| /* |
| * 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.ext.xml; |
| import java.util.HashMap; |
| import java.util.List; |
| |
| import freemarker.template.TemplateMethodModel; |
| import freemarker.template.TemplateModelException; |
| import freemarker.template.TemplateScalarModel; |
| |
| /** |
| */ |
| class Namespaces |
| implements |
| TemplateMethodModel, |
| Cloneable { |
| private HashMap namespaces; |
| private boolean shared; |
| |
| Namespaces() { |
| namespaces = new HashMap(); |
| namespaces.put("", ""); |
| namespaces.put("xml", "http://www.w3.org/XML/1998/namespace"); |
| shared = false; |
| } |
| |
| @Override |
| public Object clone() { |
| try { |
| Namespaces clone = (Namespaces) super.clone(); |
| clone.namespaces = (HashMap) namespaces.clone(); |
| clone.shared = false; |
| return clone; |
| } catch (CloneNotSupportedException e) { |
| throw new Error(); // Cannot happen |
| } |
| } |
| |
| public String translateNamespacePrefixToUri(String prefix) { |
| synchronized (namespaces) { |
| return (String) namespaces.get(prefix); |
| } |
| } |
| |
| public Object exec(List arguments) throws TemplateModelException { |
| if (arguments.size() != 2) { |
| throw new TemplateModelException("_registerNamespace(prefix, uri) requires two arguments"); |
| } |
| registerNamespace((String) arguments.get(0), (String) arguments.get(1)); |
| return TemplateScalarModel.EMPTY_STRING; |
| } |
| |
| void registerNamespace(String prefix, String uri) { |
| synchronized (namespaces) { |
| namespaces.put(prefix, uri); |
| } |
| } |
| |
| void markShared() { |
| if (!shared) { |
| shared = true; |
| } |
| } |
| |
| boolean isShared() { |
| return shared; |
| } |
| } |