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22 package org.hipparchus.optim;
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24 import java.util.Locale;
25 import java.util.MissingResourceException;
26 import java.util.ResourceBundle;
27
28 import org.hipparchus.exception.Localizable;
29 import org.hipparchus.exception.UTF8Control;
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45 public enum LocalizedOptimFormats implements Localizable {
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48 EQUAL_VERTICES_IN_SIMPLEX("equal vertices {0} and {1} in simplex configuration"),
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51 INVALID_IMPLEMENTATION("required functionality is missing in {0}"),
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54 NO_FEASIBLE_SOLUTION("no feasible solution"),
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57 SIMPLEX_NEED_ONE_POINT("simplex must contain at least one point"),
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60 TOO_SMALL_COST_RELATIVE_TOLERANCE("cost relative tolerance is too small ({0}), no further reduction in the sum of squares is possible"),
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63 TOO_SMALL_ORTHOGONALITY_TOLERANCE("orthogonality tolerance is too small ({0}), solution is orthogonal to the jacobian"),
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66 TOO_SMALL_PARAMETERS_RELATIVE_TOLERANCE("parameters relative tolerance is too small ({0}), no further improvement in the approximate solution is possible"),
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69 TRUST_REGION_STEP_FAILED("trust region step has failed to reduce Q"),
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72 UNABLE_TO_PERFORM_QR_DECOMPOSITION_ON_JACOBIAN("unable to perform Q.R decomposition on the {0}x{1} jacobian matrix"),
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75 UNABLE_TO_SOLVE_SINGULAR_PROBLEM("unable to solve: singular problem"),
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78 UNBOUNDED_SOLUTION("unbounded solution");
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81 private final String sourceFormat;
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87 LocalizedOptimFormats(final String sourceFormat) {
88 this.sourceFormat = sourceFormat;
89 }
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92 @Override
93 public String getSourceString() {
94 return sourceFormat;
95 }
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98 @Override
99 public String getLocalizedString(final Locale locale) {
100 try {
101 final String path = LocalizedOptimFormats.class.getName().replaceAll("\\.", "/");
102 ResourceBundle bundle =
103 ResourceBundle.getBundle("assets/" + path, locale, new UTF8Control());
104 if (bundle.getLocale().getLanguage().equals(locale.getLanguage())) {
105 final String translated = bundle.getString(name());
106 if ((translated != null) &&
107 (translated.length() > 0) &&
108 (!translated.toLowerCase(locale).contains("missing translation"))) {
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110 return translated;
111 }
112 }
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114 } catch (MissingResourceException mre) {
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116 }
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120 return sourceFormat;
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122 }
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124 }