01: /*
02: * <copyright>
03: *
04: * Copyright 2003-2004 BBNT Solutions, LLC
05: * under sponsorship of the Defense Advanced Research Projects
06: * Agency (DARPA).
07: *
08: * You can redistribute this software and/or modify it under the
09: * terms of the Cougaar Open Source License as published on the
10: * Cougaar Open Source Website (www.cougaar.org).
11: *
12: * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
13: * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
14: * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
15: * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
16: * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
17: * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
18: * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
19: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
20: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
22: * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23: *
24: * </copyright>
25: */
26: package org.cougaar.tools.server.system.linux;
27:
28: import org.cougaar.tools.server.system.JavaThreadDumper;
29: import org.cougaar.tools.server.system.ProcessKiller;
30: import org.cougaar.tools.server.system.ProcessLauncher;
31: import org.cougaar.tools.server.system.ProcessStatusReader;
32: import org.cougaar.tools.server.system.SystemAccessFactory;
33:
34: /**
35: * Linux-specific factory for system access.
36: */
37: public class LinuxSystemAccessFactory extends SystemAccessFactory {
38:
39: private static final LinuxSystemAccessFactory SINGLETON = new LinuxSystemAccessFactory();
40:
41: private final LinuxProcessLauncher lpl;
42: private final LinuxJavaThreadDumper ljtd;
43: private final LinuxProcessStatusReader lpsr;
44: private final LinuxProcessKiller lpk;
45:
46: /**
47: * Obtain an instance of the Linux-specific factory.
48: */
49: public static LinuxSystemAccessFactory getLinuxInstance() {
50: return SINGLETON;
51: }
52:
53: /**
54: * @see #getLinuxInstance()
55: */
56: private LinuxSystemAccessFactory() {
57: // assert "os.name" == Linux?
58: //
59: // may need to check system configuration here!
60: // (e.g. "where is 'ps' installed?", etc)
61:
62: // for now these are singleton utilities -- in the
63: // future we may need to create an instance per
64: // use.
65: lpl = new LinuxProcessLauncher();
66: ljtd = new LinuxJavaThreadDumper();
67: lpsr = new LinuxProcessStatusReader();
68: lpk = new LinuxProcessKiller();
69: }
70:
71: public ProcessLauncher createProcessLauncher() {
72: return lpl;
73: }
74:
75: public JavaThreadDumper createJavaThreadDumper() {
76: return ljtd;
77: }
78:
79: public ProcessStatusReader createProcessStatusReader() {
80: return lpsr;
81: }
82:
83: public ProcessKiller createProcessKiller() {
84: return lpk;
85: }
86:
87: }
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