1 /*
2 * The Apache Software License, Version 1.1
3 *
4 * Copyright (c) 1999 The Apache Software Foundation. All rights
5 * reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 *
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 *
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in
16 * the documentation and/or other materials provided with the
17 * distribution.
18 *
19 * 3. The end-user documentation included with the redistribution, if
20 * any, must include the following acknowlegement:
21 * "This product includes software developed by the
22 * Apache Software Foundation (http://www.apache.org/)."
23 * Alternately, this acknowlegement may appear in the software itself,
24 * if and wherever such third-party acknowlegements normally appear.
25 *
26 * 4. The names "The Jakarta Project", "Tomcat", and "Apache Software
27 * Foundation" must not be used to endorse or promote products derived
28 * from this software without prior written permission. For written
29 * permission, please contact apache@apache.org.
30 *
31 * 5. Products derived from this software may not be called "Apache"
32 * nor may "Apache" appear in their names without prior written
33 * permission of the Apache Group.
34 *
35 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
36 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
37 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
38 * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
39 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
40 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
41 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
42 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
43 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
44 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
45 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
46 * SUCH DAMAGE.
47 * ====================================================================
48 *
49 * This software consists of voluntary contributions made by many
50 * individuals on behalf of the Apache Software Foundation. For more
51 * information on the Apache Software Foundation, please see
52 * <http://www.apache.org/>.
53 *
54 */
55 package org.apache.commons.jelly.tags.sql;
56
57 import java.util.*;
58 import java.sql.Time;
59 import java.sql.Date;
60 import java.sql.Timestamp;
61 import javax.servlet.jsp.jstl.sql.SQLExecutionTag;
62
63 import org.apache.commons.jelly.JellyContext;
64 import org.apache.commons.jelly.JellyException;
65 import org.apache.commons.jelly.TagSupport;
66 import org.apache.commons.jelly.XMLOutput;
67 import org.apache.commons.jelly.tags.Resources;
68
69 /***
70 * <p>Tag handler for <Param> in JSTL, used to set
71 * parameter values for a SQL statement.</p>
72 *
73 * @author Justyna Horwat
74 */
75
76 public class DateParamTag extends TagSupport {
77
78 //**********************************************************************
79 // Private constants
80
81 private static final String TIMESTAMP_TYPE = "timestamp";
82 private static final String TIME_TYPE = "time";
83 private static final String DATE_TYPE = "date";
84
85 //*********************************************************************
86 // Protected state
87
88 protected String type;
89 protected java.util.Date value;
90
91 //*********************************************************************
92 // Constructor
93
94 public DateParamTag() {
95 }
96
97 //*********************************************************************
98 // Properties
99
100 public void setValue(Date value) {
101 this.value = value;
102 }
103
104 public void setType(String type) {
105 this.type = type;
106 }
107
108 //*********************************************************************
109 // Tag logic
110
111 public void doTag(XMLOutput output) throws Exception {
112 SQLExecutionTag parent =
113 (SQLExecutionTag) findAncestorWithClass(this, SQLExecutionTag.class);
114 if (parent == null) {
115 throw new JellyException(Resources.getMessage("SQL_PARAM_OUTSIDE_PARENT"));
116 }
117
118 if (value != null) {
119 convertValue();
120 }
121
122 parent.addSQLParameter(value);
123 }
124
125 //*********************************************************************
126 // Private utility methods
127
128 private void convertValue() throws JellyException {
129
130 if ((type == null) || (type.equalsIgnoreCase(TIMESTAMP_TYPE))) {
131 if (!(value instanceof java.sql.Timestamp)) {
132 value = new java.sql.Timestamp(value.getTime());
133 }
134 }
135 else if (type.equalsIgnoreCase(TIME_TYPE)) {
136 if (!(value instanceof java.sql.Time)) {
137 value = new java.sql.Time(value.getTime());
138 }
139 }
140 else if (type.equalsIgnoreCase(DATE_TYPE)) {
141 if (!(value instanceof java.sql.Date)) {
142 value = new java.sql.Date(value.getTime());
143 }
144 }
145 else {
146 throw new JellyException(
147 Resources.getMessage("SQL_DATE_PARAM_INVALID_TYPE", type));
148 }
149 }
150 }
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