01: /*
02: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
03: *
04: * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
05: *
06: * The contents of this file are subject to the terms of either the GNU
07: * General Public License Version 2 only ("GPL") or the Common
08: * Development and Distribution License("CDDL") (collectively, the
09: * "License"). You may not use this file except in compliance with the
10: * License. You can obtain a copy of the License at
11: * http://www.netbeans.org/cddl-gplv2.html
12: * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
13: * specific language governing permissions and limitations under the
14: * License. When distributing the software, include this License Header
15: * Notice in each file and include the License file at
16: * nbbuild/licenses/CDDL-GPL-2-CP. Sun designates this
17: * particular file as subject to the "Classpath" exception as provided
18: * by Sun in the GPL Version 2 section of the License file that
19: * accompanied this code. If applicable, add the following below the
20: * License Header, with the fields enclosed by brackets [] replaced by
21: * your own identifying information:
22: * "Portions Copyrighted [year] [name of copyright owner]"
23: *
24: * Contributor(s):
25: *
26: * The Original Software is NetBeans. The Initial Developer of the Original
27: * Software is Sun Microsystems, Inc. Portions Copyright 1997-2007 Sun
28: * Microsystems, Inc. All Rights Reserved.
29: *
30: * If you wish your version of this file to be governed by only the CDDL
31: * or only the GPL Version 2, indicate your decision by adding
32: * "[Contributor] elects to include this software in this distribution
33: * under the [CDDL or GPL Version 2] license." If you do not indicate a
34: * single choice of license, a recipient has the option to distribute
35: * your version of this file under either the CDDL, the GPL Version 2 or
36: * to extend the choice of license to its licensees as provided above.
37: * However, if you add GPL Version 2 code and therefore, elected the GPL
38: * Version 2 license, then the option applies only if the new code is
39: * made subject to such option by the copyright holder.
40: */
41:
42: package com.sun.data.provider.impl;
43:
44: import java.io.File;
45: import java.io.FileInputStream;
46: import java.io.IOException;
47: import java.io.ObjectInputStream;
48: import java.sql.ResultSetMetaData;
49: import java.util.logging.Level;
50: import java.util.logging.Logger;
51:
52: /**
53: *
54: * @author JohnBaker
55: */
56: public class MetaDataDeserializer {
57: private static Logger LOGGER = Logger
58: .getLogger(CachedRowSetDataProvider.class.getName());
59:
60: /**
61: * Deserializes the file that contains the serialized metadata from a result set and returns a ResultSetMetaData object
62: * @param mdFileName name of file that contains serialized metadata
63: * @return an instance of ResultSetMetaData
64: */
65: public ResultSetMetaData deserialize(String mdFileName) {
66: ResultSetMetaData resultSetMetaData = null;
67: ObjectInputStream is = null;
68: try {
69: FileInputStream fileIn = new FileInputStream(new File(
70: mdFileName));
71: is = new ObjectInputStream(fileIn);
72: resultSetMetaData = (ResultSetMetaData) is.readObject();
73: } catch (IOException ex) {
74: ex.printStackTrace();
75: } catch (ClassNotFoundException ex) {
76: ex.printStackTrace();
77: } finally {
78: try {
79: is.close();
80: } catch (IOException ex) {
81: ex.printStackTrace();
82: }
83: }
84:
85: return resultSetMetaData;
86: }
87: }
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