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Business Document Validation Engine (BDVE)
/**
* Copyright (C) 2014-2020 Philip Helger (www.helger.com)
* philip[at]helger[dot]com
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.helger.bdve.json;
import java.util.List;
import java.util.Locale;
import javax.annotation.Nonnegative;
import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import javax.annotation.concurrent.Immutable;
import com.helger.bdve.executorset.IValidationExecutorSet;
import com.helger.bdve.result.ValidationResult;
import com.helger.commons.ValueEnforcer;
import com.helger.commons.annotation.Nonempty;
import com.helger.commons.error.IError;
import com.helger.commons.error.level.EErrorLevel;
import com.helger.commons.error.level.IErrorLevel;
import com.helger.commons.lang.StackTraceHelper;
import com.helger.commons.mutable.MutableInt;
import com.helger.commons.state.ETriState;
import com.helger.json.IJsonArray;
import com.helger.json.IJsonObject;
import com.helger.json.JsonArray;
import com.helger.json.JsonObject;
import com.helger.schematron.svrl.SVRLResourceError;
/**
* A utility class to create a common JSON representation of a BDVE result. Use
* {@link #applyGlobalError(IJsonObject, String, long)} or
* {@link #applyValidationResultList(IJsonObject, IValidationExecutorSet, List, Locale, long, MutableInt, MutableInt)}
* to add the result to an arbitrary {@link IJsonObject}.
*
* @author Philip Helger
* @since 5.2.5
*/
@Immutable
public final class BDVEJsonHelper
{
public static final String JSON_ERRORLEVEL_SUCCESS = "SUCCESS";
public static final String JSON_ERRORLEVEL_WARN = "WARN";
public static final String JSON_ERRORLEVEL_ERROR = "ERROR";
public static final String JSON_TRISTATE_TRUE = "TRUE";
public static final String JSON_TRISTATE_FALSE = "FALSE";
public static final String JSON_TRISTATE_UNDEFINED = "UNDEFINED";
public static final String ARTFACT_TYPE_INPUT_PARAMETER = "input-parameter";
public static final String ARTIFACT_PATH_NONE = "none";
private BDVEJsonHelper ()
{}
private static boolean _isConsideredError (@Nonnull final IErrorLevel aErrorLevel)
{
return aErrorLevel.isGE (EErrorLevel.ERROR);
}
private static boolean _isConsideredWarning (@Nonnull final IErrorLevel aErrorLevel)
{
return aErrorLevel.isGE (EErrorLevel.WARN);
}
/**
* Get the JSON string of the error level. One of "ERROR",
* "WARN" or "SUCCESS".
* See {@link #JSON_ERRORLEVEL_SUCCESS}, {@link #JSON_ERRORLEVEL_WARN},
* {@link #JSON_ERRORLEVEL_ERROR}
*
* @param aErrorLevel
* The error level to convert. May not be null.
* @return A non-null JSON value string.
*/
@Nonnull
@Nonempty
public static String getErrorLevel (@Nonnull final IErrorLevel aErrorLevel)
{
ValueEnforcer.notNull (aErrorLevel, "ErrorLevel");
if (_isConsideredError (aErrorLevel))
return JSON_ERRORLEVEL_ERROR;
if (_isConsideredWarning (aErrorLevel))
return JSON_ERRORLEVEL_WARN;
return JSON_ERRORLEVEL_SUCCESS;
}
@Nullable
public static IErrorLevel getAsErrorLevel (@Nullable final String sErrorLevel)
{
if (JSON_ERRORLEVEL_ERROR.equals (sErrorLevel))
return EErrorLevel.ERROR;
if (JSON_ERRORLEVEL_WARN.equals (sErrorLevel))
return EErrorLevel.WARN;
if (JSON_ERRORLEVEL_SUCCESS.equals (sErrorLevel))
return EErrorLevel.SUCCESS;
return null;
}
/**
* Get the tristate representation of the provided value. Either
* {@link #JSON_TRISTATE_TRUE} or {@link #JSON_TRISTATE_FALSE}.
*
* @param b
* boolean value to get converted.
* @return A non-null JSON value string.
