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 / feature / impl / DefaultFeatureStoreTransforms.java @ 40435
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package org.gvsig.fmap.dal.feature.impl; |
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import java.util.ArrayList; |
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import java.util.Collections; |
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import java.util.Iterator; |
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import java.util.List; |
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import java.util.ListIterator; |
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import org.gvsig.fmap.dal.exception.DataException; |
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import org.gvsig.fmap.dal.feature.EditableFeature; |
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import org.gvsig.fmap.dal.feature.EditableFeatureType; |
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import org.gvsig.fmap.dal.feature.Feature; |
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import org.gvsig.fmap.dal.feature.FeatureStore; |
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import org.gvsig.fmap.dal.feature.FeatureStoreNotification; |
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import org.gvsig.fmap.dal.feature.FeatureStoreTransform; |
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import org.gvsig.fmap.dal.feature.FeatureStoreTransforms; |
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import org.gvsig.fmap.dal.feature.FeatureType; |
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import org.gvsig.fmap.dal.feature.spi.FeatureProvider; |
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import org.gvsig.tools.ToolsLocator; |
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import org.gvsig.tools.dynobject.DynStruct; |
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import org.gvsig.tools.dynobject.exception.DynFieldNotFoundException; |
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import org.gvsig.tools.persistence.Persistent; |
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import org.gvsig.tools.persistence.PersistentState; |
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import org.gvsig.tools.persistence.exception.PersistenceException; |
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public class DefaultFeatureStoreTransforms implements FeatureStoreTransforms, |
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Persistent {
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private DefaultFeatureStore store;
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private List transforms; |
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private Boolean isTramsformValues; |
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private TransformTemporalList lastTransformStack;
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public DefaultFeatureStoreTransforms() {
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this.store = null; |
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this.transforms = new ArrayList(); |
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this.isTramsformValues = Boolean.FALSE; |
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} |
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public DefaultFeatureStoreTransforms(DefaultFeatureStore store) {
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this.store = store;
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this.transforms = new ArrayList(); |
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} |
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protected void checkEditingMode() { |
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if (store == null || store.getMode() != FeatureStore.MODE_QUERY) { |
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throw new IllegalStateException(); |
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} |
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} |
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protected void notifyChangeToStore() { |
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this.store.notifyChange(FeatureStoreNotification.TRANSFORM_CHANGE);
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} |
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public FeatureStoreTransform add(FeatureStoreTransform transform)
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throws DataException {
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checkEditingMode(); |
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if (transform.getDefaultFeatureType()!=null){ |
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if( ! transform.getFeatureTypes().contains(transform.getDefaultFeatureType())) {
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throw new IllegalArgumentException(); // FIXME: A�adir tipo especifico. |
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} |
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this.transforms.add(transform);
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transform.setSourceMetadata(this.store.metadata);
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this.notifyChangeToStore();
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if (this.isTramsformValues == null |
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|| (!this.isTramsformValues.booleanValue())) {
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if (transform.isTransformsOriginalValues()) {
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this.isTramsformValues = Boolean.TRUE; |
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} |
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} |
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} |
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return transform;
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} |
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public void clear() { |
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checkEditingMode(); |
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this.transforms.clear();
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this.notifyChangeToStore();
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this.isTramsformValues = Boolean.FALSE; |
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} |
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public FeatureStoreTransform getTransform(int index) { |
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return (FeatureStoreTransform) this.transforms.get(index); |
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} |
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public Iterator iterator() { |
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return Collections.unmodifiableList(transforms).iterator(); |
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} |
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public Object remove(int index) { |
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checkEditingMode(); |
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Object trans = this.transforms.remove(index); |
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this.notifyChangeToStore();
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this.isTramsformValues = null; |
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return trans;
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} |
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public boolean remove(FeatureStoreTransform transform) { |
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checkEditingMode(); |
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boolean removed = this.transforms.remove(transform); |
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if (removed) {
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this.notifyChangeToStore();
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} |
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this.isTramsformValues = null; |
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return removed;
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} |
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public int size() { |
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return this.transforms.size(); |
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} |
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public boolean isEmpty() { |
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return this.transforms.isEmpty(); |
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} |
