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/**
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* Copyright (C) 2007 EDIT
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* European Distributed Institute of Taxonomy
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* http://www.e-taxonomy.eu
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*
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* The contents of this file are subject to the Mozilla Public License Version 1.1
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* See LICENSE.TXT at the top of this package for the full license terms.
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*/
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package eu.etaxonomy.cdm.remote.dto.assembler.converter;
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import java.net.MalformedURLException;
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import eu.etaxonomy.cdm.common.URI;
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import java.net.URISyntaxException;
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import java.net.URL;
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import javax.servlet.ServletContext;
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import org.apache.commons.lang.StringUtils;
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import org.apache.log4j.Logger;
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import org.dozer.CustomConverter;
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import org.dozer.MappingException;
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import org.springframework.web.context.ServletContextAware;
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import eu.etaxonomy.cdm.model.common.IdentifiableEntity;
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import eu.etaxonomy.cdm.model.common.LSID;
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public class IdentifierConverter implements CustomConverter, ServletContextAware{
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private ServletContext servletContext;
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public static final Logger logger = Logger.getLogger(IdentifierConverter.class);
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@SuppressWarnings("unchecked")
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public Object convert(Object destination, Object source, Class destClass, Class sourceClass) {
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if (source == null) {
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return null;
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}
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if (source instanceof IdentifiableEntity) {
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IdentifiableEntity identifiableEntity = (IdentifiableEntity)source;
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URI uri = null;
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try {
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if(identifiableEntity.getLsid() != null && identifiableEntity.getLsid().getLsid() != null){
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uri = new URI(((LSID)source).getLsid());
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} else {
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StringBuilder stringBuilder = new StringBuilder();
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if(servletContext != null){
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stringBuilder.append(servletContext.getContextPath()).append('/');
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} else {
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//happens only during testing
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logger.warn("No ServletContext configured in Unitils");
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}
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String[] classNameTokens = StringUtils.split(source.getClass().getName(), '.');
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stringBuilder.append(classNameTokens[classNameTokens.length - 2]).append('/');
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stringBuilder.append(identifiableEntity.getUuid().toString());
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uri = new URI(stringBuilder.toString());
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}
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} catch (URISyntaxException e) {
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throwMappingException(destination, source);
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}
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if(uri != null){
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if(String.class.isAssignableFrom(destClass)){
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return uri.toString();
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} else if(URL.class.isAssignableFrom(destClass)){
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try {
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return uri.toURL();
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} catch (MalformedURLException e) {
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logger.error(e);
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}
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} else if(URI.class.isAssignableFrom(destClass)){
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return uri;
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} else {
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throwMappingException(destination, source);
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}
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}
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} else {
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throwMappingException(destination, source);
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}
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return null;
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}
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private void throwMappingException(Object destination, Object source) {
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throw new MappingException("Converter TestCustomConverter used incorrectly. Arguments passed in were:"
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+ destination + " and " + source);
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}
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/* (non-Javadoc)
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* @see org.springframework.web.context.ServletContextAware#setServletContext(javax.servlet.ServletContext)
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*/
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@Override
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public void setServletContext(ServletContext servletContext) {
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this.servletContext = servletContext;
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}
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}
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