From d1f640f11d3fd0d572794596f6aa95d48d496f4b Mon Sep 17 00:00:00 2001
From: Alexander Demidovskij <monadv@yandex.ru>
Date: Sun, 27 Mar 2022 17:40:13 +0300
Subject: [PATCH] [BUG] Make jar indepdendent of sources (#2)

---
 .gitignore                                    |   1 +
 .idea/gradle.xml                              |   4 +-
 .idea/misc.xml                                |   9 +-
 README.md                                     |   6 +-
 build.gradle                                  |   6 +
 src/main/java/dss/lingvo/Main.java            |  43 +++++--
 .../lingvo/samples/TT2HFLTSCoordinator.java   | 110 +++++++++---------
 .../dss/lingvo/t2/TTNormalizedTranslator.java |  14 ++-
 .../java/dss/lingvo/utils/TTJSONUtils.java    |  10 +-
 src/main/java/dss/lingvo/utils/TTUtils.java   |   5 +-
 ...TT2HFLTSMHTWOWAMultiLevelOperatorTest.java |   5 +-
 .../java/dss/lingvo/utils/TTUtilsTest.java    |   5 +-
 12 files changed, 128 insertions(+), 90 deletions(-)

diff --git a/.gitignore b/.gitignore
index 0517dd6..040ebac 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,3 +5,4 @@ build/
 gradle.properties
 
 *.log
+artifacts/
diff --git a/.idea/gradle.xml b/.idea/gradle.xml
index 73b61b3..1362b95 100644
--- a/.idea/gradle.xml
+++ b/.idea/gradle.xml
@@ -4,8 +4,8 @@
   <component name="GradleSettings">
     <option name="linkedExternalProjectsSettings">
       <GradleProjectSettings>
-        <option name="delegatedBuild" value="true" />
-        <option name="testRunner" value="GRADLE" />
+        <option name="delegatedBuild" value="false" />
+        <option name="testRunner" value="PLATFORM" />
         <option name="distributionType" value="DEFAULT_WRAPPED" />
         <option name="externalProjectPath" value="$PROJECT_DIR$" />
         <option name="gradleHome" value="$PROJECT_DIR$/../../../../Gradle/gradle-7.4.1" />
diff --git a/.idea/misc.xml b/.idea/misc.xml
index f04a5a8..55cbf06 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -3,14 +3,7 @@
   <component name="FrameworkDetectionExcludesConfiguration">
     <file type="web" url="file://$PROJECT_DIR$" />
   </component>
-  <component name="MavenImportPreferences">
-    <option name="generalSettings">
-      <MavenGeneralSettings>
-        <option name="mavenHome" value="Bundled (Maven 3)" />
-      </MavenGeneralSettings>
-    </option>
-  </component>
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_17" project-jdk-name="1.8" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_17" project-jdk-name="17" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/build/classes" />
   </component>
 </project>
\ No newline at end of file
diff --git a/README.md b/README.md
index 436c2dd..1f13037 100644
--- a/README.md
+++ b/README.md
@@ -12,12 +12,12 @@ Example launch:
 1. macOS:
 
    ```bash
-   ./gradlew run -PappArgs="['-i', 'PATH_TO_PROJECT_ROOT/src/main/resources/description_multilevel.json', '-o', 'run.log']"
+   ./gradlew run -PappArgs="['-i', 'PATH_TO_PROJECT_ROOT/src/main/resources/description_multilevel.json', '-o', 'artifacts']"
    ```
 
 2. Windows:
    ```bash
-   .\gradlew run --args='-i PATH_TO_PROJECT_ROOT\src\main\resources\description_multilevel.json -o run.log'
+   .\gradlew run --args='-i PATH_TO_PROJECT_ROOT\src\main\resources\description_multilevel.json -o artifacts'
    ```
 
