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Code Issues Releases Wiki Activity

improve unassigned reason tracker

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oblonski 2017-06-29 12:31:54 +02:00
parent f647884184
commit ecea356c54
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1 changed files with 46 additions and 25 deletions
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71
jsprit-core/src/main/java/com/graphhopper/jsprit/core/util/UnassignedJobReasonTracker.java
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@ -29,9 +29,9 @@ import java.util.*;
*/
public class UnassignedJobReasonTracker implements JobUnassignedListener {
public static String getMostLikely(Frequency reasons) {
if (reasons == null) return "no reason found";
Iterator<Map.Entry<Comparable<?>, Long>> entryIterator = reasons.entrySetIterator();
public static String getMostLikelyFailedConstraintName(Frequency failedConstraintNamesFrequency) {
if (failedConstraintNamesFrequency == null) return "no reason found";
Iterator<Map.Entry<Comparable<?>, Long>> entryIterator = failedConstraintNamesFrequency.entrySetIterator();
int maxCount = 0;
String mostLikely = null;
while (entryIterator.hasNext()) {
@ -44,19 +44,19 @@ public class UnassignedJobReasonTracker implements JobUnassignedListener {
return mostLikely;
}
Map<String, Frequency> reasons = new HashMap<>();
Map<String, Frequency> failedConstraintNamesFrequencyMapping = new HashMap<>();
Map<Integer, String> codesToReason = new HashMap<>();
Map<Integer, String> codesToHumanReadableReason = new HashMap<>();
Map<String, Integer> failedConstraintNamesToCode = new HashMap<>();
Set<String> constraintsToBeIgnored = new HashSet<>();
Set<String> failedConstraintNamesToBeIgnored = new HashSet<>();
public UnassignedJobReasonTracker() {
codesToReason.put(1, "cannot serve required skill");
codesToReason.put(2, "cannot be visited within time window");
codesToReason.put(3, "does not fit into any vehicle due to capacity");
codesToReason.put(4, "cannot be assigned due to max distance constraint of vehicle");
codesToHumanReadableReason.put(1, "cannot serve required skill");
codesToHumanReadableReason.put(2, "cannot be visited within time window");
codesToHumanReadableReason.put(3, "does not fit into any vehicle due to capacity");
codesToHumanReadableReason.put(4, "cannot be assigned due to max distance constraint of vehicle");
failedConstraintNamesToCode.put("HardSkillConstraint", 1);
failedConstraintNamesToCode.put("VehicleDependentTimeWindowConstraints", 2);
@ -67,24 +67,24 @@ public class UnassignedJobReasonTracker implements JobUnassignedListener {
}
public void ignore(String simpleNameOfConstraint) {
constraintsToBeIgnored.add(simpleNameOfConstraint);
failedConstraintNamesToBeIgnored.add(simpleNameOfConstraint);
}
@Override
public void informJobUnassigned(Job unassigned, Collection<String> failedConstraintNames) {
if (!this.reasons.containsKey(unassigned.getId())) {
this.reasons.put(unassigned.getId(), new Frequency());
if (!this.failedConstraintNamesFrequencyMapping.containsKey(unassigned.getId())) {
this.failedConstraintNamesFrequencyMapping.put(unassigned.getId(), new Frequency());
}
for (String r : failedConstraintNames) {
if (constraintsToBeIgnored.contains(r)) continue;
this.reasons.get(unassigned.getId()).addValue(r);
if (failedConstraintNamesToBeIgnored.contains(r)) continue;
this.failedConstraintNamesFrequencyMapping.get(unassigned.getId()).addValue(r);
}
}
public void put(String simpleNameOfFailedConstraint, int code, String reason) {
if (code <= 20)
throw new IllegalArgumentException("first 20 codes are reserved internally. choose a code > 20");
codesToReason.put(code, reason);
codesToHumanReadableReason.put(code, reason);
if (failedConstraintNamesToCode.containsKey(simpleNameOfFailedConstraint)) {
throw new IllegalArgumentException(simpleNameOfFailedConstraint + " already assigned to code and reason");
} else failedConstraintNamesToCode.put(simpleNameOfFailedConstraint, code);
@ -95,8 +95,18 @@ public class UnassignedJobReasonTracker implements JobUnassignedListener {
*
* @return
*/
@Deprecated
public Map<String, Frequency> getReasons() {
return Collections.unmodifiableMap(reasons);
return Collections.unmodifiableMap(failedConstraintNamesFrequencyMapping);
}
/**
* For each job id, it returns frequency distribution of failed constraints (simple name of constraint) in an unmodifiable map.
*
* @return
*/
public Map<String, Frequency> getFailedConstraintNamesFrequencyMapping() {
return Collections.unmodifiableMap(failedConstraintNamesFrequencyMapping);
}
/**
@ -105,7 +115,7 @@ public class UnassignedJobReasonTracker implements JobUnassignedListener {
* @return
*/
public Map<Integer, String> getCodesToReason() {
return Collections.unmodifiableMap(codesToReason);
return Collections.unmodifiableMap(codesToHumanReadableReason);
}
/**
@ -117,6 +127,17 @@ public class UnassignedJobReasonTracker implements JobUnassignedListener {
return Collections.unmodifiableMap(failedConstraintNamesToCode);
}
public int getCode(String failedConstraintName) {
return toCode(failedConstraintName);
}
public String getHumanReadableReason(int code) {
return getCodesToReason().get(code);
}
public String getHumanReadableReason(String failedConstraintName) {
return getCodesToReason().get(getCode(failedConstraintName));
}
/**
* Returns the most likely reason code i.e. the reason (failed constraint) being observed most often.
*
@ -129,9 +150,9 @@ public class UnassignedJobReasonTracker implements JobUnassignedListener {
* @return
*/
public int getMostLikelyReasonCode(String jobId) {
if (!this.reasons.containsKey(jobId)) return -1;
Frequency reasons = this.reasons.get(jobId);
String mostLikelyReason = getMostLikely(reasons);
if (!this.failedConstraintNamesFrequencyMapping.containsKey(jobId)) return -1;
Frequency reasons = this.failedConstraintNamesFrequencyMapping.get(jobId);
String mostLikelyReason = getMostLikelyFailedConstraintName(reasons);
return toCode(mostLikelyReason);
}
@ -142,12 +163,12 @@ public class UnassignedJobReasonTracker implements JobUnassignedListener {
* @return
*/
public String getMostLikelyReason(String jobId) {
if (!this.reasons.containsKey(jobId)) return "no reason found";
Frequency reasons = this.reasons.get(jobId);
String mostLikelyReason = getMostLikely(reasons);
if (!this.failedConstraintNamesFrequencyMapping.containsKey(jobId)) return "no reason found";
Frequency reasons = this.failedConstraintNamesFrequencyMapping.get(jobId);
String mostLikelyReason = getMostLikelyFailedConstraintName(reasons);
int code = toCode(mostLikelyReason);
if (code == -1) return mostLikelyReason;
else return codesToReason.get(code);
else return codesToHumanReadableReason.get(code);
}
private int toCode(String mostLikelyReason) {