Move writer to util.io package.

[xudocci.git] / src / main / java / net / pterodactylus / xdcc / ui / stdin / DuplicateLineSuppressingWriter.java

diff --git a/src/main/java/net/pterodactylus/xdcc/ui/stdin/DuplicateLineSuppressingWriter.java b/src/main/java/net/pterodactylus/xdcc/ui/stdin/DuplicateLineSuppressingWriter.java
deleted file mode 100644 (file)
index dfd9ed5..0000000
--- a/src/main/java/net/pterodactylus/xdcc/ui/stdin/DuplicateLineSuppressingWriter.java
+++ /dev/null
@@ -1,119 +0,0 @@
-/*
- * XdccDownloader - DuplicateLineSuppressingWriter.java - Copyright © 2013 David Roden
- *
- * 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 net.pterodactylus.xdcc.ui.stdin;
-
-import java.io.IOException;
-import java.io.Writer;
-
-/**
- * {@link Writer} implementation that suppreses multiple identical lines written to it.
- *
- * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
- */
-public class DuplicateLineSuppressingWriter extends Writer {
-
-       private final Writer writer;
-       private String lastLine;
-       private final StringBuilder currentLine = new StringBuilder();
-
-       public DuplicateLineSuppressingWriter(Writer writer) {
-               this.writer = writer;
-       }
-
-       @Override
-       public void write(char[] cbuf) throws IOException {
-               write(cbuf, 0, cbuf.length);
-       }
-
-       @Override
-       public void write(String str) throws IOException {
-               write(str, 0, str.length());
-       }
-
-       @Override
-       public Writer append(CharSequence csq) throws IOException {
-               write(String.valueOf(csq));
-               return this;
-       }
-
-       @Override
-       public Writer append(CharSequence csq, int start, int end) throws IOException {
-               write(String.valueOf(csq).substring(start, end));
-               return this;
-       }
-
-       @Override
-       public Writer append(char c) throws IOException {
-               write(c);
-               return this;
-       }
-
-       @Override
-       public void flush() throws IOException {
-               writer.flush();
-       }
-
-       @Override
-       public void close() throws IOException {
-               writer.close();
-       }
-
-       @Override
-       public void write(int c) throws IOException {
-               currentLine.append((char) c);
-               writeCollectedLines();
-       }
-
-       @Override
-       public void write(char[] cbuf, int off, int len) throws IOException {
-               currentLine.append(cbuf, off, len);
-               writeCollectedLines();
-       }
-
-       @Override
-       public void write(String str, int off, int len) throws IOException {
-               currentLine.append(str, off, len);
-               writeCollectedLines();
-       }
-
-       private void writeCollectedLines() throws IOException {
-               while (currentLineContainsLineBreak()) {
-                       String nextLine = cutNextLine();
-                       maybeWriteNextLine(nextLine);
-               }
-       }
-
-       private void maybeWriteNextLine(String nextLine) throws IOException {
-               if (!nextLine.equals(lastLine)) {
-                       writer.write(nextLine);
-                       lastLine = nextLine;
-               }
-       }
-
-       private String cutNextLine() {
-               int indexOfLineBreak = currentLine.indexOf("\n");
-               String nextLine = currentLine.substring(0, indexOfLineBreak + 1);
-               currentLine.delete(0, indexOfLineBreak + 1);
-               return nextLine;
-       }
-
-       private boolean currentLineContainsLineBreak() {
-               return currentLine.indexOf("\n") > -1;
-       }
-
-}