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.logistics.plugin.manager;
27:
28: import org.cougaar.core.adaptivity.ConstrainingClause;
29: import org.cougaar.core.adaptivity.ConstraintOperator;
30: import org.cougaar.core.adaptivity.ConstraintPhrase;
31: import org.cougaar.core.adaptivity.InterAgentOperatingModePolicy;
32: import org.cougaar.core.adaptivity.OMCRangeList;
33: import org.cougaar.core.adaptivity.PolicyKernel;
34:
35: /**
36: * Relay used to notify logistics community of changes in load status
37: **/
38: public class FallingBehindPolicy extends InterAgentOperatingModePolicy {
39: public static String FALLING_BEHIND = "FallingBehind";
40:
41: public FallingBehindPolicy(double fallingBehindValue) {
42: super (ConstrainingClause.TRUE_CLAUSE, new ConstraintPhrase[0]);
43: setFallingBehindValue(fallingBehindValue);
44: }
45:
46: /**
47: * Gets the name of the Agent whose load status is reported.
48: *
49: * @return String Name of the agent
50: */
51: public void setFallingBehindValue(double fallingBehindValue) {
52: ConstraintPhrase[] omConstraints = new ConstraintPhrase[1];
53: omConstraints[0] = new ConstraintPhrase(FALLING_BEHIND,
54: ConstraintOperator.EQUAL, new OMCRangeList(
55: fallingBehindValue));
56:
57: PolicyKernel policyKernel = new PolicyKernel(
58: ConstrainingClause.TRUE_CLAUSE, omConstraints);
59:
60: setPolicyKernel(policyKernel);
61: }
62:
63: /**
64: * appliesToThisAgent - return true if FallingBehindPolicy applies to
65: * this Agent.
66: * Overrides default dehaviour - FallingBehindPolicyies are applied at the
67: * source as well at the target Agents.
68: */
69: public boolean appliesToThisAgent() {
70: if (getSource() == null) {
71: /* Policy originated here - Am I also one of the targets?
72: * (KLUDGE) - should probably use the community code to resolves the targets
73: * and then look to see whether this agent is included.
74: */
75: return true;
76: } else {
77: return true;
78: }
79:
80: }
81: }
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