TraceCommonService.java 文件源码

private static void writeEntries(JsonGenerator jg, List<Trace.Entry> entries)
        throws IOException {
    jg.writeStartArray();
    PeekingIterator<Trace.Entry> i = Iterators.peekingIterator(entries.iterator());
    while (i.hasNext()) {
        Trace.Entry entry = i.next();
        int depth = entry.getDepth();
        jg.writeStartObject();
        writeJson(entry, jg);
        int nextDepth = i.hasNext() ? i.peek().getDepth() : 0;
        if (nextDepth > depth) {
            jg.writeArrayFieldStart("childEntries");
        } else if (nextDepth < depth) {
            jg.writeEndObject();
            for (int j = depth; j > nextDepth; j--) {
                jg.writeEndArray();
                jg.writeEndObject();
            }
        } else {
            jg.writeEndObject();
        }
    }
    jg.writeEndArray();
}