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Migrated configuration and logging to Envoy Common (#113) 

* Moved client specific configuration to ClientConfig

* Finished ClientConfig integration, checking init state in EnvoyLog

* Migrated Config, ConfigItem and EnvoyLog to envoy-common

* Updated envoy-common dependency to develop-SNAPSHOT
This commit is contained in:
Kai S. K. Engelbart 2020-03-05 14:27:40 +01:00 committed by GitHub
parent 69537d843d
commit 930d1cebe1
18 changed files with 50 additions and 306 deletions
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2
pom.xml
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@ -28,7 +28,7 @@
<dependency>
<groupId>com.github.informatik-ag-ngl</groupId>
<artifactId>envoy-common</artifactId>
<version>v0.2-alpha</version>
<version>develop-SNAPSHOT</version>
</dependency>
</dependencies>

2
src/main/java/envoy/client/data/Cache.java
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@ -6,7 +6,7 @@ import java.util.Queue;
import java.util.function.Consumer;
import java.util.logging.Logger;
import envoy.client.util.EnvoyLog;
import envoy.util.EnvoyLog;
/**
* Stores elements in a queue to process them later.<br>

99
src/main/java/envoy/client/data/Config.java → src/main/java/envoy/client/data/ClientConfig.java
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@ -2,33 +2,38 @@ package envoy.client.data;
import java.io.File;
import java.security.NoSuchAlgorithmException;
import java.util.*;
import java.util.function.Function;
import java.util.logging.Level;
import envoy.data.Config;
import envoy.data.ConfigItem;
import envoy.data.LoginCredentials;
import envoy.exception.EnvoyException;
/**
* Manages all application settings that are set during application startup by
* either loading them from the {@link Properties} file
* {@code client.properties} or parsing them from the command line arguments of
* the application.<br>
* Implements a configuration specific to the Envoy Client with default values
* and convenience methods.<br>
* <br>
* Project: <strong>envoy-client</strong><br>
* File: <strong>Config.java</strong><br>
* Created: <strong>12 Oct 2019</strong><br>
* File: <strong>ClientConfig.java</strong><br>
* Created: <strong>01.03.2020</strong><br>
*
* @author Kai S. K. Engelbart
* @since Envoy v0.1-alpha
* @since Envoy v0.1-beta
*/
public class Config {
public class ClientConfig extends Config {
private Map<String, ConfigItem<?>> items = new HashMap<>();
private static ClientConfig config;
private static Config config;
/**
* @return the singleton instance of the client config
* @since Envoy v0.1-beta
*/
public static ClientConfig getInstance() {
if (config == null) config = new ClientConfig();
return config;
}
private Config() {
private ClientConfig() {
items.put("server", new ConfigItem<>("server", "s", Function.identity(), null, true));
items.put("port", new ConfigItem<>("port", "p", Integer::parseInt, null, true));
items.put("localDB", new ConfigItem<>("localDB", "db", File::new, new File("localDB"), true));
@ -40,72 +45,6 @@ public class Config {
items.put("password", new ConfigItem<>("password", "pw", String::toCharArray));
}
/**
* @return the singleton instance of the {@link Config}
* @since Envoy v0.1-alpha
*/
public static Config getInstance() {
if (config == null) config = new Config();
return config;
}
/**
* Defaults to the {@code client.properties} file for information.
* This file contains information about
* the server and port, as well as the path to the local
* database and the synchronization timeout
*
* @throws EnvoyException if the {@code client.properties} file could not be
* loaded
* @since Envoy v0.1-alpha
*/
public void load() throws EnvoyException {
ClassLoader loader = getClass().getClassLoader();
try {
Properties properties = new Properties();
properties.load(loader.getResourceAsStream("client.properties"));
items.forEach((name, item) -> { if (properties.containsKey(name)) item.parse(properties.getProperty(name)); });
} catch (Exception e) {
throw new EnvoyException("Failed to load client.properties", e);
}
}
/**
* Sets the server, port and localDB path via command line properties --server /
* -s, --port / -p and --localDB / -db.
*
* @param args the command line arguments to parse
* @throws EnvoyException if the command line arguments contain an unknown token
* @since Envoy v0.1-alpha
*/
public void load(String[] args) throws EnvoyException {
for (int i = 0; i < args.length; i++)
for (ConfigItem<?> item : items.values())
if (args[i].startsWith("--")) {
if (args[i].length() == 2) throw new EnvoyException("Malformed command line argument at position " + i);
final String commandLong = args[i].substring(2);
if (item.getCommandLong().equals(commandLong)) {
item.parse(args[++i]);
break;
}
} else if (args[i].startsWith("-")) {
if (args[i].length() == 1) throw new EnvoyException("Malformed command line argument at position " + i);
final String commandShort = args[i].substring(1);
if (item.getCommandShort().equals(commandShort)) {
item.parse(args[++i]);
break;
}
} else throw new EnvoyException("Malformed command line argument at position " + i);
}
/**
* @return {@code true} if all mandatory config items are initialized
* @since Envoy v0.1-alpha
*/
public boolean isInitialized() {
return items.values().stream().filter(ConfigItem::isMandatory).map(ConfigItem::get).noneMatch(Objects::isNull);
}
/**
* @return the host name of the Envoy server
* @since Envoy v0.1-alpha
@ -178,4 +117,4 @@ public class Config {
return null;
}
}
}
}

