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1
19
20
25
26 package org.netbeans.test.editor;
27
28 import org.netbeans.junit.diff.Diff;
29 import java.io.File  ;
30 import java.io.FileOutputStream ;
31 import java.io.LineNumberReader ;
32 import java.io.FileReader ;
33 import java.io.FileWriter ;
34 import java.io.PrintStream ;
35 import java.io.PrintWriter ;
36 import java.util.ArrayList ;
37
38
42 public class LineDiff implements Diff {
43
44 private boolean ignoreCase;
45
46
47 public LineDiff(boolean ignoreCase) {
48 this.ignoreCase = ignoreCase;
49 }
50
51 public boolean getIgnoreCase() {
52 return ignoreCase;
53 }
54
55
60 private boolean compareLines(String l1,String l2) {
61 if (getIgnoreCase()) {
62 if (l1.equalsIgnoreCase(l2))
63 return true;
64 } else {
65 if (l1.equals(l2))
66 return true;
67 }
68 return false;
69 }
70
71
77 public boolean diff(String first, String second, String diff) throws java.io.IOException {
78 File fFirst = new File (first);
79 File fSecond = new File (second);
80 File fDiff = null != diff ? new File (diff) : null;
81 return diff(fFirst, fSecond, fDiff);
82 }
83
84
90 public boolean diff(java.io.File firstFile, java.io.File secondFile, java.io.File diffFile) throws java.io.IOException {
91 LineNumberReader first = new LineNumberReader (new FileReader (firstFile));
92 LineNumberReader second = new LineNumberReader (new FileReader (secondFile));
93 String firstLine;
94 String secondLine;
95
96 if (diffFile == null) {
97 while ((firstLine = first.readLine()) != null) {
98 secondLine = second.readLine();
99 if (secondLine == null) {
100 first.close();
101 second.close();
102 return true;
103 }
104 if (!compareLines(firstLine,secondLine)) {
105 first.close();
106 second.close();
107 return true;
108 }
109 }
110 } else {
111 ArrayList a1,a2,newLines,missingLines;
112
113 a1=new ArrayList ();
114 while ((firstLine = first.readLine()) != null) {
115 a1.add(firstLine);
116 }
117 a2=new ArrayList ();
118 while ((secondLine = second.readLine()) != null) {
119 a2.add(secondLine);
120 }
121 first.close();
122 second.close();
123 newLines=new ArrayList ();
124 missingLines=new ArrayList ();
125
126 int j=0,bj;
127 boolean found;
128
129 for (int i=0;i < a1.size();i++) {
130 if (j >= a2.size()) {
131 for (int k=i;k < a1.size();k++) {
132 missingLines.add(k+"> "+a1.get(k));
133 }
134 break;
135 }
136 firstLine=(String )(a1.get(i));
137 secondLine=(String )(a2.get(j));
138 if (!compareLines(firstLine,secondLine)) {
139 found=false;
140 for (int k=j;k < a2.size();k++) {
141 secondLine = (String )(a2.get(k));
142 if (compareLines(firstLine,secondLine)) {
143 for (int l=j;l < k;l++) {
144 newLines.add(l+"> "+a2.get(l));
145 }
146 j=k;
147 found=true;
148 break;
149 }
150 }
151 if (!found) {
152 missingLines.add(i+"> "+firstLine);
153 j--;
154 }
155 }
156 j++;
157 }
158 if (j < a2.size()) {
159 for (int i=j;i < a2.size();i++) {
160 newLines.add(i+"> "+a2.get(i));
161 }
162 }
163
164 if (missingLines.size() > 0 || newLines.size() > 0) {
165 PrintStream pw=null;
166 pw=new PrintStream (new FileOutputStream (diffFile));
167 if (missingLines.size() > 0) {
169 pw.println("-----------------------------Missing Lines:-----");
170 for (int i=0;i < missingLines.size();i++) {
171 pw.println(missingLines.get(i));
172 }
173 }
174 if (newLines.size() > 0) {
175 pw.println("-----------------------------New Lines:---------");
176 for (int i=0;i < newLines.size();i++) {
177 pw.println(newLines.get(i));
178 }
179 }
180 pw.close();
181 return true;
182 }
183 }
184 return false;
185 }
186
187 public static void main(String [] argv) {
188 try {
189 LineDiff diff=new LineDiff(true);
190 diff.diff("/tmp/diff/test.pass","/tmp/diff/test.ref","/tmp/diff/test.diff");
191 } catch (Exception ex) {
192 ex.printStackTrace();
193 }
194 }
195 }
196 |
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