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private class TransformTemporalListElement { |
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public FeatureStoreTransform transform = null; |
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public FeatureType targetFeatureType = null; |
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} |
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private class TransformTemporalList extends ArrayList { |
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/**
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*
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*/
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private static final long serialVersionUID = 1677014259279944000L; |
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private FeatureType targetFType;
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public boolean add(Object arg0) { |
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if (this.isEmpty()) { |
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targetFType = ((TransformTemporalListElement) arg0).targetFeatureType; |
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} |
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return super.add(arg0); |
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} |
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} |
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protected TransformTemporalList getTransformTemporalList(
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FeatureType targetFeatureType) {
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if (this.lastTransformStack == null |
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|| this.lastTransformStack.size() != this.transforms.size() |
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|| !(this.lastTransformStack.targetFType
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.equals(targetFeatureType))) {
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TransformTemporalList result = new TransformTemporalList();
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TransformTemporalListElement item; |
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FeatureType nextFType = targetFeatureType; |
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for (int i = transforms.size() - 1; i > -1; i--) { |
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item = new TransformTemporalListElement();
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item.transform = (FeatureStoreTransform) transforms.get(i); |
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item.targetFeatureType = nextFType; |
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nextFType = item.transform |
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.getSourceFeatureTypeFrom(item.targetFeatureType); |
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result.add(item); |
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} |
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this.lastTransformStack = result;
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} |
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return this.lastTransformStack; |
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} |
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public Feature applyTransform(DefaultFeature source,
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FeatureType targetFeatureType) |
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throws DataException {
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if (this.transforms.isEmpty()) { |
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return source;
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} |
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TransformTemporalList stack = this
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.getTransformTemporalList(targetFeatureType); |
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TransformTemporalListElement item; |
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FeatureProvider targetData; |
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EditableFeature target; |
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ListIterator iterator = stack.listIterator(stack.size());
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FeatureType tft = null;
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while (iterator.hasPrevious()) {
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item = (TransformTemporalListElement) iterator.previous(); |
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tft = item.targetFeatureType; |
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if (tft instanceof EditableFeatureType) { |
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/*
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* Must be non-editable to create
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* DefaultFeatureProvider
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*/
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tft = ((EditableFeatureType) tft).getNotEditableCopy(); |
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} |
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targetData = this.store.createDefaultFeatureProvider(tft);
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targetData.setOID(source.getData().getOID()); |
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targetData.setNew(false);
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target = (new DefaultEditableFeature(this.store, targetData)) |
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.getEditable(); |
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item.transform.applyTransform(source, target); |
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source = (DefaultFeature) target.getNotEditableCopy(); |
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} |
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return source;
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} |
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public FeatureType getSourceFeatureTypeFrom(FeatureType targetFeatureType) {
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FeatureType tmpFType = targetFeatureType; |
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for (int i = transforms.size() - 1; i > -1; i--) { |
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FeatureStoreTransform transform = (FeatureStoreTransform) transforms |
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.get(i); |
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tmpFType = transform.getSourceFeatureTypeFrom(tmpFType); |
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} |
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return tmpFType;
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} |
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public FeatureType getDefaultFeatureType() throws DataException { |
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if (this.transforms.isEmpty()) { |
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return null; |
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} |
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FeatureStoreTransform transform = (FeatureStoreTransform) this.transforms
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.get(this.transforms.size() - 1); |
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return transform.getDefaultFeatureType();
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} |
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public List getFeatureTypes() throws DataException { |
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if (this.transforms.isEmpty()) { |
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return null; |
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} |
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FeatureStoreTransform transform = (FeatureStoreTransform) this.transforms
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.get(this.transforms.size() - 1); |
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return transform.getFeatureTypes();
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} |
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public FeatureStore getFeatureStore() {
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return this.store; |
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} |
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public void setFeatureStore(FeatureStore featureStore) { |
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if (this.store != null) { |