* @see #getTriState(ETriState)
*/
@Nonnull
@Nonempty
public static String getTriState (final boolean b)
{
return b ? JSON_TRISTATE_TRUE : JSON_TRISTATE_FALSE;
}
/**
* Get the tristate representation of the provided value. Either
* {@link #JSON_TRISTATE_TRUE}, {@link #JSON_TRISTATE_FALSE} or
* {@link #JSON_TRISTATE_UNDEFINED}.
*
* @param eTriState
* Tristate value to get converted. May not be null.
* @return A non-null JSON value string.
* @see #getTriState(boolean)
*/
@Nonnull
public static String getTriState (@Nonnull final ETriState eTriState)
{
ValueEnforcer.notNull (eTriState, "TriState");
if (eTriState.isUndefined ())
return JSON_TRISTATE_UNDEFINED;
return getTriState (eTriState.isTrue ());
}
@Nullable
public static ETriState getAsTriState (@Nullable final String sTriState)
{
if (JSON_TRISTATE_TRUE.equals (sTriState))
return ETriState.TRUE;
if (JSON_TRISTATE_FALSE.equals (sTriState))
return ETriState.FALSE;
if (JSON_TRISTATE_UNDEFINED.equals (sTriState))
return ETriState.UNDEFINED;
return null;
}
/**
* Get the JSON representation of a stack trace.
*
*
* {
* "class" : string,
* "message" : string?,
* "stackTrace" : string
* }
*
*
* @param t
* The exception to convert to a JSON object. May be null.
* @return null if the parameter is null, the JSON
* object otherwise.
*/
@Nullable
public static IJsonObject getJsonStackTrace (@Nullable final Throwable t)
{
if (t == null)
return null;
return new JsonObject ().add ("class", t.getClass ().getName ())
.addIfNotNull ("message", t.getMessage ())
.add ("stackTrace", StackTraceHelper.getStackAsString (t));
}
/**
* Get the JSON representation of an error.
*
*
* {
* "errorLevel" : string,
* "errorID" : string?,
* "errorFieldName" : string?,
* "errorLocation" : string?,
* "errorText" : string,
* "exception : object?
* }
*
*
* @param aErrorLevel
* The error level to use. May not be null.
* @param sErrorID
* The ID of the error. May be null.
* @param sErrorFieldName
* The field name of the error. May be null.
* @param sErrorLocation
* The location of the error. May be null.
* @param sErrorText
* The main error text. May not be null.
* @param t
* The optional stack trace of the error. May be null.
* @return The JSON object with the error. Never null.
* @see #getErrorLevel(IErrorLevel)
* @see #getJsonStackTrace(Throwable)
* @see #getJsonError(IError, Locale)
*/
@Nonnull
public static IJsonObject getJsonError (@Nonnull final IErrorLevel aErrorLevel,
@Nullable final String sErrorID,
@Nullable final String sErrorFieldName,
@Nullable final String sErrorLocation,
@Nonnull final String sErrorText,
@Nullable final Throwable t)
{
ValueEnforcer.notNull (aErrorLevel, "ErrorLevel");
ValueEnforcer.notNull (sErrorText, "ErrorText");
return new JsonObject ().add ("errorLevel", getErrorLevel (aErrorLevel))
.addIfNotNull ("errorID", sErrorID)
.addIfNotNull ("errorFieldName", sErrorFieldName)
.addIfNotNull ("errorLocation", sErrorLocation)
.add ("errorText", sErrorText)
.addIfNotNull ("exception", getJsonStackTrace (t));
}
/**
* Get the JSON representation of an error.
*
*
* {
* "errorLevel" : string,
* "errorID" : string?,
* "errorFieldName" : string?,
* "errorLocation" : string?,
* "errorText" : string,
* "exception : object?
* }
*
*
* @param aError
* The structured error. May not be null.
* @param aDisplayLocale
* The display locale to resolve the error text. May not be
* null.
* @return The JSON object with the error. Never null.
* @see #getErrorLevel(IErrorLevel)
* @see #getJsonStackTrace(Throwable)
* @see #getJsonError(IErrorLevel, String, String, String, String, Throwable)
*/
@Nonnull
public static IJsonObject getJsonError (@Nonnull final IError aError, @Nonnull final Locale aDisplayLocale)
{
ValueEnforcer.notNull (aError, "Error");
ValueEnforcer.notNull (aDisplayLocale, "DisplayLocale");
return getJsonError (aError.getErrorLevel (),
aError.getErrorID (),
aError.getErrorFieldName (),
aError.getErrorLocation ().getAsString (),
aError.getErrorText (aDisplayLocale),
aError.getLinkedException ());
}
/**
* Get the JSON representation of a Schematron error.
