source: branches/ralph/src/main/java/de/ugoe/cs/autoquest/tasktrees/alignment/algorithms/NumberSequence.java @ 1621

package de.ugoe.cs.autoquest.tasktrees.alignment.algorithms;

import java.util.ArrayList;
import java.util.LinkedList;
import java.util.Random;

public class NumberSequence {
        private int[] sequence;
        private int id;

        public ArrayList<Match> getMatches() {
                return matches;
        }


        public void setMatches(ArrayList<Match> matches) {
                this.matches = matches;
        }
        
        public void addMatches(ArrayList<Match> matches) {
                this.matches.addAll(matches);
        }

        private ArrayList<Match> matches;

        public NumberSequence(int size) {

                sequence = new int[size];
        }
        
        public int[] getSequence() {
                return sequence;
        }

        public void setSequence(int[] sequence) {
                this.sequence = sequence;
        }

        

        public void printSequence() {
                for (int i = 0; i < sequence.length; i++) {
                        System.out.format("%5d", sequence[i]);
                }
                System.out.println();
        }

        public NumberSequence shuffle() {
                NumberSequence result = new NumberSequence(sequence.length);
                result.setId(getId());
                result.setSequence(this.sequence);
                Random rgen = new Random();

                for (int i = 0; i < result.sequence.length; i++) {
                        int randomPosition = rgen.nextInt(result.sequence.length);
                        int temp = result.sequence[i];
                        result.sequence[i] = result.sequence[randomPosition];
                        result.sequence[randomPosition] = temp;
                }
                return result;

        }

        //Searching occurences of 
        public LinkedList<Integer> containsPattern(Match pattern) {
                LinkedList<Integer> result = new LinkedList<Integer>();
                int i = 0;
                int[] pat1 = pattern.getFirstSequence().getSequence();
                int[] pat2 = pattern.getSecondSequence().getSequence();
                notmatched: while (i < sequence.length - pat1.length) {
                        if (sequence[i] == pat1[0] || sequence[i] == pat2[0]) {
                                int ipat1 =0;
                                int ipat2 =0;
                                while(ipat1 < pat1.length && ipat2<pat2.length) {
                                        if(pat1[ipat1]==-1) {
                                                ipat1++;
                                                continue;
                                        }
                                        if(pat2[ipat2]==-1) {
                                                ipat2++;
                                                continue;
                                        }
                                        if (sequence[i + ipat1] != pat1[ipat1]
                                                        && sequence[i + ipat2] != pat2[ipat2]) {
                                                i++;
                                                continue notmatched;
                                        }
                                        ipat1++;
                                        ipat2++;
                                }
                                result.add(i);
                        }
                        i++;
                }
                return result;
        }
        
        //Returns the number of times event occurs in this sequence
        public int eventCount(int event) {
                int count = 0;
                for(int i=0;i<sequence.length;i++) {
                        if(sequence[i] == event) {
                                count++;
                        }
                }
                return count;
        }

        public int size() {
                return sequence.length;
        }


        public int getId() {
                return id;
        }


        public void setId(int id) {
                this.id = id;
        }
        
        public boolean equals(NumberSequence n) {
                int[] seq = n.getSequence();
                if(n.size() !=this.size()) {
                        return false; 
                }
                for (int i=0; i<n.size();i++) {
                        if(seq[i] != this.sequence[i]) {
                                return false;
                        }
                }
                return true;
        }
        
        
}