uk.org.openeyes.oink.it.ITSupport.java Source code

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Here is the source code for uk.org.openeyes.oink.it.ITSupport.java

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/*******************************************************************************
 * OINK - Copyright (c) 2014 OpenEyes Foundation
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *******************************************************************************/
package uk.org.openeyes.oink.it;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;

import org.apache.http.HttpException;
import org.apache.http.HttpRequest;
import org.apache.http.HttpRequestInterceptor;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.protocol.HttpContext;

import ca.uhn.fhir.context.FhirContext;
import ca.uhn.fhir.rest.client.HttpBasicAuthInterceptor;
import ca.uhn.fhir.rest.client.IGenericClient;
import ca.uhn.fhir.rest.client.IRestfulClientFactory;

public class ITSupport {

    public static File getPropertyFileBySystemProperty(String systemProperty) {
        String path = System.getProperty(systemProperty);
        File f = new File(path);
        return f;
    }

    public static Properties getPropertiesBySystemProperty(String systemProperty) throws IOException {
        File f = getPropertyFileBySystemProperty(systemProperty);
        if (!f.exists()) {
            throw new FileNotFoundException("No file found at " + f.getAbsolutePath() + " for system property "
                    + systemProperty + " is it set correctly?");
        }
        FileInputStream fis = new FileInputStream(f);
        Properties p = new Properties();
        p.load(fis);
        fis.close();
        return p;
    }

    public static IGenericClient buildHapiClientForProxy(Properties proxyProps) {
        // See if Patient exists
        String proxyUri = (String) proxyProps.get("proxy.uri");

        // Create a context and get the client factory so it can be configured
        FhirContext ctx = new FhirContext();
        IRestfulClientFactory clientFactory = ctx.getRestfulClientFactory();

        // Create an HTTP Client Builder
        HttpClientBuilder builder = HttpClientBuilder.create();

        // This interceptor adds HTTP username/password to every request
        String username = (String) proxyProps.get("proxy.username");
        String password = (String) proxyProps.get("proxy.password");
        builder.addInterceptorFirst(new HttpBasicAuthInterceptor(username, password));

        builder.addInterceptorFirst(new HttpRequestInterceptor() {

            @Override
            public void process(HttpRequest req, HttpContext context) throws HttpException, IOException {
                req.addHeader("Accept", "application/json+fhir; charset=UTF-8");
            }
        });

        // Use the new HTTP client builder
        clientFactory.setHttpClient(builder.build());

        IGenericClient client = clientFactory.newGenericClient("http://" + proxyUri);

        return client;
    }

    public static IGenericClient buildHapiClientForFacade(Properties proxyProps) {
        String proxyUri = (String) proxyProps.get("proxy.uri");

        // Create a context and get the client factory so it can be configured
        FhirContext ctx = new FhirContext();
        IRestfulClientFactory clientFactory = ctx.getRestfulClientFactory();

        // Create an HTTP Client Builder
        HttpClientBuilder builder = HttpClientBuilder.create();

        // This interceptor adds HTTP username/password to every request
        String username = (String) proxyProps.get("proxy.username");
        String password = (String) proxyProps.get("proxy.password");
        builder.addInterceptorFirst(new HttpBasicAuthInterceptor(username, password));

        builder.addInterceptorFirst(new HttpRequestInterceptor() {

            @Override
            public void process(HttpRequest req, HttpContext context) throws HttpException, IOException {
                req.addHeader("Accept", "application/json+fhir; charset=UTF-8");
            }
        });

        // Use the new HTTP client builder
        clientFactory.setHttpClient(builder.build());

        IGenericClient client = clientFactory.newGenericClient("http://" + proxyUri);

        return client;
    }

}