/*
* 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.cache;
import java.io.
IOException;
import freemarker.core.
TemplateConfiguration;
import freemarker.template.
Configuration;
/**
* Returns the given {@link TemplateConfiguration} directly, or another {@link TemplateConfigurationFactory}'s result, when
* the specified matcher matches the template source.
*
* @since 2.3.24
*/
public class
ConditionalTemplateConfigurationFactory extends
TemplateConfigurationFactory {
private final
TemplateSourceMatcher matcher;
private final
TemplateConfiguration templateConfiguration;
private final
TemplateConfigurationFactory templateConfigurationFactory;
public
ConditionalTemplateConfigurationFactory(
TemplateSourceMatcher matcher,
TemplateConfigurationFactory templateConfigurationFactory) {
this.
matcher =
matcher;
this.
templateConfiguration = null;
this.
templateConfigurationFactory =
templateConfigurationFactory;
}
public
ConditionalTemplateConfigurationFactory(
TemplateSourceMatcher matcher,
TemplateConfiguration templateConfiguration) {
this.
matcher =
matcher;
this.
templateConfiguration =
templateConfiguration;
this.
templateConfigurationFactory = null;
}
@
Override
public
TemplateConfiguration get(
String sourceName,
Object templateSource)
throws
IOException,
TemplateConfigurationFactoryException {
if (
matcher.
matches(
sourceName,
templateSource)) {
if (
templateConfigurationFactory != null) {
return
templateConfigurationFactory.
get(
sourceName,
templateSource);
} else {
return
templateConfiguration;
}
} else {
return null;
}
}
@
Override
protected void
setConfigurationOfChildren(
Configuration cfg) {
if (
templateConfiguration != null) {
templateConfiguration.
setParentConfiguration(
cfg);
}
if (
templateConfigurationFactory != null) {
templateConfigurationFactory.
setConfiguration(
cfg);
}
}
}