[deliverable/tracecompass.git] / org.eclipse.linuxtools.tmf.ui / src / org / eclipse / linuxtools / internal / tmf / ui / parsers / custom / CustomTxtTrace.java

/*******************************************************************************
 * Copyright (c) 2010 Ericsson
 * 
 * All rights reserved. This program and the accompanying materials are
 * made available under the terms of the Eclipse Public License v1.0 which
 * accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 * 
 * Contributors:
 *   Patrick Tasse - Initial API and implementation
 *******************************************************************************/

package org.eclipse.linuxtools.internal.tmf.ui.parsers.custom;

import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map.Entry;
import java.util.regex.Matcher;

import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IResource;
import org.eclipse.linuxtools.internal.tmf.ui.Activator;
import org.eclipse.linuxtools.internal.tmf.ui.parsers.custom.CustomTxtTraceDefinition.InputLine;
import org.eclipse.linuxtools.tmf.core.event.TmfTimestamp;
import org.eclipse.linuxtools.tmf.core.exceptions.TmfTraceException;
import org.eclipse.linuxtools.tmf.core.io.BufferedRandomAccessFile;
import org.eclipse.linuxtools.tmf.core.trace.ITmfContext;
import org.eclipse.linuxtools.tmf.core.trace.ITmfEventParser;
import org.eclipse.linuxtools.tmf.core.trace.ITmfLocation;
import org.eclipse.linuxtools.tmf.core.trace.TmfContext;
import org.eclipse.linuxtools.tmf.core.trace.TmfLocation;
import org.eclipse.linuxtools.tmf.core.trace.TmfTrace;

public class CustomTxtTrace extends TmfTrace<CustomTxtEvent> implements ITmfEventParser<CustomTxtEvent> {

    private static final TmfLocation<Long> NULL_LOCATION = new TmfLocation<Long>((Long) null);
    private static final int DEFAULT_CACHE_SIZE = 100;

    private final CustomTxtTraceDefinition fDefinition;
    private final CustomTxtEventType fEventType;
    private BufferedRandomAccessFile fFile;

    public CustomTxtTrace(final CustomTxtTraceDefinition definition) {
        fDefinition = definition;
        fEventType = new CustomTxtEventType(fDefinition);
        setCacheSize(DEFAULT_CACHE_SIZE);
    }

    public CustomTxtTrace(final IResource resource, final CustomTxtTraceDefinition definition, final String path, final int cacheSize) throws TmfTraceException {
        this(definition);
        setCacheSize((cacheSize > 0) ? cacheSize : DEFAULT_CACHE_SIZE);
        initTrace(resource, path, CustomTxtEvent.class);
    }

    @Override
    public void initTrace(final IResource resource, final String path, final Class<CustomTxtEvent> eventType) throws TmfTraceException {
        super.initTrace(resource, path, eventType);
        try {
            fFile = new BufferedRandomAccessFile(getPath(), "r"); //$NON-NLS-1$
        } catch (IOException e) {
            throw new TmfTraceException(e.getMessage(), e);
        }
        indexTrace(false);
    }

    @Override
    public synchronized void dispose() {
        super.dispose();
        if (fFile != null) {
            try {
                fFile.close();
            } catch (IOException e) {
            } finally {
                fFile = null;
            }
        }
    }

    @Override
    public synchronized TmfContext seekEvent(final ITmfLocation<?> location) {
        final CustomTxtTraceContext context = new CustomTxtTraceContext(NULL_LOCATION, ITmfContext.UNKNOWN_RANK);
        if (NULL_LOCATION.equals(location) || fFile == null) {
            return context;
        }
        try {
            if (location == null) {
                fFile.seek(0);
            } else if (location.getLocation() instanceof Long) {
                fFile.seek((Long) location.getLocation());
            }
            String line;
            long rawPos = fFile.getFilePointer();
            while ((line = fFile.getNextLine()) != null) {
                for (final InputLine input : getFirstLines()) {
                    final Matcher matcher = input.getPattern().matcher(line);
                    if (matcher.find()) {
                        context.setLocation(new TmfLocation<Long>(rawPos));
                        context.firstLineMatcher = matcher;
                        context.firstLine = line;
                        context.nextLineLocation = fFile.getFilePointer();
                        context.inputLine = input;
                        return context;
                    }
                }
                rawPos = fFile.getFilePointer();
            }
            return context;
        } catch (final FileNotFoundException e) {
            Activator.getDefault().logError("Error seeking event. File not found: " + getPath(), e); //$NON-NLS-1$
            return context;
        } catch (final IOException e) {
            Activator.getDefault().logError("Error seeking event. File: " + getPath(), e); //$NON-NLS-1$
            return context;
        }

