svn-gvsig-desktop / branches / v2_0_0_prep / libraries / libFMap_dataFile / src / org / gvsig / fmap / data / feature / file / dbf / DBFStore.java @ 23534
History | View | Annotate | Download (9.84 KB)
| 1 |
package org.gvsig.fmap.data.feature.file.dbf; |
|---|---|
| 2 |
|
| 3 |
import java.lang.ref.WeakReference; |
| 4 |
import java.security.KeyException; |
| 5 |
import java.util.ArrayList; |
| 6 |
import java.util.Collection; |
| 7 |
import java.util.Iterator; |
| 8 |
|
| 9 |
import org.gvsig.fmap.data.CloseException; |
| 10 |
import org.gvsig.fmap.data.DataCollection; |
| 11 |
import org.gvsig.fmap.data.DataException; |
| 12 |
import org.gvsig.fmap.data.DataExplorer; |
| 13 |
import org.gvsig.fmap.data.DataExplorerParameters; |
| 14 |
import org.gvsig.fmap.data.DataManager; |
| 15 |
import org.gvsig.fmap.data.DataStoreParameters; |
| 16 |
import org.gvsig.fmap.data.InitializeException; |
| 17 |
import org.gvsig.fmap.data.OpenException; |
| 18 |
import org.gvsig.fmap.data.ReadException; |
| 19 |
import org.gvsig.fmap.data.ResourceManager; |
| 20 |
import org.gvsig.fmap.data.WriteException; |
| 21 |
import org.gvsig.fmap.data.feature.AttributeDescriptor; |
| 22 |
import org.gvsig.fmap.data.feature.DefaultFeatureType; |
| 23 |
import org.gvsig.fmap.data.feature.Feature; |
| 24 |
import org.gvsig.fmap.data.feature.FeatureAttributeDescriptor; |
| 25 |
import org.gvsig.fmap.data.feature.FeatureCollection; |
| 26 |
import org.gvsig.fmap.data.feature.FeatureID; |
| 27 |
import org.gvsig.fmap.data.feature.FeatureType; |
| 28 |
import org.gvsig.fmap.data.feature.FeaturesWriter; |
| 29 |
import org.gvsig.fmap.data.feature.InitializeWriterException; |
| 30 |
import org.gvsig.fmap.data.feature.IsNotAttributeSettingException; |
| 31 |
import org.gvsig.fmap.data.feature.file.FileExplorerParameters; |
| 32 |
import org.gvsig.fmap.data.feature.file.FileStore; |
| 33 |
import org.gvsig.metadata.IMetadata; |
| 34 |
import org.gvsig.metadata.IMetadataManager; |
| 35 |
import org.gvsig.metadata.MetadataManager; |
| 36 |
import org.gvsig.tools.exception.BaseException; |
| 37 |
|
| 38 |
public class DBFStore extends FileStore { |
| 39 |
public static String DATASTORE_NAME = "DBFStore"; |
| 40 |
private DBFResource dbf= null; |
| 41 |
protected IMetadata metadata;
|
| 42 |
private DBFStoreParameters dbfParameters=null; |
| 43 |
|
| 44 |
|
| 45 |
public void init(DataStoreParameters parameters) throws InitializeException { |
| 46 |
dbfParameters=(DBFStoreParameters)parameters; |
| 47 |
DBFResource tmpResource = new DBFResource(dbfParameters);
|
| 48 |
|
| 49 |
ResourceManager resMan = ResourceManager.getResourceManager(); |
| 50 |
|
| 51 |
try {
|
| 52 |
this.dbf = (DBFResource) resMan.addResource(tmpResource, this); |
| 53 |
} catch (DataException e1) {
|
| 54 |
throw new InitializeException(this.getName(),e1); |
| 55 |
} |
| 56 |
|
| 57 |
super.init(parameters,this.dbf); |
| 58 |
|
| 59 |
// this.dbf.open();
|
| 60 |
// this.dbf.addObserver(this);
|
| 61 |
this.initFeatureType();
|
| 62 |
} |
| 63 |
|
| 64 |
private void initFeatureType() throws InitializeException{ |
