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Elasticsearch subproject :server
/*
* 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.ElasticsearchException;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.rest.RestStatus;
import java.io.IOException;
import java.util.Collection;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import java.util.function.Function;
import java.util.stream.Collectors;
import static java.util.Collections.unmodifiableSet;
public class ClusterBlockException extends ElasticsearchException {
private final Set blocks;
public ClusterBlockException(Set globalLevelBlocks) {
super(buildMessageForGlobalBlocks(globalLevelBlocks));
this.blocks = globalLevelBlocks;
}
public ClusterBlockException(Map> indexLevelBlocks) {
super(buildMessageForIndexBlocks(indexLevelBlocks));
this.blocks = indexLevelBlocks.values().stream().flatMap(Collection::stream).collect(Collectors.toSet());
}
public ClusterBlockException(StreamInput in) throws IOException {
super(in);
int totalBlocks = in.readVInt();
Set blocks = new HashSet<>(totalBlocks);
for (int i = 0; i < totalBlocks;i++) {
blocks.add(new ClusterBlock(in));
}
this.blocks = unmodifiableSet(blocks);
}
@Override
public void writeTo(StreamOutput out) throws IOException {
super.writeTo(out);
if (blocks != null) {
out.writeVInt(blocks.size());
for (ClusterBlock block : blocks) {
block.writeTo(out);
}
} else {
out.writeVInt(0);
}
}
public boolean retryable() {
for (ClusterBlock block : blocks) {
if (!block.retryable()) {
return false;
}
}
return true;
}
public Set blocks() {
return blocks;
}
private static String buildMessageForGlobalBlocks(Set globalLevelBlocks) {
assert globalLevelBlocks.isEmpty() == false;
Function blockDescription = block -> block.status() + "/" + block.id() + "/" + block.description();
StringBuilder sb = new StringBuilder();
if (globalLevelBlocks.isEmpty() == false) {
sb.append("blocked by: [");
sb.append(globalLevelBlocks.stream().map(blockDescription).collect(Collectors.joining(", ")));
sb.append("];");
}
return sb.toString();
}
private static String buildMessageForIndexBlocks(Map> indexLevelBlocks) {
assert indexLevelBlocks.isEmpty() == false;
Function blockDescription = block -> block.status() + "/" + block.id() + "/" + block.description();
StringBuilder sb = new StringBuilder();
for (Map.Entry> entry : indexLevelBlocks.entrySet()) {
sb.append("index [" + entry.getKey() + "] blocked by: [");
sb.append(entry.getValue().stream().map(blockDescription).collect(Collectors.joining(", ")));
sb.append("];");
}
return sb.toString();
}
@Override
public RestStatus status() {
RestStatus status = null;
for (ClusterBlock block : blocks) {
if (status == null) {
status = block.status();
} else if (status.getStatus() < block.status().getStatus()) {
status = block.status();
}
}
return status;
}
}