Java tutorial
/* * Copyright 2010-2011 Nabeel Mukhtar * * Licensed 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. * */ package com.google.code.linkedinapi.client.examples; import java.text.MessageFormat; import java.util.concurrent.Future; import org.apache.commons.cli.BasicParser; import org.apache.commons.cli.CommandLine; import org.apache.commons.cli.HelpFormatter; import org.apache.commons.cli.Option; import org.apache.commons.cli.OptionBuilder; import org.apache.commons.cli.Options; import org.apache.commons.cli.ParseException; import com.google.code.linkedinapi.client.AsyncLinkedInApiClient; import com.google.code.linkedinapi.client.LinkedInApiClientFactory; import com.google.code.linkedinapi.client.enumeration.ProfileType; import com.google.code.linkedinapi.schema.Connections; import com.google.code.linkedinapi.schema.Person; /** * @author Nabeel Mukhtar * */ public class AsyncApiExample { /** * Consumer Key */ private static final String CONSUMER_KEY_OPTION = "consumerKey"; /** * Consumer Secret */ private static final String CONSUMER_SECRET_OPTION = "consumerSecret"; /** * Access Token */ private static final String ACCESS_TOKEN_OPTION = "token"; /** * Access Token Secret */ private static final String ACCESS_TOKEN_SECRET_OPTION = "tokenSecret"; /** * ID */ private static final String ID_OPTION = "id"; /** * Email */ private static final String EMAIL_OPTION = "email"; /** * URL */ private static final String URL_OPTION = "url"; /** * Name of the help command line option. */ private static final String HELP_OPTION = "help"; /** * @param args */ public static void main(String[] args) { Options options = buildOptions(); try { CommandLine line = new BasicParser().parse(options, args); processCommandLine(line, options); } catch (ParseException exp) { System.err.println(exp.getMessage()); printHelp(options); } } /** * Process command line options and call the service. */ private static void processCommandLine(CommandLine line, Options options) { if (line.hasOption(HELP_OPTION)) { printHelp(options); } else if (line.hasOption(CONSUMER_KEY_OPTION) && line.hasOption(CONSUMER_SECRET_OPTION) && line.hasOption(ACCESS_TOKEN_OPTION) && line.hasOption(ACCESS_TOKEN_SECRET_OPTION)) { final String consumerKeyValue = line.getOptionValue(CONSUMER_KEY_OPTION); final String consumerSecretValue = line.getOptionValue(CONSUMER_SECRET_OPTION); final String accessTokenValue = line.getOptionValue(ACCESS_TOKEN_OPTION); final String tokenSecretValue = line.getOptionValue(ACCESS_TOKEN_SECRET_OPTION); final LinkedInApiClientFactory factory = LinkedInApiClientFactory.newInstance(consumerKeyValue, consumerSecretValue); final AsyncLinkedInApiClient client = factory.createAsyncLinkedInApiClient(accessTokenValue, tokenSecretValue); try { if (line.hasOption(ID_OPTION)) { String idValue = line.getOptionValue(ID_OPTION); System.out.println("Fetching profile and connections for user with id:" + idValue); Future<Person> profile = client.getProfileById(idValue); Future<Connections> connections = client.getConnectionsById(idValue); System.out.println("Done calling asynchronously. Now waiting for the result."); printResult(profile.get()); printResult(connections.get()); } else if (line.hasOption(EMAIL_OPTION)) { String emailValue = line.getOptionValue(EMAIL_OPTION); System.out.println("Fetching connections for user with email:" + emailValue); // Future<Connections> connections = client.getConnectionsByEmail(emailValue); // printResult(connections.get()); } else if (line.hasOption(URL_OPTION)) { String urlValue = line.getOptionValue(URL_OPTION); System.out.println("Fetching profile and connections for user with url:" + urlValue); Future<Person> profile = client.getProfileByUrl(urlValue, ProfileType.STANDARD); Future<Connections> connections = client.getConnectionsByUrl(urlValue); System.out.println("Done calling asynchronously. Now waiting for the result."); printResult(profile.get()); printResult(connections.get()); } else { System.out.println("Fetching profile and connections for current user."); Future<Person> profile = client.getProfileForCurrentUser(); Future<Connections> connections = client.getConnectionsForCurrentUser(); System.out.println("Done calling asynchronously. Now waiting for the result."); printResult(profile.get()); printResult(connections.get()); } } catch (Exception e) { e.printStackTrace(); } } else { printHelp(options); } } /** * Build command line options object. */ private static Options buildOptions() { Options opts = new Options(); String helpMsg = "Print this message."; Option help = new Option(HELP_OPTION, helpMsg); opts.addOption(help); String consumerKeyMsg = "You API Consumer Key."; OptionBuilder.withArgName("consumerKey"); OptionBuilder.hasArg(); OptionBuilder.withDescription(consumerKeyMsg); Option consumerKey = OptionBuilder.create(CONSUMER_KEY_OPTION); opts.addOption(consumerKey); String consumerSecretMsg = "You API Consumer Secret."; OptionBuilder.withArgName("consumerSecret"); OptionBuilder.hasArg(); OptionBuilder.withDescription(consumerSecretMsg); Option consumerSecret = OptionBuilder.create(CONSUMER_SECRET_OPTION); opts.addOption(consumerSecret); String accessTokenMsg = "You OAuth Access Token."; OptionBuilder.withArgName("accessToken"); OptionBuilder.hasArg(); OptionBuilder.withDescription(accessTokenMsg); Option accessToken = OptionBuilder.create(ACCESS_TOKEN_OPTION); opts.addOption(accessToken); String tokenSecretMsg = "You OAuth Access Token Secret."; OptionBuilder.withArgName("accessTokenSecret"); OptionBuilder.hasArg(); OptionBuilder.withDescription(tokenSecretMsg); Option accessTokenSecret = OptionBuilder.create(ACCESS_TOKEN_SECRET_OPTION); opts.addOption(accessTokenSecret); String idMsg = "ID of the user whose connections are to be fetched."; OptionBuilder.withArgName("id"); OptionBuilder.hasArg(); OptionBuilder.withDescription(idMsg); Option id = OptionBuilder.create(ID_OPTION); opts.addOption(id); String emailMsg = "Email of the user whose connections are to be fetched."; OptionBuilder.withArgName("email"); OptionBuilder.hasArg(); OptionBuilder.withDescription(emailMsg); Option email = OptionBuilder.create(EMAIL_OPTION); opts.addOption(email); String urlMsg = "Profile URL of the user whose connections are to be fetched."; OptionBuilder.withArgName("url"); OptionBuilder.hasArg(); OptionBuilder.withDescription(urlMsg); Option url = OptionBuilder.create(URL_OPTION); opts.addOption(url); return opts; } /** * Print help and usage. */ private static void printHelp(Options options) { int width = 80; String syntax = AsyncApiExample.class.getName() + " <options>"; String header = MessageFormat.format( "\nThe -{0}, -{1}, -{2} and -{3} options are required. All others are optional.", CONSUMER_KEY_OPTION, CONSUMER_SECRET_OPTION, ACCESS_TOKEN_OPTION, ACCESS_TOKEN_SECRET_OPTION); String footer = MessageFormat.format( "\nIf you do not specify any of -{0}, -{1} or -{2} options, the connections of current user are returned. You can only specify one of these options.", ID_OPTION, EMAIL_OPTION, URL_OPTION); new HelpFormatter().printHelp(width, syntax, header, options, footer, false); } /** * Print the result of API call. */ private static void printResult(Connections connections) { System.out.println("================================"); System.out.println("Total connections fetched:" + connections.getTotal()); for (Person person : connections.getPersonList()) { System.out.println(person.getFirstName() + " " + person.getLastName() + ":" + person.getHeadline()); } } /** * Print the result of API call. */ private static void printResult(Person profile) { System.out.println("================================"); System.out.println("Name:" + profile.getFirstName() + " " + profile.getLastName()); System.out.println("Headline:" + profile.getHeadline()); System.out.println("Summary:" + profile.getSummary()); System.out.println("Industry:" + profile.getIndustry()); System.out.println("Picture:" + profile.getPictureUrl()); } }