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author | mcentner <mcentner@8a26b1a7-26f0-462f-b9ef-d0e30c41f5a4> | 2010-01-26 16:27:27 +0000 |
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committer | mcentner <mcentner@8a26b1a7-26f0-462f-b9ef-d0e30c41f5a4> | 2010-01-26 16:27:27 +0000 |
commit | 84cd553cc40d9850fcd865887219d907693af0e6 (patch) | |
tree | 2d1d9054f42845ce951c9b2c2239178c803443d3 /smcc/src/main/java/at/gv/egiz/smcc/ExclSignatureCardProxy.java | |
parent | 667af128d0adfeee2aa4748ab58411c91bc4905f (diff) | |
parent | 7a5310b43849124095d97af3103c4fdaeeacbbbb (diff) | |
download | mocca-84cd553cc40d9850fcd865887219d907693af0e6.tar.gz mocca-84cd553cc40d9850fcd865887219d907693af0e6.tar.bz2 mocca-84cd553cc40d9850fcd865887219d907693af0e6.zip |
git-svn-id: https://joinup.ec.europa.eu/svn/mocca/branches/mocca-1.2.11-sha2@602 8a26b1a7-26f0-462f-b9ef-d0e30c41f5a4
Diffstat (limited to 'smcc/src/main/java/at/gv/egiz/smcc/ExclSignatureCardProxy.java')
-rw-r--r-- | smcc/src/main/java/at/gv/egiz/smcc/ExclSignatureCardProxy.java | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/smcc/src/main/java/at/gv/egiz/smcc/ExclSignatureCardProxy.java b/smcc/src/main/java/at/gv/egiz/smcc/ExclSignatureCardProxy.java new file mode 100644 index 00000000..bfbd0063 --- /dev/null +++ b/smcc/src/main/java/at/gv/egiz/smcc/ExclSignatureCardProxy.java @@ -0,0 +1,110 @@ +/* +* 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.smcc; + +import java.lang.reflect.InvocationHandler; +import java.lang.reflect.InvocationTargetException; +import java.lang.reflect.Method; +import java.lang.reflect.Proxy; +import java.util.ArrayList; + +import javax.smartcardio.Card; +import javax.smartcardio.CardException; +import javax.smartcardio.CardTerminal; + +import org.apache.commons.logging.Log; +import org.apache.commons.logging.LogFactory; + +public class ExclSignatureCardProxy implements InvocationHandler { + + private static Log log = LogFactory.getLog(ExclSignatureCardProxy.class); + + private static final Method init; + + static { + try { + init = SignatureCard.class.getMethod("init", new Class<?>[] { Card.class, + CardTerminal.class }); + } catch (SecurityException e) { + throw new RuntimeException(e); + } catch (NoSuchMethodException e) { + throw new RuntimeException(e); + } + } + + private SignatureCard signatureCard; + + public ExclSignatureCardProxy(SignatureCard signatureCard) { + this.signatureCard = signatureCard; + } + + public static SignatureCard newInstance(SignatureCard signatureCard) { + ArrayList<Class<?>> proxyInterfaces = new ArrayList<Class<?>>(); + proxyInterfaces.add(SignatureCard.class); + if (PINMgmtSignatureCard.class.isAssignableFrom(signatureCard.getClass())) { + proxyInterfaces.add(PINMgmtSignatureCard.class); + } + ClassLoader loader = signatureCard.getClass().getClassLoader(); + return (SignatureCard) Proxy.newProxyInstance(loader, proxyInterfaces + .toArray(new Class[proxyInterfaces.size()]), + new ExclSignatureCardProxy(signatureCard)); + } + + public static PINMgmtSignatureCard newInstance(PINMgmtSignatureCard signatureCard) { + return null; + } + + @Override + public Object invoke(Object proxy, Method method, Object[] args) + throws Throwable { + + Card card = null; + + Method target = signatureCard.getClass().getMethod(method.getName(), + method.getParameterTypes()); + + if (target.isAnnotationPresent(Exclusive.class)) { + card = (Card) ((method.equals(init)) + ? args[0] + : signatureCard.getCard()); + } + + if (card != null) { + try { + log.trace("Invoking method " + method.getName() + "() with exclusive access."); + card.beginExclusive(); + } catch (CardException e) { + log.info("Failed to get exclusive access to signature card " + + signatureCard.toString() + "."); + throw new SignatureCardException(e); + } + } + + try { + return method.invoke(signatureCard, args); + } catch (InvocationTargetException e) { + throw e.getTargetException(); + } finally { + if (card != null) { + card.endExclusive(); + } + } + + + } + +} |