diff options
Diffstat (limited to 'bkucommon/src/main/java/at/gv/egiz/bku/slcommands/impl/xsect/URIDereferncerAdapter.java')
-rw-r--r-- | bkucommon/src/main/java/at/gv/egiz/bku/slcommands/impl/xsect/URIDereferncerAdapter.java | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/bkucommon/src/main/java/at/gv/egiz/bku/slcommands/impl/xsect/URIDereferncerAdapter.java b/bkucommon/src/main/java/at/gv/egiz/bku/slcommands/impl/xsect/URIDereferncerAdapter.java new file mode 100644 index 00000000..c94937be --- /dev/null +++ b/bkucommon/src/main/java/at/gv/egiz/bku/slcommands/impl/xsect/URIDereferncerAdapter.java @@ -0,0 +1,103 @@ +/* +* Copyright 2008 Federal Chancellery Austria and +* Graz University of Technology +* +* 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 at.gv.egiz.bku.slcommands.impl.xsect;
+
+import iaik.xml.crypto.utils.URIDereferencerImpl;
+
+import java.io.IOException;
+import java.net.URI;
+import java.net.URISyntaxException;
+
+import javax.xml.crypto.Data;
+import javax.xml.crypto.OctetStreamData;
+import javax.xml.crypto.URIDereferencer;
+import javax.xml.crypto.URIReference;
+import javax.xml.crypto.URIReferenceException;
+import javax.xml.crypto.XMLCryptoContext;
+
+import at.gv.egiz.bku.utils.urldereferencer.StreamData;
+import at.gv.egiz.bku.utils.urldereferencer.URLDereferencer;
+import at.gv.egiz.bku.utils.urldereferencer.URLDereferencerContext;
+
+/**
+ * An URIDereferencer implementation that uses an {@link URLDereferencer} to
+ * dereference.
+ *
+ * @author mcentner
+ */
+public class URIDereferncerAdapter implements URIDereferencer {
+
+ /**
+ * The context for dereferencing.
+ */
+ protected URLDereferencerContext urlDereferencerContext;
+
+ /**
+ * Creates a new URIDereferencerAdapter instance with the given
+ * <code>urlDereferencerContext</code>.
+ *
+ * @param urlDereferencerContext the context to be used for dereferencing
+ */
+ public URIDereferncerAdapter(URLDereferencerContext urlDereferencerContext) {
+ super();
+ this.urlDereferencerContext = urlDereferencerContext;
+ }
+
+ /* (non-Javadoc)
+ * @see javax.xml.crypto.URIDereferencer#dereference(javax.xml.crypto.URIReference, javax.xml.crypto.XMLCryptoContext)
+ */
+ @Override
+ public Data dereference(URIReference uriReference, XMLCryptoContext context)
+ throws URIReferenceException {
+
+ String uriString = uriReference.getURI();
+ if (uriString == null) {
+ return null;
+ }
+
+ URI uri;
+ try {
+ uri = new URI(uriString);
+ } catch (URISyntaxException e) {
+ throw new URIReferenceException(e.getMessage(), e);
+ }
+
+ if (uri.isAbsolute()) {
+
+ URLDereferencer dereferencer = URLDereferencer.getInstance();
+ StreamData streamData;
+ try {
+ streamData = dereferencer.dereference(uriString, urlDereferencerContext);
+ } catch (IOException e) {
+ throw new URIReferenceException(e.getMessage(), e);
+ }
+ return new OctetStreamData(streamData.getStream(), uriString, streamData.getContentType());
+
+ } else {
+
+ URIDereferencer uriDereferencer = context.getURIDereferencer();
+ if (uriDereferencer == null || uriDereferencer == this) {
+ uriDereferencer = new URIDereferencerImpl();
+ }
+
+ return uriDereferencer.dereference(uriReference, context);
+
+ }
+
+ }
+
+}
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