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1 | /******************************************************************************* |
2 | * Copyright (c) 2014 Ericsson | |
3 | * | |
4 | * All rights reserved. This program and the accompanying materials are made | |
5 | * available under the terms of the Eclipse Public License v1.0 which | |
6 | * accompanies this distribution, and is available at | |
7 | * http://www.eclipse.org/legal/epl-v10.html | |
8 | * | |
9 | * Contributors: | |
10 | * Matthew Khouzam - Initial API and implementation | |
11 | *******************************************************************************/ | |
12 | ||
13 | package org.eclipse.linuxtools.internal.ctf.core.event.types; | |
14 | ||
15 | import java.util.Arrays; | |
16 | import java.util.List; | |
17 | ||
18 | import org.eclipse.jdt.annotation.NonNull; | |
19 | import org.eclipse.jdt.annotation.NonNullByDefault; | |
20 | import org.eclipse.jdt.annotation.Nullable; | |
21 | import org.eclipse.linuxtools.ctf.core.event.scope.IDefinitionScope; | |
22 | import org.eclipse.linuxtools.ctf.core.event.types.AbstractArrayDefinition; | |
23 | import org.eclipse.linuxtools.ctf.core.event.types.CompoundDeclaration; | |
24 | import org.eclipse.linuxtools.ctf.core.event.types.Definition; | |
25 | import org.eclipse.linuxtools.ctf.core.event.types.IntegerDeclaration; | |
26 | import org.eclipse.linuxtools.ctf.core.event.types.IntegerDefinition; | |
27 | ||
28 | import com.google.common.collect.ImmutableList; | |
29 | ||
30 | /** | |
31 | * A fixed length string definition | |
32 | * | |
33 | * @author Matthew Khouzam | |
34 | * @since 3.1 | |
35 | */ | |
36 | @NonNullByDefault | |
37 | public final class ByteArrayDefinition extends AbstractArrayDefinition { | |
38 | ||
39 | private final byte[] fContent; | |
40 | private transient @Nullable List<Definition> fDefs; | |
41 | ||
42 | /** | |
43 | * An fixed length string declaration, it's created by sequence or array | |
44 | * defintions | |
45 | * | |
46 | * @param declaration | |
47 | * the declaration | |
48 | * @param definitionScope | |
49 | * the definition scope | |
50 | * @param fieldName | |
51 | * the field name | |
52 | * @param content | |
53 | * the string content | |
54 | */ | |
55 | public ByteArrayDefinition(CompoundDeclaration declaration, | |
56 | @Nullable IDefinitionScope definitionScope, | |
57 | String fieldName, | |
58 | byte[] content) { | |
59 | super(declaration, definitionScope, fieldName); | |
60 | fContent = content; | |
61 | ||
62 | } | |
63 | ||
64 | @Override | |
65 | public synchronized List<Definition> getDefinitions() { | |
66 | List<Definition> defs = fDefs; | |
67 | if (defs == null) { | |
68 | ImmutableList.Builder<Definition> builder = new ImmutableList.Builder<>(); | |
69 | for (int i = 0; i < fContent.length; i++) { | |
70 | IntegerDeclaration charDecl = IntegerDeclaration.UINT_8_DECL; | |
71 | String fieldName = getFieldName() + '[' + i + ']'; | |
72 | byte fieldValue = fContent[i]; | |
73 | builder.add(new IntegerDefinition(charDecl, getDefinitionScope(), fieldName, fieldValue)); | |
74 | } | |
75 | @SuppressWarnings("null") | |
76 | @NonNull List<Definition> ret = builder.build(); | |
77 | fDefs = ret; | |
78 | return ret; | |
79 | } | |
80 | ||
81 | return defs; | |
82 | } | |
83 | ||
84 | @Override | |
85 | public String toString() { | |
86 | /* | |
87 | * the string is a byte array and may contain more than the string plus | |
88 | * a null char, this will truncate it back to a null char | |
89 | */ | |
90 | int pos = -1; | |
91 | for (int i = 0; i < fContent.length; i++) { | |
92 | if (fContent[i] == 0) { | |
93 | pos = i; | |
94 | break; | |
95 | } | |
96 | } | |
97 | byte[] bytes = (pos != -1) ? (Arrays.copyOf(fContent, pos)) : fContent; | |
98 | return new String(bytes); | |
99 | } | |
100 | } |