92
src/main/java/envoy/client/data/ConfigItem.java
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@ -1,92 +0,0 @@
package envoy.client.data;
import java.util.function.Function;
/**
* Contains a single {@link Config} value as well as the corresponding command
* line arguments and its default value.<br>
* <br>
* Project: <strong>envoy-clientChess</strong><br>
* File: <strong>ConfigItem.javaEvent.java</strong><br>
* Created: <strong>21.12.2019</strong><br>
*
* @author Kai S. K. Engelbart
* @param <T> the type of the config item's value
* @since Envoy v0.2-alpha
*/
public class ConfigItem<T> {
private final String commandLong, commandShort;
private final Function<String, T> parseFunction;
private final boolean mandatory;
private T value;
/**
* Initializes a {@link ConfigItem}.
*
* @param commandLong the long command line argument to set this value
* @param commandShort the short command line argument to set this value
* @param parseFunction the {@code Function<String, T>} that parses the value
* from a string
* @param defaultValue the optional default value to set before parsing
* @param mandatory indicated that this config item must be initialized with
* a non-null value
* @since Envoy v0.2-alpha
*/
public ConfigItem(String commandLong, String commandShort, Function<String, T> parseFunction, T defaultValue, boolean mandatory) {
this.commandLong = commandLong;
this.commandShort = commandShort;
this.parseFunction = parseFunction;
this.mandatory = mandatory;
value = defaultValue;
}
/**
* Initializes an optional {@link ConfigItem} without a default value.
*
* @param commandLong the long command line argument to set this value
* @param commandShort the short command line argument to set this value
* @param parseFunction the {@code Function<String, T>} that parses the value
* from a string
* @since Envoy v0.3-alpha
*/
public ConfigItem(String commandLong, String commandShort, Function<String, T> parseFunction) {
this(commandLong, commandShort, parseFunction, null, false);
}
/**
* Parses this {@ConfigItem}'s value from a string.
*
* @param input the string to parse from
* @since Envoy v0.2-alpha
*/
public void parse(String input) { value = parseFunction.apply(input); }
/**
* @return The long command line argument to set the value of this
* {@link ConfigItem}
* @since Envoy v0.2-alpha
*/
public String getCommandLong() { return commandLong; }
/**
* @return The short command line argument to set the value of this
* {@link ConfigItem}
* @since Envoy v0.2-alpha
*/
public String getCommandShort() { return commandShort; }
/**
* @return the value of this {@link ConfigItem}
* @since Envoy v0.2-alpha
*/
public T get() { return value; }
/**
* @return {@code true} if this {@link ConfigItem} is mandatory for successful
* application initialization
* @since Envoy v0.3-alpha
*/
public boolean isMandatory() { return mandatory; }
}

1
src/main/java/envoy/client/data/PersistentLocalDb.java
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@ -5,6 +5,7 @@ import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import envoy.data.ConfigItem;
import envoy.data.IdGenerator;
import envoy.util.SerializationUtils;

4
src/main/java/envoy/client/data/Settings.java
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@ -33,12 +33,12 @@ public class Settings {
/**
* Settings are stored in this file.
*/
private static final File settingsFile = new File(Config.getInstance().getHomeDirectory(), "settings.ser");
private static final File settingsFile = new File(ClientConfig.getInstance().getHomeDirectory(), "settings.ser");
/**
* User-defined themes are stored inside this file.
*/
private static final File themeFile = new File(Config.getInstance().getHomeDirectory(), "themes.ser");
private static final File themeFile = new File(ClientConfig.getInstance().getHomeDirectory(), "themes.ser");
/**
* Singleton instance of this class.

