private void decideGCsAfterOldGC()

in analysis/gc-log/src/main/java/org/eclipse/jifa/gclog/model/G1GCModel.java [166:214]
45 lines of code
17 McCabe index (conditional complexity)

    private void decideGCsAfterOldGC() {
        GCEvent lastGCInCycle = null;
        double lastRemarkEndTime = Double.MAX_VALUE;
        double lastConcCycleEndTime = Double.MAX_VALUE;
        for (GCEvent event : getGcEvents()) {
            GCEventType type = event.getEventType();
            if (type == G1_CONCURRENT_UNDO_CYCLE) {
                continue;
            }
            if (type == G1_CONCURRENT_CYCLE) {
                if (event.containPhase(G1_CONCURRENT_MARK_ABORT)) {
                    return;
                }
                lastConcCycleEndTime = event.getEndTime();
                GCEvent remark = event.getLastPhaseOfType(G1_REMARK);
                if (remark != null) {
                    lastRemarkEndTime = remark.getEndTime();
                }
            }
            if (type == FULL_GC || type == YOUNG_GC || type == G1_MIXED_GC) {
                if (event.getStartTime() > lastRemarkEndTime) {
                    event.setTrue(GCEventBooleanType.GC_AFTER_REMARK);
                    lastRemarkEndTime = Double.MAX_VALUE;
                }
                if (event.getStartTime() >= lastConcCycleEndTime) {
                    if (type == FULL_GC) {
                        // a full gc interrupts mixed gcs
                        event.setTrue(GC_AT_END_OF_OLD_CYCLE);
                        lastGCInCycle = null;
                        lastConcCycleEndTime = Double.MAX_VALUE;
                    } else if (lastGCInCycle == null) {
                        lastGCInCycle = event;
                        if (type == YOUNG_GC && getLogStyle() == GCLogStyle.PRE_UNIFIED) {
                            // jdk8 does not print Prepare Mixed, add this sign for easier
                            // future analysis
                            event.setTrue(GCEventBooleanType.PREPARE_MIXED);
                        }
                    } else if (type == YOUNG_GC) {
                        // we have found the end of mixed gcs
                        lastGCInCycle.setTrue(GC_AT_END_OF_OLD_CYCLE);
                        lastGCInCycle = null;
                        lastConcCycleEndTime = Double.MAX_VALUE;
                    } else if (type == G1_MIXED_GC) {
                        lastGCInCycle = event;
                    }
                }
            }
        }
    }