/
ClusterBlock.java
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/
ClusterBlock.java
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/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch 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.elasticsearch.cluster.block;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.common.io.stream.Streamable;
import org.elasticsearch.common.xcontent.ToXContent;
import org.elasticsearch.common.xcontent.XContentBuilder;
import org.elasticsearch.rest.RestStatus;
import java.io.IOException;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.EnumSet;
import java.util.Locale;
/**
*
*/
public class ClusterBlock implements Serializable, Streamable, ToXContent {
private int id;
private String description;
private EnumSet<ClusterBlockLevel> levels;
private boolean retryable;
private boolean disableStatePersistence = false;
private RestStatus status;
ClusterBlock() {
}
public ClusterBlock(int id, String description, boolean retryable, boolean disableStatePersistence, RestStatus status, EnumSet<ClusterBlockLevel> levels) {
this.id = id;
this.description = description;
this.retryable = retryable;
this.disableStatePersistence = disableStatePersistence;
this.status = status;
this.levels = levels;
}
public int id() {
return this.id;
}
public String description() {
return this.description;
}
public RestStatus status() {
return this.status;
}
public EnumSet<ClusterBlockLevel> levels() {
return this.levels;
}
public boolean contains(ClusterBlockLevel level) {
for (ClusterBlockLevel testLevel : levels) {
if (testLevel == level) {
return true;
}
}
return false;
}
/**
* Should operations get into retry state if this block is present.
*/
public boolean retryable() {
return this.retryable;
}
/**
* Should global state persistence be disabled when this block is present. Note,
* only relevant for global blocks.
*/
public boolean disableStatePersistence() {
return this.disableStatePersistence;
}
@Override
public XContentBuilder toXContent(XContentBuilder builder, Params params) throws IOException {
builder.startObject(Integer.toString(id));
builder.field("description", description);
builder.field("retryable", retryable);
if (disableStatePersistence) {
builder.field("disable_state_persistence", disableStatePersistence);
}
builder.startArray("levels");
for (ClusterBlockLevel level : levels) {
builder.value(level.name().toLowerCase(Locale.ROOT));
}
builder.endArray();
builder.endObject();
return builder;
}
public static ClusterBlock readClusterBlock(StreamInput in) throws IOException {
ClusterBlock block = new ClusterBlock();
block.readFrom(in);
return block;
}
@Override
public void readFrom(StreamInput in) throws IOException {
id = in.readVInt();
description = in.readString();
final int len = in.readVInt();
ArrayList<ClusterBlockLevel> levels = new ArrayList<>();
for (int i = 0; i < len; i++) {
levels.add(ClusterBlockLevel.fromId(in.readVInt()));
}
this.levels = EnumSet.copyOf(levels);
retryable = in.readBoolean();
disableStatePersistence = in.readBoolean();
status = RestStatus.readFrom(in);
}
@Override
public void writeTo(StreamOutput out) throws IOException {
out.writeVInt(id);
out.writeString(description);
out.writeVInt(levels.size());
for (ClusterBlockLevel level : levels) {
out.writeVInt(level.id());
}
out.writeBoolean(retryable);
out.writeBoolean(disableStatePersistence);
RestStatus.writeTo(out, status);
}
@Override
public String toString() {
StringBuilder sb = new StringBuilder();
sb.append(id).append(",").append(description).append(", blocks ");
for (ClusterBlockLevel level : levels) {
sb.append(level.name()).append(",");
}
return sb.toString();
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
ClusterBlock that = (ClusterBlock) o;
if (id != that.id) return false;
return true;
}
@Override
public int hashCode() {
return id;
}
}