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 / RecentUsedsAttributesImpl.java
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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.Collection; |
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import java.util.Collections; |
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import java.util.HashMap; |
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import java.util.List; |
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import java.util.Map; |
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import org.apache.commons.collections4.queue.CircularFifoQueue; |
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import org.gvsig.fmap.dal.feature.FeatureAttributeDescriptor; |
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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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/**
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*
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* @author jjdelcerro
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*/
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public class RecentUsedsAttributesImpl { |
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private final Map<String,CircularFifoQueue<String>> recentsForStore; |
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public RecentUsedsAttributesImpl() {
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this.recentsForStore = new HashMap<>(); |
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} |
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public Collection<String> getNames(FeatureType featureType) { |
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FeatureStore store = featureType.getStore(); |
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if( store == null ) { |
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return Collections.EMPTY_LIST; |
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} |
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CircularFifoQueue<String> recents = this.recentsForStore.get(store.getFullName()); |
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if( recents==null ) { |
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return Collections.EMPTY_LIST; |
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} |
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return recents;
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} |
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public List<FeatureAttributeDescriptor> getAttributes(FeatureType featureType) { |
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List<FeatureAttributeDescriptor> r = new ArrayList<>(); |
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for (String name : this.getNames(featureType)) { |
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FeatureAttributeDescriptor attrRecendUsed = featureType.getAttributeDescriptor(name); |
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if (attrRecendUsed != null) { |
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r.add(attrRecendUsed); |
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} |
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} |
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return r;
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} |
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public void add(FeatureAttributeDescriptor attribute) { |
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this.add(attribute.getFeatureType(), attribute.getName());
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} |
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public void add(FeatureType featureType, FeatureAttributeDescriptor attribute) { |
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this.add(featureType, attribute.getName());
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} |
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public void add(FeatureType featureType, String name) { |
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String storeFullName = featureType.getStore().getFullName();
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CircularFifoQueue<String> recents = this.recentsForStore.get(storeFullName); |
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if( recents==null ) { |
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recents = new CircularFifoQueue(this.getMaxSize()); |
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this.recentsForStore.put(storeFullName, recents);
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} |
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recents.remove(name); |
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recents.add(name); |
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} |
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public int getMaxSize() { |
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return 6; |
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} |
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} |