8
src/main/java/envoy/client/net/Client.java
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@ -10,13 +10,13 @@ import java.util.logging.Logger;
import javax.naming.TimeLimitExceededException;
import envoy.client.data.Cache;
import envoy.client.data.Config;
import envoy.client.data.ClientConfig;
import envoy.client.data.LocalDb;
import envoy.client.event.SendEvent;
import envoy.client.util.EnvoyLog;
import envoy.data.*;
import envoy.event.*;
import envoy.event.ContactOperationEvent.Operation;
import envoy.util.EnvoyLog;
import envoy.util.SerializationUtils;
/**
@ -45,8 +45,8 @@ public class Client implements Closeable {
private volatile boolean rejected;
// Configuration and logging
private static final Config config = Config.getInstance();
private static final Logger logger = EnvoyLog.getLogger(Client.class);
private static final ClientConfig config = ClientConfig.getInstance();
private static final Logger logger = EnvoyLog.getLogger(Client.class);
/**
* Enters the online mode by acquiring a user ID from the server. As a

2
src/main/java/envoy/client/net/MessageStatusChangeEventProcessor.java
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@ -3,10 +3,10 @@ package envoy.client.net;
import java.util.function.Consumer;
import java.util.logging.Logger;
import envoy.client.util.EnvoyLog;
import envoy.data.Message.MessageStatus;
import envoy.event.EventBus;
import envoy.event.MessageStatusChangeEvent;
import envoy.util.EnvoyLog;
/**
* Project: <strong>envoy-client</strong><br>

2
src/main/java/envoy/client/net/ReceivedMessageProcessor.java
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@ -4,10 +4,10 @@ import java.util.function.Consumer;
import java.util.logging.Logger;
import envoy.client.event.MessageCreationEvent;
import envoy.client.util.EnvoyLog;
import envoy.data.Message;
import envoy.data.Message.MessageStatus;
import envoy.event.EventBus;
import envoy.util.EnvoyLog;
/**
* Project: <strong>envoy-client</strong><br>

2
src/main/java/envoy/client/net/Receiver.java
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@ -10,7 +10,7 @@ import java.util.function.Consumer;
import java.util.logging.Level;
import java.util.logging.Logger;
import envoy.client.util.EnvoyLog;
import envoy.util.EnvoyLog;
import envoy.util.SerializationUtils;
/**

2
src/main/java/envoy/client/net/WriteProxy.java
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@ -5,9 +5,9 @@ import java.util.logging.Level;
import java.util.logging.Logger;
import envoy.client.data.LocalDb;
import envoy.client.util.EnvoyLog;
import envoy.data.Message;
import envoy.event.MessageStatusChangeEvent;
import envoy.util.EnvoyLog;
/**
* Implements methods to send {@link Message}s and

2
src/main/java/envoy/client/ui/ChatWindow.java
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@ -22,12 +22,12 @@ import envoy.client.net.WriteProxy;
import envoy.client.ui.list.ComponentList;
import envoy.client.ui.list.ComponentListModel;
import envoy.client.ui.settings.SettingsScreen;
import envoy.client.util.EnvoyLog;
import envoy.data.Message;
import envoy.data.Message.MessageStatus;
import envoy.data.MessageBuilder;
import envoy.data.User;
import envoy.event.*;
import envoy.util.EnvoyLog;
/**
* Project: <strong>envoy-client</strong><br>

