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package ru.ulstu.extractor.assessment.service;
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import org.springframework.stereotype.Service;
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import ru.ulstu.extractor.assessment.model.Assessment;
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import ru.ulstu.extractor.rule.model.AssessmentException;
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import ru.ulstu.extractor.rule.model.DbRule;
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import ru.ulstu.extractor.rule.service.AntecedentValueService;
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import ru.ulstu.extractor.rule.service.DbRuleService;
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import ru.ulstu.extractor.rule.service.FuzzyInferenceService;
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import ru.ulstu.extractor.ts.model.TimeSeries;
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import ru.ulstu.extractor.ts.model.TimeSeriesValue;
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import ru.ulstu.extractor.ts.service.TimeSeriesService;
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import java.util.ArrayList;
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import java.util.Comparator;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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import java.util.stream.Collectors;
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@Service
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public class AssessmentService {
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private final DbRuleService ruleService;
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private final AntecedentValueService antecedentValueService;
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private final TimeSeriesService timeSeriesService;
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private final FuzzyInferenceService fuzzyInferenceService;
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public AssessmentService(DbRuleService ruleService,
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AntecedentValueService antecedentValueService,
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TimeSeriesService timeSeriesService,
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FuzzyInferenceService fuzzyInferenceService) {
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this.ruleService = ruleService;
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this.antecedentValueService = antecedentValueService;
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this.timeSeriesService = timeSeriesService;
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this.fuzzyInferenceService = fuzzyInferenceService;
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||||
}
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||||
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||||
public List<Assessment> getAssessmentsByForecastTendencies(Integer branchId) {
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List<TimeSeries> timeSeries = timeSeriesService.getByBranch(branchId);
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||||
List<DbRule> dbRules = ruleService.getList();
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||||
try {
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||||
return getAssessmentsByTimeSeriesTendencies(dbRules, timeSeries);
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||||
} catch (AssessmentException ex) {
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||||
ex.printStackTrace();
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||||
return new ArrayList<>();
|
||||
}
|
||||
}
|
||||
|
||||
public List<Assessment> getAssessmentsByLastValues(Integer branchId) {
|
||||
List<TimeSeries> timeSeries = timeSeriesService.getByBranch(branchId);
|
||||
List<DbRule> dbRules = ruleService.getList();
|
||||
return getAssessmentsByLastValues(dbRules, timeSeries);
|
||||
}
|
||||
|
||||
private List<Assessment> getSingleAssessmentByTimeSeriesTendencies(List<DbRule> dbRules, List<TimeSeries> timeSeries) throws AssessmentException {
|
||||
Map<String, Double> variableValues = new HashMap<>();
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||||
timeSeries.forEach(ts -> variableValues.put(ts.getTimeSeriesType().name(),
|
||||
timeSeriesService.getLastTimeSeriesTendency(ts)
|
||||
.orElseThrow(() -> new AssessmentException(""))));
|
||||
return fuzzyInferenceService.getFuzzyInference(dbRules,
|
||||
antecedentValueService.getList(),
|
||||
variableValues,
|
||||
getTSsMin(timeSeries),
|
||||
getTSsMax(timeSeries));
|
||||
}
|
||||
|
||||
private List<Assessment> getAssessmentsByTimeSeriesTendencies(List<DbRule> dbRules, List<TimeSeries> timeSeries) {
|
||||
return dbRules
|
||||
.stream()
|
||||
.flatMap(dbRule -> {
|
||||
Map<String, Double> variableValues = new HashMap<>();
|
||||
timeSeries
|
||||
.stream()
|
||||
.filter(ts -> ts.getTimeSeriesType() == dbRule.getFirstAntecedent()
|
||||
|| ts.getTimeSeriesType() == dbRule.getSecondAntecedent())
|
||||
.forEach(ts -> variableValues.put(ts.getTimeSeriesType().name(), timeSeriesService
|
||||
.getLastTimeSeriesTendency(ts)
|
||||
.orElse(ts.getValues().get(ts.getValues().size() - 1).getValue())));
|
||||
return fuzzyInferenceService.getFuzzyInference(List.of(dbRule),
|
||||
antecedentValueService.getList(),
|
||||
variableValues,
|
||||
getTSsMin(timeSeries),
|
||||
getTSsMax(timeSeries)).stream();
|
||||
})
|
||||
.sorted(Comparator.comparing(Assessment::getDegree))
|
||||
.collect(Collectors.toList());
|
||||
}
|
||||
|
||||
private List<Assessment> getAssessmentsByLastValues(List<DbRule> dbRules, List<TimeSeries> timeSeries) {
|
||||
Map<String, Double> variableValues = new HashMap<>();
|
||||
timeSeries.forEach(ts -> variableValues.put(ts.getTimeSeriesType().name(), ts.getValues().get(ts.getValues().size() - 1).getValue()));
|
||||
return fuzzyInferenceService.getFuzzyInference(dbRules,
|
||||
antecedentValueService.getList(),
|
||||
variableValues,
|
||||
getTSsMin(timeSeries),
|
||||
getTSsMax(timeSeries));
|
||||
}
|
||||
|
||||
private Double getMin(List<Double> values) {
|
||||
return values.stream().mapToDouble(v -> v).min().getAsDouble();
|
||||
}
|
||||
|
||||
private Map.Entry<String, Double> getTSMin(TimeSeries ts) {
|
||||
return Map.entry(ts.getTimeSeriesType().name(),
|
||||
getMin(ts.getValues().stream().map(TimeSeriesValue::getValue).collect(Collectors.toList())));
|
||||
}
|
||||
|
||||
private Map<String, Double> getTSsMin(List<TimeSeries> tss) {
|
||||
Map<String, Double> res = new HashMap<>();
|
||||
tss.forEach(ts -> {
|
||||
Map.Entry<String, Double> entry = getTSMin(ts);
|
||||
res.put(entry.getKey(), entry.getValue());
|
||||
});
|
||||
return res;
|
||||
}
|
||||
|
||||
private Double getMax(List<Double> values) {
|
||||
return values.stream().mapToDouble(v -> v).max().getAsDouble();
|
||||
}
|
||||
|
||||
private Map.Entry<String, Double> getTSMax(TimeSeries ts) {
|
||||
return Map.entry(ts.getTimeSeriesType().name(),
|
||||
getMax(ts.getValues().stream().map(TimeSeriesValue::getValue).collect(Collectors.toList())));
|
||||
}
|
||||
|
||||
private Map<String, Double> getTSsMax(List<TimeSeries> tss) {
|
||||
Map<String, Double> res = new HashMap<>();
|
||||
tss.forEach(ts -> {
|
||||
Map.Entry<String, Double> entry = getTSMax(ts);
|
||||
res.put(entry.getKey(), entry.getValue());
|
||||
});
|
||||
return res;
|
||||
}
|
||||
}
|
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Reference in New Issue