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PlaceholderReferenceNotSupportedException.java
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PlaceholderReferenceNotSupportedException.java
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/*
* Copyright (c) 2017 Contributors to the Eclipse Foundation
*
* See the NOTICE file(s) distributed with this work for additional
* information regarding copyright ownership.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License 2.0 which is available at
* http://www.eclipse.org/legal/epl-2.0
*
* SPDX-License-Identifier: EPL-2.0
*/
package org.eclipse.ditto.placeholders;
import static org.eclipse.ditto.base.model.common.ConditionChecker.checkNotNull;
import java.net.URI;
import java.text.MessageFormat;
import java.util.Set;
import java.util.stream.Collectors;
import javax.annotation.Nullable;
import javax.annotation.concurrent.Immutable;
import javax.annotation.concurrent.NotThreadSafe;
import org.eclipse.ditto.base.model.common.HttpStatus;
import org.eclipse.ditto.base.model.exceptions.DittoRuntimeException;
import org.eclipse.ditto.base.model.exceptions.DittoRuntimeExceptionBuilder;
import org.eclipse.ditto.base.model.exceptions.GeneralException;
import org.eclipse.ditto.base.model.headers.DittoHeaders;
import org.eclipse.ditto.base.model.json.JsonParsableException;
import org.eclipse.ditto.json.JsonObject;
/**
* This exception indicates that a request contains a reference placeholder which references an unsupported entity type.
*/
@Immutable
@JsonParsableException(errorCode = PlaceholderReferenceNotSupportedException.ERROR_CODE)
public final class PlaceholderReferenceNotSupportedException extends DittoRuntimeException implements PlaceholderException {
/**
* Error code of this exception.
*/
public static final String ERROR_CODE = ERROR_CODE_PREFIX + "placeholder.reference.notsupported";
private static final String MESSAGE_TEMPLATE = "The placeholder references a not supported entity: ''{0}''.";
private static final String DESCRIPTION_TEMPLATE = "Please reference one of the supported entities: {0}.";
private static final String DESCRIPTION_WITHOUT_SUPPORTED_ENTITIES =
"Please reference one of the supported entities.";
private static final long serialVersionUID = -8724860134957013912L;
private PlaceholderReferenceNotSupportedException(final DittoHeaders dittoHeaders,
@Nullable final String message,
@Nullable final String description, @Nullable final Throwable cause, @Nullable final URI href) {
super(ERROR_CODE, HttpStatus.BAD_REQUEST, dittoHeaders, message, description, cause, href);
}
/**
* A mutable builder for a {@code PlaceholderReferenceNotSupportedException} for an unsupported referenced
* entity type.
*
* @param unsupportedEntityType the unknown placeholder.
* @param supportedEntityTypes the supported placeholders.
* @return the builder.
*/
public static Builder fromUnsupportedEntityType(final CharSequence unsupportedEntityType,
final Set<CharSequence> supportedEntityTypes) {
checkNotNull(unsupportedEntityType, "unsupportedEntityType");
checkNotNull(supportedEntityTypes, "supportedEntityTypes");
final String message = MessageFormat.format(MESSAGE_TEMPLATE, unsupportedEntityType);
final String supportedEntitiesStr = supportedEntityTypes.stream()
.map(supportedEntityType -> "'" + supportedEntityType + "'")
.collect(Collectors.joining(", "));
final String description = MessageFormat.format(DESCRIPTION_TEMPLATE, supportedEntitiesStr);
return new Builder(message, description);
}
/**
* Constructs a new {@code PlaceholderReferenceNotSupportedException} object with the exception message extracted
* from the given JSON object.
*
* @param jsonObject the JSON to read the {@link org.eclipse.ditto.base.model.exceptions.DittoRuntimeException.JsonFields#MESSAGE} field from.
* @param dittoHeaders the headers of the command which resulted in this exception.
* @return the new {@code PlaceholderReferenceNotSupportedException}.
* @throws NullPointerException if any argument is {@code null}.
* @throws org.eclipse.ditto.json.JsonMissingFieldException if this JsonObject did not contain an error message.
* @throws org.eclipse.ditto.json.JsonParseException if the passed in {@code jsonObject} was not in the expected
* format.
*/
public static PlaceholderReferenceNotSupportedException fromJson(final JsonObject jsonObject,
final DittoHeaders dittoHeaders) {
return DittoRuntimeException.fromJson(jsonObject, dittoHeaders, new Builder());
}
@Override
public DittoRuntimeException setDittoHeaders(final DittoHeaders dittoHeaders) {
return new Builder()
.message(getMessage())
.description(getDescription().orElse(null))
.cause(getCause())
.href(getHref().orElse(null))
.dittoHeaders(dittoHeaders)
.build();
}
/**
* A mutable builder with a fluent API for a {@code PlaceholderReferenceNotSupportedException}.
*/
@NotThreadSafe
public static final class Builder
extends DittoRuntimeExceptionBuilder<PlaceholderReferenceNotSupportedException> {
private Builder() {description(DESCRIPTION_WITHOUT_SUPPORTED_ENTITIES);}
private Builder(final String message, final String description) {
this();
message(checkNotNull(message, "message"));
description(checkNotNull(description, "description"));
}
@Override
protected PlaceholderReferenceNotSupportedException doBuild(final DittoHeaders dittoHeaders,
@Nullable final String message, @Nullable final String description, @Nullable final Throwable cause,
@Nullable final URI href) {
return new PlaceholderReferenceNotSupportedException(dittoHeaders, message, description, cause,
href);
}
}
}