svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.dal / org.gvsig.fmap.dal.db / org.gvsig.fmap.dal.db.jdbc / src / main / java / org / gvsig / fmap / dal / store / jdbc2 / spi / JDBCResourcesStorage.java @ 45065
History | View | Annotate | Download (14.7 KB)
1 | 45065 | jjdelcerro | /**
|
---|---|---|---|
2 | * gvSIG. Desktop Geographic Information System.
|
||
3 | *
|
||
4 | * Copyright (C) 2007-2020 gvSIG Association.
|
||
5 | *
|
||
6 | * This program is free software; you can redistribute it and/or
|
||
7 | * modify it under the terms of the GNU General Public License
|
||
8 | * as published by the Free Software Foundation; either version 3
|
||
9 | * of the License, or (at your option) any later version.
|
||
10 | *
|
||
11 | * This program is distributed in the hope that it will be useful,
|
||
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
14 | * GNU General Public License for more details.
|
||
15 | *
|
||
16 | * You should have received a copy of the GNU General Public License
|
||
17 | * along with this program; if not, write to the Free Software
|
||
18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
|
||
19 | * MA 02110-1301, USA.
|
||
20 | *
|
||
21 | * For any additional information, do not hesitate to contact us
|
||
22 | * at info AT gvsig.com, or visit our website www.gvsig.com.
|
||
23 | */
|
||
24 | 44297 | jjdelcerro | package org.gvsig.fmap.dal.store.jdbc2.spi; |
25 | |||
26 | import java.io.ByteArrayInputStream; |
||
27 | import java.io.ByteArrayOutputStream; |
||
28 | 44750 | jjdelcerro | import java.io.File; |
29 | import java.io.FileInputStream; |
||
30 | import java.io.FileNotFoundException; |
||
31 | import java.io.FileOutputStream; |
||
32 | 44297 | jjdelcerro | import java.io.IOException; |
33 | import java.io.InputStream; |
||
34 | import java.io.OutputStream; |
||
35 | import java.net.URL; |
||
36 | 44750 | jjdelcerro | import java.security.MessageDigest; |
37 | 44297 | jjdelcerro | import java.util.ArrayList; |
38 | import java.util.List; |
||
39 | 44750 | jjdelcerro | import org.apache.commons.codec.digest.DigestUtils; |
40 | import org.apache.commons.io.FileUtils; |
||
41 | 44297 | jjdelcerro | import org.apache.commons.io.IOUtils; |
42 | import org.apache.commons.lang3.StringUtils; |
||
43 | 44750 | jjdelcerro | import org.apache.commons.lang3.tuple.ImmutablePair; |
44 | import org.apache.commons.lang3.tuple.Pair; |
||
45 | 44297 | jjdelcerro | import org.gvsig.expressionevaluator.ExpressionBuilder; |
46 | import org.gvsig.expressionevaluator.ExpressionUtils; |
||
47 | import org.gvsig.fmap.dal.DALLocator; |
||
48 | import org.gvsig.fmap.dal.DataManager; |
||
49 | 44304 | jjdelcerro | import static org.gvsig.fmap.dal.DatabaseWorkspaceManager.FIELD_RESOURCES_NAME; |
50 | import static org.gvsig.fmap.dal.DatabaseWorkspaceManager.FIELD_RESOURCES_RESOURCE; |
||
51 | import static org.gvsig.fmap.dal.DatabaseWorkspaceManager.TABLE_RESOURCES_NAME; |
||
52 | 44297 | jjdelcerro | import org.gvsig.fmap.dal.feature.EditableFeature; |
53 | import org.gvsig.fmap.dal.feature.Feature; |
||
54 | import org.gvsig.fmap.dal.feature.FeatureStore; |
||
55 | import org.gvsig.fmap.dal.store.jdbc.JDBCStoreParameters; |
||
56 | 44750 | jjdelcerro | import org.gvsig.tools.ToolsLocator; |
57 | 44297 | jjdelcerro | import org.gvsig.tools.dispose.DisposeUtils; |
