/* | |
* Copyright 2008 the original author or authors. | |
* | |
* Licensed 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 org.mockftpserver.core.util; | |
import java.io.ByteArrayOutputStream; | |
import java.io.IOException; | |
import java.io.InputStream; | |
/** | |
* Contains static I/O-related utility methods. | |
* | |
* @author Chris Mair | |
* @version $Revision$ - $Date$ | |
*/ | |
public class IoUtil { | |
/** | |
* Read the contents of the InputStream and return as a byte[]. | |
* | |
* @param input - the InputStream to read | |
* @return the contents of the InputStream as a byte[] | |
* @throws AssertFailedException - if the InputStream is null | |
* @throws java.io.IOException - if an error occurs reading the bytes | |
*/ | |
public static byte[] readBytes(InputStream input) throws IOException { | |
Assert.notNull(input, "input"); | |
ByteArrayOutputStream outBytes = new ByteArrayOutputStream(); | |
try { | |
while (true) { | |
int b = input.read(); | |
if (b == -1) { | |
break; | |
} | |
outBytes.write(b); | |
} | |
} | |
finally { | |
input.close(); | |
} | |
return outBytes.toByteArray(); | |
} | |
/** | |
* Private constructor to prevent instantiation. All members are static. | |
*/ | |
private IoUtil() { | |
} | |
} |