/
MappedOutcome.java
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/
MappedOutcome.java
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/*
* Copyright (c) 2020 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.connectivity.service.messaging.mappingoutcome;
import javax.annotation.Nullable;
import org.eclipse.ditto.connectivity.api.ExternalMessage;
import org.eclipse.ditto.protocol.TopicPath;
// private to MappingOutcome. Do NOT use directly.
final class MappedOutcome<T> implements MappingOutcome<T> {
private final CharSequence mapperId;
private final T mapped;
private final TopicPath topicPath;
@Nullable private final ExternalMessage externalMessage;
MappedOutcome(final CharSequence mapperId, final T mapped, final TopicPath topicPath,
@Nullable final ExternalMessage externalMessage) {
this.mapperId = mapperId;
this.mapped = mapped;
this.topicPath = topicPath;
this.externalMessage = externalMessage;
}
@Override
public <R> R accept(final Visitor<T, R> visitor) {
try {
return visitor.onMapped(mapperId.toString(), mapped);
} catch (final Exception e) {
return visitor.onError(mapperId.toString(), e, topicPath, externalMessage);
}
}
@Override
public String toString() {
return getClass().getSimpleName() +
"[mapperId=" + mapperId +
",mapped=" + mapped +
",topicPath=" + topicPath +
",externalMessage=" + externalMessage +
"]";
}
}