com.rexsl.maven.packers.CssPacker Maven / Gradle / Ivy
/**
* Copyright (c) 2011-2013, ReXSL.com
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met: 1) Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer. 2) Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution. 3) Neither the name of the ReXSL.com nor
* the names of its contributors may be used to endorse or promote
* products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT
* NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.rexsl.maven.packers;
import com.yahoo.platform.yui.compressor.CssCompressor;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.io.Reader;
import java.io.Writer;
import javax.validation.constraints.NotNull;
import org.apache.commons.lang3.CharEncoding;
/**
* Packager of CSS files.
*
* All comments and unnecessary spaces are removed.
*
*
Since this class is NOT public its documentation is not available online.
* All details of this check should be explained in the JavaDoc of
* {@link PackersProvider}.
*
*
The class is immutable and thread-safe.
*
* @author Yegor Bugayenko ([email protected])
* @version $Id$
*/
final class CssPacker extends AbstractPacker {
@Override
protected String extension() {
return "css";
}
@Override
protected void pack(@NotNull final Reader input, @NotNull final File dest)
throws IOException {
try {
final Writer output = new OutputStreamWriter(
new FileOutputStream(dest),
CharEncoding.UTF_8
);
try {
new CssCompressor(input).compress(output, -1);
} finally {
output.close();
}
} finally {
input.close();
}
}
}