gvsig-projects-pool / org.gvsig.vcsgis / trunk / org.gvsig.vcsgis / org.gvsig.vcsgis.lib / org.gvsig.vcsgis.lib.impl / src / main / java / org / gvsig / vcsgis / lib / server / handlers / CommitHandler.java @ 2728
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/*
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* gvSIG. Desktop Geographic Information System.
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*
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* Copyright (C) 2007-2020 gvSIG Association.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 3
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*
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* For any additional information, do not hesitate to contact us
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* at info AT gvsig.com, or visit our website www.gvsig.com.
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*/
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package org.gvsig.vcsgis.lib.server.handlers; |
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import org.gvsig.vcsgis.lib.PipedIterator; |
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import java.io.IOException; |
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import java.io.InputStream; |
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import java.io.OutputStream; |
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import java.sql.Timestamp; |
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import javax.json.JsonObject; |
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import javax.json.JsonString; |
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import javax.json.JsonValue; |
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import javax.json.stream.JsonParser; |
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import static javax.json.stream.JsonParser.Event.END_ARRAY; |
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import static javax.json.stream.JsonParser.Event.END_OBJECT; |
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import static javax.json.stream.JsonParser.Event.START_ARRAY; |
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import org.apache.commons.io.IOUtils; |
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import org.apache.commons.lang3.StringUtils; |
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import org.apache.commons.lang3.mutable.MutableObject; |
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import org.gvsig.json.Json; |
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import org.gvsig.json.JsonArrayBuilder; |
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import org.gvsig.json.JsonObjectBuilder; |
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import org.gvsig.vcsgis.lib.ChangeImpl; |
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import org.gvsig.vcsgis.lib.EntityEditableImpl; |
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import org.gvsig.vcsgis.lib.SAJParserImpl; |
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import org.gvsig.vcsgis.lib.VCSGisEntityEditable; |
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import org.gvsig.vcsgis.lib.VCSGisChange; |
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import org.gvsig.vcsgis.lib.VCSGisUtils; |
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import org.gvsig.vcsgis.lib.repository.VCSGisRepository; |
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import org.gvsig.vcsgis.lib.repository.requests.VCSGisCommitRequest; |
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import org.gvsig.vcsgis.lib.repository.requests.VCSGisRequest; |
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import static org.gvsig.vcsgis.lib.server.handlers.AbstractVCSGisServertHandler.LOGGER; |
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/**
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*
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* @author gvSIG Team
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*/
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@SuppressWarnings("UseSpecificCatch") |
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public class CommitHandler extends AbstractVCSGisServertHandler { |
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public CommitHandler(VCSGisRepository repository) {
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super(repository, "CommitHandler"); |
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} |
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@Override
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protected void requestProducer(MutableObject<VCSGisRequest>req, InputStream request_contents) throws IOException { |
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LOGGER.debug("===: ["+this.getName()+"] requestProducer 1"); |
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final PipedIterator<VCSGisChange> changesIterator = new PipedIterator<>(); |
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final VCSGisCommitRequest request = this.getRepository().createCommitRequest(); |
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request.add(changesIterator); |
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req.setValue(request); |
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LOGGER.debug("===: ["+this.getName()+"] requestProducer 2"); |
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SAJParserImpl parser = new SAJParserImpl(
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request_contents, |
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new SAJParserImpl.SAJParserHandler() {
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@Override
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public void handle(SAJParserImpl.SAJParserContext context, JsonParser.Event e, Object value) { |
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if( e==null ) { |
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return;
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} |
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switch (e) {
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case END_OBJECT:
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switch(context.getPathName()) {
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case "/Parameters": |
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JsonObject jsonParams = ((javax.json.JsonObjectBuilder)value).build(); |
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if( jsonParams.isNull("EfectiveDate") ) { |
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request.setEfectiveDate(null);
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} else {
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request.setEfectiveDate(Timestamp.valueOf(jsonParams.getString("EfectiveDate"))); |
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} |
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if( jsonParams.isNull("Comment") ) { |
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request.setComment(null);
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} else {
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request.setComment(jsonParams.getString("Comment"));
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} |
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if( !jsonParams.isNull("Entities") ) { |
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for (JsonValue jsonvEntity : jsonParams.getJsonArray("Entities")) { |
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VCSGisEntityEditable entity = new EntityEditableImpl((JsonObject) jsonvEntity);
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request.add(entity); |
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} |
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} |
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if( !jsonParams.isNull("NewEntityCodes") ) { |
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for (JsonValue jsonvEntityCode : jsonParams.getJsonArray("NewEntityCodes")) { |
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request.markAsNew(((JsonString)jsonvEntityCode).getString()); |
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} |
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} |
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notifyRequestConsumers(); |
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break;
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case "/Data/?": |
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// Hemos terminado de generar un elemento del array
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// de datos, construimos un Change y lo adicionamos a la
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// cola de cambios.
