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 / complements / relatedfeatures / RelatedFeaturesImpl.java @ 44262
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package org.gvsig.fmap.dal.complements.relatedfeatures; |
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import java.util.Arrays; |
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import java.util.List; |
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import org.apache.commons.lang3.StringUtils; |
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import org.gvsig.expressionevaluator.ExpressionBuilder; |
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import org.gvsig.expressionevaluator.ExpressionUtils; |
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import org.gvsig.fmap.dal.DALLocator; |
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import org.gvsig.fmap.dal.StoresRepository; |
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import org.gvsig.fmap.dal.complements.RelatedFeatures; |
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import org.gvsig.fmap.dal.complements.Search; |
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import org.gvsig.fmap.dal.feature.Feature; |
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import org.gvsig.fmap.dal.feature.FeatureAttributeDescriptor; |
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import org.gvsig.fmap.dal.feature.FeatureQuery; |
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import org.gvsig.fmap.dal.feature.FeatureStore; |
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import org.gvsig.fmap.dal.feature.FeatureType; |
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import org.gvsig.tools.ToolsLocator; |
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import org.gvsig.tools.complement.AbstractComplement; |
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import org.gvsig.tools.complement.ComplementFactory; |
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import org.gvsig.tools.dispose.DisposeUtils; |
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import org.gvsig.tools.dynobject.Tagged; |
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import org.slf4j.Logger; |
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import org.slf4j.LoggerFactory; |
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/**
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*
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* @author jjdelcerro
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*/
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@SuppressWarnings("UseSpecificCatch") |
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public class RelatedFeaturesImpl |
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extends AbstractComplement<Tagged>
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implements RelatedFeatures {
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protected static final Logger LOGGER = LoggerFactory.getLogger(RelatedFeaturesImpl.class); |
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private class DefaultContextRelatedFeatures implements ContextRelatedFeatures { |
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private FeatureStore featureStore = null; |
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private StoresRepository storesRepository = null; |
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private int refs; |
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public DefaultContextRelatedFeatures() {
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this.refs = 1; |
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} |
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public void addRef() { |
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this.refs++;
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} |
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public void release() { |
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this.refs--;
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} |
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@Override
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public void dispose() { |
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DisposeUtils.disposeQuietly(featureStore); |
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this.featureStore = null; |
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this.storesRepository = null; |
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} |
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@Override
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public ContextRelatedFeatures setStoresRepository(StoresRepository repository) {
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this.storesRepository = repository;
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return this; |
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} |
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@Override
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public StoresRepository getStoresRepository() {
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if (this.storesRepository == null) { |
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FeatureStore store = null;
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if (getObject() instanceof FeatureAttributeDescriptor) { |
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store = ((FeatureAttributeDescriptor) getObject()).getStore(); |
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} else if (getObject() instanceof FeatureType) { |
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store = ((FeatureType) getObject()).getStore(); |
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} |
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if (store == null) { |
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this.storesRepository = DALLocator.getDataManager().getStoresRepository();
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} else {
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this.storesRepository = store.getStoresRepository();
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} |
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} |
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return this.storesRepository; |
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} |
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@Override
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public FeatureStore getFeatureStore() {
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if (this.featureStore == null) { |
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if ( getObject() instanceof FeatureAttributeDescriptor) { |
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FeatureStore store = ((FeatureAttributeDescriptor) getObject()).getStore(); |
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if( store != null ) { |
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StoresRepository repository = store.getStoresRepository(); |
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if( repository.containsKey(getTableName()) ) {
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this.featureStore = (FeatureStore) repository.get(getTableName());
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if( this.featureStore!=null) { |
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return this.featureStore; |
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} |
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} |
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} |
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} |
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StoresRepository repository = this.getStoresRepository();
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this.featureStore = (FeatureStore) repository.get(getTableName());
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if (this.featureStore == null) { |
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LOGGER.warn("Can't locate store '" + getTableName() + "'."); |
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return null; |
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} |
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} |
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return this.featureStore; |
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} |
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@Override
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public FeatureType getFeatureType() {
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try {
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FeatureStore store = this.getFeatureStore();
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return store.getDefaultFeatureType();
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} catch (Exception ex) { |
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return null; |
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} |
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} |
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} |
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public RelatedFeaturesImpl(ComplementFactory<Tagged> factory, Tagged object) {
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super(factory, object);
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} |
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@Override
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public boolean isRelatedFeatures() { |
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return isRelatedFeatures(null); |
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} |
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@Override
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public boolean isRelatedFeatures(ContextRelatedFeatures context) { |
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context = createLocalContextIfNull(context); |
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try {
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String tableName = this.getTableName(); |
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if (StringUtils.isBlank(tableName)
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|| StringUtils.isBlank(this.getUniqueKeyName())) {
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return false; |
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} |
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Tagged attribute = this.getObject();
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if (!(attribute instanceof FeatureAttributeDescriptor)) { |
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return true; |
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} |
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FeatureStore store = ((FeatureAttributeDescriptor) attribute).getStore(); |
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if (store == null) { |
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return true; |
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} |
