1 | // License: GPL. For details, see LICENSE file.
|
---|
2 | package org.openstreetmap.josm.data.osm;
|
---|
3 |
|
---|
4 | import java.util.Arrays;
|
---|
5 |
|
---|
6 | import org.openstreetmap.josm.tools.CheckParameterUtil;
|
---|
7 |
|
---|
8 | /**
|
---|
9 | * A linkage class that can be used by an relation to keep a list of
|
---|
10 | * members. Since membership may be qualified by a "role", a simple
|
---|
11 | * list is not sufficient.
|
---|
12 | *
|
---|
13 | */
|
---|
14 | public class RelationMember implements PrimitiveId {
|
---|
15 |
|
---|
16 | /**
|
---|
17 | *
|
---|
18 | */
|
---|
19 | private final String role;
|
---|
20 |
|
---|
21 | /**
|
---|
22 | *
|
---|
23 | */
|
---|
24 | private final OsmPrimitive member;
|
---|
25 |
|
---|
26 | /**
|
---|
27 | * Returns the role of this relation member.
|
---|
28 | * @return Role name or "". Never returns null
|
---|
29 | * @since 1930
|
---|
30 | */
|
---|
31 | public String getRole() {
|
---|
32 | return role;
|
---|
33 | }
|
---|
34 |
|
---|
35 | /**
|
---|
36 | * Determines if this relation member has a role.
|
---|
37 | * @return True if role is set
|
---|
38 | * @since 1930
|
---|
39 | */
|
---|
40 | public boolean hasRole() {
|
---|
41 | return !"".equals(role);
|
---|
42 | }
|
---|
43 |
|
---|
44 | /**
|
---|
45 | * Determines if this relation member's role is in the given list.
|
---|
46 | * @param roles The roles to look after
|
---|
47 | * @return True if role is in the given list
|
---|
48 | * @since 6305
|
---|
49 | */
|
---|
50 | public boolean hasRole(String ... roles) {
|
---|
51 | return Arrays.asList(roles).contains(role);
|
---|
52 | }
|
---|
53 |
|
---|
54 | /**
|
---|
55 | * Determines if this relation member is a relation.
|
---|
56 | * @return True if member is relation
|
---|
57 | * @since 1937
|
---|
58 | */
|
---|
59 | public boolean isRelation() {
|
---|
60 | return member instanceof Relation;
|
---|
61 | }
|
---|
62 |
|
---|
63 | /**
|
---|
64 | * Determines if this relation member is a way.
|
---|
65 | * @return True if member is way
|
---|
66 | * @since 1937
|
---|
67 | */
|
---|
68 | public boolean isWay() {
|
---|
69 | return member instanceof Way;
|
---|
70 | }
|
---|
71 |
|
---|
72 | /**
|
---|
73 | *
|
---|
74 | * @return type of member for icon display
|
---|
75 | * @since 3844
|
---|
76 | */
|
---|
77 | public OsmPrimitiveType getDisplayType() {
|
---|
78 | return member.getDisplayType();
|
---|
79 | }
|
---|
80 |
|
---|
81 | /**
|
---|
82 | * Determines if this relation member is a node.
|
---|
83 | * @return True if member is node
|
---|
84 | * @since 1937
|
---|
85 | */
|
---|
86 | public boolean isNode() {
|
---|
87 | return member instanceof Node;
|
---|
88 | }
|
---|
89 |
|
---|
90 | /**
|
---|
91 | * Returns the relation member as a relation.
|
---|
92 | * @return Member as relation
|
---|
93 | * @since 1937
|
---|
94 | */
|
---|
95 | public Relation getRelation() {
|
---|
96 | return (Relation)member;
|
---|
97 | }
|
---|
98 |
|
---|
99 | /**
|
---|
100 | * Returns the relation member as a way.
|
---|
101 | * @return Member as way
|
---|
102 | * @since 1937
|
---|
103 | */
|
---|
104 | public Way getWay() {
|
---|
105 | return (Way)member;
|
---|
106 | }
|
---|
107 |
|
---|
108 | /**
|
---|
109 | * Returns the relation member as a node.