    }

    @Override
    public synchronized TmfContext seekEvent(final double ratio) {
        if (fFile == null) {
            return new CustomTxtTraceContext(NULL_LOCATION, ITmfContext.UNKNOWN_RANK);
        }
        try {
            long pos = (long) (ratio * fFile.length());
            while (pos > 0) {
                fFile.seek(pos - 1);
                if (fFile.read() == '\n') {
                    break;
                }
                pos--;
            }
            final ITmfLocation<?> location = new TmfLocation<Long>(pos);
            final TmfContext context = seekEvent(location);
            context.setRank(ITmfContext.UNKNOWN_RANK);
            return context;
        } catch (final IOException e) {
            Activator.getDefault().logError("Error seeking event. File: " + getPath(), e); //$NON-NLS-1$
            return new CustomTxtTraceContext(NULL_LOCATION, ITmfContext.UNKNOWN_RANK);
        }
    }

    @Override
    public synchronized double getLocationRatio(final ITmfLocation<?> location) {
        if (fFile == null) {
            return 0;
        }
        try {
            if (location.getLocation() instanceof Long) {
                return (double) ((Long) location.getLocation()) / fFile.length();
            }
        } catch (final IOException e) {
            Activator.getDefault().logError("Error seeking event. File: " + getPath(), e); //$NON-NLS-1$
        }
        return 0;
    }

    @Override
    public ITmfLocation<?> getCurrentLocation() {
        // TODO Auto-generated method stub
        return null;
    }

    @Override
    public synchronized CustomTxtEvent parseEvent(final ITmfContext tmfContext) {
        ITmfContext context = seekEvent(tmfContext.getLocation());
        return parse(context);
    }

    @Override
    public synchronized CustomTxtEvent getNext(final ITmfContext context) {
        final ITmfContext savedContext = context.clone();
        final CustomTxtEvent event = parse(context);
        if (event != null) {
            updateAttributes(savedContext, event.getTimestamp());
            context.increaseRank();
        }
        return event;
    }

    private synchronized CustomTxtEvent parse(final ITmfContext tmfContext) {
        if (fFile == null) {
            return null;
        }
        if (!(tmfContext instanceof CustomTxtTraceContext)) {
            return null;
        }

        final CustomTxtTraceContext context = (CustomTxtTraceContext) tmfContext;
        if (!(context.getLocation().getLocation() instanceof Long) || NULL_LOCATION.equals(context.getLocation())) {
            return null;
        }

        CustomTxtEvent event = parseFirstLine(context);

        final HashMap<InputLine, Integer> countMap = new HashMap<InputLine, Integer>();
        InputLine currentInput = null;
        if (context.inputLine.childrenInputs != null && context.inputLine.childrenInputs.size() > 0) {
            currentInput = context.inputLine.childrenInputs.get(0);
            countMap.put(currentInput, 0);
        }

