Revision 44262 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/impl/expressionevaluator/DefaultFeatureSymbolTable.java
| DefaultFeatureSymbolTable.java | ||
|---|---|---|
| 1 | 1 |
package org.gvsig.fmap.dal.impl.expressionevaluator; |
| 2 | 2 |
|
| 3 |
import java.util.ArrayList; |
|
| 4 |
import java.util.Arrays; |
|
| 5 |
import java.util.List; |
|
| 3 | 6 |
import org.apache.commons.lang3.Range; |
| 4 | 7 |
import org.gvsig.expressionevaluator.ExpressionBuilder; |
| 5 | 8 |
import org.gvsig.expressionevaluator.ExpressionEvaluatorLocator; |
| ... | ... | |
| 12 | 15 |
import org.gvsig.expressionevaluator.spi.AbstractSymbolTable; |
| 13 | 16 |
import org.gvsig.fmap.dal.DALLocator; |
| 14 | 17 |
import org.gvsig.fmap.dal.DataManager; |
| 18 |
import static org.gvsig.fmap.dal.DataManager.FUNCTION_FOREING_VALUE; |
|
| 15 | 19 |
import org.gvsig.fmap.dal.DataStore; |
| 16 | 20 |
import org.gvsig.fmap.dal.StoresRepository; |
| 17 | 21 |
import org.gvsig.fmap.dal.expressionevaluator.FeatureSymbolTable; |
| ... | ... | |
| 20 | 24 |
import org.gvsig.fmap.dal.feature.FeatureSelection; |
| 21 | 25 |
import org.gvsig.fmap.dal.feature.FeatureStore; |
| 22 | 26 |
import org.gvsig.fmap.dal.feature.FeatureType; |
| 27 |
import org.gvsig.fmap.dal.feature.ForeingKey; |
|
| 28 |
import org.gvsig.fmap.dal.feature.ForeingKey.ContextForeingKey; |
|
| 23 | 29 |
import static org.gvsig.fmap.dal.impl.expressionevaluator.DALSymbolTable.FUNCTION_FEATURES; |
| 24 | 30 |
import org.gvsig.fmap.dal.impl.expressionevaluator.DALSymbolTable.FeaturesFunction; |
| 31 |
import org.gvsig.tools.ToolsLocator; |
|
| 32 |
import org.gvsig.tools.dispose.DisposeUtils; |
|
| 33 |
import org.gvsig.tools.dynobject.Tagged; |
|
| 25 | 34 |
import org.gvsig.tools.dynobject.Tags; |
| 26 | 35 |
import org.gvsig.tools.script.Script; |
| 27 | 36 |
import org.gvsig.tools.util.UnmodifiableBasicList; |
| 37 |
import org.gvsig.tools.util.UnmodifiableBasicListAdapter; |
|
| 28 | 38 |
|
| 29 | 39 |
/** |
| 30 | 40 |
* |
| ... | ... | |
| 33 | 43 |
@SuppressWarnings("UseSpecificCatch")
|
| 34 | 44 |
public class DefaultFeatureSymbolTable extends AbstractSymbolTable implements FeatureSymbolTable {
|
| 35 | 45 |
|
| 36 |
public static final String FUNCTION_FOREING_VALUE = "FOREING_VALUE"; |
|
| 37 |
|
|
| 38 | 46 |
public class ForeingValueFunction extends AbstractFunction {
|
| 39 | 47 |
|
| 40 | 48 |
public ForeingValueFunction() {
|
| ... | ... | |
| 45 | 53 |
"Return the value of a field throw a relation from other tables.", |
| 46 | 54 |
FUNCTION_FOREING_VALUE + "({{field_name}})",
|
| 47 | 55 |
new String[]{
|
| 48 |
"fieldName - dot separated field path" |
|
| 56 |
"fieldName - dot separated field path or list of strings with field names."