*
*
* {
* "errorLevel" : string,
* "errorID" : string?,
* "errorFieldName" : string?,
* "errorLocation" : string?,
* "errorText" : string,
* "exception : object?,
* "test" : string?
* }
*
*
* @param aErrorLevel
* The error level to use. May not be null.
* @param sErrorID
* The ID of the error. May be null.
* @param sErrorFieldName
* The field name of the error. May be null.
* @param sErrorLocation
* The location of the error. May be null.
* @param sErrorText
* The main error text. May not be null.
* @param sTest
* The Schematron test that was performed. May be null.
* @param t
* The optional stack trace of the error. May be null.
* @return The JSON object with the error. Never null.
* @see #getErrorLevel(IErrorLevel)
* @see #getJsonStackTrace(Throwable)
* @see #getJsonError(IErrorLevel, String, String, String, String, Throwable)
*/
@Nonnull
public static IJsonObject getJsonSchematronError (@Nonnull final IErrorLevel aErrorLevel,
@Nullable final String sErrorID,
@Nullable final String sErrorFieldName,
@Nullable final String sErrorLocation,
@Nonnull final String sErrorText,
@Nullable final String sTest,
@Nullable final Throwable t)
{
return getJsonError (aErrorLevel, sErrorID, sErrorFieldName, sErrorLocation, sErrorText, t).addIfNotNull ("test",
sTest);
}
/**
* Create the VES details as a JSON Object.
*
*
* {
* "vesid" : string,
* "name" : string,
* "deprecated" : boolean
* }
*
*
* @param aVES
* The VES to use. May not be null.
* @return The created JSON object.
*/
@Nonnull
public static IJsonObject getJsonVES (@Nonnull final IValidationExecutorSet aVES)
{
return new JsonObject ().add ("vesid", aVES.getID ().getAsSingleID ())
.add ("name", aVES.getDisplayName ())
.add ("deprecated", aVES.isDeprecated ());
}
/**
* Add one global error to the response. Afterwards no validation results
* should be added. The layout of the response object is very similar to the
* one created by
* {@link #applyValidationResultList(IJsonObject, IValidationExecutorSet, List, Locale, long, MutableInt, MutableInt)}.
*
*
*
* {
* "success" : boolean,
* "interrupted" : boolean,
* "mostSevereErrorLevel" : string,
* "results" : array {
* "success" : string, // as defined by {@link #getTriState(ETriState)}
* "artifactType" : string,
* "artifactPath" : string,
* "items" : array {
* error structure as in {@link #getJsonError(IErrorLevel, String, String, String, String, Throwable)}
* }
* },
* "durationMS" : number
* }
*
*
* @param aResponse
* The response JSON object to add to. May not be null.
* @param sErrorMsg
* The error message to use. May not be null.
* @param nDurationMilliseconds
* The duration of the validation in milliseconds. Must be ≥ 0.
*/
public static void applyGlobalError (@Nonnull final IJsonObject aResponse,
@Nonnull final String sErrorMsg,
@Nonnegative final long nDurationMilliseconds)
{
ValueEnforcer.notNull (aResponse, "Response");
ValueEnforcer.notNull (sErrorMsg, "ErrorMsg");
ValueEnforcer.isGE0 (nDurationMilliseconds, "DurationMilliseconds");
final IJsonArray aResultArray = new JsonArray ();
{
final IJsonObject aError = getJsonError (EErrorLevel.ERROR,
(String) null,
(String) null,
(String) null,
sErrorMsg,
(Throwable) null);
aResultArray.add (new JsonObject ().add ("success", getTriState (false))
.add ("artifactType", ARTFACT_TYPE_INPUT_PARAMETER)
.add ("artifactPath", ARTIFACT_PATH_NONE)
.add ("items", new JsonArray (aError)));
}
aResponse.add ("success", false);
aResponse.add ("interrupted", false);
aResponse.add ("mostSevereErrorLevel", getErrorLevel (EErrorLevel.ERROR));
aResponse.add ("results", aResultArray);
aResponse.add ("durationMS", nDurationMilliseconds);
}
/**
* Apply the results of a full validation onto a JSON object.The layout of the
* response object is very similar to the one created by
* {@link #applyGlobalError(IJsonObject, String, long)}.
