|
1
|
/**
|
|
2
|
* '$RCSfile$'
|
|
3
|
* Copyright: 2004 University of New Mexico and the
|
|
4
|
* Regents of the University of California
|
|
5
|
*
|
|
6
|
* '$Author: costa $'
|
|
7
|
* '$Date: 2009-07-27 14:47:44 -0700 (Mon, 27 Jul 2009) $'
|
|
8
|
* '$Revision: 4999 $'
|
|
9
|
*
|
|
10
|
* This program is free software; you can redistribute it and/or modify
|
|
11
|
* it under the terms of the GNU General Public License as published by
|
|
12
|
* the Free Software Foundation; either version 2 of the License, or
|
|
13
|
* (at your option) any later version.
|
|
14
|
*
|
|
15
|
* This program is distributed in the hope that it will be useful,
|
|
16
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
17
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
18
|
* GNU General Public License for more details.
|
|
19
|
*
|
|
20
|
* You should have received a copy of the GNU General Public License
|
|
21
|
* along with this program; if not, write to the Free Software
|
|
22
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
23
|
*/
|
|
24
|
|
|
25
|
package edu.ucsb.nceas.metacat.harvesterClient;
|
|
26
|
|
|
27
|
import javax.servlet.*;
|
|
28
|
import javax.servlet.http.*;
|
|
29
|
/**
|
|
30
|
* HarvesterServlet class allows Harvester to be run as a background
|
|
31
|
* process. This eliminates the need to run Harvester in a terminal window.
|
|
32
|
* To activate this servlet, uncomment the HarvesterServlet entry in the
|
|
33
|
* appropriate 'lib/web.xml.tomcat*' file.
|
|
34
|
*
|
|
35
|
* @author costa
|
|
36
|
*/
|
|
37
|
public class HarvesterServlet extends HttpServlet implements Runnable {
|
|
38
|
|
|
39
|
/*
|
|
40
|
* Class fields
|
|
41
|
*/
|
|
42
|
private static final String SCHEMA_DIR = "harvester";
|
|
43
|
private static String SCHEMA_LOCATION;
|
|
44
|
private static final String SCHEMA_NAME = "harvestList.xsd";
|
|
45
|
static final long serialVersionUID = 0; // Needed for Eclipse warning.
|
|
46
|
|
|
47
|
/*
|
|
48
|
* Object fields
|
|
49
|
*/
|
|
50
|
Thread harvesterThread; // background Harvester thread
|
|
51
|
|
|
52
|
|
|
53
|
/**
|
|
54
|
* When the thread is destroyed, sets the Harvester.keepRunning flag to false.
|
|
55
|
*/
|
|
56
|
public void destroy() {
|
|
57
|
Harvester.setKeepRunning(false);
|
|
58
|
}
|
|
59
|
|
|
60
|
|
|
61
|
/**
|
|
62
|
* Initializes the servlet. Reads properties and initializes object fields.
|
|
63
|
*
|
|
64
|
* @throws ServletException
|
|
65
|
*/
|
|
66
|
public void init(ServletConfig config) throws ServletException {
|
|
67
|
ServletContext context = null;
|
|
68
|
String fileSeparator = System.getProperty("file.separator");
|
|
69
|
String schemaPath;
|
|
70
|
|
|
71
|
super.init(config);
|
|
72
|
context = config.getServletContext();
|
|
73
|
schemaPath = context.getRealPath(SCHEMA_DIR) + fileSeparator + SCHEMA_NAME;
|
|
74
|
SCHEMA_LOCATION = "eml://ecoinformatics.org/harvestList " + schemaPath;
|
|
75
|
harvesterThread = new Thread(this);
|
|
76
|
harvesterThread.setPriority(Thread.MIN_PRIORITY); // be a good citizen
|
|
77
|
harvesterThread.start();
|
|
78
|
}
|
|
79
|
|
|
80
|
|
|
81
|
/**
|
|
82
|
* Runs the Harvester main program in a separate thread. First sleeps for
|
|
83
|
* 30 seconds to give Metacat a chance to fully initialize.
|
|
84
|
*/
|
|
85
|
public void run() {
|
|
86
|
String[] args = new String[2];
|
|
87
|
args[0] = "false"; // Set to true if in command line mode or test mode
|
|
88
|
args[1] = SCHEMA_LOCATION;
|
|
89
|
|
|
90
|
try {
|
|
91
|
Thread.sleep(30000); // Sleep 30 seconds before starting Harvester
|
|
92
|
}
|
|
93
|
catch (InterruptedException e) {
|
|
94
|
System.err.println("InterruptedException: " + e.getMessage());
|
|
95
|
}
|
|
96
|
|
|
97
|
Harvester.main(args);
|
|
98
|
}
|
|
99
|
|
|
100
|
}
|