blob: e40aa1b4fc17ea0cc8db8e2e97af0752a2102c25 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
|
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/* $Id: $ */
package org.apache.fop.render.afp.modca;
import java.io.IOException;
import java.io.OutputStream;
/**
* A base class that carries out early preparation of structured field data
* for the AFP object (so the data length can be pre-calculated)
*/
public abstract class AbstractPreparedAFPObject extends AbstractNamedAFPObject
implements PreparedAFPObject {
/** structured field data to be written */
protected byte[] data = null;
/**
* Default constructor
*/
public AbstractPreparedAFPObject() {
}
/**
* Named constructor
* @param name the name of this AFP object
*/
public AbstractPreparedAFPObject(String name) {
super(name);
}
/**
* {@inheritDoc}
*/
protected void writeContent(OutputStream os) throws IOException {
super.writeContent(os); // write triplets
if (this.data != null) {
os.write(this.data);
}
}
/**
* @return the start data length of this structured field
*/
protected int getStartDataLength() {
return 0;
}
/**
* @return the data length of the structured field data of this AFP object
*/
public int getDataLength() {
if (this.data != null) {
return this.data.length;
}
return 0;
}
/**
* @return the structured field length
*/
protected int getLength() {
return getStartDataLength() + getTripletDataLength() + getDataLength();
}
}
|
