EbookSheetPropertyMultiSelectionModel.java

package org.rr.jeborker.gui.model;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

import org.rr.commons.mufs.IResourceHandler;
import org.rr.commons.mufs.ResourceHandlerFactory;
import org.rr.commons.utils.StringUtil;
import org.rr.jeborker.db.item.EbookPropertyItem;
import org.rr.jeborker.metadata.MetadataHandlerFactory;
import org.rr.jeborker.metadata.MetadataProperty;
import org.rr.jeborker.metadata.IMetadataReader.COMMON_METADATA_TYPES;

import com.l2fprod.common.propertysheet.Property;

public class EbookSheetPropertyMultiSelectionModel extends EbookSheetPropertyModel {
	
	public void loadProperties(List<EbookPropertyItem> items) {
		final List<IResourceHandler> ebookResourceHandlers = new ArrayList<>(items.size());
		for (int i = 0; i < items.size(); i++) {
			EbookPropertyItem ebookPropertyItem = items.get(i);
			if(ebookPropertyItem != null && ebookPropertyItem.getFile() != null) {
				IResourceHandler resourceHandler = ResourceHandlerFactory.getResourceHandler(ebookPropertyItem.getFile());
				ebookResourceHandlers.add(resourceHandler);
			}
		}
		
		reader = MetadataHandlerFactory.getReaderForIResourceHandlers(ebookResourceHandlers);
		allMetadata = new ArrayList<>(COMMON_METADATA_TYPES.values().length);
		final ArrayList<Property> result = new ArrayList<>(allMetadata.size());
		
		for(COMMON_METADATA_TYPES type : COMMON_METADATA_TYPES.values()) {
			List<MetadataProperty> l = Collections.emptyList();
			List<MetadataProperty> metadataByType = reader.getMetadataByType(true, l, type);
			if(!metadataByType.isEmpty()) {
				MetadataProperty metadataProperty = metadataByType.get(0);
				if(metadataProperty != null) {
					allMetadata.add(metadataProperty);

					if(metadataProperty.isVisible()) {
						Property property = createProperty(metadataProperty, items, type);
						result.add(property);
					}
				}
			}
		}
		
		Collections.sort(result, PROPERTY_COMPARATOR);
		
		setProperties(result.toArray(new Property[result.size()]));
	}
	
	private static Property createProperty(final MetadataProperty metadataProperty, final List<EbookPropertyItem> items, final COMMON_METADATA_TYPES type) {
		return new EbookSheetProperty(metadataProperty, items, -1) {
			final ArrayList<String> values = new ArrayList<String>(items.size()) {
				{
					add(null); //selection value
					for(EbookPropertyItem item : items) {
						addAll(type.getValue(item));
					}	
				}
			};
			
			@Override
			public Object getValue() {
				Object sValue = super.getValue();
				if(sValue instanceof List) {
					Object o = ((List<?>) sValue).get(0);
					values.set(0, StringUtil.toString(o, true));
				} else {
					values.set(0, StringUtil.toString(sValue, true));
				}
				return values;
			}
			
		};
	}		
	
}