1 /*
2 * Copyright 2018-2022 the original author or authors.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 package org.bremersee.geojson.model;
18
19 import java.math.BigDecimal;
20
21 /**
22 * The interface lat lon aware.
23 *
24 * @author Christian Bremer
25 */
26 public interface LatLonAware {
27
28 /**
29 * Gets latitude.
30 *
31 * @return the latitude
32 */
33 BigDecimal getLatitude();
34
35 /**
36 * Gets longitude.
37 *
38 * @return the longitude
39 */
40 BigDecimal getLongitude();
41
42 /**
43 * Determines whether latitude and longitude have values.
44 *
45 * @return {@code true} if latitude and longitude is not {@code null}, otherwise {@code false}
46 */
47 default boolean hasValues() {
48 return getLatitude() != null && getLongitude() != null;
49 }
50
51 /**
52 * To comma separated latitude longitude string.
53 *
54 * @return the string
55 */
56 default String toLatLonString() {
57 return hasValues()
58 ? getLatitude().toPlainString() + "," + getLongitude().toPlainString()
59 : "";
60 }
61
62 /**
63 * To comma separated longitude latitude string.
64 *
65 * @return the string
66 */
67 default String toLonLatString() {
68 return hasValues()
69 ? getLongitude().toPlainString() + "," + getLatitude().toPlainString()
70 : "";
71 }
72
73 /**
74 * Returns a new builder.
75 *
76 * @return the builder
77 */
78 static Builder builder() {
79 return new BuilderImpl();
80 }
81
82 /**
83 * The builder interface.
84 */
85 interface Builder {
86
87 /**
88 * Sets latitude and longitude from the given object.
89 *
90 * @param latLonAware the latitude and longitude aware object
91 * @return the builder
92 */
93 Builder from(LatLonAware latLonAware);
94
95 /**
96 * Sets latitude.
97 *
98 * @param latitude the latitude
99 * @return the builder
100 */
101 Builder latitude(BigDecimal latitude);
102
103 /**
104 * Sets latitude.
105 *
106 * @param latitude the latitude
107 * @return the builder
108 */
109 Builder latitude(double latitude);
110
111 /**
112 * Sets longitude.
113 *
114 * @param longitude the longitude
115 * @return the builder
116 */
117 Builder longitude(BigDecimal longitude);
118
119 /**
120 * Sets longitude.
121 *
122 * @param longitude the longitude
123 * @return the builder
124 */
125 Builder longitude(double longitude);
126
127 /**
128 * Build latitude and longitude aware.
129 *
130 * @return the lat lon aware
131 */
132 LatLonAware build();
133 }
134
135 /**
136 * The builder implementation.
137 */
138 class BuilderImpl implements Builder {
139
140 private BigDecimal latitude;
141
142 private BigDecimal longitude;
143
144 @Override
145 public Builder from(LatLonAware latLonAware) {
146 if (latLonAware != null) {
147 latitude = latLonAware.getLatitude();
148 longitude = latLonAware.getLongitude();
149 }
150 return this;
151 }
152
153 @Override
154 public Builder latitude(BigDecimal latitude) {
155 this.latitude = latitude;
156 return this;
157 }
158
159 @Override
160 public Builder latitude(double latitude) {
161 this.latitude = BigDecimal.valueOf(latitude);
162 return this;
163 }
164
165 @Override
166 public Builder longitude(BigDecimal longitude) {
167 this.longitude = longitude;
168 return this;
169 }
170
171 @Override
172 public Builder longitude(double longitude) {
173 this.longitude = BigDecimal.valueOf(longitude);
174 return this;
175 }
176
177 @Override
178 public LatLonAware build() {
179 return new LatLon(latitude, longitude);
180 }
181 }
182
183 }