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feat(client): support list queries in Java client (#5682)
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ksqldb-api-client/src/main/java/io/confluent/ksql/api/client/QueryInfo.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,68 @@ | ||
| /* | ||
| * Copyright 2020 Confluent Inc. | ||
| * | ||
| * Licensed under the Confluent Community License (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.confluent.io/confluent-community-license | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT | ||
| * WARRANTIES OF ANY KIND, either express or implied. See the License for the | ||
| * specific language governing permissions and limitations under the License. | ||
| */ | ||
|
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| package io.confluent.ksql.api.client; | ||
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| import java.util.Optional; | ||
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| /** | ||
| * Metadata for a ksqlDB query. | ||
| */ | ||
| public interface QueryInfo { | ||
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| enum QueryType { | ||
| PERSISTENT, | ||
| PUSH | ||
| } | ||
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| /** | ||
| * @return the type of this query | ||
| */ | ||
| QueryType getQueryType(); | ||
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| /** | ||
| * Returns the ID of this query, used for control operations such as terminating the query. | ||
| * | ||
| * @return the ID of this query | ||
| */ | ||
| String getId(); | ||
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| /** | ||
| * Returns the KSQL statement text corresponding to this query. This text may not be exactly the | ||
| * statement submitted in order to start the query, but submitting this statement will result | ||
| * in exactly this query. | ||
| * | ||
| * @return the KSQL statement text | ||
| */ | ||
| String getSql(); | ||
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| /** | ||
| * Returns the name of the sink ksqlDB stream or table that this query writes to, if this query is | ||
| * persistent. If this query is a push query, then the returned optional will be empty. | ||
| * | ||
| * @return the sink ksqlDB stream or table name, if applicable | ||
| */ | ||
| Optional<String> getSink(); | ||
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| /** | ||
| * Returns the name of the Kafka topic that backs the sink ksqlDB stream or table that this query | ||
| * writes to, if this query is persistent. If this query is a push query, then the returned | ||
| * optional will be empty. | ||
| * | ||
| * @return the sink Kafka topic name, if applicable | ||
| */ | ||
| Optional<String> getSinkTopic(); | ||
|
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| } |
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100
ksqldb-api-client/src/main/java/io/confluent/ksql/api/client/impl/QueryInfoImpl.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,100 @@ | ||
| /* | ||
| * Copyright 2020 Confluent Inc. | ||
| * | ||
| * Licensed under the Confluent Community License (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.confluent.io/confluent-community-license | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT | ||
| * WARRANTIES OF ANY KIND, either express or implied. See the License for the | ||
| * specific language governing permissions and limitations under the License. | ||
| */ | ||
|
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| package io.confluent.ksql.api.client.impl; | ||
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| import io.confluent.ksql.api.client.QueryInfo; | ||
| import java.util.Objects; | ||
| import java.util.Optional; | ||
|
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| public class QueryInfoImpl implements QueryInfo { | ||
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| private final QueryType queryType; | ||
| private final String id; | ||
| private final String sql; | ||
| private final Optional<String> sinkName; | ||
| private final Optional<String> sinkTopicName; | ||
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| QueryInfoImpl( | ||
| final QueryType queryType, | ||
| final String id, | ||
| final String sql, | ||
| final Optional<String> sinkName, | ||
| final Optional<String> sinkTopicName | ||
| ) { | ||
| this.queryType = Objects.requireNonNull(queryType); | ||
| this.id = Objects.requireNonNull(id); | ||
| this.sql = Objects.requireNonNull(sql); | ||
| this.sinkName = Objects.requireNonNull(sinkName); | ||
| this.sinkTopicName = Objects.requireNonNull(sinkTopicName); | ||
| } | ||
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| @Override | ||
| public QueryType getQueryType() { | ||
| return queryType; | ||
| } | ||
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| @Override | ||
| public String getId() { | ||
| return id; | ||
| } | ||
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| @Override | ||
| public String getSql() { | ||
| return sql; | ||
| } | ||
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| @Override | ||
| public Optional<String> getSink() { | ||
| return sinkName; | ||
| } | ||
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| @Override | ||
| public Optional<String> getSinkTopic() { | ||
| return sinkTopicName; | ||
| } | ||
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| @Override | ||
| public boolean equals(final Object o) { | ||
| if (this == o) { | ||
| return true; | ||
| } | ||
| if (o == null || getClass() != o.getClass()) { | ||
| return false; | ||
| } | ||
| final QueryInfoImpl queryInfo = (QueryInfoImpl) o; | ||
| return queryType == queryInfo.queryType | ||
| && id.equals(queryInfo.id) | ||
| && sql.equals(queryInfo.sql) | ||
| && sinkName.equals(queryInfo.sinkName) | ||
| && sinkTopicName.equals(queryInfo.sinkTopicName); | ||
| } | ||
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| @Override | ||
| public int hashCode() { | ||
| return Objects.hash(queryType, id, sql, sinkName, sinkTopicName); | ||
| } | ||
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| @Override | ||
| public String toString() { | ||
| return "QueryInfo{" | ||
| + "queryType=" + queryType | ||
| + ", id='" + id + '\'' | ||
| + ", sql='" + sql + '\'' | ||
| + ", sinkName=" + sinkName | ||
| + ", sinkTopicName=" + sinkTopicName | ||
| + '}'; | ||
| } | ||
| } |
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