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Vassiliy-KudryashovVassiliy-Kudryashov
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Self-documenting settings template (#1420)
* Convert 'UTSettings.kt' into '.utbot/settings.properties' * Add Apache 2.0 license to settings.properties output and tune comments wording in sourcecode * Add template generation to gradle build process * Add AbstractSettings.areCustomized() ability to tell template from user-defined custom settings * Make all properties commented to be free switch our hardcoded defaults later if any. * Fix an issue with always-default settings state. * Change copyright in the license template to utbot.org * Fix a misprint in UtSettings property name "treatAssertAsErrorSuite"
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‎buildSrc/src/main/java/SettingsTemplateHelper.java‎

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Original file line numberDiff line numberDiff line change
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import org.gradle.api.*;
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import java.io.*;
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import java.text.*;
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import java.util.*;
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import java.util.function.*;
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/**
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* The purpose of this helper is to convert UtSettings.kt source code
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* to template resource file settings.properties (top-level entry in plugin JAR file).
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* There are two stages: parsing of input to build models and then rendering models to output file
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*/
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public class SettingsTemplateHelper {
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private static final String[] apacheLines =
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("Copyright (c) " + new SimpleDateFormat("yyyy").format(System.currentTimeMillis()) + " utbot.org\n" +
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"\n" +
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"Licensed under the Apache License, Version 2.0 (the \"License\");\n" +
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"you may not use this file except in compliance with the License.\n" +
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"You may obtain a copy of the License at\n" +
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"\n" +
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" http://www.apache.org/licenses/LICENSE-2.0\n" +
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"\n" +
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"Unless required by applicable law or agreed to in writing, software\n" +
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"distributed under the License is distributed on an \"AS IS\" BASIS,\n" +
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"WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n" +
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"See the License for the specific language governing permissions and\n" +
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"limitations under the License.").split("\n");
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public static void proceed(Project project) {
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File settingsSourceDir = new File(project.getBuildDir().getParentFile().getParentFile(), "utbot-framework-api/src/main/kotlin/org/utbot/framework/");
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String sourceFileName = "UtSettings.kt";
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File settingsResourceDir = new File(project.getBuildDir().getParentFile().getParentFile(), "utbot-intellij/src/main/resources/");
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String settingsFileName = "settings.properties";
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Map<String, String> dictionary = new HashMap<>();
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dictionary.put("Int.MAX_VALUE", String.valueOf(Integer.MAX_VALUE));
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List<PropertyModel> models = new ArrayList<>();
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List<EnumInfo> enums = new ArrayList<>();
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StringBuilder acc = new StringBuilder();
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List<String> docAcc = new ArrayList<>();
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// Stage one: parsing sourcecode
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try(BufferedReader reader = new BufferedReader(new FileReader(new File(settingsSourceDir, sourceFileName)))) {
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for (String s = reader.readLine(); s != null; s = reader.readLine()) {
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s = s.trim();
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if (s.startsWith("enum class ")) {//Enum class declaration
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enums.add(new EnumInfo(s.substring(11, s.length() - 2)));
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} else if (s.matches("[A-Z_]+,?") && !enums.isEmpty()) {//Enum value
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var enumValue = s.substring(0, s.length());
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if (enumValue.endsWith(",")) enumValue = enumValue.substring(0, enumValue.length() - 1);
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enums.get(enums.size() - 1).docMap.put(enumValue, new ArrayList<>(docAcc));
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} else if (s.startsWith("const val ")) {//Constand value to be substitute later if need
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int pos = s.indexOf(" = ");
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dictionary.put(s.substring(10, pos), s.substring(pos + 3));
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} else if (s.equals("/**")) {//Start of docuemntation block
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docAcc.clear();
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} else if (s.startsWith("* ")) {
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if (!s.contains("href")) {//Links are not supported, skip them
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docAcc.add(s.substring(2));
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}
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} else if (s.startsWith("var") || s.startsWith("val")) {//Restart accumulation
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acc.delete(0, acc.length());
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acc.append(s);
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} else if (s.isEmpty() && acc.length() > 0) {//Build model from accumulated lines
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s = acc.toString();
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acc.delete(0, acc.length());
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if (s.startsWith("var") || s.startsWith("val")) {
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var i = s.indexOf(" by ", 3);
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if (i > 0) {
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var key = s.substring(3, i).trim();
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if (key.contains(":")) {
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key = key.substring(0, key.lastIndexOf(':'));
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}
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PropertyModel model = new PropertyModel(key);
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models.add(model);
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s = s.substring(i + 7);
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i = s.indexOf("Property");
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if (i > 0) model.type = s.substring(0, i);
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if (i == 0) {
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i = s.indexOf('<', i);
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if (i != -1) {
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s = s.substring(i+1);
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i = s.indexOf('>');
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if (i != -1) {
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model.type = s.substring(0, i);
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}
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}
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}
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i = s.indexOf('(', i);
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if (i > 0) {
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s = s.substring(i + 1);
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var defaultValue = s.substring(0, s.indexOf(')')).trim();
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if (defaultValue.contains(",")) defaultValue = defaultValue.substring(0, defaultValue.indexOf(','));
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defaultValue = dictionary.getOrDefault(defaultValue, defaultValue);
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if (defaultValue.matches("[\\d_]+L")) {
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defaultValue = defaultValue.substring(0, defaultValue.length() - 1).replace("_", "");
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}
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if (defaultValue.matches("^\".+\"$")) {
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defaultValue = defaultValue.substring(1, defaultValue.length() - 1);
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}
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model.defaultValue = defaultValue;
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model.docLines.addAll(docAcc);
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}
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}
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}
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} else if (acc.length() > 0) {
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acc.append(" " + s);
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}
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}
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} catch (IOException ioe) {
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System.err.println("Unexpected error when processing " + sourceFileName);
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ioe.printStackTrace();
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}
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// Stage two: properties file rendering
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try (PrintWriter writer = new PrintWriter(new File(settingsResourceDir, settingsFileName))) {
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for (String apacheLine : apacheLines) {
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writer.println("# " + apacheLine);
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}
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for (PropertyModel model : models) {
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if (model.type.equals("Enum")) {
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String[] split = model.defaultValue.split("\\.");
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if (split.length > 1) {
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model.defaultValue = split[1];
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EnumInfo enumInfo = enums.stream().filter(new Predicate<EnumInfo>() {
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@Override
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public boolean test(EnumInfo enumInfo) {
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return enumInfo.className.equals(split[0]);
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}
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}).findFirst().orElse(null);
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if (enumInfo != null) {
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model.docLines.add("");
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for (Map.Entry<String, List<String>> entry : enumInfo.docMap.entrySet()) {
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String enumValue = entry.getKey();
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if (entry.getValue().size() == 1) {
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model.docLines.add(enumValue + ": " + entry.getValue().get(0));
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} else {
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model.docLines.add(enumValue);
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for (String line : entry.getValue()) {
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model.docLines.add(line);
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}
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}
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}
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}
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}
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}
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writer.println();
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writer.println("#");
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for (String docLine : model.docLines) {
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if (docLine.isEmpty()) {
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writer.println("#");
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} else {
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writer.println("# " + docLine);
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}
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}
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boolean defaultIsAlreadyMentioned = model.docLines.stream().anyMatch(new Predicate<String>() {
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@Override
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public boolean test(String s) {
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return s.toLowerCase(Locale.ROOT).contains("default");
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}
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});
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if (!defaultIsAlreadyMentioned) {
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writer.println("#");
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writer.println("# Default value is [" + model.defaultValue + "]");
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}
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writer.println("#" + model.key + "=" + model.defaultValue);
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}
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writer.flush();
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writer.close();
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} catch (IOException ioe) {
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System.err.println("Unexpected error when saving " + settingsFileName);
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ioe.printStackTrace();
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}
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}
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private static class PropertyModel {
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final String key;
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String type = "";
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String defaultValue = "";
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List<String> docLines = new ArrayList<>();
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PropertyModel(String key) {
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this.key = key;
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}
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}
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private static class EnumInfo {
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final String className;
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Map<String, List<String>> docMap = new LinkedHashMap<>();
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public EnumInfo(String className) {
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this.className = className;
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}
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}
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}

