diff options
Diffstat (limited to 'src/main/java/com/lowagie/bc/asn1/ASN1Sequence.java')
| -rw-r--r-- | src/main/java/com/lowagie/bc/asn1/ASN1Sequence.java | 185 |
1 files changed, 0 insertions, 185 deletions
diff --git a/src/main/java/com/lowagie/bc/asn1/ASN1Sequence.java b/src/main/java/com/lowagie/bc/asn1/ASN1Sequence.java deleted file mode 100644 index 167d45f..0000000 --- a/src/main/java/com/lowagie/bc/asn1/ASN1Sequence.java +++ /dev/null @@ -1,185 +0,0 @@ -package com.lowagie.bc.asn1;
-
-import java.io.IOException;
-import java.util.Enumeration;
-import java.util.Vector;
-
-public abstract class ASN1Sequence
- extends DERObject
-{
- private Vector seq = new Vector();
-
- /**
- * return an ASN1Sequence from the given object.
- *
- * @param obj the object we want converted.
- * @exception IllegalArgumentException if the object cannot be converted.
- */
- public static ASN1Sequence getInstance(
- Object obj)
- {
- if (obj == null || obj instanceof ASN1Sequence)
- {
- return (ASN1Sequence)obj;
- }
-
- throw new IllegalArgumentException("unknown object in getInstance");
- }
-
- /**
- * Return an ASN1 sequence from a tagged object. There is a special
- * case here, if an object appears to have been explicitly tagged on
- * reading but we were expecting it to be implictly tagged in the
- * normal course of events it indicates that we lost the surrounding
- * sequence - so we need to add it back (this will happen if the tagged
- * object is a sequence that contains other sequences). If you are
- * dealing with implicitly tagged sequences you really <b>should</b>
- * be using this method.
- *
- * @param obj the tagged object.
- * @param explicit true if the object is meant to be explicitly tagged,
- * false otherwise.
- * @exception IllegalArgumentException if the tagged object cannot
- * be converted.
- */
- public static ASN1Sequence getInstance(
- ASN1TaggedObject obj,
- boolean explicit)
- {
- if (explicit)
- {
- if (!obj.isExplicit())
- {
- throw new IllegalArgumentException("object implicit - explicit expected.");
- }
-
- return (ASN1Sequence)obj.getObject();
- }
- else
- {
- //
- // constructed object which appears to be explicitly tagged
- // when it should be implicit means we have to add the
- // surrounding sequence.
- //
- if (obj.isExplicit())
- {
- if (obj instanceof BERTaggedObject)
- {
- return new BERSequence(obj.getObject());
- }
- else
- {
- return new DERSequence(obj.getObject());
- }
- }
- else
- {
- if (obj.getObject() instanceof ASN1Sequence)
- {
- return (ASN1Sequence)obj.getObject();
- }
- }
- }
-
- throw new IllegalArgumentException(
- "unknown object in getInstanceFromTagged");
- }
-
- public Enumeration getObjects()
- {
- return seq.elements();
- }
-
- /**
- * return the object at the sequence postion indicated by index.
- *
- * @param index the sequence number (starting at zero) of the object
- * @return the object at the sequence postion indicated by index.
- */
- public DEREncodable getObjectAt(
- int index)
- {
- return (DEREncodable)seq.elementAt(index);
- }
-
- /**
- * return the number of objects in this sequence.
- *
- * @return the number of objects in this sequence.
- */
- public int size()
- {
- return seq.size();
- }
-
- public int hashCode()
- {
- Enumeration e = this.getObjects();
- int hashCode = 0;
-
- while (e.hasMoreElements())
- {
- Object o = e.nextElement();
-
- if (o != null)
- {
- hashCode ^= o.hashCode();
- }
- }
-
- return hashCode;
- }
-
- public boolean equals(
- Object o)
- {
- if (o == null || !(o instanceof ASN1Sequence))
- {
- return false;
- }
-
- ASN1Sequence other = (ASN1Sequence)o;
-
- if (this.size() != other.size())
- {
- return false;
- }
-
- Enumeration s1 = this.getObjects();
- Enumeration s2 = other.getObjects();
-
- while (s1.hasMoreElements())
- {
- Object o1 = s1.nextElement();
- Object o2 = s2.nextElement();
-
- if (o1 != null && o2 != null)
- {
- if (!o1.equals(o2))
- {
- return false;
- }
- }
- else if (o1 == null && o2 == null)
- {
- continue;
- }
- else
- {
- return false;
- }
- }
-
- return true;
- }
-
- protected void addObject(
- DEREncodable obj)
- {
- seq.addElement(obj);
- }
-
- abstract void encode(DEROutputStream out)
- throws IOException;
-}
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