/* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.camunda.bpm.qa.performance.engine.framework.aggregate;
import java.io.File;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
import org.camunda.bpm.qa.performance.engine.framework.PerfTestException;
import org.camunda.bpm.qa.performance.engine.framework.PerfTestResults;
import org.camunda.bpm.qa.performance.engine.util.JsonUtil;
/**
* A result aggregator is used to aggregate the results of a
* performance testsuite run as a table.
*
* The aggegator needs to be pointed to a directory containing the
* result files. It will read the result file by file and delegate the
* actual processing to a subclass implementation of this class.
*
* @author Daniel Meyer
*
*/
public abstract class TabularResultAggregator {
protected File resultDirectory;
private boolean isSortingEnabled = true;
public TabularResultAggregator(String resultsFolderPath) {
resultDirectory = new File(resultsFolderPath);
if(!resultDirectory.exists()) {
throw new PerfTestException("Folder "+resultsFolderPath+ " does not exist.");
}
}
public TabularResultAggregator sortResults(boolean isSortingEnabled) {
this.isSortingEnabled = isSortingEnabled;
return this;
}
public TabularResultSet execute() {
TabularResultSet tabularResultSet = createAggrgatedResultsInstance();
File[] resultFiles = resultDirectory.listFiles();
for (File resultFile : resultFiles) {
if(resultFile.getName().endsWith(".json")) {
processFile(resultFile, tabularResultSet);
}
}
if(isSortingEnabled) {
Collections.sort(tabularResultSet.getResults(), new Comparator<List<Object>>() {
public int compare(List<Object> o1, List<Object> o2) {
return o1.get(0).toString().compareTo(o2.get(0).toString());
}
});
}
postProcessResultSet(tabularResultSet);
return tabularResultSet;
}
protected void postProcessResultSet(TabularResultSet tabularResultSet) {
// do nothing
}
protected void processFile(File resultFile, TabularResultSet tabularResultSet) {
PerfTestResults results = JsonUtil.readObjectFromFile(resultFile.getAbsolutePath(), PerfTestResults.class);
processResults(results, tabularResultSet);
}
protected abstract TabularResultSet createAggrgatedResultsInstance();
protected abstract void processResults(PerfTestResults results, TabularResultSet tabularResultSet);
}