iSharkFly-Docs/java-tutorials
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

file conversion work

Browse Source
This commit is contained in:
eugenp 2014-06-21 18:31:20 +03:00
parent 7e5f20e166
commit df3b2605e3
2 changed files with 45 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
core-java/src/main/resources/targetFile.tmp Normal file
View File

@ -0,0 +1,2 @@
line 1
a second line

43
core-java/src/test/java/org/baeldung/java/io/JavaInputStreamToXUnitTest.java
View File

@ -7,15 +7,20 @@ import static org.junit.Assert.assertThat;
import java.io.BufferedReader;
import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.Reader;
import java.io.StringWriter;
import java.nio.charset.Charset;
import java.nio.charset.StandardCharsets;
import java.util.Scanner;
import org.apache.commons.io.FileUtils;
import org.apache.commons.io.IOUtils;
import org.junit.Test;
import org.slf4j.Logger;
@ -25,6 +30,7 @@ import com.google.common.base.Charsets;
import com.google.common.io.ByteSource;
import com.google.common.io.ByteStreams;
import com.google.common.io.CharStreams;
import com.google.common.io.Files;
import com.google.common.io.InputSupplier;
@SuppressWarnings("unused")
@ -140,4 +146,41 @@ public class JavaInputStreamToXUnitTest {
final byte[] targetArray = IOUtils.toByteArray(initialStream);
}
// tests - InputStream to File
@Test
public final void givenUsingPlainJava_whenConvertingAnInputStreamToAFile_thenCorrect() throws IOException {
final InputStream initialStream = new FileInputStream(new File("src/main/resources/sample.txt"));
final byte[] buffer = new byte[initialStream.available()];
initialStream.read(buffer);
final File targetFile = new File("src/main/resources/targetFile.tmp");
final OutputStream outStream = new FileOutputStream(targetFile);
outStream.write(buffer);
IOUtils.closeQuietly(initialStream);
IOUtils.closeQuietly(outStream);
}
@Test
public final void givenUsingGuava_whenConvertingAnInputStreamToAFile_thenCorrect() throws IOException {
final InputStream initialStream = new FileInputStream(new File("src/main/resources/sample.txt"));
final byte[] buffer = new byte[initialStream.available()];
initialStream.read(buffer);
final File targetFile = new File("src/main/resources/targetFile.tmp");
Files.write(buffer, targetFile);
IOUtils.closeQuietly(initialStream);
}
@Test
public final void givenUsingCommonsIO_whenConvertingAnInputStreamToAFile_thenCorrect() throws IOException {
final InputStream initialStream = FileUtils.openInputStream(new File("src/main/resources/sample.txt"));
final File targetFile = new File("src/main/resources/targetFile.tmp");
FileUtils.copyInputStreamToFile(initialStream, targetFile);
}
}