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;
27:
28: import java.io.BufferedReader;
29: import java.io.IOException;
30: import java.io.InputStream;
31:
32: /**
33: * Sent a "\-BREAK" to a process, which will make a JVM
34: * print a full thread dump to StdOut.
35: * <p>
36: * Note that this is <b>not</b> safe if the pid isn't
37: * a JVM!
38: */
39: public interface JavaThreadDumper {
40:
41: /**
42: * Get the OS-specific command line for invoking the
43: * Java Thread-Dump.
44: */
45: String[] getCommandLine(long pid);
46:
47: /**
48: * Parse the output of the <tt>getCommandLine(..)</tt>
49: * process, return <tt>true</tt> if it looks like the
50: * Thread-Dump took place.
51: */
52: boolean parseResponse(BufferedReader br) throws IOException;
53:
54: /**
55: * Equivalent to wrapping the <code>InputStream</code>
56: * in a BufferedReader and then calling
57: * <tt>parseResponse(br)</tt>.
58: */
59: boolean parseResponse(InputStream in) throws IOException;
60:
61: }
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