| /* |
| * 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 |
| * |
| * https://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.directory.api.ldap.schema.converter; |
| |
| |
| import java.io.InputStream; |
| import java.io.Writer; |
| import java.util.List; |
| |
| import org.apache.directory.api.i18n.I18n; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| |
| /** |
| * A class used to translate a OpenLdap schema file to a Ldif file compatible |
| * with the ApacheDS meta schema format |
| * |
| * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> |
| */ |
| public final class SchemaToLdif |
| { |
| /** The ASF Header */ |
| private static final String HEADER = "#\n" + "# Licensed to the Apache Software Foundation (ASF) under one\n" |
| + "# or more contributor license agreements. See the NOTICE file\n" |
| + "# distributed with this work for additional information\n" |
| + "# regarding copyright ownership. The ASF licenses this file\n" |
| + "# to you under the Apache License, Version 2.0 (the\n" |
| + "# \"License\"); you may not use this file except in compliance\n" |
| + "# with the License. You may obtain a copy of the License at\n" + "# \n" |
| + "# https://www.apache.org/licenses/LICENSE-2.0\n" + "# \n" |
| + "# Unless required by applicable law or agreed to in writing,\n" |
| + "# software distributed under the License is distributed on an\n" |
| + "# \"AS IS\" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY\n" |
| + "# KIND, either express or implied. See the License for the\n" |
| + "# specific language governing permissions and limitations\n" + "# under the License. \n" + "#\n" |
| + "version: 1\n" + "\n"; |
| |
| /** The logger */ |
| private static final Logger LOG = LoggerFactory.getLogger( SchemaToLdif.class ); |
| |
| |
| /** |
| * Private constructor. |
| */ |
| private SchemaToLdif() |
| { |
| } |
| |
| |
| /** |
| * This method takes a list of schema and transform them to Ldif files |
| * |
| * @param schemas The list of schema to be transformed |
| * @throws ParserException If we get an error while converting the schemas |
| */ |
| public static void transform( List<Schema> schemas ) throws ParserException |
| { |
| // Bypass if no schemas have yet been defined |
| if ( ( schemas == null ) || schemas.isEmpty() ) |
| { |
| if ( LOG.isWarnEnabled() ) |
| { |
| LOG.warn( I18n.msg( I18n.MSG_15000_NO_SCHEMA_DEFINED ) ); |
| } |
| |
| return; |
| } |
| |
| // Make sure schema configurations have a name field and set defaults |
| // for any other missing properties of the bean: pkg and owner. |
| int i = 1; |
| |
| for ( Schema schema : schemas ) |
| { |
| if ( schema.getName() == null ) |
| { |
| String msg = I18n.err( I18n.ERR_15000_SCHEMA_ELEMENT_NAME_REQUIRED, i ); |
| LOG.error( msg ); |
| throw new ParserException( msg ); |
| } |
| |
| } |
| |
| // Generate for each schema |
| for ( Schema schema : schemas ) |
| { |
| try |
| { |
| if ( LOG.isInfoEnabled() ) |
| { |
| LOG.info( I18n.msg( I18n.MSG_15001_GENERATING_SCHEMA, schema.getName() ) ); |
| } |
| |
| generate( schema ); |
| } |
| catch ( Exception e ) |
| { |
| throw new ParserException( I18n.err( I18n.ERR_15004_CANNOT_GENERATE_SOURCES, schema.getName(), |
| e.getMessage() ) ); |
| } |
| } |
| } |
| |
| |
| /** |
| * Generate the ldif from a schema. The schema contains the inputStream |
| * and Writer. |
| * |
| * @param schema The schema to transfom |
| * @throws Exception If the conversion fails |
| */ |
| private static void generate( Schema schema ) throws Exception |
| { |
| try ( InputStream in = schema.getInput() ) |
| { |
| try ( Writer out = schema.getOutput() ) |
| { |
| // First parse the schema |
| SchemaParser parser = new SchemaParser(); |
| List<SchemaElement> elements = parser.parse( in ); |
| |
| // Start with the header (apache licence) |
| out.write( HEADER ); |
| |
| // Iterate through each schema elemnts |
| for ( SchemaElement element : elements ) |
| { |
| out.write( element.toLdif( schema.getName() ) ); |
| |
| out.write( '\n' ); |
| } |
| |
| // Done. Flush the result and close the reader and writer |
| out.flush(); |
| } |
| } |
| } |
| } |