ensemble.util.Utils Maven / Gradle / Ivy
/*
* Copyright (c) 2008, 2014, Oracle and/or its affiliates.
* All rights reserved. Use is subject to license terms.
*
* This file is available and licensed under the following license:
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - 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.
* - Neither the name of Oracle Corporation 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
* OWNER 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 ensemble.util;
import java.io.*;
import java.net.MalformedURLException;
import java.net.URL;
/**
* Misc Utilities
*/
public class Utils {
/**
* Load a text file into a String
*
* @param url The url to load file from
* @return file contents as a string
*/
public static String loadFile(String url) {
try {
return loadFile(new URL(url));
} catch (MalformedURLException e) {
e.printStackTrace();
return null;
}
}
/**
* Load a text file into a String
*
* @param url The url to load file from
* @return file contents as a string
*/
public static String loadFile(URL url) {
if (url == null) return "File is not available";
StringBuilder sb = new StringBuilder();
try {
BufferedReader reader = new BufferedReader(new InputStreamReader(url.openStream()));
String line;
while ((line = reader.readLine()) != null) {
sb.append(line);
sb.append('\n');
}
reader.close();
} catch (IOException e) {
e.printStackTrace();
}
return sb.toString();
}
/**
* Copy a file from a URL to a destination file
*
* @param url The url to copy file from
* @param destFilePath The destination File
*/
public static void copyFile(URL url, String destFilePath) {
byte[] buffer = new byte[4096];
// File destFile = null;
InputStream inputStream = null;
FileOutputStream fileOutputStream = null;
try {
File destFile = new File(destFilePath);
fileOutputStream = new FileOutputStream(destFile);
inputStream = url.openStream();
int bytesRead = inputStream.read(buffer);
while (bytesRead != -1) {
fileOutputStream.write(buffer, 0, bytesRead);
bytesRead = inputStream.read(buffer);
}
} catch (IOException ioe) {
ioe.printStackTrace();
} finally {
try {
if (inputStream != null) {
inputStream.close();
}
if (fileOutputStream != null) {
fileOutputStream.close();
}
} catch (IOException ioe) {
ioe.printStackTrace();
}
}
}
}