com.atlassian.clover.util.IOStreamUtils Maven / Gradle / Ivy

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Clover's runtime library - required by code instrumented by Clover. Clover is an award-winning code coverage and testing tool for Java and Groovy. It integrates easily with Maven, Ant, Grails, Eclipse and IntelliJ IDEA as well as with continuous integration servers such as Bamboo, Jenkins or Hudson.

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package com.atlassian.clover.util;

import com.atlassian.clover.Logger;

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.Closeable;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.nio.file.Files;
import java.util.zip.Deflater;
import java.util.zip.DeflaterOutputStream;
import java.util.zip.InflaterInputStream;

public class IOStreamUtils {

    public static void close(Closeable closeable) {
        if (closeable != null) {
            try {
                closeable.close();
            } catch (IOException e) {
                Logger.getInstance().verbose("Failed to close resource: " + closeable, e);
            }
        }
    }

    public static OutputStream createDeflateOutputStream(final File file) throws FileNotFoundException {
        return new BufferedOutputStream(new DeflaterOutputStream(FOSFactory.newFOS(file), new Deflater(Deflater.BEST_SPEED), 8192));
    }

    public static InputStream createInflaterInputStream(final File file) throws IOException {
        return new BufferedInputStream(new InflaterInputStream(new BufferedInputStream(Files.newInputStream(file.toPath()))));
    }

    public static void writeChars(String str, DataOutputStream out) throws IOException {
        str = str == null ? "" : str;
        out.writeInt(str.length());
        out.writeChars(str);
    }

}