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package configuration_file_parser;
import java.io.FileNotFoundException;
import java.util.ArrayDeque;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Queue;
import java.util.Set;
import java.util.function.BiFunction;
import java.util.function.Function;
import org.apache.commons.configuration2.ex.ConfigurationException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import api.definition.IBenchmark;
import api.definition.ITask;
import api.definition.config.IExport;
import api.definition.config.IInputData;
import api.definition.config.IMeasures;
import api.definition.config.IPlatformParameters;
import api.definition.config.IToolParameters;
import api.definition.config.common.IPropertySet;
import api.running.IToolBinding;
import configuration_file_parser.config.ConfigPreprocessor;
import configuration_file_parser.config.ConfigurationLoader;
import configuration_file_parser.segment.ExportClassesParser;
import configuration_file_parser.segment.MeasuresParser;
import configuration_file_parser.segment.PlatformParser;
import configuration_file_parser.segment.ReasonerClassesParser;
import configuration_file_parser.segment.ScenarioParser;
import configuration_file_parser.segment.ToolParser;
import constants.BRunnerKeywords;
import constants.RunnersConstants;
import constants.ToolsConstants;
import impl.factory.DefaultComponentFactory;
import impl.factory.IComponentFactory;
import radicchio.FileUtils;
/**
* Parses configuration files for the BRunner benchmarking tool. This class
* supports parsing various segments including input data, tool parameters,
* platform parameters, measures, and export classes. It assembles these
* components into a comprehensive {@link IBenchmark} object.
*/
public class BRunnerConfigurationFileParser {
@FunctionalInterface
public interface TriFunction {
R apply(T t, U u, V v);
}
//////////////////////
// Fields
//////////////////////
protected static Logger LOG = LoggerFactory.getLogger(BRunnerConfigurationFileParser.class);
protected org.apache.commons.configuration2.Configuration apacheConfigurationObject;
protected IBenchmark benchmark;
List inputDatas;
List toolsParam;
List platformsParam;
Collection measures;
Collection> exportClasses;
Class bindingClass;
Collection taskList;
IComponentFactory factory = DefaultComponentFactory.getInstance();
private String userConfigurationFile;
//////////////////////
// Public Methods
//////////////////////
/**
* Loads the configuration from a properties file and initializes the
* configuration object.
*
* @param configurationFile The path to the properties file to be loaded.
* @throws ConfigurationException If an error occurs during the loading or
* parsing of the configuration file.
*/
public final void createConfigurationObject(String configurationFile) throws ConfigurationException {
this.userConfigurationFile = configurationFile;
ConfigPreprocessor.preprocessConfigFile(configurationFile, ParserConstants.CONFIGURATION_PREPROCESSED_FILE);
apacheConfigurationObject = ConfigurationLoader
.loadConfiguration(ParserConstants.CONFIGURATION_PREPROCESSED_FILE, ParserConstants.ARRAY_DELIMITER);
}
/**
* Returns the current configuration object.
*
* @return The loaded configuration object.
*/
private org.apache.commons.configuration2.Configuration getConfigObject() {
return apacheConfigurationObject;
}
/**
* sets the benchmark configuration assembled from the parsed configuration
* file.
*
* @return The assembled benchmark configuration.
*/
public final IBenchmark getBenchmark() {
return benchmark;
}
/**
* Parses the configuration file and assembles all components necessary for
* benchmark execution. This includes input data, tool parameters, platform
* parameters, measures, and export classes.
*
* @param brunner_config_file
* @throws Exception
*
*/
public final void parse(String brunner_config_file) throws Exception {
LOG.debug("Parsing configuration file", 1);
createConfigurationObject(brunner_config_file);
parseBindingClasses();
parseExportClasses();
parseInputData();
parseToolParam();
parsePlatformParams();
parseMeasures();
parseDefaultTaskList();
parseDefaultBenchmark();
}
private void parseInputData() throws FileNotFoundException {
var raw = ScenarioParser.parse(getConfigObject(), this.userConfigurationFile);
inputDatas = getDefaultRepresentation(raw, factory::createInputData, this::extractId);
}
private void parseToolParam() {
var raw = ToolParser.parse(getConfigObject());
toolsParam = getDefaultRepresentationForTyped(raw, factory::createToolParameters,
ToolsConstants.getConstantByClass(bindingClass), this::extractId);
}
private void parsePlatformParams() {
var raw = PlatformParser.parse(getConfigObject());
platformsParam = getDefaultRepresentationForTyped(raw, factory::createPlatformParameters, RunnersConstants.JMH,
this::extractId);
}
private void parseMeasures() {
var raw = MeasuresParser.parse(getConfigObject());
measures = getDefaultRepresentation(raw, factory::createMeasures);
if (measures.isEmpty()) {
measures.add(DefaultComponentFactory.getInstance().createMeasures("time"));
}
}
private Integer extractId(Map map) {
for (var k : map.keySet()) {
if (k.endsWith(BRunnerKeywords.InnerLevel.PARAMETER_ID.kw)) {
return Integer.parseInt(map.get(k));
}
}
return null;
}
private void parseExportClasses() throws ClassNotFoundException, ConfigurationException {
exportClasses = ExportClassesParser.parse(getConfigObject());
}
private void parseBindingClasses() throws ClassNotFoundException, ConfigurationException {
bindingClass = ReasonerClassesParser.parse(getConfigObject());
}
/**
* Prints the parsed benchmark and any unused properties from the configuration
* file.
