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Merge pull request into develop from random-generator

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2026-09-01 23:51:15 +04:00
committed by GitHub
parent f35ae15210 7700fc15da
commit 7d1e36917d
1 changed files with 35 additions and 39 deletions
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app/src/main/java/ru/project/random/RandomStudentGenerator.java
+35 -39
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@@ -1,30 +1,37 @@
package ru.project.random; package ru.project.random;
import java.util.Random;
import java.util.regex.Pattern;
import ru.project.collection.MyLinkedList; import ru.project.collection.MyLinkedList;
import ru.project.collection.MyList; import ru.project.collection.MyList;
import ru.project.student.Student; import ru.project.student.Student;
import java.util.Random;
import java.util.regex.Pattern;
import ru.project.student.StudentBuilder; import ru.project.student.StudentBuilder;
public class RandomStudentGenerator
public class RandomStudentGenerator { {
private static final Random RANDOM = new Random(); private static final Random RANDOM = new Random();
private String minGroupNumber; private String minGroupNumber;
private String maxGroupNumber; private String maxGroupNumber;
private Double minAverageGrade; private Double minAverageGrade;
private Double maxAverageGrade; private Double maxAverageGrade;
private Integer minRecordBookNumber; private Integer minRecordBookNumber;
private Integer maxRecordBookNumber; private Integer maxRecordBookNumber;
private static final double DEFAULT_MIN_GRADE = 0.0; private static final double DEFAULT_MIN_GRADE = 0.0;
private static final double DEFAULT_MAX_GRADE = 5.0; private static final double DEFAULT_MAX_GRADE = 5.0;
private static final int DEFAULT_MIN_RECORD_BOOK = 1; private static final int DEFAULT_MIN_RECORD_BOOK = 1;
private static final String GROUP_PATTERN_REGEX = "^[A-Z][0-9]{2}$"; private static final String GROUP_PATTERN_REGEX = "^[A-Z][0-9]{2}$";
private static final Pattern GROUP_PATTERN = Pattern.compile(GROUP_PATTERN_REGEX); private static final Pattern GROUP_PATTERN = Pattern.compile(GROUP_PATTERN_REGEX);
public RandomStudentGenerator setMinGroupNumber(String minGroupNumber) {
public RandomStudentGenerator setMinGroupNumber(String minGroupNumber) { if (minGroupNumber != null && !GROUP_PATTERN.matcher(minGroupNumber).matches()) {
if (minGroupNumber != null && !GROUP_PATTERN.matcher(minGroupNumber).matches()) { throw new IllegalArgumentException("minGroupNumber does not match Student group pattern: " + GROUP_PATTERN_REGEX);
throw new IllegalArgumentException( }
"minGroupNumber does not match Student group pattern: " + GROUP_PATTERN_REGEX); this.minGroupNumber = minGroupNumber;
return this;
}
public RandomStudentGenerator setMaxGroupNumber(String maxGroupNumber) {
if (maxGroupNumber != null && !GROUP_PATTERN.matcher(maxGroupNumber).matches()) {
throw new IllegalArgumentException("maxGroupNumber does not match Student group pattern: " + GROUP_PATTERN_REGEX);
}
this.maxGroupNumber = maxGroupNumber;
return this;
} }
this.minGroupNumber = minGroupNumber; this.minGroupNumber = minGroupNumber;
return this; return this;
@@ -106,23 +113,12 @@ public class RandomStudentGenerator {
return result; return result;
} }
private void validateRanges() { private double generateAverageGrade() {
double min = (minAverageGrade != null) ? minAverageGrade : DEFAULT_MIN_GRADE;
double effectiveMinGrade = (minAverageGrade != null) ? minAverageGrade : DEFAULT_MIN_GRADE; double max = (maxAverageGrade != null) ? maxAverageGrade : DEFAULT_MAX_GRADE;
double effectiveMaxGrade = (maxAverageGrade != null) ? maxAverageGrade : DEFAULT_MAX_GRADE; double range = max - min;
if (effectiveMinGrade > effectiveMaxGrade) { double grade = min + (range * RANDOM.nextDouble());
throw new IllegalArgumentException("minAverageGrade cannot be greater than maxAverageGrade"); return Math.round(grade * 100.0) / 100.0;
}
int effectiveMinRecord =
(minRecordBookNumber != null) ? minRecordBookNumber : DEFAULT_MIN_RECORD_BOOK;
int effectiveMaxRecord =
(maxRecordBookNumber != null) ? maxRecordBookNumber : Integer.MAX_VALUE;
if (effectiveMaxRecord == Integer.MAX_VALUE) {
effectiveMaxRecord = effectiveMinRecord + 999_999;
}
if (effectiveMinRecord > effectiveMaxRecord) {
throw new IllegalArgumentException(
"minRecordBookNumber cannot be greater than maxRecordBookNumber");
} }
if (minGroupNumber != null && maxGroupNumber != null) { if (minGroupNumber != null && maxGroupNumber != null) {
if (minGroupNumber.compareTo(maxGroupNumber) > 0) { if (minGroupNumber.compareTo(maxGroupNumber) > 0) {