Java tutorial
/* * Copyright 2010 JBoss Inc * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.drools.guvnor.client.explorer; import org.drools.guvnor.client.common.GenericCallback; import org.drools.guvnor.client.messages.Constants; import org.drools.guvnor.client.resources.Images; import org.drools.guvnor.client.rpc.PackageConfigData; import org.drools.guvnor.client.rpc.RepositoryServiceFactory; import org.drools.guvnor.client.rpc.SnapshotInfo; import org.drools.guvnor.client.util.TabOpener; import com.google.gwt.core.client.GWT; import com.google.gwt.event.logical.shared.OpenEvent; import com.google.gwt.event.logical.shared.OpenHandler; import com.google.gwt.event.logical.shared.SelectionEvent; import com.google.gwt.user.client.ui.Tree; import com.google.gwt.user.client.ui.TreeItem; public class DeploymentTree extends AbstractTree implements OpenHandler<TreeItem> { private static Constants constants = GWT.create(Constants.class); private static Images images = (Images) GWT.create(Images.class); public DeploymentTree() { this.name = constants.PackageSnapshots(); this.image = images.deploy(); mainTree.setAnimationEnabled(true); ExplorerNodeConfig.setupDeploymentTree(mainTree, itemWidgets); mainTree.addSelectionHandler(this); mainTree.addOpenHandler((OpenHandler<TreeItem>) this); } @Override protected Tree createTree() { return new Tree(); } public void refreshTree() { mainTree.clear(); itemWidgets.clear(); ExplorerNodeConfig.setupDeploymentTree(mainTree, itemWidgets); } public void onSelection(SelectionEvent<TreeItem> event) { TreeItem item = event.getSelectedItem(); if (item.getUserObject() instanceof Object[]) { Object[] o = (Object[]) item.getUserObject(); final String snapName = ((SnapshotInfo) o[0]).name; PackageConfigData conf = (PackageConfigData) o[1]; RepositoryServiceFactory.getService().listSnapshots(conf.name, new GenericCallback<SnapshotInfo[]>() { public void onSuccess(SnapshotInfo[] a) { for (SnapshotInfo snap : a) { if (snap.name.equals(snapName)) { TabOpener opener = TabOpener.getInstance(); opener.openSnapshot(snap); return; } } } }); } } public void onOpen(OpenEvent<TreeItem> event) { final TreeItem node = event.getTarget(); if (ExplorerNodeConfig.PACKAGE_SNAPSHOTS.equals(itemWidgets.get(node))) { return; } final PackageConfigData conf = (PackageConfigData) node.getUserObject(); if (conf != null) { RepositoryServiceFactory.getService().listSnapshots(conf.name, new GenericCallback<SnapshotInfo[]>() { public void onSuccess(SnapshotInfo[] snaps) { node.removeItems(); for (final SnapshotInfo snapInfo : snaps) { TreeItem snap = new TreeItem(snapInfo.name); //snap.setTooltip(snapInfo.comment); snap.setUserObject(new Object[] { snapInfo, conf }); node.addItem(snap); } } }); } } }