = {
        "TITLE", "CONTROLS", "ELEMENTS", "NODES", "LOADS", "CONSTRAINTS",
        "MATERIALS", "TRACKERS"
    };
    private boolean in_block = false;
    private java.io.StreamTokenizer str;
    private Node temporary_node;
    private Constraint temporary_constraint;
    private Load temporary_load;
    private boolean element_in_block = false;
    private boolean tracker_in_block = false;
    private boolean material_in_block = false;
    private java.lang.String current_element_type;
    private java.lang.String current_tracker_type;
    private java.lang.String current_constraint_type;
    private Controlset temporary_controlset;
    private boolean control_in_block;
    private boolean constraint_in_block;

    /**
     * This constructor immediately tries to open the file.
     */
    public FembicReader(String fn) {
        int i;

        // Remember this filename
        filename = new String(fn);
    }

    /**
     * Insert the method's description here. Creation date: (2001-08-20
     * 23:00:59)
     */
    public void close() {
        try {
            br.close();
        } catch (IOException ioe) {
            System.out.println(
                "An IOException has occurred when closing the indata file"
            );

            return;
        }
    }

    /**
     * This method reads the next constraint, sets up all the paremeters and
     * returns a handle to the constraint. Creation date: (26/08/01 %T)
     *
     * @return krockpackage.Node
     *
     * @exception java.text.ParseException The exception description.
     */
    public void getControlSet(Controlset temporary_controlset)
        throws IllegalArgumentException
    {
        // Assume the file has been opened
        // Go to beginning of constraint block, search until we find one.
        try {
            if (! control_in_block) {
                while (str.nextToken() != java.io.StreamTokenizer.TT_EOF) {
                    if (str.ttype == java.io.StreamTokenizer.TT_WORD) {
                        if (
                            str.sval.toUpperCase().equals("CONTROLS") &&
                            (str.nextToken() == str.TT_EOL)
                        ) {
                            control_in_block = true;

                            break;
                        }
                    }
                }
            }

            // We should now be in a block. If not, throw an error
            if (! control_in_block) {
                throw new java.text.ParseException(
                    "No controls block found or missing controls ", str.lineno()
                );
            }

            // Time to read the next control set
            // Assume that we are at the beginning of a line, so the first token should now be the control command
            // However, start with "cleaning" out extra lines etc.
            while (str.nextToken() == java.io.StreamTokenizer.TT_EOL) {
                ;
            }

            str.pushBack();

            // Now, loop this until we reach another block
            while (str.nextToken() != str.TT_EOF) {
                if (str.ttype == str.TT_WORD) {
                    if (! this.isAKeyword(str.sval)) {
                        // Go ahead and read this line. Feed it to the controlset.
                        str.pushBack();
                        temporary_controlset.parse_Fembic(
                            tokenize(str), str.lineno()
                        );
                    } else {
                        str.pushBack();

                        break;
                    }
                }
            }

            // Check all required data has been filled in
            temporary_controlset.checkIndata();

            // OK, everything read now. Lets end. The data has already been filled into the controlset given as an argument
            // so there is nothing to return.
        } catch (java.io.IOException e) {
            throw new IllegalArgumentException("IO error in when generating control set" + e.toString());
        } catch (ParseException e) {
            throw new IllegalArgumentException("Failed to generate control set, Parse exception" + e);
        } catch (IllegalArgumentException e) {
            throw new IllegalArgumentException(e.getMessage());
        }
    }

    /**
     * This method reads the next element from the indata file, sets up all the
     * parameters and creates the corresponding element object. Since the
     * parameters for each element may vary, it makes sence to keep all that
     * varability inside the definition of the element. Therefore, a new
     * method called parse_Fembic is designed for each element where the
     * checking and parsing of the variables are taken care of. A beauty of
     * object oriented design is that the parent class is returned  from this
     * method since the functionality really is irrelevant to the program from
     * here on. Creation date: (26/08/01 %T)
     *
     * @return krockpackage.Element
     *
     * @exception java.text.ParseException The exception description.
     */
    public Element getNextElement(
        RplVector materiallist, RplVector nodelist,
        RplVector loadlist, Hashtable nodetable
    )
        throws java.text.ParseException
    {
        boolean element_type_exists;
        int index;
        Material temp_constraint;
        Element temporary_element;
        String arg1;
        String arg2;
        String arg3;

        // Assume the file has been opened
        // If we are not in an element block, search until we find one.
        try {
            // Start with "cleaning" out extra lines etc.
            while (str.nextToken() == java.io.StreamTokenizer.TT_EOL) {
                ;
            }

            str.pushBack();

            // Now, assume we are reading an element line
            while (str.nextToken() != java.io.StreamTokenizer.TT_NUMBER) {
                str.pushBack();

                //This is not the case, so search until the next block of elements is found
                element_in_block = false;

                while (str.nextToken() != java.io.StreamTokenizer.TT_EOF) {
                    if (str.ttype == java.io.StreamTokenizer.TT_WORD) {
                        if (str.sval.toUpperCase().equals("ELEMENTS")) {
                            if (
                                str.nextToken() == java.io.StreamTokenizer.TT_WORD
                            ) {
                                if (str.sval.toUpperCase().equals("OF")) {
                                    ;
                                } else {
                                    throw new java.text.ParseException(
                                        "No 'OF' defined in element block header",
                                        str.lineno()
                                    );
                                }
                            }