| 65 |
int fieldCount = -1; |
| 66 |
try {
|
| 67 |
fieldCount = dbf.getFieldCount(); |
| 68 |
} catch (DataException e) {
|
| 69 |
throw new InitializeException(this.getName(), e); |
| 70 |
} |
| 71 |
|
| 72 |
defaultFeatureType = new DefaultFeatureType();
|
| 73 |
for (int i = 0; i < fieldCount; i++) { |
| 74 |
FeatureAttributeDescriptor fad; |
| 75 |
try {
|
| 76 |
fad = createFeatureAttribute( |
| 77 |
(DefaultFeatureType) defaultFeatureType, i); |
| 78 |
} catch (IsNotAttributeSettingException e) {
|
| 79 |
throw new InitializeException(this.getName(), e); |
| 80 |
} catch (ReadException e) {
|
| 81 |
// TODO Auto-generated catch block
|
| 82 |
throw new InitializeException(this.getName(), e); |
| 83 |
} |
| 84 |
defaultFeatureType.add(fad); |
| 85 |
} |
| 86 |
|
| 87 |
this.featureTypes = new ArrayList(); |
| 88 |
this.featureTypes.add(defaultFeatureType);
|
| 89 |
|
| 90 |
} |
| 91 |
|
| 92 |
|
| 93 |
private FeatureAttributeDescriptor createFeatureAttribute(DefaultFeatureType fType, int i) throws ReadException, IsNotAttributeSettingException { |
| 94 |
char fieldType = dbf.getFieldType(i);
|
| 95 |
AttributeDescriptor dad=(AttributeDescriptor) fType.createAttributeDescriptor(); |
| 96 |
dad.loading(); |
| 97 |
dad.setName(dbf.getFieldName(i)); |
| 98 |
dad.setSize(dbf.getFieldLength(i)); |
| 99 |
if (fieldType == 'L') { |
| 100 |
dad.setType(FeatureAttributeDescriptor.TYPE_BOOLEAN); |
| 101 |
|
| 102 |
} else if ((fieldType == 'F') || (fieldType == 'N')) { |
| 103 |
int precision = dbf.getFieldDecimalLength(i);
|
| 104 |
if (precision > 0){ |
| 105 |
dad.setType(FeatureAttributeDescriptor.TYPE_DOUBLE); |
| 106 |
dad.setPrecision(precision); |
| 107 |
} else{
|
| 108 |
dad.setType(FeatureAttributeDescriptor.TYPE_INT); |
| 109 |
} |
| 110 |
} else if (fieldType == 'C') { |
| 111 |
dad.setType(FeatureAttributeDescriptor.TYPE_STRING); |
| 112 |
} else if (fieldType == 'D') { |
| 113 |
dad.setType(FeatureAttributeDescriptor.TYPE_DATE); |
| 114 |
} else {
|
| 115 |
// throw new BadFieldDriverException(getName(),null,String.valueOf(fieldType));
|
| 116 |
} |
| 117 |
dad.stopLoading(); |
| 118 |
return dad;
|
| 119 |
|
| 120 |
} |
| 121 |
|
| 122 |
protected void doFinishEdition() throws WriteException, ReadException { |
| 123 |
FeaturesWriter writer = getFeaturesWriter(); |
| 124 |
writer.init(this);
|
| 125 |
writer.updateFeatureType(this.getDefaultFeatureType());
|
| 126 |
this.dbf.editing();
|
| 127 |
writer.preProcess(); |
| 128 |
Collection collection=getDataCollection();
|
| 129 |
Iterator iterator=collection.iterator();
|
| 130 |
Feature feature; |
| 131 |
while (iterator.hasNext()) {
|
| 132 |
feature= (Feature) iterator.next(); |
| 133 |
writer.insertFeature(feature); |
| 134 |
} |
| 135 |
writer.postProcess(); |
| 136 |
this.dbf.stopEditing();
|
| 137 |
|
| 138 |
this.dbf.changed(this); |
| 139 |
} |
| 140 |
|
| 141 |
public DataCollection getDataCollection(FeatureType type, String filter, String order) throws ReadException { |
| 142 |
try {
|
| 143 |
type = this.checkFeatureTypeForCollection(type);
