OpenSPCoop2Message_json_impl.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.message.rest;
- import java.io.ByteArrayOutputStream;
- import java.io.InputStream;
- import java.io.OutputStream;
- import java.io.OutputStreamWriter;
- import java.io.Writer;
- import org.openspcoop2.message.OpenSPCoop2MessageFactory;
- import org.openspcoop2.message.OpenSPCoop2RestJsonMessage;
- import org.openspcoop2.message.exception.MessageException;
- import org.openspcoop2.message.exception.MessageNotSupportedException;
- import org.openspcoop2.utils.CopyStream;
- import org.openspcoop2.utils.io.DumpByteArrayOutputStream;
- import org.openspcoop2.utils.json.JSONUtils;
- import org.openspcoop2.utils.json.JsonPathExpressionEngine;
- import org.openspcoop2.utils.json.JsonPathReturnType;
- import org.openspcoop2.utils.transport.http.ContentTypeUtilities;
- import org.openspcoop2.utils.transport.http.HttpConstants;
- import com.fasterxml.jackson.databind.JsonNode;
- import net.minidev.json.JSONObject;
- import net.minidev.json.JSONStyle;
- /**
- * Implementazione dell'OpenSPCoop2Message utilizzabile per messaggi json
- *
- * @author Andrea Poli (poli@link.it)
- * @author $Author$
- * @version $Rev$, $Date$
- */
- public class OpenSPCoop2Message_json_impl extends AbstractBaseOpenSPCoop2RestMessage<String> implements OpenSPCoop2RestJsonMessage {
- public OpenSPCoop2Message_json_impl(OpenSPCoop2MessageFactory messageFactory) {
- super(messageFactory);
- this.supportReadOnly = false; // il contenuto e' gia una stringa.
- }
- public OpenSPCoop2Message_json_impl(OpenSPCoop2MessageFactory messageFactory, InputStream is,String contentType) throws MessageException {
- super(messageFactory, is, contentType);
- this.supportReadOnly = false; // il contenuto e' gia una stringa.
- }
-
- @Override
- protected String buildContent() throws MessageException{
- try{
- //return org.openspcoop2.utils.Utilities.getAsString(this.countingInputStream, this.contentTypeCharsetName);
- ByteArrayOutputStream bout = new ByteArrayOutputStream();
- CopyStream.copy(this._getInputStream(), bout);
- bout.flush();
- bout.close();
- return bout.toString(this.contentTypeCharsetName);
- }catch(Exception e){
- throw new MessageException(e.getMessage(),e);
- }finally {
- try {
- this._getInputStream().close();
- }catch(Exception eClose) {
- // close
- }
- }
- }
- @Override
- protected String buildContent(DumpByteArrayOutputStream contentBuffer) throws MessageException{
- try{
- return contentBuffer.toString(this.contentTypeCharsetName);
- }catch(Exception e){
- throw new MessageException(e.getMessage(),e);
- }
- }
-
- @Override
- protected String buildContentAsString() throws MessageException{
- return this.content;
- }
- @Override
- protected byte[] buildContentAsByteArray() throws MessageException{
- try{
- return this.content.getBytes(this.contentTypeCharsetName);
- }catch(Exception e){
- throw new MessageException(e.getMessage(),e);
- }
- }
- @Override
- protected void serializeContent(OutputStream os, boolean consume) throws MessageException {
- Writer w = null;
- try{
- w = new OutputStreamWriter(os,this.contentTypeCharsetName);
- w.write(this.content);
- w.flush();
- }catch(Exception e){
- throw new MessageException(e.getMessage(),e);
- }finally{
- try{
- if(w!=null){
- w.close();
- }
- }catch(Exception eClose){
- // close
- }
- }
- }
-
- @Override
- public boolean isProblemDetailsForHttpApis_RFC7807() throws MessageException,MessageNotSupportedException {
- try{
- if(this.contentType==null) {
- return false;
- }
- String baseType = ContentTypeUtilities.readBaseTypeFromContentType(this.contentType);
- return HttpConstants.CONTENT_TYPE_JSON_PROBLEM_DETAILS_RFC_7807.equalsIgnoreCase(baseType);
- }catch(Exception e){
- throw new MessageException(e.getMessage(),e);
- }
- }
- @Override
- public void prettyFormatContent() throws MessageException,MessageNotSupportedException{
- try {
- if(this.hasContent()) {
- String content = this.getContent();
- JSONUtils jsonUtils = JSONUtils.getInstance(true);
- JsonNode node = jsonUtils.getAsNode(content);
- this.updateContent(jsonUtils.toString(node));
- }
- }catch(Exception e) {
- throw new MessageException(e.getMessage(),e);
- }
- }
-
- @Override
- public void addSimpleElement(String name, Object value) throws MessageException,MessageNotSupportedException{
- this._processJsonField(true, null, name, value, true, false, false);
- }
- @Override
- public void addSimpleElement(String jsonPath, String name, Object value) throws MessageException,MessageNotSupportedException{
- this._processJsonField(false, jsonPath, name, value, true, false, false);
- }
- @Override
- public void addObjectElement(String name, Object value) throws MessageException,MessageNotSupportedException{
- this._processJsonField(true, null, name, toJSONObject(value), true, false, false);
- }
- @Override
- public void addObjectElement(String jsonPath, String name, Object value) throws MessageException,MessageNotSupportedException{
- this._processJsonField(false, jsonPath, name, toJSONObject(value), true, false, false);
- }
- private net.minidev.json.JSONObject toJSONObject(Object valueParam) throws MessageException {