8
src/main/java/envoy/client/ui/LoginDialog.java
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@ -14,13 +14,13 @@ import javax.swing.border.EmptyBorder;
import envoy.client.data.*;
import envoy.client.event.HandshakeSuccessfulEvent;
import envoy.client.net.Client;
import envoy.client.util.EnvoyLog;
import envoy.data.LoginCredentials;
import envoy.data.Message;
import envoy.data.User;
import envoy.event.EventBus;
import envoy.event.HandshakeRejectionEvent;
import envoy.exception.EnvoyException;
import envoy.util.EnvoyLog;
/**
* Project: <strong>envoy-client</strong><br>
@ -59,9 +59,9 @@ public class LoginDialog extends JDialog {
private final LocalDb localDb;
private final Cache<Message> receivedMessageCache;
private static final Config config = Config.getInstance();
private static final Logger logger = EnvoyLog.getLogger(LoginDialog.class);
private static final long serialVersionUID = 352021600833907468L;
private static final ClientConfig config = ClientConfig.getInstance();
private static final Logger logger = EnvoyLog.getLogger(LoginDialog.class);
private static final long serialVersionUID = 352021600833907468L;
/**
* Displays a dialog enabling the user to enter their user name and password.

17
src/main/java/envoy/client/ui/Startup.java
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@ -4,6 +4,7 @@ import java.awt.EventQueue;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.Properties;
import java.util.logging.Level;
import java.util.logging.Logger;
@ -14,9 +15,10 @@ import javax.swing.SwingUtilities;
import envoy.client.data.*;
import envoy.client.net.Client;
import envoy.client.net.WriteProxy;
import envoy.client.util.EnvoyLog;
import envoy.data.Config;
import envoy.data.Message;
import envoy.exception.EnvoyException;
import envoy.util.EnvoyLog;
/**
* Starts the Envoy client and prompts the user to enter their name.<br>
@ -48,13 +50,15 @@ public class Startup {
* @since Envoy v0.1-alpha
*/
public static void main(String[] args) {
Config config = Config.getInstance();
ClientConfig config = ClientConfig.getInstance();
SwingUtilities.invokeLater(() -> chatWindow = new ChatWindow());
try {
// Load the configuration from client.properties first
config.load();
Properties properties = new Properties();
properties.load(Startup.class.getClassLoader().getResourceAsStream("client.properties"));
config.load(properties);
// Override configuration values with command line arguments
if (args.length > 0) config.load(args);
@ -62,13 +66,13 @@ public class Startup {
// Check if all mandatory configuration values have been initialized
if (!config.isInitialized()) throw new EnvoyException("Configuration is not fully initialized");
} catch (Exception e) {
JOptionPane
.showMessageDialog(null, "Error loading configuration values:\n" + e.toString(), "Configuration error", JOptionPane.ERROR_MESSAGE);
JOptionPane.showMessageDialog(null, "Error loading configuration values:\n" + e, "Configuration error", JOptionPane.ERROR_MESSAGE);
e.printStackTrace();
System.exit(1);
}
// Setup logger for the envoy package
EnvoyLog.initialize(config);
EnvoyLog.attach("envoy");
EnvoyLog.setFileLevelBarrier(config.getFileLevelBarrier());
EnvoyLog.setConsoleLevelBarrier(config.getConsoleLevelBarrier());
@ -85,8 +89,7 @@ public class Startup {
localDb = new PersistentLocalDb(new File(config.getHomeDirectory(), config.getLocalDB().getPath()));
} catch (IOException e3) {
logger.log(Level.SEVERE, "Could not initialize local database", e3);
JOptionPane
.showMessageDialog(null, "Could not initialize local database!\n" + e3, "Local database error", JOptionPane.ERROR_MESSAGE);
JOptionPane.showMessageDialog(null, "Could not initialize local database!\n" + e3, "Local database error", JOptionPane.ERROR_MESSAGE);
System.exit(1);
return;
}

2
src/main/java/envoy/client/ui/settings/GeneralSettingsPanel.java
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@ -13,7 +13,7 @@ import javax.swing.JTextPane;
import envoy.client.data.Settings;
import envoy.client.data.SettingsItem;
import envoy.client.ui.Theme;
import envoy.client.util.EnvoyLog;
import envoy.util.EnvoyLog;
/**
* Displays GUI components that allow general settings regarding the client.<br>

