org.smallmind.web.jersey.json.XmlAdapterParamConverterProvider Maven / Gradle / Ivy
/*
* Copyright (c) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 David Berkman
*
* This file is part of the SmallMind Code Project.
*
* The SmallMind Code Project is free software, you can redistribute
* it and/or modify it under either, at your discretion...
*
* 1) The terms of GNU Affero General Public License as published by the
* Free Software Foundation, either version 3 of the License, or (at
* your option) any later version.
*
* ...or...
*
* 2) The terms of the Apache License, Version 2.0.
*
* The SmallMind Code Project is distributed in the hope that it will
* be useful, but WITHOUT ANY WARRANTY; without even the implied warranty
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License or Apache License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* and the Apache License along with the SmallMind Code Project. If not, see
* .
*
* Additional permission under the GNU Affero GPL version 3 section 7
* ------------------------------------------------------------------
* If you modify this Program, or any covered work, by linking or
* combining it with other code, such other code is not for that reason
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package org.smallmind.web.jersey.json;
import java.lang.annotation.Annotation;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Type;
import java.util.concurrent.ConcurrentHashMap;
import javax.ws.rs.ext.ParamConverter;
import javax.ws.rs.ext.ParamConverterProvider;
import javax.xml.bind.annotation.adapters.XmlAdapter;
import javax.xml.bind.annotation.adapters.XmlJavaTypeAdapter;
public class XmlAdapterParamConverterProvider implements ParamConverterProvider {
private final ConcurrentHashMap, ParamConverter> CONVERTER_MAP = new ConcurrentHashMap<>();
@Override
public ParamConverter getConverter (final Class rawType, final Type genericType, final Annotation[] annotations) {
for (Annotation annotation : annotations) {
if (annotation.annotationType().equals(XmlJavaTypeAdapter.class)) {
Class xmlAdapterClass;
if ((xmlAdapterClass = ((XmlJavaTypeAdapter)annotation).value()) != null) {
ParamConverter paramConverter;
if ((paramConverter = CONVERTER_MAP.get(xmlAdapterClass)) == null) {
synchronized (CONVERTER_MAP) {
if ((paramConverter = CONVERTER_MAP.get(xmlAdapterClass)) == null) {
try {
CONVERTER_MAP.put(xmlAdapterClass, new XmlAdapterParamConverter(xmlAdapterClass.getConstructor().newInstance()));
} catch (NoSuchMethodException | InstantiationException | IllegalAccessException | InvocationTargetException exception) {
throw new XmlAdapterParamConversionException(exception);
}
}
}
}
return (ParamConverter)paramConverter;
}
}
}
return null;
}
private static class XmlAdapterParamConverter implements ParamConverter {
private final XmlAdapter xmlAdapter;
public XmlAdapterParamConverter (XmlAdapter xmlAdapter) {
this.xmlAdapter = xmlAdapter;
}
@Override
public T fromString (String value) {
try {
return xmlAdapter.unmarshal(value);
} catch (Exception exception) {
throw new XmlAdapterParamConversionException(exception);
}
}
@Override
public String toString (T value) {
try {
return xmlAdapter.marshal(value);
} catch (Exception exception) {
throw new XmlAdapterParamConversionException(exception);
}
}
}
}