                            if (
                                str.nextToken() == java.io.StreamTokenizer.TT_WORD
                            ) {
                                if (str.sval.toUpperCase().equals("TYPE")) {
                                    ;
                                } else {
                                    throw new java.text.ParseException(
                                        "No 'TYPE' defined in element block header",
                                        str.lineno()
                                    );
                                }
                            }

                            if (
                                str.nextToken() == java.io.StreamTokenizer.TT_WORD
                            ) {
                                current_element_type = new String(
                                        str.sval.toUpperCase()
                                    );
                            } else {
                                throw new java.text.ParseException(
                                    "Unknown type defined in element block header",
                                    str.lineno()
                                );
                            }

                            System.out.println("Element block found!");
                            element_in_block = true;

                            // Clear EOL
                            str.nextToken();

                            break;
                        }
                    }
                }
            }

            // We should now be in a block. If not, throw an error
            if (! element_in_block) {
                throw new java.text.ParseException(
                    "No elements block found or missing elements", str.lineno()
                );
            }

            // Parse the element number and put into the node object
            temporary_element = Element.getElementOfType_Fembic(
                    current_element_type
                );
            temporary_element.setNumber((int) str.nval);
            element_type_exists = true;

            // Continue and read the element parameters, assuming the format 'param = val'
            temporary_element.parse_Fembic(
                tokenize(str), str.lineno(), nodelist, materiallist, loadlist, nodetable
            );

            // Check all required data has been filled in
            temporary_element.checkIndata();

            /* Getting this far means that all parameters for the element is defined,
               so return the temporary element now
               Note the upcasting!!*/
            return (Element) temporary_element;

            // 
        } catch (java.io.IOException e) {
            throw new IllegalArgumentException("IO Exception when generating next element" + e.getMessage());
        } catch (ParseException e) {
            throw new IllegalArgumentException(
                e.getMessage() + " in line: " + (e.getErrorOffset() - 1)
            );
        } catch (IllegalArgumentException e) {
            throw new IllegalArgumentException(e.toString());
        }
    }

    /**
     * This method reads the next tracker from the indata file, sets up all the
     * parameters and creates the corresponding tracker object. Since the
     * parameters for each tracker may vary, it makes sence to keep all that
     * varability inside the definition of the tracker. Therefore, a new
     * method called parse_Fembic is designed for each tracker where the
     * checking and parsing of the variables are taken care of. A beauty of
     * object oriented design is that the parent class is returned  from this
     * method since the functionality really is irrelevant to the program from
     * here on. Creation date: (26/08/01 %T)
     *
     * @return krockpackage.Element
     *
     * @exception java.text.ParseException The exception description.
     */
    public Tracker getNextTracker(
        RplVector nodelist, RplVector elementlist
    )
        throws java.text.ParseException
    {
        boolean tracker_type_exists;
        int index;
        Tracker temporary_tracker;
        String arg1;
        String arg2;
        String arg3;

        // Assume the file has been opened
        // If we are not in a tracker block, search until we find one.
        try {
            // Start with "cleaning" out extra lines etc.
            while (str.nextToken() == java.io.StreamTokenizer.TT_EOL) {
                ;
            }

            str.pushBack();

            // Now, assume we are reading a tracker line
            while (str.nextToken() != java.io.StreamTokenizer.TT_NUMBER) {
                str.pushBack();

                //This is not the case, so search until the next block of trackers is found
                tracker_in_block = false;

                while (str.nextToken() != java.io.StreamTokenizer.TT_EOF) {
                    if (str.ttype == java.io.StreamTokenizer.TT_WORD) {
                        if (str.sval.toUpperCase().equals("TRACKERS")) {
                            if (
                                str.nextToken() == java.io.StreamTokenizer.TT_WORD
                            ) {
                                if (str.sval.toUpperCase().equals("OF")) {
                                    ;
                                } else {
                                    throw new java.text.ParseException(
                                        "No 'OF' defined in tracker block header",
                                        str.lineno()
                                    );
                                }
                            }

                            if (
                                str.nextToken() == java.io.StreamTokenizer.TT_WORD
                            ) {
                                if (str.sval.toUpperCase().equals("TYPE")) {
                                    ;
                                } else {
                                    throw new java.text.ParseException(
                                        "No 'TYPE' defined in tracker block header",
                                        str.lineno()
                                    );
                                }
                            }

                            if (
                                str.nextToken() == java.io.StreamTokenizer.TT_WORD
                            ) {
                                current_tracker_type = new String(
                                        str.sval.toUpperCase()
                                    );
                            } else {
                                throw new java.text.ParseException(
                                    "Unknown type defined in tracker block header",
                                    str.lineno()
                                );
                            }

                            System.out.println("Tracker block found!");
                            tracker_in_block = true;

                            // Clear EOL
                            str.nextToken();

                            break;
                        }
                    }
                }
            }