|
| 144 |
} catch (DataException e) {
|
| 145 |
throw new ReadException(this.getName(), e); |
| 146 |
} |
| 147 |
|
| 148 |
FeatureCollection coll; |
| 149 |
if (order == null){ |
| 150 |
if (featureManager==null){ |
| 151 |
coll=new DBFFeatureCollectionBitSet(this,type,filter); |
| 152 |
}else{
|
| 153 |
coll=new DBFFeatureCollection(featureManager,this,type,filter); |
| 154 |
} |
| 155 |
}else{
|
| 156 |
coll=new DBFFeatureCollectionWithFeatureID(featureManager,this,type,filter,order); |
| 157 |
} |
| 158 |
|
| 159 |
this.addObserver(new WeakReference(coll)); |
| 160 |
return coll;
|
| 161 |
|
| 162 |
} |
| 163 |
|
| 164 |
public Feature getFeatureByID(FeatureID id, FeatureType featureType)
|
| 165 |
throws ReadException {
|
| 166 |
if (featureType == null){ |
| 167 |
featureType=this.getDefaultFeatureType();
|
| 168 |
} else{
|
| 169 |
if (!featureType.isSubtypeOf(this.getDefaultFeatureType())){ |
| 170 |
throw new ReadException("invalid type",this.getName()); |
| 171 |
} |
| 172 |
} |
| 173 |
if (this.alterMode){ |
| 174 |
if (featureManager.contains(id)) {
|
| 175 |
return featureManager.getFeature(id,this,featureType); |
| 176 |
} |
| 177 |
} |
| 178 |
return this.getFeatureByIndex(((DBFFeatureID) id).getIndex(), |
| 179 |
featureType); |
| 180 |
} |
| 181 |
|
| 182 |
/**
|
| 183 |
*
|
| 184 |
* Only for persistenced features
|
| 185 |
*
|
| 186 |
* @param index
|
| 187 |
* @param featureType
|
| 188 |
* @return
|
| 189 |
* @throws ReadException
|
| 190 |
*/
|
| 191 |
protected Feature getFeatureByIndex(long index, FeatureType featureType) |
| 192 |
throws ReadException {
|
| 193 |
if (index >= this.getFeatureCount()) { |
| 194 |
throw new ReadException(this.getName(), |
| 195 |
"Unsupported operation for not persistented features");
|
| 196 |
} |
| 197 |
DBFFeature feature = new DBFFeature(featureType, this, index); |
| 198 |
return feature;
|
| 199 |
} |
| 200 |
|
| 201 |
/***
|
| 202 |
* NOT supported in Alter Mode
|
| 203 |
*
|
| 204 |
* @param index
|
| 205 |
* @return
|
| 206 |
* @throws ReadException
|
| 207 |
*/
|
| 208 |
protected Feature getFeatureByIndex(long index) throws ReadException { |
| 209 |
return this.getFeatureByIndex(index, this.getDefaultFeatureType()); |
| 210 |
} |
| 211 |
|
| 212 |
public boolean canAlterFeatureType() { |
| 213 |
return true; |
| 214 |
} |
| 215 |
|
| 216 |
public String getName() { |
| 217 |
return DATASTORE_NAME;
|
| 218 |
} |
| 219 |
|
| 220 |
protected void doOpen() throws OpenException { |
| 221 |
//No hace nada
|
| 222 |
|
| 223 |
} |
| 224 |
|
| 225 |
protected void doClose() throws CloseException { |
| 226 |
try {
|
| 227 |
dbf.close(); |
| 228 |
} catch (DataException e) {
|
| 229 |
throw new CloseException(this.getName(),e); |
| 230 |
} |
| 231 |
|
| 232 |
} |
| 233 |
|
| 234 |
protected void doDispose() throws CloseException { |
| 235 |
super.doDispose();
|
| 236 |
ResourceManager resMan = ResourceManager.getResourceManager(); |
| 237 |
|
| 238 |
try {
|
| 239 |
resMan.remove(this.dbf, this); |
| 240 |
} catch (DataException e1) {
|
| 241 |
