1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 */
19 package org.apache.myfaces.view.facelets.compiler;
20
21 import java.io.IOException;
22 import javax.el.ELContext;
23 import javax.el.ExpressionFactory;
24 import javax.faces.context.FacesContext;
25
26 /**
27 * This instruction group literal and non literal text instructions.
28 * Used to avoid text space compression, but note it is only used by
29 * TextUnit when there is no inline escape (jspx) and compression enabled.
30 *
31 */
32 final class CompositeTextInstruction implements Instruction
33 {
34 private Instruction[] instructions;
35
36 public CompositeTextInstruction(Instruction[] instructions)
37 {
38 this.instructions = instructions;
39 }
40
41 @Override
42 public void write(FacesContext context) throws IOException
43 {
44 for (Instruction i : instructions)
45 {
46 i.write(context);
47 }
48 }
49
50 @Override
51 public Instruction apply(ExpressionFactory factory, ELContext ctx)
52 {
53 Instruction[] array = new Instruction[instructions.length];
54 for (int i = 0; i < instructions.length; i++)
55 {
56 array[i] = instructions[i].apply(factory, ctx);
57 }
58 return new CompositeTextInstruction(array);
59 }
60
61 @Override
62 public boolean isLiteral()
63 {
64 boolean literal = true;
65 for (Instruction i : instructions)
66 {
67 if (!i.isLiteral())
68 {
69 literal = false;
70 break;
71 }
72 }
73 return literal;
74 }
75
76 }