Examples with SpanImpl org.apache.ignite.internal.processors.tracing.SpanImpl used on opensource projects

Example 1 with SpanImpl

use of org.apache.ignite.internal.processors.tracing.SpanImpl in project ignite by apache.

the class GridTracingManager method generateSpan.

/**
 * Generates child span if it's possible due to parent/child included scopes, otherwise returns patent span as is.
 * @param parentSpan Parent span.
 * @param spanTypeToCreate Span type to create.
 * @param lb Label.
 */
@SuppressWarnings("unchecked")
@NotNull
private Span generateSpan(@Nullable Span parentSpan, @NotNull SpanType spanTypeToCreate, @Nullable String lb) {
    if (parentSpan instanceof DeferredSpan)
        return create(spanTypeToCreate, ((DeferredSpan) parentSpan).serializedSpan());
    if (parentSpan == NoopSpan.INSTANCE || parentSpan == null) {
        if (spanTypeToCreate.rootSpan()) {
            // Get tracing configuration.
            TracingConfigurationParameters tracingConfigurationParameters = tracingConfiguration.get(new TracingConfigurationCoordinates.Builder(spanTypeToCreate.scope()).withLabel(lb).build());
            return shouldSample(tracingConfigurationParameters.samplingRate()) ? new SpanImpl(getSpi().create(spanTypeToCreate.spanName(), (SpiSpecificSpan) null), spanTypeToCreate, tracingConfigurationParameters.includedScopes()) : NoopSpan.INSTANCE;
        } else
            return NoopSpan.INSTANCE;
    } else {
        // If there's is parent span and parent span supports given scope then...
        if (parentSpan.isChainable(spanTypeToCreate.scope())) {
            // create new span as child span for parent span, using parents span included scopes.
            Set<Scope> mergedIncludedScopes = new HashSet<>(parentSpan.includedScopes());
            mergedIncludedScopes.add(parentSpan.type().scope());
            mergedIncludedScopes.remove(spanTypeToCreate.scope());
            return new SpanImpl(getSpi().create(spanTypeToCreate.spanName(), ((SpanImpl) parentSpan).spiSpecificSpan()), spanTypeToCreate, mergedIncludedScopes);
        } else {
            // do nothing;
            return NoopSpan.INSTANCE;
        }
    }
}

Example 2 with SpanImpl

use of org.apache.ignite.internal.processors.tracing.SpanImpl in project ignite by apache.

the class GridTracingManager method create.

