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MessageMapperConfigurationInvalidException.java
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MessageMapperConfigurationInvalidException.java
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/*
* Copyright (c) 2017-2018 Bosch Software Innovations GmbH.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/org/documents/epl-2.0/index.php
*
* SPDX-License-Identifier: EPL-2.0
*/
package org.eclipse.ditto.model.connectivity;
import java.net.URI;
import java.text.MessageFormat;
import javax.annotation.Nullable;
import javax.annotation.concurrent.Immutable;
import javax.annotation.concurrent.NotThreadSafe;
import org.eclipse.ditto.json.JsonObject;
import org.eclipse.ditto.model.base.common.HttpStatusCode;
import org.eclipse.ditto.model.base.exceptions.DittoRuntimeException;
import org.eclipse.ditto.model.base.exceptions.DittoRuntimeExceptionBuilder;
import org.eclipse.ditto.model.base.headers.DittoHeaders;
/**
* Thrown if the the configuration of a Message Mapper was invalid.
*/
@Immutable
public final class MessageMapperConfigurationInvalidException extends DittoRuntimeException implements
ConnectivityException {
/**
* Error code of this exception.
*/
public static final String ERROR_CODE = ERROR_CODE_PREFIX + "message.mapper.config.invalid";
private static final String MESSAGE_TEMPLATE =
"The message mapper was not configured correctly as property ''{0}'' was missing from the mapper's configuration.";
private static final String DEFAULT_DESCRIPTION =
"Make sure to add the missing property to the mapper's configuration.";
private static final long serialVersionUID = -2538489434734124572L;
private MessageMapperConfigurationInvalidException(final DittoHeaders dittoHeaders,
@Nullable final String message,
@Nullable final String description,
@Nullable final Throwable cause,
@Nullable final URI href) {
super(ERROR_CODE, HttpStatusCode.BAD_REQUEST, dittoHeaders, message, description, cause, href);
}
/**
* A mutable builder for a {@code MessageMapperConfigurationInvalidException}.
*
* @param missingConfigurationProperty the missingConfigurationProperty which was not present in the config.
* @return the builder.
*/
public static Builder newBuilder(final String missingConfigurationProperty) {
return new Builder(missingConfigurationProperty);
}
/**
* Constructs a new {@code MessageMapperConfigurationInvalidException} object with given message.
*
* @param message detail message. This message can be later retrieved by the {@link #getMessage()} method.
* @param dittoHeaders the headers of the command which resulted in this exception.
* @return the new MessageMapperConfigurationInvalidException.
*/
public static MessageMapperConfigurationInvalidException fromMessage(final String message, final DittoHeaders dittoHeaders) {
return new Builder()
.dittoHeaders(dittoHeaders)
.message(message)
.build();
}
/**
* Constructs a new {@code MessageMapperConfigurationInvalidException} object with the exception message extracted from the given
* JSON object.
*
* @param jsonObject the JSON to read the {@link JsonFields#MESSAGE} field from.
* @param dittoHeaders the headers of the command which resulted in this exception.
* @return the new MessageMapperConfigurationInvalidException.
* @throws org.eclipse.ditto.json.JsonMissingFieldException if the {@code jsonObject} does not have the {@link
* JsonFields#MESSAGE} field.
*/
public static MessageMapperConfigurationInvalidException fromJson(final JsonObject jsonObject, final DittoHeaders dittoHeaders) {
return new Builder()
.dittoHeaders(dittoHeaders)
.message(readMessage(jsonObject))
.description(readDescription(jsonObject).orElse(DEFAULT_DESCRIPTION))
.href(readHRef(jsonObject).orElse(null))
.build();
}
/**
* A mutable builder with a fluent API for a {@link MessageMapperConfigurationInvalidException}.
*/
@NotThreadSafe
public static final class Builder extends DittoRuntimeExceptionBuilder<MessageMapperConfigurationInvalidException> {
private Builder() {
description(DEFAULT_DESCRIPTION);
}
private Builder(final String missingConfigurationProperty) {
this();
message(MessageFormat.format(MESSAGE_TEMPLATE, missingConfigurationProperty));
}
@Override
protected MessageMapperConfigurationInvalidException doBuild(final DittoHeaders dittoHeaders,
@Nullable final String message,
@Nullable final String description,
@Nullable final Throwable cause,
@Nullable final URI href) {
return new MessageMapperConfigurationInvalidException(dittoHeaders, message, description, cause, href);
}
}
}