Source Code Cross Referenced for AlternateAllocationAssessorPlugin.java in  » Science » Cougaar12_4 » org » cougaar » mlm » plugin » sample » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Science » Cougaar12_4 » org.cougaar.mlm.plugin.sample 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * <copyright>
003:         *  
004:         *  Copyright 1997-2004 BBNT Solutions, LLC
005:         *  under sponsorship of the Defense Advanced Research Projects
006:         *  Agency (DARPA).
007:         * 
008:         *  You can redistribute this software and/or modify it under the
009:         *  terms of the Cougaar Open Source License as published on the
010:         *  Cougaar Open Source Website (www.cougaar.org).
011:         * 
012:         *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
013:         *  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
014:         *  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
015:         *  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
016:         *  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
017:         *  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
018:         *  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
019:         *  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
020:         *  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
021:         *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
022:         *  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
023:         *  
024:         * </copyright>
025:         */
026:
027:        package org.cougaar.mlm.plugin.sample;
028:
029:        import java.awt.BorderLayout;
030:        import java.awt.Container;
031:        import java.text.NumberFormat;
032:        import java.util.Comparator;
033:        import java.util.Enumeration;
034:        import java.util.HashMap;
035:        import java.util.TreeSet;
036:
037:        import javax.swing.JFrame;
038:        import javax.swing.JLabel;
039:        import javax.swing.JScrollPane;
040:        import javax.swing.JTable;
041:        import javax.swing.table.AbstractTableModel;
042:
043:        import org.cougaar.core.blackboard.IncrementalSubscription;
044:        import org.cougaar.planning.ldm.plan.Alert;
045:        import org.cougaar.planning.ldm.plan.Allocation;
046:        import org.cougaar.planning.ldm.plan.AllocationResult;
047:        import org.cougaar.planning.ldm.plan.NewAlert;
048:        import org.cougaar.planning.ldm.plan.NewAlertParameter;
049:        import org.cougaar.planning.plugin.legacy.SimplePlugin;
050:        import org.cougaar.util.UnaryPredicate;
051:
052:        /**
053:         * The AllocationsAssessorPlugin publishes an Alert for each
054:         * failed allocations in it's collection
055:         *
056:         *
057:         */
058:
059:        public class AlternateAllocationAssessorPlugin extends SimplePlugin {
060:            /** frame displaying messages **/
061:            static JFrame frame;
062:
063:            Comparator taskComparator = new Comparator() {
064:                public int compare(Object l, Object r) {
065:                    Allocation la = (Allocation) l;
066:                    Allocation ra = (Allocation) r;
067:                    return la.getTask().getUID().compareTo(
068:                            ra.getTask().getUID());
069:                }
070:            };
071:
072:            private class MyTreeSet extends TreeSet {
073:                public MyTreeSet(Comparator comparator) {
074:                    super (comparator);
075:                }
076:
077:                public synchronized boolean add(Object o) {
078:                    allocationArray = null;
079:                    return super .add(o);
080:                }
081:
082:                public synchronized boolean remove(Object o) {
083:                    allocationArray = null;
084:                    return super .remove(o);
085:                }
086:            }
087:
088:            private Allocation[] allocationArray = null;
089:
090:            private MyTreeSet allocations = new MyTreeSet(taskComparator);
091:
092:            private Allocation[] getAllocationArray() {
093:                if (allocationArray == null) {
094:                    allocationArray = (Allocation[]) allocations
095:                            .toArray(new Allocation[allocations.size()]);
096:                }
097:                return allocationArray;
098:            }
099:
100:            private NumberFormat confidenceFormat = NumberFormat
101:                    .getPercentInstance();
102:
103:            private class MyTableModel extends AbstractTableModel {
104:                public int getRowCount() {
105:                    return allocations.size();
106:                }
107:
108:                public int getColumnCount() {
109:                    return 3;
110:                }
111:
112:                public String getColumnName(int column) {
113:                    switch (column) {
114:                    case 0:
115:                        return "Task ID";
116:                    case 1:
117:                        return "Status";
118:                    case 2:
119:                        return "Confidence";
120:                    }
121:                    return null;
122:                }
123:
124:                public Object getValueAt(int row, int column) {
125:                    synchronized (allocations) {
126:                        Allocation[] ary = getAllocationArray();
127:                        if (row >= ary.length)
128:                            return null;
129:                        Allocation a = ary[row];
130:                        AllocationResult ar = a.getEstimatedResult();
131:                        switch (column) {
132:                        case 0: // The task id
133:                            return a.getTask().getUID();
134:                        case 1: // The failed status
135:                            return ar.isSuccess() ? "Succeeded" : "Failed";