58 | 44750 | jjdelcerro | import org.gvsig.tools.folders.FoldersManager; |
59 | 44297 | jjdelcerro | import org.gvsig.tools.resourcesstorage.AbstractResourcesStorage; |
60 | import org.gvsig.tools.resourcesstorage.ResourcesStorage; |
||
61 | import org.slf4j.Logger; |
||
62 | import org.slf4j.LoggerFactory; |
||
63 | |||
64 | /**
|
||
65 | *
|
||
66 | * @author jjdelcerro
|
||
67 | */
|
||
68 | @SuppressWarnings("UseSpecificCatch") |
||
69 | public class JDBCResourcesStorage extends AbstractResourcesStorage { |
||
70 | |||
71 | private static final Logger LOGGER = LoggerFactory.getLogger(JDBCResourcesStorage.class); |
||
72 | |||
73 | private static class DataBaseResource implements Resource { |
||
74 | |||
75 | private class ResourceInputStream extends InputStream { |
||
76 | |||
77 | @Override
|
||
78 | public int read() throws IOException { |
||
79 | return in.read();
|
||
80 | } |
||
81 | |||
82 | @Override
|
||
83 | public void close() throws IOException { |
||
84 | DataBaseResource.this.close(); |
||
85 | } |
||
86 | } |
||
87 | |||
88 | private class ResourceOutputStream extends OutputStream { |
||
89 | |||
90 | @Override
|
||
91 | public void write(int b) throws IOException { |
||
92 | out.write(b); |
||
93 | } |
||
94 | |||
95 | @Override
|
||
96 | public void flush() throws IOException { |
||
97 | out.flush(); |
||
98 | } |
||
99 | |||
100 | @Override
|
||
101 | public void close() throws IOException { |
||
102 | DataBaseResource.this.close(); |
||
103 | } |
||
104 | } |
||
105 | |||
106 | private final JDBCStoreParameters storeParameters; |
||
107 | private final String tableName; |
||
108 | private final String name; |
||
109 | |||
110 | 44750 | jjdelcerro | private InputStream in; |
111 | 44297 | jjdelcerro | private ByteArrayOutputStream out; |
112 | |||
113 | public DataBaseResource(JDBCStoreParameters storeParameters, String tableName, String name) { |
||
114 | this.storeParameters = storeParameters;
|
||
115 | this.tableName = tableName;
|
||
116 | this.name = name;
|
||
117 | } |
||
118 | |||
119 | 44750 | jjdelcerro | @Override
|
120 | 44698 | jjdelcerro | public String getName() { |
121 | return name;
|
||
122 | } |
||
123 | |||
124 | 44297 | jjdelcerro | @Override
|
125 | public boolean isReadOnly() { |
||
126 | return false; |
||
127 | } |
||
128 | @Override
|
||
129 | public URL getURL() { |
||
130 | try {
|
||
131 | String url = this.storeParameters.getUrl(); |
||
132 | return new URL(url + "&tableName=" + this.tableName + "&resourceName=" + this.name); |
||
133 | } catch (Throwable ex) { |
||
134 | return null; |
||
135 | } |
||
136 | } |
||
137 | |||
138 | @Override
|
||
139 | public boolean exists() { |
||
140 | FeatureStore store = null;
|
||
141 | try {
|
||
142 | 44750 | jjdelcerro | FoldersManager fm = ToolsLocator.getFoldersManager(); |
143 | Pair<String, String> key = this.getCacheID(); |
||
144 | File f = fm.getTemporaryFile("resources-storage","jdbc", key.getLeft(), key.getRight()); |
||
145 | if( f.exists() ) {
|
||
146 | return true; |
||
147 | } |
||
148 | 44297 | jjdelcerro | DataManager dataManager = DALLocator.getDataManager(); |
149 | store = (FeatureStore) dataManager.openStore( |
||
150 | this.storeParameters.getDataStoreName(),
|
||
151 | this.storeParameters
|
||
152 | ); |
||
153 | ExpressionBuilder builder = ExpressionUtils.createExpressionBuilder(); |
||