*/
public final void print() {
benchmark.toString();
System.out.println("\nUnused .properties properties");
System.out.println(ParserUtils.getUnused(getConfigObject()));
}
//////////////////////
//////////////////////
//////////////////////
// Private Methods
//////////////////////
//////////////////////
//////////////////////
/**
* Instantiates and populates a collection of objects that implement the
* {@link IPropertySet} interface, based on a provided map of configuration
* data. This method uses a constructor reference to instantiate objects of the
* specified class type, enhancing type safety and performance by avoiding
* reflection.
*
* @param The type parameter that extends {@link IPropertySet},
* indicating the type of objects to be created and
* populated.
* @param map A {@link Map} where each entry consists of a String key
* and another {@link Map} as its value. The key is used to
* instantiate the object (usually as an identifier or
* configuration name), and the value map contains
* properties to populate the object with.
* @param objectCreator A {@link Function} that accepts a String argument (the
* key) and returns a new instance of type T. This replaces
* the need for the clazz parameter and direct use of
* reflection to instantiate objects.
* @return A {@link Collection} of instantiated and populated objects of type T.
* Each object's state is initialized based on the corresponding entry's
* value map from the provided configuration data map.
*/
private static final > Collection getDefaultRepresentation(
Map> map, Function objectCreator) {
Collection result = new ArrayList<>();
for (Entry> entry : map.entrySet()) {
// Create new object using the creator function
T instance = objectCreator.apply(entry.getKey());
// Fill the object
instance.fillWith(entry.getValue());
// Add object to the result
result.add(instance);
}
return result;
}
/**
* Variant of getDefaultRepresentation for bifunctions
*
* @param
* @param
* @param map
* @param objectCreator
* @param computeValueFunction
* @return
*/
private static final , U> List getDefaultRepresentation(
Map> map, BiFunction objectCreator,
Function, U> computeValueFunction) {
List result = new ArrayList<>();
for (Entry> entry : map.entrySet()) {
// Create new object using the creator function
T instance = objectCreator.apply(entry.getKey(), computeValueFunction.apply(entry.getValue()));
// Fill the object
instance.fillWith(entry.getValue());
// Add object to the result
result.add(instance);
}
return result;
}
/**
* Variant of getDefaultRepresentation for trifunctions
*
* @param
* @param
* @param
* @param map
* @param objectCreator
* @param value
* @param computeValueFunction
* @return
*/
private static final , U, S> List getDefaultRepresentationForTyped(
Map> map, TriFunction objectCreator, U value,
Function, S> computeValueFunction) {
List result = new ArrayList<>();
for (Entry> entry : map.entrySet()) {
T instance = objectCreator.apply(entry.getKey(), value, computeValueFunction.apply(entry.getValue()));
instance.fillWith(entry.getValue());
result.add(instance);
}
return result;
}
/**
* Creates a default benchmark representation by assembling all the necessary
* components collected during the parsing process. This includes input data
* scenarios, tool parameters, platform parameters, measures, export classes,
* and task list. It automatically generates a unique benchmark name based on an
* incremented counter to ensure each benchmark is distinctly identified.
*
*/
private void parseDefaultBenchmark() {
incrementBenchmarkCounter();
resetTaskCounter();
String benchName = "BENCH_" + "_" + getBenchmarkCounter()
+ FileUtils.extractFileNameWithoutExtension(userConfigurationFile);
benchmark = factory.createBenchmark(benchName, inputDatas, toolsParam, platformsParam, measures, exportClasses,
bindingClass, taskList);
}
/**
* Generates a default collection of task representations based on the parsed
* configuration. This method prepares a list of execution tasks by combining
* different configurations (input data, tool parameters, platform parameters,
* measures) specified in the configuration file. It supports executing specific
* configurations by filtering them according to the execution only parameters
* if provided.
