/**
* Copyright 2003-2010 Terracotta, Inc.
*
* 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 net.sf.ehcache.config.generator;
import java.io.ByteArrayOutputStream;
import java.io.PrintWriter;
import net.sf.ehcache.config.CacheConfiguration;
import net.sf.ehcache.config.Configuration;
import net.sf.ehcache.config.generator.model.NodeElementVisitor;
import net.sf.ehcache.config.generator.model.XMLGeneratorVisitor;
import net.sf.ehcache.config.generator.model.XMLGeneratorVisitor.OutputBehavior;
import net.sf.ehcache.config.generator.model.elements.CacheConfigurationElement;
import net.sf.ehcache.config.generator.model.elements.ConfigurationElement;
/**
* Utility class with static methods for generating configuration texts in different ways based on input
*
* <p />
*
* @author <a href="mailto:asanoujam@terracottatech.com">Abhishek Sanoujam</a>
*
*/
public abstract class ConfigurationUtil {
/**
* Generates Configuration text from a {@link Configuration}
*
* @param configuration
* the configuration
* @return text representing the {@link Configuration}
*/
public static String generateCacheManagerConfigurationText(Configuration configuration) {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
PrintWriter out = new PrintWriter(baos);
XMLGeneratorVisitor configGenerator = new XMLGeneratorVisitor(out);
configGenerator.disableOutputBehavior(OutputBehavior.OUTPUT_OPTIONAL_ATTRIBUTES_WITH_DEFAULT_VALUES);
visitConfiguration(configuration, configGenerator);
out.flush();
out.close();
return baos.toString();
}
/**
* package protected access so that tests can have access
*
* @param configuration
* @param visitor
*/
static void visitConfiguration(Configuration configuration, NodeElementVisitor visitor) {
ConfigurationElement configElement = new ConfigurationElement(configuration);
configElement.accept(visitor);
}
/**
* Generates configuration text for a {@link CacheConfiguration}
*
* @param cacheConfiguration
* the {@link CacheConfiguration}
* @return text representing the {@link CacheConfiguration}
*/
public static String generateCacheConfigurationText(CacheConfiguration cacheConfiguration) {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
PrintWriter out = new PrintWriter(baos);
XMLGeneratorVisitor configGenerator = new XMLGeneratorVisitor(out);
configGenerator.disableOutputBehavior(OutputBehavior.OUTPUT_OPTIONAL_ATTRIBUTES_WITH_DEFAULT_VALUES);
visitCacheConfiguration(cacheConfiguration, configGenerator);
out.flush();
out.close();
return baos.toString();
}
/**
* package protected access so that tests can have access
*
* @param cacheConfiguration
* @param configGenerator
*/
static void visitCacheConfiguration(CacheConfiguration cacheConfiguration, NodeElementVisitor configGenerator) {
CacheConfigurationElement element = new CacheConfigurationElement(null, cacheConfiguration);
element.accept(configGenerator);
}
}