twitter4jads.conf.ConfigurationBuilder Maven / Gradle / Ivy

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TwitterAds sdk

There is a newer version: 1.4.0

package twitter4jads.conf;

/**
 * A builder that can be used to construct a twitter4jads configuration with desired settings.  This
 * builder has sensible defaults such that {@code new ConfigurationBuilder().build()} would create a
 * usable configuration.  This configuration builder is useful for clients that wish to configure
 * twitter4jads in unit tests or from command line flags for example.
 *
 *
 */
public final class ConfigurationBuilder {

    private ConfigurationBase configurationBean = new PropertyConfiguration();

    public ConfigurationBuilder setOAuthConsumerKey(String oAuthConsumerKey) {
        checkNotBuilt();
        configurationBean.setOAuthConsumerKey(oAuthConsumerKey);
        return this;
    }

    public ConfigurationBuilder setOAuthConsumerSecret(String oAuthConsumerSecret) {
        checkNotBuilt();
        configurationBean.setOAuthConsumerSecret(oAuthConsumerSecret);
        return this;
    }

    public ConfigurationBuilder setOAuthAccessToken(String oAuthAccessToken) {
        checkNotBuilt();
        configurationBean.setOAuthAccessToken(oAuthAccessToken);
        return this;
    }

    public ConfigurationBuilder setOAuthAccessTokenSecret(String oAuthAccessTokenSecret) {
        checkNotBuilt();
        configurationBean.setOAuthAccessTokenSecret(oAuthAccessTokenSecret);
        return this;
    }

    public Configuration build() {
        checkNotBuilt();
        configurationBean.cacheInstance();
        try {
            return configurationBean;
        } finally {
            configurationBean = null;
        }
    }

    private void checkNotBuilt() {
        if (configurationBean == null) {
            throw new IllegalStateException("Cannot use this builder any longer, build() has already been called");
        }
    }
}