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/*
* Copyright 2000-2011 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.intellij.psi.impl.cache.impl;
import com.intellij.lexer.Lexer;
import com.intellij.openapi.util.Key;
import com.intellij.psi.impl.cache.impl.id.IdIndexEntry;
import com.intellij.psi.impl.cache.impl.id.IdTableBuilding;
import com.intellij.psi.impl.cache.impl.id.LexerBasedIdIndexer;
import com.intellij.psi.impl.cache.impl.todo.TodoIndexEntry;
import com.intellij.psi.search.IndexPattern;
import com.intellij.util.indexing.FileContent;
import com.intellij.util.indexing.IdDataConsumer;
import gnu.trove.THashMap;
import java.util.Collections;
import java.util.Map;
public class BaseFilterLexerUtil {
private static final Key<ScanContent> scanContentKey = Key.create("id.todo.scan.content");
public static ScanContent scanContent(FileContent content, IdAndToDoScannerBasedOnFilterLexer indexer) {
ScanContent data = content.getUserData(scanContentKey);
if (data != null) {
content.putUserData(scanContentKey, null);
return data;
}
final boolean needTodo = content.getFile().isInLocalFileSystem(); // same as TodoIndex.getFilter().isAcceptable
final boolean needIdIndex = IdTableBuilding.getFileTypeIndexer(content.getFileType()) instanceof LexerBasedIdIndexer;
final IdDataConsumer consumer = needIdIndex? new IdDataConsumer():null;
final OccurrenceConsumer todoOccurrenceConsumer = new OccurrenceConsumer(consumer, needTodo);
final Lexer filterLexer = indexer.createLexer(todoOccurrenceConsumer);
filterLexer.start(content.getContentAsText());
while (filterLexer.getTokenType() != null) filterLexer.advance();
Map<TodoIndexEntry,Integer> todoMap = null;
if (needTodo) {
for (IndexPattern indexPattern : IndexPatternUtil.getIndexPatterns()) {
final int count = todoOccurrenceConsumer.getOccurrenceCount(indexPattern);
if (count > 0) {
if (todoMap == null) todoMap = new THashMap<TodoIndexEntry, Integer>();
todoMap.put(new TodoIndexEntry(indexPattern.getPatternString(), indexPattern.isCaseSensitive()), count);
}
}
}
data = new ScanContent(
consumer != null? consumer.getResult():Collections.<IdIndexEntry, Integer>emptyMap(),
todoMap != null ? todoMap: Collections.<TodoIndexEntry,Integer>emptyMap()
);
if (needIdIndex && needTodo) content.putUserData(scanContentKey, data);
return data;
}
public static class ScanContent {
public final Map<IdIndexEntry, Integer> idMap;
public final Map<TodoIndexEntry,Integer> todoMap;
public ScanContent(Map<IdIndexEntry, Integer> _idMap, Map<TodoIndexEntry, Integer> _todoMap) {
idMap = _idMap;
todoMap = _todoMap;
}
}
}
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