Java tutorial
/** * Directory WAT * Company to JSON tools * Copyright (C) 06/05/14 echinopsii * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License as * published by the Free Software Foundation, either version 3 of the * License, or (at your option) any later version. * * 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 Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ package net.echinopsii.ariane.community.core.directory.wat.json.ds.organisational; import com.fasterxml.jackson.core.JsonEncoding; import com.fasterxml.jackson.core.JsonGenerator; import net.echinopsii.ariane.community.core.directory.base.model.organisational.Application; import net.echinopsii.ariane.community.core.directory.base.model.organisational.Company; import net.echinopsii.ariane.community.core.directory.base.model.technical.system.OSType; import net.echinopsii.ariane.community.core.directory.wat.DirectoryBootstrap; import java.io.ByteArrayOutputStream; import java.io.IOException; import java.util.HashSet; import java.util.Iterator; /** * Our own object to JSON tools as : * - we can have cycle in object graphs * - we still want to have references to linked objects through IDs (and so we don't want @XmlTransient or @JsonIgnore) */ public class CompanyJSON { public final static String CMP_ID = "companyID"; public final static String CMP_VERSION = "companyVersion"; public final static String CMP_NAME = "companyName"; public final static String CMP_DESCRIPTION = "companyDescription"; public final static String CMP_APP_ID = "companyApplicationsID"; public final static String CMP_OST_ID = "companyOSTypesID"; public final static void company2JSON(Company company, JsonGenerator jgenerator) throws IOException { jgenerator.writeStartObject(); jgenerator.writeNumberField(CMP_ID, company.getId()); jgenerator.writeNumberField(CMP_VERSION, company.getVersion()); jgenerator.writeStringField(CMP_NAME, company.getName()); jgenerator.writeStringField(CMP_DESCRIPTION, company.getDescription()); jgenerator.writeArrayFieldStart(CMP_APP_ID); for (Application app : company.getApplications()) jgenerator.writeNumber(app.getId()); jgenerator.writeEndArray(); jgenerator.writeArrayFieldStart(CMP_OST_ID); for (OSType ost : company.getOsTypes()) jgenerator.writeNumber(ost.getId()); jgenerator.writeEndArray(); jgenerator.writeEndObject(); } public final static void oneCompany2JSON(Company company, ByteArrayOutputStream outStream) throws IOException { JsonGenerator jgenerator = DirectoryBootstrap.getjFactory().createGenerator(outStream, JsonEncoding.UTF8); CompanyJSON.company2JSON(company, jgenerator); jgenerator.close(); } public final static void manyCompanies2JSON(HashSet<Company> companies, ByteArrayOutputStream outStream) throws IOException { JsonGenerator jgenerator = DirectoryBootstrap.getjFactory().createGenerator(outStream, JsonEncoding.UTF8); jgenerator.writeStartObject(); jgenerator.writeArrayFieldStart("companies"); Iterator<Company> iter = companies.iterator(); while (iter.hasNext()) { Company current = iter.next(); CompanyJSON.company2JSON(current, jgenerator); } jgenerator.writeEndArray(); jgenerator.writeEndObject(); jgenerator.close(); } }