            // We should now be in a block. If not, throw an error
            if (! tracker_in_block) {
                throw new java.text.ParseException(
                    "No trackers block found or missing trackers", str.lineno()
                );
            }

            // Parse the tracker number and put into the tracker object
            temporary_tracker = Tracker.getTrackerOfType_Fembic(
                    current_tracker_type
                );
            temporary_tracker.setNumber((int) str.nval);
            tracker_type_exists = true;

            // Continue and read the tracker parameters, assuming the format 'param = val'
            temporary_tracker.parse_Fembic(
                tokenize(str), str.lineno(), nodelist, elementlist
            );

            // Check all required data has been filled in
            temporary_tracker.checkIndata();

            /* Getting this far means that all parameters for the tracker is defined,
               so return the temporary tracker now
               Note the upcasting!!*/
            return (Tracker) temporary_tracker;

            // 
        } catch (java.io.IOException e) {
            throw new IllegalArgumentException("IO Exception when reading Tracker" + e.getMessage());
        } catch (ParseException e) {
            throw new IllegalArgumentException(
                e.getMessage() + " in line: " + (e.getErrorOffset() - 1)
            );
        } catch (IllegalArgumentException e) {
            throw new IllegalArgumentException(e.getMessage());
        }
    }

    /**
     * This method reads the next constraint, sets up all the paremeters and
     * returns a handle to the constraint. Creation date: (26/08/01 %T)
     *
     * @return krockpackage.Node
     *
     * @exception java.text.ParseException The exception description.
     */
    public Constraint getNextConstraint(RplVector nodelist)
        throws java.text.ParseException
    {
        boolean constraint_type_exists;
        int index;
        Constraint temporary_constraint;
        String arg1;
        String arg2;
        String arg3;

        // Assume the file has been opened
        // If we are not in a tracker block, search until we find one.
        try {
            // Start with "cleaning" out extra lines etc.
            while (str.nextToken() == java.io.StreamTokenizer.TT_EOL) {
                ;
            }

            str.pushBack();

            // Now, assume we are reading a tracker line
            while (
                (str.nextToken() != java.io.StreamTokenizer.TT_WORD) ||
                this.isAKeyword(str.sval)
            ) {
                str.pushBack();

                //This is not the case, so search until the next block of trackers is found
                constraint_in_block = false;

                while (str.nextToken() != java.io.StreamTokenizer.TT_EOF) {
                    if (str.ttype == java.io.StreamTokenizer.TT_WORD) {
                        if (str.sval.toUpperCase().equals("CONSTRAINTS")) {
                            if (
                                str.nextToken() == java.io.StreamTokenizer.TT_WORD
                            ) {
                                if (str.sval.toUpperCase().equals("OF")) {
                                    ;
                                } else {
                                    throw new java.text.ParseException(
                                        "No 'OF' defined in constraint block header",
                                        str.lineno()
                                    );
                                }
                            }

                            if (
                                str.nextToken() == java.io.StreamTokenizer.TT_WORD
                            ) {
                                if (str.sval.toUpperCase().equals("TYPE")) {
                                    ;
                                } else {
                                    throw new java.text.ParseException(
                                        "No 'TYPE' defined in constraint block header",
                                        str.lineno()
                                    );
                                }
                            }

                            if (
                                str.nextToken() == java.io.StreamTokenizer.TT_WORD
                            ) {
                                current_constraint_type = new String(
                                        str.sval.toUpperCase()
                                    );
                            } else {
                                throw new java.text.ParseException(
                                    "Unknown type defined in constraint block header",
                                    str.lineno()
                                );
                            }

                            System.out.println("Constraint block found!");
                            constraint_in_block = true;

                            // Clear EOL
                            str.nextToken();

                            break;
                        }
                    }
                }
            }

            // We should now be in a block. If not, throw an error
            if (! constraint_in_block) {
                throw new java.text.ParseException(
                    "No constraint block found or missing constraints",
                    str.lineno()
                );
            }

            // Parse the tracker number and put into the tracker object
            temporary_constraint = Constraint.getConstraintOfType_Fembic(
                    current_constraint_type
                );
            temporary_constraint.setName(str.sval.toUpperCase().trim());
            constraint_type_exists = true;

            // Continue and read the tracker parameters, assuming the format 'param = val'
            temporary_constraint.parse_Fembic(
                tokenize(str), str.lineno(), nodelist
            );

            // Check all required data has been filled in
            temporary_constraint.checkIndata();

            /* Getting this far means that all parameters for the tracker is defined,
               so return the temporary tracker now
               Note the upcasting!!*/
            return (Constraint) temporary_constraint;

            // 
        } catch (java.io.IOException e) {
            throw new IllegalArgumentException("IO Exception when reading Constraint" + e.getMessage());
        } catch (ParseException e) {
            throw new IllegalArgumentException(
                e.getMessage() + " in line: " + (e.getErrorOffset() - 1)
            );
        } catch (IllegalArgumentException e) {
            throw new IllegalArgumentException(e.getMessage());
        }
    }