 ### How to use as a jar
@@ -28,5 +28,5 @@ Example launch:
 While *lingvo-dss-sources.jar* contains sources of the library.
 4. Run the jar on the given description:
    ```bash
-   java -jar .\build\libs\lingvo-dss-all.jar -i .\src\main\resources\description_multilevel.json -o run.log
+   java -jar .\build\libs\lingvo-dss-all.jar -i .\src\main\resources\description_multilevel.json -o artifacts
    ```
diff --git a/build.gradle b/build.gradle
index f8edec4..8f333ae 100644
--- a/build.gradle
+++ b/build.gradle
@@ -8,6 +8,12 @@ repositories {
     mavenCentral()
 }
 
+java {
+    toolchain {
+        languageVersion = JavaLanguageVersion.of(17)
+    }
+}
+
 dependencies {
     implementation(
             [group: 'com.fasterxml.jackson.core', name: 'jackson-core', version: '2.4.1'],
diff --git a/src/main/java/dss/lingvo/Main.java b/src/main/java/dss/lingvo/Main.java
index 6cdec7f..9b2aec6 100644
--- a/src/main/java/dss/lingvo/Main.java
+++ b/src/main/java/dss/lingvo/Main.java
@@ -3,19 +3,21 @@
 import dss.lingvo.samples.TT2HFLTSCoordinator;
 import org.apache.commons.cli.*;
 
+import java.io.File;
 import java.io.IOException;
 import java.io.PrintStream;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
 
 public class Main {
-
-    private Main(){}
-
     public static void main(String[] args) throws IOException {
         Options options = new Options();
 
         Option input = new Option("i", "input", true, "input file path");
         input.setRequired(true);
-        Option input2 = new Option("o", "output", true, "output file path");
+        Option input2 = new Option("o", "output-dir", true,
+                "output directory containing decision making artifacts");
         input2.setRequired(true);
 
         options.addOption(input);
@@ -23,7 +25,7 @@ public static void main(String[] args) throws IOException {
 
         CommandLineParser parser = new DefaultParser();
         HelpFormatter formatter = new HelpFormatter();
-        CommandLine cmd;
+        CommandLine cmd = null;
 
         try {
             cmd = parser.parse(options, args);
@@ -32,16 +34,37 @@ public static void main(String[] args) throws IOException {
             formatter.printHelp("utility-name", options);
 
             System.exit(1);
+        }
+
+        String inputFilePathRaw = cmd.getOptionValue("input");
+        String outputDirectoryPathRaw = cmd.getOptionValue("output-dir");
+
+        File inputFile  = new File(inputFilePathRaw);
+        if (!inputFile.exists()) {
+            System.out.println("Specified file with task description does not exist. Specify a real description");
+            System.exit(1);
+        }
+
+        File outputDirectory = new File(outputDirectoryPathRaw);
+
+        if (!outputDirectory.exists()) {
+            System.out.println("Specified output directory does not exist. Need to create it first");
+            Files.createDirectories(outputDirectory.toPath());
+        }
+
+
+        if (outputDirectory.exists() && !outputDirectory.isDirectory()) {
+            System.out.println("The path provided as an output directory is not a directory. Specify a real folder.");
+            System.exit(1);
             return;
         }
 
-        String inputFilePath = cmd.getOptionValue("input");
-        String outputFilePath = cmd.getOptionValue("output");
+        Path outputFilePath = Paths.get(outputDirectory.toString(), "out.log");
 
-        PrintStream out = new PrintStream(outputFilePath, "UTF-8");
+        PrintStream out = new PrintStream(outputFilePath.toString(), "UTF-8");
         System.setOut(out);
 
