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

Introduction

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

Source

/**
 * 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.ASN1Encodable;
import org.bouncycastle.asn1.ASN1EncodableVector;
import org.bouncycastle.asn1.ASN1Enumerated;
import org.bouncycastle.asn1.ASN1Primitive;
import org.bouncycastle.asn1.ASN1Sequence;
import org.bouncycastle.asn1.DERSequence;

/**
 * General carrier for service request messages related to a privileged client.
 */
public class CommandMessage extends Message<CommandMessage.Type> {
    public static enum Type implements MessageType {
        ACTIVATE_BOARD, BOARD_DOWNLOAD_LOCK, BOARD_DOWNLOAD_UNLOCK, BOARD_SHUFFLE_LOCK, BOARD_SHUFFLE_UNLOCK, CLEAR_BACKUP_BOARD, DOWNLOAD_BOARD_CONTENTS, DOWNLOAD_SHUFFLE_TRANSCRIPT, DOWNLOAD_SHUFFLE_TRANSCRIPT_STEPS, FETCH_PARTIAL_PUBLIC_KEY, GET_BOARD_HOST, GET_BOARD_DETAILS, MOVE_BOARD_TO_NODE, TRANSFER_TO_BOARD, TRANSFER_TO_BOARD_ENDED, UPLOAD_TO_BOARD, TRANSFER_TO_BACKUP_BOARD, FETCH_BOARD_STATUS, FETCH_BOARD_COMPLETION_STATUS, FETCH_SEED, SUSPEND_BOARD, GENERATE_KEY_PAIR, GENERATE_SEED, STORE_SHARE, PARTIAL_DECRYPT, FILE_UPLOAD, SETUP_PARTIAL_DECRYPT, DOWNLOAD_PARTIAL_DECRYPTS, SIGNATURE_MESSAGE, START_SHUFFLE_AND_MOVE_BOARD_TO_NODE, SHUFFLE_AND_MOVE_BOARD_TO_NODE, RETURN_TO_BOARD, INITIATE_INTRANSIT_BOARD, NODE_INFO_UPDATE, BOARD_CREATE, BACKUP_BOARD_CREATE, NODE_STATISTICS
    }

    /**
     * Base constructor.
     *
     * @param type the service type the message relates to.
     * @param payload the encapsulated message data.
     */
    public CommandMessage(Type type, ASN1Encodable payload) {
        super(type, payload);
    }

    private CommandMessage(ASN1Sequence seq) {
        super(Type.values()[ASN1Enumerated.getInstance(seq.getObjectAt(1)).getValue().intValue()],
                seq.getObjectAt(2));
    }

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

            if (!seq.getObjectAt(0).equals(COMMAND_LEVEL)) {
                throw new IllegalArgumentException("malformed command message");
            }

            return new CommandMessage(seq);
        }

        return null;
    }

    public Type getType() {
        return type;
    }

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

        v.add(COMMAND_LEVEL);
        v.add(new ASN1Enumerated(type.ordinal()));
        v.add(payload);

        return new DERSequence(v);
    }
}