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         @SuppressWarnings({ "unchecked", "rawtypes" })
  52         public ITmfTrace copy() {
  53         // TODO Auto-generated method stub
  54         return null;
  55     }
  56
  57     @Override
  58     public TmfContext seekLocation(ITmfLocation<?> location) {
  59         //System.out.println(Thread.currentThread().getName() + "::" + getName() + " seekLocation(" + ((location == null || location.getLocation() == null) ? "null" : location) + ")");
  60         //new Throwable().printStackTrace();
  61         CustomTxtTraceContext context = new CustomTxtTraceContext(NULL_LOCATION, ITmfContext.INITIAL_RANK);
  62         if (NULL_LOCATION.equals(location) || !new File(getPath()).isFile()) {
  63             return context;
  64         }
  65         try {
  66             BufferedRandomAccessFile raFile = new BufferedRandomAccessFile(getPath(), "r"); //$NON-NLS-1$
  67             if (location != null && location.getLocation() instanceof Long) {
  68                 raFile.seek((Long)location.getLocation());
  69             }
  70             String line;
  71             long rawPos = raFile.getFilePointer();
  72             while ((line = raFile.getNextLine()) != null) {
  73                 for (InputLine input : getFirstLines()) {
  74                     Matcher matcher = input.getPattern().matcher(line);
  75                     if (matcher.find()) {
  76                         context.setLocation(new TmfLocation<Long>(rawPos));
  77                         context.raFile = raFile;
  78                         context.firstLineMatcher = matcher;
  79                         context.firstLine = line;
  80                         context.nextLineLocation = raFile.getFilePointer();
  81                         context.inputLine = input;
  82                         return context;
  83                     }
  84                 }
  85                 rawPos = raFile.getFilePointer();
  86             }
  87             return context;
  88         } catch (FileNotFoundException e) {
  89             e.printStackTrace();
  90             return context;
  91         } catch (IOException e) {
  92             e.printStackTrace();
  93             return context;
  94         }
  95
  96     }
  97
  98     @Override
  99     public TmfContext seekLocation(double ratio) {
 100         try {
 101             BufferedRandomAccessFile raFile = new BufferedRandomAccessFile(getPath(), "r"); //$NON-NLS-1$
 102             long pos = (long) (ratio * raFile.length());
 103             while (pos > 0) {
 104                 raFile.seek(pos - 1);
 105                 if (raFile.read() == '\n') break;
 106                 pos--;
 107             }
 108             ITmfLocation<?> location = new TmfLocation<Long>(new Long(pos));
 109             TmfContext context = seekLocation(location);
 110             context.setRank(ITmfContext.UNKNOWN_RANK);
 111             return context;
 112         } catch (FileNotFoundException e) {
 113             e.printStackTrace();
 114             return new CustomTxtTraceContext(NULL_LOCATION, ITmfContext.INITIAL_RANK);
 115         } catch (IOException e) {
 116             e.printStackTrace();
 117             return new CustomTxtTraceContext(NULL_LOCATION, ITmfContext.INITIAL_RANK);
 118         }
 119     }
 120
 121     @Override
 122     public double getLocationRatio(ITmfLocation<?> location) {
 123         try {
 124             if (location.getLocation() instanceof Long) {
 125                 BufferedRandomAccessFile raFile = new BufferedRandomAccessFile(getPath(), "r"); //$NON-NLS-1$
 126                 return (double) ((Long) location.getLocation()) / raFile.length();
 127             }
 128         } catch (FileNotFoundException e) {
 129             e.printStackTrace();
 130         } catch (IOException e) {
 131             e.printStackTrace();
 132         }
 133         return 0;
 134     }
 135
 136     @Override
 137     public ITmfLocation<?> getCurrentLocation() {
 138         // TODO Auto-generated method stub
 139         return null;
 140     }
 141
 142     @Override
 143     public synchronized TmfEvent getNextEvent(TmfContext context) {
 144         ITmfContext savedContext = context.clone();
 145         TmfEvent event = parseEvent(context);
 146         if (event != null) {
 147             updateIndex(savedContext, savedContext.getRank(), event.getTimestamp());
 148             context.updateRank(1);
 149         }
 150         return event;
 151     }
 152
 153     @Override
 154     public TmfEvent parseEvent(TmfContext tmfContext) {
 155         //System.out.println(Thread.currentThread().getName() + ":: " + getName() + " parseEvent(" + tmfContext.getRank() + " @ " + (tmfContext.getLocation().getLocation() == null ? "null" : tmfContext.getLocation()));
 156         if (!(tmfContext instanceof CustomTxtTraceContext)) {
