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a3fc8213 AM |
1 | package org.eclipse.linuxtools.tmf.core.ctfadaptor; |
2 | ||
3 | import org.eclipse.linuxtools.ctf.core.trace.CTFTraceReader; | |
4 | import org.eclipse.linuxtools.ctf.core.trace.StreamInputReader; | |
5 | import org.eclipse.linuxtools.tmf.core.trace.ITmfContext; | |
6 | import org.eclipse.linuxtools.tmf.core.trace.ITmfLocation; | |
7 | ||
8 | public class CtfIterator extends CTFTraceReader implements ITmfContext, | |
9 | Comparable<CtfIterator> { | |
10 | ||
11 | private final CtfTmfTrace ctfTmfTrace; | |
12 | ||
13 | private CtfLocation curLocation; | |
14 | private long curRank; | |
15 | ||
16 | /** | |
17 | * Create a new CTF trace iterator, which initially points at the first | |
18 | * event in the trace. | |
19 | * | |
20 | * @param trace | |
21 | */ | |
22 | public CtfIterator(CtfTmfTrace trace) { | |
23 | super(trace.getCTFTrace()); | |
24 | this.ctfTmfTrace = trace; | |
25 | ||
26 | // FIXME put the real stuff here... | |
27 | this.curLocation = new CtfLocation(trace.getStartTime()); | |
28 | this.curRank = 0; | |
29 | } | |
30 | ||
31 | public CtfIterator(CtfTmfTrace trace, long timestampValue, long rank) { | |
32 | super(trace.getCTFTrace()); | |
33 | this.ctfTmfTrace = trace; | |
34 | this.curLocation = (new CtfLocation( | |
35 | this.getCurrentEvent().getTimestampValue())); | |
36 | if (this.getCurrentEvent().getTimestampValue() != timestampValue) { | |
37 | this.seek(timestampValue); | |
38 | } | |
39 | ||
40 | this.curRank = rank; | |
41 | } | |
42 | ||
43 | public CtfTmfTrace getCtfTmfTrace() { | |
44 | return ctfTmfTrace; | |
45 | } | |
46 | ||
47 | public CtfTmfEvent getCurrentEvent() { | |
48 | StreamInputReader top = super.prio.peek(); | |
49 | if (top != null) { | |
50 | return new CtfTmfEvent(top.getCurrentEvent(), top, ctfTmfTrace); | |
51 | } | |
52 | return null; | |
53 | } | |
54 | ||
55 | @Override | |
56 | public boolean seek(long timestamp) { | |
57 | boolean ret = false; | |
6a98424f MK |
58 | long offsetTimestamp = timestamp - this.getCtfTmfTrace().getCTFTrace().getOffset(); |
59 | if( offsetTimestamp < 0 ) { | |
60 | ret = super.seek(timestamp); | |
61 | } else { | |
62 | ret = super.seek(offsetTimestamp); | |
63 | } | |
a3fc8213 AM |
64 | |
65 | if (ret) { | |
66 | curLocation.setLocation(getCurrentEvent().getTimestampValue()); | |
67 | } | |
68 | return ret; | |
69 | } | |
70 | ||
71 | @Override | |
72 | public long getRank() { | |
73 | final CtfTmfEvent current = getCurrentEvent(); | |
74 | if (current != null) { | |
75 | return getCurrentEvent().getRank(); | |
76 | } | |
77 | return 0; | |
78 | } | |
79 | ||
80 | @Override | |
81 | public void setRank(long rank) { | |
82 | // FIXME NYI | |
83 | } | |
84 | ||
85 | /* | |
86 | * (non-Javadoc) | |
87 | * | |
88 | * @see org.eclipse.linuxtools.tmf.core.trace.TmfContext#clone() | |
89 | */ | |
90 | @Override | |
91 | public CtfIterator clone() { | |
92 | CtfIterator clone = null; | |
93 | clone = new CtfIterator(ctfTmfTrace, | |
94 | this.getCurrentEvent().getTimestampValue(), curRank); | |
95 | return clone; | |
96 | } | |
97 | ||
98 | @Override | |
99 | public void dispose() { | |
100 | // FIXME add dispose() stuff to CTFTrace and call it here... | |
101 | ||
102 | } | |
103 | ||
104 | @Override | |
105 | public void setLocation(ITmfLocation<?> location) { | |
106 | // FIXME alex: isn't there a cleaner way than a cast here? | |
107 | this.curLocation = (CtfLocation) location; | |
6a98424f | 108 | seek(((CtfLocation)location).getLocation()); |
a3fc8213 AM |
109 | } |
110 | ||
111 | @Override | |
112 | public CtfLocation getLocation() { | |
113 | return curLocation; | |
114 | } | |
115 | ||
116 | @Override | |
117 | public void updateRank(int rank) { | |
118 | curRank = rank; | |
119 | } | |
120 | ||
121 | @Override | |
122 | public boolean isValidRank() { | |
123 | return true; | |
124 | } | |
125 | ||
126 | @Override | |
127 | public boolean advance() { | |
128 | return super.advance(); | |
129 | } | |
130 | ||
131 | @Override | |
132 | public int compareTo(CtfIterator o) { | |
133 | if (this.getRank() < o.getRank()) { | |
134 | return -1; | |
135 | } else if (this.getRank() > o.getRank()) { | |
136 | return 1; | |
137 | } | |
138 | return 0; | |
139 | } | |
140 | ||
141 | } |