01: /*
02: * <copyright>
03: *
04: * Copyright 1997-2004 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:
27: package org.cougaar.glm.callback;
28:
29: import java.util.Enumeration;
30:
31: import org.cougaar.glm.ldm.asset.TransportationNode;
32: import org.cougaar.lib.callback.UTILFilterCallbackAdapter;
33: import org.cougaar.lib.callback.UTILFilterCallbackListener;
34: import org.cougaar.util.UnaryPredicate;
35: import org.cougaar.util.log.Logger;
36:
37: /**
38: * Used to filter for new or changed generic assets.
39: *
40: * Try not to use this. There are more specific filters -
41: * for organizations and physical assets...
42: */
43:
44: public class GLMLocationCallback extends UTILFilterCallbackAdapter {
45: public GLMLocationCallback(UTILFilterCallbackListener listener,
46: Logger logger) {
47: super (listener, logger);
48: }
49:
50: protected UnaryPredicate getPredicate() {
51: return new UnaryPredicate() {
52: public boolean execute(Object o) {
53: return (o instanceof TransportationNode && ((GLMLocationListener) myListener)
54: .interestingLocation((TransportationNode) o));
55: }
56: };
57: }
58:
59: public void reactToChangedFilter() {
60: Enumeration changedList = mySub.getChangedList();
61: Enumeration addedList = mySub.getAddedList();
62:
63: if (changedList.hasMoreElements())
64: ((GLMLocationListener) myListener)
65: .handleChangedLocations(changedList);
66:
67: if (addedList.hasMoreElements())
68: ((GLMLocationListener) myListener)
69: .handleNewLocations(addedList);
70: }
71: }
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