org.cryptoworkshop.ximix.common.asn1.message.TranscriptQueryResponse.java Source code

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Here is the source code for org.cryptoworkshop.ximix.common.asn1.message.TranscriptQueryResponse.java

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/**
 * Copyright 2013 Crypto Workshop Pty Ltd
 *
 * 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 org.cryptoworkshop.ximix.common.asn1.message;

import org.bouncycastle.asn1.ASN1EncodableVector;
import org.bouncycastle.asn1.ASN1Integer;
import org.bouncycastle.asn1.ASN1Object;
import org.bouncycastle.asn1.ASN1Primitive;
import org.bouncycastle.asn1.ASN1Sequence;
import org.bouncycastle.asn1.DERSequence;
import org.bouncycastle.asn1.DERUTF8String;

/**
 * Response message for a transcript query.
 */
public class TranscriptQueryResponse extends ASN1Object {
    private final long queryID;
    private final String boardName;
    private final int[] stepNos;

    /**
     * Base constructor.
     *
     * @param queryID  a Ximix assigned ID for this transcript query.
     * @param boardName the name of the board the operation of interest was associated with.
     * @param stepNos  the step numbers making up the operation of interest.
     */
    public TranscriptQueryResponse(long queryID, String boardName, int[] stepNos) {
        this.queryID = queryID;
        this.boardName = boardName;
        this.stepNos = stepNos;
    }

    private TranscriptQueryResponse(ASN1Sequence seq) {
        this.queryID = ASN1Integer.getInstance(seq.getObjectAt(0)).getValue().longValue();
        this.boardName = DERUTF8String.getInstance(seq.getObjectAt(1)).getString();

        ASN1Sequence steps = ASN1Sequence.getInstance(seq.getObjectAt(2));

        stepNos = new int[steps.size()];

        for (int i = 0; i != stepNos.length; i++) {
            stepNos[i] = ASN1Integer.getInstance(steps.getObjectAt(i)).getValue().intValue();
        }
    }

    public static final TranscriptQueryResponse getInstance(Object o) {
        if (o instanceof TranscriptQueryResponse) {
            return (TranscriptQueryResponse) o;
        } else if (o != null) {
            return new TranscriptQueryResponse(ASN1Sequence.getInstance(o));
        }

        return null;
    }

    @Override
    public ASN1Primitive toASN1Primitive() {
        ASN1EncodableVector v = new ASN1EncodableVector();

        v.add(new ASN1Integer(queryID));
        v.add(new DERUTF8String(boardName));

        ASN1EncodableVector stepV = new ASN1EncodableVector();
        for (int i = 0; i != stepNos.length; i++) {
            stepV.add(new ASN1Integer(stepNos[i]));
        }

        v.add(new DERSequence(stepV));

        return new DERSequence(v);
    }

    public long getQueryID() {
        return queryID;
    }

    public int[] stepNos() {
        return stepNos.clone();
    }

    public String getBoardName() {
        return boardName;
    }
}