org.apache.pulsar.common.policies.data.EnsemblePlacementPolicyConfig Maven / Gradle / Ivy
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* 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.pulsar.common.policies.data;
import org.apache.pulsar.shade.com.fasterxml.jackson.core.JsonProcessingException;
import org.apache.pulsar.shade.com.fasterxml.jackson.databind.ObjectReader;
import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.util.Collections;
import java.util.Map;
import java.util.Objects;
import org.apache.pulsar.common.util.ObjectMapperFactory;
public class EnsemblePlacementPolicyConfig {
public static final String ENSEMBLE_PLACEMENT_POLICY_CONFIG = "EnsemblePlacementPolicyConfig";
private final Class policyClass;
private final Map properties;
// Add a default constructor for decode data from bytes to construct this.
private EnsemblePlacementPolicyConfig() {
this.policyClass = null;
this.properties = Collections.emptyMap();
}
public EnsemblePlacementPolicyConfig(Class policyClass, Map properties) {
super();
this.policyClass = policyClass;
this.properties = properties;
}
public Class getPolicyClass() {
return policyClass;
}
public Map getProperties() {
return properties;
}
@Override
public int hashCode() {
return Objects.hash(policyClass != null ? policyClass.getName() : "", properties);
}
@Override
public boolean equals(Object obj) {
if (obj instanceof EnsemblePlacementPolicyConfig) {
EnsemblePlacementPolicyConfig other = (EnsemblePlacementPolicyConfig) obj;
return Objects.equals(this.policyClass == null ? null : this.policyClass.getName(),
other.policyClass == null ? null : other.policyClass.getName())
&& Objects.equals(this.properties, other.properties);
}
return false;
}
public byte[] encode() throws ParseEnsemblePlacementPolicyConfigException {
try {
return ObjectMapperFactory.getMapper()
.writer().withDefaultPrettyPrinter()
.writeValueAsString(this)
.getBytes(StandardCharsets.UTF_8);
} catch (JsonProcessingException e) {
throw new ParseEnsemblePlacementPolicyConfigException("Failed to encode to json", e);
}
}
private static final ObjectReader ENSEMBLE_PLACEMENT_CONFIG_READER = ObjectMapperFactory.getMapper()
.reader().forType(EnsemblePlacementPolicyConfig.class);
public static EnsemblePlacementPolicyConfig decode(byte[] data) throws ParseEnsemblePlacementPolicyConfigException {
try {
return ENSEMBLE_PLACEMENT_CONFIG_READER.readValue(data);
} catch (IOException e) {
throw new ParseEnsemblePlacementPolicyConfigException("Failed to decode from json", e);
}
}
public static class ParseEnsemblePlacementPolicyConfigException extends Exception {
ParseEnsemblePlacementPolicyConfigException(String message, Throwable throwable) {
super(message, throwable);
}
}
}