|
1
|
/**
|
|
2
|
* '$RCSfile$'
|
|
3
|
* Purpose: A class that gets Accession Number, check for uniqueness
|
|
4
|
* and register it into db
|
|
5
|
* Copyright: 2000 Regents of the University of California and the
|
|
6
|
* National Center for Ecological Analysis and Synthesis
|
|
7
|
* Authors: Jivka Bojilova, Matt Jones
|
|
8
|
*
|
|
9
|
* '$Author: leinfelder $'
|
|
10
|
* '$Date: 2011-11-02 20:40:12 -0700 (Wed, 02 Nov 2011) $'
|
|
11
|
* '$Revision: 6595 $'
|
|
12
|
*
|
|
13
|
* This program is free software; you can redistribute it and/or modify
|
|
14
|
* it under the terms of the GNU General Public License as published by
|
|
15
|
* the Free Software Foundation; either version 2 of the License, or
|
|
16
|
* (at your option) any later version.
|
|
17
|
*
|
|
18
|
* This program is distributed in the hope that it will be useful,
|
|
19
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
20
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
21
|
* GNU General Public License for more details.
|
|
22
|
*
|
|
23
|
* You should have received a copy of the GNU General Public License
|
|
24
|
* along with this program; if not, write to the Free Software
|
|
25
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
26
|
*/
|
|
27
|
package edu.ucsb.nceas.metacat.index;
|
|
28
|
|
|
29
|
import java.io.FileNotFoundException;
|
|
30
|
|
|
31
|
import org.apache.commons.logging.Log;
|
|
32
|
import org.apache.commons.logging.LogFactory;
|
|
33
|
import org.dataone.configuration.Settings;
|
|
34
|
import org.dataone.service.exceptions.ServiceFailure;
|
|
35
|
import org.dataone.service.types.v1.Identifier;
|
|
36
|
import org.dataone.service.types.v1.SystemMetadata;
|
|
37
|
|
|
38
|
import com.hazelcast.client.ClientConfig;
|
|
39
|
import com.hazelcast.client.HazelcastClient;
|
|
40
|
import com.hazelcast.config.Config;
|
|
41
|
import com.hazelcast.config.FileSystemXmlConfig;
|
|
42
|
import com.hazelcast.core.IMap;
|
|
43
|
|
|
44
|
|
|
45
|
/**
|
|
46
|
* A factory to get distributed maps from the haszel cast client.
|
|
47
|
* @author tao
|
|
48
|
*
|
|
49
|
*/
|
|
50
|
public class DistributedMapsFactory {
|
|
51
|
|
|
52
|
private static Log log = LogFactory.getLog(DistributedMapsFactory.class);
|
|
53
|
|
|
54
|
private static HazelcastClient hzClient = null;
|
|
55
|
private static String hzSystemMetadata = null;
|
|
56
|
private static String hzObjectPath = null;
|
|
57
|
private static int waitingTime = IndexGenerator.WAITTIME;
|
|
58
|
private static int maxAttempts = IndexGenerator.MAXWAITNUMBER;
|
|
59
|
|
|
60
|
/*
|
|
61
|
* Start the hazel cast client
|
|
62
|
*/
|
|
63
|
private static void startHazelCastClient() throws FileNotFoundException, ServiceFailure{
|
|
64
|
|
|
65
|
try {
|
|
66
|
waitingTime = Settings.getConfiguration().getInt(IndexGenerator.WAITIMEPOPERTYNAME);
|
|
67
|
maxAttempts = Settings.getConfiguration().getInt(IndexGenerator.MAXATTEMPTSPROPERTYNAME);
|
|
68
|
} catch (Exception e) {
|
|
69
|
log.warn("DistributedMapFactory.startHazelCastClient - couldn't read the waiting time or maxattempts from the metacat.properties file since : "+e.getMessage()+". Default values will be used");
|
|
70
|
waitingTime = IndexGenerator.WAITTIME;
|
|
71
|
maxAttempts = IndexGenerator.MAXWAITNUMBER;
|
|
72
|
}
|
|
73
|
// get config values
|
|
74
|
hzSystemMetadata = Settings.getConfiguration().getString(
|
|
75
|
"dataone.hazelcast.storageCluster.systemMetadataMap");
|
|
76
|
hzObjectPath = Settings.getConfiguration().getString(