        try {
            if (fFile.getFilePointer() != context.nextLineLocation) {
                fFile.seek(context.nextLineLocation);
            }
            String line;
            long rawPos = fFile.getFilePointer();
            while ((line = fFile.getNextLine()) != null) {
                boolean processed = false;
                if (currentInput == null) {
                    for (final InputLine input : getFirstLines()) {
                        final Matcher matcher = input.getPattern().matcher(line);
                        if (matcher.find()) {
                            context.setLocation(new TmfLocation<Long>(rawPos));
                            context.firstLineMatcher = matcher;
                            context.firstLine = line;
                            context.nextLineLocation = fFile.getFilePointer();
                            context.inputLine = input;
                            return event;
                        }
                    }
                } else {
                    if (countMap.get(currentInput) >= currentInput.getMinCount()) {
                        final List<InputLine> nextInputs = currentInput.getNextInputs(countMap);
                        if (nextInputs.size() == 0 || nextInputs.get(nextInputs.size() - 1).getMinCount() == 0) {
                            for (final InputLine input : getFirstLines()) {
                                final Matcher matcher = input.getPattern().matcher(line);
                                if (matcher.find()) {
                                    context.setLocation(new TmfLocation<Long>(rawPos));
                                    context.firstLineMatcher = matcher;
                                    context.firstLine = line;
                                    context.nextLineLocation = fFile.getFilePointer();
                                    context.inputLine = input;
                                    return event;
                                }
                            }
                        }
                        for (final InputLine input : nextInputs) {
                            final Matcher matcher = input.getPattern().matcher(line);
                            if (matcher.find()) {
                                event.processGroups(input, matcher);
                                currentInput = input;
                                if (countMap.get(currentInput) == null) {
                                    countMap.put(currentInput, 1);
                                } else {
                                    countMap.put(currentInput, countMap.get(currentInput) + 1);
                                }
                                Iterator<InputLine> iter = countMap.keySet().iterator();
                                while (iter.hasNext()) {
                                    final InputLine inputLine = iter.next();
                                    if (inputLine.level > currentInput.level) {
                                        iter.remove();
                                    }
                                }
                                if (currentInput.childrenInputs != null && currentInput.childrenInputs.size() > 0) {
                                    currentInput = currentInput.childrenInputs.get(0);
                                    countMap.put(currentInput, 0);
                                } else if (countMap.get(currentInput) >= currentInput.getMaxCount()) {
                                    if (currentInput.getNextInputs(countMap).size() > 0) {
                                        currentInput = currentInput.getNextInputs(countMap).get(0);
                                        if (countMap.get(currentInput) == null) {
                                            countMap.put(currentInput, 0);
                                        }
                                        iter = countMap.keySet().iterator();
                                        while (iter.hasNext()) {
                                            final InputLine inputLine = iter.next();
                                            if (inputLine.level > currentInput.level) {
                                                iter.remove();
                                            }
                                        }
                                    } else {
                                        currentInput = null;
                                    }
                                }
                                processed = true;
                                break;
                            }
                        }
                    }
                    if (! processed) {
                        final Matcher matcher = currentInput.getPattern().matcher(line);
                        if (matcher.find()) {
                            event.processGroups(currentInput, matcher);
                            countMap.put(currentInput, countMap.get(currentInput) + 1);
                            if (currentInput.childrenInputs != null && currentInput.childrenInputs.size() > 0) {
                                currentInput = currentInput.childrenInputs.get(0);
                                countMap.put(currentInput, 0);
                            } else if (countMap.get(currentInput) >= currentInput.getMaxCount()) {
                                if (currentInput.getNextInputs(countMap).size() > 0) {
                                    currentInput = currentInput.getNextInputs(countMap).get(0);
                                    if (countMap.get(currentInput) == null) {
                                        countMap.put(currentInput, 0);
                                    }
                                    final Iterator<InputLine> iter = countMap.keySet().iterator();
                                    while (iter.hasNext()) {
                                        final InputLine inputLine = iter.next();
                                        if (inputLine.level > currentInput.level) {
                                            iter.remove();
                                        }
                                    }
                                } else {
                                    currentInput = null;
                                }
                            }
                        }
                        ((StringBuffer) event.getContent().getValue()).append("\n").append(line); //$NON-NLS-1$
                    }
                }
                rawPos = fFile.getFilePointer();
            }
        } catch (final IOException e) {
            Activator.getDefault().logError("Error seeking event. File: " + getPath(), e); //$NON-NLS-1$
        }
        for (final Entry<InputLine, Integer> entry : countMap.entrySet()) {
            if (entry.getValue() < entry.getKey().getMinCount()) {
                event = null;
            }
        }
        context.setLocation(NULL_LOCATION);
        return event;
    }

    public List<InputLine> getFirstLines() {
        return fDefinition.inputs;
    }

    public CustomTxtEvent parseFirstLine(final CustomTxtTraceContext context) {
        final CustomTxtEvent event = new CustomTxtEvent(fDefinition, this, TmfTimestamp.ZERO, "", fEventType, ""); //$NON-NLS-1$ //$NON-NLS-2$
        event.processGroups(context.inputLine, context.firstLineMatcher);
        event.setContent(new CustomEventContent(event, new StringBuffer(context.firstLine)));
        return event;
    }

