org.eclipse.linuxtools.tmf.ui/src/org/eclipse/linuxtools/tmf/ui/parsers/custom/CustomTxtTrace.java

   1 /*******************************************************************************
   2  * Copyright (c) 2010 Ericsson
   3  *
   4  * All rights reserved. This program and the accompanying materials are
   5  * made available under the terms of the Eclipse Public License v1.0 which
   6  * accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *   Patrick Tasse - Initial API and implementation
  11  *******************************************************************************/
  12
  13 package org.eclipse.linuxtools.tmf.ui.parsers.custom;
  14
  15 import java.io.File;
  16 import java.io.FileNotFoundException;
  17 import java.io.IOException;
  18 import java.util.HashMap;
  19 import java.util.Iterator;
  20 import java.util.List;
  21 import java.util.Map.Entry;
  22 import java.util.regex.Matcher;
  23
  24 import org.eclipse.linuxtools.tmf.event.TmfEvent;
  25 import org.eclipse.linuxtools.tmf.event.TmfEventReference;
  26 import org.eclipse.linuxtools.tmf.event.TmfEventSource;
  27 import org.eclipse.linuxtools.tmf.event.TmfTimestamp;
  28 import org.eclipse.linuxtools.tmf.io.BufferedRandomAccessFile;
  29 import org.eclipse.linuxtools.tmf.trace.ITmfContext;
  30 import org.eclipse.linuxtools.tmf.trace.ITmfLocation;
  31 import org.eclipse.linuxtools.tmf.trace.ITmfTrace;
  32 import org.eclipse.linuxtools.tmf.trace.TmfContext;
  33 import org.eclipse.linuxtools.tmf.trace.TmfLocation;
  34 import org.eclipse.linuxtools.tmf.trace.TmfTrace;
  35 import org.eclipse.linuxtools.tmf.ui.parsers.custom.CustomTxtTraceDefinition.InputLine;
  36
  37 public class CustomTxtTrace extends TmfTrace<CustomTxtEvent> {
  38
  39     private static final TmfLocation<Long> NULL_LOCATION = new TmfLocation<Long>((Long) null);
  40
  41     private CustomTxtTraceDefinition fDefinition;
  42     private CustomTxtEventType fEventType;
  43
  44     public CustomTxtTrace(String name, CustomTxtTraceDefinition definition, String path, int cacheSize) throws FileNotFoundException {
  45         super(name, CustomTxtEvent.class, path, cacheSize);
  46         fDefinition = definition;
  47         fEventType = new CustomTxtEventType(fDefinition);
  48     }
  49
  50         @Override
  51     public ITmfTrace createTraceCopy() {
  52         // TODO Auto-generated method stub
  53         return null;
  54     }
  55
  56     @Override
  57     public TmfContext seekLocation(ITmfLocation<?> location) {
  58         //System.out.println(Thread.currentThread().getName() + "::" + getName() + " seekLocation(" + ((location == null || location.getLocation() == null) ? "null" : location) + ")");
  59         //new Throwable().printStackTrace();
  60         CustomTxtTraceContext context = new CustomTxtTraceContext(NULL_LOCATION, ITmfContext.INITIAL_RANK);
  61         if (NULL_LOCATION.equals(location) || !new File(getPath()).isFile()) {
  62             return context;
  63         }
  64         try {
  65             BufferedRandomAccessFile raFile = new BufferedRandomAccessFile(getPath(), "r"); //$NON-NLS-1$
  66             if (location != null && location.getLocation() instanceof Long) {
  67                 raFile.seek((Long)location.getLocation());
  68             }
  69             String line;
  70             long rawPos = raFile.getFilePointer();
  71             while ((line = raFile.getNextLine()) != null) {
  72                 for (InputLine input : getFirstLines()) {
  73                     Matcher matcher = input.getPattern().matcher(line);
  74                     if (matcher.find()) {
  75                         context.setLocation(new TmfLocation<Long>(rawPos));
  76                         context.raFile = raFile;
  77                         context.firstLineMatcher = matcher;
  78                         context.firstLine = line;
  79                         context.nextLineLocation = raFile.getFilePointer();
  80                         context.inputLine = input;
  81                         return context;
  82                     }
  83                 }
  84                 rawPos = raFile.getFilePointer();
  85             }
  86             return context;
  87         } catch (FileNotFoundException e) {
  88             e.printStackTrace();
  89             return context;
  90         } catch (IOException e) {
  91             e.printStackTrace();
  92             return context;
  93         }
  94
  95     }
  96
  97     @Override
  98     public TmfContext seekLocation(double ratio) {
  99         try {
 100             BufferedRandomAccessFile raFile = new BufferedRandomAccessFile(getPath(), "r"); //$NON-NLS-1$
 101             long pos = (long) (ratio * raFile.length());
 102             while (pos > 0) {
 103                 raFile.seek(pos - 1);
 104                 if (raFile.read() == '\n') break;
 105                 pos--;
 106             }
 107             ITmfLocation<?> location = new TmfLocation<Long>(new Long(pos));
 108             TmfContext context = seekLocation(location);
 109             context.setRank(ITmfContext.UNKNOWN_RANK);
 110             return context;
 111         } catch (FileNotFoundException e) {
 112             e.printStackTrace();
 113             return new CustomTxtTraceContext(NULL_LOCATION, ITmfContext.INITIAL_RANK);
 114         } catch (IOException e) {
 115             e.printStackTrace();
 116             return new CustomTxtTraceContext(NULL_LOCATION, ITmfContext.INITIAL_RANK);
 117         }
 118     }
 119
 120     @Override
 121     public double getLocationRatio(ITmfLocation<?> location) {
