Clover coverage report - Code Coverage for tapestry release 4.0-beta-2
Coverage timestamp: Sat Jul 9 2005 22:02:17 EDT
file stats: LOC: 158   Methods: 10
NCLOC: 88   Classes: 1
30 day Evaluation License registered to hlship@comcast.net Your 30 day evaluation period has expired. Please visit http://www.cenqua.com to obtain a licensed version of Clover
 
 Source file Conditionals Statements Methods TOTAL
ClientPropertyPersistenceStrategy.java 91.7% 100% 100% 98.3%
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.Collection;
 18    import java.util.Collections;
 19    import java.util.HashMap;
 20    import java.util.Iterator;
 21    import java.util.List;
 22    import java.util.Map;
 23   
 24    import org.apache.hivemind.util.Defense;
 25    import org.apache.tapestry.IRequestCycle;
 26    import org.apache.tapestry.engine.ServiceEncoding;
 27    import org.apache.tapestry.web.WebRequest;
 28   
 29    /**
 30    * Service tapestry.persist.ClientPropertyPersistenceStrategy. Encodes persistent page properties on
 31    * the client as query parameters.
 32    * <p>
 33    * Uses the threaded model.
 34    *
 35    * @author Howard M. Lewis Ship
 36    * @since 4.0
 37    * @see org.apache.tapestry.engine.ILink
 38    */
 39    public class ClientPropertyPersistenceStrategy implements PropertyPersistenceStrategy
 40    {
 41    /**
 42    * Query parameters consist of this prefix followed by the page name. Each page gets its own
 43    * query parameter.
 44    */
 45    public static final String PREFIX = "state:";
 46   
 47    /**
 48    * Keyed on page name (String), values are
 49    * {@link org.apache.tapestry.record.PersistentPropertyData}.
 50    */
 51    private final Map _data = new HashMap();
 52   
 53    private final PersistentPropertyDataEncoder _encoder;
 54   
 55    private WebRequest _request;
 56   
 57    private ClientPropertyPersistenceScope _scope;
 58   
 59  266 public ClientPropertyPersistenceStrategy()
 60    {
 61  266 this(new PersistentPropertyDataEncoderImpl());
 62    }
 63   
 64    // Alternate constructor used for testing
 65  267 ClientPropertyPersistenceStrategy(PersistentPropertyDataEncoder encoder)
 66    {
 67  267 _encoder = encoder;
 68    }
 69   
 70    /**
 71    * Initializer for this service, invoked every time a service instance is created. This
 72    * initializer pulls out of the request and query parameters whose prefix is "client:" and
 73    * expects them to be encoded {@link PersistentPropertyData}, which are stored internally.
 74    * Because the service model is threaded, this information is specific to a single request, and
 75    * will be discarded at the end of the request.
 76    */
 77   
 78  265 public void initializeService()
 79    {
 80  265 List names = _request.getParameterNames();
 81  265 Iterator i = names.iterator();
 82  265 while (i.hasNext())
 83    {
 84  741 String name = (String) i.next();
 85   
 86  741 if (!name.startsWith(PREFIX))
 87  737 continue;
 88   
 89  4 String pageName = name.substring(PREFIX.length());
 90  4 String encoded = _request.getParameterValue(name);
 91   
 92  4 PersistentPropertyData data = new PersistentPropertyData(_encoder);
 93  4 data.storeEncoded(encoded);
 94   
 95  4 _data.put(pageName, data);
 96    }
 97    }
 98   
 99  1 public void store(String pageName, String idPath, String propertyName, Object newValue)
 100    {
 101  1 PersistentPropertyData data = (PersistentPropertyData) _data.get(pageName);
 102  1 if (data == null)
 103    {
 104  1 data = new PersistentPropertyData(_encoder);
 105  1 _data.put(pageName, data);
 106    }
 107   
 108  1 data.store(idPath, propertyName, newValue);
 109    }
 110   
 111  568 public Collection getStoredChanges(String pageName, IRequestCycle cycle)
 112    {
 113  568 PersistentPropertyData data = (PersistentPropertyData) _data.get(pageName);
 114   
 115  568 if (data == null)
 116  566 return Collections.EMPTY_LIST;
 117   
 118  2 return data.getPageChanges();
 119    }
 120   
 121  1 public void discardStoredChanges(String pageName, IRequestCycle cycle)
 122    {
 123  1 _data.remove(pageName);
 124    }
 125   
 126  422 public void addParametersForPersistentProperties(ServiceEncoding encoding, IRequestCycle cycle)
 127    {
 128  422 Defense.notNull(encoding, "encoding");
 129  422 Defense.notNull(cycle, "cycle");
 130   
 131  422 Iterator i = _data.entrySet().iterator();
 132  422 while (i.hasNext())
 133    {
 134  3 Map.Entry e = (Map.Entry) i.next();
 135   
 136  3 String pageName = (String) e.getKey();
 137  3 PersistentPropertyData data = (PersistentPropertyData) e.getValue();
 138   
 139  3 ClientPropertyPersistenceScope scope = getScope();
 140   
 141  3 if (scope.addParametersForPersistentProperties(encoding, cycle, pageName, data))
 142  2 encoding.setParameterValue(PREFIX + pageName, data.getEncoded());
 143    }
 144    }
 145   
 146  265 public void setRequest(WebRequest request)
 147    {
 148  265 _request = request;
 149    }
 150   
 151  3 public ClientPropertyPersistenceScope getScope() {
 152  3 return _scope;
 153    }
 154   
 155  264 public void setScope(ClientPropertyPersistenceScope scope) {
 156  264 _scope = scope;
 157    }
 158    }