svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.dal / org.gvsig.fmap.dal.impl / src / main / java / org / gvsig / fmap / dal / feature / impl / featurereference / FeatureReferencePK.java @ 46977
History | View | Annotate | Download (7.98 KB)
1 | 45647 | fdiaz | /*
|
---|---|---|---|
2 | * To change this license header, choose License Headers in Project Properties.
|
||
3 | * To change this template file, choose Tools | Templates
|
||
4 | * and open the template in the editor.
|
||
5 | */
|
||
6 | package org.gvsig.fmap.dal.feature.impl.featurereference; |
||
7 | |||
8 | import java.lang.ref.WeakReference; |
||
9 | import java.util.Base64; |
||
10 | import java.util.List; |
||
11 | 45688 | fdiaz | import java.util.Objects; |
12 | import javax.json.JsonObject; |
||
13 | 45647 | fdiaz | import org.apache.commons.lang3.ArrayUtils; |
14 | import org.gvsig.fmap.dal.exception.DataException; |
||
15 | import org.gvsig.fmap.dal.feature.Feature; |
||
16 | import org.gvsig.fmap.dal.feature.FeatureAttributeDescriptor; |
||
17 | import org.gvsig.fmap.dal.feature.FeatureStore; |
||
18 | import org.gvsig.fmap.dal.feature.FeatureType; |
||
19 | import org.gvsig.fmap.dal.feature.impl.DefaultFeatureStore; |
||
20 | import org.gvsig.fmap.dal.feature.spi.FeatureProvider; |
||
21 | import org.gvsig.fmap.dal.feature.spi.FeatureReferenceProviderServices; |
||
22 | 45688 | fdiaz | import org.gvsig.json.Json; |
23 | 46956 | fdiaz | import org.gvsig.json.JsonArrayBuilder; |
24 | 45688 | fdiaz | import org.gvsig.json.JsonObjectBuilder; |
25 | 45647 | fdiaz | import org.gvsig.tools.persistence.Persistent; |
26 | import org.gvsig.tools.persistence.PersistentState; |
||
27 | import org.gvsig.tools.persistence.exception.PersistenceException; |
||
28 | |||
29 | /**
|
||
30 | *
|
||
31 | * @author fdiaz
|
||
32 | */
|
||
33 | public class FeatureReferencePK implements FeatureReferenceProviderServices, Persistent { |
||
34 | |||
35 | 45688 | fdiaz | public static final String PK_TYPE = "pk"; |
36 | |||
37 | 45647 | fdiaz | private Object[] pk; |
38 | private String[] pkNames; |
||
39 | private WeakReference storeRef; |
||
40 | private String featureTypeId; |
||
41 | 45688 | fdiaz | private Integer myHashCode; |
42 | 45647 | fdiaz | |
43 | /*friend*/
|
||
44 | FeatureReferencePK(FeatureStore store, FeatureProvider data) { |
||
45 | this.storeRef = new WeakReference(store); |
||
46 | this.featureTypeId = store.getDefaultFeatureTypeQuietly().getId();
|
||
47 | 45688 | fdiaz | this.doCalculatePK(data);
|
48 | 45647 | fdiaz | } |
49 | |||
50 | 45688 | fdiaz | FeatureReferencePK(FeatureStore store, JsonObject code) { |
51 | 46977 | fdiaz | try {
|
52 | this.storeRef = new WeakReference(store); |
||
53 | this.featureTypeId = store.getDefaultFeatureTypeQuietly().getId();
|
||
54 | this.pk = Json.toArray(code, "values", new Object[code.getJsonArray("values").size()]); |
||
55 | this.pkNames = (String[]) Json.toArray(code, "names", new String[code.getJsonArray("names").size()]); |
||
56 | } catch (Exception ex) { |
||
57 | throw ex;
|
||
58 | } |
||
59 | 45688 | fdiaz | } |
60 | |||
61 | public FeatureReferencePK() {
|
||
62 | //For persistence use only
|
||
63 | } |
||
64 | |||
65 | 45647 | fdiaz | public void calculatePK(FeatureProvider fdata) { |
66 | 45688 | fdiaz | doCalculatePK(fdata); |
