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/*
* Copyright 2003 - 2012 The eFaps Team
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* Revision: $Rev: 7659 $
* Last Changed: $Date: 2012-06-13 23:23:03 -0500 (Wed, 13 Jun 2012) $
* Last Changed By: $Author: [email protected] $
*/
package org.efaps.importer;
import java.io.File;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import org.apache.commons.digester3.Digester;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.xml.sax.SAXException;
/**
* Class which contains the method to launch the import of Data into a efaps
* connected Database.
*
* @author The eFaps Team
* @version $Id: DataImport.java 7659 2012-06-14 04:23:03Z [email protected] $
*/
public class DataImport
{
/**
* Logging instance used to give logging information of this class.
*/
private static final Logger LOG = LoggerFactory.getLogger(DataImport.class);
/**
* Contains the root object which is the base for all other objects.
*/
private RootObject root = null;
/**
* default constructor.
*/
public DataImport()
{
super();
}
/**
* @param _xml name and path of the XML file
* @throws MalformedURLException if _xml could not be
* converted into an URL
* @see #readFile(File)
*/
public void readFile(final String _xml)
throws MalformedURLException
{
readFile(new File(_xml));
}
/**
* @param _xml name and path of the XML file
* @throws MalformedURLException if _xml could not be
* converted into an URL
* @see #readFile(URL)
*/
public void readFile(final File _xml)
throws MalformedURLException
{
DataImport.readFile(_xml.toURI().toURL());
}
/**
* Method that uses the {@link org.apache.commons.digester.Digester} to
* read the objects from the given XML-File an build the java-Objects in a
* parent-child hierarchy.
*
* @param _url URL to the XML-File
* @return data import instance
*/
public static DataImport readFile(final URL _url)
{
DataImport ret = new DataImport();
try {
final Digester digester = new Digester();
digester.setValidating(false);
digester.addObjectCreate("import", RootObject.class);
final String def = "import/definition";
// Read the Definitions
digester.addCallMethod(def + "/date", "setDateFormat", 1);
digester.addCallParam(def + "/date", 0, "format");
// Read OrderObject
digester.addFactoryCreate(def + "/order", OrderObjectBuilder.class, false);
digester.addCallMethod(def + "/order/attribute",
"addAttribute", 3, new Class[] { Integer.class, String.class, String.class });
digester.addCallParam(def + "/order/attribute", 0, "index");
digester.addCallParam(def + "/order/attribute", 1, "name");
digester.addCallParam(def + "/order/attribute", 2, "criteria");
digester.addSetNext(def + "/order", "addOrder", "org.efaps.importer.OrderObject");
// read default object
digester.addObjectCreate(def + "/default", DefaultObject.class);
digester.addCallMethod(def + "/default", "addDefault", 3);
digester.addCallParam(def + "/default", 0, "type");
digester.addCallParam(def + "/default", 1, "name");
digester.addCallParam(def + "/default", 2);
digester.addObjectCreate(def + "/default/linkattribute", ForeignObject.class);
digester.addCallMethod(def + "/default/linkattribute", "setLinkAttribute", 3);
digester.addCallParam(def + "/default/linkattribute", 0, "name");
digester.addCallParam(def + "/default/linkattribute", 1, "type");
digester.addCallParam(def + "/default/linkattribute", 2, "select");
digester.addCallMethod(def + "/default/linkattribute/queryattribute", "addAttribute", 2);
digester.addCallParam(def + "/default/linkattribute/queryattribute", 0, "name");
digester.addCallParam(def + "/default/linkattribute/queryattribute", 1);
digester.addSetNext(def + "/default/linkattribute", "addLink", "org.efaps.importer.ForeignObject");
// create the objects
digester.addFactoryCreate("*/object", new InsertObjectBuilder(), false);
digester.addCallMethod("*/object/attribute", "addAttribute", 3);
digester.addCallParam("*/object/attribute", 0, "name");
digester.addCallParam("*/object/attribute", 1);
digester.addCallParam("*/object/attribute", 2, "unique");
digester.addCallMethod("*/object/file", "setCheckinObject", 2);
digester.addCallParam("*/object/file", 0, "name");
digester.addCallParam("*/object/file", 1, "url");
digester.addCallMethod("*/object/parentattribute", "setParentAttribute", 2);
digester.addCallParam("*/object/parentattribute", 0, "name");
digester.addCallParam("*/object/parentattribute", 1, "unique");
digester.addCallMethod("*/object/linkattribute", "addUniqueAttribute", 2);
digester.addCallParam("*/object/linkattribute", 0, "unique");
digester.addCallParam("*/object/linkattribute", 1, "name");
digester.addSetNext("*/object", "addChild", "org.efaps.importer.InsertObject");
digester.addObjectCreate("*/object/linkattribute", ForeignObject.class);
digester.addCallMethod("*/object/linkattribute", "setLinkAttribute", 3);
digester.addCallParam("*/object/linkattribute", 0, "name");
digester.addCallParam("*/object/linkattribute", 1, "type");
digester.addCallParam("*/object/linkattribute", 2, "select");
digester.addCallMethod("*/object/linkattribute/queryattribute", "addAttribute", 2);
digester.addCallParam("*/object/linkattribute/queryattribute", 0, "name");
digester.addCallParam("*/object/linkattribute/queryattribute", 1);
digester.addSetNext("*/object/linkattribute", "addLink", "org.efaps.importer.ForeignObject");
ret.root = (RootObject) digester.parse(_url);
if (!ret.hasData()) {
ret = null;
}
} catch (final IOException e) {
DataImport.LOG.error(_url.toString() + " is not readable", e);
} catch (final SAXException e) {
DataImport.LOG.error(_url.toString() + " seems to be invalide XML", e);
}
return ret;
}
/**
* Starts the insertion of the objects into eFaps.
*/
public void updateInDB()
{
if (hasData()) {
this.root.dbAddChilds();
}
}
/**
* Has the root received data from the digester that must be inserted?
*
* @return true if there is Data; otherwise false
*/
public boolean hasData()
{
return this.root != null;
}
}
