es.tsb.ltba.nomhad.example.ClientWithResponseHandler.java Source code

Introduction

Here is the source code for es.tsb.ltba.nomhad.example.ClientWithResponseHandler.java

Source

package es.tsb.ltba.nomhad.example;

/*
 * ====================================================================
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 *
 */

import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;

import javax.net.ssl.SSLContext;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;

import org.apache.http.auth.AuthScope;
import org.apache.http.auth.UsernamePasswordCredentials;
import org.apache.http.client.HttpClient;
import org.apache.http.client.ResponseHandler;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.conn.ClientConnectionManager;
import org.apache.http.conn.scheme.Scheme;
import org.apache.http.conn.scheme.SchemeRegistry;
import org.apache.http.conn.ssl.SSLSocketFactory;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.BasicResponseHandler;
import org.apache.http.impl.client.DefaultHttpClient;

/**
 * This example demonstrates the use of the {@link ResponseHandler} to simplify
 * the process of processing the HTTP response and releasing associated
 * resources.
 */
public class ClientWithResponseHandler {

    private static final String NOMHAD_URL_HEADER = "https://192.168.238.40:8443/nomhad/rest/2/cmr/patient/";
    private static final String OBSERVATIONS_REQUEST = "/observations";
    private static final String BODY_TEST = "{" +

            "\"mon1\": {" + "\"indicatorsGroup\": \"HEALTH_INDICATORS_GROUP_WEEK\","
            + "  \"startDate\": \"20130127T121523+0100\"," + "\"devices\": [" + "{"
            + "           \"id\": \"35-209900-176148-1\"," + "           \"specs\": ["
            + " \"MDC_DEV_SPEC_PROFILE_HYDRA\"" + "           ]," + "           \"observations\": ["
            + "               {" + "                   \"type\": \"NO\","
            + "                   \"indicator\": \"AAL_HEALTH_INDEX_WEEK\"," + "\"value\": 3.9" + "}" + "]" + "}"
            + "]" + "}" + "}            ";

    public final static void main(String[] args) throws Exception {

        DefaultHttpClient httpclient = new DefaultHttpClient();
        httpclient = wrapClient(httpclient);
        httpclient.getCredentialsProvider().setCredentials(new AuthScope(AuthScope.ANY_HOST, AuthScope.ANY_PORT),
                new UsernamePasswordCredentials("A100", "123456"));

        try {
            HttpGet httpget = new HttpGet(NOMHAD_URL_HEADER + "A100" + OBSERVATIONS_REQUEST);

            HttpPost httppost = new HttpPost(NOMHAD_URL_HEADER + "A100" + OBSERVATIONS_REQUEST);
            httppost.setEntity(new StringEntity(BODY_TEST));
            System.out.println("executing request " + httpget.getURI());

            // Create a response handler
            ResponseHandler<String> responseHandler = new BasicResponseHandler();
            String responseBody = httpclient.execute(httppost, responseHandler);
            System.out.println("----------------------------------------");
            System.out.println(responseBody);
            System.out.println("----------------------------------------");

        } finally {
            // When HttpClient instance is no longer needed,
            // shut down the connection manager to ensure
            // immediate deallocation of all system resources
            httpclient.getConnectionManager().shutdown();
        }
    }

    private static DefaultHttpClient wrapClient(HttpClient base) {
        try {
            SSLContext ctx = SSLContext.getInstance("TLS");
            X509TrustManager tm = new X509TrustManager() {

                public void checkClientTrusted(X509Certificate[] xcs, String string) throws CertificateException {
                }

                public void checkServerTrusted(X509Certificate[] xcs, String string) throws CertificateException {
                }

                public X509Certificate[] getAcceptedIssuers() {
                    return null;
                }
            };
            ctx.init(null, new TrustManager[] { tm }, null);
            SSLSocketFactory ssf = new SSLSocketFactory(ctx, SSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER);
            ClientConnectionManager ccm = base.getConnectionManager();
            SchemeRegistry sr = ccm.getSchemeRegistry();
            sr.register(new Scheme("https", 443, ssf));
            return new DefaultHttpClient(ccm, base.getParams());
        } catch (Exception ex) {
            ex.printStackTrace();
            return null;
        }
    }

}