|
1
6
7 package com.sun.enterprise.config.backup.pluggable;
8
9 import com.sun.enterprise.config.backup.BackupAbortException;
10 import com.sun.enterprise.config.backup.utils.LoggerHelper;
11 import com.sun.enterprise.config.backup.utils.LocalStringsHelper;
12 import java.util.logging.Logger  ;
13 import com.sun.enterprise.config.backup.status.StatusConstants;
14 import com.sun.enterprise.config.backup.pluggable.impl.DefaultBackupEnvironment;
15 import com.sun.enterprise.config.backup.pluggable.impl.DefaultActiveAssistance;
16 import com.sun.enterprise.config.backup.pluggable.impl.OfflineBackupSynchronizer;
17 import com.sun.enterprise.config.backup.pluggable.impl.OnlineBackupSynchronizer;
18 import com.sun.enterprise.config.backup.pluggable.impl.ZipStorage;
19 import com.sun.enterprise.config.backup.pluggable.impl.DirectoryStorage;
20 import com.sun.enterprise.config.backup.BackupStorageMonitor;
21 import com.sun.enterprise.config.backup.HistoryManager;
22 import com.sun.enterprise.config.backup.EnvironmentConstants;
23 import com.sun.enterprise.config.backup.utils.SystemPropsHelper;
24
34 public class EnvironmentFactory
35 implements StatusConstants, EnvironmentConstants {
36
37
38 private static EnvironmentFactory _ENV = null;
39 private static BackupEnvironment _BE = null;
40 private static ActiveAssistance _AA = null;
41
42 public static synchronized EnvironmentFactory getEnvironmentFactory() {
43 if(_ENV == null) {
44 _ENV = createEnvironmentFactory();
45 }
46 return _ENV;
47 }
48
49 private static EnvironmentFactory createEnvironmentFactory() {
50
51 String factoryClassName = SystemPropsHelper.getProperty(ENVIRONMENT_FACTORY_CLASS);
52
53 Class factoryClass;
54 try {
55 if(factoryClassName!= null && !"".equals(factoryClassName)) {
56 factoryClass = Class.forName(factoryClassName);
57 } else {
58 factoryClass = EnvironmentFactory.class;
59 }
60 }catch(Exception e) {
61 throw new BackupAbortException(
62 "error_loading_environment_factory_class",
63 LocalStringsHelper.
64 getString("error_loading_environment_factory_class"),
65 e);
66 }
67 LoggerHelper.fine("EnvironmentFactory.getEnvironmentFactory():" +
68 "Factory Class is " + factoryClass);
69
70 EnvironmentFactory result = null;
71 try {
72 result = (EnvironmentFactory) factoryClass.newInstance();
73 } catch(Exception e) {
74 throw new BackupAbortException(
75 "error_creating_environment_factory",
76 LocalStringsHelper.
77 getString("error_creating_environment_factory"),
78 e);
79 }
80
81 return result;
82 }
83
84 public synchronized BackupEnvironment getBackupEnvironment() {
85
86 if(_BE == null)
87 _BE = createBackupEnvironment();
88
89 return _BE;
90 }
91
92 public synchronized ActiveAssistance getActiveAssistance() {
93 if(_AA == null)
94 _AA = createActiveAssistance();
95
96 return _AA;
97 }
98
99 private BackupStorage getBackupStorage(String type) {
100
101 if(STORAGE_TYPE_ZIP.equals(type)) return new ZipStorage();
102 if(STORAGE_TYPE_DIRECTORY.equals(type)) return new DirectoryStorage();
103
104 throw new BackupAbortException(
105 "unsupported_storage_type",
106 LocalStringsHelper.getString("unsupported_storage_type", type));
107 }
108
109 public BackupStorage getBackupStorage() {
110
111 String storageType = getBackupEnvironment().getBackupStorageType();
112 return getBackupStorage(storageType);
113 }
114
115 protected BackupEnvironment createBackupEnvironment() {
116 return new DefaultBackupEnvironment();
117 }
118
119 protected ActiveAssistance createActiveAssistance() {
120 return new DefaultActiveAssistance();
121 }
122
123
124 public BackupSynchronizer getBackupSynchronizer() {
125
126 String type = getBackupEnvironment().getExecutionType();
127
128 if(type == TYPE_OFFLINE) return getOfflineBackupSynchronizer();
129
130 if(type == TYPE_ONLINE) return getOnlineBackupSynchronizer();
131
132 throw new BackupAbortException(
133 "error_wrong_execution_type",
134 LocalStringsHelper.getString("error_wrong_execution_type",type));
135 }
136
137 protected BackupSynchronizer getOfflineBackupSynchronizer() {
138 return new OfflineBackupSynchronizer();
139 }
140
141 protected BackupSynchronizer getOnlineBackupSynchronizer() {
142 return new OnlineBackupSynchronizer();
143 }
144 }
145 |
Popular Tags |
Java API By Example, From Geeks To Geeks.