Here you can find the source of openNewCompressedInputReader(final InputStream inputStream, final Charset charset)
private static Reader openNewCompressedInputReader(final InputStream inputStream, final Charset charset) throws IOException
//package com.java2s; /*//w w w.j av a 2s.c o m ======================================================================== SchemaCrawler http://www.schemacrawler.com Copyright (c) 2000-2016, Sualeh Fatehi <sualeh@hotmail.com>. All rights reserved. ------------------------------------------------------------------------ SchemaCrawler 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. SchemaCrawler and the accompanying materials are made available under the terms of the Eclipse Public License v1.0, GNU General Public License v3 or GNU Lesser General Public License v3. You may elect to redistribute this code under any of these licenses. The Eclipse Public License is available at: http://www.eclipse.org/legal/epl-v10.html The GNU General Public License v3 and the GNU Lesser General Public License v3 are available at: http://www.gnu.org/licenses/ ======================================================================== */ import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.io.Reader; import java.nio.charset.Charset; import java.util.zip.ZipInputStream; public class Main { private static Reader openNewCompressedInputReader(final InputStream inputStream, final Charset charset) throws IOException { final ZipInputStream zipInputStream = new ZipInputStream(inputStream); zipInputStream.getNextEntry(); return new InputStreamReader(zipInputStream, charset); } }