-        TT2HFLTSCoordinator complextT2HFLTSCoordinator = new TT2HFLTSCoordinator();
-        complextT2HFLTSCoordinator.go(inputFilePath);
+        TT2HFLTSCoordinator complexT2HFLTSCoordinator = new TT2HFLTSCoordinator();
+        complexT2HFLTSCoordinator.go(inputFile, outputDirectory);
     }
 }
diff --git a/src/main/java/dss/lingvo/samples/TT2HFLTSCoordinator.java b/src/main/java/dss/lingvo/samples/TT2HFLTSCoordinator.java
index 5f5a914..2a9e5a9 100644
--- a/src/main/java/dss/lingvo/samples/TT2HFLTSCoordinator.java
+++ b/src/main/java/dss/lingvo/samples/TT2HFLTSCoordinator.java
@@ -7,7 +7,6 @@
 import dss.lingvo.t2hflts.TT2HFLTSMHTWOWAOperator;
 import dss.lingvo.t2hflts.multilevel.TT2HFLTSMHTWOWAMultiLevelOperator;
 import dss.lingvo.utils.TTJSONUtils;
-import dss.lingvo.utils.TTReportUtils;
 import dss.lingvo.utils.TTUtils;
 import dss.lingvo.utils.models.input.TTAlternativeModel;
 import dss.lingvo.utils.models.input.multilevel.TTJSONMultiLevelInputModel;
@@ -15,16 +14,18 @@
 import dss.lingvo.utils.models.output.TTJSONOutputModel;
 import javafx.util.Pair;
 
+import java.io.File;
 import java.io.IOException;
+import java.nio.file.Path;
+import java.nio.file.Paths;
 import java.util.*;
 import java.util.stream.Collectors;
 import java.util.stream.IntStream;
 
 public class TT2HFLTSCoordinator {
-    private TTUtils log = TTUtils.getInstance();
+    private final TTJSONUtils ttjsonReader = TTJSONUtils.getInstance();
 
-    public void go(String inputFilePath) throws IOException {
-        TTJSONUtils ttjsonReader = TTJSONUtils.getInstance();
+    private void processSimpleCase(File outputDirectory) throws IOException {
         TTJSONInputModel ttjsonModel = ttjsonReader.readJSONDescription("description_from_article.json");
 
         if (ttjsonModel == null) {
@@ -35,7 +36,6 @@ public void go(String inputFilePath) throws IOException {
         // 1. register all scales
         TTNormalizedTranslator.registerScalesBatch(ttjsonModel.getScales());
 
-
         // MHTWOWA example
 
         // 1. Gather feedback and translate directly to the TT2HFLTS (per each expert)
@@ -57,13 +57,15 @@ public void go(String inputFilePath) throws IOException {
 
         // now need to make the calculation for every alternative
         TT2HFLTSMHTWOWAOperator tt2HFLTSMHTWOWAOperator = new TT2HFLTSMHTWOWAOperator();
-        List<TT2HFLTS> altOverall = tt2HFLTSMHTWOWAOperator.calculate(numAlternatives,
-                numExperts, p, w, aggEstAll, 7);
+        List<TT2HFLTS> altOverall = tt2HFLTSMHTWOWAOperator.calculate(numAlternatives, numExperts, p, w, aggEstAll, 7);
 
         TTJSONOutputModel res = TTUtils.prepareAllResultsForJSON(altOverall, ttjsonModel, 7);
         // now output results
-        TTJSONUtils.getInstance().writeResultToJSON("build/resources/result.json", res);
+        Path outputJSONFilePath = Paths.get(outputDirectory.toString(), "result_simple.json");
+        TTJSONUtils.getInstance().writeResultToJSON(outputJSONFilePath, res);
+    }
 
+    private void processNumericSample() {
         // now how to work with numbers
         int targetScaleSize = 7;
 
@@ -72,7 +74,9 @@ public void go(String inputFilePath) throws IOException {
         float resTranslation = TTNormalizedTranslator.getInstance().getTranslationFromFuzzySet(fSet);
         TTTuple resTuple = TTNormalizedTranslator.getInstance().getTTupleForNumericTranslation(resTranslation, 5);
         System.out.printf("Translating %f to 2-tuple: %s\n", numeric_assessment, resTuple.toString());
+    }
 
