1 package org.apache.velocity.tools.view.jsp.jspimpl;
2
3 /*
4 * Licensed to the Apache Software Foundation (ASF) under one
5 * or more contributor license agreements. See the NOTICE file
6 * distributed with this work for additional information
7 * regarding copyright ownership. The ASF licenses this file
8 * to you under the Apache License, Version 2.0 (the
9 * "License"); you may not use this file except in compliance
10 * with the License. You may obtain a copy of the License at
11 *
12 * http://www.apache.org/licenses/LICENSE-2.0
13 *
14 * Unless required by applicable law or agreed to in writing,
15 * software distributed under the License is distributed on an
16 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17 * KIND, either express or implied. See the License for the
18 * specific language governing permissions and limitations
19 * under the License.
20 */
21
22 import java.io.IOException;
23 import java.io.Writer;
24
25 import javax.servlet.jsp.JspContext;
26 import javax.servlet.jsp.JspException;
27 import javax.servlet.jsp.PageContext;
28 import javax.servlet.jsp.tagext.JspFragment;
29
30 import org.apache.velocity.context.InternalContextAdapter;
31 import org.apache.velocity.runtime.parser.node.ASTBlock;
32
33 /**
34 * Exposes a directive body block as a {@link JspFragment}, i.e. the body of SimpleTag.
35 *
36 */
37 public class VelocityJspFragment extends JspFragment
38 {
39
40 /**
41 * The JSP page context.
42 */
43 private PageContext pageContext;
44
45 /**
46 * The block to wrap.
47 */
48 private ASTBlock block;
49
50 /**
51 * The directive context.
52 */
53 private InternalContextAdapter context;
54
55 /**
56 * Constructor.
57 *
58 * @param pageContext The page context to use.
59 * @param block The block to wrap.
60 * @param context The directive context.
61 */
62 public VelocityJspFragment(PageContext pageContext, ASTBlock block,
63 InternalContextAdapter context)
64 {
65 this.pageContext = pageContext;
66 this.block = block;
67 this.context = context;
68 }
69
70 @Override
71 public void invoke(Writer out) throws JspException, IOException
72 {
73 block.render(context, out);
74 }
75
76 @Override
77 public JspContext getJspContext()
78 {
79 return pageContext;
80 }
81
82 }