--- a/src/main/java/de/uapcore/lightpit/PathPattern.java Mon Jan 04 17:30:10 2021 +0100
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,125 +0,0 @@
-package de.uapcore.lightpit;
-
-import java.util.ArrayList;
-import java.util.List;
-
-public final class PathPattern {
-
- private final List<String> nodePatterns;
- private final boolean collection;
-
- /**
- * Constructs a new path pattern.
- * The special directories . and .. are disallowed in the pattern.
- *
- * @param pattern
- */
- public PathPattern(String pattern) {
- nodePatterns = parse(pattern);
- collection = pattern.endsWith("/");
- }
-
- private List<String> parse(String pattern) {
-
- var nodes = new ArrayList<String>();
- var parts = pattern.split("/");
-
- for (var part : parts) {
- if (part.isBlank()) continue;
- if (part.equals(".") || part.equals(".."))
- throw new IllegalArgumentException("Path must not contain '.' or '..' nodes.");
- nodes.add(part);
- }
-
- return nodes;
- }
-
- /**
- * Matches a path against this pattern.
- * The path must be canonical in the sense that no . or .. parts occur.
- *
- * @param path the path to match
- * @return true if the path matches the pattern, false otherwise
- */
- public boolean matches(String path) {
- if (collection ^ path.endsWith("/"))
- return false;
-
- var nodes = parse(path);
- if (nodePatterns.size() != nodes.size())
- return false;
-
- for (int i = 0 ; i < nodePatterns.size() ; i++) {
- var pattern = nodePatterns.get(i);
- var node = nodes.get(i);
- if (pattern.startsWith("$"))
- continue;
- if (!pattern.equals(node))
- return false;
- }
-
- return true;
- }
-
- /**
- * Returns the path parameters found in the specified path using this pattern.
- * The return value of this method is undefined, if the patter does not match.
- *
- * @param path the path
- * @return the path parameters, if any, or an empty map
- * @see #matches(String)
- */
- public PathParameters obtainPathParameters(String path) {
- var params = new PathParameters();
-
- var nodes = parse(path);
-
- for (int i = 0 ; i < Math.min(nodes.size(), nodePatterns.size()) ; i++) {
- var pattern = nodePatterns.get(i);
- var node = nodes.get(i);
- if (pattern.startsWith("$")) {
- params.put(pattern.substring(1), node);
- }
- }
-
- return params;
- }
-
- @Override
- public int hashCode() {
- var str = new StringBuilder();
- for (var node : nodePatterns) {
- if (node.startsWith("$")) {
- str.append("/$");
- } else {
- str.append('/');
- str.append(node);
- }
- }
- if (collection)
- str.append('/');
-
- return str.toString().hashCode();
- }
-
- @Override
- public boolean equals(Object obj) {
- if (!obj.getClass().equals(PathPattern.class))
- return false;
-
- var other = (PathPattern) obj;
- if (collection ^ other.collection || nodePatterns.size() != other.nodePatterns.size())
- return false;
-
- for (int i = 0 ; i < nodePatterns.size() ; i++) {
- var left = nodePatterns.get(i);
- var right = other.nodePatterns.get(i);
- if (left.startsWith("$") && right.startsWith("$"))
- continue;
- if (!left.equals(right))
- return false;
- }
-
- return true;
- }
-}