throw new CloseException(this.getName(),e1); |
| 242 |
} catch (KeyException e) { |
| 243 |
// TODO Auto-generated catch block
|
| 244 |
throw new CloseException(this.getName(),e); |
| 245 |
} |
| 246 |
|
| 247 |
this.dbf = null; |
| 248 |
this.metadata=null; |
| 249 |
} |
| 250 |
|
| 251 |
public boolean isEditable() { |
| 252 |
return this.dbf.isEditable(); |
| 253 |
} |
| 254 |
|
| 255 |
public IMetadata getMetadata() throws BaseException { |
| 256 |
if (metadata==null){ |
| 257 |
IMetadataManager manager=MetadataManager.getManager(); |
| 258 |
metadata=manager.create(DATASTORE_NAME); |
| 259 |
} |
| 260 |
return metadata;
|
| 261 |
} |
| 262 |
|
| 263 |
// protected Feature getFeatureByPosition(FeatureType ft,long position) throws ReadException {
|
| 264 |
//// Field Type (C or M)
|
| 265 |
//// char cfieldType = fieldTypes[fieldId];
|
| 266 |
//// int fieldType = getFieldType(fieldId);
|
| 267 |
// DBFFeature feature=new DBFFeature(ft,this,position);
|
| 268 |
// feature.load(this.dbf);
|
| 269 |
// return feature;
|
| 270 |
// }
|
| 271 |
|
| 272 |
protected FeaturesWriter getFeaturesWriter() throws InitializeWriterException{ |
| 273 |
FeaturesWriter writer = new DBFFeaturesWriter();
|
| 274 |
// writer.init(this);
|
| 275 |
return writer;
|
| 276 |
} |
| 277 |
|
| 278 |
protected long getFeatureCount() throws ReadException{ |
| 279 |
return dbf.getRecordCount();
|
| 280 |
} |
| 281 |
|
| 282 |
|
| 283 |
public DataStoreParameters getParameters() {
|
| 284 |
return parameters;
|
| 285 |
} |
| 286 |
|
| 287 |
|
| 288 |
public DataExplorer getExplorer() throws InitializeException { |
| 289 |
DataManager dsm=DataManager.getManager(); |
| 290 |
DataExplorerParameters dsp = dsm.createDataExplorerParameters( |
| 291 |
DBFDataExplorer.DATASOURCE_NAME); |
| 292 |
((FileExplorerParameters)dsp).setSource(dbfParameters.getFile().getParentFile()); |
| 293 |
|
| 294 |
DataExplorer src=null;
|
| 295 |
try {
|
| 296 |
src = dsm.createDataExplorer(dsp); |
| 297 |
} catch (InitializeException e1) {
|
| 298 |
e1.printStackTrace(); |
| 299 |
} |
| 300 |
return src;
|
| 301 |
} |
| 302 |
|
| 303 |
/* (non-Javadoc)
|
| 304 |
* @see org.gvsig.fmap.data.feature.FeatureStore#doRefresh()
|
| 305 |
*/
|
| 306 |
protected void doRefresh() throws OpenException, InitializeException { |
| 307 |
this.initFeatureType();
|
| 308 |
} |
| 309 |
|
| 310 |
/**
|
| 311 |
* @param i
|
| 312 |
* @param i2
|
| 313 |
* @return
|
| 314 |
* @throws ReadException
|
| 315 |
*/
|
| 316 |
protected String getStringFieldValue(int rowIndex, int fieldId) throws ReadException { |
| 317 |
return this.dbf.getStringFieldValue(rowIndex, fieldId); |
| 318 |
} |
| 319 |
public boolean canWriteGeometry(int gvSIGgeometryType) { |
| 320 |
try {
|
| 321 |
return getFeaturesWriter().canWriteGeometry(gvSIGgeometryType);
|
| 322 |
} catch (InitializeWriterException e) {
|
| 323 |
e.printStackTrace(); |
| 324 |
} |
| 325 |
return false; |
| 326 |
} |
| 327 |
|
| 328 |
public String getClassName() { |
| 329 |
// TODO Auto-generated method stub
|
| 330 |
return null; |
| 331 |
} |
| 332 |
} |