/* Copyright (c) 2008 Google Inc.
*
* 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 sample.oauth;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
/**
* Helper class for loading data related to making an OAuth request. It isn't
* necessary to understand the details of this class in order to understand the
* OAuth examples.
*
*
*/
public abstract class UserInputHelper {
/** Helper method to read input from the command line. */
protected static String readCommandLineInput() {
System.out.print("> ");
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
String userInput = null;
try {
userInput = br.readLine();
} catch (IOException ioe) {
System.out.println("IO error trying to read input!");
System.exit(1);
}
System.out.println();
return userInput;
}
/** Loads the variables from the user for a specific OAuth request. */
public abstract UserInputVariables getVariables();
/** Loads the services that a supported by this specific example. */
protected abstract ArrayList<UserInputVariables.GoogleServiceType>
getSupportedServices();
/** Print out the header that begins each OAuth example. */
protected void printHeader() {
System.out.println();
System.out.println("=============");
System.out.println("Testing OAuth");
System.out.println("=============");
System.out.println();
System.out.println("This sample will show you how to use OAuth to retrieve "
+ "information from a Google Data service. Follow the instructions "
+ "below to continue");
System.out.println();
}
/** Get the Google service type from the user. */
protected UserInputVariables.GoogleServiceType getGoogleServiceType() {
System.out.println("Please select a Google service to query:");
ArrayList<UserInputVariables.GoogleServiceType> services =
getSupportedServices();
for (int i = 0; i < services.size(); i++) {
System.out.println("\t" + (i + 1) + ") " + services.get(i).toString());
}
return services.get(Integer.parseInt(readCommandLineInput()) - 1);
}
/** Get the signature method from the user. */
protected UserInputVariables.SignatureMethod getSignatureMethod() {
System.out.println("Please select a signature method:");
for (UserInputVariables.SignatureMethod m :
UserInputVariables.SignatureMethod.values()) {
System.out.println("\t" + (m.ordinal() + 1) + ") " + m.toString());
}
return UserInputVariables.SignatureMethod.values()[
Integer.parseInt(readCommandLineInput()) - 1];
}
/** Get the consumer key from the user. */
protected String getOAuthConsumerKey() {
System.out.println("Please enter your OAuth consumer key (usually your "
+ "domain, visit https://www.google.com/accounts/ManageDomains to "
+ "manage your OAuth parameters)");
return readCommandLineInput();
}
/** Get the RSA private key from the user. */
protected String getRsaPrivateKey() {
System.out.println("Please enter your RSA private key (the key should "
+ "be a Base-64 encoded string conforming to the PKCS #8 standard");
return readCommandLineInput();
}
/** Get the consumer secret from the user. */
protected String getConsumerSecret() {
System.out.println("Please enter your OAuth consumer secret (visit "
+ "https://www.google.com/accounts/ManageDomains to view your "
+ "consumer secret)");
return readCommandLineInput();
}
}