get certificate info from EF.CD

Issue #MOCCA-754 - LIEZertifikat (LIE-Post) Integration 

git-svn-id: https://joinup.ec.europa.eu/svn/mocca/trunk@828 8a26b1a7-26f0-462f-b9ef-d0e30c41f5a4

1 files changed, 80 insertions, 0 deletions

diff --git a/smcc/src/main/java/at/gv/egiz/smcc/util/TLVSequence.java b/smcc/src/main/java/at/gv/egiz/smcc/util/TLVSequence.java
new file mode 100644
index 00000000..2409f212
--- /dev/null
+++ b/smcc/src/main/java/at/gv/egiz/smcc/util/TLVSequence.java
@@ -0,0 +1,80 @@
+/*
+ * Copyright 2009 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.util;
+
+import java.util.Iterator;
+import java.util.NoSuchElementException;
+
+public class TLVSequence implements Iterable<TLV> {
+  
+  private byte[] bytes;
+  
+  public TLVSequence(byte[] bytes) {
+    this.bytes = bytes;
+  }
+
+  @Override
+  public Iterator<TLV> iterator() {
+    return new TLVIterator();
+  }
+  
+  public byte[] getValue(int tag) {
+    for (TLV tlv : this) {
+      if (tlv.getTag() == tag) {
+        return tlv.getValue();
+      }
+    }
+    return null;
+  }
+
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    for (TLV tlv : this) {
+      sb.append(tlv).append('\n');
+    }
+    return sb.toString();
+  }
+
+  private class TLVIterator implements Iterator<TLV> {
+
+    private int pos = 0;
+    
+    @Override
+    public boolean hasNext() {
+      return (bytes.length - pos > 2);
+    }
+
+    @Override
+    public TLV next() {
+      if (hasNext()) {
+        TLV tlv = new TLV(bytes, pos);
+        pos += tlv.getLength() + 2;
+        return tlv;
+      } else {
+        throw new NoSuchElementException();
+      }
+    }
+
+    @Override
+    public void remove() {
+      throw new UnsupportedOperationException();
+    }
+    
+  }
+  
+}