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fix if dir does not exist (#129) 

* fix if dir does not exist

Signed-off-by: eraly <susan.eraly@gmail.com>

* added simple test

Signed-off-by: eraly <susan.eraly@gmail.com>
master
Susan Eraly 2019-12-30 16:48:57 -08:00 committed by Adam Gibson
parent 010744ef9c
commit c32acb2ec7
2 changed files with 53 additions and 2 deletions
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4
nd4j/nd4j-common/src/main/java/org/nd4j/util/ArchiveUtils.java
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@ -24,8 +24,6 @@ import org.apache.commons.compress.compressors.gzip.GzipCompressorInputStream;
import org.apache.commons.io.FileUtils;
import org.apache.commons.io.IOUtils;
import org.nd4j.base.Preconditions;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.*;
import java.util.ArrayList;
@ -56,6 +54,8 @@ public class ArchiveUtils {
File target = new File(file);
if (!target.exists())
throw new IllegalArgumentException("Archive doesnt exist");
if (!new File(dest).exists())
new File(dest).mkdirs();
FileInputStream fin = new FileInputStream(target);
int BUFFER = 2048;
byte data[] = new byte[BUFFER];

51
nd4j/nd4j-common/src/test/java/org/nd4j/resources/TestArchiveUtils.java Normal file
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@ -0,0 +1,51 @@
package org.nd4j.resources;
import org.apache.commons.io.FileUtils;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.TemporaryFolder;
import org.nd4j.util.ArchiveUtils;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;
public class TestArchiveUtils {
@Rule
public TemporaryFolder testDir = new TemporaryFolder();
@Test
public void testUnzipFileTo() throws IOException {
//random txt file
File dir = testDir.newFolder();
String content = "test file content";
String path = "myDir/myTestFile.txt";
File testFile = new File(dir, path);
testFile.getParentFile().mkdir();
FileUtils.writeStringToFile(testFile, content, StandardCharsets.UTF_8);
//zip it as test.zip
File zipFile = new File(testFile.getParentFile(),"test.zip");
FileOutputStream fos = new FileOutputStream(zipFile);
ZipOutputStream zipOut = new ZipOutputStream(fos);
FileInputStream fis = new FileInputStream(testFile);
ZipEntry zipEntry = new ZipEntry(testFile.getName());
zipOut.putNextEntry(zipEntry);
byte[] bytes = new byte[1024];
int length;
while((length = fis.read(bytes)) >= 0) {
zipOut.write(bytes, 0, length);
}
zipOut.close();
fis.close();
fos.close();
//now unzip to a directory that doesn't previously exist
File unzipDir = new File(testFile.getParentFile(),"unzipTo");
ArchiveUtils.unzipFileTo(zipFile.getAbsolutePath(),unzipDir.getAbsolutePath());
}
}