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1
3 package jodd.util;
4
5 import jodd.io.FastByteArrayOutputStream;
6 import jodd.io.StreamUtil;
7
8 import java.io.*;
9 import java.util.Arrays  ;
10
11
14 public class ObjectUtil {
15
16
22 public static boolean equals(Object obj1, Object obj2) {
23 return (obj1 != null) ? (obj1.equals(obj2)) : (obj2 == null);
24 }
25
26
27
31 public static boolean equalsEx(Object obj1, Object obj2) {
32 if (obj1 == null) {
33 return (obj2 == null);
34 }
35 if (obj2 == null) {
36 return false;
37 }
38 if (obj1.getClass().isArray()) {
39 if (obj2.getClass().isArray() == false) {
40 return false;
41 }
42 return Arrays.equals((Object [])obj1, (Object [])obj2);
43 } else {
44 return obj1.equals(obj2);
45 }
46 }
47
48
53 public static boolean equalsType(Object object, Object thiz) {
54 return (object != null) && (object.getClass().equals(thiz.getClass()));
55 }
56
57
59
62 public static Object clone(Object source) throws CloneNotSupportedException {
63 if (source == null) {
64 return null;
65 }
66 try {
67 return ReflectUtil.invokeDeclared(source, "clone", new Class []{}, new Object [] {});
68 } catch (Exception ex) {
69 throw new CloneNotSupportedException ("Can't invoke clone() on object due to: " + ex.getMessage());
70 }
71 }
72
73
74
76
79 public static Object cloneViaSerialization(Serializable obj) throws IOException, ClassNotFoundException {
80 FastByteArrayOutputStream bytes = new FastByteArrayOutputStream();
81 ObjectOutputStream out = null;
82 try {
83 out = new ObjectOutputStream(bytes);
84 out.writeObject(obj);
85 } finally {
86 StreamUtil.close(out);
87 }
88
89 ObjectInputStream in = null;
90 Object objCopy = null;
91 try {
92 in = new ObjectInputStream(new ByteArrayInputStream(bytes.toByteArray()));
93 objCopy = in.readObject();
94 } finally {
95 StreamUtil.close(in);
96 }
97 return objCopy;
98 }
99
100
101
103
104
107 public static void writeObject(String dest, Object object) throws IOException {
108 writeObject(new File(dest), object);
109 }
110
111
114 public static void writeObject(File dest, Object object) throws IOException {
115 BufferedOutputStream bos = null;
116 ObjectOutputStream oos = null;
117 try {
118 bos = new BufferedOutputStream(new FileOutputStream(dest));
119 oos = new ObjectOutputStream(bos);
120 oos.writeObject(object);
121 } finally {
122 StreamUtil.close(oos);
123 StreamUtil.close(bos);
124 }
125 }
126
127
130 public static Object readObject(String source) throws IOException, ClassNotFoundException {
131 return readObject(new File(source));
132 }
133
134
137 public static Object readObject(File source) throws IOException, ClassNotFoundException {
138 Object result = null;
139 BufferedInputStream bis = null;
140 ObjectInputStream ois = null;
141 try {
142 bis = new BufferedInputStream(new FileInputStream(source));
143 ois = new ObjectInputStream(bis);
144 result = ois.readObject();
145 } finally {
146 StreamUtil.close(ois);
147 StreamUtil.close(bis);
148 }
149 return result;
150 }
151
152
153
155
158 public static byte[] objectToByteArray(Object obj) throws IOException {
159 FastByteArrayOutputStream bos = new FastByteArrayOutputStream();
160 ObjectOutputStream oos = null;
161 try {
162 oos = new ObjectOutputStream(bos);
163 oos.writeObject(obj);
164 oos.flush();
165 } finally {
166 StreamUtil.close(oos);
167 }
168 return bos.toByteArray();
169 }
170
171
174 public static Object byteArrayToObject(byte[] data) throws IOException, ClassNotFoundException {
175 Object retObj = null;
176 ByteArrayInputStream bais = new ByteArrayInputStream(data);
177 ObjectInputStream ois = null;
178 try {
179 ois = new ObjectInputStream(bais);
180 retObj = ois.readObject();
181 } finally {
182 StreamUtil.close(ois);
183 }
184 return retObj;
185 }
186 }
187 |
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