Java tutorial
/* * 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.logical; import java.util.Iterator; import com.google.gson.JsonArray; import com.google.gson.JsonElement; 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; import org.opendaylight.vtn.javaapi.resources.logical.VTepGroupResource; import org.opendaylight.vtn.javaapi.resources.logical.VTepGroupsResource; import org.opendaylight.vtn.javaapi.validation.CommonValidator; import org.opendaylight.vtn.javaapi.validation.VtnServiceValidator; /** * The Class VTepGroupResourceValidator validates request Json object for * VtepGroup API. */ public class VTepGroupResourceValidator extends VtnServiceValidator { private static final Logger LOG = Logger.getLogger(VTepGroupResourceValidator.class.getName()); private final AbstractResource resource; private final CommonValidator validator = new CommonValidator(); /** * Instantiates a new v tep group resource validator. * * @param resource * the instance of AbstractResource */ public VTepGroupResourceValidator(final AbstractResource resource) { this.resource = resource; } /** * Validate uri parameters for VTepGroup API. * * @return true, if successful */ @Override public final boolean validateUri() { LOG.trace("Start VTepGroupResourceValidator#validateUri()"); boolean isValid = false; setInvalidParameter(VtnServiceJsonConsts.URI + VtnServiceJsonConsts.VTNNAME); if (resource instanceof VTepGroupsResource && ((VTepGroupsResource) resource).getVtnName() != null && !((VTepGroupsResource) resource).getVtnName().isEmpty()) { isValid = validator.isValidMaxLengthAlphaNum(((VTepGroupsResource) resource).getVtnName(), VtnServiceJsonConsts.LEN_31); setListOpFlag(true); } else if (resource instanceof VTepGroupResource && ((VTepGroupResource) resource).getVtnName() != null && !((VTepGroupResource) resource).getVtnName().isEmpty()) { isValid = validator.isValidMaxLengthAlphaNum(((VTepGroupResource) resource).getVtnName(), VtnServiceJsonConsts.LEN_31); if (isValid) { setInvalidParameter(VtnServiceJsonConsts.URI + VtnServiceJsonConsts.VTEPGROUPNAME); if (((VTepGroupResource) resource).getVtepgroupName() != null && !((VTepGroupResource) resource).getVtepgroupName().isEmpty()) { isValid = validator.isValidMaxLengthAlphaNum(((VTepGroupResource) resource).getVtepgroupName(), VtnServiceJsonConsts.LEN_31); } else { isValid = false; } } setListOpFlag(false); } LOG.trace("Complete VTepGroupResourceValidator#validateUri()"); return isValid; } /** * Validate request Json object for get, put and post method of VTepGroup * API. */ @Override public final void validate(final String method, final JsonObject requestBody) throws VtnServiceException { LOG.trace("Start VTepGroupResourceValidator#validate()"); LOG.info("Validating request for " + method + " of VTepGroupResourceValidator"); boolean isValid = false; try { isValid = validateUri(); if (isValid && requestBody != null && VtnServiceConsts.GET.equals(method)) { isValid = validator.isValidGet(requestBody, isListOpFlag()); setInvalidParameter(validator.getInvalidParameter()); updateOpParameterForList(requestBody); } else if (isValid && requestBody != null && VtnServiceConsts.PUT.equals(method)) { isValid = validatePut(requestBody); } else if (isValid && requestBody != null && VtnServiceConsts.POST.equals(method)) { isValid = validatePost(requestBody); } else if (isValid) { setInvalidParameter(VtnServiceConsts.INCORRECT_METHOD_INVOCATION); isValid = false; } } catch (final NumberFormatException e) { if (method.equals(VtnServiceConsts.GET)) { setInvalidParameter(validator.getInvalidParameter()); } LOG.error(e, "Inside catch:NumberFormatException"); isValid = false; } catch (final ClassCastException e) { if (method.equals(VtnServiceConsts.GET)) { setInvalidParameter(validator.getInvalidParameter()); } LOG.error(e, "Inside