1
14 package ch.qos.logback.core.subst;
15
16 public class Node {
17
18 enum Type {
19 LITERAL, VARIABLE
20 }
21
22 Type type;
23 Object payload;
24 Object defaultPart;
25 Node next;
26
27 public Node(Type type, Object payload) {
28 this.type = type;
29 this.payload = payload;
30 }
31
32 public Node(Type type, Object payload, Object defaultPart) {
33 this.type = type;
34 this.payload = payload;
35 this.defaultPart = defaultPart;
36 }
37
38 void append(Node newNode) {
39 if (newNode == null)
40 return;
41 Node n = this;
42 while (true) {
43 if (n.next == null) {
44 n.next = newNode;
45 return;
46 }
47 n = n.next;
48 }
49 }
50
51 @Override
52 public String toString() {
53 switch (type) {
54 case LITERAL:
55 return "Node{" + "type=" + type + ", payload='" + payload + "'}";
56 case VARIABLE:
57 StringBuilder payloadBuf = new StringBuilder();
58 StringBuilder defaultPartBuf2 = new StringBuilder();
59 if (defaultPart != null)
60 recursive((Node) defaultPart, defaultPartBuf2);
61
62 recursive((Node) payload, payloadBuf);
63 String r = "Node{" + "type=" + type + ", payload='" + payloadBuf.toString() + "'";
64 if (defaultPart != null)
65 r += ", defaultPart=" + defaultPartBuf2.toString();
66 r += '}';
67 return r;
68 }
69 return null;
70 }
71
72 public void dump() {
73 System.out.print(this.toString());
74 System.out.print(" -> ");
75 if (next != null) {
76 next.dump();
77 } else {
78 System.out.print(" null");
79 }
80 }
81
82 void recursive(Node n, StringBuilder sb) {
83 Node c = n;
84 while (c != null) {
85 sb.append(c.toString()).append(" --> ");
86 c = c.next;
87 }
88 sb.append("null ");
89 }
90
91 public void setNext(Node n) {
92 this.next = n;
93 }
94
95 @Override
96 public boolean equals(Object o) {
97 if (this == o)
98 return true;
99 if (o == null || getClass() != o.getClass())
100 return false;
101
102 Node node = (Node) o;
103
104 if (type != node.type)
105 return false;
106 if (payload != null ? !payload.equals(node.payload) : node.payload != null)
107 return false;
108 if (defaultPart != null ? !defaultPart.equals(node.defaultPart) : node.defaultPart != null)
109 return false;
110 if (next != null ? !next.equals(node.next) : node.next != null)
111 return false;
112
113 return true;
114 }
115
116 @Override
117 public int hashCode() {
118 int result = type != null ? type.hashCode() : 0;
119 result = 31 * result + (payload != null ? payload.hashCode() : 0);
120 result = 31 * result + (defaultPart != null ? defaultPart.hashCode() : 0);
121 result = 31 * result + (next != null ? next.hashCode() : 0);
122 return result;
123 }
124 }
125