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
|
package uk.ac.bristol.star.cdf.record;
import java.io.IOException;
/**
* Field data for CDF record of type CDF Descriptor Record.
*
* @author Mark Taylor
* @since 19 Jun 2013
*/
public class CdfDescriptorRecord extends Record {
@CdfField @OffsetField public final long gdrOffset;
@CdfField public final int version;
@CdfField public final int release;
@CdfField public final int encoding;
@CdfField public final int flags;
@CdfField public final int rfuA;
@CdfField public final int rfuB;
@CdfField public final int increment;
@CdfField public final int rfuD;
@CdfField public final int rfuE;
public final String[] copyright;
/**
* Constructor.
*
* @param plan basic record information
*/
public CdfDescriptorRecord( RecordPlan plan ) throws IOException {
super( plan, "CDR", 1 );
Buf buf = plan.getBuf();
Pointer ptr = plan.createContentPointer();
this.gdrOffset = buf.readOffset( ptr );
this.version = buf.readInt( ptr );
this.release = buf.readInt( ptr );
this.encoding = buf.readInt( ptr );
this.flags = buf.readInt( ptr );
this.rfuA = buf.readInt( ptr );
this.rfuB = buf.readInt( ptr );
this.increment = buf.readInt( ptr );
this.rfuD = buf.readInt( ptr );
this.rfuE = buf.readInt( ptr );
int crLeng = versionAtLeast( 2, 5 ) ? 256 : 1945;
this.copyright = toLines( buf.readAsciiString( ptr, crLeng ) );
checkEndRecord( ptr );
}
/**
* Determines whether this CDR represents a CDF version of equal to
* or greater than a given target version.
*
* @param targetVersion major version number to test against
* @param targetRelease minor version number to test against
* @return true iff this version is at least targetVersion.targetRelease
*/
private boolean versionAtLeast( int targetVersion, int targetRelease ) {
return this.version > targetVersion
|| this.version == targetVersion && this.release >= targetRelease;
}
}
|
