| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.openjpa.jdbc.schema; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.net.URL; |
| import java.security.AccessController; |
| |
| import org.apache.openjpa.jdbc.conf.JDBCConfiguration; |
| import org.apache.openjpa.lib.conf.Configurable; |
| import org.apache.openjpa.lib.conf.Configuration; |
| import org.apache.openjpa.lib.util.Files; |
| import org.apache.openjpa.lib.util.J2DoPrivHelper; |
| import org.apache.openjpa.util.GeneralException; |
| |
| /** |
| * Factory that uses an XML schema file to construct the system schema. |
| * |
| * @author Abe White |
| */ |
| public class FileSchemaFactory |
| implements SchemaFactory, Configurable { |
| |
| private JDBCConfiguration _conf = null; |
| private String _fileName = "package.schema"; |
| private ClassLoader _loader = null; |
| |
| /** |
| * Return the XML resource defining this schema. Defaults to |
| * <code>package.schema</code>. |
| */ |
| public String getFile() { |
| return _fileName; |
| } |
| |
| /** |
| * Set the XML resource defining this schema. Defaults to |
| * <code>package.schema</code>. |
| */ |
| public void setFile(String fileName) { |
| _fileName = fileName; |
| } |
| |
| /** |
| * @deprecated Use {@link #setFile}. Retained for |
| * backwards-compatible auto-configuration. |
| */ |
| public void setFileName(String name) { |
| setFile(name); |
| } |
| |
| public void setConfiguration(Configuration conf) { |
| _conf = (JDBCConfiguration) conf; |
| _loader = _conf.getClassResolverInstance(). |
| getClassLoader(getClass(), null); |
| } |
| |
| public void startConfiguration() { |
| } |
| |
| public void endConfiguration() { |
| } |
| |
| public SchemaGroup readSchema() { |
| URL url = (URL) AccessController.doPrivileged( |
| J2DoPrivHelper.getResourceAction(_loader, _fileName)); |
| if (url == null) |
| return new SchemaGroup(); |
| |
| XMLSchemaParser parser = new XMLSchemaParser(_conf); |
| try { |
| parser.parse(url); |
| } catch (IOException ioe) { |
| throw new GeneralException(ioe); |
| } |
| return parser.getSchemaGroup(); |
| } |
| |
| public void storeSchema(SchemaGroup schema) { |
| File file = Files.getFile(_fileName, _loader); |
| XMLSchemaSerializer ser = new XMLSchemaSerializer(_conf); |
| ser.addAll(schema); |
| try { |
| ser.serialize(file, ser.PRETTY); |
| } catch (IOException ioe) { |
| throw new GeneralException(ioe); |
| } |
| } |
| } |