org.opennaas.extensions.ofertie.ncl.provisioner.components.UserManager.java Source code

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Here is the source code for org.opennaas.extensions.ofertie.ncl.provisioner.components.UserManager.java

Source

package org.opennaas.extensions.ofertie.ncl.provisioner.components;

/*
 * #%L
 * OpenNaaS :: Generic Network
 * %%
 * Copyright (C) 2007 - 2014 Fundaci Privada i2CAT, Internet i Innovaci a Catalunya
 * %%
 * 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.
 * #L%
 */

import java.io.BufferedReader;
import java.io.CharArrayWriter;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.Set;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.opennaas.core.resources.ObjectSerializer;
import org.opennaas.core.resources.SerializationException;
import org.opennaas.extensions.ofertie.ncl.provisioner.model.User;
import org.opennaas.extensions.ofertie.ncl.provisioner.model.UserSet;

/**
 * 
 * @author Adrin Rosell Rey (i2CAT)
 *
 */
public class UserManager {

    private final static String USER_REGISTRY_URL = "etc/org.opennaas.extensions.ofertie.ncl.users.xml";

    private static Log log = LogFactory.getLog(UserManager.class);

    public Set<User> getUsers() throws IOException, SerializationException {

        String usersString = readXMLFile(USER_REGISTRY_URL);
        UserSet userRegistry = (UserSet) ObjectSerializer.fromXml(usersString, UserSet.class);

        return userRegistry.getUsers();
    }

    public User getUser(String username) throws IOException, SerializationException {

        Set<User> users = getUsers();

        for (User user : users)
            if (user.getUsername().equals(username))
                return user;

        return null;

    }

    private static String readXMLFile(String filePath) throws IOException {

        log.debug("Reading content of file " + filePath);

        InputStreamReader reader = null;
        BufferedReader bufferReader = null;
        try {
            URL url = new URL(filePath);
            reader = new InputStreamReader(url.openStream());
            bufferReader = new BufferedReader(reader);
        } catch (MalformedURLException ignore) {
            // They try a file
            File file = new File(filePath);
            bufferReader = new BufferedReader(new FileReader(file));
        }
        CharArrayWriter w = new CharArrayWriter();
        int n;
        char[] buf = new char[8192];
        while ((n = bufferReader.read(buf)) > 0) {
            w.write(buf, 0, n);
        }
        bufferReader.close();
        String fileContent = w.toString();
        log.debug("Readed content of file " + filePath);

        return fileContent;
    }

}