Application: gvSIG desktop » gvSIG projections

package org.gvsig.proj.swing.impl.tree;

import java.util.ArrayList;

import java.util.List;

import javax.swing.tree.TreeNode;

import org.gvsig.proj.catalog.CRSCatalogManager;

import org.gvsig.proj.catalog.CRSDefinition;

import org.gvsig.proj.catalog.exception.UnsupportedCoordinateReferenceSystemException;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

public class CrsLoader extends AsyncGroupLoader {

        final private CRSCatalogManager catalogManager;

        final private CRSSearchFilter filter;

        private static Logger logger = LoggerFactory.getLogger(CrsLoader.class);

        public CrsLoader(CRSSearchFilter filter,

                        LoadedGroup caller,

                        CRSCatalogManager manager) {

                super(caller);

                this.catalogManager = manager;

                this.filter = filter;

        }

        @Override

        protected ArrayList<TreeNode> doInBackground() throws Exception {

                ArrayList<TreeNode> result = new ArrayList<TreeNode>();

                List<String> codes;

                if (filter!=null) {

                        codes = catalogManager.search(filter.getAuthority(), filter.getTextFilter(), filter.getIncludedTypes(), filter.getExcludedTypes());

                }

                else {

                        codes = catalogManager.getCodes();

                }

                CRSDefinition def;

                CrsTreeNode node;

                for (String code: codes) {

                        if (isCancelled()) {

                                return null;

                        }

                        try {

                                def = catalogManager.getCRSDefinition(code);

                                node = new CrsTreeNode(def, caller);

                                result.add(node);

                        } catch (UnsupportedCoordinateReferenceSystemException e) {

                                logger.debug("Unsupported CRS", e);

                        }

                }

                return result;

        }        

}