| /* |
| * Copyright 2011 Google 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 com.google.gwt.requestfactory.client.impl; |
| |
| import com.google.gwt.autobean.shared.ValueCodex; |
| import com.google.gwt.editor.client.EditorContext; |
| import com.google.gwt.editor.client.EditorVisitor; |
| |
| import java.util.ArrayList; |
| import java.util.LinkedHashSet; |
| import java.util.List; |
| import java.util.Set; |
| |
| /** |
| * Collects all non-value-type paths in an editor hierarchy for use with |
| * {@link com.google.gwt.requestfactory.client.RequestFactoryEditorDriver#getPaths()} |
| * . |
| */ |
| class PathCollector extends EditorVisitor { |
| /** |
| * Use a set in the case of aliased editors, so we don't repeat path entries. |
| */ |
| private final Set<String> paths = new LinkedHashSet<String>(); |
| |
| public List<String> getPaths() { |
| return new ArrayList<String>(paths); |
| } |
| |
| public <T> boolean visit(EditorContext<T> ctx) { |
| String path = ctx.getAbsolutePath(); |
| if (path.length() > 0) { |
| if (ValueCodex.canDecode(ctx.getEditedType())) { |
| /* |
| * If there's an @Path("foo.bar.valueField") annotation, we want to |
| * collect the containing "foo.bar" path. |
| */ |
| int dotPosition = path.lastIndexOf('.'); |
| if (dotPosition > 0) { |
| String parentPath = path.substring(0, dotPosition); |
| paths.add(parentPath); |
| } |
| } else { |
| // Always collect @Path("foo.bar.baz") field, when baz isn't a value |
| paths.add(path); |
| } |
| } |
| if (ctx.asCompositeEditor() != null) { |
| ctx.traverseSyntheticCompositeEditor(this); |
| } |
| return true; |
| } |
| } |