| /* |
| * Copyright 2013 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.useragent.rebind; |
| |
| import com.google.gwt.core.ext.BadPropertyValueException; |
| import com.google.gwt.core.ext.ConfigurationProperty; |
| import com.google.gwt.core.ext.Generator; |
| import com.google.gwt.core.ext.Generator.RunsLocal; |
| import com.google.gwt.core.ext.GeneratorContext; |
| import com.google.gwt.core.ext.TreeLogger; |
| import com.google.gwt.core.ext.UnableToCompleteException; |
| import com.google.gwt.useragent.client.UserAgentAsserter; |
| import com.google.gwt.useragent.client.UserAgentAsserter.UserAgentAsserterDisabled; |
| |
| /** |
| * Generator to enable/disable {@link UserAgentAsserter}. This generator exists because we can't |
| * deferred-bind via configuration property. |
| */ |
| @RunsLocal(requiresProperties = {"user.agent", "user.agent.runtimeWarning"}) |
| public class UserAgentAsserterGenerator extends Generator { |
| |
| private static final String PROPERTY_USER_AGENT_RUNTIME_WARNING = "user.agent.runtimeWarning"; |
| |
| private static final String USER_AGENT_ASSERTER = UserAgentAsserter.class.getCanonicalName(); |
| private static final String USER_AGENT_ASSERTER_DISABLED = |
| UserAgentAsserterDisabled.class.getCanonicalName(); |
| |
| @Override |
| public String generate(TreeLogger logger, GeneratorContext context, String typeName) |
| throws UnableToCompleteException { |
| try { |
| ConfigurationProperty property = |
| context.getPropertyOracle().getConfigurationProperty(PROPERTY_USER_AGENT_RUNTIME_WARNING); |
| if (Boolean.valueOf(property.getValues().get(0)) == false) { |
| return USER_AGENT_ASSERTER_DISABLED; |
| } |
| } catch (BadPropertyValueException e) { |
| logger.log(TreeLogger.WARN, |
| "Unable to find value for '" + PROPERTY_USER_AGENT_RUNTIME_WARNING + "'", e); |
| } |
| return USER_AGENT_ASSERTER; |
| } |
| } |