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throw new IllegalStateException();// FIXME: A�adir tipo especifico. |
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} |
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this.store = (DefaultFeatureStore) featureStore;
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} |
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public void setStoreForClone(FeatureStore featureStore) { |
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this.store = (DefaultFeatureStore) featureStore;
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} |
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public boolean isTransformsOriginalValues() { |
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if (this.isTramsformValues == null) { |
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Iterator iter = this.transforms.iterator(); |
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FeatureStoreTransform transform; |
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this.isTramsformValues = Boolean.FALSE; |
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while (iter.hasNext()) {
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transform = (FeatureStoreTransform) iter.next(); |
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if (transform.isTransformsOriginalValues()){
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this.isTramsformValues = Boolean.TRUE; |
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break;
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} |
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} |
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} |
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return this.isTramsformValues.booleanValue(); |
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} |
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public FeatureType getFeatureType(String featureTypeId) |
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throws DataException {
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if (this.transforms.isEmpty()) { |
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return null; |
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} |
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if (featureTypeId == null) { |
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return this.getDefaultFeatureType(); |
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} |
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Iterator iter = this.getFeatureTypes().iterator(); |
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FeatureType fType; |
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while (iter.hasNext()) {
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fType = (FeatureType) iter.next(); |
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if (fType.getId().equals(featureTypeId)) {
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return fType;
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} |
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} |
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return null; |
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} |
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// *** Persistence ***
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public void saveToState(PersistentState state) throws PersistenceException { |
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state.set("store", store);
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state.set("isTramsformValues", this.isTramsformValues); |
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state.set("transforms", this.transforms); |
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} |
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public void loadFromState(PersistentState state) |
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throws PersistenceException {
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this.isTramsformValues = (Boolean) state.get("isTramsformValues"); |
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this.transforms = (List) state.get("transforms"); |
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this.store = (DefaultFeatureStore) state.get("store"); |
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} |
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public static void registerPersistent() { |
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DynStruct definition = ToolsLocator.getPersistenceManager().addDefinition( |
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DefaultFeatureStoreTransforms.class, |
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"DefaultFeatureStoreTransforms",
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"DefaultFeatureStoreTransforms Persistent definition",
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null,
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null
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); |
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definition.addDynFieldBoolean("isTramsformValues").setMandatory(false); |
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definition.addDynFieldList("transforms").setClassOfItems(FeatureStoreTransform.class).setMandatory(true); |
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definition.addDynFieldObject("store").setClassOfValue(FeatureStore.class).setMandatory(true); |
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} |
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public Object getDynValue(String name) throws DynFieldNotFoundException { |
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if( ! this.transforms.isEmpty() ) { |
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FeatureStoreTransform transform = (FeatureStoreTransform) transforms.get(this.transforms.size()-1); |
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if( transform.hasDynValue(name) ) {
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return transform.getDynValue(name);
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} |
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} |
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throw new DynFieldNotFoundException(name, "transforms"); |
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} |
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public void setDynValue(String name, Object value) throws DynFieldNotFoundException { |
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if( ! this.transforms.isEmpty() ) { |
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FeatureStoreTransform transform = (FeatureStoreTransform) transforms.get(this.transforms.size()-1); |
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transform.setDynValue(name, value); |
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} |
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} |
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public boolean hasDynValue(String name) { |
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if( ! this.transforms.isEmpty() ) { |
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FeatureStoreTransform transform = (FeatureStoreTransform) transforms.get(this.transforms.size()-1); |
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if( transform.hasDynValue(name) ) {
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return true; |
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} |
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} |
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return false; |
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} |
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public Object clone() throws CloneNotSupportedException { |
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DefaultFeatureStoreTransforms cloned = (DefaultFeatureStoreTransforms) super.clone();
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cloned.transforms = new ArrayList(); |
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int n = this.transforms.size(); |
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for (int i=0; i<n; i++) { |
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cloned.transforms.add(((FeatureStoreTransform) this.transforms.get(i)).clone());
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} |
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cloned.lastTransformStack = null;
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return cloned;
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} |
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} |