public static Trace deserialize(final JsonNode rootNode) throws IOException {
final TraceRelationshipBuilder<Integer> traceBuilder = new TraceRelationshipBuilder<Integer>();
try {
parseTraces(rootNode, traceBuilder);
parseRelationships(rootNode, traceBuilder);
return traceBuilder.buildRoot();
} catch (RuntimeException e) {
throw new IOException(e);
}
}
private static void parseRelationships(
final JsonNode rootNode, final TraceRelationshipBuilder<Integer> builder) throws IOException {
if (builder.isEmpty()) {
throw new IOException("No traces in the document");
}
for (JsonNode node : getField(rootNode, JsonTraceCodec.RELATIONSHIPS)) {
final String relationship = getTextField(node, JsonTraceCodec.RELATIONSHIP_RELATIONSHIP);
final int from = getIntField(node, JsonTraceCodec.RELATIONSHIP_FROM);
final int to = getIntField(node, JsonTraceCodec.RELATIONSHIP_TO);
builder.addRelationship(relationship, from, to);
}
}
private static void parseTraces(
final JsonNode rootNode, final TraceRelationshipBuilder<Integer> builder) throws IOException {
for (JsonNode traceNode : getField(rootNode, JsonTraceCodec.TRACES)) {
final int traceId = getIntField(traceNode, JsonTraceCodec.TRACE_ID);
final String name = getTextField(traceNode, JsonTraceCodec.TRACE_NAME);
final ResultType resultType =
ResultType.valueOf(getTextField(traceNode, JsonTraceCodec.TRACE_RESULT_TYPE));
final ShallowTraceBuilder shallowBuilder = new ShallowTraceBuilder(name, resultType);
if (traceNode.get(JsonTraceCodec.TRACE_HIDDEN) != null)
shallowBuilder.setHidden(getBooleanField(traceNode, JsonTraceCodec.TRACE_HIDDEN));
if (traceNode.get(JsonTraceCodec.TRACE_SYSTEM_HIDDEN) != null)
shallowBuilder.setSystemHidden(
getBooleanField(traceNode, JsonTraceCodec.TRACE_SYSTEM_HIDDEN));
if (traceNode.get(JsonTraceCodec.TRACE_VALUE) != null)
shallowBuilder.setValue(getTextField(traceNode, JsonTraceCodec.TRACE_VALUE));
if (traceNode.get(JsonTraceCodec.TRACE_START_NANOS) != null)
shallowBuilder.setStartNanos(getLongField(traceNode, JsonTraceCodec.TRACE_START_NANOS));
if (traceNode.get(JsonTraceCodec.TRACE_END_NANOS) != null)
shallowBuilder.setEndNanos(getLongField(traceNode, JsonTraceCodec.TRACE_END_NANOS));
if (traceNode.get(JsonTraceCodec.TRACE_ATTRIBUTES) != null) {
for (JsonNode node : getField(traceNode, JsonTraceCodec.TRACE_ATTRIBUTES)) {
String key = getTextField(node, JsonTraceCodec.TRACE_ATTRIBUTE_KEY);
String value = getTextField(node, JsonTraceCodec.TRACE_ATTRIBUTE_VALUE);
shallowBuilder.addAttribute(key, value);
}
}
builder.addTrace(traceId, shallowBuilder.build());
}
}