com.metaparadigm.jsonrpc.JSONRPCResult.java Source code

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Here is the source code for com.metaparadigm.jsonrpc.JSONRPCResult.java

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/*
 * JSON-RPC-Java - a JSON-RPC to Java Bridge with dynamic invocation
 *
 * $Id: JSONRPCResult.java,v 1.8.2.1 2006/03/06 12:39:21 mclark Exp $
 *
 * Copyright Metaparadigm Pte. Ltd. 2004.
 * Michael Clark <michael@metaparadigm.com>
 *
 * 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 com.metaparadigm.jsonrpc;

import java.io.CharArrayWriter;
import java.io.PrintWriter;
import org.json.JSONObject;

public class JSONRPCResult {

    private Object result = null;
    private Object id = null;
    private int errorCode;

    public final static int CODE_SUCCESS = 0;
    public final static int CODE_REMOTE_EXCEPTION = 490;
    public final static int CODE_ERR_PARSE = 590;
    public final static int CODE_ERR_NOMETHOD = 591;
    public final static int CODE_ERR_UNMARSHALL = 592;
    public final static int CODE_ERR_MARSHALL = 593;

    public final static String MSG_ERR_PARSE = "couldn't parse request arguments";
    public final static String MSG_ERR_NOMETHOD = "method not found (session may have timed out)";

    public JSONRPCResult(int errorCode, Object id, Object o) {
        this.errorCode = errorCode;
        this.id = id;
        this.result = o;
    }

    public Object getResult() {
        return result;
    }

    public Object getId() {
        return id;
    }

    public int getErrorCode() {
        return errorCode;
    }

    @Override
    public String toString() {
        try {
            JSONObject o = new JSONObject();
            if (errorCode == CODE_SUCCESS) {
                o.put("id", id);
                o.put("result", result);
            } else if (errorCode == CODE_REMOTE_EXCEPTION) {
                Throwable e = (Throwable) result;
                CharArrayWriter caw = new CharArrayWriter();
                e.printStackTrace(new PrintWriter(caw));
                JSONObject err = new JSONObject();
                err.put("code", new Integer(errorCode));
                err.put("msg", e.getMessage());
                err.put("trace", caw.toString());
                o.put("id", id);
                o.put("error", err);
            } else {
                JSONObject err = new JSONObject();
                err.put("code", new Integer(errorCode));
                err.put("msg", result);
                o.put("id", id);
                o.put("error", err);
            }
            return o.toString();
        } catch (Exception exc) {
            exc.printStackTrace();
        }
        return null;

    }
}