    /**
     * This method reads the next load, sets up all the paremeters and returns
     * a handle to the load. Creation date: (26/08/01 %T)
     *
     * @return krockpackage.Node
     *
     * @exception java.text.ParseException The exception description.
     */
    public Load getNextLoad(RplVector nodelist)
        throws java.text.ParseException
    {
        // Assume the file has been opened
        // If we are not in a load block, search until we find one.
        try {
            if (! in_block) {
                while (str.nextToken() != java.io.StreamTokenizer.TT_EOF) {
                    if (str.ttype == java.io.StreamTokenizer.TT_WORD) {
                        if (
                            str.sval.toUpperCase().equals("LOADS") &&
                            (str.nextToken() == str.TT_EOL)
                        ) {
                            in_block = true;

                            break;
                        }
                    }
                }
            }

            // We should now be in a block. If not, throw an error
            if (! in_block) {
                throw new java.text.ParseException(
                    "No loads block found or missing loads", str.lineno()
                );
            }

            // Time to read the next load set
            // Assume that we are at the beginning of a line, so the first token
            // should now be the load set name
            // However, start with "cleaning" out extra lines etc.
            while (str.nextToken() == java.io.StreamTokenizer.TT_EOL) {
                ;
            }

            // Now, check that we are reading the load name
            if (str.ttype != java.io.StreamTokenizer.TT_WORD) {
                throw new java.text.ParseException(
                    "No load name found", str.lineno()
                );
            }

            // Parse and put into the load object
            temporary_load = new Load();
            temporary_load.name = str.sval.toUpperCase();

            // Continue and read the parameters for the Load
            temporary_load.parse_Fembic(tokenize(str), str.lineno());

            // Check all required data has been filled in
            temporary_load.checkIndata();

            // OK, everything read now. Lets return the load
            return temporary_load;
        } catch (java.io.IOException e) {
            throw new IllegalArgumentException("IO Exception when reading Load" + e.getMessage());
        } catch (ParseException e) {
            throw new IllegalArgumentException(
                e.getMessage() + " in line: " + (e.getErrorOffset() - 1)
            );
        } catch (IllegalArgumentException e) {
            throw new IllegalArgumentException(e.getMessage());
        }
    }

    /**
     * This method reads the next material type, sets up the paremeters and
     * returns a handle Creation date: (26/08/01 %T)
     *
     * @return krockpackage.Material
     *
     * @exception java.text.ParseException The exception description.
     */
    public Material getNextMaterial()
        throws java.text.ParseException
    {
        boolean material_type_exists;
        int index;
        Material temporary_material;
        String arg1;
        String arg2;
        String arg3;
        double arg4;

        // Assume the file has been opened
        // If we are not in a material block, search until we find one.
        try {
            // Start with "cleaning" out extra lines etc.
            while (str.nextToken() == java.io.StreamTokenizer.TT_EOL) {
                ;
            }

            str.pushBack();

            // Now, assume we are reading a material line
            while (
                (str.nextToken() != java.io.StreamTokenizer.TT_WORD) ||
                this.isAKeyword(str.sval)
            ) {
                str.pushBack();

                //This is not the case, so search until the next block of elements is found
                material_in_block = false;

                while (str.nextToken() != java.io.StreamTokenizer.TT_EOF) {
                    if (str.ttype == java.io.StreamTokenizer.TT_WORD) {
                        if (str.sval.toUpperCase().equals("MATERIALS")) {
                            if (
                                str.nextToken() == java.io.StreamTokenizer.TT_WORD
                            ) {
                                if (str.sval.toUpperCase().equals("OF")) {
                                    ;
                                } else {
                                    throw new java.text.ParseException(
                                        "No 'OF' defined in material block header",
                                        str.lineno()
                                    );
                                }
                            }

                            if (
                                str.nextToken() == java.io.StreamTokenizer.TT_WORD
                            ) {
                                if (str.sval.toUpperCase().equals("TYPE")) {
                                    ;
                                } else {
                                    throw new java.text.ParseException(
                                        "No 'TYPE' defined in material block header",
                                        str.lineno()
                                    );
                                }
                            }

                            if (
                                str.nextToken() == java.io.StreamTokenizer.TT_WORD
                            ) {
                                current_element_type = new String(
                                        str.sval.toUpperCase()
                                    );
                            } else {
                                throw new java.text.ParseException(
                                    "Unknown type defined in element block header",
                                    str.lineno()
                                );
                            }

                            System.out.println("Block found!");
                            material_in_block = true;

                            // Clear EOL
                            str.nextToken();

                            break;
                        }
                    }
                }
            }

            // We should now be in a block. If not, throw an error
            if (! material_in_block) {
                throw new java.text.ParseException(
                    "No materials block found or missing materials",
                    str.lineno()
                );
            }

            // Parse the material type and create the suitable material object
            temporary_material = Material.getMaterialOfType_Fembic(current_element_type);
            temporary_material.setName(str.sval.toUpperCase());
            material_type_exists = true;

            // Now, feed the parameters to the object
            temporary_material.parse_Fembic(tokenize(str), str.lineno());

            // Check all required data has been filled in
            temporary_material.checkIndata();

            /* Getting this far means that all parameters for the element is defined,
               so return the temporary element now
               Note the upcasting!!*/
            return (Material) temporary_material;

