com.liferay.portal.kernel.util.StringParserFragment Maven / Gradle / Ivy
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Contains interfaces for the portal services. Interfaces are only loaded by the global class loader and are shared by all plugins.
/**
* SPDX-FileCopyrightText: (c) 2000 Liferay, Inc. https://liferay.com
* SPDX-License-Identifier: LGPL-2.1-or-later OR LicenseRef-Liferay-DXP-EULA-2.0.0-2023-06
*/
package com.liferay.portal.kernel.util;
import com.liferay.petra.concurrent.ConcurrentReferenceValueHashMap;
import com.liferay.petra.memory.FinalizeManager;
import com.liferay.petra.string.CharPool;
import com.liferay.petra.string.StringPool;
import java.util.Map;
import java.util.regex.Pattern;
/**
* @author Connor McKay
* @author Brian Wing Shun Chan
*/
public class StringParserFragment {
public static StringParserFragment create(String chunk) {
StringParserFragment stringParserFragment = _stringParserFragments.get(
chunk);
if (stringParserFragment == null) {
stringParserFragment = new StringParserFragment(chunk);
_stringParserFragments.put(chunk, stringParserFragment);
}
return stringParserFragment;
}
public String getName() {
return _name;
}
public String getPattern() {
return _matcher.toString();
}
public String getToken() {
return _token;
}
public boolean isRaw() {
return _raw;
}
public boolean matches(String parameter) {
return _matcher.matches(parameter);
}
protected StringParserFragment(String fragment) {
if ((fragment == null) || (fragment.length() < 3)) {
throw new IllegalArgumentException(
"Fragment is invalid: " + fragment);
}
int index = fragment.indexOf(CharPool.COLON);
String name = null;
if (index < 0) {
name = fragment.substring(1, fragment.length() - 1);
_matcher = _defaultMatcher;
}
else {
name = fragment.substring(1, index);
String pattern = fragment.substring(
index + 1, fragment.length() - 1);
if (Validator.isNull(pattern)) {
throw new IllegalArgumentException(
"Pattern is null: " + fragment);
}
_matcher = _getMatcher(pattern);
}
if (name.isEmpty()) {
throw new IllegalArgumentException("Name is null: " + fragment);
}
if (name.charAt(0) == CharPool.PERCENT) {
name = name.substring(1);
if (name.isEmpty()) {
throw new IllegalArgumentException(
"Name is invalid: " + fragment);
}
_raw = true;
}
else {
_raw = false;
}
_name = name;
_token = StringBundler.concat(
StringPool.OPEN_CURLY_BRACE, _name, StringPool.CLOSE_CURLY_BRACE);
}
private Matcher _getMatcher(String pattern) {
if (pattern.equals("\\d+")) {
return new DigitMatcher();
}
if (pattern.equals("[^/]+")) {
return new NotSlashMatcher();
}
if (pattern.equals("(?!id$)[^/]+") || pattern.equals("(?!id/)[^/]+")) {
return new NotIdMatcher(pattern);
}
return new PatternMatcher(pattern);
}
private static final Matcher _defaultMatcher = new DefaultMatcher();
private static final Map
_stringParserFragments = new ConcurrentReferenceValueHashMap<>(
FinalizeManager.SOFT_REFERENCE_FACTORY);
private final Matcher _matcher;
private final String _name;
private final boolean _raw;
private final String _token;
private static class DefaultMatcher implements Matcher {
@Override
public boolean matches(String s) {
if (s.isEmpty()) {
return false;
}
for (int i = 0; i < s.length(); i++) {
char c = s.charAt(i);
if ((c == CharPool.SLASH) || (c == CharPool.PERIOD)) {
return false;
}
}
return true;
}
@Override
public String toString() {
return "[^/\\.]+";
}
}
private static class DigitMatcher implements Matcher {
@Override
public boolean matches(String s) {
if (s.isEmpty()) {
return false;
}
for (int i = 0; i < s.length(); i++) {
char c = s.charAt(i);
if ((c < CharPool.NUMBER_0) || (c > CharPool.NUMBER_9)) {
return false;
}
}
return true;
}
@Override
public String toString() {
return "\\d+";
}
}
private static class NotIdMatcher implements Matcher {
@Override
public boolean matches(String s) {
if (s.equals("id") || (s.indexOf(CharPool.SLASH) != -1)) {
return false;
}
return true;
}
@Override
public String toString() {
return _pattern;
}
private NotIdMatcher(String pattern) {
_pattern = pattern;
}
private final String _pattern;
}
private static class NotSlashMatcher implements Matcher {
@Override
public boolean matches(String s) {
if (s.isEmpty()) {
return false;
}
if (s.indexOf(CharPool.SLASH) == -1) {
return true;
}
return false;
}
@Override
public String toString() {
return "[^/]+";
}
}
private static class PatternMatcher implements Matcher {
@Override
public boolean matches(String s) {
java.util.regex.Matcher matcher = _pattern.matcher(s);
return matcher.matches();
}
@Override
public String toString() {
return _pattern.toString();
}
private PatternMatcher(String pattern) {
_pattern = Pattern.compile(pattern);
}
private final Pattern _pattern;
}
private interface Matcher {
public boolean matches(String s);
}
}