154 | String filter = builder.eq(
|
||
155 | 44304 | jjdelcerro | builder.column(FIELD_RESOURCES_NAME), |
156 | 44346 | jjdelcerro | builder.constant(this.tableName+"."+this.name) |
157 | 44297 | jjdelcerro | ).toString(); |
158 | Feature feature = store.findFirst(filter); |
||
159 | return feature!=null; |
||
160 | } catch (Throwable ex) { |
||
161 | LOGGER.warn("Can't access to the resoure '" + this.getURL() + "'.", ex); |
||
162 | } finally {
|
||
163 | DisposeUtils.disposeQuietly(store); |
||
164 | } |
||
165 | return false; |
||
166 | } |
||
167 | |||
168 | 44750 | jjdelcerro | private Pair<String,String> getCacheID() { |
169 | byte[] data = this.storeParameters.toByteArray(); |
||
170 | ImmutablePair<String, String> r = new ImmutablePair<>( |
||
171 | DigestUtils.md5Hex(data), |
||
172 | this.tableName+"."+this.name |
||
173 | ); |
||
174 | return r;
|
||
175 | } |
||
176 | |||
177 | private InputStream getInputStreamFromCache() { |
||
178 | FoldersManager fm = ToolsLocator.getFoldersManager(); |
||
179 | Pair<String, String> key = this.getCacheID(); |
||
180 | File f = fm.getTemporaryFile("resources-storage","jdbc", key.getLeft(), key.getRight()); |
||
181 | if( !f.exists() ) {
|
||
182 | InputStream is = null; |
||
183 | FileOutputStream os = null; |
||
184 | try {
|
||
185 | is = this.getInputStream();
|
||
186 | FileUtils.forceMkdir(f.getParentFile()); |
||
187 | os = new FileOutputStream(f); |
||
188 | IOUtils.copy(is, os); |
||
189 | |||
190 | File f2 = fm.getTemporaryFile("resources-storage","jdbc", key.getLeft(), "parameters"); |
||
191 | byte[] data = this.storeParameters.toByteArray(); |
||
192 | os = new FileOutputStream(f2); |
||
193 | IOUtils.write(data, os); |
||
194 | } catch (IOException ex) { |
||
195 | return null; |
||
196 | } finally {
|
||
197 | IOUtils.closeQuietly(is); |
||
198 | IOUtils.closeQuietly(os); |
||
199 | 44297 | jjdelcerro | } |
200 | 44750 | jjdelcerro | } |
201 | InputStream is = null; |
||
202 | try {
|
||
203 | is = new FileInputStream(f); |
||
204 | } catch (FileNotFoundException ex) { |
||
205 | } |
||
206 | return is;
|
||
207 | } |
||
208 | |||
209 | private InputStream getInputStream() throws IOException { |
||
210 | 44297 | jjdelcerro | FeatureStore store = null;
|
211 | try {
|
||
212 | DataManager dataManager = DALLocator.getDataManager(); |
||
213 | store = (FeatureStore) dataManager.openStore( |
||
214 | this.storeParameters.getDataStoreName(),
|
||
215 | this.storeParameters
|
||
216 | ); |
||
217 | ExpressionBuilder builder = ExpressionUtils.createExpressionBuilder(); |
||
218 | String filter = builder.eq(
|
||
219 | 44304 | jjdelcerro | builder.column(FIELD_RESOURCES_NAME), |
220 | 44346 | jjdelcerro | builder.constant(this.tableName+"."+this.name) |
221 | 44297 | jjdelcerro | ).toString(); |
222 | Feature feature = store.findFirst(filter); |
||
223 | if (feature == null) { |
||
224 | return null; |
||
225 | } |
||
226 | 44304 | jjdelcerro | byte[] resource = feature.getByteArray(FIELD_RESOURCES_RESOURCE); |
227 | 44750 | jjdelcerro | InputStream is = new ByteArrayInputStream(resource); |
228 | return is;
|
||
229 | 44297 | jjdelcerro | } catch (Throwable ex) { |
230 | LOGGER.warn("Can't access to the resoure '" + this.getURL() + "'.", ex); |
||
231 | } finally {
|
||
232 | DisposeUtils.disposeQuietly(store); |
||
233 | } |
||
