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/* Copyright (c) 2008 Google Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package sample.health;
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import com.google.gdata.client.health.HealthService;
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import sample.util.SimpleCommandLineParser;
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import com.google.gdata.data.health.ProfileFeed;
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import com.google.gdata.data.health.ProfileEntry;
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import com.google.gdata.data.health.RegisterFeed;
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import com.google.gdata.data.health.RegisterEntry;
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import com.google.gdata.data.Feed;
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import com.google.gdata.data.Entry;
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import com.google.gdata.data.TextContent;
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import com.google.gdata.util.ServiceException;
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import com.google.gdata.util.AuthenticationException;
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import java.io.PrintStream;
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import java.io.IOException;
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import java.io.BufferedReader;
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import java.io.InputStreamReader;
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import java.net.MalformedURLException;
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import java.net.URL;
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import java.util.logging.Logger;
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import java.util.logging.Level;
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import java.util.logging.ConsoleHandler;
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import java.util.List;
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import java.util.ArrayList;
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/**
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* A demo for GData Health API.
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*
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*
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*/
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public class HealthDemo {
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/** The message for displaying the usage parameters. */
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private static final String[] USAGE_MESSAGE = {
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"Usage: java HealthDemo.jar --username <user> --password <pass>",
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" [--log] Enable logging of requests"
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};
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/** Help on all available commands. */
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private static final String[] COMMAND_HELP_MESSAGE = {
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"Commands:",
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" profile [[Prints all of user's medical profiles]]",
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" register [[Prints all of user's external notices]]",
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" exit [[quit sample]]"};
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/** Welcome message, introducing the program. */
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private static final String[] WELCOME_MESSAGE = {
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"This is a demo of the Google health Profile Feed!", "",
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"Using this interface, you can view list of Profile entries.",
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""};
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private static final String FEED_BASE_PATH =
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"https://www.google.com/health/feeds/";
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private static final String PROFILE_FEED_PATH = FEED_BASE_PATH + "profile/";
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private static final String REGISTER_FEED_PATH = FEED_BASE_PATH + "register/";
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private static final String PROFILE_LIST_URL_PATH = PROFILE_FEED_PATH + "list";
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private HealthService service;
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private List<String> profileIds = null;
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private PrintStream out;
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public HealthDemo() {
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}
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public HealthDemo(HealthService service, PrintStream outputStream)
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throws MalformedURLException {
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this.service = service;
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this.out = outputStream;
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}
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private List<String> getAllProfileIds() throws IOException, ServiceException {
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if (profileIds != null) {
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return profileIds;
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}
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profileIds = new ArrayList<String>();
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Feed profileListFeed = service.getFeed(
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new URL(PROFILE_LIST_URL_PATH), Feed.class);
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for (Entry profileListEntry : profileListFeed.getEntries()) {
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profileIds.add(
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((TextContent) profileListEntry.getContent()).
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getContent().getPlainText());
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}
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return profileIds;
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}
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/**
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* Prints the CCR record for specified profile id.
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*
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* @param profileId for which ccr record is requested
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* @throws IOException
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* @throws ServiceException
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*/
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public void showProfileForId(String profileId)
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throws IOException, ServiceException {
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out.println("CCR records for profile id: " + profileId);
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ProfileFeed feed = service.getFeed(
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new URL(PROFILE_FEED_PATH + "ui/" + profileId), ProfileFeed.class);
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for (ProfileEntry entry : feed.getEntries()) {
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out.println(entry.getContinuityOfCareRecord().getXmlBlob().getBlob());
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}
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}
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/**
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* Prints notices corresponding to specified profile.
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*
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* @param profileId whose notices need to be printed.
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* @throws IOException
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* @throws ServiceException
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*/
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public void showNoticesForId(String profileId)
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throws IOException, ServiceException {
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out.println("Notices for profile id: " + profileId);
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RegisterFeed feed = service.getFeed(
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new URL(REGISTER_FEED_PATH + "ui/" + profileId), RegisterFeed.class);
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if (feed.getEntries().size() == 0) {
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out.println("There are no notices for this profile");
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}
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int noticeIndex = 1;
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for (RegisterEntry entry : feed.getEntries()) {
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out.println(noticeIndex + ")" + entry.getTitle().getPlainText());
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noticeIndex++;
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}
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}
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private String selectProfile(BufferedReader reader)
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throws IOException, ServiceException {
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int profileIndex = 1;
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out.println("Please select a profile from the following list: ");
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for (String e : getAllProfileIds()) {
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out.println(profileIndex++ + ") " + e);
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}
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int choice = -1;
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while (choice < 1 || choice > profileIds.size()) {
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out.println("Select a profile: ");
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choice = Integer.parseInt(reader.readLine());
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}
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return getAllProfileIds().get(choice - 1);
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}
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/**
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* Reads and executes one command.
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*
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* @param reader to read input from the keyboard
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* @return false if the user quits, true on exception
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*/
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private boolean executeCommand(BufferedReader reader) {
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for (String s : COMMAND_HELP_MESSAGE) {
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out.println(s);
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}
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System.err.print("Command: ");
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try {
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String name = reader.readLine();
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if (name.equals("profile")) {
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showProfileForId(selectProfile(reader));
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} else if (name.equals("register")) {
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showNoticesForId(selectProfile(reader));
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} else if (name.startsWith("q") || name.startsWith("exit")) {
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return false;
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} else {
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out.println("Unknown command.");
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}
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} catch (Exception e) {
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// Show *exactly* what went wrong.
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e.printStackTrace();
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}
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return true;
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}
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/**
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* Starts up the demo and prompts for commands.
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*
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* @param username name of user to authenticate (e.g. yourname@gmail.com)
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* @param password password to use for authentication
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* @throws com.google.gdata.util.AuthenticationException
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* if the service is unable to validate the username and password.
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*/
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private void run(String username, String password)
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throws AuthenticationException {
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for (String s : WELCOME_MESSAGE) {
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out.println(s);
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}
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BufferedReader reader =
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new BufferedReader(new InputStreamReader(System.in));
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service.setUserCredentials(username, password);
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while (executeCommand(reader)) {
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}
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}
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public static void main(String[] args)
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throws IOException, ServiceException {
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SimpleCommandLineParser parser = new SimpleCommandLineParser(args);
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String username = parser.getValue("username", "user", "u");
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String password = parser.getValue("password", "pass", "p");
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boolean help = parser.containsKey("help", "h");
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if (help || username == null || password == null) {
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usage();
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System.exit(1);
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}
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if (parser.containsKey("log", "l")) {
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turnOnLogging();
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}
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HealthDemo demo = new HealthDemo(
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new HealthService("Sample Health Client"), System.out);
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demo.run(username, password);
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}
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private static void turnOnLogging() {
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// Configure the logging mechanisms
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Logger httpLogger =
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Logger.getLogger("com.google.gdata.client.http.HttpGDataRequest");
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httpLogger.setLevel(Level.ALL);
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Logger xmlLogger = Logger.getLogger("com.google.gdata.util.XmlParser");
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xmlLogger.setLevel(Level.ALL);
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// Create a log handler which prints all log events to the console
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ConsoleHandler logHandler = new ConsoleHandler();
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logHandler.setLevel(Level.ALL);
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httpLogger.addHandler(logHandler);
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xmlLogger.addHandler(logHandler);
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}
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/**
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* Prints out the usage.
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*/
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private static void usage() {
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for (String s : USAGE_MESSAGE) {
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System.out.println(s);
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}
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for (String s : WELCOME_MESSAGE) {
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System.out.println(s);
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}
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}
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}
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