com.devcycle.sdk.server.openfeature.DevCycleProvider Maven / Gradle / Ivy

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Server side SDK to interact with DevCycle.

There is a newer version: 2.3.0

package com.devcycle.sdk.server.openfeature;

import com.devcycle.sdk.server.common.api.IDevCycleClient;
import com.devcycle.sdk.server.common.model.DevCycleUser;
import com.devcycle.sdk.server.common.model.Variable;
import dev.openfeature.sdk.*;
import dev.openfeature.sdk.exceptions.ProviderNotReadyError;
import dev.openfeature.sdk.exceptions.TypeMismatchError;

import java.util.Map;

public class DevCycleProvider implements FeatureProvider {
    private static final String PROVIDER_NAME = "DevCycle";

    private final IDevCycleClient devcycleClient;

    public DevCycleProvider(IDevCycleClient devcycleClient) {
        this.devcycleClient = devcycleClient;
    }

    @Override
    public Metadata getMetadata() {
        return () -> PROVIDER_NAME + " " + devcycleClient.getSDKPlatform();
    }

    @Override
    public ProviderEvaluation getBooleanEvaluation(String key, Boolean defaultValue, EvaluationContext ctx) {
        return resolvePrimitiveVariable(key, defaultValue, ctx);
    }

    @Override
    public ProviderEvaluation getStringEvaluation(String key, String defaultValue, EvaluationContext ctx) {
        return resolvePrimitiveVariable(key, defaultValue, ctx);
    }

    @Override
    public ProviderEvaluation getIntegerEvaluation(String key, Integer defaultValue, EvaluationContext ctx) {
        ProviderEvaluation eval = resolvePrimitiveVariable(key, defaultValue, ctx);
        return eval;
    }

    @Override
    public ProviderEvaluation getDoubleEvaluation(String key, Double defaultValue, EvaluationContext ctx) {
        return resolvePrimitiveVariable(key, defaultValue, ctx);
    }

    @Override
    public ProviderEvaluation getObjectEvaluation(String key, Value defaultValue, EvaluationContext ctx) {
        /*
         * JSON objects have special rules in the DevCycle SDK and must be handled differently
         * - must always be an object, no lists or literal values
         * - must only contain strings, numbers, and booleans
         */
        if (!defaultValue.isStructure()) {
            throw new TypeMismatchError("Default value must be a OpenFeature structure");
        }

        for (String k : defaultValue.asStructure().keySet()) {
            Value v = defaultValue.asStructure().getValue(k);
            if (!(v.isString() || v.isNumber() || v.isBoolean() || v.isNull())) {
                throw new TypeMismatchError("DevCycle JSON objects may only contain strings, numbers, booleans and nulls");
            }
        }

        if (devcycleClient.isInitialized()) {
            try {
                DevCycleUser user = DevCycleUser.fromEvaluationContext(ctx);

                Variable