*
*
* {
* "ves" : object as defined by {@link #getJsonVES(IValidationExecutorSet)}
* "success" : boolean,
* "interrupted" : boolean,
* "mostSevereErrorLevel" : string,
* "results" : array {
* "success" : string, // as defined by {@link #getTriState(ETriState)}
* "artifactType" : string,
* "artifactPath" : string,
* "items" : array {
* error structure as in {@link #getJsonSchematronError(IErrorLevel, String, String, String, String, String, Throwable)}
* }
* },
* "durationMS" : number
* }
*
*
* @param aResponse
* The response JSON object to add to. May not be null.
* @param aVES
* The Validation executor set that was used to perform validation. May
* not be null.
* @param aValidationResultList
* The validation result list containing the validation results per
* layer. May not be null.
* @param aDisplayLocale
* The display locale to be used. May not be null.
* @param nDurationMilliseconds
* The duration of the validation in milliseconds. Must be ≥ 0.
* @param aWarningCount
* Optional callback value to store the overall warnings. If not
* null if will contain a ≥ 0 value afterwards.
* @param aErrorCount
* Optional callback value to store the overall errors. If not
* null if will contain a ≥ 0 value afterwards.
*/
public static void applyValidationResultList (@Nonnull final IJsonObject aResponse,
@Nonnull final IValidationExecutorSet aVES,
@Nonnull final List aValidationResultList,
@Nonnull final Locale aDisplayLocale,
@Nonnegative final long nDurationMilliseconds,
@Nullable final MutableInt aWarningCount,
@Nullable final MutableInt aErrorCount)
{
ValueEnforcer.notNull (aResponse, "Response");
ValueEnforcer.notNull (aVES, "VES");
ValueEnforcer.notNull (aValidationResultList, "ValidationResultList");
ValueEnforcer.notNull (aDisplayLocale, "DisplayLocale");
ValueEnforcer.isGE0 (nDurationMilliseconds, "DurationMilliseconds");
aResponse.add ("ves", getJsonVES (aVES));
int nWarnings = 0;
int nErrors = 0;
boolean bValidationInterrupted = false;
IErrorLevel aMostSevere = EErrorLevel.LOWEST;
final IJsonArray aResultArray = new JsonArray ();
for (final ValidationResult aVR : aValidationResultList)
{
final IJsonObject aVRT = new JsonObject ();
if (aVR.isIgnored ())
{
bValidationInterrupted = true;
aVRT.add ("success", getTriState (ETriState.UNDEFINED));
}
else
{
aVRT.add ("success", getTriState (aVR.isSuccess ()));
}
aVRT.add ("artifactType", aVR.getValidationArtefact ().getValidationArtefactType ().getID ());
aVRT.add ("artifactPath", aVR.getValidationArtefact ().getRuleResource ().getPath ());
final IJsonArray aItemArray = new JsonArray ();
for (final IError aError : aVR.getErrorList ())
{
if (aError.getErrorLevel ().isGT (aMostSevere))
aMostSevere = aError.getErrorLevel ();
if (_isConsideredError (aError.getErrorLevel ()))
nErrors++;
else
if (_isConsideredWarning (aError.getErrorLevel ()))
nWarnings++;
aItemArray.add (getJsonSchematronError (aError.getErrorLevel (),
aError.getErrorID (),
aError.getErrorFieldName (),
aError.hasErrorLocation () ? aError.getErrorLocation ().getAsString ()
: null,
aError.getErrorText (aDisplayLocale),
aError instanceof SVRLResourceError ? ((SVRLResourceError) aError).getTest ()
: null,
aError.getLinkedException ()));
}
aVRT.add ("items", aItemArray);
aResultArray.add (aVRT);
}
// Success if the worst that happened is a warning
aResponse.add ("success", aMostSevere.isLE (EErrorLevel.WARN));
aResponse.add ("interrupted", bValidationInterrupted);
aResponse.add ("mostSevereErrorLevel", getErrorLevel (aMostSevere));
aResponse.add ("results", aResultArray);
aResponse.add ("durationMS", nDurationMilliseconds);
// Set consumer values
if (aWarningCount != null)
aWarningCount.set (nWarnings);
if (aErrorCount != null)
aErrorCount.set (nErrors);
}
}
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