Application: gvSIG desktop » gvSIG projections

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

import java.util.ArrayList;

import java.util.concurrent.ExecutionException;

import javax.swing.SwingWorker;

import javax.swing.tree.TreeNode;

import org.gvsig.tools.ToolsLocator;

import org.gvsig.tools.i18n.I18nManager;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

public abstract class AsyncGroupLoader extends SwingWorker<ArrayList<TreeNode>, TreeNode>

                implements GroupLoader {

        final protected I18nManager i18nManager = ToolsLocator.getI18nManager();

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

        protected LoadedGroup caller;

        public AsyncGroupLoader(LoadedGroup caller) {

                this.caller = caller;

        }

        @Override

        protected void done() {

                super.done();

                if (!isCancelled()) {

                        try {

                                ArrayList<TreeNode> result = get();

                                this.caller.loaded(result, this);

                        } catch (InterruptedException | ExecutionException e) {

                                logger.debug(e.getMessage(), e);

                        }

                }

                else {

                        this.caller.cancelled(this);

                }

        }

        @Override

        public void cancel() {

                cancel(false);

        }

        @Override

        public TreeNode createLoadingNode() {

                return new LoadingNode(caller, caller.geTreeContainer(), i18nManager.getTranslation("Loading..."));

        }

}