*
* @param defaultTaskCreator
*
*/
private void parseDefaultTaskList() {
resetTaskCounter();
Queue> executionsAll = prepareTaskList();
Collection result = new ArrayList<>();
Collections.sort(inputDatas);
Collections.sort(toolsParam);
Collections.sort(platformsParam);
for (Map singleExec : executionsAll) {
final Object[] resultHolder = new Object[4]; // needed to collect values from the lambdas
inputDatas.forEach(scenario -> {
if (scenario.getName().equals(singleExec.get(BRunnerKeywords.OuterLevel.INPUTDATA.kw))) {
resultHolder[0] = scenario;
}
});
toolsParam.forEach(reasoner -> {
if (reasoner.getName().equals(singleExec.get(BRunnerKeywords.OuterLevel.TOOL_PARAMETERS.kw))) {
resultHolder[1] = reasoner;
}
});
platformsParam.forEach(platform -> {
if (platform.getName()
.equals(singleExec.get(BRunnerKeywords.OuterLevel.EXECUTION_PLATFORM_PARAMETERS.kw))) {
resultHolder[2] = platform;
}
});
this.measures.forEach(measure -> {
if (measure.getName().equals(singleExec.get(BRunnerKeywords.OuterLevel.MEASURE.kw))) {
resultHolder[3] = measure;
}
});
// the task is now completely specified and ready to go into the benchmark
var scenario = (IInputData) resultHolder[0];
var toolparameters = (IToolParameters) resultHolder[1];
var platformparameters = (IPlatformParameters) resultHolder[2];
var measures = (IMeasures) resultHolder[3];
incrementTaskCounter();
String taskName = "BENCH_" + getBenchmarkCounter() + "_"
+ FileUtils.extractFileNameWithoutExtension(userConfigurationFile) + "--TASK_" + getTaskCounter()
+ "_" + toolparameters.getName() + "_" + scenario.getName();
var newTask = factory.createTask(taskName, scenario, toolparameters, platformparameters, measures,
exportClasses, bindingClass);
result.add(newTask);
}
taskList = result;
}
/**
* Prepares a list of maps, each representing a unique combination of input
* data, tool parameters, platform parameters, and measures. This method
* accounts for execution-only configurations if specified, allowing for
* targeted execution of specific benchmark configurations. It generates all
* possible permutations of the configurations or filters them according to the
* execution-only specifications.
*
* @return A queue of maps, with each map detailing a specific execution
* configuration for a task.
*/
private Queue> prepareTaskList() {
List executeOnlyConfigs = apacheConfigurationObject.getList(String.class,
ParserConstants.EXECUTE_ONLY_KW);
apacheConfigurationObject.clearProperty(ParserConstants.EXECUTE_ONLY_KW);
Queue> executionsAll = new ArrayDeque<>();
Set inputDataScenarioNames = new LinkedHashSet();
Set toolConfigurationNames = new LinkedHashSet();
Set platformConfigurationNames = new LinkedHashSet();
Set measureNames = new LinkedHashSet();
Collections.sort(inputDatas);
Collections.sort(toolsParam);
Collections.sort(platformsParam);
inputDatas.forEach(input -> inputDataScenarioNames.add(input.getName()));
toolsParam.forEach(input -> toolConfigurationNames.add(input.getName()));
platformsParam.forEach(input -> platformConfigurationNames.add(input.getName()));
measures.forEach(input -> measureNames.add(input.getName()));
if (executeOnlyConfigs == null) {
executionsAll = ParserUtils.generateExecutionPermutations(inputDataScenarioNames, toolConfigurationNames,
platformConfigurationNames, measureNames);
return executionsAll;
}
for (String executionOnlyConfig : executeOnlyConfigs) {
List executionOnlyParams = Arrays
.asList(executionOnlyConfig.trim().split(ParserConstants.EXECUTE_ONLY_DELIMITER_REGEX));
Set s = ParserUtils.getRelevantSubset(executionOnlyParams.get(0), inputDataScenarioNames);
Set r = ParserUtils.getRelevantSubset(executionOnlyParams.get(1), toolConfigurationNames);
Set p = ParserUtils.getRelevantSubset(executionOnlyParams.get(2), platformConfigurationNames);
Set m = ParserUtils.getRelevantSubset(executionOnlyParams.get(3), measureNames);
executionsAll.addAll(ParserUtils.generateExecutionPermutations(s, r, p, m));
}
return executionsAll;
}
/**
*
* @return the parsed input data
*/
public Collection getInputDatas() {
return inputDatas;
}
/**
* @return the parsed tool parameters
*/
public Collection getToolsParam() {
return toolsParam;
}
/**
* @return the parsed platform parameters
*/
public Collection getPlatformsParam() {
return platformsParam;
}
//////////////////////////////
/// Static Fields and Methods
//////////////////////////////
private static int taskCounter = 0;
private static int getTaskCounter() {
return taskCounter;
}
private static void incrementTaskCounter() {
taskCounter++;
}
private static int benchmarkCounter = 0;
private static int getBenchmarkCounter() {
return benchmarkCounter;
}
private static void incrementBenchmarkCounter() {
benchmarkCounter++;
}
private static void resetTaskCounter() {
taskCounter = 0;
}
}