            // 
        } catch (java.io.IOException e) {
            throw new IllegalArgumentException("IO Exception when reading Material" + e.getMessage());
        } catch (ParseException e) {
            throw new IllegalArgumentException(
                e.getMessage() + " in line: " + (e.getErrorOffset() - 1)
            );
        } catch (IllegalArgumentException e) {
            throw new IllegalArgumentException(e.getMessage());
        }
    }

    /**
     * This method reads the next node, sets up all the paremeters and returns
     * a handle to the node. Creation date: (26/08/01 %T)
     *
     * @return krockpackage.Node
     *
     * @exception java.text.ParseException The exception description.
     */
    public Node getNextNode(
        RplVector constraintlist, RplVector loadlist
    )
        throws java.text.ParseException
    {
        int index;
        Constraint temp_constraint;
        Load temp_load;

        // Assume the file has been opened
        // If we are not in a node block, search until we find one.
        try {
            // Start with "cleaning" out extra lines etc.
            while (str.nextToken() == java.io.StreamTokenizer.TT_EOL) {
                ;
            }

            str.pushBack();

            // Now, check that we are reading the node number
            while (
                (str.nextToken() != java.io.StreamTokenizer.TT_NUMBER) &&
                (str.ttype != java.io.StreamTokenizer.TT_EOF)
            ) {
                // This is not the case. Now search until next block of nodes is found and try again.
                in_block = false;
                str.pushBack();

                while (str.nextToken() != java.io.StreamTokenizer.TT_EOF) {
                    if (str.ttype == java.io.StreamTokenizer.TT_WORD) {
                        if (
                            str.sval.toUpperCase().equals("NODES") &&
                            (str.nextToken() == str.TT_EOL)
                        ) {
                            in_block = true;

                            break;
                        }
                    }
                }
            }

            // We should now be in a block. If not, throw an error
            if (! in_block) {
                throw new java.text.ParseException(
                    "No nodes block found or missing nodes", str.lineno()
                );
            }

            // Time to read the next node element
            // Parse and put into the node object
            
            temporary_node = new Node();
            temporary_node.setNumber((int) str.nval);

            // Continue and read the X coordinates for the node
            temporary_node.parse_Fembic(
                tokenize(str), str.lineno(), constraintlist, loadlist
            );

            // Check all required data has been filled in
            temporary_node.checkIndata();

            return temporary_node;
        } catch (java.io.IOException e) {
            throw new IllegalArgumentException(e.getMessage());
        } catch (ParseException e) {
            throw new IllegalArgumentException(
                e.getMessage() + " in line: " + (e.getErrorOffset() - 1)
            );
        } catch (IllegalArgumentException e) {
            throw new IllegalArgumentException(e.getMessage());
        }
    }

    /**
     * Insert the method's description here. Creation date: (26/08/01 %T)
     *
     * @param param java.lang.String
     *
     * @return boolean
     */
    private boolean isAKeyword(String param) {
        int i;

        for (i = 0; i < keywords.length; i++) {
            if (keywords[i].equals(param.toUpperCase())) {
                return true;
            }
        }

        return false;
    }

    /**
     * Insert the method's description here. Creation date: (28/08/01 %T)
     *
     * @return int
     *
     * @exception java.text.ParseException The exception description.
     */
    public int numberOfConstraints()
        throws java.text.ParseException
    {
        int noc = 0;

        // Open file and start reading from beginning
        this.open();

        try {
            // Start examining the file and continue until end of file is reached
            while (str.nextToken() != str.TT_EOF) {
                // check token for the key word "constraints"
                if (str.ttype == str.TT_WORD) {
                    if (str.sval.toUpperCase().equals("CONSTRAINTS")) {
                        while (str.nextToken() != str.TT_EOL) {
                            ;
                        }

                        str.pushBack();

                        while (str.nextToken() != str.TT_EOF) {
                            // Repeat this until a keyword is found. That means block is finished. 
                            if (str.ttype == str.TT_WORD) {
                                if (this.isAKeyword(str.sval)) {
                                    str.pushBack();

                                    break;
                                }
                            }

                            /* getting this far means we are now about to read trackers
                               The first token should be a word if a tracker is defined */
                            if (str.ttype == str.TT_WORD) {
                                noc++;

                                // Move to end of line
                                while (
                                    (str.nextToken() != str.TT_EOL) &&
                                    (str.ttype != str.TT_EOF)
                                ) {
                                    ;
                                }
                            }
                        }
                    }
                }
            }

            System.out.println("Found" + noc + "constraints");
        } catch (IOException ioe) {
            System.out.println(
                "IOException when reading a constraintline from indata file"
            );
            this.close();

            return -1;
        }

        this.close();

        return noc;
    }

    /**
     * Insert the method's description here. Creation date: (28/08/01 %T)
     *
     * @return int
     *
     * @exception java.text.ParseException The exception description.
     */
    public int numberOfControls()
        throws java.text.ParseException
    {
        int noc = 0;

