UserDataStore.java

package de.saxsys.projectiler;

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectInputStream;
import java.io.ObjectOutput;
import java.io.ObjectOutputStream;
import java.io.Serializable;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.Date;
import java.util.logging.Logger;

public class UserDataStore implements Serializable {

	private static final Logger LOGGER = Logger.getLogger(UserDataStore.class.getSimpleName());
	private static final long serialVersionUID = -8326125819925449250L;

	// TODO Wenn wir wissen wie wir ausliefern -> tauschen [AC]
	private static final String FILENAME = System.getProperty("userdata.file",
			System.getProperty("user.home") + "/.projectiler/data.projectiler");
	private static final Path FILEPATH = Paths.get(FILENAME);

	private Date startDate = null;
	private String userName = "";
	private String projectName = null;
	private transient String password;

	private static UserDataStore INSTANCE;

	public static UserDataStore getInstance() {
		if (null == INSTANCE) {
			INSTANCE = new UserDataStore();
			INSTANCE.load();
		}
		return INSTANCE;
	}

	private UserDataStore() {
	}

	public void save() {
		try {
			Files.createDirectories(FILEPATH.getParent());
			try (ObjectOutput output = new ObjectOutputStream(new BufferedOutputStream(
					Files.newOutputStream(FILEPATH)))) {
				output.writeObject(INSTANCE);
			}
		} catch (final IOException e) {
			LOGGER.severe("Couldn't write existing profile to disk. " + e.getMessage());
		}
	}

	public void load() {
		try (ObjectInput input = new ObjectInputStream(new BufferedInputStream(
				Files.newInputStream(FILEPATH)))) {
			// deserialize the list
			final UserDataStore data = (UserDataStore) input.readObject();
			INSTANCE.setStartDate(data.getStartDate());
			INSTANCE.setUserName(data.getUserName());
			INSTANCE.setProjectName(data.getProjectName());
		} catch (final Exception e) {
			LOGGER.warning("Couldn't load existing profile from disk. " + e.getMessage());
		}
	}

	public void setUserName(final String name) {
		this.userName = name;
	}

	public void setStartDate(final Date date) {
		this.startDate = date;
	}

	public String getUserName() {
		return userName;
	}

	public Date getStartDate() {
		return startDate;
	}

	public String getPassword() {
		return password;
	}

	public void setPassword(final String password) {
		this.password = password;
	}

	public String getProjectName() {
		return projectName;
	}

	public void setProjectName(final String projectName) {
		this.projectName = projectName;
	}

	/*
	 * Helper
	 */
	public void setCredentials(final String userName, final String password) {
		this.setUserName(userName);
		this.setPassword(password);
	}

	public void clearStartDate() {
		setStartDate(null);
	}

	public boolean isCheckedIn() {
		return null != getStartDate();
	}
}