com.liferay.portal.scripting.ClassVisibilityChecker Maven / Gradle / Ivy
/**
* Copyright (c) 2000-present Liferay, Inc. All rights reserved.
*
* This library 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 2.1 of the License, or (at your option)
* any later version.
*
* This library 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.
*/
package com.liferay.portal.scripting;
import java.util.HashSet;
import java.util.Set;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/**
* @author Alberto Montero
* @author Brian Wing Shun Chan
*/
public class ClassVisibilityChecker {
public static final String ALL_CLASSES = "all_classes";
public ClassVisibilityChecker(
Set allowedClassNames, Set forbiddenClassNames) {
_forbiddenClassNames = forbiddenClassNames;
if ((allowedClassNames != null) &&
allowedClassNames.contains(ALL_CLASSES)) {
_allowAll = true;
}
else {
_allowAll = false;
}
if (_forbiddenClassNames.contains(ALL_CLASSES)) {
_denyAll = true;
}
else {
_denyAll = false;
}
if (!_allowAll && !_denyAll) {
_allowedPatterns = new HashSet<>();
for (String allowedClassName : allowedClassNames) {
Pattern allowedPattern = Pattern.compile(allowedClassName);
_allowedPatterns.add(allowedPattern);
}
}
else {
_allowedPatterns = null;
}
}
public boolean isVisible(String className) {
if (_denyAll || _forbiddenClassNames.contains(className)) {
return false;
}
if (_allowAll) {
return true;
}
for (Pattern allowedPattern : _allowedPatterns) {
Matcher matcher = allowedPattern.matcher(className);
if (matcher.find()) {
return true;
}
}
return false;
}
private final boolean _allowAll;
private final Set _allowedPatterns;
private final boolean _denyAll;
private final Set _forbiddenClassNames;
}