+    private void processweightsGenerationSample() {
         float[] expDistr = {0.8f, 0.2f};
         float[] resVector = TTUtils.calculateWeightsVector(expDistr, 4);
         System.out.println(Arrays.toString(resVector));
@@ -82,11 +86,10 @@ public void go(String inputFilePath) throws IOException {
             sum += v;
         }
         System.out.printf("Sum of weights should be 1. Actual sum is: %f", sum);
+    }
 
-        //---------------------
-        // Enable multilevel task solving
-
-        float [] ww = {0.33f,0.33f,0.33f};
+    private void processMHTWASample() {
+        float[] ww = {0.33f, 0.33f, 0.33f};
         List<TTTuple> l = new ArrayList<>();
         l.add(new TTTuple("p", 9, 0f, 3));
         TT2HFLTS el1 = new TT2HFLTS(l);
@@ -102,66 +105,63 @@ public void go(String inputFilePath) throws IOException {
         ll.add(el3);
         TT2HFLTSMHTWAOperator op = new TT2HFLTSMHTWAOperator();
         TT2HFLTS rr = op.calculate(ll, ww, 9);
+    }
 
+    private void processMultiLevelAdvancedSample(File inputFile, File outputDirectory) throws IOException {
+        int targetScaleSize = 7;
 
-        TTJSONMultiLevelInputModel model = ttjsonReader.readJSONMultiLevelDescription(inputFilePath, false);
+        TTJSONMultiLevelInputModel model = ttjsonReader.readJSONMultiLevelDescription(inputFile, false);
         List<ArrayList<ArrayList<TT2HFLTS>>> all = TTUtils.getAllEstimationsFromMultiLevelJSONModel(model, 7);
 
         // Step 1. Aggregate by abstraction level
         TT2HFLTSMHTWOWAMultiLevelOperator tt2HFLTSMHTWOWAMultiLevelOperator = new TT2HFLTSMHTWOWAMultiLevelOperator();
-        List<ArrayList<ArrayList<TT2HFLTS>>> allByLevel = tt2HFLTSMHTWOWAMultiLevelOperator
-                .aggregateByAbstractionLevel(model.getCriteria(),
-                        model.getAbstractionLevels(),
-                        all,
-                        targetScaleSize);
-
-        List<ArrayList<ArrayList<TT2HFLTS>>> allByExpert = tt2HFLTSMHTWOWAMultiLevelOperator
-                .transposeByAbstractionLevel(model.getAbstractionLevels().size(),
-                        model.getAlternatives().size(),
-                        model.getExperts().size(),
-                        allByLevel);
+        List<ArrayList<ArrayList<TT2HFLTS>>> allByLevel = tt2HFLTSMHTWOWAMultiLevelOperator.aggregateByAbstractionLevel(model.getCriteria(), model.getAbstractionLevels(), all, targetScaleSize);
+
+        List<ArrayList<ArrayList<TT2HFLTS>>> allByExpert = tt2HFLTSMHTWOWAMultiLevelOperator.transposeByAbstractionLevel(model.getAbstractionLevels().size(), model.getAlternatives().size(), model.getExperts().size(), allByLevel);
 
