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.core.event.TmfEvent;
  25 import org.eclipse.linuxtools.tmf.core.event.TmfEventReference;
  26 import org.eclipse.linuxtools.tmf.core.event.TmfEventSource;
  27 import org.eclipse.linuxtools.tmf.core.event.TmfTimestamp;
  28 import org.eclipse.linuxtools.tmf.core.io.BufferedRandomAccessFile;
  29 import org.eclipse.linuxtools.tmf.core.trace.ITmfContext;
  30 import org.eclipse.linuxtools.tmf.core.trace.ITmfLocation;
  31 import org.eclipse.linuxtools.tmf.core.trace.ITmfTrace;
  32 import org.eclipse.linuxtools.tmf.core.trace.TmfContext;
  33 import org.eclipse.linuxtools.tmf.core.trace.TmfLocation;
  34 import org.eclipse.linuxtools.tmf.core.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(CustomTxtTraceDefinition definition) {
  45         fDefinition = definition;
  46         fEventType = new CustomTxtEventType(fDefinition);
  47     }
  48
  49     public CustomTxtTrace(String name, CustomTxtTraceDefinition definition, String path, int cacheSize) throws FileNotFoundException {
  50         super(name, CustomTxtEvent.class, path, cacheSize);
  51         fDefinition = definition;
  52         fEventType = new CustomTxtEventType(fDefinition);
  53     }
  54
  55         @Override
  56         @SuppressWarnings({ "unchecked", "rawtypes" })
  57         public ITmfTrace copy() {
  58         // TODO Auto-generated method stub
  59         return null;
  60     }
  61
  62     @Override
  63     public TmfContext seekLocation(ITmfLocation<?> location) {
  64         //System.out.println(Thread.currentThread().getName() + "::" + getName() + " seekLocation(" + ((location == null || location.getLocation() == null) ? "null" : location) + ")");
  65         //new Throwable().printStackTrace();
  66         CustomTxtTraceContext context = new CustomTxtTraceContext(NULL_LOCATION, ITmfContext.INITIAL_RANK);
  67         if (NULL_LOCATION.equals(location) || !new File(getPath()).isFile()) {
  68             return context;
  69         }
  70         try {
  71             BufferedRandomAccessFile raFile = new BufferedRandomAccessFile(getPath(), "r"); //$NON-NLS-1$
  72             if (location != null && location.getLocation() instanceof Long) {
  73                 raFile.seek((Long)location.getLocation());
  74             }
  75             String line;
  76             long rawPos = raFile.getFilePointer();
  77             while ((line = raFile.getNextLine()) != null) {
  78                 for (InputLine input : getFirstLines()) {
  79                     Matcher matcher = input.getPattern().matcher(line);
  80                     if (matcher.find()) {
  81                         context.setLocation(new TmfLocation<Long>(rawPos));
  82                         context.raFile = raFile;
  83                         context.firstLineMatcher = matcher;
  84                         context.firstLine = line;
  85                         context.nextLineLocation = raFile.getFilePointer();
  86                         context.inputLine = input;
  87                         return context;
  88                     }
  89                 }
  90                 rawPos = raFile.getFilePointer();
  91             }
  92             return context;
  93         } catch (FileNotFoundException e) {
  94             e.printStackTrace();
  95             return context;
  96         } catch (IOException e) {
  97             e.printStackTrace();
  98             return context;
  99         }
 100
 101     }
 102
 103     @Override
 104     public TmfContext seekLocation(double ratio) {
 105         try {
 106             BufferedRandomAccessFile raFile = new BufferedRandomAccessFile(getPath(), "r"); //$NON-NLS-1$
 107             long pos = (long) (ratio * raFile.length());
 108             while (pos > 0) {
 109                 raFile.seek(pos - 1);
 110                 if (raFile.read() == '\n') break;
 111                 pos--;
 112             }
 113             ITmfLocation<?> location = new TmfLocation<Long>(new Long(pos));
 114             TmfContext context = seekLocation(location);
 115             context.setRank(ITmfContext.UNKNOWN_RANK);
 116             return context;
 117         } catch (FileNotFoundException e) {
 118             e.printStackTrace();
 119             return new CustomTxtTraceContext(NULL_LOCATION, ITmfContext.INITIAL_RANK);
 120         } catch (IOException e) {
 121             e.printStackTrace();
 122             return new CustomTxtTraceContext(NULL_LOCATION, ITmfContext.INITIAL_RANK);
 123         }
 124     }
 125
 126     @Override
 127     public double getLocationRatio(ITmfLocation<?> location) {
 128         try {
 129             if (location.getLocation() instanceof Long) {
 130                 BufferedRandomAccessFile raFile = new BufferedRandomAccessFile(getPath(), "r"); //$NON-NLS-1$
 131                 return (double) ((Long) location.getLocation()) / raFile.length();
 132             }
 133         } catch (FileNotFoundException e) {
 134             e.printStackTrace();
 135         } catch (IOException e) {
 136             e.printStackTrace();
 137         }
 138         return 0;
 139     }
 140
 141     @Override
 142     public ITmfLocation<?> getCurrentLocation() {
 143         // TODO Auto-generated method stub
