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1
23
24 package org.apache.slide.common;
25
26 import java.util.StringTokenizer  ;
27
28
33 public final class UriPath {
34
35 private String [] tokens;
36
37 private UriPath() {
38 }
39
40 private UriPath(String [] tokens) {
41 this.tokens = tokens;
42 }
43
44 public UriPath(String uri) {
45 StringTokenizer t = new StringTokenizer ( uri, "/" );
46 this.tokens = new String [t.countTokens()];
47 for (int i = 0; t.hasMoreTokens(); i++) {
48 tokens[i] = t.nextToken();
49 }
50 }
51
52 public String [] tokens() {
53 return tokens;
54 }
55
56 public String lastSegment() {
57 return tokens.length > 0
58 ? tokens[ tokens.length - 1 ]
59 : null;
60 }
61
62 public UriPath parent() {
63 if (this.tokens.length == 0) {
64 return null;
65 }
66 return subUriPath(0, tokens.length - 1);
67 }
68
69 public UriPath child( String segment ) {
70 String [] ctokens = new String [tokens.length + 1];
71 for (int i = 0; i < tokens.length; i++) {
72 ctokens[i] = tokens[i];
73 }
74 ctokens[tokens.length] = segment;
75 return new UriPath(ctokens);
76 }
77
78 public UriPath subUriPath(int start, int end) {
79 UriPath result = new UriPath();
80 result.tokens = new String [end - start];
81 System.arraycopy(tokens, start, result.tokens, 0, result.tokens.length);
82 return result;
83 }
84
85 public boolean equals(Object o) {
86 boolean result = false;
87 if (o instanceof UriPath) {
88 UriPath other = (UriPath)o;
89 if (other.tokens.length == this.tokens.length) {
90 result = true;
91 for (int i = 0; i < this.tokens.length; i++) {
92 if (!other.tokens[i].equals(this.tokens[i])) {
93 result = false;
94 break;
95 }
96 }
97 }
98 }
99 return result;
100 }
101
102 public int hashCode() {
103 if (tokens.length > 0) {
104 return tokens[tokens.length - 1].hashCode();
105 }
106 else {
107 return 0;
108 }
109 }
110
111 public String toString() {
112 if (tokens.length > 0) {
113 StringBuffer b = new StringBuffer ();
114 for (int i = 0; i < tokens.length; i++) {
115 b.append("/").append(tokens[i]);
116 }
117 return b.toString();
118 }
119 else {
120 return "/";
121 }
122 }
123 }
124 |
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