/*
* Copyright 2000-2013 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.vcs.log.ui.filter;
import com.intellij.openapi.util.text.StringUtil;
import com.intellij.vcs.log.VcsCommitMetadata;
import com.intellij.vcs.log.VcsLogDetailsFilter;
import com.intellij.vcs.log.VcsLogTextFilter;
import com.intellij.vcs.log.impl.VcsLogUtil;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import java.util.regex.Pattern;
import java.util.regex.PatternSyntaxException;
public class VcsLogTextFilterImpl implements VcsLogDetailsFilter, VcsLogTextFilter {
@NotNull private final String myText;
private final boolean myMatchCase;
@Nullable private final Pattern myPattern;
public VcsLogTextFilterImpl(@NotNull String text, boolean isRegexAllowed, boolean matchCase) {
myText = text;
myMatchCase = matchCase;
myPattern = createPattern(myText, isRegexAllowed, myMatchCase);
}
@Nullable
private static Pattern createPattern(@NotNull String text, boolean isRegexAllowed, boolean matchCase) {
if (isRegexAllowed && VcsLogUtil.maybeRegexp(text)) {
try {
return matchCase ? Pattern.compile(text) : Pattern.compile(text, Pattern.CASE_INSENSITIVE);
}
catch (PatternSyntaxException ignored) {
}
}
return null;
}
// used in upsource
@SuppressWarnings("unused")
public VcsLogTextFilterImpl(@NotNull String text) {
this(text, false, false);
}
@Override
public boolean matches(@NotNull VcsCommitMetadata details) {
return matches(this, details.getFullMessage());
}
@Override
@NotNull
public String getText() {
return myText;
}
@Override
public boolean isRegex() {
return myPattern != null;
}
@Override
public boolean matchesCase() {
return myMatchCase;
}
@Override
public String toString() {
return (isRegex() ? "matching " : "containing ") + myText + " (case " + (myMatchCase ? "sensitive" : "insensitive") + ")";
}
public static boolean matches(@NotNull VcsLogTextFilter filter, @NotNull String message) {
Pattern pattern;
if (filter instanceof VcsLogTextFilterImpl) {
pattern = ((VcsLogTextFilterImpl)filter).myPattern;
}
else {
pattern = createPattern(filter.getText(), filter.isRegex(), filter.matchesCase());
}
if (pattern != null) return pattern.matcher(message).find();
if (filter.matchesCase()) return message.contains(filter.getText());
return StringUtil.containsIgnoreCase(message, filter.getText());
}
}