Save URL contents to a file
/**
*
* The ObjectStyle Group Software License, version 1.1
* ObjectStyle Group - http://objectstyle.org/
*
* Copyright (c) 2002-2005, Andrei (Andrus) Adamchik and individual authors
* of the software. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. 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.
*
* 3. The end-user documentation included with the redistribution, if any,
* must include the following acknowlegement:
* "This product includes software developed by independent contributors
* and hosted on ObjectStyle Group web site (http://objectstyle.org/)."
* Alternately, this acknowlegement may appear in the software itself,
* if and wherever such third-party acknowlegements normally appear.
*
* 4. The names "ObjectStyle Group" and "Cayenne" must not be used to endorse
* or promote products derived from this software without prior written
* permission. For written permission, email
* "andrus at objectstyle dot org".
*
* 5. Products derived from this software may not be called "ObjectStyle"
* or "Cayenne", nor may "ObjectStyle" or "Cayenne" appear in their
* names without prior written permission.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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 OBJECTSTYLE GROUP OR
* ITS 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.
*
*
* This software consists of voluntary contributions made by many
* individuals and hosted on ObjectStyle Group web site. For more
* information on the ObjectStyle Group, please see
* <http://objectstyle.org/>.
*/
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.BufferedReader;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.OutputStream;
import java.io.Serializable;
import java.lang.reflect.Member;
import java.lang.reflect.Modifier;
import java.net.URL;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.Comparator;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.regex.Pattern;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;
import org.xml.sax.SAXException;
import org.xml.sax.XMLReader;
/**
* Contains various unorganized static utility methods used across Cayenne.
*
* @author Andrei Adamchik
*/
public class Util {
/**
* Copies file contents from source to destination. Makes up for the lack of file
* copying utilities in Java
*/
public static boolean copy(File source, File destination) {
BufferedInputStream fin = null;
BufferedOutputStream fout = null;
try {
int bufSize = 8 * 1024;
fin = new BufferedInputStream(new FileInputStream(source), bufSize);
fout = new BufferedOutputStream(new FileOutputStream(destination), bufSize);
copyPipe(fin, fout, bufSize);
}
catch (IOException ioex) {
return false;
}
catch (SecurityException sx) {
return false;
}
finally {
if (fin != null) {
try {
fin.close();
}
catch (IOException cioex) {
}
}
if (fout != null) {
try {
fout.close();
}
catch (IOException cioex) {
}
}
}
return true;
}
/**
* Save URL contents to a file.
*/
public static boolean copy(URL from, File to) {
BufferedInputStream urlin = null;
BufferedOutputStream fout = null;
try {
int bufSize = 8 * 1024;
urlin = new BufferedInputStream(
from.openConnection().getInputStream(),
bufSize);
fout = new BufferedOutputStream(new FileOutputStream(to), bufSize);
copyPipe(urlin, fout, bufSize);
}
catch (IOException ioex) {
return false;
}
catch (SecurityException sx) {
return false;
}
finally {
if (urlin != null) {
try {
urlin.close();
}
catch (IOException cioex) {
}
}
if (fout != null) {
try {
fout.close();
}
catch (IOException cioex) {
}
}
}
return true;
}
/**
* Reads data from the input and writes it to the output, until the end of the input
* stream.
*
* @param in
* @param out
* @param bufSizeHint
* @throws IOException
*/
public static void copyPipe(InputStream in, OutputStream out, int bufSizeHint)
throws IOException {
int read = -1;
byte[] buf = new byte[bufSizeHint];
while ((read = in.read(buf, 0, bufSizeHint)) >= 0) {
out.write(buf, 0, read);
}
out.flush();
}
}
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