 122         try {
 123             if (location.getLocation() instanceof Long) {
 124                 BufferedRandomAccessFile raFile = new BufferedRandomAccessFile(getPath(), "r"); //$NON-NLS-1$
 125                 return (double) ((Long) location.getLocation()) / raFile.length();
 126             }
 127         } catch (FileNotFoundException e) {
 128             e.printStackTrace();
 129         } catch (IOException e) {
 130             e.printStackTrace();
 131         }
 132         return 0;
 133     }
 134
 135     @Override
 136     public ITmfLocation<?> getCurrentLocation() {
 137         // TODO Auto-generated method stub
 138         return null;
 139     }
 140
 141     @Override
 142     public synchronized TmfEvent getNextEvent(TmfContext context) {
 143         ITmfContext savedContext = context.clone();
 144         TmfEvent event = parseEvent(context);
 145         if (event != null) {
 146             updateIndex(savedContext, savedContext.getRank(), event.getTimestamp());
 147             context.updateRank(1);
 148         }
 149         return event;
 150     }
 151
 152     @Override
 153     public TmfEvent parseEvent(TmfContext tmfContext) {
 154         //System.out.println(Thread.currentThread().getName() + ":: " + getName() + " parseEvent(" + tmfContext.getRank() + " @ " + (tmfContext.getLocation().getLocation() == null ? "null" : tmfContext.getLocation()));
 155         if (!(tmfContext instanceof CustomTxtTraceContext)) {
 156             return null;
 157         }
 158
 159         CustomTxtTraceContext context = (CustomTxtTraceContext) tmfContext;
 160         if (!(context.getLocation().getLocation() instanceof Long) || NULL_LOCATION.equals(context.getLocation())) {
 161             return null;
 162         }
 163
 164         CustomTxtEvent event = parseFirstLine(context);
 165
 166         HashMap<InputLine, Integer> countMap = new HashMap<InputLine, Integer>();
 167         InputLine currentInput = null;
 168         if (context.inputLine.childrenInputs != null && context.inputLine.childrenInputs.size() > 0) {
 169             currentInput = context.inputLine.childrenInputs.get(0);
 170             countMap.put(currentInput, 0);
 171         }
 172
 173         synchronized (context.raFile) {
 174             try {
 175                 if (context.raFile.getFilePointer() != context.nextLineLocation) {
 176                     context.raFile.seek(context.nextLineLocation);
 177                 }
 178                 String line;
 179                 long rawPos = context.raFile.getFilePointer();
 180                 while ((line = context.raFile.getNextLine()) != null) {
 181                     boolean processed = false;
 182                     if (currentInput == null) {
 183                         for (InputLine input : getFirstLines()) {
 184                             Matcher matcher = input.getPattern().matcher(line);
 185                             if (matcher.find()) {
 186                                 context.setLocation(new TmfLocation<Long>(rawPos));
 187                                 context.firstLineMatcher = matcher;
 188                                 context.firstLine = line;
 189                                 context.nextLineLocation = context.raFile.getFilePointer();
 190                                 context.inputLine = input;
 191                                 return event;
 192                             }
 193                         }
 194                     } else {
 195                         if (countMap.get(currentInput) >= currentInput.getMinCount()) {
 196                             List<InputLine> nextInputs = currentInput.getNextInputs(countMap);
 197                             if (nextInputs.size() == 0 || nextInputs.get(nextInputs.size() - 1).getMinCount() == 0) {
 198                                 for (InputLine input : getFirstLines()) {
 199                                     Matcher matcher = input.getPattern().matcher(line);
 200                                     if (matcher.find()) {
 201                                         context.setLocation(new TmfLocation<Long>(rawPos));
 202                                         context.firstLineMatcher = matcher;
 203                                         context.firstLine = line;
 204                                         context.nextLineLocation = context.raFile.getFilePointer();
 205                                         context.inputLine = input;
 206                                         return event;
 207                                     }
 208                                 }
 209                             }
 210                             for (InputLine input : nextInputs) {
 211                                 Matcher matcher = input.getPattern().matcher(line);
 212                                 if (matcher.find()) {
 213                                     event.processGroups(input, matcher);
 214                                     currentInput = input;
 215                                     if (countMap.get(currentInput) == null) {
 216                                         countMap.put(currentInput, 1);
 217                                     } else {
 218                                         countMap.put(currentInput, countMap.get(currentInput) + 1);
 219                                     }
 220                                     Iterator<InputLine> iter = countMap.keySet().iterator();
 221                                     while (iter.hasNext()) {
 222                                         InputLine inputLine = iter.next();
