Find acquire connections

gistfile1.txt

import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

/**
 * @author stselovalnikov
 * @since Feb 26, 2014
 */
public class StackTraceScanner
{
    public static class StackTrace
    {
        private final String firstLine;
        private final List<String> lines = new ArrayList<>();

        public StackTrace(String line)
        {
            this.firstLine = line;
        }

        public void addLine(String line)
        {
            lines.add(line);
        }

        public String getFirstLine()
        {
            return firstLine;
        }

        public List<String> getLines()
        {
            return Collections.unmodifiableList(lines);
        }

        @Override
        public String toString()
        {
            StringBuilder result = new StringBuilder(firstLine + "\n");
            for (String line : lines)
            {
                result.append(line).append("\n");
            }
            return result.toString();
        }
    }

    public static void main(String[] args) throws FileNotFoundException, IOException
    {
        //        String path = args[0];
        String path = "/home/stselovalnikov/Downloads/jstack.2";
        List<StackTrace> traces = new ArrayList<>();
        StackTrace current = null;
        try (BufferedReader br = new BufferedReader(new FileReader(path)))
        {
            String line;
            while ((line = br.readLine()) != null)
            {
                if (line.isEmpty() && current == null)
                    continue;
                else if (line.isEmpty())
                {
                    traces.add(current);
                    current = null;
                }
                else if (current == null)
                    current = new StackTrace(line);
                else
                    current.addLine(line);
            }
        }
        if (current != null)
        {
            traces.add(current);
        }

        System.out.println("Found " + traces.size() + " traces");

        for (StackTrace stack : traces)
        {
            int count = 0;
            for (String line : stack.getLines())
            {
                if (line.contains("TransactionTemplate.execute"))
                {
                    count++;
                }
            }
            if (count >= 2)
            {
                System.out.println(stack.getFirstLine());
                System.out.println(count);
            }
        }
    }
}