cdmlib-persistence/src/main/java/eu/etaxonomy/cdm/persistence/hibernate/CdmDataChangeMap.java

   1 /**
   2 * Copyright (C) 2007 EDIT
   3 * European Distributed Institute of Taxonomy
   4 * http://www.e-taxonomy.eu
   5 *
   6 * The contents of this file are subject to the Mozilla Public License Version 1.1
   7 * See LICENSE.TXT at the top of this package for the full license terms.
   8 */
   9
  10 package eu.etaxonomy.cdm.persistence.hibernate;
  11
  12 import java.util.Collection;
  13 import java.util.HashMap;
  14 import java.util.HashSet;
  15 import java.util.Map;
  16 import java.util.Set;
  17 import java.util.Vector;
  18
  19 import org.apache.log4j.Logger;
  20
  21 import eu.etaxonomy.cdm.persistence.hibernate.CdmDataChangeEvent.EventType;
  22
  23 /**
  24  * @author n.hoffman
  25  * @since 09.04.2009
  26  * @version 1.0
  27  */
  28 public class CdmDataChangeMap  implements Map<EventType, Vector<CdmDataChangeEvent>>{
  29         private static final Logger logger = Logger
  30                         .getLogger(CdmDataChangeMap.class);
  31
  32         private Map<EventType, Vector<CdmDataChangeEvent>> dataChangeMap;
  33
  34         public CdmDataChangeMap(){
  35                 dataChangeMap = new HashMap<EventType, Vector<CdmDataChangeEvent>>();
  36         }
  37
  38         /* (non-Javadoc)
  39          * @see java.util.Map#clear()
  40          */
  41         @Override
  42     public void clear() {
  43                 dataChangeMap.clear();
  44         }
  45
  46         /* (non-Javadoc)
  47          * @see java.util.Map#containsKey(java.lang.Object)
  48          */
  49         @Override
  50     public boolean containsKey(Object key) {
  51                 return dataChangeMap.containsKey(key);
  52         }
  53
  54         /* (non-Javadoc)
  55          * @see java.util.Map#containsValue(java.lang.Object)
  56          */
  57         @Override
  58     public boolean containsValue(Object value) {
  59                 return dataChangeMap.containsValue(value);
  60         }
  61
  62         /* (non-Javadoc)
  63          * @see java.util.Map#entrySet()
  64          */
  65         @Override
  66     public Set entrySet() {
  67                 return dataChangeMap.entrySet();
  68         }
  69
  70         /* (non-Javadoc)
  71          * @see java.util.Map#get(java.lang.Object)
  72          */
  73         @Override
  74     public Vector<CdmDataChangeEvent> get(Object key) {
  75                 return dataChangeMap.get(key);
  76         }
  77
  78         /**
  79          * Returns events by type
  80          *
  81          * @param type
  82          * @return never null
  83          */
  84         public Vector<CdmDataChangeEvent> getEvents(EventType type){
  85                 Vector<CdmDataChangeEvent> vector = dataChangeMap.get(type);
  86                 if(vector == null){
  87                     vector = new Vector<>(0);
  88                 }
  89         return vector;
  90         }
  91
  92         /* (non-Javadoc)
  93          * @see java.util.Map#isEmpty()
  94          */
  95         @Override
  96     public boolean isEmpty() {
  97                 return dataChangeMap.isEmpty();
  98         }
  99
 100         /* (non-Javadoc)
 101          * @see java.util.Map#keySet()
 102          */
 103         @Override
 104     public Set keySet() {
 105                 return dataChangeMap.keySet();
 106         }
 107
 108         public void add(EventType type, CdmDataChangeEvent event){
 109                 Vector<CdmDataChangeEvent> vector = getEvents(type);
 110
 111                 // lazy initialising the vectors
 112                 if(vector == null){
 113                         vector = new Vector<CdmDataChangeEvent>();
 114                 }
 115
 116                 vector.add(event);
 117
 118                 dataChangeMap.put(type, vector);
 119         }
 120
 121
 122         /* (non-Javadoc)
 123          * @see java.util.Map#remove(java.lang.Object)
 124          */
 125         @Override
 126     public Vector<CdmDataChangeEvent> remove(Object key) {
 127                 return dataChangeMap.remove(key);
 128         }
 129
 130         /* (non-Javadoc)
 131          * @see java.util.Map#size()
 132          */
 133         @Override
 134     public int size() {
 135                 return dataChangeMap.size();
 136         }
 137
 138         public int sizeByEventType(EventType type){
 139                 Vector<CdmDataChangeEvent> vector = getEvents(type);
 140                 return vector == null ? 0 : vector.size();
 141         }
 142
 143         /* (non-Javadoc)
 144          * @see java.util.Map#values()
 145          */
 146         @Override
 147     public Collection<Vector<CdmDataChangeEvent>> values() {
 148                 return dataChangeMap.values();
 149         }
 150
 151         /**
 152          * Returns all change events stored in this change map
 153          *
 154          * @return
 155          */
 156         public Collection<CdmDataChangeEvent> getAllEvents(){
 157                 Collection<CdmDataChangeEvent> values = new HashSet<CdmDataChangeEvent>();
 158                 for (EventType type : EventType.values()){
 159                         if(dataChangeMap.get(type) != null){
 160                                 for(CdmDataChangeEvent event : dataChangeMap.get(type)){
 161                                         values.add(event);
 162                                 }
 163                         }
 164                 }
 165                 return values;
 166         }
 167
 168         /* (non-Javadoc)
 169          * @see java.util.Map#put(java.lang.Object, java.lang.Object)
 170          */
 171         @Override
 172     public Vector<CdmDataChangeEvent> put(EventType key,
 173                         Vector<CdmDataChangeEvent> value) {
 174                 return dataChangeMap.put(key, value);
 175         }
 176
 177         /* (non-Javadoc)
 178          * @see java.util.Map#putAll(java.util.Map)
 179          */
 180         @Override
 181     public void putAll(
 182                         Map<? extends EventType, ? extends Vector<CdmDataChangeEvent>> t) {
 183                 dataChangeMap.putAll(t);
 184         }
 185 }