 157             return null;
 158         }
 159
 160         CustomTxtTraceContext context = (CustomTxtTraceContext) tmfContext;
 161         if (!(context.getLocation().getLocation() instanceof Long) || NULL_LOCATION.equals(context.getLocation())) {
 162             return null;
 163         }
 164
 165         CustomTxtEvent event = parseFirstLine(context);
 166
 167         HashMap<InputLine, Integer> countMap = new HashMap<InputLine, Integer>();
 168         InputLine currentInput = null;
 169         if (context.inputLine.childrenInputs != null && context.inputLine.childrenInputs.size() > 0) {
 170             currentInput = context.inputLine.childrenInputs.get(0);
 171             countMap.put(currentInput, 0);
 172         }
 173
 174         synchronized (context.raFile) {
 175             try {
 176                 if (context.raFile.getFilePointer() != context.nextLineLocation) {
 177                     context.raFile.seek(context.nextLineLocation);
 178                 }
 179                 String line;
 180                 long rawPos = context.raFile.getFilePointer();
 181                 while ((line = context.raFile.getNextLine()) != null) {
 182                     boolean processed = false;
 183                     if (currentInput == null) {
 184                         for (InputLine input : getFirstLines()) {
 185                             Matcher matcher = input.getPattern().matcher(line);
 186                             if (matcher.find()) {
 187                                 context.setLocation(new TmfLocation<Long>(rawPos));
 188                                 context.firstLineMatcher = matcher;
 189                                 context.firstLine = line;
 190                                 context.nextLineLocation = context.raFile.getFilePointer();
 191                                 context.inputLine = input;
 192                                 return event;
 193                             }
 194                         }
 195                     } else {
 196                         if (countMap.get(currentInput) >= currentInput.getMinCount()) {
 197                             List<InputLine> nextInputs = currentInput.getNextInputs(countMap);
 198                             if (nextInputs.size() == 0 || nextInputs.get(nextInputs.size() - 1).getMinCount() == 0) {
 199                                 for (InputLine input : getFirstLines()) {
 200                                     Matcher matcher = input.getPattern().matcher(line);
 201                                     if (matcher.find()) {
 202                                         context.setLocation(new TmfLocation<Long>(rawPos));
 203                                         context.firstLineMatcher = matcher;
 204                                         context.firstLine = line;
 205                                         context.nextLineLocation = context.raFile.getFilePointer();
 206                                         context.inputLine = input;
 207                                         return event;
 208                                     }
 209                                 }
 210                             }
 211                             for (InputLine input : nextInputs) {
 212                                 Matcher matcher = input.getPattern().matcher(line);
 213                                 if (matcher.find()) {
 214                                     event.processGroups(input, matcher);
 215                                     currentInput = input;
 216                                     if (countMap.get(currentInput) == null) {
 217                                         countMap.put(currentInput, 1);
 218                                     } else {
 219                                         countMap.put(currentInput, countMap.get(currentInput) + 1);
 220                                     }
 221                                     Iterator<InputLine> iter = countMap.keySet().iterator();
 222                                     while (iter.hasNext()) {
 223                                         InputLine inputLine = iter.next();
 224                                         if (inputLine.level > currentInput.level) {
 225                                             iter.remove();
 226                                         }
 227                                     }
 228                                     if (currentInput.childrenInputs != null && currentInput.childrenInputs.size() > 0) {
 229                                         currentInput = currentInput.childrenInputs.get(0);
 230                                         countMap.put(currentInput, 0);
 231                                     } else {
 232                                         if (countMap.get(currentInput) >= currentInput.getMaxCount()) {
