1 | package de.ugoe.cs.eventbench.windows;
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2 |
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3 | import java.io.File;
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4 | import java.io.FileInputStream;
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5 | import java.io.FileNotFoundException;
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6 | import java.io.IOException;
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7 | import java.io.InputStreamReader;
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8 | import java.io.UnsupportedEncodingException;
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9 | import java.security.InvalidParameterException;
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10 | import java.util.LinkedList;
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11 | import java.util.List;
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12 | import java.util.SortedMap;
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13 | import java.util.TreeMap;
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14 |
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15 | import javax.xml.parsers.ParserConfigurationException;
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16 | import javax.xml.parsers.SAXParser;
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17 | import javax.xml.parsers.SAXParserFactory;
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18 |
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19 | import org.xml.sax.Attributes;
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20 | import org.xml.sax.InputSource;
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21 | import org.xml.sax.SAXException;
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22 | import org.xml.sax.SAXParseException;
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23 | import org.xml.sax.helpers.DefaultHandler;
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24 |
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25 | import de.ugoe.cs.eventbench.data.Event;
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26 | import de.ugoe.cs.eventbench.windows.data.WindowTree;
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27 | import de.ugoe.cs.eventbench.windows.data.WindowsMessage;
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28 | import de.ugoe.cs.util.StringTools;
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29 | import de.ugoe.cs.util.console.Console;
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30 |
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31 | public class LogParser extends DefaultHandler {
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32 |
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33 | private MessageHandler currentHandler;
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34 |
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35 | private WindowsMessage currentMessage;
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36 |
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37 | private SequenceSplitter sequenceSplitter;
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38 |
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39 | private List<List<Event<WindowsMessage>>> sequences;
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40 |
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41 | private SortedMap<Integer, Integer> typeCounter;
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42 |
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43 | private boolean countMessageOccurences;
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44 |
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45 | public LogParser() {
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46 | this(false);
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47 | }
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48 |
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49 | public LogParser(boolean countMessageOccurences) {
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50 | sequenceSplitter = new SequenceSplitter();
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51 | sequences = new LinkedList<List<Event<WindowsMessage>>>();
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52 | currentHandler = null;
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53 | this.countMessageOccurences = countMessageOccurences;
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54 | if( countMessageOccurences) {
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55 | typeCounter = new TreeMap<Integer, Integer>();
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56 | }
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57 |
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58 | }
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59 |
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60 | public List<List<Event<WindowsMessage>>> getSequences() {
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61 | return sequences;
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62 | }
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63 |
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64 | @Override
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65 | public void startElement(String uri, String localName, String qName, Attributes atts) throws SAXException {
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66 | if( qName.equals("session") ) {
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67 | Console.traceln("start of session");
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68 | sequenceSplitter = new SequenceSplitter();
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69 | }
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70 | else if( qName.equals("msg") ) {
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71 | String msgType = atts.getValue("type");
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72 | int msgInt = -1;
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73 | try {
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74 | msgInt = Integer.parseInt(msgType);
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75 |
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76 | if( countMessageOccurences ) {
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77 | Integer currentCount = typeCounter.get(msgInt);
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78 | if( currentCount==null ) {
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79 | typeCounter.put(msgInt, 1);
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80 | } else {
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81 | typeCounter.put(msgInt, currentCount+1);
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82 | }
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83 | }
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84 |
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85 | if( msgInt==MessageDefs.WM_CREATE ) {
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86 | currentHandler = new HandlerCreate();
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87 | currentHandler.onStartElement();
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88 | }
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89 | else if( msgInt==MessageDefs.WM_DESTROY ) {
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90 | currentHandler = new HandlerDestroy();
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91 | currentHandler.onStartElement();
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92 | }
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93 | else if( msgInt==MessageDefs.WM_SETTEXT ) {
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94 | currentHandler = new HandlerSetText();
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95 | currentHandler.onStartElement();
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96 | } else {
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97 | currentMessage = new WindowsMessage(msgInt);
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98 | }
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99 | } catch(NumberFormatException e) {
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100 | Console.printerrln("Invalid message type: type not a number");
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101 | e.printStackTrace();
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102 | }
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103 | }
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104 | else if( qName.equals("param") ) {
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105 | if( currentHandler!=null ) {
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106 | currentHandler.onParameter(atts.getValue("name"), atts.getValue("value"));
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107 | } else {
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108 | currentMessage.addParameter(atts.getValue("name"), atts.getValue("value"));
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109 | }
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110 | }
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111 | }
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112 |
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113 | @Override
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114 | public void endElement(String uri, String localName, String qName) throws SAXException {
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115 | if( qName.equals("msg") ) {
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116 | if( currentHandler!=null ) {
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117 | currentHandler.onEndElement();
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118 | currentHandler = null;
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119 | } else {
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120 | try {
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121 | currentMessage.setTarget(WindowTree.getInstance());
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122 | sequenceSplitter.addMessage(currentMessage);
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123 | } catch (InvalidParameterException e) {
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124 | Console.traceln(e.getMessage() + " WindowsMessage " + currentMessage + " ignored.");
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125 | }
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126 | }
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127 | }
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128 | else if(qName.equals("session")) {
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129 | sequenceSplitter.endSession();
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130 | sequences.add(sequenceSplitter.getSequence());
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131 | Console.traceln("end of session");
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132 | }
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133 | }
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134 |
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135 | public void parseFile(String filename) {
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136 | if( filename==null ) {
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137 | throw new InvalidParameterException("filename must not be null");
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138 | }
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139 |
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140 | SAXParserFactory spf = SAXParserFactory.newInstance();
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141 | spf.setValidating(true);
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142 |
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143 | SAXParser saxParser = null;
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144 | InputSource inputSource = null;
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145 | try {
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146 | saxParser = spf.newSAXParser();
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147 | inputSource = new InputSource(new InputStreamReader(new FileInputStream(filename), "UTF-16"));
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148 | } catch (UnsupportedEncodingException e) {
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149 | e.printStackTrace();
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150 | } catch (ParserConfigurationException e) {
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151 | e.printStackTrace();
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152 | } catch (SAXException e) {
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153 | e.printStackTrace();
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154 | } catch (FileNotFoundException e) {
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155 | e.printStackTrace();
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156 | }
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157 | if( inputSource!=null ) {
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158 | inputSource.setSystemId("file://" + new File(filename).getAbsolutePath());
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159 | try {
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160 | if( saxParser==null) {
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161 | throw new RuntimeException("SAXParser creation failed");
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162 | }
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163 | saxParser.parse(inputSource, this);
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164 | } catch (SAXParseException e) {
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165 | Console.printerrln("Failure parsing file in line " + e.getLineNumber() + ", column " + e.getColumnNumber() +".");
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166 | e.printStackTrace();
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167 | } catch (SAXException e) {
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168 | e.printStackTrace();
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169 | } catch (IOException e) {
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170 | e.printStackTrace();
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171 | }
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172 | }
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173 | if( countMessageOccurences ) {
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174 | Console.println("Message statistics:");
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175 | Console.println(typeCounter.toString().replace(" ", StringTools.ENDLINE).replaceAll("[\\{\\}]",""));
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176 | }
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177 | }
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178 | }
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