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1
27 package ch.ethz.prose;
28
29 import java.io.Serializable  ;
31 import java.security.Permission ;
32
33
57 public final class ProsePermission extends Permission implements Serializable {
58 private final static String [] NAMES = {"registerListener", "startupExtensionSystem"};
59 private final static String WILDCARD = "*";
60
61 private int nameIndex = -1;
62
63
68 public ProsePermission(String name) {
69 super(name);
70
71 if (name == null) {
72 throw new NullPointerException ("name can't be null");
73 }
74
75 for (int i=0; i<NAMES.length; i++) {
76 if (name.equals(NAMES[i])) {
77 nameIndex = i;
78 break;
79 }
80 }
81
82 if (nameIndex == -1) {
83 String names = NAMES[0];
84 for (int i=1; i<NAMES.length; i++) {
85 names += ", " + NAMES[i];
86 }
87
88 throw new IllegalArgumentException ("Invalid name \""+name+"\". Valid choices are: " + names);
89 }
90 }
91
92
100 public ProsePermission(String name, String actions) {
101 this(name);
102 }
103
104
110 public boolean implies(Permission p) {
111 if (p instanceof ProsePermission) {
112 if (getName().equals(WILDCARD)) {
113 return true;
114 }
115
116 return nameIndex == ((ProsePermission) p).nameIndex;
117 }
118
119 return false;
120 }
121
122
125 public String getActions() {
126 return "";
127 }
128
129 public boolean equals(Object obj) {
130 if (obj instanceof ProsePermission) {
131 return nameIndex == ((ProsePermission) obj).nameIndex;
132 } else {
133 return false;
134 }
135 }
136
137 public int hashCode() {
138 return getName().hashCode();
139 }
140 }
141
142
143 |
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