Coverage Report

Coverage Report - org.eclipse.swtbot.swt.finder.utils.TreePath

Classes in this File

Line Coverage

Branch Coverage

Complexity

TreePath

80%

36/45

75%

15/20

3.375

 /*******************************************************************************
  * Copyright (c) 2005, 2007 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  *     IBM Corporation - initial API and implementation
  *******************************************************************************/
 package org.eclipse.swtbot.swt.finder.utils;
 
 import java.util.Arrays;
 
 import org.eclipse.swtbot.swt.finder.utils.internal.Assert;
 
 public final class TreePath {
 
         /**
          * Constant for representing an empty tree path.
          */
         public static final TreePath        EMPTY        = new TreePath(new Object[0]);
 
         private Object[]                                segments;
 
         private int                                                hash;
 
         /**
          * Constructs a path identifying a leaf node in a tree.
          * 
          * @param segments path of elements to a leaf node in a tree, starting with the root element
          */
         public TreePath(Object... segments) {
                 Assert.isNotNull(segments);
                 for (int i = 0; i < segments.length; i++) {
                         Assert.isNotNull(segments[i]);
                 }
                 this.segments = segments;
         }
 
         /**
          * Returns the element at the specified index in this path.
          * 
          * @param index index of element to return
          * @return element at the specified index
          */
         public Object getSegment(int index) {
                 return segments[index];
         }
 
         /**
          * Returns the number of elements in this path.
          * 
          * @return the number of elements in this path
          */
         public int getSegmentCount() {
                 return segments.length;
         }
 
         /**
          * Returns the last element in this path, or <code>null</code> if this path has no segments.
          * 
          * @return the last element in this path
          */
         public Object getLastSegment() {
                 if (segments.length == 0) {
                         return null;
                 }
                 return segments[segments.length - 1];
         }
 
         public int hashCode() {
                 final int prime = 31;
                 int result = 1;
                 result = prime * result + hash;
                 result = prime * result + Arrays.hashCode(segments);
                 return result;
         }
 
         public boolean equals(Object obj) {
                 if (this == obj)
                         return true;
                 if (obj == null)
                         return false;
                 if (getClass() != obj.getClass())
                         return false;
                 TreePath other = (TreePath) obj;
                 if (hash != other.hash)
                         return false;
                 if (!Arrays.equals(segments, other.segments))
                         return false;
                 return true;
         }
 
         /**
          * Returns a copy of this tree path with one segment removed from the end, or <code>null</code> if this tree path
          * has no segments.
          * 
          * @return a tree path
          */
         public TreePath getParentPath() {
                 int segmentCount = getSegmentCount();
                 if (segmentCount < 1) {
                         return null;
                 } else if (segmentCount == 1) {
                         return EMPTY;
                 }
                 Object[] parentSegments = new Object[segmentCount - 1];
                 System.arraycopy(segments, 0, parentSegments, 0, segmentCount - 1);
                 return new TreePath(parentSegments);
         }
 
         /**
          * Removes the last path component from the tree and returns it.
          * 
          * @return the last path component after removing it from the tree.
          */
         public Object pop() {
                 int segmentCount = getSegmentCount();
                 if (segmentCount == 0) {
                         return null;
                 }
                 Object lastSegment = getLastSegment();
 
                 Object[] parentSegments = new Object[segmentCount - 1];
                 System.arraycopy(segments, 0, parentSegments, 0, segmentCount - 1);
                 segments = parentSegments;
                 return lastSegment;
         }
 }

1		/*******************************************************************************
2		* Copyright (c) 2005, 2007 IBM Corporation and others.
3		* All rights reserved. This program and the accompanying materials
4		* are made available under the terms of the Eclipse Public License v1.0
5		* which accompanies this distribution, and is available at
6		* http://www.eclipse.org/legal/epl-v10.html
7		*
8		* Contributors:
9		* IBM Corporation - initial API and implementation
10		*******************************************************************************/
11		package org.eclipse.swtbot.swt.finder.utils;
12
13		import java.util.Arrays;
14
15		import org.eclipse.swtbot.swt.finder.utils.internal.Assert;
16
17	1	public final class TreePath {
18
19		/**
20		* Constant for representing an empty tree path.
21		*/
22	1	public static final TreePath EMPTY = new TreePath(new Object[0]);
23
24		private Object[] segments;
25
26		private int hash;
27
28		/**
29		* Constructs a path identifying a leaf node in a tree.
30		*
31		* @param segments path of elements to a leaf node in a tree, starting with the root element
32		*/
33	513	public TreePath(Object... segments) {
34	513	Assert.isNotNull(segments);
35	3787	for (int i = 0; i < segments.length; i++) {
36	3274	Assert.isNotNull(segments[i]);
37		}
38	513	this.segments = segments;
39	513	}
40
41		/**
42		* Returns the element at the specified index in this path.
43		*
44		* @param index index of element to return
45		* @return element at the specified index
46		*/
47		public Object getSegment(int index) {
48	1611	return segments[index];
49		}
50
51		/**
52		* Returns the number of elements in this path.
53		*
54		* @return the number of elements in this path
55		*/
56		public int getSegmentCount() {
57	512	return segments.length;
58		}
59
60		/**
61		* Returns the last element in this path, or <code>null</code> if this path has no segments.
62		*
63		* @return the last element in this path
64		*/
65		public Object getLastSegment() {
66	5	if (segments.length == 0) {
67	1	return null;
68		}
69	4	return segments[segments.length - 1];
70		}
71
72		public int hashCode() {
73		final int prime = 31;
74	0	int result = 1;
75	0	result = prime * result + hash;
76	0	result = prime * result + Arrays.hashCode(segments);
77	0	return result;
78		}
79
80		public boolean equals(Object obj) {
81	2	if (this == obj)
82	0	return true;
83	2	if (obj == null)
84	0	return false;
85	2	if (getClass() != obj.getClass())
86	0	return false;
87	2	TreePath other = (TreePath) obj;
88	2	if (hash != other.hash)
89	0	return false;
90	2	if (!Arrays.equals(segments, other.segments))
91	0	return false;
92	2	return true;
93		}
94
95		/**
96		* Returns a copy of this tree path with one segment removed from the end, or <code>null</code> if this tree path
97		* has no segments.
98		*
99		* @return a tree path
100		*/
101		public TreePath getParentPath() {
102	4	int segmentCount = getSegmentCount();
103	4	if (segmentCount < 1) {
104	1	return null;
105	3	} else if (segmentCount == 1) {
106	1	return EMPTY;
107		}
108	2	Object[] parentSegments = new Object[segmentCount - 1];
109	2	System.arraycopy(segments, 0, parentSegments, 0, segmentCount - 1);
110	2	return new TreePath(parentSegments);
111		}
112
113		/**
114		* Removes the last path component from the tree and returns it.
115		*
116		* @return the last path component after removing it from the tree.
117		*/
118		public Object pop() {
119	2	int segmentCount = getSegmentCount();
120	2	if (segmentCount == 0) {
121	1	return null;
122		}
123	1	Object lastSegment = getLastSegment();
124
125	1	Object[] parentSegments = new Object[segmentCount - 1];
126	1	System.arraycopy(segments, 0, parentSegments, 0, segmentCount - 1);
127	1	segments = parentSegments;
128	1	return lastSegment;
129		}
130		}