TransMapSimplifier.java

/*
 * JMeter Report Server
 * Copyright (C) 2010 eXcentia
 * dev@sonar.codehaus.org
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 3 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 PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02
 */

package es.excentia.jmeter.report.server.report;

import java.util.HashMap;
import java.util.Map;
import java.util.Map.Entry;

public abstract class TransMapSimplifier<TReportData, TValue> {

  public final Map<String, TValue> toSimpleMap(Map<String, TReportData> origMap) {
    Map<String, TValue> simpleMap = new HashMap<String, TValue>();
    
    for (Entry<String, TReportData> entry: origMap.entrySet()) {
      TValue value = reportDataToValue(entry.getValue());
      if (!isNullOrNaNNumber(value)) {
        simpleMap.put(entry.getKey(), value);
      }
    }
    return simpleMap;
  }

  protected abstract TValue reportDataToValue(TReportData data);

  protected boolean isNullOrNaNNumber(TValue value) {

    if (value == null) {
      return true;
    }
    if (value instanceof Double && ((Double) value).isNaN()) {
      return true;
    }
    if (value instanceof Float && ((Float) value).isNaN()) {
      return true;
    }

    return false;
  }

}