Java tutorial
/* * ==================================================================== * This file is part of the ebXML Registry by Icar Cnr v3.2 * ("eRICv32" in the following disclaimer). * * "eRICv32" is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * "eRICv32" 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 Version 3 * along with "eRICv32". If not, see <http://www.gnu.org/licenses/>. * * eRICv32 is a forked, derivative work, based on: * - freebXML Registry, a royalty-free, open source implementation of the ebXML Registry standard, * which was published under the "freebxml License, Version 1.1"; * - ebXML OMAR v3.2 Edition, published under the GNU GPL v3 by S. Krushe & P. Arwanitis. * * All derivative software changes and additions are made under * * Copyright (C) 2013 Ing. Antonio Messina <messina@pa.icar.cnr.it> * * This software consists of voluntary contributions made by many * individuals on behalf of the freebxml Software Foundation. For more * information on the freebxml Software Foundation, please see * "http://www.freebxml.org/". * * This product includes software developed by the Apache Software * Foundation (http://www.apache.org/). * * ==================================================================== */ package it.cnr.icar.eric.server.persistence.rdb; import it.cnr.icar.eric.server.common.ServerRequestContext; import it.cnr.icar.eric.server.util.ServerResourceBundle; import java.sql.ResultSet; import java.sql.SQLException; import java.util.Iterator; import java.util.List; import javax.xml.bind.JAXBException; import javax.xml.registry.RegistryException; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.oasis.ebxml.registry.bindings.rim.InternationalStringType; import org.oasis.ebxml.registry.bindings.rim.ObjectRefType; import org.oasis.ebxml.registry.bindings.rim.RegistryObjectType; import org.oasis.ebxml.registry.bindings.rim.ServiceBindingType; import org.oasis.ebxml.registry.bindings.rim.SpecificationLinkType; /** * Represents a link or reference to a technical specification used within a SpecificationLinkBinding. * It serves the same purpose as the union of tModelInstanceInfo and instanceDetails in * UDDI. * * <p><DL><DT><B>Capability Level: 0 </B><DD>This interface is required to be implemented by JAXR Providers at or above capability level 0.</DL> * * @see <{Concept}> * @author Farrukh S. Najmi */ class SpecificationLinkDAO extends RegistryObjectDAO { private static final Log log = LogFactory.getLog(SpecificationLinkDAO.class); /** * Use this constructor only. */ SpecificationLinkDAO(ServerRequestContext context) { super(context); } public static String getTableNameStatic() { return "SpecificationLink"; } public String getTableName() { return getTableNameStatic(); } protected void deleteComposedObjects(Object object) throws RegistryException { RegistryObjectType ro = (RegistryObjectType) object; super.deleteComposedObjects(ro); //Delete description atribute for the specified objects UsageDescriptionDAO usageDescriptionDAO = new UsageDescriptionDAO(context); usageDescriptionDAO.setParent(ro); usageDescriptionDAO.deleteByParent(); UsageParameterDAO usageParameterDAO = new UsageParameterDAO(context); usageParameterDAO.setParent(ro); usageParameterDAO.deleteByParent(); } protected void insertComposedObjects(Object object) throws RegistryException { RegistryObjectType ro = (RegistryObjectType) object; super.insertComposedObjects(ro); SpecificationLinkType specLink = (SpecificationLinkType) ro; String id = specLink.getId(); UsageDescriptionDAO usageDescriptionDAO = new UsageDescriptionDAO(context); usageDescriptionDAO.insert(id, specLink.getUsageDescription()); UsageParameterDAO usageParameterDAO = new UsageParameterDAO(context); usageParameterDAO.insert(id, specLink.getUsageParameter()); } /** * Returns the SQL fragment string needed by insert or update statements * within