    public CustomTraceDefinition getDefinition() {
        return fDefinition;
    }

    /* (non-Javadoc)
     * @see org.eclipse.linuxtools.tmf.core.trace.ITmfTrace#validate(org.eclipse.core.resources.IProject, java.lang.String)
     */
    @Override
    public boolean validate(IProject project, String path) {
        return fileExists(path);
    }
}
Commit	Line	Data
be222f56 PT	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.internal.tmf.ui.parsers.custom;
	14
	15	import java.io.FileNotFoundException;
	16	import java.io.IOException;
	17	import java.util.HashMap;
	18	import java.util.Iterator;
	19	import java.util.List;
	20	import java.util.Map.Entry;
	21	import java.util.regex.Matcher;
	22
	23	import org.eclipse.core.resources.IProject;
	24	import org.eclipse.core.resources.IResource;
	25	import org.eclipse.linuxtools.internal.tmf.ui.Activator;
	26	import org.eclipse.linuxtools.internal.tmf.ui.parsers.custom.CustomTxtTraceDefinition.InputLine;
	27	import org.eclipse.linuxtools.tmf.core.event.TmfTimestamp;
	28	import org.eclipse.linuxtools.tmf.core.exceptions.TmfTraceException;
	29	import org.eclipse.linuxtools.tmf.core.io.BufferedRandomAccessFile;
	30	import org.eclipse.linuxtools.tmf.core.trace.ITmfContext;
	31	import org.eclipse.linuxtools.tmf.core.trace.ITmfEventParser;
	32	import org.eclipse.linuxtools.tmf.core.trace.ITmfLocation;
	33	import org.eclipse.linuxtools.tmf.core.trace.TmfContext;
	34	import org.eclipse.linuxtools.tmf.core.trace.TmfLocation;
	35	import org.eclipse.linuxtools.tmf.core.trace.TmfTrace;
	36
	37	public class CustomTxtTrace extends TmfTrace<CustomTxtEvent> implements ITmfEventParser<CustomTxtEvent> {
	38
	39	private static final TmfLocation<Long> NULL_LOCATION = new TmfLocation<Long>((Long) null);
	40	private static final int DEFAULT_CACHE_SIZE = 100;
	41
	42	private final CustomTxtTraceDefinition fDefinition;
	43	private final CustomTxtEventType fEventType;
	44	private BufferedRandomAccessFile fFile;
	45
	46	public CustomTxtTrace(final CustomTxtTraceDefinition definition) {
	47	fDefinition = definition;
	48	fEventType = new CustomTxtEventType(fDefinition);
	49	setCacheSize(DEFAULT_CACHE_SIZE);
	50	}
	51
	52	public CustomTxtTrace(final IResource resource, final CustomTxtTraceDefinition definition, final String path, final int cacheSize) throws TmfTraceException {
	53	this(definition);
	54	setCacheSize((cacheSize > 0) ? cacheSize : DEFAULT_CACHE_SIZE);
	55	initTrace(resource, path, CustomTxtEvent.class);
	56	}
	57
	58	@Override
	59	public void initTrace(final IResource resource, final String path, final Class<CustomTxtEvent> eventType) throws TmfTraceException {
	60	super.initTrace(resource, path, eventType);
	61	try {
	62	fFile = new BufferedRandomAccessFile(getPath(), "r"); //$NON-NLS-1$
	63	} catch (IOException e) {
	64	throw new TmfTraceException(e.getMessage(), e);
65	}
66	indexTrace(false);
67	}
68
69	@Override
70	public synchronized void dispose() {
71	super.dispose();
72	if (fFile != null) {
73	try {
74	fFile.close();
75	} catch (IOException e) {
76	} finally {
77	fFile = null;
78	}
79	}
80	}
81
82	@Override
83	public synchronized TmfContext seekEvent(final ITmfLocation<?> location) {
84	final CustomTxtTraceContext context = new CustomTxtTraceContext(NULL_LOCATION, ITmfContext.UNKNOWN_RANK);
85	if (NULL_LOCATION.equals(location) \|\| fFile == null) {
86	return context;
87	}
88	try {
89	if (location == null) {
90	fFile.seek(0);
91	} else if (location.getLocation() instanceof Long) {
92	fFile.seek((Long) location.getLocation());
93	}
94	String line;
95	long rawPos = fFile.getFilePointer();
96	while ((line = fFile.getNextLine()) != null) {
97	for (final InputLine input : getFirstLines()) {
98	final Matcher matcher = input.getPattern().matcher(line);
99	if (matcher.find()) {
100	context.setLocation(new TmfLocation<Long>(rawPos));
101	context.firstLineMatcher = matcher;
102	context.firstLine = line;
103	context.nextLineLocation = fFile.getFilePointer();
104	context.inputLine = input;
105	return context;
106	}
107	}
