com.nycjv321.http.builder.SimpleHttpClientBuilder Maven / Gradle / Ivy

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A simple wrapper of Apache's Http Client Library that tries to make interacting with HTTP Easy
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package com.nycjv321.http.builder;

import com.nycjv321.http.CredentialsProviderBuilder;
import com.nycjv321.http.Requests;
import com.nycjv321.http.client.Client;
import com.nycjv321.utilities.Builder;
import org.apache.http.client.CredentialsProvider;
import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
import org.apache.http.conn.ssl.SSLContextBuilder;
import org.apache.http.conn.ssl.TrustSelfSignedStrategy;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.impl.client.HttpClients;

import java.security.KeyManagementException;
import java.security.KeyStoreException;
import java.security.NoSuchAlgorithmException;
import java.util.Objects;
import java.util.function.Supplier;

/**
 * Created by fedora on 11/18/15.
 */
public abstract class SimpleHttpClientBuilder extends Builder {
    protected Supplier httpClientSupplier;
    protected Requests.Timeouts timeouts;
    private CredentialsProvider credentialsProvider;

    protected SimpleHttpClientBuilder() {
        httpClientSupplier = createHttpClient();
    }

    public SimpleHttpClientBuilder credentialProvider(CredentialsProvider credentialsProvider) {
        this.credentialsProvider = credentialsProvider;
        return getThis();
    }

    public SimpleHttpClientBuilder credentialProvider(CredentialsProviderBuilder credentialsProvider) {
        return credentialProvider(credentialsProvider.build());
    }

    public SimpleHttpClientBuilder timeouts(Requests.Timeouts timeouts) {
        this.timeouts = timeouts;
        return getThis();
    }

    private boolean hasCredentialsProvider() {
        return Objects.nonNull(credentialsProvider);
    }

    private Supplier createHttpClient() {
        return () -> {
            if (hasCredentialsProvider()) {
                return HttpClients.
                        custom().
                        setDefaultCredentialsProvider(credentialsProvider).
                        build();
            } else {
                SSLContextBuilder builder = new SSLContextBuilder();
                try {
                    builder.loadTrustMaterial(null, new TrustSelfSignedStrategy());
                } catch (NoSuchAlgorithmException | KeyStoreException e) {
                    throw new RuntimeException(e);
                }
                SSLConnectionSocketFactory sslsf;
                try {
                    sslsf = new SSLConnectionSocketFactory(
                            builder.build());
                } catch (NoSuchAlgorithmException | KeyManagementException e) {
                    throw new RuntimeException(e);
                }
                HttpClientBuilder client = HttpClients.custom().setSSLSocketFactory(
                        sslsf);
                client.setDefaultCredentialsProvider(credentialsProvider);
                return client.build();
            }
        };
    }

    @Override
    protected SimpleHttpClientBuilder getThis() {
        return this;
    }
}