root / branches / v2_0_0_prep / libraries / libFMap_dataFile / src / org / gvsig / fmap / data / feature / file / dbf / DBFStore.java @ 23303
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package org.gvsig.fmap.data.feature.file.dbf; |
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import java.lang.ref.WeakReference; |
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import java.security.KeyException; |
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import java.util.ArrayList; |
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import java.util.Collection; |
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import java.util.Iterator; |
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import java.util.List; |
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import org.gvsig.fmap.data.CloseException; |
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import org.gvsig.fmap.data.DataCollection; |
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import org.gvsig.fmap.data.DataException; |
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import org.gvsig.fmap.data.DataExplorer; |
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import org.gvsig.fmap.data.DataExplorerParameters; |
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import org.gvsig.fmap.data.DataManager; |
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import org.gvsig.fmap.data.DataStoreParameters; |
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import org.gvsig.fmap.data.InitializeException; |
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import org.gvsig.fmap.data.OpenException; |
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import org.gvsig.fmap.data.ReadException; |
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import org.gvsig.fmap.data.ResourceManager; |
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import org.gvsig.fmap.data.WriteException; |
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import org.gvsig.fmap.data.feature.AttributeDescriptor; |
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import org.gvsig.fmap.data.feature.DefaultFeatureType; |
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import org.gvsig.fmap.data.feature.Feature; |
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import org.gvsig.fmap.data.feature.FeatureAttributeDescriptor; |
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import org.gvsig.fmap.data.feature.FeatureCollection; |
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import org.gvsig.fmap.data.feature.FeatureID; |
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import org.gvsig.fmap.data.feature.FeatureType; |
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import org.gvsig.fmap.data.feature.FeaturesWriter; |
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import org.gvsig.fmap.data.feature.InitializeWriterException; |
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import org.gvsig.fmap.data.feature.IsNotAttributeSettingException; |
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import org.gvsig.fmap.data.feature.file.FileExplorerParameters; |
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import org.gvsig.fmap.data.feature.file.FileStore; |
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import org.gvsig.metadata.IMetadata; |
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import org.gvsig.metadata.IMetadataManager; |
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import org.gvsig.metadata.MetadataManager; |
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import org.gvsig.tools.exception.BaseException; |
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public class DBFStore extends FileStore { |
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public static String DATASTORE_NAME = "DBFStore"; |
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private DBFResource dbf= null; |
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protected List featureTypes = new ArrayList();//<FeatureType> |
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protected IMetadata metadata;
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private DBFStoreParameters dbfParameters=null; |
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public void init(DataStoreParameters parameters) throws InitializeException { |
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dbfParameters=(DBFStoreParameters)parameters; |
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DBFResource tmpResource = new DBFResource(dbfParameters);
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ResourceManager resMan = ResourceManager.getResourceManager(); |
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try {
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this.dbf = (DBFResource)resMan.addResource(tmpResource);
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} catch (DataException e1) {
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throw new InitializeException(this.getName(),e1); |
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} |
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super.init(parameters,this.dbf); |
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// this.dbf.open();
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// this.dbf.addObserver(this);
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this.initFeatureType();
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} |
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private void initFeatureType() throws InitializeException{ |
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int fieldCount = -1; |
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try{
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fieldCount =dbf.getFieldCount(); |
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} catch (DataException e) {
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throw new InitializeException(this.getName(),e); |
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} |
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defaultFeatureType=new DefaultFeatureType();
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for (int i = 0; i < fieldCount; i++) { |
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FeatureAttributeDescriptor fad; |
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try {
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fad = createFeatureAttribute((DefaultFeatureType)defaultFeatureType, i); |
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} catch (IsNotAttributeSettingException e) {
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throw new InitializeException(this.getName(),e); |
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} catch (ReadException e) {
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// TODO Auto-generated catch block
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throw new InitializeException(this.getName(),e); |
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} |
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defaultFeatureType.add(fad); |
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} |
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} |
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private FeatureAttributeDescriptor createFeatureAttribute(DefaultFeatureType fType, int i) throws ReadException, IsNotAttributeSettingException { |
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char fieldType = dbf.getFieldType(i);
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AttributeDescriptor dad=(AttributeDescriptor) fType.createAttributeDescriptor(); |
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dad.loading(); |
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dad.setName(dbf.getFieldName(i)); |
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dad.setSize(dbf.getFieldLength(i)); |
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if (fieldType == 'L') { |
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dad.setType(FeatureAttributeDescriptor.TYPE_BOOLEAN); |
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} else if ((fieldType == 'F') || (fieldType == 'N')) { |
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int precision = dbf.getFieldDecimalLength(i);
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if (precision > 0){ |
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dad.setType(FeatureAttributeDescriptor.TYPE_DOUBLE); |
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dad.setPrecision(precision); |
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} else{
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dad.setType(FeatureAttributeDescriptor.TYPE_INT); |
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} |
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} else if (fieldType == 'C') { |
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dad.setType(FeatureAttributeDescriptor.TYPE_STRING); |
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} else if (fieldType == 'D') { |
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dad.setType(FeatureAttributeDescriptor.TYPE_DATE); |
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} else {
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// throw new BadFieldDriverException(getName(),null,String.valueOf(fieldType));
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} |
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dad.stopLoading(); |
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return dad;
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} |
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protected void doFinishEdition() throws WriteException, ReadException { |
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FeaturesWriter writer = getFeaturesWriter(); |
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writer.init(this);
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writer.updateFeatureType(this.getDefaultFeatureType());
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this.dbf.editing();
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writer.preProcess(); |
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Collection collection=getDataCollection();
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Iterator iterator=collection.iterator();
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Feature feature; |
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while (iterator.hasNext()) {
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feature= (Feature) iterator.next(); |
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writer.insertFeature(feature); |
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} |
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writer.postProcess(); |
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this.dbf.stopEditing();
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this.dbf.changed(this); |
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} |
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public DataCollection getDataCollection(FeatureType type, String filter, String order) throws ReadException { |
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try {
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type = this.checkFeatureTypeForCollection(type);
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} catch (DataException e) {
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throw new ReadException(this.getName(), e); |
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} |
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FeatureCollection coll; |
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if (order == null){ |
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if (featureManager==null){ |
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coll=new DBFFeatureCollectionBitSet(this,type,filter); |
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}else{
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coll=new DBFFeatureCollection(featureManager,this,type,filter); |
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} |
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}else{
