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/*
* SonarQube, open source software quality management tool.
* Copyright (C) 2008-2014 SonarSource
* mailto:contact AT sonarsource DOT com
*
* SonarQube is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* SonarQube is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
package org.sonar.batch.highlighting;
import com.google.common.collect.Sets;
import org.sonar.api.batch.sensor.highlighting.TypeOfText;
import com.google.common.annotations.VisibleForTesting;
import com.google.common.collect.Ordering;
import javax.annotation.Nullable;
import java.util.Iterator;
import java.util.Set;
public class SyntaxHighlightingDataBuilder {
private Set<SyntaxHighlightingRule> syntaxHighlightingRuleSet;
public SyntaxHighlightingDataBuilder() {
syntaxHighlightingRuleSet = Sets.newTreeSet(new Ordering<SyntaxHighlightingRule>() {
@Override
public int compare(@Nullable SyntaxHighlightingRule left,
@Nullable SyntaxHighlightingRule right) {
int result = left.getStartPosition() - right.getStartPosition();
if (result == 0) {
result = left.getEndPosition() - right.getEndPosition();
}
return result;
}
});
}
@VisibleForTesting
public Set<SyntaxHighlightingRule> getSyntaxHighlightingRuleSet() {
return syntaxHighlightingRuleSet;
}
public SyntaxHighlightingDataBuilder registerHighlightingRule(int startOffset, int endOffset, TypeOfText typeOfText) {
SyntaxHighlightingRule syntaxHighlightingRule = SyntaxHighlightingRule.create(startOffset, endOffset,
typeOfText);
this.syntaxHighlightingRuleSet.add(syntaxHighlightingRule);
return this;
}
public SyntaxHighlightingData build() {
checkOverlappingBoudaries();
return new SyntaxHighlightingData(syntaxHighlightingRuleSet);
}
private void checkOverlappingBoudaries() {
if (syntaxHighlightingRuleSet.size() > 1) {
Iterator<SyntaxHighlightingRule> it = syntaxHighlightingRuleSet.iterator();
SyntaxHighlightingRule previous = it.next();
while (it.hasNext()) {
SyntaxHighlightingRule current = it.next();
if (previous.getEndPosition() > current.getStartPosition() && !(previous.getEndPosition() >= current.getEndPosition())) {
String errorMsg = String.format("Cannot register highlighting rule for characters from %s to %s as it " +
"overlaps at least one existing rule", current.getStartPosition(), current.getEndPosition());
throw new IllegalStateException(errorMsg);
}
previous = current;
}
}
}
}
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