org.springframework.web.util.pattern.LiteralPathElement Maven / Gradle / Ivy
/*
* Copyright 2002-2023 the original author or authors.
*
* 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
*
* https://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 org.springframework.web.util.pattern;
import org.springframework.http.server.PathContainer.Element;
import org.springframework.http.server.PathContainer.PathSegment;
import org.springframework.web.util.pattern.PathPattern.MatchingContext;
/**
* A literal path element. In the pattern '/foo/bar/goo' there are three
* literal path elements 'foo', 'bar' and 'goo'.
*
* @author Andy Clement
* @since 5.0
*/
class LiteralPathElement extends PathElement {
private final String text;
private final int len;
private final boolean caseSensitive;
public LiteralPathElement(int pos, char[] literalText, boolean caseSensitive, char separator) {
super(pos, separator);
this.len = literalText.length;
this.caseSensitive = caseSensitive;
this.text = new String(literalText);
}
@Override
public boolean matches(int pathIndex, MatchingContext matchingContext) {
if (pathIndex >= matchingContext.pathLength) {
// no more path left to match this element
return false;
}
Element element = matchingContext.pathElements.get(pathIndex);
if (!(element instanceof PathSegment pathSegment)) {
return false;
}
String value = pathSegment.valueToMatch();
if (value.length() != this.len) {
// Not enough data to match this path element
return false;
}
if (this.caseSensitive) {
if (!this.text.equals(value)) {
return false;
}
}
else {
if (!this.text.equalsIgnoreCase(value)) {
return false;
}
}
pathIndex++;
if (isNoMorePattern()) {
if (matchingContext.determineRemainingPath) {
matchingContext.remainingPathIndex = pathIndex;
return true;
}
else {
if (pathIndex == matchingContext.pathLength) {
return true;
}
else {
return (matchingContext.isMatchOptionalTrailingSeparator() &&
(pathIndex + 1) == matchingContext.pathLength &&
matchingContext.isSeparator(pathIndex));
}
}
}
else {
return (this.next != null && this.next.matches(pathIndex, matchingContext));
}
}
@Override
public int getNormalizedLength() {
return this.len;
}
@Override
public char[] getChars() {
return this.text.toCharArray();
}
@Override
public boolean isLiteral() {
return true;
}
@Override
public String toString() {
return "Literal(" + this.text + ")";
}
}