| /* GENERATED SOURCE. DO NOT MODIFY. */ |
| package com.android.internal.org.bouncycastle.asn1; |
| |
| import java.io.IOException; |
| |
| /** |
| * The DLSequence encodes a SEQUENCE using definite length form. |
| * @hide This class is not part of the Android public SDK API |
| */ |
| public class DLSequence |
| extends ASN1Sequence |
| { |
| private int bodyLength = -1; |
| |
| /** |
| * Create an empty sequence |
| */ |
| public DLSequence() |
| { |
| } |
| |
| /** |
| * create a sequence containing one object |
| * @param element the object to go in the sequence. |
| */ |
| public DLSequence(ASN1Encodable element) |
| { |
| super(element); |
| } |
| |
| /** |
| * create a sequence containing a vector of objects. |
| * @param elementVector the vector of objects to make up the sequence. |
| */ |
| public DLSequence(ASN1EncodableVector elementVector) |
| { |
| super(elementVector); |
| } |
| |
| /** |
| * create a sequence containing an array of objects. |
| * @param elements the array of objects to make up the sequence. |
| */ |
| public DLSequence(ASN1Encodable[] elements) |
| { |
| super(elements); |
| } |
| |
| DLSequence(ASN1Encodable[] elements, boolean clone) |
| { |
| super(elements, clone); |
| } |
| |
| private int getBodyLength() throws IOException |
| { |
| if (bodyLength < 0) |
| { |
| int count = elements.length; |
| int totalLength = 0; |
| |
| for (int i = 0; i < count; ++i) |
| { |
| ASN1Primitive dlObject = elements[i].toASN1Primitive().toDLObject(); |
| totalLength += dlObject.encodedLength(); |
| } |
| |
| this.bodyLength = totalLength; |
| } |
| |
| return bodyLength; |
| } |
| |
| int encodedLength() throws IOException |
| { |
| int length = getBodyLength(); |
| |
| return 1 + StreamUtil.calculateBodyLength(length) + length; |
| } |
| |
| /** |
| * A note on the implementation: |
| * <p> |
| * As DL requires the constructed, definite-length model to |
| * be used for structured types, this varies slightly from the |
| * ASN.1 descriptions given. Rather than just outputting SEQUENCE, |
| * we also have to specify CONSTRUCTED, and the objects length. |
| */ |
| void encode(ASN1OutputStream out, boolean withTag) throws IOException |
| { |
| if (withTag) |
| { |
| out.write(BERTags.SEQUENCE | BERTags.CONSTRUCTED); |
| } |
| |
| ASN1OutputStream dlOut = out.getDLSubStream(); |
| |
| int count = elements.length; |
| if (bodyLength >= 0 || count > 16) |
| { |
| out.writeLength(getBodyLength()); |
| |
| for (int i = 0; i < count; ++i) |
| { |
| dlOut.writePrimitive(elements[i].toASN1Primitive(), true); |
| } |
| } |
| else |
| { |
| int totalLength = 0; |
| |
| ASN1Primitive[] dlObjects = new ASN1Primitive[count]; |
| for (int i = 0; i < count; ++i) |
| { |
| ASN1Primitive dlObject = elements[i].toASN1Primitive().toDLObject(); |
| dlObjects[i] = dlObject; |
| totalLength += dlObject.encodedLength(); |
| } |
| |
| this.bodyLength = totalLength; |
| out.writeLength(totalLength); |
| |
| for (int i = 0; i < count; ++i) |
| { |
| dlOut.writePrimitive(dlObjects[i], true); |
| } |
| } |
| } |
| |
| ASN1Primitive toDLObject() |
| { |
| return this; |
| } |
| } |