Move shutdown component status out into separate classes (elastic#72653)

Originally these were stored in the cluster state using a single class, however, they will need to
be different objects without common parts, and they will be calculated on the fly rather than
persisted into cluster state.

This removes the NodeShutdownComponentStatus class, as its no longer needed.

Relates to elastic#70338

Author: dakrone

server/src/main/java/org/elasticsearch/cluster/metadata/NodeShutdownComponentStatus.java

@@ -0,0 +1,66 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0 and the Server Side Public License, v 1; you may not use this file except
+ * in compliance with, at your election, the Elastic License 2.0 or the Server
+ * Side Public License, v 1.
+ */
+
+package org.elasticsearch.cluster.metadata;
+
+import org.elasticsearch.common.Strings;
+import org.elasticsearch.common.io.stream.StreamInput;
+import org.elasticsearch.common.io.stream.StreamOutput;
+import org.elasticsearch.common.io.stream.Writeable;
+import org.elasticsearch.common.xcontent.ToXContentObject;
+import org.elasticsearch.common.xcontent.XContentBuilder;
+
+import java.io.IOException;
+
+public class ShutdownPersistentTasksStatus implements Writeable, ToXContentObject {
+
+    private final SingleNodeShutdownMetadata.Status status;
+
+    public ShutdownPersistentTasksStatus() {
+        this.status = SingleNodeShutdownMetadata.Status.IN_PROGRESS;
+    }
+
+    public ShutdownPersistentTasksStatus(StreamInput in) throws IOException {
+        this.status = SingleNodeShutdownMetadata.Status.IN_PROGRESS;
+    }
+
+    @Override
+    public XContentBuilder toXContent(XContentBuilder builder, Params params) throws IOException {
+        builder.startObject();
+        builder.field("status", status);
+        builder.endObject();
+        return builder;
+    }
+
+    @Override
+    public void writeTo(StreamOutput out) throws IOException {
+
+    }
+
+    @Override
+    public int hashCode() {
+        return status.hashCode();
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (obj == null) {
+            return false;
+        }
+        if (getClass() != obj.getClass()) {
+            return false;
+        }
+        ShutdownPersistentTasksStatus other = (ShutdownPersistentTasksStatus) obj;
+        return status.equals(other.status);
+    }
+
+    @Override
+    public String toString() {
+        return Strings.toString(this);
+    }
+}

server/src/main/java/org/elasticsearch/cluster/metadata/ShutdownPersistentTasksStatus.java

@@ -0,0 +1,66 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0 and the Server Side Public License, v 1; you may not use this file except
+ * in compliance with, at your election, the Elastic License 2.0 or the Server
+ * Side Public License, v 1.
+ */
+
+package org.elasticsearch.cluster.metadata;
+
+import org.elasticsearch.common.Strings;
+import org.elasticsearch.common.io.stream.StreamInput;
+import org.elasticsearch.common.io.stream.StreamOutput;
+import org.elasticsearch.common.io.stream.Writeable;
+import org.elasticsearch.common.xcontent.ToXContentObject;
+import org.elasticsearch.common.xcontent.XContentBuilder;
+
+import java.io.IOException;
+
+public class ShutdownPluginsStatus implements Writeable, ToXContentObject {
+
+    private final SingleNodeShutdownMetadata.Status status;
+
+    public ShutdownPluginsStatus() {
+        this.status = SingleNodeShutdownMetadata.Status.IN_PROGRESS;
+    }
+
+    public ShutdownPluginsStatus(StreamInput in) throws IOException {
+        this.status = SingleNodeShutdownMetadata.Status.IN_PROGRESS;
+    }
+
+    @Override
+    public XContentBuilder toXContent(XContentBuilder builder, Params params) throws IOException {
+        builder.startObject();
+        builder.field("status", status);
+        builder.endObject();
+        return builder;
+    }
+
+    @Override
+    public void writeTo(StreamOutput out) throws IOException {
+
+    }
+
+    @Override
+    public int hashCode() {
+        return status.hashCode();
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (obj == null) {
+            return false;
+        }
+        if (getClass() != obj.getClass()) {
+            return false;
+        }
+        ShutdownPluginsStatus other = (ShutdownPluginsStatus) obj;
+        return status.equals(other.status);
+    }
+
+    @Override
+    public String toString() {
+        return Strings.toString(this);
+    }
+}

server/src/main/java/org/elasticsearch/cluster/metadata/ShutdownPluginsStatus.java

@@ -0,0 +1,66 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0 and the Server Side Public License, v 1; you may not use this file except
+ * in compliance with, at your election, the Elastic License 2.0 or the Server
+ * Side Public License, v 1.
+ */
+
+package org.elasticsearch.cluster.metadata;
+
+import org.elasticsearch.common.Strings;
+import org.elasticsearch.common.io.stream.StreamInput;
+import org.elasticsearch.common.io.stream.StreamOutput;
+import org.elasticsearch.common.io.stream.Writeable;
+import org.elasticsearch.common.xcontent.ToXContentObject;
+import org.elasticsearch.common.xcontent.XContentBuilder;
+
+import java.io.IOException;
+
+public class ShutdownShardMigrationStatus implements Writeable, ToXContentObject {
+
+    private final SingleNodeShutdownMetadata.Status status;
+
+    public ShutdownShardMigrationStatus() {
+        this.status = SingleNodeShutdownMetadata.Status.IN_PROGRESS;
+    }
+
+    public ShutdownShardMigrationStatus(StreamInput in) throws IOException {
+        this.status = SingleNodeShutdownMetadata.Status.IN_PROGRESS;
+    }
+
+    @Override
+    public XContentBuilder toXContent(XContentBuilder builder, Params params) throws IOException {
+        builder.startObject();
+        builder.field("status", status);
+        builder.endObject();
+        return builder;
+    }
+
+    @Override
+    public void writeTo(StreamOutput out) throws IOException {
+
+    }
+
+    @Override
+    public int hashCode() {
+        return status.hashCode();
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (obj == null) {
+            return false;
+        }
+        if (getClass() != obj.getClass()) {
+            return false;
+        }
+        ShutdownShardMigrationStatus other = (ShutdownShardMigrationStatus) obj;
+        return status.equals(other.status);
+    }
+
+    @Override
+    public String toString() {
+        return Strings.toString(this);
+    }
+}