108	rawPos = fFile.getFilePointer();
109	}
110	return context;
111	} catch (final FileNotFoundException e) {
112	Activator.getDefault().logError("Error seeking event. File not found: " + getPath(), e); //$NON-NLS-1$
113	return context;
114	} catch (final IOException e) {
115	Activator.getDefault().logError("Error seeking event. File: " + getPath(), e); //$NON-NLS-1$
116	return context;
117	}
118
119	}
120
121	@Override
122	public synchronized TmfContext seekEvent(final double ratio) {
123	if (fFile == null) {
124	return new CustomTxtTraceContext(NULL_LOCATION, ITmfContext.UNKNOWN_RANK);
125	}
126	try {
127	long pos = (long) (ratio * fFile.length());
128	while (pos > 0) {
129	fFile.seek(pos - 1);
130	if (fFile.read() == '\n') {
131	break;
132	}
133	pos--;
134	}
135	final ITmfLocation<?> location = new TmfLocation<Long>(pos);
136	final TmfContext context = seekEvent(location);
137	context.setRank(ITmfContext.UNKNOWN_RANK);
138	return context;
139	} catch (final IOException e) {
140	Activator.getDefault().logError("Error seeking event. File: " + getPath(), e); //$NON-NLS-1$
141	return new CustomTxtTraceContext(NULL_LOCATION, ITmfContext.UNKNOWN_RANK);
142	}
143	}
144
145	@Override
146	public synchronized double getLocationRatio(final ITmfLocation<?> location) {
147	if (fFile == null) {
148	return 0;
149	}
150	try {
151	if (location.getLocation() instanceof Long) {
152	return (double) ((Long) location.getLocation()) / fFile.length();
153	}
154	} catch (final IOException e) {
155	Activator.getDefault().logError("Error seeking event. File: " + getPath(), e); //$NON-NLS-1$
156	}
157	return 0;
158	}
159
160	@Override
161	public ITmfLocation<?> getCurrentLocation() {
162	// TODO Auto-generated method stub
163	return null;
164	}
165
166	@Override
167	public synchronized CustomTxtEvent parseEvent(final ITmfContext tmfContext) {
168	ITmfContext context = seekEvent(tmfContext.getLocation());
169	return parse(context);
170	}
171
172	@Override
173	public synchronized CustomTxtEvent getNext(final ITmfContext context) {
174	final ITmfContext savedContext = context.clone();
175	final CustomTxtEvent event = parse(context);
176	if (event != null) {
177	updateAttributes(savedContext, event.getTimestamp());
178	context.increaseRank();
179	}
180	return event;
181	}
182
183	private synchronized CustomTxtEvent parse(final ITmfContext tmfContext) {
184	if (fFile == null) {
185	return null;
186	}
187	if (!(tmfContext instanceof CustomTxtTraceContext)) {
188	return null;
189	}
190
191	final CustomTxtTraceContext context = (CustomTxtTraceContext) tmfContext;
192	if (!(context.getLocation().getLocation() instanceof Long) \|\| NULL_LOCATION.equals(context.getLocation())) {
193	return null;
194	}
195
196	CustomTxtEvent event = parseFirstLine(context);
197
198	final HashMap<InputLine, Integer> countMap = new HashMap<InputLine, Integer>();
199	InputLine currentInput = null;
200	if (context.inputLine.childrenInputs != null && context.inputLine.childrenInputs.size() > 0) {
201	currentInput = context.inputLine.childrenInputs.get(0);
202	countMap.put(currentInput, 0);
203	}
204
205	try {
206	if (fFile.getFilePointer() != context.nextLineLocation) {
207	fFile.seek(context.nextLineLocation);
208	}
209	String line;
210	long rawPos = fFile.getFilePointer();
211	while ((line = fFile.getNextLine()) != null) {
212	boolean processed = false;
213	if (currentInput == null) {
214	for (final InputLine input : getFirstLines()) {
215	final Matcher matcher = input.getPattern().matcher(line);
216	if (matcher.find()) {
217	context.setLocation(new TmfLocation<Long>(rawPos));
218	context.firstLineMatcher = matcher;
219	context.firstLine = line;
220	context.nextLineLocation = fFile.getFilePointer();
221	context.inputLine = input;
222	return event;
223	}
224	}
225	} else {
226	if (countMap.get(currentInput) >= currentInput.getMinCount()) {
227	final List<InputLine> nextInputs = currentInput.getNextInputs(countMap);
228	if (nextInputs.size() == 0 \|\| nextInputs.get(nextInputs.size() - 1).getMinCount() == 0) {
