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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.googlecode.jsendnsca.utils;
import java.io.Closeable;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.ServerSocket;
import java.net.Socket;
/**
* Utility IO methods
*
* @author Raj.Patel
* @since 1.1.1
*/
public class IOUtils {
private IOUtils() {
// not to be constructed
}
/**
* Unconditionally close an InputStream.
*
* Equivalent to {@link InputStream#close()}, except any exceptions will be
* ignored. This is typically used in finally blocks.
*
* @param input
* the InputStream to close, may be null or already closed
*/
public static void closeQuietly(InputStream input) {
close(input);
}
/**
* Unconditionally close an OutputStream.
*
* Equivalent to {@link OutputStream#close()}, except any exceptions will be
* ignored. This is typically used in finally blocks.
*
* @param output
* the OutputStream to close, may be null or already closed
*/
public static void closeQuietly(OutputStream output) {
close(output);
}
/**
* Unconditionally close a Socket.
*
* Equivalent to {@link Socket#close()}, except any exceptions will be
* ignored. This is typically used in finally blocks.
*
* @param socket
* the socket to close, may be null or already closed
*/
public static void closeQuietly(Socket socket) {
try {
if (socket != null) {
socket.close();
}
} catch (IOException ignore) {
}
}
public static void closeQuietly(ServerSocket serverSocket) {
try {
if (serverSocket != null) {
serverSocket.close();
}
} catch (IOException ignore) {
}
}
private static void close(Closeable closeable) {
try {
if (closeable != null) {
closeable.close();
}
} catch (IOException ignore) {
}
}
}