|
|
| 49 | 57 |
}, |
| 50 | 58 |
"OBJECT" |
| 51 | 59 |
); |
| ... | ... | |
| 54 | 62 |
@Override |
| 55 | 63 |
public Object call(Interpreter interpreter, Object[] args) throws Exception {
|
| 56 | 64 |
ExpressionBuilder builder = ExpressionUtils.createExpressionBuilder(); |
| 57 |
String fullFieldName = getStr(args, 0); |
|
| 58 |
String[] nameParts = fullFieldName.split("[.]");
|
|
| 65 |
UnmodifiableBasicList<String> fieldNames; |
|
| 66 |
Object fields_o = getObject(args, 0); |
|
| 67 |
if( fields_o instanceof List ) {
|
|
| 68 |
fieldNames = new UnmodifiableBasicListAdapter<>((List<String>) fields_o); |
|
| 69 |
} else if( fields_o instanceof String ) {
|
|
| 70 |
fieldNames = new UnmodifiableBasicListAdapter<>(Arrays.asList(((String)fields_o).split("[.]")));
|
|
| 71 |
} else if( fields_o instanceof UnmodifiableBasicList ) {
|
|
| 72 |
fieldNames = (UnmodifiableBasicList<String>) fields_o; |
|
| 73 |
} else {
|
|
| 74 |
throw new ExpressionRuntimeException( |
|
| 75 |
"Problems calling '" + FUNCTION_FEATURES + |
|
| 76 |
"' function, type of parameter '"+fields_o.getClass().getSimpleName()+ |
|
| 77 |
"' not supported, use string or list."); |
|
| 78 |
} |
|
| 59 | 79 |
Feature currentFeature = feature; |
| 60 | 80 |
try {
|
| 61 |
String namePart;
|
|
| 81 |
String fieldName;
|
|
| 62 | 82 |
Object value; |
| 63 |
for (int i = 0; i < nameParts.length-1; i++) {
|
|
| 64 |
namePart = nameParts[i];
|
|
| 65 |
value = currentFeature.get(namePart);
|
|
| 83 |
for (int i = 0; i < fieldNames.size()-1; i++) {
|
|
| 84 |
fieldName = fieldNames.get(i);
|
|
| 85 |
value = currentFeature.get(fieldName);
|
|
| 66 | 86 |
|
| 67 |
FeatureAttributeDescriptor attrdesc = currentFeature.getType().getAttributeDescriptor(namePart); |
|
| 68 |
Tags tags = attrdesc.getTags(); |
|
| 69 |
String storeName = tags.getString(DataManager.DAL_FOREING_TABLE, null); |
|
| 70 |
String attrName = tags.getString(DataManager.DAL_FOREING_CODE, null); |
|
| 71 |
|
|
| 72 |
StoresRepository repository = currentFeature.getStore().getStoresRepository(); |
|
| 73 |
FeatureStore store = (FeatureStore) repository.get(storeName); |
|
| 74 |
currentFeature = store.findFirst( |
|
| 75 |
builder.eq( |
|
| 76 |
builder.constant(value), |
|
| 77 |
builder.variable(attrName) |
|
| 78 |
).toString() |
|
| 79 |
); |
|
| 87 |
FeatureAttributeDescriptor attrdesc = currentFeature.getType().getAttributeDescriptor(fieldName); |
|
| 88 |
ForeingKey foreingKey = attrdesc.getForeingKey(); |
|
| 89 |
// ContextForeingKey context = foreingKey.createContext(); |
|
| 90 |
currentFeature = foreingKey.getFeature(null, value); |
|
| 91 |
// DisposeUtils.disposeQuietly(context); |
|
| 80 | 92 |
if( currentFeature==null ) {
|
| 81 | 93 |
return null; |
| 82 | 94 |
} |
| 83 | 95 |
} |
| 84 |
namePart = nameParts[nameParts.length-1];
|
|
| 85 |
value = currentFeature.get(namePart);
|
|
| 96 |
fieldName = fieldNames.get(fieldNames.size()-1);
|
|
| 97 |
value = currentFeature.get(fieldName);
|
|
| 86 | 98 |
return value; |
| 87 | 99 |
} catch (ExpressionRuntimeException ex) {
|
| 88 | 100 |
throw ex; |
| ... | ... | |
| 196 | 208 |
|
| 197 | 209 |
@SuppressWarnings("OverridableMethodCallInConstructor")
|
| 198 | 210 |
public DefaultFeatureSymbolTable() {
|
| 199 |
super(DataManager.FEATURE_SYMBOL_TABLE);
|
|
| 211 |
super(DataManager.DAL_SYMBOL_TABLE_FEATURE);
|
|
| 200 | 212 |
|
| 201 | 213 |
this.addFunction(new FeatureFunction()); |
| 202 | 214 |
this.addFunction(new FeatureStoreFunction()); |
Also available in: Unified diff