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/*
* Copyright 1999-2004 The Apache Software Foundation.
*
* 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.apache.xml.security.samples.signature;
import org.apache.xml.security.signature.XMLSignatureInput;
import org.apache.xml.security.utils.resolver.ResourceResolverException;
import org.apache.xml.security.utils.resolver.ResourceResolverSpi;
import org.w3c.dom.Attr;
/**
* This is a sample ResourceResolver who demonstrated how References without
* URI attribuet could be handled.
*
* @author $Author: blautenb $
*/
public class NullURIReferenceResolver extends ResourceResolverSpi {
/** {@link org.apache.commons.logging} logging facility */
static org.apache.commons.logging.Log log =
org.apache.commons.logging.LogFactory.getLog(
NullURIReferenceResolver.class.getName());
/** Field _data[] */
byte _data[] = null;
/** Field _data2[][] */
byte _data2[][] = null;
/** Field _count */
int _count = -1;
/**
* Constructor NullURIReferenceResolver
*
* @param data
*/
public NullURIReferenceResolver(byte[] data) {
_data = data;
_count = -1;
}
/**
* Constructor NullURIReferenceResolver
*
* @param data
*/
public NullURIReferenceResolver(byte[][] data) {
_data2 = data;
_count = 0;
}
/**
* Method engineResolve
*
* @param uri
* @param BaseURI
*
* @throws ResourceResolverException
*/
public XMLSignatureInput engineResolve(Attr uri, String BaseURI)
throws ResourceResolverException {
XMLSignatureInput result = null;
if ((this._data != null) && (this._count == -1)) {
// we always return the same stuff;
result = new XMLSignatureInput(this._data);
result.setSourceURI("memory://null");
result.setMIMEType("text/txt");
} else if ((this._data == null) && (this._count != -1)) {
if (this._count < this._data2.length) {
result = new XMLSignatureInput(this._data2[this._count]);
result.setSourceURI("memory://" + this._count);
this._count++;
result.setMIMEType("text/txt");
} else {
String errMsg = "You did not supply enough data!!! There are only "
+ (this._data2.length) + " byte[] arrays";
Object exArgs[] = { errMsg };
throw new ResourceResolverException("empty", exArgs, uri, BaseURI);
}
} else {
Object exArgs[] = { "You did not supply data !!!" };
throw new ResourceResolverException("empty", exArgs, uri, BaseURI);
}
return result;
}
/**
* Method engineCanResolve
*
* @param uri
* @param BaseURI
*
*/
public boolean engineCanResolve(Attr uri, String BaseURI) {
if (uri == null) {
if ((this._data != null) && (this._count == -1)) {
return true;
} else if ((this._data == null) && (this._count != -1)) {
return true;
}
}
return false;
}
/**
* Method engineGetPropertyKeys
*
*
*/
public String[] engineGetPropertyKeys() {
return null;
}
}
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