 144         return null;
 145     }
 146
 147     @Override
 148     public synchronized TmfEvent getNextEvent(TmfContext context) {
 149         ITmfContext savedContext = context.clone();
 150         TmfEvent event = parseEvent(context);
 151         if (event != null) {
 152             updateIndex(savedContext, savedContext.getRank(), event.getTimestamp());
 153             context.updateRank(1);
 154         }
 155         return event;
 156     }
 157
 158     @Override
 159     public TmfEvent parseEvent(TmfContext tmfContext) {
 160         //System.out.println(Thread.currentThread().getName() + ":: " + getName() + " parseEvent(" + tmfContext.getRank() + " @ " + (tmfContext.getLocation().getLocation() == null ? "null" : tmfContext.getLocation()));
 161         if (!(tmfContext instanceof CustomTxtTraceContext)) {
 162             return null;
 163         }
 164
 165         CustomTxtTraceContext context = (CustomTxtTraceContext) tmfContext;
 166         if (!(context.getLocation().getLocation() instanceof Long) || NULL_LOCATION.equals(context.getLocation())) {
 167             return null;
 168         }
 169
 170         CustomTxtEvent event = parseFirstLine(context);
 171
 172         HashMap<InputLine, Integer> countMap = new HashMap<InputLine, Integer>();
 173         InputLine currentInput = null;
 174         if (context.inputLine.childrenInputs != null && context.inputLine.childrenInputs.size() > 0) {
 175             currentInput = context.inputLine.childrenInputs.get(0);
 176             countMap.put(currentInput, 0);
 177         }
 178
 179         synchronized (context.raFile) {
 180             try {
 181                 if (context.raFile.getFilePointer() != context.nextLineLocation) {
 182                     context.raFile.seek(context.nextLineLocation);
 183                 }
 184                 String line;
 185                 long rawPos = context.raFile.getFilePointer();
 186                 while ((line = context.raFile.getNextLine()) != null) {
 187                     boolean processed = false;
 188                     if (currentInput == null) {
 189                         for (InputLine input : getFirstLines()) {
 190                             Matcher matcher = input.getPattern().matcher(line);
 191                             if (matcher.find()) {
 192                                 context.setLocation(new TmfLocation<Long>(rawPos));
 193                                 context.firstLineMatcher = matcher;
 194                                 context.firstLine = line;
 195                                 context.nextLineLocation = context.raFile.getFilePointer();
 196                                 context.inputLine = input;
 197                                 return event;
 198                             }
 199                         }
 200                     } else {
 201                         if (countMap.get(currentInput) >= currentInput.getMinCount()) {
 202                             List<InputLine> nextInputs = currentInput.getNextInputs(countMap);
 203                             if (nextInputs.size() == 0 || nextInputs.get(nextInputs.size() - 1).getMinCount() == 0) {
 204                                 for (InputLine input : getFirstLines()) {
 205                                     Matcher matcher = input.getPattern().matcher(line);
 206                                     if (matcher.find()) {
 207                                         context.setLocation(new TmfLocation<Long>(rawPos));
 208                                         context.firstLineMatcher = matcher;
 209                                         context.firstLine = line;
 210                                         context.nextLineLocation = context.raFile.getFilePointer();
 211                                         context.inputLine = input;
 212                                         return event;
 213                                     }
 214                                 }
 215                             }
 216                             for (InputLine input : nextInputs) {
 217                                 Matcher matcher = input.getPattern().matcher(line);
 218                                 if (matcher.find()) {
 219                                     event.processGroups(input, matcher);
 220                                     currentInput = input;
 221                                     if (countMap.get(currentInput) == null) {
 222                                         countMap.put(currentInput, 1);
 223                                     } else {
 224                                         countMap.put(currentInput, countMap.get(currentInput) + 1);
 225                                     }
 226                                     Iterator<InputLine> iter = countMap.keySet().iterator();
 227                                     while (iter.hasNext()) {
 228                                         InputLine inputLine = iter.next();
 229                                         if (inputLine.level > currentInput.level) {
 230                                             iter.remove();
 231                                         }
 232                                     }
 233                                     if (currentInput.childrenInputs != null && currentInput.childrenInputs.size() > 0) {