|
---|
110 | * @return Member as node
|
---|
111 | * @since 1937
|
---|
112 | */
|
---|
113 | public Node getNode() {
|
---|
114 | return (Node)member;
|
---|
115 | }
|
---|
116 |
|
---|
117 | /**
|
---|
118 | * Returns the relation member.
|
---|
119 | * @return Member. Returned value is never null.
|
---|
120 | * @since 1937
|
---|
121 | */
|
---|
122 | public OsmPrimitive getMember() {
|
---|
123 | return member;
|
---|
124 | }
|
---|
125 |
|
---|
126 | /**
|
---|
127 | * Constructs a new {@code RelationMember}.
|
---|
128 | * @param role Can be null, in this case it's save as ""
|
---|
129 | * @param member Cannot be null
|
---|
130 | * @throws IllegalArgumentException thrown if member is <code>null</code>
|
---|
131 | */
|
---|
132 | public RelationMember(String role, OsmPrimitive member) {
|
---|
133 | CheckParameterUtil.ensureParameterNotNull(member, "member");
|
---|
134 | if (role == null) {
|
---|
135 | role = "";
|
---|
136 | }
|
---|
137 | this.role = role;
|
---|
138 | this.member = member;
|
---|
139 | }
|
---|
140 |
|
---|
141 | /**
|
---|
142 | * Copy constructor.
|
---|
143 | * This constructor is left only for backwards compatibility. Copying RelationMember doesn't make sense
|
---|
144 | * because it's immutable
|
---|
145 | * @param other relation member to be copied.
|
---|
146 | */
|
---|
147 | public RelationMember(RelationMember other) {
|
---|
148 | this(other.role, other.member);
|
---|
149 | }
|
---|
150 |
|
---|
151 | @Override public String toString() {
|
---|
152 | return '"' + role + "\"=" + member;
|
---|
153 | }
|
---|
154 |
|
---|
155 | /**
|
---|
156 | * Replies true, if this relation member refers to the primitive
|
---|
157 | *
|
---|
158 | * @param primitive the primitive to check
|
---|
159 | * @return true, if this relation member refers to the primitive
|
---|
160 | */
|
---|
161 | public boolean refersTo(OsmPrimitive primitive) {
|
---|
162 | return member == primitive;
|
---|
163 | }
|
---|
164 |
|
---|
165 | @Override
|
---|
166 | public int hashCode() {
|
---|
167 | final int prime = 31;
|
---|
168 | int result = 1;
|
---|
169 | result = prime * result + member.hashCode();
|
---|
170 | result = prime * result + role.hashCode();
|
---|
171 | return result;
|
---|
172 | }
|
---|
173 |
|
---|
174 | @Override
|
---|
175 | public boolean equals(Object obj) {
|
---|
176 | if (obj instanceof RelationMember) {
|
---|
177 | RelationMember other = (RelationMember) obj;
|
---|
178 | return member.equals(other.getMember()) && role.equals(other.getRole());
|
---|
179 | } else
|
---|
180 | return false;
|
---|
181 | }
|
---|
182 |
|
---|
183 | /**
|
---|
184 | * PrimitiveId implementation. Returns the same value as getMember().getType()
|
---|
185 | */
|
---|
186 | @Override
|
---|
187 | public OsmPrimitiveType getType() {
|
---|
188 | return member.getType();
|
---|
189 | }
|
---|
190 |
|
---|
191 | /**
|
---|
192 | * PrimitiveId implementation. Returns the same value as getMemberType().getUniqueId()
|
---|
193 | */
|
---|
194 | @Override
|
---|
195 | public long getUniqueId() {
|
---|
196 | return member.getUniqueId();
|
---|
197 | }
|
---|
198 |
|
---|
199 | @Override
|
---|
200 | public boolean isNew() {
|
---|
201 | return member.isNew();
|
---|
202 | }
|
---|
203 | }
|
---|