‎utbot-core/src/main/kotlin/org/utbot/common/AbstractSettings.kt‎

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Original file line numberDiff line numberDiff line change
@@ -11,6 +11,9 @@ import kotlin.reflect.KProperty
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interface SettingsContainer {
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fun <T> settingFor(defaultValue: T, converter: (String) -> T): PropertyDelegateProvider<Any?, ReadWriteProperty<Any?, T>>
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// Returns true iff some properties have non-default values
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fun isCustomized() = false
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}
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interface SettingsContainerFactory {
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}
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private val settingsValues: MutableMap<KProperty<*>, Any?> = mutableMapOf()
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private var customized: Boolean = false
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inner class SettingDelegate<T>(val property: KProperty<*>, val initializer: () -> T): ReadWriteProperty<Any?, T> {
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private var value = initializer()
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return PropertyDelegateProvider { _, property ->
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SettingDelegate(property) {
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try {
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properties.getProperty(property.name)?.let(converter) ?: defaultValue
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properties.getProperty(property.name)?.let {
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val parsedValue = converter.invoke(it)
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customized = customized or (parsedValue != defaultValue)
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return@SettingDelegate parsedValue
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}
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defaultValue
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} catch (e: Throwable) {
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logger.info(e) { e.message }
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defaultValue
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}
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}
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override fun isCustomized(): Boolean {
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return customized
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}
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override fun toString(): String =
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settingsValues
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.mapKeys { it.key.name }
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}
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}
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fun areCustomized(): Boolean = container.isCustomized()
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protected fun <T> getProperty(
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defaultValue: T,
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converter: (String) -> T

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