        // Open file and start reading from beginning
        this.open();

        try {
            // Start examining the file and continue until end of file is reached
            while (str.nextToken() != str.TT_EOF) {
                // check token for the key word "CONTROLS"
                if (str.ttype == str.TT_WORD) {
                    if (
                        str.sval.toUpperCase().equals("CONTROLS") &&
                        (str.nextToken() == str.TT_EOL)
                    ) {
                        while (str.nextToken() != str.TT_EOF) {
                            // getting this far means we are now about to read constraints
                            // The first token should be a constraint name if an element is defined
                            if (str.ttype == str.TT_WORD) {
                                if (! this.isAKeyword(str.sval)) {
                                    noc++;

                                    // Move to end of line
                                    while (
                                        (str.nextToken() != str.TT_EOL) &&
                                        (str.ttype != str.TT_EOF)
                                    ) {
                                        ;
                                    }
                                } else {
                                    str.pushBack();

                                    break;
                                }
                            }
                        }
                    }
                }
            }

            System.out.println("Found" + noc + "controls");
        } catch (IOException ioe) {
            System.out.println(
                "IOException when reading a line from indata file"
            );
            this.close();

            return -1;
        }

        if (noc == 0) {
            this.close();
            throw new java.text.ParseException("No controls found", 0);
        }

        this.close();

        return noc;
    }

    /**
     * This method examines the indata file to determine the number of elements
     * supplied there. Note that there may be several different types of
     * elements, each under a new headline. Example: elements of type beam 1
     * nodes=[1,2] A=5.0 ..... elements of type rod 1 nodes=[2,3] A=3.2 .....
     * Creation date: (21/08/01 %T)
     *
     * @return int
     */
    public int numberOfElements()
        throws java.text.ParseException
    {
        int noe = 0;

        // Open file and start reading from beginning
        this.open();

        try {
            // Start examining the file and continue until end of file is reached
            while (str.nextToken() != str.TT_EOF) {
                // check token for the key word "elements"
                if (str.ttype == str.TT_WORD) {
                    if (str.sval.toUpperCase().equals("ELEMENTS")) {
                        while (str.nextToken() != str.TT_EOL) {
                            ;
                        }

                        str.pushBack();

                        while (str.nextToken() != str.TT_EOF) {
                            // Repeat this until a keyword is found. That means block is finished. 
                            if (str.ttype == str.TT_WORD) {
                                if (this.isAKeyword(str.sval)) {
                                    str.pushBack();

                                    break;
                                }
                            }

                            /* getting this far means we are now about to read elements
                               The first token should be a line number if an element is defined */
                            if (str.ttype == str.TT_NUMBER) {
                                noe++;

                                // Move to end of line
                                while (
                                    (str.nextToken() != str.TT_EOL) &&
                                    (str.ttype != str.TT_EOF)
                                ) {
                                    ;
                                }
                            }
                        }
                    }
                }
            }

            System.out.println("Found" + noe + "elements");
        } catch (IOException ioe) {
            System.out.println(
                "IOException when reading a line from indata file"
            );
            this.close();

            return -1;
        }

        if (noe == 0) {
            this.close();
            throw new java.text.ParseException("No elements found", 0);
        }

        this.close();

        return noe;
    }

    /**
     * This method examines the indata file to determine the number of trackers
     * supplied there. Note that there may be several different types of
     * trackers, each under a new headline. Example: trackers of type
     * sectionforce 1 nodes = [1,2,3]  filename = ..... trackers of type
     * sectionmoment 1 nodes = [2,3] filename = .....         Creation date:
     * (21/08/01 %T)
     *
     * @return int
     */
    public int numberOfTrackers()
        throws java.text.ParseException
    {
        int not = 0;

        // Open file and start reading from beginning
        this.open();

        try {
            // Start examining the file and continue until end of file is reached
            while (str.nextToken() != str.TT_EOF) {
                // check token for the key word "trackers"
                if (str.ttype == str.TT_WORD) {
                    if (str.sval.toUpperCase().equals("TRACKERS")) {
                        while (str.nextToken() != str.TT_EOL) {
                            ;
                        }

                        str.pushBack();

                        while (str.nextToken() != str.TT_EOF) {
                            // Repeat this until a keyword is found. That means block is finished. 
                            if (str.ttype == str.TT_WORD) {
                                if (this.isAKeyword(str.sval)) {
                                    str.pushBack();

                                    break;
                                }
                            }

                            /* getting this far means we are now about to read trackers
                               The first token should be a line number if a tracker is defined */
                            if (str.ttype == str.TT_NUMBER) {
                                not++;

                                // Move to end of line
                                while (
                                    (str.nextToken() != str.TT_EOL) &&
                                    (str.ttype != str.TT_EOF)
                                ) {
                                    ;
                                }
                            }
                        }
                    }
                }
            }

            System.out.println("Found" + not + "trackers");
        } catch (IOException ioe) {
            System.out.println(
                "IOException when reading a trackerline from indata file"
            );
            this.close();

            return -1;
        }

        this.close();

        return not;
    }

    /**
	 * Insert the method's description here. Creation date: (28/08/01 %T)
	 *
	 * @return int
	 *
	 * @exception java.text.ParseException The exception description.
	 */
	public int numberOfGroups()
	    throws java.text.ParseException
	{
	    int noc = 0;
	