insert or update method of sub-classes. This is done to avoid code * duplication. */ protected String getSQLStatementFragment(Object ro) throws RegistryException { SpecificationLinkType specLink = (SpecificationLinkType) ro; String stmtFragment = null; String serviceBinding = specLink.getServiceBinding(); if (serviceBinding == null) { if (parent != null) { serviceBinding = ((ServiceBindingType) parent).getId(); } else { throw new RegistryException(ServerResourceBundle.getInstance().getString( "message.specificationLinkHasNoParentServiceBinding", new Object[] { specLink.getId() })); } } String specificationObject = specLink.getSpecificationObject(); if (specificationObject == null) { throw new RegistryException(ServerResourceBundle.getInstance().getString( "message.specificationLinkHasNoPreentSpecificationLink", new Object[] { specLink.getId() })); } if (action == DAO_ACTION_INSERT) { stmtFragment = "INSERT INTO SpecificationLink " + super.getSQLStatementFragment(ro) + ", '" + serviceBinding + "', '" + specificationObject + "' ) "; } else if (action == DAO_ACTION_UPDATE) { stmtFragment = "UPDATE SpecificationLink SET " + super.getSQLStatementFragment(ro) + ", serviceBinding='" + serviceBinding + "', specificationObject='" + specificationObject + "' WHERE id = '" + ((RegistryObjectType) ro).getId() + "' "; } else if (action == DAO_ACTION_DELETE) { stmtFragment = super.getSQLStatementFragment(ro); } return stmtFragment; } /* * Gets the column name that is foreign key ref into parent table. * Must be overridden by derived class if it is not 'parent' */ protected String getParentAttribute() { return "serviceBinding"; } protected void loadObject(Object obj, ResultSet rs) throws RegistryException { if (!(obj instanceof SpecificationLinkType)) { throw new RegistryException(ServerResourceBundle.getInstance() .getString("message.SpecificationLinkExpected", new Object[] { obj })); } SpecificationLinkType ebSpecificationLinkType = (SpecificationLinkType) obj; super.loadObject(ebSpecificationLinkType, rs); try { String specificationObjectId = rs.getString("specificationObject"); ebSpecificationLinkType.setSpecificationObject(specificationObjectId); ObjectRefType ebObjectRefType = bu.rimFac.createObjectRefType(); ebObjectRefType.setId(specificationObjectId); context.getObjectRefs().add(ebObjectRefType); String serviceBindingId = rs.getString("serviceBinding"); if (serviceBindingId != null) { ObjectRefType ebServiceBindingObjectRefType = bu.rimFac.createObjectRefType(); context.getObjectRefs().add(ebServiceBindingObjectRefType); ebServiceBindingObjectRefType.setId(serviceBindingId); ebSpecificationLinkType.setServiceBinding(serviceBindingId); } String specLinkId = rs.getString("id"); if (specLinkId != null) { UsageDescriptionDAO usageDescriptionDAO = new UsageDescriptionDAO(context); usageDescriptionDAO.setParent(specLinkId); InternationalStringType usagesDescription = usageDescriptionDAO .getUsageDescriptionByParent(specLinkId); if (usagesDescription != null) { ebSpecificationLinkType.setUsageDescription(usagesDescription); } UsageParameterDAO usageParameterDAO = new UsageParameterDAO(context); usageParameterDAO.setParent(specLinkId); List<String> usageParameters = usageParameterDAO.getUsageParametersByParent(specLinkId); if (usageParameters != null) { Iterator<String> iter = usageParameters.iterator(); while (iter.hasNext()) { String usageParam = iter.next(); ebSpecificationLinkType.getUsageParameter().add(usageParam); } } } } catch (SQLException e) { log.error(ServerResourceBundle.getInstance().getString("message.CaughtException1"), e); throw new RegistryException(e); } } /** * Creates an unitialized binding object for the type supported by this DAO. */ Object createObject() throws JAXBException { SpecificationLinkType ebSpecificationLinkType = bu.rimFac.createSpecificationLinkType(); return ebSpecificationLinkType; } }