com.github.stephanarts.cas.ticket.registry.provider.GetMethod.java Source code

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Here is the source code for com.github.stephanarts.cas.ticket.registry.provider.GetMethod.java

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/*
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published
 * by the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package com.github.stephanarts.cas.ticket.registry.provider;

import java.util.HashMap;

import java.io.ByteArrayOutputStream;
import java.io.ObjectOutputStream;

import javax.xml.bind.DatatypeConverter;

import org.json.JSONObject;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import org.jasig.cas.ticket.Ticket;

import com.github.stephanarts.cas.ticket.registry.support.IMethod;
import com.github.stephanarts.cas.ticket.registry.support.JSONRPCException;

/**
 * GetMethod Class.
 */
final class GetMethod implements IMethod {

    /**
     * Logging Class.
     */
    protected final Logger logger = LoggerFactory.getLogger(getClass());

    private HashMap<Integer, Ticket> map;

    /**
     * Constructor.
     *
     * @param map ticket-map.
     */
    public GetMethod(final HashMap<Integer, Ticket> map) {
        this.map = map;
    }

    /**
     * Execute the JSONRPCFunction.
     *
     * @param params    JSONRPC Method Parameters.
     *
     * @return          JSONRPC result object
     *
     * @throws JSONRPCException implementors can throw JSONRPCExceptions containing the error.
     */
    public JSONObject execute(final JSONObject params) throws JSONRPCException {
        JSONObject result = new JSONObject();
        Ticket ticket;

        logger.debug("GET");

        String ticketId = null;

        if (params.length() != 1) {
            throw new JSONRPCException(-32602, "Invalid Params");
        }
        if (!(params.has("ticket-id"))) {
            throw new JSONRPCException(-32602, "Invalid Params");
        }

        ticketId = params.getString("ticket-id");

        ticket = this.map.get(ticketId.hashCode());

        if (ticket == null) {
            throw new JSONRPCException(-32503, "Missing Ticket");
        }

        byte[] serializedTicketArray = { 0 };

        try {
            ByteArrayOutputStream bo = new ByteArrayOutputStream();
            ObjectOutputStream so = new ObjectOutputStream(bo);
            so.writeObject(ticket);
            so.flush();
            serializedTicketArray = bo.toByteArray();
        } catch (final Exception e) {
            logger.debug(e.getMessage());
            throw new JSONRPCException(-32500, "Error extracting Ticket");
        }

        result.put("ticket-id", ticketId);
        result.put("ticket", DatatypeConverter.printBase64Binary(serializedTicketArray));
        return result;
    }
}