| // 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.tapestry.multipart; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /** |
| * A portion of a multipart request that stores a value, or values, for |
| * a parameter. |
| * |
| * @author Howard Lewis Ship |
| * @version $Id$ |
| * @since 2.0.1 |
| * |
| **/ |
| |
| public class ValuePart implements IPart |
| { |
| private int _count; |
| // Stores either String or List of String |
| private Object _value; |
| |
| public ValuePart(String value) |
| { |
| _count = 1; |
| _value = value; |
| } |
| |
| public int getCount() |
| { |
| return _count; |
| } |
| |
| /** |
| * Returns the value, or the first value (if multi-valued). |
| * |
| **/ |
| |
| public String getValue() |
| { |
| if (_count == 1) |
| return (String) _value; |
| |
| List l = (List) _value; |
| |
| return (String) l.get(0); |
| } |
| |
| /** |
| * Returns the values as an array of strings. If there is only one value, |
| * it is returned wrapped as a single element array. |
| * |
| **/ |
| |
| public String[] getValues() |
| { |
| if (_count == 1) |
| return new String[] {(String) _value }; |
| |
| List l = (List) _value; |
| |
| return (String[]) l.toArray(new String[_count]); |
| } |
| |
| public void add(String newValue) |
| { |
| if (_count == 1) |
| { |
| List l = new ArrayList(); |
| l.add(_value); |
| l.add(newValue); |
| |
| _value = l; |
| _count++; |
| return; |
| } |
| |
| List l = (List) _value; |
| l.add(newValue); |
| _count++; |
| } |
| |
| /** |
| * Does nothing. |
| * |
| **/ |
| |
| public void cleanup() |
| { |
| } |
| } |