Source Code Cross Referenced for UIObjectNode.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.beans.BeanInfo;
030:        import java.beans.IntrospectionException;
031:        import java.beans.Introspector;
032:        import java.beans.PropertyDescriptor;
033:        import java.lang.reflect.InvocationTargetException;
034:        import java.lang.reflect.Method;
035:        import java.util.Enumeration;
036:
037:        /** A tree node for a Object.
038:         Overrides the UITreeNode loadChildren, toString and isLeaf.
039:         */
040:
041:        public class UIObjectNode extends UITreeNode {
042:            Object obj;
043:            String prefix;
044:
045:            /** Create a tree node for the Object.
046:              @param obj for which to create tree node
047:             */
048:            public UIObjectNode(Object obj, String prefix) {
049:                super (obj);
050:                this .obj = obj;
051:                this .prefix = prefix;
052:            }
053:
054:            /** The Object is not a leaf.
055:              @return false
056:             */
057:            public boolean isLeaf() {
058:                return false;
059:            }
060:
061:            public void loadChildren() {
062:                BeanInfo info = null;
063:                Object value = null;
064:
065:                try {
066:                    info = Introspector.getBeanInfo(obj.getClass());
067:                } catch (IntrospectionException e) {
068:                    System.out.println("Introspection Exception");
069:                }
070:
071:                PropertyDescriptor[] properties = info.getPropertyDescriptors();
072:                int index = 0; // child position
073:                for (int i = 0; i < properties.length; i++) {
074:                    PropertyDescriptor pd = properties[i];
075:                    Method rm = pd.getReadMethod();
076:                    // here is where we need to determine if the attribute
077:                    // is really a string or if we need to delve further
078:                    if (rm != null) {
079:                        String methodName = rm.getName();
080:                        if (methodName.equals("getProxy"))
081:                            continue; // ignore this
082:                        //	  if (methodName.equals("isValid"))
083:                        //	    continue; //ignore this
084:                        //	  if (methodName.equals("isDeepValid"))
085:                        //	    continue; // ignore this too
086:                        try {
087:                            value = rm.invoke(obj, null);
088:                        } catch (InvocationTargetException ite) {
089:                            System.out.println("Invocation target exception: "
090:                                    + ite.getTargetException());
091:                        } catch (Exception e) {
092:                            System.out
093:                                    .println("Exception when invoking read method: "
094:                                            + e);
095:                        }
096:                        if (value != null) {
097:                            String s = methodName;
098:                            if (s.startsWith("get"))
099:                                s = s.substring(3);
100:                            else if (s.startsWith("is"))
101:                                s = s.substring(2);
102:                            s = s + ": ";
103:                            if (value instanceof  java.lang.Boolean
104:                                    || value instanceof  java.lang.String
105:                                    || value instanceof  java.lang.Long
106:                                    || value instanceof  java.lang.Integer
107:                                    || value instanceof  java.lang.Class) {
108:                                s = s + value.toString();
109:                                insert(new UIStringNode(s), index++);
110:                            } else if (value instanceof  java.util.Enumeration) {
111:                                Enumeration e = (Enumeration) value;
112:                                while (e.hasMoreElements()) {
113:                                    Object enumValue = e.nextElement();
114:                                    if (enumValue != null)
115:                                        insert(new UIObjectNode(enumValue, s),
116:                                                index++);
117:                                }
118:                            } else {
119:                                insert(new UIObjectNode(value, s), index++);
120:                            }
121:                        }
122:                    }
123:                }
124:            }
125:
126:            /** Return representation of a Object in a tree.
127:              @return Object toString
128:             */
129:
130:            public String toString() {
131:                return prefix + obj.toString();
132:            }
133:        }
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