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StoresRepository repository = store.getStoresRepository(); |
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return repository.containsKey(tableName);
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} finally {
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disposeIfLocalContext(context); |
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} |
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} |
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@Override
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public String getUniqueKeyName() { |
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Tagged attribute = this.getObject();
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String codeName = attribute.getTags().getString(DAL_RELATED_UNIQUE_FIELD_NAME, null); |
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return codeName;
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} |
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// @Override
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// public String getForeingKeyName() {
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// Tagged attribute = this.getObject();
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// String codeName = attribute.getTags().getString(DAL_RELATED_FOREING_KEY_NAME, null);
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// return codeName;
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// }
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@Override
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public String getTableName() { |
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Tagged attribute = this.getObject();
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String tableName = attribute.getTags().getString(DAL_RELATED_TABLE, null); |
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return tableName;
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} |
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@Override
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public ContextRelatedFeatures createContext() {
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return new DefaultContextRelatedFeatures(); |
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} |
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private void disposeIfLocalContext(ContextRelatedFeatures context) { |
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DefaultContextRelatedFeatures c = (DefaultContextRelatedFeatures) context; |
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c.release(); |
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if (c.refs == 0) { |
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context.dispose(); |
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} |
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} |
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private ContextRelatedFeatures createLocalContextIfNull(ContextRelatedFeatures context) {
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if (context == null) { |
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return new DefaultContextRelatedFeatures(); |
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} |
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DefaultContextRelatedFeatures c = (DefaultContextRelatedFeatures) context; |
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c.addRef(); |
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return c;
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} |
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@Override
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public FeatureStore getFeatureStore(ContextRelatedFeatures context) {
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context = createLocalContextIfNull(context); |
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try {
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return context.getFeatureStore();
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} finally {
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disposeIfLocalContext(context); |
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} |
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} |
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// @Override
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// public Object getForeingKey(ContextRelatedFeatures context, Feature feature) {
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//// context = createLocalContextIfNull(context);
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// try {
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// return feature.get(getForeingKeyName());
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// } finally {
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//// disposeIfLocalContext(context);
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// }
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// }
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@Override
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public Object getUniqueKey(ContextRelatedFeatures context, Feature feature) { |
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// context = createLocalContextIfNull(context);
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try {
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return feature.get(getUniqueKeyName());
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} finally {
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// disposeIfLocalContext(context);
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} |
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} |
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// @Override
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// public FeatureQuery getForeingKeyQuery(ContextRelatedFeatures context, Object codeValue) {
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// return this.getQuery(context, this.getForeingKeyName(), codeValue);
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// }
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@Override
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public FeatureQuery getUniqueKeyQuery(ContextRelatedFeatures context, Object codeValue) { |
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return this.getQuery(context, this.getUniqueKeyName(), codeValue); |
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} |
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public FeatureQuery getQuery(ContextRelatedFeatures context, String fieldName, Object codeValue) { |
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context = createLocalContextIfNull(context); |
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try {
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FeatureStore store = context.getFeatureStore(); |
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ExpressionBuilder builder = ExpressionUtils.createExpressionBuilder(); |
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FeatureQuery query = store.createFeatureQuery(); |
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query.setFilter(builder.eq( |
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builder.variable(fieldName), |
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builder.constant(codeValue) |
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).toString() |
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); |
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query.retrievesAllAttributes(); |
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return query;
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} finally {
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disposeIfLocalContext(context); |
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} |
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} |
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@Override
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public List<String> getColumns(ContextRelatedFeatures context) { |
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context = createLocalContextIfNull(context); |
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try {
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Tagged attribute = this.getObject();
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List<String> columnNames; |
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String columns = attribute.getTags().getString(DAL_RELATED_COLUMNS, null); |
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if (StringUtils.isBlank(columns)) {
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FeatureType featureType = context.getFeatureType(); |
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if (featureType == null) { |
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return null; |
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} |
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Search search = (Search) ToolsLocator.getComplementsManager().get( |
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Search.COMPLEMENT_MANE, featureType |
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); |
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columnNames = search.getResultColumnNames(); |
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} else {
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columnNames = Arrays.asList(split(columns, ":/;,|-")); |
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} |
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return columnNames;
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} finally {
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disposeIfLocalContext(context); |
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} |
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} |
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private String[] split(String value, String separators) { |
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int firstSeparatorPosition = 1000000; |
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Character sep = null; |
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for (char ch : separators.toCharArray()) { |
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int pos = value.indexOf(ch);
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if (pos > 0 && pos < firstSeparatorPosition) { |
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sep = ch; |
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firstSeparatorPosition = pos; |
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} |
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} |
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if (sep == null) { |
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return new String[]{value}; |
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} |
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return value.split("[" + sep + "]"); |
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} |
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} |