001 /**
002 * GRANITE DATA SERVICES
003 * Copyright (C) 2006-2013 GRANITE DATA SERVICES S.A.S.
004 *
005 * This file is part of the Granite Data Services Platform.
006 *
007 * Granite Data Services is free software; you can redistribute it and/or
008 * modify it under the terms of the GNU Lesser General Public
009 * License as published by the Free Software Foundation; either
010 * version 2.1 of the License, or (at your option) any later version.
011 *
012 * Granite Data Services is distributed in the hope that it will be useful,
013 * but WITHOUT ANY WARRANTY; without even the implied warranty of
014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
015 * General Public License for more details.
016 *
017 * You should have received a copy of the GNU Lesser General Public
018 * License along with this library; if not, write to the Free Software
019 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
020 * USA, or see <http://www.gnu.org/licenses/>.
021 */
022 package org.granite.tide.data;
023
024 import java.io.Externalizable;
025 import java.io.IOException;
026 import java.io.ObjectInput;
027 import java.io.ObjectOutput;
028 import java.io.Serializable;
029 import java.util.HashMap;
030 import java.util.Map;
031 import java.util.Map.Entry;
032
033
034 /**
035 * @author William DRAI
036 */
037 public class Change implements Externalizable {
038
039 private static final long serialVersionUID = 1L;
040
041 private String className;
042 private String uid;
043 private Serializable id;
044 private Number version;
045 private Map<String, Object> changes;
046
047
048 public Change() {
049 }
050
051 public Change(String className, Serializable id, Number version, String uid) {
052 this.className = className;
053 this.id = id;
054 this.version = version;
055 this.uid = uid;
056 this.changes = new HashMap<String, Object>();
057 }
058
059 public String getClassName() {
060 return className;
061 }
062
063 public String getUid() {
064 return uid;
065 }
066
067 public Serializable getId() {
068 return id;
069 }
070
071 public Number getVersion() {
072 return version;
073 }
074
075 public Map<String, Object> getChanges() {
076 return changes;
077 }
078
079 public void addCollectionChanges(String propertyName, CollectionChange[] collChanges) {
080 CollectionChanges existingChanges = (CollectionChanges)changes.get(propertyName);
081 if (existingChanges == null)
082 changes.put(propertyName, new CollectionChanges(collChanges));
083 else {
084 CollectionChange[] newChanges = new CollectionChange[existingChanges.getChanges().length+collChanges.length];
085 System.arraycopy(existingChanges.getChanges(), 0, newChanges, 0, existingChanges.getChanges().length);
086 System.arraycopy(collChanges, 0, newChanges, existingChanges.getChanges().length, collChanges.length);
087 existingChanges.setChanges(newChanges);
088 }
089 }
090
091 @Override
092 public String toString() {
093 StringBuilder sb = new StringBuilder();
094 sb.append(getClassName()).append(':').append(getUid()).append(":").append(getId()).append(':').append(getVersion()).append("={");
095 for (Entry<String, Object> change : getChanges().entrySet()) {
096 sb.append(change.getKey()).append(": ").append(change.getValue() != null ? change.getValue().toString() : "null");
097 }
098 sb.append("}");
099 return sb.toString();
100 }
101
102 public void writeExternal(ObjectOutput out) throws IOException {
103 out.writeObject(className);
104 out.writeObject(uid);
105 out.writeObject(id);
106 out.writeObject(version);
107 out.writeObject(changes);
108 }
109
110 @SuppressWarnings("unchecked")
111 public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
112 className = (String)in.readObject();
113 uid = (String)in.readObject();
114 id = (Serializable)in.readObject();
115 version = (Number)in.readObject();
116 changes = (Map<String, Object>)in.readObject();
117 }
118 }