com.icoderman.woocommerce.oauth.OAuthConfigBuilder Maven / Gradle / Ivy

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Java wrapper for WooCommerce REST API
There is a newer version: 1.4
package com.icoderman.woocommerce.oauth;

import com.icoderman.woocommerce.oauth.core.DefaultTimestampNonceFactory;
import com.icoderman.woocommerce.oauth.core.signature.HMACSha1SignatureMethod;

import java.util.Objects;
import java.util.Optional;

/**
 * OAuthConfig Builder class.
 * Helps creating an unmutable instance OAuthConfig.
 */
public class OAuthConfigBuilder {

    private static final String CALLBACK_OUT_OF_BAND = "oob";

    private SignatureMethod signatureMethod = new HMACSha1SignatureMethod();
    private TimestampNonceFactory timestampNonceFactory = new DefaultTimestampNonceFactory();

    private final String consumerKey;
    private final String consumerSecret;

    // nullable fields:
    private String tokenKey;
    private String tokenSecret;

    private String scope;
    private String callback;
    private String verifier;
    private String realm;

    public OAuthConfigBuilder(String consumerKey, String consumerSecret) {

        Objects.requireNonNull(consumerKey, "ConsumerKey cannot be null");
        Objects.requireNonNull(consumerSecret, "ConsumerSecret cannot be null");

        this.consumerKey = consumerKey;
        this.consumerSecret = consumerSecret;
    }

    public OAuthConfigBuilder withTimestampNonceFactory(TimestampNonceFactory timestampNonceFactory) {

        Objects.requireNonNull(timestampNonceFactory, "TimestampNonceFactory cannot be null");
        this.timestampNonceFactory = timestampNonceFactory;

        return this;
    }

    public OAuthConfigBuilder withSignatureMethod(SignatureMethod signatureMethod) {

        Objects.requireNonNull(signatureMethod, "SignatureMethod cannot be null");
        this.signatureMethod = signatureMethod;

        return this;
    }

    public OAuthConfigBuilder withDefaultCallback() {

        this.callback = CALLBACK_OUT_OF_BAND;

        return this;
    }

    public OAuthConfigBuilder setTokenKeys(String tokenKey, String tokenSecret) {

        if ((tokenKey != null && tokenSecret == null) || (tokenKey == null && tokenSecret != null)) {
            throw new IllegalArgumentException("Token keys must be both null or not null");
        }

        this.tokenKey = tokenKey;
        this.tokenSecret = tokenSecret;

        return this;
    }

    public OAuthConfigBuilder setScope(String scope) {

        this.scope = scope;

        return this;
    }

    public OAuthConfigBuilder setCallback(String callback) {

        this.callback = callback;

        return this;
    }

    public OAuthConfigBuilder setVerifier(String verifier) {

        this.verifier = verifier;

        return this;
    }

    public OAuthConfigBuilder setRealm(String realm) {

        this.realm = realm;

        return this;
    }

    public OAuthConfig build() {
        return new OAuthConfigDto(this);
    }

    private static class OAuthConfigDto implements OAuthConfig {

        private final String consumerKey;
        private final String consumerSecret;

        private final TimestampNonceFactory timestampNonceFactory;
        private final SignatureMethod signatureMethod;

        private final Optional tokenKey;
        private final Optional tokenSecret;

        private final Optional scope;
        private final Optional callback;
        private final Optional verifier;
        private final Optional realm;

        public OAuthConfigDto(OAuthConfigBuilder builder) {

            this.consumerKey = builder.consumerKey;
            this.consumerSecret = builder.consumerSecret;
            this.signatureMethod = builder.signatureMethod;
            this.timestampNonceFactory = builder.timestampNonceFactory;

            this.tokenKey = Optional.ofNullable(builder.tokenKey);
            this.tokenSecret = Optional.ofNullable(builder.tokenSecret);
            this.scope = Optional.ofNullable(builder.scope);
            this.callback = Optional.ofNullable(builder.callback);
            this.verifier = Optional.ofNullable(builder.verifier);
            this.realm = Optional.ofNullable(builder.realm);
        }

        @Override
        public String getConsumerKey() {
            return consumerKey;
        }

        @Override
        public TimestampNonceFactory getTimestampNonceFactory() {
            return timestampNonceFactory;
        }

        @Override
        public SignatureMethod getSignatureMethod() {
            return signatureMethod;
        }

        @Override
        public Optional getTokenKey() {
            return tokenKey;
        }

        @Override
        public Optional getScope() {
            return scope;
        }

        @Override
        public Optional getCallback() {
            return callback;
        }

        @Override
        public Optional getVerifier() {
            return verifier;
        }

        @Override
        public String getConsumerSecret() {
            return consumerSecret;
        }

        @Override
        public Optional getTokenSecret() {
            return tokenSecret;
        }

        @Override
        public Optional getRealm() {
            return realm;
        }
    }
}