/**
 * {@inheritDoc}
 */
@Override
public Span create(@NotNull SpanType spanType, @Nullable byte[] serializedParentSpan) {
    // Optimization for noop spi.
    if (noop)
        return NoopSpan.INSTANCE;
    // Optimization for zero sampling rate == 0.
    if ((serializedParentSpan.length == 0 || serializedParentSpan == null) && tracingConfiguration.get(new TracingConfigurationCoordinates.Builder(spanType.scope()).build()).samplingRate() == SAMPLING_RATE_NEVER)
        return NoopSpan.INSTANCE;
    // 1 byte: special flags;
    // 1 bytes: spi type;
    // 2 bytes: major protocol version;
    // 2 bytes: minor protocol version;
    // 4 bytes: spi specific serialized span length;
    // n bytes: spi specific serialized span body;
    // 4 bytes: span type
    // 4 bytes included scopes size;
    // 2 * included scopes size: included scopes items one by one;
    Span span;
    try {
        if (serializedParentSpan == null || serializedParentSpan.length == 0)
            return create(spanType, NoopSpan.INSTANCE);
        // propagate serializedSpan as DeferredSpan.
        if (serializedParentSpan[SPI_TYPE_OFF] != getSpi().type())
            return new DeferredSpan(serializedParentSpan);
        // propagate serializedSpan as DeferredSpan.
        if (serializedParentSpan[MAJOR_PROTOCOL_VERSION_OFF] != MAJOR_PROTOCOL_VERSION)
            return new DeferredSpan(serializedParentSpan);
        // Deserialize and check minor protocol version.
        // within the scope of the same major protocol version, protocol should be backwards compatible
        byte minProtoVer = serializedParentSpan[MINOR_PROTOCOL_VERSION_OFF];
        // Deserialize spi specific span size.
        int spiSpecificSpanSize = bytesToInt(Arrays.copyOfRange(serializedParentSpan, SPI_SPECIFIC_SERIALIZED_SPAN_BYTES_LENGTH_OFF, SPI_SPECIFIC_SERIALIZED_SPAN_BODY_OFF), 0);
        SpanType parentSpanType = null;
        Set<Scope> includedScopes = new HashSet<>();
        // Fall through.
        switch(minProtoVer) {
            case 0:
                {
                    // Deserialize parent span type.
                    parentSpanType = SpanType.fromIndex(bytesToInt(Arrays.copyOfRange(serializedParentSpan, SPI_SPECIFIC_SERIALIZED_SPAN_BODY_OFF + spiSpecificSpanSize, SPI_SPECIFIC_SERIALIZED_SPAN_BODY_OFF + PARENT_SPAN_TYPE_BYTES_LENGTH + spiSpecificSpanSize), 0));
                    // Deserialize included scopes size.
                    int includedScopesSize = bytesToInt(Arrays.copyOfRange(serializedParentSpan, SPI_SPECIFIC_SERIALIZED_SPAN_BODY_OFF + PARENT_SPAN_TYPE_BYTES_LENGTH + spiSpecificSpanSize, SPI_SPECIFIC_SERIALIZED_SPAN_BODY_OFF + PARENT_SPAN_TYPE_BYTES_LENGTH + INCLUDED_SCOPES_SIZE_BYTE_LENGTH + spiSpecificSpanSize), 0);
                    // Deserialize included scopes one by one.
                    for (int i = 0; i < includedScopesSize; i++) {
                        includedScopes.add(Scope.fromIndex(bytesToShort(Arrays.copyOfRange(serializedParentSpan, SPI_SPECIFIC_SERIALIZED_SPAN_BODY_OFF + PARENT_SPAN_TYPE_BYTES_LENGTH + INCLUDED_SCOPES_SIZE_BYTE_LENGTH + spiSpecificSpanSize + i * SCOPE_INDEX_BYTE_LENGTH, SPI_SPECIFIC_SERIALIZED_SPAN_BODY_OFF + PARENT_SPAN_TYPE_BYTES_LENGTH + INCLUDED_SCOPES_SIZE_BYTE_LENGTH + SCOPE_INDEX_BYTE_LENGTH + spiSpecificSpanSize + i * SCOPE_INDEX_BYTE_LENGTH), 0)));
                    }
                }
        }
        assert parentSpanType != null;
        // If there's is parent span and parent span supports given scope then...
        if (parentSpanType.scope() == spanType.scope() || includedScopes.contains(spanType.scope())) {
            // create new span as child span for parent span, using parents span included scopes.
            Set<Scope> mergedIncludedScopes = new HashSet<>(includedScopes);
            mergedIncludedScopes.add(parentSpanType.scope());
            mergedIncludedScopes.remove(spanType.scope());
            span = new SpanImpl(getSpi().create(spanType.spanName(), Arrays.copyOfRange(serializedParentSpan, SPI_SPECIFIC_SERIALIZED_SPAN_BODY_OFF, SPI_SPECIFIC_SERIALIZED_SPAN_BODY_OFF + spiSpecificSpanSize)), spanType, mergedIncludedScopes);
        } else {
            // do nothing;
            return new DeferredSpan(serializedParentSpan);
        // "suppress" parent span for a while, create new span as separate one.
        // return spi.create(trace, null, includedScopes);
        }
    } catch (Exception e) {
        LT.warn(log, "Failed to create span from serialized value " + "[serializedValue=" + Arrays.toString(serializedParentSpan) + "]");
        span = NoopSpan.INSTANCE;
    }
    return enrichWithLocalNodeParameters(span);
}