001 /*
002 * Sonar, open source software quality management tool.
003 * Copyright (C) 2008-2012 SonarSource
004 * mailto:contact AT sonarsource DOT com
005 *
006 * Sonar is free software; you can redistribute it and/or
007 * modify it under the terms of the GNU Lesser General Public
008 * License as published by the Free Software Foundation; either
009 * version 3 of the License, or (at your option) any later version.
010 *
011 * Sonar is distributed in the hope that it will be useful,
012 * but WITHOUT ANY WARRANTY; without even the implied warranty of
013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
014 * Lesser General Public License for more details.
015 *
016 * You should have received a copy of the GNU Lesser General Public
017 * License along with Sonar; if not, write to the Free Software
018 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02
019 */
020 package org.sonar.plugins.core.sensors;
021
022 import org.apache.commons.lang.NotImplementedException;
023 import org.apache.commons.lang.StringUtils;
024 import org.sonar.api.measures.Measure;
025 import org.sonar.api.measures.Metric;
026 import org.sonar.api.profiles.Alert;
027
028 public final class AlertUtils {
029 private AlertUtils() {
030 }
031
032 /**
033 * Get the matching alert level for the given measure
034 */
035 public static Metric.Level getLevel(Alert alert, Measure measure) {
036 if (evaluateAlert(alert, measure, Metric.Level.ERROR)) {
037 return Metric.Level.ERROR;
038 }
039 if (evaluateAlert(alert, measure, Metric.Level.WARN)) {
040 return Metric.Level.WARN;
041 }
042 return Metric.Level.OK;
043 }
044
045 private static boolean evaluateAlert(Alert alert, Measure measure, Metric.Level alertLevel) {
046 String valueToEval;
047 if (alertLevel.equals(Metric.Level.ERROR)) {
048 valueToEval = alert.getValueError();
049
050 } else if (alertLevel.equals(Metric.Level.WARN)) {
051 valueToEval = alert.getValueWarning();
052
053 } else {
054 throw new IllegalStateException(alertLevel.toString());
055 }
056
057 if (StringUtils.isEmpty(valueToEval)) {
058 return false;
059 }
060
061 Comparable criteriaValue = getValueForComparison(alert.getMetric(), valueToEval);
062 Comparable metricValue = getMeasureValue(alert.getMetric(), measure);
063
064 int comparison = metricValue.compareTo(criteriaValue);
065 return !(// NOSONAR complexity of this boolean expression is under control
066 (alert.isNotEqualsOperator() && comparison == 0) ||
067 (alert.isGreaterOperator() && comparison != 1) ||
068 (alert.isSmallerOperator() && comparison != -1) ||
069 (alert.isEqualsOperator() && comparison != 0)
070 );
071 }
072
073
074 private static Comparable<?> getValueForComparison(Metric metric, String value) {
075 if (metric.getType() == Metric.ValueType.FLOAT ||
076 metric.getType() == Metric.ValueType.PERCENT) {
077 return Double.parseDouble(value);
078 }
079 if (metric.getType() == Metric.ValueType.INT ||
080 metric.getType() == Metric.ValueType.MILLISEC) {
081 return value.contains(".") ? Integer.parseInt(value.substring(0, value.indexOf('.'))) : Integer.parseInt(value);
082 }
083 if (metric.getType() == Metric.ValueType.STRING ||
084 metric.getType() == Metric.ValueType.LEVEL) {
085 return value;
086 }
087 if (metric.getType() == Metric.ValueType.BOOL) {
088 return Integer.parseInt(value);
089 }
090 if (metric.getType() == Metric.ValueType.RATING) {
091 return Double.parseDouble(value);
092 }
093 throw new NotImplementedException(metric.getType().toString());
094 }
095
096 private static Comparable<?> getMeasureValue(Metric metric, Measure measure) {
097 if (metric.getType() == Metric.ValueType.FLOAT ||
098 metric.getType() == Metric.ValueType.PERCENT) {
099 return measure.getValue();
100 }
101 if (metric.getType() == Metric.ValueType.INT ||
102 metric.getType() == Metric.ValueType.MILLISEC) {
103 return measure.getValue().intValue();
104 }
105 if (metric.getType() == Metric.ValueType.STRING ||
106 metric.getType() == Metric.ValueType.LEVEL) {
107 return measure.getData();
108 }
109 if (metric.getType() == Metric.ValueType.BOOL) {
110 return measure.getValue().intValue();
111 }
112 if (metric.getType() == Metric.ValueType.RATING) {
113 return measure.getValue();
114 }
115 throw new NotImplementedException(metric.getType().toString());
116 }
117 }