Java tutorial
/*L * Copyright Ekagra Software Technologies Ltd. * Copyright SAIC, SAIC-Frederick * * Distributed under the OSI-approved BSD 3-Clause License. * See http://ncip.github.com/cacore-sdk/LICENSE.txt for details. */ package gov.nih.nci.system.web.client; import java.io.BufferedReader; import java.io.File; import java.io.FileWriter; import java.io.InputStream; import java.io.InputStreamReader; import javax.ws.rs.core.Response; import javax.ws.rs.core.Response.Status; import javax.ws.rs.core.Response.ResponseBuilder; import org.apache.cxf.jaxrs.client.WebClient; import org.apache.commons.codec.binary.Base64; public class RESTfulReadClient { public RESTfulReadClient() { } public Response read(String url) { try { if (url == null) { ResponseBuilder builder = Response.status(Status.BAD_REQUEST); builder.type("application/xml"); StringBuffer buffer = new StringBuffer(); buffer.append("<?xml version=\"1.0\" encoding=\"UTF-8\"?>"); buffer.append("<response>"); buffer.append("<type>ERROR</type>"); buffer.append("<code>INVALID_URL</code>"); buffer.append("<message>Invalid URL: " + url + "</message>"); buffer.append("</response>"); builder.entity(buffer.toString()); return builder.build(); } WebClient client = WebClient.create(url); client.type("application/xml").accept("application/xml"); return client.get(); } catch (Exception e) { e.printStackTrace(); } return null; } public Response read(String url, String userName, String password) { try { if (url == null) { ResponseBuilder builder = Response.status(Status.BAD_REQUEST); builder.type("application/xml"); StringBuffer buffer = new StringBuffer(); buffer.append("<?xml version=\"1.0\" encoding=\"UTF-8\"?>"); buffer.append("<response>"); buffer.append("<type>ERROR</type>"); buffer.append("<code>INVALID_URL</code>"); buffer.append("<message>Invalid URL: " + url + "</message>"); buffer.append("</response>"); builder.entity(buffer.toString()); return builder.build(); } WebClient client = WebClient.create(url); client.type("application/xml").accept("application/xml"); String base64encodedUsernameAndPassword = new String( Base64.encodeBase64((userName + ":" + password).getBytes())); client.header("Authorization", "Basic " + base64encodedUsernameAndPassword); return client.get(); } catch (Exception e) { e.printStackTrace(); } return null; } }