| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 freemarker.core; |
| |
| import freemarker.core.Environment.NestedElementTemplateDirectiveBody; |
| import freemarker.core.ThreadInterruptionSupportTemplatePostProcessor.ThreadInterruptionCheck; |
| import freemarker.template.TemplateDirectiveBody; |
| import freemarker.template.TemplateException; |
| import freemarker.template.utility.StringUtil; |
| |
| /** |
| * [2.4] Should become public somehow; this is more intelligent than a {@code null} check, for example, when the body |
| * only contains a thread interruption check, it treats it as valid. Indicates that the directive shouldn't have |
| * nested content, but it had. This will probably become public when the directive/method stuff was reworked. |
| */ |
| class NestedContentNotSupportedException extends TemplateException { |
| |
| public static void check(TemplateDirectiveBody body) throws NestedContentNotSupportedException { |
| if (body == null) { |
| return; |
| } |
| if (body instanceof NestedElementTemplateDirectiveBody) { |
| TemplateElement[] tes = ((NestedElementTemplateDirectiveBody) body).getChildrenBuffer(); |
| if (tes == null || tes.length == 0 |
| || tes[0] instanceof ThreadInterruptionCheck && (tes.length == 1 || tes[1] == null)) { |
| return; |
| } |
| } |
| throw new NestedContentNotSupportedException(Environment.getCurrentEnvironment()); |
| } |
| |
| |
| private NestedContentNotSupportedException(Environment env) { |
| this(null, null, env); |
| } |
| |
| private NestedContentNotSupportedException(Exception cause, Environment env) { |
| this(null, cause, env); |
| } |
| |
| private NestedContentNotSupportedException(String description, Environment env) { |
| this(description, null, env); |
| } |
| |
| private NestedContentNotSupportedException(String description, Exception cause, Environment env) { |
| super( "Nested content (body) not supported." |
| + (description != null ? " " + StringUtil.jQuote(description) : ""), |
| cause, env); |
| } |
| |
| } |