org.energy_home.jemma.internal.ah.m2m.device.M2MUtils.java Source code

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Here is the source code for org.energy_home.jemma.internal.ah.m2m.device.M2MUtils.java

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/**
 * This file is part of JEMMA - http://jemma.energy-home.org
 * (C) Copyright 2013 Telecom Italia (http://www.telecomitalia.it)
 *
 * JEMMA is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License (LGPL) version 3
 * or later as published by the Free Software Foundation, which accompanies
 * this distribution and is available at http://www.gnu.org/licenses/lgpl.html
 *
 * JEMMA 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 (LGPL) for more details.
 *
 */
package org.energy_home.jemma.internal.ah.m2m.device;

import java.lang.reflect.Field;

import org.apache.commons.logging.Log;
import org.apache.http.HttpResponse;
import org.energy_home.jemma.ah.m2m.device.M2MServiceException;
import org.energy_home.jemma.utils.rest.RestClient;

class M2MUtils {
    static void mapDeviceException(Log log, Exception e, String msg) throws M2MServiceException {
        log.error("M2MServiceException: " + msg + " - " + e.getClass().getName());
        if (log.isDebugEnabled())
            log.error("", e);
        if (e instanceof M2MServiceException)
            throw (M2MServiceException) e;
        else
            throw new M2MServiceException(msg);
    }

    static void checkHttpResponseStatus(HttpResponse response) throws M2MHttpStatusException {
        if (RestClient.isUnauthorized(response))
            throw new M2MUnauthorizedException(
                    "Unauthorized exception in http response, status " + RestClient.getResponseStatus(response));
        else if (!RestClient.isOkOrCreatedStatus(response)) {
            throw new M2MHttpStatusException(
                    "Exception in http response, status " + RestClient.getResponseStatus(response));
        }
    }

    static String getAhConstant(String name) {
        try {
            Class ahConstantsClass = Class.forName("org.energy_home.jemma.ah.AHConstants");
            Field field = ahConstantsClass.getField(name);
            return (String) field.get(null);
        } catch (Exception e) {
            return null;
        }
    }

}