Clover coverage report - Code Coverage for tapestry release 4.0-rc-2
Coverage timestamp: Sat Dec 17 2005 09:39:46 PST
file stats: LOC: 154   Methods: 8
NCLOC: 83   Classes: 1
 
 Source file Conditionals Statements Methods TOTAL
PersistentPropertyData.java 90% 97.5% 100% 96.6%
coverage coverage
 1    // Copyright 2005 The Apache Software Foundation
 2    //
 3    // Licensed under the Apache License, Version 2.0 (the "License");
 4    // you may not use this file except in compliance with the License.
 5    // You may obtain a copy of the License at
 6    //
 7    // http://www.apache.org/licenses/LICENSE-2.0
 8    //
 9    // Unless required by applicable law or agreed to in writing, software
 10    // distributed under the License is distributed on an "AS IS" BASIS,
 11    // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 12    // See the License for the specific language governing permissions and
 13    // limitations under the License.
 14   
 15    package org.apache.tapestry.record;
 16   
 17    import java.util.ArrayList;
 18    import java.util.HashMap;
 19    import java.util.Iterator;
 20    import java.util.List;
 21    import java.util.Map;
 22   
 23    import org.apache.hivemind.util.Defense;
 24   
 25    /**
 26    * Stores persistent property changes concerning a single page. The data may be stored as an encoded
 27    * string and the PPD can turn between encoded and object form.
 28    *
 29    * @author Howard M. Lewis Ship
 30    * @since 4.0
 31    */
 32    public class PersistentPropertyData
 33    {
 34    /**
 35    * Keyed on {@link org.apache.tapestry.record.ChangeKey}, values are new objects.
 36    */
 37   
 38    private Map _changes;
 39   
 40    private String _encoded;
 41   
 42    private final PersistentPropertyDataEncoder _encoder;
 43   
 44    /**
 45    * Creates a new data using the specified encoder. The set of page changes is initially empty.
 46    */
 47   
 48  8 public PersistentPropertyData(PersistentPropertyDataEncoder encoder)
 49    {
 50  8 Defense.notNull(encoder, "encoder");
 51   
 52  8 _encoder = encoder;
 53  8 _changes = new HashMap();
 54    }
 55   
 56  4 public String getEncoded()
 57    {
 58  4 if (_encoded == null)
 59  1 _encoded = encode();
 60   
 61  4 return _encoded;
 62    }
 63   
 64  6 public List getPageChanges()
 65    {
 66  6 if (_changes == null)
 67    {
 68  2 List pageChanges = _encoder.decodePageChanges(_encoded);
 69   
 70  2 _changes = decode(pageChanges);
 71   
 72  2 return pageChanges;
 73    }
 74   
 75  4 return createPageChangeList();
 76    }
 77   
 78  4 public void store(String componentPath, String propertyName, Object newValue)
 79    {
 80  4 Defense.notNull(propertyName, "propertyName");
 81   
 82  4 if (_changes == null)
 83  0 _changes = decode(_encoder.decodePageChanges(_encoded));
 84   
 85  4 ChangeKey key = new ChangeKey(componentPath, propertyName);
 86   
 87  4 _changes.put(key, newValue);
 88   
 89    // With the new (or changed) value, the encoded string is no
 90    // longer valid.
 91   
 92  4 _encoded = null;
 93    }
 94   
 95  5 public void storeEncoded(String encoded)
 96    {
 97  5 Defense.notNull(encoded, "encoded");
 98   
 99  5 _encoded = encoded;
 100   
 101    // The decoded data is no longer valid now.
 102   
 103  5 _changes = null;
 104    }
 105   
 106  5 private List createPageChangeList()
 107    {
 108  5 List result = new ArrayList();
 109   
 110  5 Iterator i = _changes.entrySet().iterator();
 111   
 112  5 while (i.hasNext())
 113    {
 114  5 Map.Entry me = (Map.Entry) i.next();
 115   
 116  5 ChangeKey changeKey = (ChangeKey) me.getKey();
 117  5 Object value = me.getValue();
 118   
 119  5 PropertyChange change = new PropertyChangeImpl(changeKey.getComponentPath(), changeKey
 120    .getPropertyName(), value);
 121   
 122  5 result.add(change);
 123    }
 124   
 125  5 return result;
 126    }
 127   
 128  1 private String encode()
 129    {
 130  1 List changes = createPageChangeList();
 131   
 132  1 return _encoder.encodePageChanges(changes);
 133    }
 134   
 135  2 private Map decode(List pageChanges)
 136    {
 137  2 Map result = new HashMap();
 138   
 139  2 Iterator i = pageChanges.iterator();
 140  2 while (i.hasNext())
 141    {
 142  2 PropertyChange pc = (PropertyChange) i.next();
 143   
 144  2 String propertyName = pc.getPropertyName();
 145  2 String componentPath = pc.getComponentPath();
 146   
 147  2 ChangeKey key = new ChangeKey(componentPath, propertyName);
 148   
 149  2 result.put(key, pc.getNewValue());
 150    }
 151   
 152  2 return result;
 153    }
 154    }