/**
* Copyright (c) 2012, The National Archives <pronom@nationalarchives.gsi.gov.uk>
* All rights reserved.
*
* 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 the The National Archives 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 HOLDER 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 uk.gov.nationalarchives.droid.container;
import java.io.IOException;
import java.io.InputStream;
import uk.gov.nationalarchives.droid.core.IdentificationRequestByteReaderAdapter;
import uk.gov.nationalarchives.droid.core.interfaces.IdentificationRequest;
import uk.gov.nationalarchives.droid.core.interfaces.archive.IdentificationRequestFactory;
import uk.gov.nationalarchives.droid.core.signature.ByteReader;
/**
*
* @author rbrennan
*/
public abstract class AbstractIdentifierEngine implements IdentifierEngine {
private IdentificationRequestFactory requestFactory;
/**
* Returns a ByteReader for the input stream supplied.
* @param in an input stream
* @return a Byte reader
* @throws IOException if the input stream could not be read
*/
protected ByteReader newByteReader(InputStream in) throws IOException {
IdentificationRequest request = getRequestFactory().newRequest(null, null);
request.open(in);
return new IdentificationRequestByteReaderAdapter(request);
}
/**
* @param requestFactory the requestFactory to set
*/
public void setRequestFactory(IdentificationRequestFactory requestFactory) {
this.requestFactory = requestFactory;
}
/**
* @return the requestFactory
*/
protected IdentificationRequestFactory getRequestFactory() {
return requestFactory;
}
}