 234                                         currentInput = currentInput.childrenInputs.get(0);
 235                                         countMap.put(currentInput, 0);
 236                                     } else {
 237                                         if (countMap.get(currentInput) >= currentInput.getMaxCount()) {
 238                                             if (currentInput.getNextInputs(countMap).size() > 0) {
 239                                                 currentInput = currentInput.getNextInputs(countMap).get(0);
 240                                                 if (countMap.get(currentInput) == null) {
 241                                                     countMap.put(currentInput, 0);
 242                                                 }
 243                                                 iter = countMap.keySet().iterator();
 244                                                 while (iter.hasNext()) {
 245                                                     InputLine inputLine = iter.next();
 246                                                     if (inputLine.level > currentInput.level) {
 247                                                         iter.remove();
 248                                                     }
 249                                                 }
 250                                             } else {
 251                                                 currentInput = null;
 252                                             }
 253                                         }
 254                                     }
 255                                     processed = true;
 256                                     break;
 257                                 }
 258                             }
 259                         }
 260                         if (! processed) {
 261                             Matcher matcher = currentInput.getPattern().matcher(line);
 262                             if (matcher.find()) {
 263                                 event.processGroups(currentInput, matcher);
 264                                 countMap.put(currentInput, countMap.get(currentInput) + 1);
 265                                 if (currentInput.childrenInputs != null && currentInput.childrenInputs.size() > 0) {
 266                                     currentInput = currentInput.childrenInputs.get(0);
 267                                     countMap.put(currentInput, 0);
 268                                 } else {
 269                                     if (countMap.get(currentInput) >= currentInput.getMaxCount()) {
 270                                         if (currentInput.getNextInputs(countMap).size() > 0) {
 271                                             currentInput = currentInput.getNextInputs(countMap).get(0);
 272                                             if (countMap.get(currentInput) == null) {
 273                                                 countMap.put(currentInput, 0);
 274                                             }
 275                                             Iterator<InputLine> iter = countMap.keySet().iterator();
 276                                             while (iter.hasNext()) {
 277                                                 InputLine inputLine = iter.next();
 278                                                 if (inputLine.level > currentInput.level) {
 279                                                     iter.remove();
 280                                                 }
 281                                             }
 282                                         } else {
 283                                             currentInput = null;
 284                                         }
 285                                     }
 286                                 }
 287                             }
 288                             ((StringBuffer) event.getContent().getContent()).append("\n").append(line); //$NON-NLS-1$
 289                         }
 290                     }
 291                     rawPos = context.raFile.getFilePointer();
 292                 }
 293             } catch (IOException e) {
 294                 e.printStackTrace();
 295             }
 296         }
 297         for(Entry<InputLine, Integer> entry : countMap.entrySet()) {
 298             if (entry.getValue() < entry.getKey().getMinCount()) {
 299                 event = null;
 300             }
 301         }
 302         context.setLocation(NULL_LOCATION);
 303         return event;
 304     }
 305
 306     public List<InputLine> getFirstLines() {
 307         return fDefinition.inputs;
 308     }
 309
 310     public CustomTxtEvent parseFirstLine(CustomTxtTraceContext context) {
 311         CustomTxtEvent event = new CustomTxtEvent(fDefinition, this, TmfTimestamp.Zero, new TmfEventSource(""), fEventType, new TmfEventReference("")); //$NON-NLS-1$ //$NON-NLS-2$
 312         event.processGroups(context.inputLine, context.firstLineMatcher);
 313         event.setContent(new CustomEventContent(event, new StringBuffer(context.firstLine)));
 314         return event;
 315     }
 316
 317     public CustomTraceDefinition getDefinition() {
 318         return fDefinition;
 319     }
 320 }