67 | } |
||
68 | |||
69 | private void doCalculatePK(FeatureProvider fdata) { |
||
70 | 45647 | fdiaz | FeatureAttributeDescriptor[] pkattrs = fdata.getType().getPrimaryKey();
|
71 | if (ArrayUtils.isEmpty(pkattrs)) {
|
||
72 | 45688 | fdiaz | throw new IllegalArgumentException("Feature don't has primary key"); |
73 | 45647 | fdiaz | } |
74 | this.pk = new Object[pkattrs.length]; |
||
75 | this.pkNames = new String[pkattrs.length]; |
||
76 | int n = 0; |
||
77 | for (FeatureAttributeDescriptor pkattr : pkattrs) {
|
||
78 | this.pk[n] = fdata.get(pkattr.getIndex());
|
||
79 | this.pkNames[n] = pkattr.getName();
|
||
80 | n++; |
||
81 | } |
||
82 | } |
||
83 | |||
84 | @Override
|
||
85 | public Object getOID() { |
||
86 | return null; |
||
87 | } |
||
88 | |||
89 | @Override
|
||
90 | public String[] getKeyNames() { |
||
91 | return this.pkNames; |
||
92 | } |
||
93 | |||
94 | @Override
|
||
95 | public Object getKeyValue(String name) { |
||
96 | for (int i = 0; i < pkNames.length; i++) { |
||
97 | if (pkNames[i].equalsIgnoreCase(name)) {
|
||
98 | return pk[i];
|
||
99 | } |
||
100 | } |
||
101 | // FIXME exception????
|
||
102 | return null; |
||
103 | } |
||
104 | |||
105 | @Override
|
||
106 | public String getFeatureTypeId() { |
||
107 | return featureTypeId;
|
||
108 | } |
||
109 | |||
110 | @Override
|
||
111 | public Feature getFeature() throws DataException { |
||
112 | return this.getStore().getFeatureByReference(this); |
||
113 | } |
||
114 | |||
115 | @Override
|
||
116 | public Feature getFeatureQuietly() {
|
||
117 | try {
|
||
118 | return this.getFeature(); |
||
119 | } catch (Exception e) { |
||
120 | return null; |
||
121 | } |
||
122 | } |
||
123 | |||
124 | @Override
|
||
125 | public Feature getFeature(FeatureType featureType) throws DataException { |
||
126 | return this.getStore().getFeatureByReference(this, featureType); |
||
127 | } |
||
128 | |||
129 | private DefaultFeatureStore getStore() {
|
||
130 | return (DefaultFeatureStore) this.storeRef.get(); |
||
131 | } |
||
132 | |||
133 | @Override
|
||
134 | public boolean isNewFeature() { |
||
135 | return false; |
||
136 | } |
||
137 | |||
138 | @Override
|
||
139 | public String getCode() { |
||
140 | 46956 | fdiaz | String s = toJsonBuilder().toString();
|
141 | 45647 | fdiaz | String r = Base64.getEncoder().encodeToString(s.getBytes());
|
142 | return r;
|
||
143 | } |
||
144 | |||
145 | @Override
|
||
146 | public void saveToState(PersistentState state) throws PersistenceException { |
||
147 | 45688 | fdiaz | state.set("type", PK_TYPE);
|
148 | 45647 | fdiaz | state.set("store", (Persistent) storeRef.get());
|
149 | state.set("featureTypeId", featureTypeId);
|
||
150 | if (pk == null) { |
||
151 | state.setNull("pk");
|
||
152 | state.setNull("pkNames");
|
||
153 | } else {
|
||
154 | state.set("pk", pk);
|
||
155 | state.set("pkNames", pkNames);
|
||
156 | } |
||
157 | 45738 | fdiaz | state.set("isNewFeature", isNewFeature());
|
158 | 45647 | fdiaz | } |
159 | |||
160 | @Override
|
||
161 | public void loadFromState(PersistentState state) |
||
162 | throws PersistenceException {
|
||
163 | this.storeRef = new WeakReference(state.get("store")); |
||
164 | this.featureTypeId = state.getString("featureTypeId"); |
||
165 | List pkList = (List) state.get("pk"); |
||