2
src/main/java/envoy/client/ui/settings/SettingsScreen.java
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@ -13,8 +13,8 @@ import envoy.client.data.Settings;
import envoy.client.event.ThemeChangeEvent;
import envoy.client.ui.PrimaryButton;
import envoy.client.ui.Theme;
import envoy.client.util.EnvoyLog;
import envoy.event.EventBus;
import envoy.util.EnvoyLog;
/**
* This class provides the GUI to change the user specific settings.<br>

2
src/main/java/envoy/client/ui/settings/ThemeCustomizationPanel.java
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@ -13,8 +13,8 @@ import envoy.client.data.Settings;
import envoy.client.event.ThemeChangeEvent;
import envoy.client.ui.Color;
import envoy.client.ui.Theme;
import envoy.client.util.EnvoyLog;
import envoy.event.EventBus;
import envoy.util.EnvoyLog;
/**
* Displays GUI components that allow changing the current {@Theme} and creating

107
src/main/java/envoy/client/util/EnvoyLog.java
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@ -1,107 +0,0 @@
package envoy.client.util;
import java.io.File;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.logging.*;
import envoy.client.data.Config;
/**
* Configures the {@link java.util.logging} API to output the log into the
* console and a log file.<br>
* <br>
* Call the {@link EnvoyLog#attach(String)} method to configure a part of the
* logger hierarchy.<br>
* <br>
* Project: <strong>envoy-client</strong><br>
* File: <strong>EnvoyLogger.java</strong><br>
* Created: <strong>14 Dec 2019</strong><br>
*
* @author Leon Hofmeister
* @author Kai S. K. Engelbart
* @since Envoy v0.2-alpha
*/
public class EnvoyLog {
private static FileHandler fileHandler;
private static StreamHandler consoleHandler;
static {
// Remove default console handler
LogManager.getLogManager().reset();
// Configure log file
File logFile = new File(Config.getInstance().getHomeDirectory(),
"log/envoy_user_" + new SimpleDateFormat("yyyy-MM-dd--hh-mm-mm").format(new Date()) + ".log");
logFile.getParentFile().mkdirs();
// Configure formatting
System.setProperty("java.util.logging.SimpleFormatter.format", "[%1$tF %1$tT] [%4$-7s] [%3$s] %5$s %n");
SimpleFormatter formatter = new SimpleFormatter();
try {
fileHandler = new FileHandler(logFile.getAbsolutePath());
fileHandler.setLevel(Config.getInstance().getFileLevelBarrier());
fileHandler.setFormatter(formatter);
} catch (SecurityException | IOException e) {
e.printStackTrace();
}
consoleHandler = new StreamHandler(System.out, formatter);
consoleHandler.setLevel(Config.getInstance().getConsoleLevelBarrier());
consoleHandler.setFormatter(formatter);
}
private EnvoyLog() {}
/**
* Configures all loggers that are contained within the hierarchy of a specific
* path to use the console and file handlers.
*
* @param path the path to the loggers to configure
* @since Envoy Client v0.1-beta
*/
public static void attach(String path) {
// Get root logger
Logger logger = Logger.getLogger(path);
// Add handlers
if (fileHandler != null) logger.addHandler(fileHandler);
logger.addHandler(consoleHandler);
// Delegate logger level filtering to the handlers
logger.setLevel(Level.ALL);
}
/**
* Creates a logger for a specified class, which output will be displayed inside
* the console and written to the log file.
*
* @param logClass the class in which the logger is used
* @return the created logger
* @since Envoy v0.2-alpha
*/
public static Logger getLogger(Class<?> logClass) {
return Logger.getLogger(logClass.getCanonicalName());
}
/**
* Defines the logger level required for a record to be written to the log file.
*
* @param fileLevelBarrier the log file level
* @since Envoy v0.2-alpha
*/
public static void setFileLevelBarrier(Level fileLevelBarrier) { if (fileHandler != null) fileHandler.setLevel(fileLevelBarrier); }
/**
* Defines the logger level required for a record to be written to the console.
*
* @param consoleLevelBarrier the console logger level
* @since Envoy v0.2-alpha
*/
public static void setConsoleLevelBarrier(Level consoleLevelBarrier) {
if (consoleHandler != null) consoleHandler.setLevel(consoleLevelBarrier);
}
}