         float[] a = new float[model.getExpertWeightsRule().values().size()];
         float curMax = 0f;
-        for (Map.Entry<String, Float> e: model.getExpertWeightsRule().entrySet()){
-            if (e.getKey().equals("1")){
+        for (Map.Entry<String, Float> e : model.getExpertWeightsRule().entrySet()) {
+            if (e.getKey().equals("1")) {
                 curMax = e.getValue();
                 break;
             }
         }
         a[0] = curMax;
-        a[1] = 1-curMax;
-        List<ArrayList<TT2HFLTS>> altToLevel = tt2HFLTSMHTWOWAMultiLevelOperator
-                .aggregateByExpert(model.getAbstractionLevels().size(),
-                        model.getAlternatives().size(),
-                        7,
-                        allByExpert,
-                        a);
-
-        List<TT2HFLTS> altVec = tt2HFLTSMHTWOWAMultiLevelOperator
-                .aggregateFinalAltEst(7,
-                        altToLevel);
-
-        List<Pair<String, TT2HFLTS>> resZippedVec = IntStream.range(0, altVec.size())
-                .mapToObj(i -> new Pair<>(model.getAlternatives().get(i).getAlternativeID(), altVec.get(i)))
-                .collect(Collectors.toList());
-
-        Collections.sort(resZippedVec, Collections.reverseOrder(new Comparator<Pair<String, TT2HFLTS>>() {
-            @Override
-            public int compare(Pair<String, TT2HFLTS> o1, Pair<String, TT2HFLTS> o2) {
-                return TTUtils.compareTT2HFLTS(o1.getValue(), o2.getValue());
-            }
-        }));
+        a[1] = 1 - curMax;
+        List<ArrayList<TT2HFLTS>> altToLevel = tt2HFLTSMHTWOWAMultiLevelOperator.aggregateByExpert(model.getAbstractionLevels().size(), model.getAlternatives().size(), 7, allByExpert, a);
+
+        List<TT2HFLTS> altVec = tt2HFLTSMHTWOWAMultiLevelOperator.aggregateFinalAltEst(7, altToLevel);
+
+        // all below is just processing
+
+        // saving to file
+        TTJSONOutputModel res = TTUtils.prepareAllResultsForJSON(altVec, model, 7);
+        Path outputJSONFilePath = Paths.get(outputDirectory.toString(), "result.json");
+        TTJSONUtils.getInstance().writeResultToJSON(outputJSONFilePath, res);
+
+
+        // printing to console
+        List<Pair<String, TT2HFLTS>> resZippedVec = IntStream.range(0, altVec.size()).mapToObj(i -> new Pair<>(model.getAlternatives().get(i).getAlternativeID(), altVec.get(i))).collect(Collectors.toList());
+
+        resZippedVec.sort(Collections.reverseOrder((o1, o2) -> TTUtils.compareTT2HFLTS(o1.getValue(), o2.getValue())));
 
         System.out.println("\n\n\n[MULTILEVEL] [REPORT] Aggregation results");
-        for (Pair<String, TT2HFLTS> stringTT2HFLTSPair: resZippedVec){
-            TTAlternativeModel altInstance = model.getAlternatives()
-                    .stream()
-                    .filter((TTAlternativeModel ttAlternativeModel) -> ttAlternativeModel.getAlternativeID()
-                            .equals(stringTT2HFLTSPair.getKey()))
-                    .findFirst()
-                    .orElse(null);
+        for (Pair<String, TT2HFLTS> stringTT2HFLTSPair : resZippedVec) {
+            TTAlternativeModel altInstance = model.getAlternatives().stream().filter((TTAlternativeModel ttAlternativeModel) -> ttAlternativeModel.getAlternativeID().equals(stringTT2HFLTSPair.getKey())).findFirst().orElse(null);
             System.out.println(stringTT2HFLTSPair.getKey() + ' ' + altInstance.getAlternativeName());
         }
     }
+
+    public void go(File inputFile, File outputDirectory) throws IOException {
+        processSimpleCase(outputDirectory);
+
+        processNumericSample();
+
+        processweightsGenerationSample();
+
+        processMHTWASample();
+
+        processMultiLevelAdvancedSample(inputFile, outputDirectory);
+    }
 }
diff --git a/src/main/java/dss/lingvo/t2/TTNormalizedTranslator.java b/src/main/java/dss/lingvo/t2/TTNormalizedTranslator.java
index a0d5a01..4bb47c5 100644
--- a/src/main/java/dss/lingvo/t2/TTNormalizedTranslator.java
+++ b/src/main/java/dss/lingvo/t2/TTNormalizedTranslator.java
@@ -67,15 +67,23 @@ public List<Float> getFuzzySetForNumericEstimation(float estimation, int targetS
             float b = range[1];
             float d = range[2];
             float c = range[3];
-            Float tmp = null;
+            float tmp;
             if ((a > estimation) || (c < estimation)) {
                 tmp = 0f;
             } else if (estimation <= b) {
-                tmp = (estimation - a) / (b - a);
+                if ((b - a) == 0) {
+                    tmp = 0f;
+                } else {
+                    tmp = (estimation - a) / (b - a);
+                }
             } else if (estimation <= d) {
                 tmp = 1f;
             } else {
-                tmp = (c - estimation) / (c - d);
+                if ((c - d) == 0) {
+                    tmp = 0f;
+                } else {
+                    tmp = (c - estimation) / (c - d);
+                }
             }
             resFuzzySet.add(tmp);
         }
diff --git a/src/main/java/dss/lingvo/utils/TTJSONUtils.java b/src/main/java/dss/lingvo/utils/TTJSONUtils.java
index f583d94..a0d1aa5 100644
--- a/src/main/java/dss/lingvo/utils/TTJSONUtils.java
+++ b/src/main/java/dss/lingvo/utils/TTJSONUtils.java
@@ -9,6 +9,7 @@
 import java.io.IOException;
 import java.io.InputStream;
 import java.net.URL;
+import java.nio.file.Path;
 