 233                                             if (currentInput.getNextInputs(countMap).size() > 0) {
 234                                                 currentInput = currentInput.getNextInputs(countMap).get(0);
 235                                                 if (countMap.get(currentInput) == null) {
 236                                                     countMap.put(currentInput, 0);
 237                                                 }
 238                                                 iter = countMap.keySet().iterator();
 239                                                 while (iter.hasNext()) {
 240                                                     InputLine inputLine = iter.next();
 241                                                     if (inputLine.level > currentInput.level) {
 242                                                         iter.remove();
 243                                                     }
 244                                                 }
 245                                             } else {
 246                                                 currentInput = null;
 247                                             }
 248                                         }
 249                                     }
 250                                     processed = true;
 251                                     break;
 252                                 }
 253                             }
 254                         }
 255                         if (! processed) {
 256                             Matcher matcher = currentInput.getPattern().matcher(line);
 257                             if (matcher.find()) {
 258                                 event.processGroups(currentInput, matcher);
 259                                 countMap.put(currentInput, countMap.get(currentInput) + 1);
 260                                 if (currentInput.childrenInputs != null && currentInput.childrenInputs.size() > 0) {
 261                                     currentInput = currentInput.childrenInputs.get(0);
 262                                     countMap.put(currentInput, 0);
 263                                 } else {
 264                                     if (countMap.get(currentInput) >= currentInput.getMaxCount()) {
 265                                         if (currentInput.getNextInputs(countMap).size() > 0) {
 266                                             currentInput = currentInput.getNextInputs(countMap).get(0);
 267                                             if (countMap.get(currentInput) == null) {
 268                                                 countMap.put(currentInput, 0);
 269                                             }
 270                                             Iterator<InputLine> iter = countMap.keySet().iterator();
 271                                             while (iter.hasNext()) {
 272                                                 InputLine inputLine = iter.next();
 273                                                 if (inputLine.level > currentInput.level) {
 274                                                     iter.remove();
 275                                                 }
 276                                             }
 277                                         } else {
 278                                             currentInput = null;
 279                                         }
 280                                     }
 281                                 }
 282                             }
 283                             ((StringBuffer) event.getContent().getContent()).append("\n").append(line); //$NON-NLS-1$
 284                         }
 285                     }
 286                     rawPos = context.raFile.getFilePointer();
 287                 }
 288             } catch (IOException e) {
 289                 e.printStackTrace();
 290             }
 291         }
 292         for(Entry<InputLine, Integer> entry : countMap.entrySet()) {
 293             if (entry.getValue() < entry.getKey().getMinCount()) {
 294                 event = null;
 295             }
 296         }
 297         context.setLocation(NULL_LOCATION);
 298         return event;
 299     }
 300
 301     public List<InputLine> getFirstLines() {
 302         return fDefinition.inputs;
 303     }
 304
 305     public CustomTxtEvent parseFirstLine(CustomTxtTraceContext context) {
 306         CustomTxtEvent event = new CustomTxtEvent(fDefinition, TmfTimestamp.Zero, new TmfEventSource(""), fEventType, new TmfEventReference("")); //$NON-NLS-1$ //$NON-NLS-2$
 307         event.processGroups(context.inputLine, context.firstLineMatcher);
 308         event.setContent(new CustomEventContent(event, new StringBuffer(context.firstLine)));
 309         return event;
 310     }
 311
 312     public CustomTraceDefinition getDefinition() {
 313         return fDefinition;
 314     }
 315 }