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A Spring Cloud Stream Binder implementation using the Solace Java API (JCSMP)

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package com.solace.spring.cloud.stream.binder.meter;

import com.solacesystems.jcsmp.XMLMessage;
import io.micrometer.core.instrument.DistributionSummary;
import io.micrometer.core.instrument.MeterRegistry;
import io.micrometer.core.instrument.binder.BaseUnits;
import io.micrometer.core.instrument.binder.MeterBinder;
import org.jetbrains.annotations.NotNull;

public class SolaceMessageMeterBinder implements MeterBinder {
    MeterRegistry registry;

    public static final String METER_NAME_TOTAL_SIZE = "solace.message.size.total";
    public static final String METER_NAME_PAYLOAD_SIZE = "solace.message.size.payload";
    public static final String METER_DESCRIPTION_TOTAL_SIZE = "Total message size";
    public static final String METER_DESCRIPTION_PAYLOAD_SIZE = "Message payload size";
    public static final String TAG_NAME = "name";

    @Override
    public void bindTo(@NotNull MeterRegistry registry) {
        this.registry = registry;
    }

    public void recordMessage(@NotNull String bindingName, @NotNull XMLMessage message) {
        long payloadSize = message.getAttachmentContentLength() + message.getContentLength();
        registerSizeMeter(METER_NAME_TOTAL_SIZE, METER_DESCRIPTION_TOTAL_SIZE, bindingName)
                .record(payloadSize + message.getBinaryMetadataContentLength(0));
        registerSizeMeter(METER_NAME_PAYLOAD_SIZE, METER_DESCRIPTION_PAYLOAD_SIZE, bindingName)
                .record(payloadSize);
    }

    private DistributionSummary registerSizeMeter(@NotNull String meterName,
                                                  @NotNull String description,
                                                  @NotNull String bindingName) {
        return DistributionSummary.builder(meterName)
                .description(description)
                .tag(TAG_NAME, bindingName)
                .baseUnit(BaseUnits.BYTES)
                .register(registry);
    }
}