| /* |
| * 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.core.ext; |
| |
| import java.io.Serializable; |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.List; |
| |
| /** |
| * A container for saving lists of deferred-binding and configuration properties |
| * to be compared subsequently with a PropertyOracle. |
| */ |
| public class CachedPropertyInformation implements Serializable { |
| |
| private final List<SelectionProperty> selectionProperties; |
| private final List<ConfigurationProperty> configProperties; |
| |
| public CachedPropertyInformation(TreeLogger logger, PropertyOracle oracle, |
| Collection<String> selectionPropertyNames, |
| Collection<String> configPropertyNames) { |
| |
| if (oracle == null) { |
| selectionProperties = null; |
| configProperties = null; |
| return; |
| } |
| |
| if (selectionPropertyNames == null) { |
| selectionProperties = null; |
| } else { |
| selectionProperties = new ArrayList<SelectionProperty>(); |
| for (String name : selectionPropertyNames) { |
| try { |
| SelectionProperty selProp = oracle.getSelectionProperty(logger, name); |
| selectionProperties.add(selProp); |
| } catch (BadPropertyValueException e) { |
| } |
| } |
| } |
| |
| if (configPropertyNames == null) { |
| configProperties = null; |
| } else { |
| configProperties = new ArrayList<ConfigurationProperty>(); |
| for (String name : configPropertyNames) { |
| try { |
| ConfigurationProperty configProp = oracle.getConfigurationProperty(name); |
| configProperties.add(configProp); |
| } catch (BadPropertyValueException e) { |
| } |
| } |
| } |
| } |
| |
| /** |
| * Check a previously cached set of deferred-binding and configuration |
| * properties with the provided property oracle. |
| */ |
| public boolean checkPropertiesWithPropertyOracle(TreeLogger logger, |
| PropertyOracle oracle) { |
| |
| if (selectionProperties != null) { |
| try { |
| for (SelectionProperty selProp : selectionProperties) { |
| SelectionProperty currProp = |
| oracle.getSelectionProperty(logger, selProp.getName()); |
| if (!currProp.getCurrentValue().equals(selProp.getCurrentValue())) { |
| logger.log(TreeLogger.TRACE, "Found changed property: " + selProp.getName()); |
| return false; |
| } |
| } |
| } catch (BadPropertyValueException e) { |
| logger.log(TreeLogger.TRACE, "Found problem checking property", e); |
| return false; |
| } |
| } |
| |
| if (configProperties != null) { |
| try { |
| for (ConfigurationProperty configProp : configProperties) { |
| ConfigurationProperty currProp = |
| oracle.getConfigurationProperty(configProp.getName()); |
| if (!currProp.equals(configProp)) { |
| logger.log(TreeLogger.TRACE, |
| "Found changed configuration property: " + configProp.getName()); |
| return false; |
| } |
| } |
| } catch (BadPropertyValueException e) { |
| logger.log(TreeLogger.TRACE, |
| "Found problem checking configuration property", e); |
| return false; |
| } |
| } |
| |
| return true; |
| } |
| } |