166 | if (pkList != null) { |
||
167 | List pkNamesList = (List) state.get("pkNames"); |
||
168 | if (pkNamesList == null || pkList.size() != pkNamesList.size()) { |
||
169 | throw new PersistenceException("bad pkNames value"); |
||
170 | } |
||
171 | this.pk = pkList.toArray();
|
||
172 | this.pkNames
|
||
173 | = (String[]) pkNamesList.toArray(new String[pkList.size()]); |
||
174 | } else {
|
||
175 | this.pk = null; |
||
176 | this.pkNames = null; |
||
177 | } |
||
178 | |||
179 | } |
||
180 | |||
181 | 45688 | fdiaz | @Override
|
182 | public boolean equals(Object obj) { |
||
183 | if (!(obj instanceof FeatureReferencePK)) { |
||
184 | return false; |
||
185 | } |
||
186 | FeatureReferencePK other = (FeatureReferencePK) obj; |
||
187 | |||
188 | FeatureStore otherStore = (FeatureStore) other.storeRef.get(); |
||
189 | FeatureStore myrStore = (FeatureStore) this.storeRef.get();
|
||
190 | if (otherStore == null || myrStore == null) { |
||
191 | return false; |
||
192 | } |
||
193 | if (!myrStore.equals(otherStore)) {
|
||
194 | return false; |
||
195 | } |
||
196 | |||
197 | if (myHashCode != null && other.myHashCode != null && !myHashCode.equals(other.myHashCode)) { |
||
198 | return false; |
||
199 | } |
||
200 | |||
201 | if (this.pk == other.pk) { |
||
202 | return true; |
||
203 | } |
||
204 | if (this.pk == null || other.pk == null) { |
||
205 | return false; |
||
206 | } |
||
207 | |||
208 | for (int i = 0; i < this.pk.length; i++) { |
||
209 | if (!this.pk[i].equals(other.pk[i])) { |
||
210 | return false; |
||
211 | } |
||
212 | } |
||
213 | return true; |
||
214 | |||
215 | } |
||
216 | |||
217 | @Override
|
||
218 | public int hashCode() { |
||
219 | if (myHashCode == null) { |
||
220 | StringBuilder buff = new StringBuilder(); |
||
221 | |||
222 | for (int i = 0; i < this.pk.length; i++) { |
||
223 | buff.append(Objects.hashCode(this.pk[i]));
|
||
224 | buff.append("##");
|
||
225 | } |
||
226 | myHashCode = buff.toString().hashCode(); |
||
227 | } |
||
228 | return myHashCode;
|
||
229 | } |
||
230 | |||
231 | 46956 | fdiaz | @Override
|
232 | public JsonObjectBuilder toJsonBuilder() {
|
||
233 | JsonObjectBuilder builder = Json.createObjectBuilder(); |
||
234 | builder.add("type", PK_TYPE);
|
||
235 | if (this.pk == null) { |
||
236 | builder.addNull("names");
|
||
237 | builder.addNull("values");
|
||
238 | } else {
|
||
239 | JsonArrayBuilder arrayNames = Json.createArrayBuilder(); |
||
240 | JsonArrayBuilder arrayValues = Json.createArrayBuilder(); |
||
241 | for (int i = 0; i < pk.length; i++) { |
||
242 | arrayNames.add(pkNames[i]); |
||
243 | arrayValues.add(pk[i]); |
||
244 | } |
||
245 | builder.add("names", arrayNames);
|
||
246 | builder.add("values", arrayValues);
|
||
247 | } |
||
248 | return builder;
|
||
249 | } |
||
250 | 46963 | jjdelcerro | |
251 | @Override
|
||
252 | public String toString() { |
||
253 | if( this.pk == null ) { |
||
254 | return "NULL"; |
||
255 | } |
||
256 | boolean needsep = false; |
||
257 | StringBuilder builder = new StringBuilder(); |
||
258 | for (Object v : pk) { |
||
259 | if( needsep ) {
|
||
260 | builder.append("/");
|
||
261 | } |
||
262 | builder.append(Objects.toString(v)); |
||
263 | needsep = true;
|
||
264 | } |
||
265 | return builder.toString();
|
||
266 | } |
||
267 | |||
268 | 45647 | fdiaz | } |