/**
* Copyright 2004 The Apache Software Foundation
*
* 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.
*/
package org.apache.lucene.gdata.server.administration;
import java.io.IOException;
import java.io.Reader;
import java.net.URL;
import org.apache.commons.digester.Digester;
import org.apache.lucene.gdata.data.GDataAccount;
import org.apache.lucene.gdata.utils.SimpleSaxErrorHandler;
import org.apache.xerces.parsers.SAXParser;
import org.xml.sax.SAXException;
/**
* Helper class to create {@link org.apache.lucene.gdata.data.GDataAccount}
* instances from a xml stream provided via a {@link Reader} instance.
*
* @author Simon Willnauer
*
*/
public class AccountBuilder {
/**
* Reads the xml from the provided reader and binds the values to the
* @param reader - the reader to read the xml from
* @return - the GDataAccount
* @throws IOException - if an IOException occurs
* @throws SAXException - if the xml can not be parsed by the sax reader
*/
public static GDataAccount buildAccount(final Reader reader) throws IOException,
SAXException {
if (reader == null)
throw new IllegalArgumentException("Reader must not be null");
URL resource = AccountBuilder.class.getResource("/gdata-account.xsd");
if(resource == null)
throw new RuntimeException("can not find xml schema file 'gdata-account.xsd' -- file must be present on the classpath");
String schemaFile = resource.getFile();
GDataAccount account = null;
/*
* Force using apache xerces parser for digester
*/
SAXParser parser = new SAXParser();
parser.setFeature("http://apache.org/xml/features/validation/schema-full-checking",true);
parser.setFeature("http://apache.org/xml/features/validation/schema",true);
parser.setFeature("http://xml.org/sax/features/validation",true);
parser.setProperty("http://apache.org/xml/properties/schema/external-noNamespaceSchemaLocation",schemaFile);
Digester digester = new Digester(parser);
digester.setValidating(true);
digester.setErrorHandler(new SimpleSaxErrorHandler());
digester.setSchema(schemaFile);
digester.addObjectCreate("account", GDataAccount.class);
digester.addBeanPropertySetter("account/account-name", "name");
digester.addBeanPropertySetter("account/password", "password");
digester.addBeanPropertySetter("account/account-role", "rolesAsInt");
digester.addBeanPropertySetter("account/account-owner/name",
"authorname");
digester.addBeanPropertySetter("account/account-owner/email-address",
"authorMail");
digester.addBeanPropertySetter("account/account-owner/url",
"authorLink");
account = (GDataAccount) digester.parse(reader);
return account;
}
}