/
TopicPath.java
executable file
·76 lines (62 loc) · 2.31 KB
/
TopicPath.java
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/*
* Copyright 2020 Google LLC
*
* 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.google.cloud.pubsublite;
import static com.google.cloud.pubsublite.internal.Preconditions.checkArgument;
import com.google.auto.value.AutoValue;
import io.grpc.StatusException;
import java.io.Serializable;
import java.util.Arrays;
/**
* A string wrapper representing a topic. Should be structured like:
*
* <p>projects/<project number>/locations/<cloud zone>/topics/<id>
*/
@AutoValue
public abstract class TopicPath implements Serializable {
public abstract ProjectIdOrNumber project();
public abstract CloudZone location();
public abstract TopicName name();
public LocationPath locationPath() {
return LocationPath.newBuilder().setProject(project()).setLocation(location()).build();
}
@Override
public String toString() {
return locationPath() + "/topics/" + name();
}
/** Create a new TopicPath builder. */
public static Builder newBuilder() {
return new AutoValue_TopicPath.Builder();
}
public abstract Builder toBuilder();
@AutoValue.Builder
public abstract static class Builder extends ProjectBuilderHelper<Builder> {
public abstract Builder setLocation(CloudZone zone);
public abstract Builder setName(TopicName name);
/** Build a new TopicPath. */
public abstract TopicPath build();
}
public static TopicPath parse(String path) throws StatusException {
String[] splits = path.split("/");
checkArgument(splits.length == 6);
checkArgument(splits[4].equals("topics"));
LocationPath location = LocationPath.parse(String.join("/", Arrays.copyOf(splits, 4)));
return TopicPath.newBuilder()
.setProject(location.project())
.setLocation(location.location())
.setName(TopicName.of(splits[5]))
.build();
}
}