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 } else {
053 throw new IllegalStateException(alertLevel.toString());
054 }
055 if (StringUtils.isEmpty(valueToEval)) {
056 return false;
057 }
058
059 Comparable criteriaValue = getValueForComparison(alert.getMetric(), valueToEval);
060 Comparable metricValue = getMeasureValue(alert.getMetric(), measure);
061
062 int comparison = metricValue.compareTo(criteriaValue);
063 if (alert.isNotEqualsOperator() && comparison == 0 ||
064 alert.isGreaterOperator() && comparison != 1 ||
065 alert.isSmallerOperator() && comparison != -1 ||
066 alert.isEqualsOperator() && comparison != 0) {
067 return false;
068 }
069 return true;
070 }
071
072
073 private static Comparable<?> getValueForComparison(Metric metric, String value) {
074 if (metric.getType() == Metric.ValueType.FLOAT ||
075 metric.getType() == Metric.ValueType.PERCENT) {
076 return Double.parseDouble(value);
077 }
078 if (metric.getType() == Metric.ValueType.INT ||
079 metric.getType() == Metric.ValueType.MILLISEC) {
080 return value.contains(".") ? Integer.parseInt(value.substring(0, value.indexOf('.'))) : Integer.parseInt(value);
081 }
082 if (metric.getType() == Metric.ValueType.STRING ||
083 metric.getType() == Metric.ValueType.LEVEL) {
084 return value;
085 }
086 if (metric.getType() == Metric.ValueType.BOOL) {
087 return Boolean.valueOf(value);
088 }
089 if (metric.getType() == Metric.ValueType.RATING) {
090 return Double.parseDouble(value);
091 }
092 throw new NotImplementedException(metric.getType().toString());
093 }
094
095 private static Comparable<?> getMeasureValue(Metric metric, Measure measure) {
096 if (metric.getType() == Metric.ValueType.FLOAT ||
097 metric.getType() == Metric.ValueType.PERCENT) {
098 return measure.getValue();
099 }
100 if (metric.getType() == Metric.ValueType.INT ||
101 metric.getType() == Metric.ValueType.MILLISEC) {
102 return measure.getValue().intValue();
103 }
104 if (metric.getType() == Metric.ValueType.STRING ||
105 metric.getType() == Metric.ValueType.LEVEL) {
106 return measure.getData();
107 }
108 if (metric.getType() == Metric.ValueType.BOOL) {
109 return measure.getValue() == 0d ? Boolean.FALSE : Boolean.TRUE;
110 }
111 if (metric.getType() == Metric.ValueType.RATING) {
112 return measure.getValue();
113 }
114 throw new NotImplementedException(metric.getType().toString());
115 }
116 }