JsonDeserializer.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.Iterator;

import org.openspcoop2.utils.UtilsException;
import org.openspcoop2.utils.json.JSONUtils;

import com.fasterxml.jackson.databind.node.ObjectNode;

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

    private JSONUtils jsonUtils;
    
    public JsonDeserializer() {
        this(false);
    }
    public JsonDeserializer(boolean generateTypeBlank) {
        super(generateTypeBlank);
        this.jsonUtils = JSONUtils.getInstance();
    }
    
    public ProblemRFC7807 fromString(String problemString) throws UtilsException {
        return fromString(problemString, false);
    }
    public ProblemRFC7807 fromString(String problemString, boolean throwExceptionIfUnsupportedCustomClaim) throws UtilsException {
        ObjectNode problemNode = (ObjectNode) this.jsonUtils.getAsNode(problemString);
        ProblemRFC7807 p = new ProblemRFC7807();
        p.setRaw(problemString);
        return this._fromNode(p, problemNode, throwExceptionIfUnsupportedCustomClaim);
    }
    public ProblemRFC7807 fromByteArray(byte[] problemByteArray) throws UtilsException {
        return fromByteArray(problemByteArray, false);
    }
    public ProblemRFC7807 fromByteArray(byte[] problemByteArray, boolean throwExceptionIfUnsupportedCustomClaim) throws UtilsException {
        ObjectNode problemNode = (ObjectNode) this.jsonUtils.getAsNode(problemByteArray);
        ProblemRFC7807 p = new ProblemRFC7807();
        p.setRaw(new String(problemByteArray));
        return this._fromNode(p, problemNode, throwExceptionIfUnsupportedCustomClaim);
    }
    public ProblemRFC7807 fromNode(ObjectNode problemNode) throws UtilsException {
        return this._fromNode(null, problemNode, false);
    }
    public ProblemRFC7807 fromNode(ObjectNode problemNode, boolean throwExceptionIfUnsupportedCustomClaim) throws UtilsException {
        return this._fromNode(null, problemNode, throwExceptionIfUnsupportedCustomClaim);
    }
    private ProblemRFC7807 _fromNode(ProblemRFC7807 problemParam, ObjectNode problemNode,  boolean throwExceptionIfUnsupportedCustomClaim) throws UtilsException {
        
        ProblemRFC7807 problem = null;
        if(problemParam!=null) {
            problem = problemParam;
        }
        else {
            problem = new ProblemRFC7807();
        }
        
        Iterator<String> it = problemNode.fieldNames();
        while (it.hasNext()) {
            String name = it.next();
            Object value = problemNode.get(name);
            
            super.set(problem, name, value, throwExceptionIfUnsupportedCustomClaim);
        }

        if(problem.getRaw()==null) {
            problem.setRaw(this.jsonUtils.toString(problemNode));
        }
        
        return problem;
    }
    
}