| /* $Id$ |
| * |
| * 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.Map; |
| |
| 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; |
| |
| |
| /** |
| * An etch serializer for StrIntHashMap. |
| */ |
| public class StrIntHashMapSerializer implements ImportExportHelper |
| { |
| private final static String FIELD_NAME = "keysAndValues"; |
| |
| /** |
| * 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( StrIntHashMap.class, type ); |
| type.setComponentType( StrIntHashMap.class ); |
| type.setImportExportHelper( new StrIntHashMapSerializer( type, field ) ); |
| type.putValidator( field, Validator_object.get( 1 ) ); |
| type.lock(); |
| } |
| |
| /** |
| * @param type |
| * @param field |
| */ |
| public StrIntHashMapSerializer( Type type, Field field ) |
| { |
| this.type = type; |
| this.field = field; |
| } |
| |
| private final Type type; |
| |
| private final Field field; |
| |
| public Object importValue( StructValue struct ) |
| { |
| StrIntHashMap map = new StrIntHashMap(); |
| |
| Object[] keysAndValues = (Object[]) struct.get( field ); |
| int n = keysAndValues.length; |
| int index = 0; |
| while (index < n) |
| { |
| String key = (String) keysAndValues[index++]; |
| Integer value = (Integer) keysAndValues[index++]; |
| map.put( key, value ); |
| } |
| |
| return map; |
| } |
| |
| public StructValue exportValue( ValueFactory vf, Object value ) |
| { |
| StrIntHashMap map = (StrIntHashMap) value; |
| |
| Object[] keysAndValues = new Object[map.size()*2]; |
| int index = 0; |
| for (Map.Entry<String, Integer> me: map.entrySet()) |
| { |
| keysAndValues[index++] = me.getKey(); |
| keysAndValues[index++] = me.getValue(); |
| } |
| |
| StructValue struct = new StructValue( type, vf ); |
| struct.put( field, keysAndValues ); |
| return struct; |
| } |
| } |