- net.minidev.json.JSONObject value = null;
- if(valueParam instanceof net.minidev.json.JSONObject) {
- value = (net.minidev.json.JSONObject) valueParam;
- }
- else if(valueParam instanceof String) {
- try {
- value = JsonPathExpressionEngine.getJSONObject((String)valueParam);
- }catch(Exception e) {
- throw new MessageException(e.getMessage(),e);
- }
- }
- else if(valueParam instanceof JsonNode) {
- try {
- value = JsonPathExpressionEngine.getJSONObject((JsonNode)valueParam);
- }catch(Exception e) {
- throw new MessageException(e.getMessage(),e);
- }
- }
- else if(valueParam instanceof InputStream) {
- try {
- value = JsonPathExpressionEngine.getJSONObject((InputStream)valueParam);
- }catch(Exception e) {
- throw new MessageException(e.getMessage(),e);
- }
- }
- else {
- throw new MessageException("Unsupported type '"+valueParam.getClass().getName()+"'");
- }
- return value;
- }
-
- @Override
- public void addArrayElement(String name, Object value) throws MessageException,MessageNotSupportedException{
- this._processJsonField(true, null, name, toJSONArray(value), true, false, false);
- }
- @Override
- public void addArrayElement(String jsonPath, String name, Object value) throws MessageException,MessageNotSupportedException{
- this._processJsonField(false, jsonPath, name, toJSONArray(value), true, false, false);
- }
- private net.minidev.json.JSONArray toJSONArray(Object valueParam) throws MessageException {
- net.minidev.json.JSONArray value = null;
- if(valueParam instanceof net.minidev.json.JSONArray) {
- value = (net.minidev.json.JSONArray) valueParam;
- }
- else if(valueParam instanceof String) {
- try {
- value = JsonPathExpressionEngine.getJSONArray((String)valueParam);
- }catch(Exception e) {
- throw new MessageException(e.getMessage(),e);
- }
- }
- else if(valueParam instanceof JsonNode) {
- try {
- value = JsonPathExpressionEngine.getJSONArray((JsonNode)valueParam);
- }catch(Exception e) {
- throw new MessageException(e.getMessage(),e);
- }
- }
- else if(valueParam instanceof InputStream) {
- try {
- value = JsonPathExpressionEngine.getJSONArray((InputStream)valueParam);
- }catch(Exception e) {
- throw new MessageException(e.getMessage(),e);
- }
- }
- else {
- throw new MessageException("Unsupported type '"+valueParam.getClass().getName()+"'");
- }
- return value;
- }
- @Override
- public void removeElement(String name) throws MessageException,MessageNotSupportedException{
- this._processJsonField(true, null, name, null, false, true, false);
- }
- @Override
- public void removeElement(String jsonPath, String name) throws MessageException,MessageNotSupportedException{
- this._processJsonField(false, jsonPath, name, null, false, true, false);
- }
-
- @Override
- public void replaceValue(String name, Object value) throws MessageException,MessageNotSupportedException{
- this._processJsonField(true, null, name, value, false, false, true);
- }
- @Override
- public void replaceValue(String jsonPath, String name, Object value) throws MessageException,MessageNotSupportedException{
- this._processJsonField(false, jsonPath, name, value, false, false, true);
- }
-
- private void _processJsonField(boolean rootElement, String jsonPath, String name, Object value, boolean add, boolean remove, boolean replaceValue) throws MessageException {
- try {
- if(!this.hasContent()) {
- return;
- }
- JsonPathExpressionEngine engine = new JsonPathExpressionEngine();
- JSONObject rootObject = JsonPathExpressionEngine.getJSONObject(this.getContent());
- Object o = rootObject;
- if(!rootElement) {
- if(jsonPath==null) {
- throw new Exception("JsonPath undefined");
- }
- o = engine.getMatchPattern(rootObject, jsonPath, JsonPathReturnType.JSON_PATH_OBJECT);
- }
- if(o instanceof net.minidev.json.JSONObject) {
- net.minidev.json.JSONObject oNode = (net.minidev.json.JSONObject) o;
- if(add) {
- oNode.appendField(name, value);
- }
- else if(replaceValue) {
- oNode.remove(name);
- oNode.appendField(name, value);
- }
- else {
- oNode.remove(name);
- }
- }
- else if(o instanceof net.minidev.json.JSONArray){
- net.minidev.json.JSONArray arrayNode = (net.minidev.json.JSONArray) o;
- if(arrayNode.size()>0) {
- for (int i = 0; i < arrayNode.size(); i++) {
- Object oNodeArray = arrayNode.get(i);
- if(oNodeArray instanceof net.minidev.json.JSONObject) {
- net.minidev.json.JSONObject oNode = (net.minidev.json.JSONObject) oNodeArray;
- if(add) {
- oNode.appendField(name, value);
- }
- else if(replaceValue) {
- oNode.remove(name);
- oNode.appendField(name, value);
- }
- else {
- oNode.remove(name);
- }
- }
- else {
- throw new Exception("Tipo dell'oggetto individuato tramite jsonPath (posizione array '"+i+"') non consente l'operazione richiesta: "+oNodeArray.getClass().getName());
- }
- }
- }
- }
- else {
- throw new Exception("Tipo dell'oggetto individuato tramite jsonPath non consente l'operazione richiesta: "+o.getClass().getName());
- }
- this.updateContent(rootObject.toJSONString(JSONStyle.NO_COMPRESS));
- }catch(Exception e) {
- throw new MessageException("Operazione fallita (pattern: "+jsonPath+"): "+e.getMessage(),e);
- }
- }
- }