 223                                         if (inputLine.level > currentInput.level) {
 224                                             iter.remove();
 225                                         }
 226                                     }
 227                                     if (currentInput.childrenInputs != null && currentInput.childrenInputs.size() > 0) {
 228                                         currentInput = currentInput.childrenInputs.get(0);
 229                                         countMap.put(currentInput, 0);
 230                                     } else {
 231                                         if (countMap.get(currentInput) >= currentInput.getMaxCount()) {
 232                                             if (currentInput.getNextInputs(countMap).size() > 0) {
 233                                                 currentInput = currentInput.getNextInputs(countMap).get(0);
 234                                                 if (countMap.get(currentInput) == null) {
 235                                                     countMap.put(currentInput, 0);
 236                                                 }
 237                                                 iter = countMap.keySet().iterator();
 238                                                 while (iter.hasNext()) {
 239                                                     InputLine inputLine = iter.next();
 240                                                     if (inputLine.level > currentInput.level) {
 241                                                         iter.remove();
 242                                                     }
 243                                                 }
 244                                             } else {
 245                                                 currentInput = null;
 246                                             }
 247                                         }
 248                                     }
 249                                     processed = true;
 250                                     break;
 251                                 }
 252                             }
 253                         }
 254                         if (! processed) {
 255                             Matcher matcher = currentInput.getPattern().matcher(line);
 256                             if (matcher.find()) {
 257                                 event.processGroups(currentInput, matcher);
 258                                 countMap.put(currentInput, countMap.get(currentInput) + 1);
 259                                 if (currentInput.childrenInputs != null && currentInput.childrenInputs.size() > 0) {
 260                                     currentInput = currentInput.childrenInputs.get(0);
 261                                     countMap.put(currentInput, 0);
 262                                 } else {
 263                                     if (countMap.get(currentInput) >= currentInput.getMaxCount()) {
 264                                         if (currentInput.getNextInputs(countMap).size() > 0) {
 265                                             currentInput = currentInput.getNextInputs(countMap).get(0);
 266                                             if (countMap.get(currentInput) == null) {
 267                                                 countMap.put(currentInput, 0);
 268                                             }
 269                                             Iterator<InputLine> iter = countMap.keySet().iterator();
 270                                             while (iter.hasNext()) {
 271                                                 InputLine inputLine = iter.next();
 272                                                 if (inputLine.level > currentInput.level) {
 273                                                     iter.remove();
 274                                                 }
 275                                             }
 276                                         } else {
 277                                             currentInput = null;
 278                                         }
 279                                     }
 280                                 }
 281                             }
 282                             ((StringBuffer) event.getContent().getContent()).append("\n").append(line); //$NON-NLS-1$
 283                         }
 284                     }
 285                     rawPos = context.raFile.getFilePointer();
 286                 }
 287             } catch (IOException e) {
 288                 e.printStackTrace();
 289             }
 290         }
 291         for(Entry<InputLine, Integer> entry : countMap.entrySet()) {
 292             if (entry.getValue() < entry.getKey().getMinCount()) {
 293                 event = null;
 294             }
 295         }
 296         context.setLocation(NULL_LOCATION);
 297         return event;
 298     }
 299
 300     public List<InputLine> getFirstLines() {
 301         return fDefinition.inputs;
 302     }
 303
 304     public CustomTxtEvent parseFirstLine(CustomTxtTraceContext context) {
 305         CustomTxtEvent event = new CustomTxtEvent(fDefinition, TmfTimestamp.Zero, new TmfEventSource(""), fEventType, new TmfEventReference("")); //$NON-NLS-1$ //$NON-NLS-2$
 306         event.processGroups(context.inputLine, context.firstLineMatcher);
 307         event.setContent(new CustomEventContent(event, new StringBuffer(context.firstLine)));
 308         return event;
 309     }
 310
 311     public CustomTraceDefinition getDefinition() {
 312         return fDefinition;
 313     }
 314 }