Source Code Cross Referenced for UITaskCollectionNode.java in  » Science » Cougaar12_4 » org » cougaar » mlm » debug » ui » 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.debug.ui 
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.debug.ui;
028:
029:        import java.util.Enumeration;
030:
031:        import org.cougaar.core.blackboard.IncrementalSubscription;
032:        import org.cougaar.core.mts.MessageAddress;
033:        import org.cougaar.planning.ldm.plan.Task;
034:        import org.cougaar.util.UnaryPredicate;
035:
036:        /** A tree for an expandable task collection.
037:         */
038:
039:        public class UITaskCollectionNode extends UITreeNode implements 
040:                UISubscriber {
041:            private UIPlugin uiPlugin;
042:            private String planName;
043:            private boolean childrenLoaded = false;
044:
045:            /** Creates a tree for the expandable task collection in
046:              the specified cluster and for the specified plan by calling
047:              the UITreeNode constructor.
048:              Listens for changes to the expandable tasks in order to dynamically
049:              update the tree.
050:              @param uiPlugin this user interface plug in
051:              @param planName name of plan for which to display tasks
052:              @param clusterId cluster from which to obtain tasks
053:              @exception UINoPlanException thrown when the plan does not exist
054:             */
055:
056:            public UITaskCollectionNode(UIPlugin uiPlugin, String planName,
057:                    MessageAddress clusterId) throws UINoPlanException {
058:                super ();
059:                this .uiPlugin = uiPlugin;
060:                this .planName = planName;
061:                super .setUserObject(uiPlugin.getPlan(planName));
062:            }
063:
064:            /** Has leaves which are the tasks.
065:              @return true
066:             */
067:
068:            public boolean isLeaf() {
069:                return false;
070:            }
071:
072:            /** Get this cluster's expandable tasks, which are all the input tasks,
073:              which are all the tasks in the Tasks container.
074:             */
075:
076:            private static UnaryPredicate taskPredicate() {
077:                return new UnaryPredicate() {
078:                    public boolean execute(Object o) {
079:                        return (o instanceof  Task);
080:                    }
081:                };
082:            }
083:
084:            /** Get the expandable tasks.  
085:             */
086:
087:            // will allready be synced on childGuard
088:            public void loadChildren() {
089:                if (!childrenLoaded) {
090:                    System.out
091:                            .println("Entered subscription for expandable tasks.");
092:                    uiPlugin.subscribe(this , taskPredicate());
093:                    childrenLoaded = true;
094:                }
095:            }
096:
097:            /** Display the plan name in the tree.
098:              @return plan name
099:             */
100:
101:            public String toString() {
102:                return planName;
103:            }
104:
105:            /** UISubscriber interface.
106:              Notified when a task is added and update the tree.
107:             */
108:
109:            // shouldn't be synchronized!
110:            public void subscriptionChanged(IncrementalSubscription container) {
111:                boolean reload = false;
112:                Enumeration added = container.getAddedList();
113:                while (added.hasMoreElements()) {
114:                    Task task = (Task) added.nextElement();
115:                    UITaskNode node = new UITaskNode(task);
116:                    if (node != null) {
117:                        //	System.out.println("Added: " + task.toString() + " at " +
118:                        //			   getChildCount());
119:                        treeModel.insertNodeInto(node, this , getChildCount());
120:                        reload = true;
121:                    }
122:                }
123:                if (reload)
124:                    treeModel.reload();
125:            }
126:
127:        }
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