136:                        case 2: // The confidence rating
137:                            return confidenceFormat.format(ar
138:                                    .getConfidenceRating());
139:                        }
140:                        return "???";
141:                    }
142:                }
143:            }
144:
145:            /** Display Allocation Results  **/
146:            MyTableModel tableModel = new MyTableModel();
147:            JTable allocationList = new JTable(tableModel);
148:            JLabel allocCountLabel = new JLabel("   0 failed allocations");
149:            JScrollPane scrollPane = new JScrollPane(allocationList,
150:                    JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,
151:                    JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
152:
153:            /** Subscription to hold collection of input tasks **/
154:            private IncrementalSubscription myalloc;
155:
156:            /** Keep track of Allocations that come through.  **/
157:            private HashMap allocationAlerts = new HashMap();
158:
159:            /** Look for allocations **/
160:            private static UnaryPredicate allocPred() {
161:                return new UnaryPredicate() {
162:                    public boolean execute(Object o) {
163:                        return (o instanceof  Allocation);
164:                    }
165:                };
166:            }
167:
168:            /** GUI to display failed allocation info **/
169:            private void createGUI() {
170:                frame = new JFrame("AlternateAllocationAssessorPlugin for "
171:                        + getMessageAddress());
172:                frame.setLocation(0, 160);
173:                Container panel = frame.getContentPane();
174:                panel.add(allocCountLabel, BorderLayout.NORTH);
175:                panel.add(scrollPane, BorderLayout.CENTER);
176:                frame.pack();
177:                frame.setVisible(true);
178:            }
179:
180:            /**
181:             * Overrides the setupSubscriptions() in the SimplePlugin.
182:             */
183:            protected void setupSubscriptions() {
184:                getSubscriber().setShouldBePersisted(false);
185:                myalloc = (IncrementalSubscription) subscribe(allocPred());
186:                createGUI();
187:            }
188:
189:            private void updateGUI() {
190:                allocCountLabel.setText(allocationAlerts.size()
191:                        + " failed allocations");
192:            }
193:
194:            /** Creates and publishes alert for failed allocations **/
195:            public void createAlert(Allocation alloc) {
196:                if (allocationAlerts.containsKey(alloc))
197:                    return;
198:                NewAlert alert = theLDMF.newAlert();
199:                NewAlertParameter[] params = new NewAlertParameter[1];
200:                params[0] = theLDMF.newAlertParameter();
201:                params[0].setParameter(alloc);
202:                params[0].setDescription("Failed Allocation");
203:                alert
204:                        .setAlertText("Allocation Failed for :"
205:                                + alloc.toString());
206:                alert.setAlertParameters(params);
207:                publishAdd(alert);
208:                allocationAlerts.put(alloc, alert);
209:            }
210:
211:            public void removeAlert(Allocation alloc) {
212:                Alert alert = (Alert) allocationAlerts.get(alloc);
213:                if (alert == null)
214:                    return; // Shouldn't happen
215:                publishRemove(alert);
216:                allocationAlerts.remove(alloc);
217:            }
218:
219:            private void checkAllocations(Enumeration en) {
220:                while (en.hasMoreElements()) {
221:                    Allocation alloc = (Allocation) en.nextElement();
222:                    AllocationResult ar = alloc.getEstimatedResult();
223:                    if (ar != null) {
224:                        if (!allocations.contains(alloc)) {
225:                            allocations.add(alloc);
226:                            tableModel.fireTableDataChanged();
227:                        } else {
228:                            tableModel.fireTableDataChanged();
229:                        }
230:                        if (ar.isSuccess()) {
231:                            removeAlert(alloc);
232:                        } else {
233:                            createAlert(alloc);
234:                        }
235:                    } else {
236:                        removeAllocation(alloc);
237:                    }
238:                }
239:            }
240:
241:            private void removeAllocation(Allocation alloc) {
242:                removeAlert(alloc);
243:                if (allocations.contains(alloc)) {
244:                    allocations.remove(alloc);
245:                    tableModel.fireTableDataChanged();
246:                }
247:            }
248:
249:            /* CCV2 execute method */
250:            /* This will be called every time a alloc matches the above predicate */
251:            /* Note: Failed Allocations only come through on the changed list. 
252:               Since Allocations are changed by other Plugins after we see them
253:               here, we need to keep track of the ones we've seen so we don't 
254:               act on them more than once.
255:             */
256:            public synchronized void execute() {
257:                checkAllocations(myalloc.getAddedList());
258:                checkAllocations(myalloc.getChangedList());
259:                Enumeration e = myalloc.getRemovedList();
260:                while (e.hasMoreElements()) {
261:                    removeAllocation((Allocation) e.nextElement());
262:                }
263:            }
264:        }
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