229	for (final InputLine input : getFirstLines()) {
230	final Matcher matcher = input.getPattern().matcher(line);
231	if (matcher.find()) {
232	context.setLocation(new TmfLocation<Long>(rawPos));
233	context.firstLineMatcher = matcher;
234	context.firstLine = line;
235	context.nextLineLocation = fFile.getFilePointer();
236	context.inputLine = input;
237	return event;
238	}
239	}
240	}
241	for (final InputLine input : nextInputs) {
242	final Matcher matcher = input.getPattern().matcher(line);
243	if (matcher.find()) {
244	event.processGroups(input, matcher);
245	currentInput = input;
246	if (countMap.get(currentInput) == null) {
247	countMap.put(currentInput, 1);
248	} else {
249	countMap.put(currentInput, countMap.get(currentInput) + 1);
250	}
251	Iterator<InputLine> iter = countMap.keySet().iterator();
252	while (iter.hasNext()) {
253	final InputLine inputLine = iter.next();
254	if (inputLine.level > currentInput.level) {
255	iter.remove();
256	}
257	}
258	if (currentInput.childrenInputs != null && currentInput.childrenInputs.size() > 0) {
259	currentInput = currentInput.childrenInputs.get(0);
260	countMap.put(currentInput, 0);
261	} else if (countMap.get(currentInput) >= currentInput.getMaxCount()) {
262	if (currentInput.getNextInputs(countMap).size() > 0) {
263	currentInput = currentInput.getNextInputs(countMap).get(0);
264	if (countMap.get(currentInput) == null) {
265	countMap.put(currentInput, 0);
266	}
267	iter = countMap.keySet().iterator();
268	while (iter.hasNext()) {
269	final InputLine inputLine = iter.next();
270	if (inputLine.level > currentInput.level) {
271	iter.remove();
272	}
273	}
274	} else {
275	currentInput = null;
276	}
277	}
278	processed = true;
279	break;
280	}
281	}
282	}
283	if (! processed) {
284	final Matcher matcher = currentInput.getPattern().matcher(line);
285	if (matcher.find()) {
286	event.processGroups(currentInput, matcher);
287	countMap.put(currentInput, countMap.get(currentInput) + 1);
288	if (currentInput.childrenInputs != null && currentInput.childrenInputs.size() > 0) {
289	currentInput = currentInput.childrenInputs.get(0);
290	countMap.put(currentInput, 0);
291	} else if (countMap.get(currentInput) >= currentInput.getMaxCount()) {
292	if (currentInput.getNextInputs(countMap).size() > 0) {
293	currentInput = currentInput.getNextInputs(countMap).get(0);
294	if (countMap.get(currentInput) == null) {
295	countMap.put(currentInput, 0);
296	}
297	final Iterator<InputLine> iter = countMap.keySet().iterator();
298	while (iter.hasNext()) {
299	final InputLine inputLine = iter.next();
300	if (inputLine.level > currentInput.level) {
301	iter.remove();
302	}
303	}
304	} else {
305	currentInput = null;
306	}
307	}
308	}
309	((StringBuffer) event.getContent().getValue()).append("\n").append(line); //$NON-NLS-1$
310	}
311	}
312	rawPos = fFile.getFilePointer();
313	}
314	} catch (final IOException e) {
315	Activator.getDefault().logError("Error seeking event. File: " + getPath(), e); //$NON-NLS-1$
316	}
317	for (final Entry<InputLine, Integer> entry : countMap.entrySet()) {
318	if (entry.getValue() < entry.getKey().getMinCount()) {
319	event = null;
320	}
321	}
322	context.setLocation(NULL_LOCATION);
323	return event;
324	}
325
326	public List<InputLine> getFirstLines() {
327	return fDefinition.inputs;
328	}
329
330	public CustomTxtEvent parseFirstLine(final CustomTxtTraceContext context) {
331	final CustomTxtEvent event = new CustomTxtEvent(fDefinition, this, TmfTimestamp.ZERO, "", fEventType, ""); //$NON-NLS-1$ //$NON-NLS-2$
332	event.processGroups(context.inputLine, context.firstLineMatcher);
333	event.setContent(new CustomEventContent(event, new StringBuffer(context.firstLine)));
334	return event;
335	}
336
337	public CustomTraceDefinition getDefinition() {
338	return fDefinition;
339	}
340
341	/* (non-Javadoc)
342	* @see org.eclipse.linuxtools.tmf.core.trace.ITmfTrace#validate(org.eclipse.core.resources.IProject, java.lang.String)
343	*/
344	@Override
345	public boolean validate(IProject project, String path) {
346	return fileExists(path);
347	}
348	}