 public class TTJSONUtils {
     private static TTJSONUtils ttjsonReader = new TTJSONUtils();
@@ -23,22 +24,21 @@ public TTJSONInputModel readJSONDescription(String fileName) throws IOException
         return mapper.readValue(modelFileStream, TTJSONInputModel.class);
     }
 
-    public TTJSONMultiLevelInputModel readJSONMultiLevelDescription(String fileName, boolean isResourceFile) throws IOException {
+    public TTJSONMultiLevelInputModel readJSONMultiLevelDescription(File file, boolean isResourceFile) throws IOException {
         ObjectMapper mapper = new ObjectMapper();
 
         if (isResourceFile) {
-            InputStream modelFileStream = getClass().getResourceAsStream('/'+fileName);
+            InputStream modelFileStream = getClass().getResourceAsStream('/'+file.toString());
             return mapper.readValue(modelFileStream, TTJSONMultiLevelInputModel.class);
         }
 
-        File file = new File(fileName);
         return mapper.readValue(file, TTJSONMultiLevelInputModel.class);
     }
 
-    public void writeResultToJSON(String fileName, TTJSONOutputModel jsonString) throws IOException {
+    public void writeResultToJSON(Path filePath, TTJSONOutputModel jsonString) throws IOException {
         ObjectMapper mapper = new ObjectMapper();
 
         // Convert object to JSON string and save into a file directly
-        mapper.writeValue(new File(fileName), jsonString);
+        mapper.writeValue(new File(filePath.toString()), jsonString);
     }
 }
diff --git a/src/main/java/dss/lingvo/utils/TTUtils.java b/src/main/java/dss/lingvo/utils/TTUtils.java
index 496c0a8..7fb3ec2 100644
--- a/src/main/java/dss/lingvo/utils/TTUtils.java
+++ b/src/main/java/dss/lingvo/utils/TTUtils.java
@@ -6,6 +6,7 @@
 import dss.lingvo.t2hflts.TT2HFLTS;
 import dss.lingvo.t2hflts.TT2HFLTSMHTWAOperator;
 import dss.lingvo.utils.models.input.*;
+import dss.lingvo.utils.models.input.common.TTCommonInputModel;
 import dss.lingvo.utils.models.input.multilevel.TTJSONMultiLevelInputModel;
 import dss.lingvo.utils.models.input.singlelevel.TTJSONInputModel;
 import dss.lingvo.utils.models.output.TTAlternativeEstimationModel;
@@ -154,7 +155,7 @@ public static List<ArrayList<TT2HFLTS>> aggregateIndividualEstimations(List<Arra
         return aggEstAll;
     }
 
