org.ocelotds.messaging.MessageToClient.java Source code

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Here is the source code for org.ocelotds.messaging.MessageToClient.java

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/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. 
 */
package org.ocelotds.messaging;

import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.ocelotds.Constants;
import java.util.Objects;

/**
 * Message to Client, for response after message from client. Server send this response asynchronous
 *
 * @author hhfrancois
 */
public class MessageToClient {

    private static final long serialVersionUID = -834697863344344854L;
    /**
     * Type of message
     */
    protected MessageType type = null;

    /**
     * Id of request, compute from hash of packageName, classname, methodName, arguments
     */
    protected String id;
    /**
     * The result of request
     */
    protected Object response = null;

    /**
     * The result of request in json format
     */
    protected String json = null;

    /**
     * execution time
     */
    protected long time = 0L;

    /**
     * validity limit
     */
    protected long deadline = 0L;

    public String getJson() {
        return json;
    }

    public void setJson(String json) {
        this.json = json;
    }

    public MessageType getType() {
        return type;
    }

    public void setType(MessageType type) {
        this.type = type;
    }

    public String getId() {
        return id;
    }

    public void setId(String id) {
        this.id = id;
    }

    public Object getResponse() {
        return response;
    }

    private void setResponse(Object response, MessageType type) {
        this.type = type;
        this.response = response;
    }

    public void setConstraints(ConstraintViolation[] response) {
        setResponse(response, MessageType.CONSTRAINT);
    }

    public void setResult(Object response) {
        setResponse(response, MessageType.RESULT);
    }

    public void setFault(Object response) {
        setResponse(response, MessageType.FAULT);
    }

    public void setResponse(Object response) {
        this.response = response;
    }

    public long getDeadline() {
        return deadline;
    }

    public void setDeadline(long deadline) {
        this.deadline = deadline;
    }

    public long getTime() {
        return time;
    }

    public void setTime(long time) {
        this.time = time;
    }

    @Override
    public int hashCode() {
        int hash = 7;
        hash = 83 * hash + Objects.hashCode(this.id);
        return hash;
    }

    @Override
    public boolean equals(Object obj) {
        if (obj == null) {
            return false;
        }
        if (getClass() != obj.getClass()) {
            return false;
        }
        final MessageToClient other = (MessageToClient) obj;
        return Objects.equals(this.id, other.id);
    }

    public String toJson() {
        ObjectMapper mapper = getObjectMapper();
        String jsonResponse = this.json;
        try {
            if (null == jsonResponse) {
                if (MessageType.FAULT.equals(this.getType())) {
                    jsonResponse = ((Fault) this.getResponse()).toJson();
                } else {
                    jsonResponse = mapper.writeValueAsString(this.getResponse());
                }
            }
        } catch (JsonProcessingException ex) {
            jsonResponse = new Fault(ex, 0).toJson();
        }
        return String.format("{\"%s\":\"%s\",\"%s\":\"%s\",\"%s\":%s,\"%s\":%s,\"%s\":%s}", Constants.Message.TYPE,
                this.getType(), Constants.Message.ID, this.getId(), Constants.Message.TIME, this.getTime(),
                Constants.Message.DEADLINE, this.getDeadline(), Constants.Message.RESPONSE, jsonResponse);
    }

    ObjectMapper getObjectMapper() {
        return new ObjectMapper();
    }

    @Override
    public String toString() {
        return toJson();
    }
}