|
|
77
|
"dataone.hazelcast.storageCluster.objectPathMap");
|
|
78
|
String configFileName = Settings.getConfiguration().getString(
|
|
79
|
"dataone.hazelcast.configFilePath");;
|
|
80
|
Config hzConfig = null;
|
|
81
|
try {
|
|
82
|
hzConfig = new FileSystemXmlConfig(configFileName);
|
|
83
|
} catch (FileNotFoundException e) {
|
|
84
|
log.error("could not load hazelcast configuration file from: " + configFileName, e);
|
|
85
|
throw e;
|
|
86
|
}
|
|
87
|
|
|
88
|
String hzGroupName = hzConfig.getGroupConfig().getName();
|
|
89
|
String hzGroupPassword = hzConfig.getGroupConfig().getPassword();
|
|
90
|
String hzAddress = hzConfig.getNetworkConfig().getInterfaces().getInterfaces().iterator().next() + ":" + hzConfig.getNetworkConfig().getPort();
|
|
91
|
|
|
92
|
log.info("starting index entry listener...");
|
|
93
|
log.info("System Metadata value: " + hzSystemMetadata);
|
|
94
|
log.info("Object path value: " + hzObjectPath);
|
|
95
|
log.info("Group Name: " + hzGroupName);
|
|
96
|
log.info("Group Password: " + "*****"); // don't show value
|
|
97
|
log.info("HZ Address: " + hzAddress);
|
|
98
|
|
|
99
|
// connect to the HZ cluster
|
|
100
|
ClientConfig cc = new ClientConfig();
|
|
101
|
cc.getGroupConfig().setName(hzGroupName);
|
|
102
|
cc.getGroupConfig().setPassword(hzGroupPassword);
|
|
103
|
cc.addAddress(hzAddress);
|
|
104
|
|
|
105
|
int times = 0;
|
|
106
|
while(true) {
|
|
107
|
//System.out.println("here ==================");
|
|
108
|
try {
|
|
109
|
hzClient = HazelcastClient.newHazelcastClient(cc);
|
|
110
|
break;
|
|
111
|
} catch (Exception e) {
|
|
112
|
if(times <= maxAttempts) {
|
|
113
|
log.warn("DistributedMapFactory.startHazelCastClient - the hazelcast service is not ready : "
|
|
114
|
+e.getMessage()+"\nWe will try to access it "+waitingTime/1000+" seconds later ");
|
|
115
|
try {
|
|
116
|
Thread.sleep(waitingTime);
|
|
117
|
} catch (Exception ee) {
|
|
118
|
log.warn("DistributedMapFactory.startHazelCastClient - the thread can't sleep for "+waitingTime/1000+" seconds to wait the hazelcast service");
|
|
119
|
}
|
|
120
|
|
|
121
|
} else {
|
|
122
|
throw new ServiceFailure("0000", "DistributedMapFactory.startHazelCastClient - the hazelcast service is not ready even though Metacat-index wailted for "+
|
|
123
|
maxAttempts*waitingTime/1000+" seconds. We can't get the system metadata from it and the building index can't happen this time");
|
|
124
|
}
|
|
125
|
}
|
|
126
|
times++;
|
|
127
|
//System.out.println("here ==================2");
|
|
128
|
}
|
|
129
|
|
|
130
|
|
|
131
|
}
|
|
132
|
|
|
133
|
/**
|
|
134
|
* Get the system metadata map
|
|
135
|
* @return
|
|
136
|
* @throws FileNotFoundException
|
|
137
|
* @throws ServiceFailure
|
|
138
|
*/
|
|
139
|
public static IMap<Identifier, SystemMetadata> getSystemMetadataMap() throws FileNotFoundException, ServiceFailure {
|
|
140
|
if(hzClient == null) {
|
|
141
|
startHazelCastClient();
|
|
142
|
}
|
|
143
|
return hzClient.getMap(hzSystemMetadata);
|
|
144
|
}
|
|
145
|
|
|
146
|
/**
|
|
147
|
* Get the distributed object path map from the haszel cast client.
|
|
148
|
* @return
|
|
149
|
* @throws FileNotFoundException
|
|
150
|
* @throws ServiceFailure
|
|
151
|
*/
|
|
152
|
public static IMap<Identifier, String> getObjectPathMap() throws FileNotFoundException, ServiceFailure {
|
|
153
|
if(hzClient == null) {
|
|
154
|
startHazelCastClient();
|
|
155
|
}
|
|
156
|
return hzClient.getMap(hzObjectPath);
|
|
157
|
}
|
|
158
|
|
|
159
|
}
|