org.apache.struts2.rest.handler.JuneauXmlHandler Maven / Gradle / Ivy
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* 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 org.apache.struts2.rest.handler;
import com.opensymphony.xwork2.ActionInvocation;
import org.apache.commons.beanutils.BeanUtils;
import org.apache.juneau.parser.ParseException;
import org.apache.juneau.serializer.SerializeException;
import org.apache.juneau.xml.XmlDocSerializer;
import org.apache.juneau.xml.XmlParser;
import org.apache.juneau.xml.XmlSerializer;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import java.io.IOException;
import java.io.Reader;
import java.io.Writer;
import java.lang.reflect.InvocationTargetException;
/**
* Handles XML content using Apache Juneau
* http://juneau.apache.org/#marshall.html
*/
public class JuneauXmlHandler extends AbstractContentTypeHandler {
private static final Logger LOG = LogManager.getLogger(JuneauXmlHandler.class);
private static final String DEFAULT_CONTENT_TYPE = "application/xml";
private final XmlParser parser = XmlParser.DEFAULT;
private final XmlSerializer serializer = XmlDocSerializer.DEFAULT;
public void toObject(ActionInvocation invocation, Reader in, Object target) throws IOException {
LOG.debug("Converting input into an object of: {}", target.getClass().getName());
try {
Object result = parser.parse(in, target.getClass());
BeanUtils.copyProperties(target, result);
} catch (ParseException | IllegalAccessException | InvocationTargetException e) {
throw new IOException(e);
}
}
public String fromObject(ActionInvocation invocation, Object obj, String resultCode, Writer stream) throws IOException {
LOG.debug("Converting an object of {} into string", obj.getClass().getName());
try {
serializer
.builder()
.locale(invocation.getInvocationContext().getLocale())
.build()
.serialize(obj, stream);
return null;
} catch (SerializeException e) {
throw new IOException(e);
}
}
public String getContentType() {
return DEFAULT_CONTENT_TYPE;
}
public String getExtension() {
return "xml";
}
}