/*
* 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;
}
}