org.openmrs.module.yank.api.impl.RestClient.java Source code

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Here is the source code for org.openmrs.module.yank.api.impl.RestClient.java

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/**
 * The contents of this file are subject to the OpenMRS Public License
 * Version 1.0 (the "License"); you may not use this file except in
 * compliance with the License. You may obtain a copy of the License at
 * http://license.openmrs.org
 *
 * Software distributed under the License is distributed on an "AS IS"
 * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
 * License for the specific language governing rights and limitations
 * under the License.
 *
 * Copyright (C) OpenMRS, LLC.  All Rights Reserved.
 */
package org.openmrs.module.yank.api.impl;

import java.net.Authenticator;
import java.util.Map;

import javax.ws.rs.core.MediaType;

import com.sun.jersey.api.client.Client;
import com.sun.jersey.api.client.WebResource;
import com.sun.jersey.api.client.filter.LoggingFilter;
import java.security.SecureRandom;
import java.security.cert.CertificateException;
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLContext;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

/**
 * Helper class for making REST calls
 */
public class RestClient {
    private static Log log = LogFactory.getLog(RestClient.class);

    static Client client = Client.create();

    static {
        // Create a trust manager that does not validate certificate chains
        TrustManager[] trustAllCerts = new TrustManager[] { new X509TrustManager() {
            @Override
            public void checkClientTrusted(java.security.cert.X509Certificate[] xcs, String string)
                    throws CertificateException {
                // PASS
            }

            @Override
            public void checkServerTrusted(java.security.cert.X509Certificate[] xcs, String string)
                    throws CertificateException {
                // PASS
            }

            @Override
            public java.security.cert.X509Certificate[] getAcceptedIssuers() {
                return null;
            }
        } };

        // Install the all-trusting trust manager
        try {
            SSLContext sc = SSLContext.getInstance("TLS");
            sc.init(null, trustAllCerts, new SecureRandom());
            HttpsURLConnection.setDefaultSSLSocketFactory(sc.getSocketFactory());
        } catch (Exception e) {
            ;
        }
    }

    static {
        if (log.isDebugEnabled())
            client.addFilter(new LoggingFilter(System.out));
    }

    private static WebResource getRootResource(String serverName) {
        return client.resource(serverName).path("ws").path("rest").path("v1");
    }

    public static String listQuery(String serverName, String username, String password, String resourceName,
            String queryParamName, String query) {
        Authenticator.setDefault(new BasicAuth(username, password));
        return getRootResource(serverName).path(resourceName).queryParam(queryParamName, query)
                .accept(MediaType.APPLICATION_JSON_TYPE).get(String.class);
    }

    public static String getResource(String serverName, String username, String password, String resourceName,
            String uuid) {
        Authenticator.setDefault(new BasicAuth(username, password));
        return getRootResource(serverName).path(resourceName).path(uuid).queryParam("v", "full")
                .accept(MediaType.APPLICATION_JSON_TYPE).get(String.class);
    }

    public static void post(String serverName, String resource, Map<String, String> properties) {
        getRootResource(serverName).path(resource).post(properties);
    }

}