XmlDeserializer.java

/*
 * GovWay - A customizable API Gateway 
 * https://govway.org
 * 
 * Copyright (c) 2005-2025 Link.it srl (https://link.it). 
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 3, as published by
 * the Free Software Foundation.
 *
 * This program 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 for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

package org.openspcoop2.utils.rest.problem;

import java.util.List;

import org.openspcoop2.utils.UtilsException;
import org.openspcoop2.utils.xml.XMLUtils;
import org.w3c.dom.Element;
import org.w3c.dom.Node;

/**
 * XmlDeserializer
 *
 * @author Poli Andrea (apoli@link.it)
 * @author $Author$
 * @version $Rev$, $Date$
 */
public class XmlDeserializer extends AbstractDeserializer {

    private XMLUtils xmlUtils;
    
    public XmlDeserializer() {
        this(false);
    }
    public XmlDeserializer(boolean generateTypeBlank) {
        super(generateTypeBlank);
        this.xmlUtils = XMLUtils.getInstance();
    }
    
    public boolean isProblemRFC7807(String problemString) {
        Element problemNode = null;
        try {
            problemNode = this.xmlUtils.newElement(problemString.getBytes());
        }catch(Exception e) {
            return false;
        }
        return this.isProblemRFC7807(problemNode);
    }
    public boolean isProblemRFC7807(byte[] problemByteArray) {
        Element problemNode = null;
        try {
            problemNode = this.xmlUtils.newElement(problemByteArray);
        }catch(Exception e) {
            return false;
        }
        return this.isProblemRFC7807(problemNode);
    }
    public boolean isProblemRFC7807(Node problemNode) {
        return problemNode!=null && 
                ProblemConstants.XML_PROBLEM_DETAILS_RFC_7807_LOCAL_NAME.equals(problemNode.getLocalName()) &&
                ProblemConstants.XML_PROBLEM_DETAILS_RFC_7807_NAMESPACE.equals(problemNode.getNamespaceURI());
    }
    
    public ProblemRFC7807 fromString(String problemString) throws UtilsException {
        return fromString(problemString, false);
    }
    public ProblemRFC7807 fromString(String problemString, boolean throwExceptionIfUnsupportedCustomClaim) throws UtilsException {
        Element problemNode = null;
        try {
            problemNode = this.xmlUtils.newElement(problemString.getBytes());
        }catch(Exception e) {
            throw new UtilsException(e.getMessage(),e);
        }
        ProblemRFC7807 p = new ProblemRFC7807();
        p.setRaw(problemString);
        return this._fromNode(p, problemNode, true, throwExceptionIfUnsupportedCustomClaim);
    }
    public ProblemRFC7807 fromByteArray(byte[] problemByteArray) throws UtilsException {
        return fromByteArray(problemByteArray, false);
    }
    public ProblemRFC7807 fromByteArray(byte[] problemByteArray, boolean throwExceptionIfUnsupportedCustomClaim) throws UtilsException {
        Element problemNode = null;
        try {
            problemNode = this.xmlUtils.newElement(problemByteArray);
        }catch(Exception e) {
            throw new UtilsException(e.getMessage(),e);
        }
        ProblemRFC7807 p = new ProblemRFC7807();
        p.setRaw(new String(problemByteArray));
        return this._fromNode(p, problemNode, true, throwExceptionIfUnsupportedCustomClaim);
    }
    public ProblemRFC7807 fromNode(Node problemNode) throws UtilsException {
        return this._fromNode(null, problemNode, true, false);
    }
    public ProblemRFC7807 fromNode(Node problemNode, boolean throwExceptionIfUnsupportedCustomClaim) throws UtilsException {
        return this._fromNode(null, problemNode, true, throwExceptionIfUnsupportedCustomClaim);
    }
    public ProblemRFC7807 fromNode(Node problemNode, boolean setRaw, boolean throwExceptionIfUnsupportedCustomClaim) throws UtilsException {
        return this._fromNode(null, problemNode, setRaw, throwExceptionIfUnsupportedCustomClaim);
    }
    private ProblemRFC7807 _fromNode(ProblemRFC7807 problemParam, Node problemNode, boolean setRaw,  boolean throwExceptionIfUnsupportedCustomClaim) throws UtilsException {
        
        ProblemRFC7807 problem = null;
        if(problemParam!=null) {
            problem = problemParam;
        }
        else {
            problem = new ProblemRFC7807();
        }
        
        List<Node> list = this.xmlUtils.getNotEmptyChildNodes(problemNode);
        for (Node node : list) {
            
            String name = node.getLocalName();
            if(name==null) {
                name = node.getNodeName();
            }
            Object value = null;
            try {
                value = node.getTextContent();
            }catch(Throwable e) {
                if(e instanceof java.lang.AbstractMethodError) { // axis per test
                    value = node.getNodeValue();
                    if(value==null) {
                        if(node.getChildNodes()!=null) {
                            value = ((org.w3c.dom.Text)node.getChildNodes().item(0)).getData();
                        }
                    }
                }
                else {
                    throw new UtilsException(e.getMessage(),e);
                }
            }
            
            super.set(problem, name, value,  throwExceptionIfUnsupportedCustomClaim);
        }

        if(setRaw && problem.getRaw()==null) {
            try {
                problem.setRaw(this.xmlUtils.toString(problemNode));
            }catch(Exception e) {
                throw new UtilsException(e.getMessage(), e);
            }
        }
        
        return problem;
    }
    
}