/*
* Copyright 2016 Red Hat, Inc. and/or its affiliates
* and other contributors as indicated by the @author tags.
*
* 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 org.keycloak.example;
import org.keycloak.common.util.StreamUtil;
import java.io.BufferedWriter;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
/**
* Very simple DAO, which stores/loads just one token per whole application into file in tmp directory. Useful just for example purposes.
* In real environment, token should be stored in database.
*
* @author <a href="mailto:mposolda@redhat.com">Marek Posolda</a>
*/
public class RefreshTokenDAO {
public static final String FILE = System.getProperty("java.io.tmpdir") + "/offline-access-portal";
public static void saveToken(final String token) throws IOException {
PrintWriter writer = null;
try {
writer = new PrintWriter(new BufferedWriter(new FileWriter(FILE)));
writer.print(token);
} finally {
if (writer != null) {
writer.close();
}
}
}
public static String loadToken() throws IOException {
FileInputStream fis = null;
try {
fis = new FileInputStream(FILE);
return StreamUtil.readString(fis);
} catch (FileNotFoundException fnfe) {
return null;
} finally {
if (fis != null) {
fis.close();
}
}
}
}