org.springframework.boot.autoconfigure.velocity.VelocityTemplateAvailabilityProvider Maven / Gradle / Ivy
/*
* Copyright 2012-2016 the original author or authors.
*
* 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 org.springframework.boot.autoconfigure.velocity;
import org.springframework.boot.autoconfigure.template.TemplateAvailabilityProvider;
import org.springframework.boot.bind.RelaxedPropertyResolver;
import org.springframework.core.env.Environment;
import org.springframework.core.env.PropertyResolver;
import org.springframework.core.io.ResourceLoader;
import org.springframework.util.ClassUtils;
/**
* {@link TemplateAvailabilityProvider} that provides availability information for
* Velocity view templates.
*
* @author Andy Wilkinson
* @since 1.1.0
* @deprecated as of 1.4 following the deprecation of Velocity support in Spring Framework
* 4.3
*/
@Deprecated
public class VelocityTemplateAvailabilityProvider
implements TemplateAvailabilityProvider {
@Override
public boolean isTemplateAvailable(String view, Environment environment,
ClassLoader classLoader, ResourceLoader resourceLoader) {
if (ClassUtils.isPresent("org.apache.velocity.app.VelocityEngine", classLoader)) {
PropertyResolver resolver = new RelaxedPropertyResolver(environment,
"spring.velocity.");
String loaderPath = resolver.getProperty("resource-loader-path",
VelocityProperties.DEFAULT_RESOURCE_LOADER_PATH);
String prefix = resolver.getProperty("prefix",
VelocityProperties.DEFAULT_PREFIX);
String suffix = resolver.getProperty("suffix",
VelocityProperties.DEFAULT_SUFFIX);
return resourceLoader.getResource(loaderPath + prefix + view + suffix)
.exists();
}
return false;
}
}