Move src files to standard java folder structure

src/main/java/com/sheepit/client/Log.java

@@ -0,0 +1,130 @@
+/*
+ * Copyright (C) 2011-2014 Laurent CLOUET
+ * Author Laurent CLOUET <laurent.clouet@nopnop.net>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+
+package com.sheepit.client;
+
+import java.text.DateFormat;
+import java.text.SimpleDateFormat;
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Optional;
+
+public class Log {
+	private static Log instance = null;
+	
+	private Map<Integer, ArrayList<String>> checkpoints = new HashMap<Integer, ArrayList<String>>();
+	private int lastCheckPoint;
+	private DateFormat dateFormat;
+	
+	private boolean printStdOut;
+	
+	private Log(boolean print_) {
+		this.printStdOut = print_;
+		this.lastCheckPoint = 0;
+		this.checkpoints.put(this.lastCheckPoint, new ArrayList<String>());
+		this.dateFormat = new SimpleDateFormat("dd-MM HH:mm:ss");
+	}
+	
+	public void debug(String msg_) {
+		this.debug(-1, msg_);
+	}
+
+	public void debug(int point_, String msg_) {
+		this.append(point_, "debug", msg_);
+	}
+	
+	public void info(String msg_) {
+		this.info(-1, msg_);
+	}
+	
+	public void info(int point_, String msg_) {
+		this.append(point_, "info", msg_);
+	}
+	
+	public void error(String msg_) {
+		this.error(-1, msg_);
+	}
+
+	public void error(int point_, String msg_) {
+		this.append(point_, "error", msg_);
+	}
+	
+	private synchronized void append(int point_, String level_, String msg_) {
+		String line = null;
+		
+		try {
+			int checkpointToWrite = (point_ > 0 ? point_ : this.lastCheckPoint);
+			
+			if (msg_.equals("") == false) {
+				line = this.dateFormat.format(new java.util.Date()) + " (" + level_ + ") " + msg_;
+				if (this.checkpoints.containsKey(checkpointToWrite) && this.checkpoints.get(checkpointToWrite) != null) {
+					this.checkpoints.get(checkpointToWrite).add(line);
+				}
+				if (this.printStdOut) {
+					System.out.println(line);
+				}
+			}
+		}
+		catch (Exception e) {
+			// Nothing to do here. Just allow the thread to continue
+		}
+	}
+	
+	public int newCheckPoint() {
+		int time = (int) (new Date().getTime());
+		this.checkpoints.put(time, new ArrayList<String>());
+		this.lastCheckPoint = time;
+		return this.lastCheckPoint;
+	}
+	
+	public Optional<ArrayList<String>> getForCheckPoint(int point_) {
+		return Optional.ofNullable(this.checkpoints.get(point_));
+	}
+	
+	public void removeCheckPoint(int point_) {
+		try {
+			this.checkpoints.remove(point_);
+		}
+		catch (UnsupportedOperationException e) {
+		}
+	}
+	
+	public static synchronized Log getInstance(Configuration config) {
+		if (instance == null) {
+			boolean print = false;
+			if (config != null) {
+				print = config.isPrintLog();
+			}
+			instance = new Log(print);
+		}
+		return instance;
+	}
+	
+	public static synchronized void printCheckPoint(int point_) {
+		Log log = Log.getInstance(null);
+		Optional<ArrayList<String>> logs = log.getForCheckPoint(point_);
+		if (logs.isPresent()) {
+			for (String alog : logs.get()) {
+				System.out.println(alog);
+			}
+		}
+	}
+}