-    private static List<TTAlternativeEstimationModel> prepareJSONForAggregationEstimates(List<TT2HFLTS> altOverall, TTJSONInputModel ttjsonModel, int targetScaleSize) {
+    private static List<TTAlternativeEstimationModel> prepareJSONForAggregationEstimates(List<TT2HFLTS> altOverall, TTCommonInputModel ttjsonModel, int targetScaleSize) {
         // now just to sort
         List<TT2HFLTS> sortedAltOverall = TTUtils.sortTT2HFLTS(altOverall, true);
 
@@ -194,7 +195,7 @@ private static List<TTAlternativeEstimationModel> prepareJSONForAggregationEstim
         return tmpModel;
     }
 
-    public static TTJSONOutputModel prepareAllResultsForJSON(List<TT2HFLTS> altOverall, TTJSONInputModel ttjsonModel, int targetScaleSize) {
+    public static TTJSONOutputModel prepareAllResultsForJSON(List<TT2HFLTS> altOverall, TTCommonInputModel ttjsonModel, int targetScaleSize) {
         TTJSONOutputModel ttjsonOutputModel = new TTJSONOutputModel();
         ttjsonOutputModel.setAbstractionLevels(ttjsonModel.getAbstractionLevels());
         ttjsonOutputModel.setAlternatives(ttjsonModel.getAlternatives());
diff --git a/src/test/java/dss/lingvo/t2hflts/multilevel/TT2HFLTSMHTWOWAMultiLevelOperatorTest.java b/src/test/java/dss/lingvo/t2hflts/multilevel/TT2HFLTSMHTWOWAMultiLevelOperatorTest.java
index 4aa0f50..62a722e 100644
--- a/src/test/java/dss/lingvo/t2hflts/multilevel/TT2HFLTSMHTWOWAMultiLevelOperatorTest.java
+++ b/src/test/java/dss/lingvo/t2hflts/multilevel/TT2HFLTSMHTWOWAMultiLevelOperatorTest.java
@@ -9,6 +9,7 @@
 import org.junit.BeforeClass;
 import org.junit.Test;
 
+import java.io.File;
 import java.io.IOException;
 import java.util.ArrayList;
 import java.util.List;
@@ -28,7 +29,9 @@ public class TT2HFLTSMHTWOWAMultiLevelOperatorTest {
     @BeforeClass
     public static void runOnceBeforeClass() throws IOException {
         TTJSONUtils ttjsonReader = TTJSONUtils.getInstance();
-        model = ttjsonReader.readJSONMultiLevelDescription("description_multilevel.json", true);
+        File multilevelDescriptionFile = new File("description_multilevel.json");
+
+        model = ttjsonReader.readJSONMultiLevelDescription(multilevelDescriptionFile, true);
         TTNormalizedTranslator.registerScalesBatch(model.getScales());
         all = TTUtils.getAllEstimationsFromMultiLevelJSONModel(model, 7);
         targetScaleSize = 7;
diff --git a/src/test/java/dss/lingvo/utils/TTUtilsTest.java b/src/test/java/dss/lingvo/utils/TTUtilsTest.java
index 7c5f346..10da101 100644
--- a/src/test/java/dss/lingvo/utils/TTUtilsTest.java
+++ b/src/test/java/dss/lingvo/utils/TTUtilsTest.java
@@ -14,6 +14,7 @@
 import org.junit.Test;
 
 import java.io.ByteArrayOutputStream;
+import java.io.File;
 import java.io.IOException;
 import java.io.PrintStream;
 import java.util.ArrayList;
@@ -62,7 +63,9 @@ public static void runOnceBeforeClass() throws IOException {
         TTNormalizedTranslator.setScaleStore(scaleStore);
 
         ttjsonReader = TTJSONUtils.getInstance();
-        model = ttjsonReader.readJSONMultiLevelDescription("description_multilevel.json", true);
+
+        File multilevelDescriptionFile = new File("description_multilevel.json");
+        model = ttjsonReader.readJSONMultiLevelDescription(multilevelDescriptionFile, true);
         TTNormalizedTranslator.registerScalesBatch(model.getScales());
     }