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JsonObject jsonChange = ((javax.json.JsonObjectBuilder)value).build(); |
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VCSGisChange change = new ChangeImpl(jsonChange);
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changesIterator.put(change); |
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break;
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} |
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break;
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case END_ARRAY:
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if( "/Data".equals(context.getPathName()) ) { |
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// Marcamos como que ya hemos llegado al final del
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// array de datos.
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changesIterator.close(); |
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} |
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break;
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case START_ARRAY:
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switch(context.getPathName()) {
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case "/Data": |
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// Forzamos que no se cree el array en memoria.
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context.setArrayBuilder(null);
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break;
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} |
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break;
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case START_OBJECT:
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switch(context.getPathName()) {
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case "/Data/?": |
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break;
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} |
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break;
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default:
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break;
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} |
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} |
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} |
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); |
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parser.parse(); |
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LOGGER.debug("===: ["+this.getName()+"] requestProducer 3 notifyRequestConsumers"); |
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notifyRequestConsumers(); |
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LOGGER.debug("===: ["+this.getName()+"] requestProducer 4 return"); |
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} |
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@Override
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protected void responseProducer(VCSGisRequest req, OutputStream response_contents) throws IOException { |
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LOGGER.debug("===: ["+this.getName()+"] responseProducer 1"); |
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final VCSGisCommitRequest request = (VCSGisCommitRequest) req;
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try {
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JsonObjectBuilder builder = Json.createObjectBuilder(); |
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JsonObjectBuilder jsonParams = Json.createObjectBuilder(); |
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jsonParams.add("StatusCode", request.getLastErrorCode());
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jsonParams.add("StatusMessage", request.getLastErrorMessage());
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JsonArrayBuilder jsonEntities = Json.createArrayBuilder(); |
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for (VCSGisEntityEditable entity : request.getChangedLocalEntities()) {
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// jsonEntities.add(entity.toJsonBuilder());
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JsonObject jsonEntity = VCSGisUtils.toJsonBuilder( |
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entity, |
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(String t) -> StringUtils.equalsIgnoreCase(t, VCSGisUtils.ENTITY_FEATURETYPEASJSON)
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).build(); |
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jsonEntities.add(jsonEntity); |
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} |
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jsonParams.add("Entities", jsonEntities);
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builder.add("Parameters", jsonParams);
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LOGGER.debug("===: ["+this.getName()+"] responseProducer 2 notifyResponseConsumers"); |
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notifyResponseConsumers(); |
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LOGGER.debug("===: ["+this.getName()+"] responseProducer 3 write json to response"); |
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IOUtils.write(builder.toString(), response_contents); |
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LOGGER.debug("===: ["+this.getName()+"] responseProducer 4 flush"); |
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response_contents.flush(); |
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LOGGER.debug("===: ["+this.getName()+"] responseProducer 5 return"); |
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} catch (Exception ex) { |
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LOGGER.warn("Can't produce Json data for "+this.getName()+" response.",ex); |
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} finally {
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LOGGER.debug("===: ["+this.getName()+"] responseProducer 6 close response_contents"); |
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IOUtils.closeQuietly(response_contents); |
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LOGGER.debug("===: ["+this.getName()+"] responseProducer 7"); |
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} |
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} |
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} |