mamo.vanillaVotifier.Logger.java Source code

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Here is the source code for mamo.vanillaVotifier.Logger.java

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/*
 * Copyright (C) 2016  Matteo Morena
 *
 * 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, either version 3 of the License, or
 * (at your option) any later version.
 *
 * 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, see <http://www.gnu.org/licenses/>.
 */

package mamo.vanillaVotifier;

import org.apache.commons.lang3.exception.ExceptionUtils;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;

import java.io.BufferedWriter;
import java.io.FileOutputStream;
import java.io.OutputStreamWriter;
import java.util.Map.Entry;

public class Logger {
    @NotNull
    protected VanillaVotifier votifier;
    @NotNull
    protected StringBuffer buffer = new StringBuffer();
    private BufferedWriter logWriter;

    public Logger(@NotNull VanillaVotifier votifier) {
        this.votifier = votifier;
    }

    public void print(@Nullable Object object) {
        String string = toString(object);
        synchronized (votifier.getWriter()) {
            try {
                votifier.getWriter().write(string);
                votifier.getWriter().flush();
            } catch (Exception e) { // IOException
                // Can't happen.
            }
        }
        initWriterIfVotifierIsLoaded();
        if (logWriter != null) {
            synchronized (logWriter) {
                buffer.append(string);
                try {
                    logWriter.write(buffer.toString());
                    buffer.setLength(0);
                    logWriter.flush();
                } catch (Exception e) {
                    // Ignoring.
                }
            }
        } else {
            buffer.append(string);
        }
    }

    public void println(@Nullable Object object) {
        print(toString(object));
        print(System.getProperty("line.separator"));
    }

    @NotNull
    public String toString(@Nullable Object object) {
        if (object == null) {
            return "";
        }
        if (!(object instanceof Throwable)) {
            return object.toString();
        } else {
            return ExceptionUtils.getStackTrace((Throwable) object);
        }
    }

    public void printTranslation(@NotNull String key, @Nullable Entry<String, Object>... substitutions) {
        print(votifier.getLanguagePack().getString(key, substitutions));
    }

    public void printlnTranslation(@NotNull String key, @Nullable Entry<String, Object>... substitutions) {
        println(votifier.getLanguagePack().getString(key, substitutions));
    }

    private void initWriterIfVotifierIsLoaded() {
        if (logWriter == null && votifier.getConfig().getLogFile() != null) {
            try {
                logWriter = new BufferedWriter(
                        new OutputStreamWriter(new FileOutputStream(votifier.getConfig().getLogFile())));
            } catch (Exception e) {
                // FileNotFoundException, UnsupportedEncodingException: ignoring.
            }
        }
    }
}