	    // Open file and start reading from beginning
	    this.open();
	
	    try {
	        // Start examining the file and continue until end of file is reached
	        while (str.nextToken() != str.TT_EOF) {
	            // check token for the key word "loads"
	            if (str.ttype == str.TT_WORD) {
	                if (
	                    str.sval.toUpperCase().equals("GROUPS") &&
	                    (str.nextToken() == str.TT_EOL)
	                ) {
	                    while (str.nextToken() != str.TT_EOF) {
	                        // getting this far means we are now about to read groups
	                        // The first token should be a group set name if a set is defined
	                        if (str.ttype == str.TT_WORD) {
	                            if (! this.isAKeyword(str.sval)) {
	                                noc++;
	
	                                // Move to end of line
	                                while (
	                                    (str.nextToken() != str.TT_EOL) &&
	                                    (str.ttype != str.TT_EOF)
	                                ) {
	                                    ;
	                                }
	                            } else {
	                                str.pushBack();
	
	                                break;
	                            }
	                        }
	                    }
	                }
	            }
	        }
	
	        System.out.println("Found" + noc + "groups");
	    } catch (IOException ioe) {
	        System.out.println(
	            "IOException when reading a line from indata file"
	        );
	        this.close();
	
	        return -1;
	    }
	
	    this.close();
	
	    return noc;
	}

	/**
     * Insert the method's description here. Creation date: (28/08/01 %T)
     *
     * @return int
     *
     * @exception java.text.ParseException The exception description.
     */
    public int numberOfLoads()
        throws java.text.ParseException
    {
        int noc = 0;

        // Open file and start reading from beginning
        this.open();

        try {
            // Start examining the file and continue until end of file is reached
            while (str.nextToken() != str.TT_EOF) {
                // check token for the key word "loads"
                if (str.ttype == str.TT_WORD) {
                    if (
                        str.sval.toUpperCase().equals("LOADS") &&
                        (str.nextToken() == str.TT_EOL)
                    ) {
                        while (str.nextToken() != str.TT_EOF) {
                            // getting this far means we are now about to read loads
                            // The first token should be a load set name if a set is defined
                            if (str.ttype == str.TT_WORD) {
                                if (! this.isAKeyword(str.sval)) {
                                    noc++;

                                    // Move to end of line
                                    while (
                                        (str.nextToken() != str.TT_EOL) &&
                                        (str.ttype != str.TT_EOF)
                                    ) {
                                        ;
                                    }
                                } else {
                                    str.pushBack();

                                    break;
                                }
                            }
                        }
                    }
                }
            }

            System.out.println("Found" + noc + "loads");
        } catch (IOException ioe) {
            System.out.println(
                "IOException when reading a line from indata file"
            );
            this.close();

            return -1;
        }

        this.close();

        return noc;
    }

    /**
     * Insert the method's description here. Creation date: (21/08/01 %T)
     *
     * @return int
     */
    public int numberOfMaterials()
        throws java.text.ParseException
    {
        int nom = 0;

        // Open file and start reading from beginning
        this.open();

        try {
            // Start examining the file and continue until end of file is reached
            while (str.nextToken() != str.TT_EOF) {
                // check token for the key word "materials"
                if (str.ttype == str.TT_WORD) {
                    if (str.sval.toUpperCase().equals("MATERIALS")) {
                        // Clean out line
                        while (str.nextToken() != str.TT_EOL) {
                            ;
                        }

                        // go in to block
                        while (str.nextToken() != str.TT_EOF) {
                            // getting this far means we are now about to read elements
                            // The first token should be a material name if an element is defined
                            if (str.ttype == str.TT_WORD) {
                                if (! this.isAKeyword(str.sval)) {
                                    nom++;

                                    // Move to end of line
                                    while (
                                        (str.nextToken() != str.TT_EOL) &&
                                        (str.ttype != str.TT_EOF)
                                    ) {
                                        ;
                                    }
                                } else {
                                    str.pushBack();

                                    break;
                                }
                            }
                        }
                    }
                }
            }

            System.out.println("Found" + nom + "materials");
        } catch (IOException ioe) {
            System.out.println(
                "IOException when reading a line from indata file"
            );
            this.close();

            return -1;
        }

        if (nom == 0) {
            this.close();
            throw new java.text.ParseException("No materials found", 0);
        }

        this.close();

        return nom;
    }

    /**
     * Insert the method's description here. Creation date: (21/08/01 %T)
     *
     * @return int
     */
    public int numberOfNodes()
        throws java.text.ParseException
    {
        int non = 0;

        // Open file and start reading from beginning
        this.open();

        try {
            // Start examining the file and continue until end of file is reached
            while (str.nextToken() != str.TT_EOF) {
                // check token for the key word "nodes"
                if (str.ttype == str.TT_WORD) {
                    if (
                        str.sval.toUpperCase().equals("NODES") &&
                        (str.nextToken() == str.TT_EOL)
                    ) {
                        while (str.nextToken() != str.TT_EOF) {
                            // Repeat this until a keyword is found. That means block is finished. 
                            if (str.ttype == str.TT_WORD) {
                                if (this.isAKeyword(str.sval)) {
                                    break;
                                }
                            }

