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/*
 *  Copyright 2016 esbtools Contributors and/or its affiliates.
 *
 *  This file is part of esbtools.
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU 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 General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see .
 */

package org.esbtools.eventhandler.lightblue.client;

import com.redhat.lightblue.client.model.Error;

import java.util.Collection;
import java.util.Collections;
import java.util.stream.Collectors;

/**
 * Accumulates lightblue {@link Error errors} for a given batch of requests to a single exception.
 */
public class LightblueResponseException extends RuntimeException {
    private final Collection errors;

    public LightblueResponseException(Collection errors) {
        super(errors.stream()
                .map(LightblueResponseException::toString)
                .collect(Collectors.toList())
                .toString());

        this.errors = errors;
    }

    public Collection errors() {
        return Collections.unmodifiableCollection(errors);
    }

    /**
     * The things you do when you don't have a toString() to work with...
     */
    private static String toString(Error error) {
        return "{" +
                "code: \"" + error.getErrorCode() + "\", " +
                "context: \"" + error.getContext() + "\", " +
                "message: \"" + error.getMsg() + "\"" +
                "}";
    }
}