ListProps.java

/*
       This file is part of mjprof.

        mjprof 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 3 of the License, or
        (at your option) any later version.

        mjprof 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 PURPOSE.  See the
        GNU General Public License for more details.

        You should have received a copy of the GNU General Public License
        along with mjprof.  If not, see <http://www.gnu.org/licenses/>.
*/

package com.performizeit.mjprof.plugins.terminals;

import com.performizeit.mjprof.plugin.types.Terminal;
import com.performizeit.mjprof.api.Plugin;
import com.performizeit.mjprof.parser.ThreadDump;
import com.performizeit.mjprof.parser.ThreadInfo;
import com.performizeit.plumbing.PipeHandler;

import java.util.HashSet;


@Plugin(name = "list", params = {}, description = "lists the possible stack trace attributes")
public class ListProps implements Terminal, PipeHandler<ThreadDump, String> {
  HashSet<String> propsHash = new HashSet<>();

  @Override
  public String toString() {
    StringBuilder sb = new StringBuilder();
    for (String key : propsHash) {
      sb.append(key).append("\n");

    }
    return sb.toString();
  }

  @Override
  public String handleMsg(ThreadDump threadDump) {
    for (ThreadInfo threadInfo : threadDump.getStacks()) {
      for (String prop : threadInfo.getProps()) {
        propsHash.add(prop);
      }
    }
    return null;
  }

  @Override
  public String handleDone() {
    return toString();
  }
}