                            // getting this far means we are now about to read nodes
                            // The first token should be a line number if an element is defined
                            if (str.ttype == str.TT_NUMBER) {
                                non++;

                                // Move to end of line
                                while (
                                    (str.nextToken() != str.TT_EOL) &&
                                    (str.ttype != str.TT_EOF)
                                ) {
                                    ;
                                }
                            }
                        }
                    }
                }
            }

            System.out.println("Found" + non + "nodes");
        } catch (IOException ioe) {
            System.out.println(
                "IOException when reading a line from indata file"
            );
            this.close();

            return -1;
        }

        if (non == 0) {
            this.close();
            throw new java.text.ParseException("No nodes found", 0);
        }

        this.close();

        return non;
    }

    /**
     * This constructor immediately tries to open the file.
     */
    public void open() {
        FileReader fr;

        // Opening the file means that parameters should be set to zero
        in_block = false;
        control_in_block = false;
        constraint_in_block = false;
        element_in_block = false;

        // Try to open the indata file
        try {
            fr = new FileReader(filename);
        } catch (FileNotFoundException fnfe) {
            System.out.println("Fembic file does not exist");

            return;
        }

        try {
            br = new BufferedReader(fr);
        } catch (IllegalArgumentException ioe) {
            System.out.println(
                "An IllegalArgumentException has occurred when opening the indata file"
            );

            return;
        }

        str = new ModifiedStreamTokenizer(br);
    }

    /**
     * This method returns the writer to be used for the results
     */
    public Writer getWriter(
        RplVector nodelist, RplVector elementlist, Controlset control, RemoteObject[] cluster_nodes
    )
        throws RemoteException
    {
        Writer a;
        a = Writer.getWriterOfType_Fembic(
                control.getWriter(), nodelist, elementlist, cluster_nodes
            );

            a.checkIndata();

        return a;
    }

    /**
     * This method returns the Trackwriter to be used for the trackers
     */
    public TrackWriter getTrackWriter(RplVector trackerlist, Controlset control, RemoteObject[] cluster_nodes)
        throws RemoteException
    {
        TrackWriter a;
        a = TrackWriter.getTrackWriterOfType_Fembic(
                control.getTrackWriter(), trackerlist
				);

            a.checkIndata();

        return a;
    }

    /**
     * Overriding this routine to add some more features related to Fembic.
     */
    public Token[] tokenize(java.io.StreamTokenizer str)
        throws IOException
    {
        int i;
        double num;
        String temp;
        String temp1;
        String temp2;
        Vector v = new Vector();
        Token t;
        Token[] arr;

        // Start by reading all the words and numbers on the line into the p vector.
        while (
            (str.nextToken() != java.io.StreamTokenizer.TT_EOL) &&
            (str.ttype != java.io.StreamTokenizer.TT_EOF)
        ) {
            if (str.ttype == java.io.StreamTokenizer.TT_WORD) {
                v.add(new Token(str.sval.trim()));
            } else {
                v.add(new Token(str.nval));
            }
        }

        // Now, begin examining the vector for correct parsing.
        for (i = 0; i < v.size(); i++) {
            // Check if this token is a word.
            t = (Token) v.elementAt(i);

            if (t.is_a_word()) {
                temp = new String(t.getw());

                // This may be a beginning of a [ set. If so, search until next set if found.
                if (temp.startsWith("[") && ! temp.endsWith("]")) {
                    v.remove(i);

                    while (! temp.endsWith("]")) {
                        if (i >= v.size()) {
                            throw new IOException(
                                "IO Exception trying to find end ] of a parameter set in string\n"
                            );
                        }

                        t = (Token) v.elementAt(i);
                        v.remove(i);

                        if (t.is_a_number()) {
                            temp += new Double(t.getn()).toString();
                        } else {
                            temp += t.getw().trim();
                        }
                    }

                    v.insertElementAt(new Token(temp), i);
                } else
                // Check to see if there is an = sign in there (i.e. no spaces around the =)
                // If so, split up into three tokens and make the parser read them again.
                if ((temp.indexOf("=") != -1) && (temp.length() > 1)) {
                    v.remove(i);

                    if (temp.indexOf("=") != 0) {
                        v.insertElementAt(
                            new Token(temp.substring(0, temp.indexOf("="))), i
                        );
                    } else {
                        i--;
                    }

                    v.insertElementAt(new Token(new String("=")), i + 1);

                    if (temp.indexOf("=") != (temp.length() - 1)) {
                        v.insertElementAt(
                            new Token(
                                temp.substring(
                                    temp.indexOf("=") + 1, temp.length()
                                )
                            ), i + 2
                        );
                    }

                    i--;
                }
            } else
            // t is a number, leave it alone	
             {
            }
        }

        arr = new Token[v.size()];

        for (i = 0; i < v.size(); i++) {
            arr[i] = (Token) v.elementAt(i);
        }

        return arr;
    }
    
    /**
     * Insert the method's description here. Creation date: (2001-10-31
     * 00.46.27)
     *
     * @return int
     *
     * @exception java.text.ParseException The exception description.
     */
    public void preProcess() throws java.text.ParseException
 	{ 
    }
    
    
    
    
}

