kafka AlterConfigsRequest 源码
kafka AlterConfigsRequest 代码
文件路径:/clients/src/main/java/org/apache/kafka/common/requests/AlterConfigsRequest.java
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 org.apache.kafka.common.requests;
import org.apache.kafka.common.config.ConfigResource;
import org.apache.kafka.common.message.AlterConfigsRequestData;
import org.apache.kafka.common.message.AlterConfigsResponseData;
import org.apache.kafka.common.protocol.ApiKeys;
import org.apache.kafka.common.protocol.ByteBufferAccessor;
import java.nio.ByteBuffer;
import java.util.Collection;
import java.util.Map;
import java.util.Objects;
import java.util.stream.Collectors;
public class AlterConfigsRequest extends AbstractRequest {
public static class Config {
private final Collection<ConfigEntry> entries;
public Config(Collection<ConfigEntry> entries) {
this.entries = Objects.requireNonNull(entries, "entries");
}
public Collection<ConfigEntry> entries() {
return entries;
}
}
public static class ConfigEntry {
private final String name;
private final String value;
public ConfigEntry(String name, String value) {
this.name = Objects.requireNonNull(name, "name");
this.value = Objects.requireNonNull(value, "value");
}
public String name() {
return name;
}
public String value() {
return value;
}
}
public static class Builder extends AbstractRequest.Builder<AlterConfigsRequest> {
private final AlterConfigsRequestData data = new AlterConfigsRequestData();
public Builder(Map<ConfigResource, Config> configs, boolean validateOnly) {
super(ApiKeys.ALTER_CONFIGS);
Objects.requireNonNull(configs, "configs");
for (Map.Entry<ConfigResource, Config> entry : configs.entrySet()) {
AlterConfigsRequestData.AlterConfigsResource resource =
new AlterConfigsRequestData.AlterConfigsResource()
.setResourceName(entry.getKey().name())
.setResourceType(entry.getKey().type().id());
for (ConfigEntry x : entry.getValue().entries) {
resource.configs().add(new AlterConfigsRequestData.AlterableConfig()
.setName(x.name())
.setValue(x.value()));
}
this.data.resources().add(resource);
}
this.data.setValidateOnly(validateOnly);
}
@Override
public AlterConfigsRequest build(short version) {
return new AlterConfigsRequest(data, version);
}
}
private final AlterConfigsRequestData data;
public AlterConfigsRequest(AlterConfigsRequestData data, short version) {
super(ApiKeys.ALTER_CONFIGS, version);
this.data = data;
}
public Map<ConfigResource, Config> configs() {
return data.resources().stream().collect(Collectors.toMap(
resource -> new ConfigResource(
ConfigResource.Type.forId(resource.resourceType()),
resource.resourceName()),
resource -> new Config(resource.configs().stream()
.map(entry -> new ConfigEntry(entry.name(), entry.value()))
.collect(Collectors.toList()))));
}
public boolean validateOnly() {
return data.validateOnly();
}
@Override
public AlterConfigsRequestData data() {
return data;
}
@Override
public AbstractResponse getErrorResponse(int throttleTimeMs, Throwable e) {
ApiError error = ApiError.fromThrowable(e);
AlterConfigsResponseData data = new AlterConfigsResponseData()
.setThrottleTimeMs(throttleTimeMs);
for (AlterConfigsRequestData.AlterConfigsResource resource : this.data.resources()) {
data.responses().add(new AlterConfigsResponseData.AlterConfigsResourceResponse()
.setResourceType(resource.resourceType())
.setResourceName(resource.resourceName())
.setErrorMessage(error.message())
.setErrorCode(error.error().code()));
}
return new AlterConfigsResponse(data);
}
public static AlterConfigsRequest parse(ByteBuffer buffer, short version) {
return new AlterConfigsRequest(new AlterConfigsRequestData(new ByteBufferAccessor(buffer), version), version);
}
}
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