catch:ClassCastException"); 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 VTepGroupResourceValidator#validate()"); } /** * validate post request Json object for VTepGroupresource * * @param requestBody * the request Json object * @return true, if successful * @throws VtnServiceException * the vtn service exception */ private boolean validatePost(final JsonObject requestBody) throws VtnServiceException { LOG.trace("Start VTepGroupResourceValidator#validatePost()"); boolean isValid = false; setInvalidParameter(VtnServiceJsonConsts.VTEPGROUP); if (requestBody.has(VtnServiceJsonConsts.VTEPGROUP) && requestBody.get(VtnServiceJsonConsts.VTEPGROUP).isJsonObject()) { final JsonObject vTep = requestBody.getAsJsonObject(VtnServiceJsonConsts.VTEPGROUP); // validation for key: vtepgroup_name(mandatory) setInvalidParameter(VtnServiceJsonConsts.VTEPGROUPNAME); if (vTep.has(VtnServiceJsonConsts.VTEPGROUPNAME) && vTep.getAsJsonPrimitive(VtnServiceJsonConsts.VTEPGROUPNAME).getAsString() != null) { isValid = validator.isValidMaxLengthAlphaNum( vTep.getAsJsonPrimitive(VtnServiceJsonConsts.VTEPGROUPNAME).getAsString(), VtnServiceJsonConsts.LEN_31); } // validation for key: controller_id(mandatory) if (isValid) { setInvalidParameter(VtnServiceJsonConsts.CONTROLLERID); if (vTep.has(VtnServiceJsonConsts.CONTROLLERID) && vTep.getAsJsonPrimitive(VtnServiceJsonConsts.CONTROLLERID).getAsString() != null) { isValid = validator.isValidMaxLengthAlphaNum( vTep.getAsJsonPrimitive(VtnServiceJsonConsts.CONTROLLERID).getAsString(), VtnServiceJsonConsts.LEN_31); } else { isValid = false; } } // validation for key: description (optional) if (isValid) { setInvalidParameter(VtnServiceJsonConsts.DESCRIPTION); if (vTep.has(VtnServiceJsonConsts.DESCRIPTION) && vTep.getAsJsonPrimitive(VtnServiceJsonConsts.DESCRIPTION).getAsString() != null && !vTep.getAsJsonPrimitive(VtnServiceJsonConsts.DESCRIPTION).getAsString().isEmpty()) { isValid = validator.isValidMaxLength( vTep.getAsJsonPrimitive(VtnServiceJsonConsts.DESCRIPTION).getAsString(), VtnServiceJsonConsts.LEN_127); } } if (isValid) { isValid = validatePut(requestBody); } } LOG.trace("Complete VTepGroupResourceValidator#validatePost()"); return isValid; } /** * validate put request Json object for VTepGroup API. * * @param requestBody * the request Json object * @return true, if successful * @throws VtnServiceException * the vtn service exception */ private boolean validatePut(final JsonObject requestBody) throws VtnServiceException { LOG.trace("Start VTepGroupResourceValidator#validatePut()"); boolean isValid = false; setInvalidParameter(VtnServiceJsonConsts.VTEPGROUP); if (requestBody.has(VtnServiceJsonConsts.VTEPGROUP) && requestBody.get(VtnServiceJsonConsts.VTEPGROUP).isJsonObject()) { isValid = true; final JsonObject vTep = requestBody.getAsJsonObject(VtnServiceJsonConsts.VTEPGROUP); setInvalidParameter(VtnServiceJsonConsts.MEMBERVTEPS); if (vTep.has(VtnServiceJsonConsts.MEMBERVTEPS) && vTep.get(VtnServiceJsonConsts.MEMBERVTEPS).isJsonArray()) { final JsonArray memberVtep = vTep.getAsJsonArray(VtnServiceJsonConsts.MEMBERVTEPS); final Iterator<JsonElement> vtep = memberVtep.iterator(); while (vtep.hasNext()) { if (isValid) { setInvalidParameter(VtnServiceJsonConsts.VTEPNAME); final JsonObject vtepName = (JsonObject) vtep.next(); // validation for key: vtep_name(optinal) if (vtepName.has(VtnServiceJsonConsts.VTEPNAME) && vtepName.getAsJsonPrimitive(VtnServiceJsonConsts.VTEPNAME).getAsString() != null && !vtepName.getAsJsonPrimitive(VtnServiceJsonConsts.VTEPNAME).getAsString() .isEmpty()) { isValid = validator.isValidMaxLengthAlphaNum( vtepName.getAsJsonPrimitive(VtnServiceJsonConsts.VTEPNAME).getAsString(), VtnServiceJsonConsts.LEN_31); } } } } } LOG.trace("Complete VTepGroupResourceValidator#validatePut()"); return isValid; } }