org.opendaylight.vtn.javaapi.validation.AutoSaveResourceValidator.java Source code

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Here is the source code for org.opendaylight.vtn.javaapi.validation.AutoSaveResourceValidator.java

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/*
 * Copyright (c) 2012-2014 NEC Corporation
 * All rights reserved.
 * 
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v1.0 which accompanies this
 * distribution, and is available at http://www.eclipse.org/legal/epl-v10.html
 */
package org.opendaylight.vtn.javaapi.validation;

import com.google.gson.JsonObject;
import org.opendaylight.vtn.core.util.Logger;
import org.opendaylight.vtn.javaapi.constants.VtnServiceConsts;
import org.opendaylight.vtn.javaapi.constants.VtnServiceJsonConsts;
import org.opendaylight.vtn.javaapi.exception.VtnServiceException;
import org.opendaylight.vtn.javaapi.ipc.enums.UncJavaAPIErrorCode;
import org.opendaylight.vtn.javaapi.resources.AbstractResource;

/**
 * The Class AutoSaveResourceValidatorvalidates request Json object for
 * Enable/Disable Auto-save Status API and Show Auto-save Status API
 */
public class AutoSaveResourceValidator extends VtnServiceValidator {

    /** The Constant LOG. */
    private static final Logger LOG = Logger.getLogger(AutoSaveResourceValidator.class.getName());

    /** The the instance of AbstractResource. */
    private final AbstractResource resource;

    /**
     * Instantiates a new auto save resource validator.
     * 
     * @param resource
     *            the instance of AbstractResource
     */
    public AutoSaveResourceValidator(final AbstractResource resource) {
        this.resource = resource;
        LOG.info(this.resource.toString());
    }

    /**
     * Validate request json for Enable/Disable Auto-save Status API and Show
     * Auto-save Status API
     */
    @Override
    public final void validate(final String method, final JsonObject requestBody) throws VtnServiceException {
        LOG.trace("AutoSaveResourceValidator#validate()");
        LOG.info("Validating request for " + method + " of AutoSaveResourceValidator");
        boolean isValid = false;
        if (requestBody != null && VtnServiceConsts.PUT.equals(method)) {
            isValid = validatePut(requestBody);
        } else {
            setInvalidParameter(VtnServiceConsts.INCORRECT_METHOD_INVOCATION);
            isValid = false;
        }
        // Throws exception if validation fails
        if (!isValid) {
            LOG.error("Validation failed");
            throw new VtnServiceException(Thread.currentThread().getStackTrace()[1].getMethodName(),
                    UncJavaAPIErrorCode.VALIDATION_ERROR.getErrorCode(),
                    UncJavaAPIErrorCode.VALIDATION_ERROR.getErrorMessage());
        }
        LOG.info("Validation successful");
        LOG.trace("Complete AutoSaveResourceValidator#validate()");
    }

    /**
     * Validate put request json for Enable/Disable Auto-save Status API.
     * 
     * @param requestBody
     *            the request Json object
     * @return true, if successful
     */
    private boolean validatePut(final JsonObject requestBody) {
        LOG.trace("Start AutoSaveResourceValidator#validatePut()");
        boolean isValid = false;
        setInvalidParameter(VtnServiceJsonConsts.AUTOSAVE);
        if (requestBody.has(VtnServiceJsonConsts.AUTOSAVE)
                && requestBody.get(VtnServiceJsonConsts.AUTOSAVE).isJsonObject()) {
            final JsonObject autoSave = requestBody.getAsJsonObject(VtnServiceJsonConsts.AUTOSAVE);
            setInvalidParameter(VtnServiceJsonConsts.AUTOSAVESTATUS);
            if (autoSave.has(VtnServiceJsonConsts.AUTOSAVESTATUS)
                    && autoSave.getAsJsonPrimitive(VtnServiceJsonConsts.AUTOSAVESTATUS).getAsString() != null) {
                // checking whether auto_save_status is enable or disable
                final String status = autoSave.getAsJsonPrimitive(VtnServiceJsonConsts.AUTOSAVESTATUS)
                        .getAsString();
                isValid = status.equalsIgnoreCase(VtnServiceJsonConsts.ENABLE)
                        || status.equalsIgnoreCase(VtnServiceJsonConsts.DISABLE);
            }
        }
        LOG.trace("Complete AutoSaveResourceValidator#validatePut()");
        return isValid;
    }
}