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coll=new DBFFeatureCollectionWithFeatureID(featureManager,this,type,filter,order); |
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} |
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this.addObserver(new WeakReference(coll)); |
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return coll;
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} |
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public Feature getFeatureByID(FeatureID id, FeatureType featureType)
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throws ReadException {
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if (featureType == null){ |
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featureType=this.getDefaultFeatureType();
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} else{
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if (!featureType.isSubtypeOf(this.getDefaultFeatureType())){ |
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throw new ReadException("invalid type",this.getName()); |
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} |
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} |
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if (this.alterMode){ |
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if (featureManager.contains(id)) {
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return featureManager.getFeature(id,this,featureType); |
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} |
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} |
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return this.getFeatureByIndex(((DBFFeatureID) id).getIndex(), |
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featureType); |
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} |
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/**
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*
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* Only for persistenced features
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*
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* @param index
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* @param featureType
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* @return
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* @throws ReadException
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*/
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protected Feature getFeatureByIndex(long index, FeatureType featureType) |
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throws ReadException {
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if (index >= this.getFeatureCount()) { |
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throw new ReadException(this.getName(), |
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"Unsupported operation for not persistented features");
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} |
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DBFFeature feature = new DBFFeature(featureType, this, index); |
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return feature;
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} |
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/***
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* NOT supported in Alter Mode
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*
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* @param index
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* @return
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* @throws ReadException
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*/
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protected Feature getFeatureByIndex(long index) throws ReadException { |
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return this.getFeatureByIndex(index, this.getDefaultFeatureType()); |
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} |
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public List getFeatureTypes() { |
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featureTypes.add(0,getDefaultFeatureType());
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return featureTypes;
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} |
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public boolean canAlterFeatureType() { |
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return true; |
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} |
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public String getName() { |
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return DATASTORE_NAME;
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} |
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protected void doOpen() throws OpenException { |
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//No hace nada
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} |
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protected void doClose() throws CloseException { |
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try {
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dbf.close(); |
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} catch (DataException e) {
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throw new CloseException(this.getName(),e); |
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} |
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} |
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protected void doDispose() throws CloseException { |
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super.doDispose();
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ResourceManager resMan = ResourceManager.getResourceManager(); |
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try {
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resMan.remove(this.dbf);
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} catch (DataException e1) {
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throw new CloseException(this.getName(),e1); |
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} catch (KeyException e) { |
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// TODO Auto-generated catch block
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throw new CloseException(this.getName(),e); |
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} |
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this.dbf = null; |
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this.metadata=null; |
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} |
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public boolean isEditable() { |
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return this.dbf.isEditable(); |
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} |
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public IMetadata getMetadata() throws BaseException { |
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if (metadata==null){ |
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IMetadataManager manager=MetadataManager.getManager(); |
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metadata=manager.create(DATASTORE_NAME); |
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} |
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return metadata;
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} |
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// protected Feature getFeatureByPosition(FeatureType ft,long position) throws ReadException {
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//// Field Type (C or M)
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//// char cfieldType = fieldTypes[fieldId];
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//// int fieldType = getFieldType(fieldId);
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// DBFFeature feature=new DBFFeature(ft,this,position);
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// feature.load(this.dbf);
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// return feature;
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// }
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protected FeaturesWriter getFeaturesWriter() throws InitializeWriterException{ |
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FeaturesWriter writer = new DBFFeaturesWriter();
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// writer.init(this);
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return writer;
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} |
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protected long getFeatureCount() throws ReadException{ |
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return dbf.getRecordCount();
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} |
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public DataStoreParameters getParameters() {
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return parameters;
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} |
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public DataExplorer getExplorer() throws InitializeException { |
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DataManager dsm=DataManager.getManager(); |
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DataExplorerParameters dsp = dsm.createDataExplorerParameters( |
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DBFDataExplorer.DATASOURCE_NAME); |
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((FileExplorerParameters)dsp).setSource(dbfParameters.getFile().getParentFile()); |
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DataExplorer src=null;
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try {
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src = dsm.createDataExplorer(dsp); |
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} catch (InitializeException e1) {
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e1.printStackTrace(); |
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} |
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return src;
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} |
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/* (non-Javadoc)
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* @see org.gvsig.fmap.data.feature.FeatureStore#doRefresh()
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*/
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protected void doRefresh() throws OpenException, InitializeException { |
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this.initFeatureType();
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} |
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/**
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* @param i
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* @param i2
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* @return
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* @throws ReadException
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*/
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protected String getStringFieldValue(int rowIndex, int fieldId) throws ReadException { |
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return this.dbf.getStringFieldValue(rowIndex, fieldId); |
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} |
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public boolean canWriteGeometry(int gvSIGgeometryType) { |
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try {
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return getFeaturesWriter().canWriteGeometry(gvSIGgeometryType);
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} catch (InitializeWriterException e) {
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e.printStackTrace(); |
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} |
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return false; |
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} |
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public String getClassName() { |
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// TODO Auto-generated method stub
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return null; |
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} |
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} |