org.cybergarage.util.FileUtil Maven / Gradle / Ivy
/******************************************************************
*
* CyberUtil for Java
*
* Copyright (C) Satoshi Konno 2002-2003
*
* File: FileUtil.java
*
* Revision:
*
* 01/03/03
* - first revision.
*
******************************************************************/
package org.cybergarage.util;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.util.Locale;
public final class FileUtil
{
public final static byte[] load(String fileName)
{
try {
FileInputStream fin=new FileInputStream(fileName);
return load(fin);
}
catch (Exception e) {
Debug.warning(e);
return new byte[0];
}
}
public final static byte[] load(File file)
{
try {
FileInputStream fin=new FileInputStream(file);
return load(fin);
}
catch (Exception e) {
Debug.warning(e);
return new byte[0];
}
}
public final static byte[] load(FileInputStream fin)
{
byte readBuf[] = new byte[512*1024];
try {
ByteArrayOutputStream bout = new ByteArrayOutputStream();
int readCnt = fin.read(readBuf);
while (0 < readCnt) {
bout.write(readBuf, 0, readCnt);
readCnt = fin.read(readBuf);
}
fin.close();
return bout.toByteArray();
}
catch (Exception e) {
Debug.warning(e);
return new byte[0];
}
}
public final static boolean isXMLFileName(String name)
{
if (StringUtil.hasData(name) == false)
return false;
String lowerName = name.toLowerCase(Locale.US);
return lowerName.endsWith("xml");
}
}