234 | return null; |
||
235 | } |
||
236 | |||
237 | @Override
|
||
238 | 44750 | jjdelcerro | public InputStream asInputStream() throws IOException { |
239 | if (this.in != null || this.out != null) { |
||
240 | throw new IllegalStateException("Resource is already open (" + this.getURL() + ")"); |
||
241 | } |
||
242 | InputStream is = this.getInputStreamFromCache(); |
||
243 | if( is==null ) { |
||
244 | is = this.getInputStream();
|
||
245 | } |
||
246 | this.in = is;
|
||
247 | return new ResourceInputStream(); |
||
248 | } |
||
249 | |||
250 | @Override
|
||
251 | 44297 | jjdelcerro | public OutputStream asOutputStream() throws IOException { |
252 | if (this.in != null || this.out != null) { |
||
253 | throw new IllegalStateException("Resource is already open (" + this.getURL() + ")."); |
||
254 | } |
||
255 | this.out = new ByteArrayOutputStream(); |
||
256 | return new ResourceOutputStream(); |
||
257 | } |
||
258 | |||
259 | @Override
|
||
260 | public void close() { |
||
261 | if (this.in != null) { |
||
262 | IOUtils.closeQuietly(this.in);
|
||
263 | this.in = null; |
||
264 | } |
||
265 | if (this.out != null) { |
||
266 | FeatureStore store = null;
|
||
267 | try {
|
||
268 | DataManager dataManager = DALLocator.getDataManager(); |
||
269 | store = (FeatureStore) dataManager.openStore( |
||
270 | this.storeParameters.getDataStoreName(),
|
||
271 | this.storeParameters
|
||
272 | ); |
||
273 | store.edit(); |
||
274 | ExpressionBuilder builder = ExpressionUtils.createExpressionBuilder(); |
||
275 | String filter = builder.eq(
|
||
276 | 44304 | jjdelcerro | builder.column(FIELD_RESOURCES_NAME), |
277 | 44346 | jjdelcerro | builder.constant(this.tableName+"."+this.name) |
278 | 44297 | jjdelcerro | ).toString(); |
279 | Feature feature = store.findFirst(filter); |
||
280 | EditableFeature efeature; |
||
281 | if (feature == null) { |
||
282 | efeature = store.createNewFeature(); |
||
283 | 44346 | jjdelcerro | efeature.set(FIELD_RESOURCES_NAME, this.tableName+"."+this.name); |
284 | 44304 | jjdelcerro | efeature.set(FIELD_RESOURCES_RESOURCE, this.out.toByteArray());
|
285 | 44297 | jjdelcerro | store.insert(efeature); |
286 | } else {
|
||
287 | efeature = feature.getEditable(); |
||
288 | 44304 | jjdelcerro | efeature.set(FIELD_RESOURCES_RESOURCE, this.out.toByteArray());
|
289 | 44297 | jjdelcerro | store.update(efeature); |
290 | } |
||
291 | store.finishEditing(); |
||
292 | |||
293 | } catch (Throwable ex) { |
||
294 | LOGGER.warn("Can't write the resoure '" + this.getURL() + "'.", ex); |
||
295 | } finally {
|
||
296 | DisposeUtils.disposeQuietly(store); |
||
297 | } |
||
298 | } |
||
299 | } |
||
300 | } |
||
301 | |||
302 | 44346 | jjdelcerro | private final ResourcesStorage alternativeStorge; |
303 | 44297 | jjdelcerro | private final JDBCStoreParameters resourcesStoreParameters; |
304 | private final String tableName; |
||
305 | |||
306 | 44346 | jjdelcerro | public JDBCResourcesStorage(ResourcesStorage alternativeStorge, JDBCStoreParameters resourcesStoreParameters, String tableName) { |
307 | this.alternativeStorge = alternativeStorge;
|
||
308 | 44304 | jjdelcerro | if( StringUtils.equals(TABLE_RESOURCES_NAME, tableName) ) {
|
309 | 44297 | jjdelcerro | // No podemos buscar recursos de la tabla de recursos, ya que si no
|
310 | // al abrise la tabla de recursos entraria en bucle.
