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Add DecommissionService and helper to execute awareness attribute dec…
…ommissioning (opensearch-project#4084) * Add Executor to decommission node attribute * Decommission service implementation with cluster metadata * Master abdication changes to decommission local awareness leader * Update join validator changes to validate decommissioned node join request Signed-off-by: Rishab Nahata <rnnahata@amazon.com>
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server/src/main/java/org/opensearch/cluster/decommission/DecommissionAttribute.java
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| /* | ||
| * SPDX-License-Identifier: Apache-2.0 | ||
| * | ||
| * The OpenSearch Contributors require contributions made to | ||
| * this file be licensed under the Apache-2.0 license or a | ||
| * compatible open source license. | ||
| */ | ||
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| package org.opensearch.cluster.decommission; | ||
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| import org.opensearch.common.io.stream.StreamInput; | ||
| import org.opensearch.common.io.stream.StreamOutput; | ||
| import org.opensearch.common.io.stream.Writeable; | ||
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| import java.io.IOException; | ||
| import java.util.Objects; | ||
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| /** | ||
| * {@link DecommissionAttribute} encapsulates information about decommissioned node attribute like attribute name, attribute value. | ||
| * | ||
| * @opensearch.internal | ||
| */ | ||
| public final class DecommissionAttribute implements Writeable { | ||
| private final String attributeName; | ||
| private final String attributeValue; | ||
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| /** | ||
| * Constructs new decommission attribute name value pair | ||
| * | ||
| * @param attributeName attribute name | ||
| * @param attributeValue attribute value | ||
| */ | ||
| public DecommissionAttribute(String attributeName, String attributeValue) { | ||
| this.attributeName = attributeName; | ||
| this.attributeValue = attributeValue; | ||
| } | ||
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| /** | ||
| * Returns attribute name | ||
| * | ||
| * @return attributeName | ||
| */ | ||
| public String attributeName() { | ||
| return this.attributeName; | ||
| } | ||
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| /** | ||
| * Returns attribute value | ||
| * | ||
| * @return attributeValue | ||
| */ | ||
| public String attributeValue() { | ||
| return this.attributeValue; | ||
| } | ||
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| public DecommissionAttribute(StreamInput in) throws IOException { | ||
| attributeName = in.readString(); | ||
| attributeValue = in.readString(); | ||
| } | ||
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| /** | ||
| * Writes decommission attribute name value to stream output | ||
| * | ||
| * @param out stream output | ||
| */ | ||
| @Override | ||
| public void writeTo(StreamOutput out) throws IOException { | ||
| out.writeString(attributeName); | ||
| out.writeString(attributeValue); | ||
| } | ||
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| @Override | ||
| public boolean equals(Object o) { | ||
| if (this == o) return true; | ||
| if (o == null || getClass() != o.getClass()) return false; | ||
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| DecommissionAttribute that = (DecommissionAttribute) o; | ||
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| if (!attributeName.equals(that.attributeName)) return false; | ||
| return attributeValue.equals(that.attributeValue); | ||
| } | ||
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| @Override | ||
| public int hashCode() { | ||
| return Objects.hash(attributeName, attributeValue); | ||
| } | ||
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| @Override | ||
| public String toString() { | ||
| return "DecommissionAttribute{" + "attributeName='" + attributeName + '\'' + ", attributeValue='" + attributeValue + '\'' + '}'; | ||
| } | ||
| } |
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