| /* $Id$ |
| * |
| * 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.etch.bindings.java.util; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.apache.etch.bindings.java.msg.Field; |
| import org.apache.etch.bindings.java.msg.ImportExportHelper; |
| import org.apache.etch.bindings.java.msg.StructValue; |
| import org.apache.etch.bindings.java.msg.Type; |
| import org.apache.etch.bindings.java.msg.ValueFactory; |
| import org.apache.etch.bindings.java.support.Class2TypeMap; |
| import org.apache.etch.bindings.java.support.Validator_object; |
| |
| |
| /** |
| * Serializer for generic List<Object>. |
| */ |
| public class ListSerializer implements ImportExportHelper |
| { |
| private final static String FIELD_NAME = "values"; |
| |
| /** |
| * Defines custom fields in the value factory so that the importer |
| * can find them. |
| * @param type |
| * @param class2type |
| */ |
| public static void init( Type type, Class2TypeMap class2type ) |
| { |
| Field field = type.getField( FIELD_NAME ); |
| class2type.put( ArrayList.class, type ); |
| type.setComponentType( List.class ); |
| type.setImportExportHelper( new ListSerializer( type, field ) ); |
| type.putValidator( field, Validator_object.get( 1 ) ); |
| type.lock(); |
| } |
| |
| /** |
| * @param type |
| * @param field |
| */ |
| public ListSerializer( Type type, Field field ) |
| { |
| this.type = type; |
| this.field = field; |
| } |
| |
| private final Type type; |
| |
| private final Field field; |
| |
| public Object importValue( StructValue struct ) |
| { |
| struct.checkType( type ); |
| Object[] values = (Object[]) struct.get( field ); |
| |
| List<Object> list = new ArrayList<Object>( values.length ); |
| for( Object value: values) |
| list.add( value ); |
| |
| return list; |
| } |
| |
| @SuppressWarnings("unchecked") |
| public StructValue exportValue( ValueFactory vf, Object value ) |
| { |
| List<Object> list = (List<Object>) value; |
| |
| Object[] values = new Object[list.size()]; |
| list.toArray( values ); |
| |
| StructValue struct = new StructValue( type, vf ); |
| struct.put( field, values ); |
| return struct; |
| } |
| } |