| 1 | /* |
| 2 | * Copyright (c) 2001-2009, Jean Tessier |
| 3 | * All rights reserved. |
| 4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions |
| 7 | * are met: |
| 8 | * |
| 9 | * * Redistributions of source code must retain the above copyright |
| 10 | * notice, this list of conditions and the following disclaimer. |
| 11 | * |
| 12 | * * Redistributions in binary form must reproduce the above copyright |
| 13 | * notice, this list of conditions and the following disclaimer in the |
| 14 | * documentation and/or other materials provided with the distribution. |
| 15 | * |
| 16 | * * Neither the name of Jean Tessier nor the names of his contributors |
| 17 | * may be used to endorse or promote products derived from this software |
| 18 | * without specific prior written permission. |
| 19 | * |
| 20 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 21 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 22 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 23 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR |
| 24 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| 25 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| 26 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| 27 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
| 28 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
| 29 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| 30 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 31 | */ |
| 32 | |
| 33 | package com.jeantessier.metrics; |
| 34 | |
| 35 | import org.apache.log4j.*; |
| 36 | import org.xml.sax.*; |
| 37 | import org.xml.sax.helpers.*; |
| 38 | |
| 39 | public class MetricsConfigurationHandler extends DefaultHandler { |
| 40 | private static final int PROJECT = 0; |
| 41 | private static final int GROUP = 1; |
| 42 | private static final int CLASS = 2; |
| 43 | private static final int METHOD = 3; |
| 44 | |
| 45 | private MetricsConfiguration configuration; |
| 46 | private int section; |
| 47 | private MeasurementDescriptor descriptor; |
| 48 | private String name; |
| 49 | private String pattern; |
| 50 | |
| 51 | private StringBuffer currentName = new StringBuffer(); |
| 52 | |
| 53 | public MetricsConfigurationHandler() { |
| 54 | this(new MetricsConfiguration()); |
| 55 | } |
| 56 | |
| 57 | public MetricsConfigurationHandler(MetricsConfiguration configuration) { |
| 58 | this.configuration = configuration; |
| 59 | } |
| 60 | |
| 61 | public MetricsConfiguration getMetricsConfiguration() { |
| 62 | return configuration; |
| 63 | } |
| 64 | |
| 65 | public void startElement(String namespaceURI, String localName, String qName, Attributes atts) throws SAXException { |
| 66 | Logger.getLogger(getClass()).debug("startElement qName = " + qName); |
| 67 | |
| 68 | for (int i=0; i<atts.getLength(); i++) { |
| 69 | Logger.getLogger(getClass()).debug(" " + atts.getQName(i) + ": " + atts.getValue(i)); |
| 70 | } |
| 71 | |
| 72 | currentName.delete(0, currentName.length()); |
| 73 | |
| 74 | if (qName.equals("project-measurements")) { |
| 75 | section = PROJECT; |
| 76 | } else if (qName.equals("group-measurements")) { |
| 77 | section = GROUP; |
| 78 | } else if (qName.equals("class-measurements")) { |
| 79 | section = CLASS; |
| 80 | } else if (qName.equals("method-measurements")) { |
| 81 | section = METHOD; |
| 82 | } else if (qName.equals("measurement")) { |
| 83 | descriptor = new MeasurementDescriptor(); |
| 84 | |
| 85 | if (atts.getValue("visible") != null) { |
| 86 | descriptor.setVisible("true".equalsIgnoreCase(atts.getValue("visible")) || |
| 87 | "yes".equalsIgnoreCase(atts.getValue("visible")) || |
| 88 | "on".equalsIgnoreCase(atts.getValue("visible"))); |
| 89 | } |
| 90 | |
| 91 | if (atts.getValue("cached") != null) { |
| 92 | descriptor.setCached("true".equalsIgnoreCase(atts.getValue("cached")) || |
| 93 | "yes".equalsIgnoreCase(atts.getValue("cached")) || |
| 94 | "on".equalsIgnoreCase(atts.getValue("cached"))); |
| 95 | } |
| 96 | |
| 97 | switch (section) { |
| 98 | case PROJECT: |
| 99 | configuration.addProjectMeasurement(descriptor); |
| 100 | break; |
| 101 | case GROUP: |
| 102 | configuration.addGroupMeasurement(descriptor); |
| 103 | break; |
| 104 | case CLASS: |
| 105 | configuration.addClassMeasurement(descriptor); |
| 106 | break; |
| 107 | case METHOD: |
| 108 | configuration.addMethodMeasurement(descriptor); |
| 109 | break; |
| 110 | } |
| 111 | } |
| 112 | } |
| 113 | |
| 114 | public void endElement(String namespaceURI, String localName, String qName) throws SAXException { |
| 115 | if (qName.equals("short-name")) { |
| 116 | descriptor.setShortName(currentName.toString().trim()); |
| 117 | } else if (qName.equals("long-name")) { |
| 118 | descriptor.setLongName(currentName.toString().trim()); |
| 119 | } else if (qName.equals("class")) { |
| 120 | try { |
| 121 | descriptor.getClassForByName(currentName.toString().trim()); |
| 122 | } catch (ClassNotFoundException ex) { |
| 123 | throw new SAXException("Class not found: " + currentName.toString().trim()); |
| 124 | } |
| 125 | } else if (qName.equals("init")) { |
| 126 | descriptor.setInitText(currentName.toString().trim()); |
| 127 | } else if (qName.equals("lower-threshold")) { |
| 128 | descriptor.setLowerThreshold(currentName.toString().trim()); |
| 129 | } else if (qName.equals("upper-threshold")) { |
| 130 | descriptor.setUpperThreshold(currentName.toString().trim()); |
| 131 | } else if (qName.equals("name")) { |
| 132 | name = currentName.toString().trim(); |
| 133 | } else if (qName.equals("pattern")) { |
| 134 | pattern = currentName.toString().trim(); |
| 135 | } else if (qName.equals("group-definition")) { |
| 136 | configuration.addGroupDefinition(name, pattern); |
| 137 | } |
| 138 | |
| 139 | Logger.getLogger(getClass()).debug("endElement qName = " + qName + " (\"" + currentName.toString().trim() + "\")"); |
| 140 | } |
| 141 | |
| 142 | public void characters(char[] ch, int start, int length) throws SAXException { |
| 143 | currentName.append(ch, start, length); |
| 144 | Logger.getLogger(getClass()).debug("characters: \"" + new String(ch, start, length) + "\""); |
| 145 | } |
| 146 | } |