AbstractObjectBasedResourceEntry.java
/**
* Portions of this software was developed by employees of the National Institute
* of Standards and Technology (NIST), an agency of the Federal Government and is
* being made available as a public service. Pursuant to title 17 United States
* Code Section 105, works of NIST employees are not subject to copyright
* protection in the United States. This software may be subject to foreign
* copyright. Permission in the United States and in foreign countries, to the
* extent that NIST may hold copyright, to use, copy, modify, create derivative
* works, and distribute this software and its documentation without fee is hereby
* granted on a non-exclusive basis, provided that this notice and disclaimer
* of warranty appears in all copies.
*
* THE SOFTWARE IS PROVIDED 'AS IS' WITHOUT ANY WARRANTY OF ANY KIND, EITHER
* EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, ANY WARRANTY
* THAT THE SOFTWARE WILL CONFORM TO SPECIFICATIONS, ANY IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND FREEDOM FROM
* INFRINGEMENT, AND ANY WARRANTY THAT THE DOCUMENTATION WILL CONFORM TO THE
* SOFTWARE, OR ANY WARRANTY THAT THE SOFTWARE WILL BE ERROR FREE. IN NO EVENT
* SHALL NIST BE LIABLE FOR ANY DAMAGES, INCLUDING, BUT NOT LIMITED TO, DIRECT,
* INDIRECT, SPECIAL OR CONSEQUENTIAL DAMAGES, ARISING OUT OF, RESULTING FROM,
* OR IN ANY WAY CONNECTED WITH THIS SOFTWARE, WHETHER OR NOT BASED UPON WARRANTY,
* CONTRACT, TORT, OR OTHERWISE, WHETHER OR NOT INJURY WAS SUSTAINED BY PERSONS OR
* PROPERTY OR OTHERWISE, AND WHETHER OR NOT LOSS WAS SUSTAINED FROM, OR AROSE OUT
* OF THE RESULTS OF, OR USE OF, THE SOFTWARE OR SERVICES PROVIDED HEREUNDER.
*/
package gov.nist.secauto.swid.builder.resource;
import java.io.IOException;
import java.security.NoSuchAlgorithmException;
import java.util.Collections;
import java.util.EnumMap;
import java.util.List;
import java.util.Map;
public abstract class AbstractObjectBasedResourceEntry<ENTRY_TYPE> implements ResourceEntry {
private final Map<HashAlgorithm, List<Byte>> digests;
private final ENTRY_TYPE resource;
public AbstractObjectBasedResourceEntry(ENTRY_TYPE resource) throws NoSuchAlgorithmException, IOException {
this.resource = resource;
this.digests = processDigests(resource);
}
protected abstract EnumMap<HashAlgorithm, List<Byte>> processDigests(ENTRY_TYPE resource)
throws NoSuchAlgorithmException, IOException;
protected ENTRY_TYPE getResource() {
return resource;
}
@Override
public Map<HashAlgorithm, List<Byte>> getDigestValues() {
return Collections.unmodifiableMap(digests);
}
@Override
public List<Byte> getDigestValue(HashAlgorithm key) throws NoSuchAlgorithmException {
List<Byte> retval = digests.get(key);
if (retval == null) {
throw new NoSuchAlgorithmException(key.getName());
}
return retval;
}
}