|
||
311 | this.resourcesStoreParameters = null; |
||
312 | } else {
|
||
313 | this.resourcesStoreParameters = resourcesStoreParameters;
|
||
314 | } |
||
315 | this.tableName = tableName;
|
||
316 | } |
||
317 | |||
318 | @Override
|
||
319 | public boolean isEmpty() { |
||
320 | return this.resourcesStoreParameters == null; |
||
321 | } |
||
322 | |||
323 | @Override
|
||
324 | public Resource getResource(String name) { |
||
325 | 44346 | jjdelcerro | if( this.alternativeStorge!=null ) { |
326 | Resource r = this.alternativeStorge.getResource(name);
|
||
327 | if( r.exists() ) {
|
||
328 | return r;
|
||
329 | } |
||
330 | } |
||
331 | 44297 | jjdelcerro | if (this.resourcesStoreParameters == null) { |
332 | return null; |
||
333 | } |
||
334 | return new DataBaseResource( |
||
335 | this.resourcesStoreParameters,
|
||
336 | this.tableName,
|
||
337 | name |
||
338 | ); |
||
339 | } |
||
340 | |||
341 | @Override
|
||
342 | public List<Resource> getResources(String name) { |
||
343 | if (this.resourcesStoreParameters == null) { |
||
344 | return null; |
||
345 | } |
||
346 | 44346 | jjdelcerro | if( this.alternativeStorge!=null ) { |
347 | List<Resource> r = this.alternativeStorge.getResources(name); |
||
348 | if( r!=null && !r.isEmpty() ) { |
||
349 | return r;
|
||
350 | } |
||
351 | } |
||
352 | 44297 | jjdelcerro | FeatureStore store = null;
|
353 | try {
|
||
354 | DataManager dataManager = DALLocator.getDataManager(); |
||
355 | store = (FeatureStore) dataManager.openStore( |
||
356 | this.resourcesStoreParameters.getDataStoreName(),
|
||
357 | this.resourcesStoreParameters
|
||
358 | ); |
||
359 | ExpressionBuilder builder = ExpressionUtils.createExpressionBuilder(); |
||
360 | List<ResourcesStorage.Resource> ress = new ArrayList<>(); |
||
361 | int n = 0; |
||
362 | while (true) { |
||
363 | String multiresourceName;
|
||
364 | if (n == 0) { |
||
365 | multiresourceName = name; |
||
366 | } else {
|
||
367 | 44346 | jjdelcerro | multiresourceName = String.valueOf(n) + "." + name ; |
368 | 44297 | jjdelcerro | } |
369 | String filter = builder.eq(
|
||
370 | 44304 | jjdelcerro | builder.column(FIELD_RESOURCES_NAME), |
371 | 44346 | jjdelcerro | builder.constant(this.tableName+"."+multiresourceName) |
372 | 44297 | jjdelcerro | ).toString(); |
373 | Feature feature = store.findFirst(filter); |
||
374 | if( feature==null ) { |
||
375 | break;
|
||
376 | } |
||
377 | ress.add(new DataBaseResource(
|
||
378 | this.resourcesStoreParameters,
|
||
379 | this.tableName,
|
||
380 | multiresourceName |
||
381 | ) |
||
382 | ); |
||
383 | n++; |
||
384 | } |
||
385 | if (ress.isEmpty()) {
|
||
386 | return null; |
||
387 | } |
||
388 | return ress;
|
||
389 | } catch (Throwable ex) { |
||
390 | LOGGER.warn("Can't get resources for '" + this.resourcesStoreParameters.getUrl()+"&resourceName="+name + "'.", ex); |
||
391 | return null; |
||
392 | |||
393 | } finally {
|
||
394 | DisposeUtils.disposeQuietly(store); |
||
395 | } |
||
396 | |||
397 | } |
||
398 | |||
399 | } |