org.elasticsearch.cluster.metadata.IndexMetaData Maven / Gradle / Ivy
/*
* 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.metadata;
import com.carrotsearch.hppc.cursors.ObjectCursor;
import com.carrotsearch.hppc.cursors.ObjectObjectCursor;
import org.elasticsearch.ElasticsearchException;
import org.elasticsearch.Version;
import org.elasticsearch.cluster.Diff;
import org.elasticsearch.cluster.Diffable;
import org.elasticsearch.cluster.DiffableUtils;
import org.elasticsearch.cluster.block.ClusterBlock;
import org.elasticsearch.cluster.block.ClusterBlockLevel;
import org.elasticsearch.cluster.node.DiscoveryNodeFilters;
import org.elasticsearch.cluster.routing.HashFunction;
import org.elasticsearch.cluster.routing.Murmur3HashFunction;
import org.elasticsearch.common.Nullable;
import org.elasticsearch.common.ParseFieldMatcher;
import org.elasticsearch.common.collect.ImmutableOpenMap;
import org.elasticsearch.common.collect.MapBuilder;
import org.elasticsearch.common.compress.CompressedXContent;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.settings.loader.SettingsLoader;
import org.elasticsearch.common.xcontent.*;
import org.elasticsearch.index.mapper.MapperService;
import org.elasticsearch.rest.RestStatus;
import org.elasticsearch.search.warmer.IndexWarmersMetaData;
import org.joda.time.DateTime;
import org.joda.time.DateTimeZone;
import java.io.IOException;
import java.text.ParseException;
import java.util.EnumSet;
import java.util.HashMap;
import java.util.Locale;
import java.util.Map;
import static org.elasticsearch.cluster.node.DiscoveryNodeFilters.OpType.AND;
import static org.elasticsearch.cluster.node.DiscoveryNodeFilters.OpType.OR;
import static org.elasticsearch.common.settings.Settings.*;
/**
*
*/
public class IndexMetaData implements Diffable, FromXContentBuilder, ToXContent {
public static final IndexMetaData PROTO = IndexMetaData.builder("")
.settings(Settings.builder().put(IndexMetaData.SETTING_VERSION_CREATED, Version.CURRENT))
.numberOfShards(1).numberOfReplicas(0).build();
public interface Custom extends Diffable, ToXContent {
String type();
Custom fromMap(Map map) throws IOException;
Custom fromXContent(XContentParser parser) throws IOException;
/**
* Merges from this to another, with this being more important, i.e., if something exists in this and another,
* this will prevail.
*/
Custom mergeWith(Custom another);
}
public static Map customPrototypes = new HashMap<>();
static {
// register non plugin custom metadata
registerPrototype(IndexWarmersMetaData.TYPE, IndexWarmersMetaData.PROTO);
}
/**
* Register a custom index meta data factory. Make sure to call it from a static block.
*/
public static void registerPrototype(String type, Custom proto) {
customPrototypes.put(type, proto);
}
@Nullable
public static T lookupPrototype(String type) {
//noinspection unchecked
return (T) customPrototypes.get(type);
}
public static T lookupPrototypeSafe(String type) {
//noinspection unchecked
T proto = (T) customPrototypes.get(type);
if (proto == null) {
throw new IllegalArgumentException("No custom metadata prototype registered for type [" + type + "]");
}
return proto;
}
public static final ClusterBlock INDEX_READ_ONLY_BLOCK = new ClusterBlock(5, "index read-only (api)", false, false, RestStatus.FORBIDDEN, EnumSet.of(ClusterBlockLevel.WRITE, ClusterBlockLevel.METADATA_WRITE));
public static final ClusterBlock INDEX_READ_BLOCK = new ClusterBlock(7, "index read (api)", false, false, RestStatus.FORBIDDEN, EnumSet.of(ClusterBlockLevel.READ));
public static final ClusterBlock INDEX_WRITE_BLOCK = new ClusterBlock(8, "index write (api)", false, false, RestStatus.FORBIDDEN, EnumSet.of(ClusterBlockLevel.WRITE));
public static final ClusterBlock INDEX_METADATA_BLOCK = new ClusterBlock(9, "index metadata (api)", false, false, RestStatus.FORBIDDEN, EnumSet.of(ClusterBlockLevel.METADATA_WRITE, ClusterBlockLevel.METADATA_READ));
public static enum State {
OPEN((byte) 0),
CLOSE((byte) 1);
private final byte id;
State(byte id) {
this.id = id;
}
public byte id() {
return this.id;
}
public static State fromId(byte id) {
if (id == 0) {
return OPEN;
} else if (id == 1) {
return CLOSE;
}
throw new IllegalStateException("No state match for id [" + id + "]");
}
public static State fromString(String state) {
if ("open".equals(state)) {
return OPEN;
} else if ("close".equals(state)) {
return CLOSE;
}
throw new IllegalStateException("No state match for [" + state + "]");
}
}
public static final String INDEX_SETTING_PREFIX = "index.";
public static final String SETTING_NUMBER_OF_SHARDS = "index.number_of_shards";
public static final String SETTING_NUMBER_OF_REPLICAS = "index.number_of_replicas";
public static final String SETTING_SHADOW_REPLICAS = "index.shadow_replicas";
public static final String SETTING_SHARED_FILESYSTEM = "index.shared_filesystem";
public static final String SETTING_AUTO_EXPAND_REPLICAS = "index.auto_expand_replicas";
public static final String SETTING_READ_ONLY = "index.blocks.read_only";
public static final String SETTING_BLOCKS_READ = "index.blocks.read";
public static final String SETTING_BLOCKS_WRITE = "index.blocks.write";
public static final String SETTING_BLOCKS_METADATA = "index.blocks.metadata";
public static final String SETTING_VERSION_CREATED = "index.version.created";
public static final String SETTING_VERSION_CREATED_STRING = "index.version.created_string";
public static final String SETTING_VERSION_UPGRADED = "index.version.upgraded";
public static final String SETTING_VERSION_UPGRADED_STRING = "index.version.upgraded_string";
public static final String SETTING_VERSION_MINIMUM_COMPATIBLE = "index.version.minimum_compatible";
public static final String SETTING_CREATION_DATE = "index.creation_date";
public static final String SETTING_PRIORITY = "index.priority";
public static final String SETTING_CREATION_DATE_STRING = "index.creation_date_string";
public static final String SETTING_INDEX_UUID = "index.uuid";
public static final String SETTING_LEGACY_ROUTING_HASH_FUNCTION = "index.legacy.routing.hash.type";
public static final String SETTING_LEGACY_ROUTING_USE_TYPE = "index.legacy.routing.use_type";
public static final String SETTING_DATA_PATH = "index.data_path";
public static final String SETTING_SHARED_FS_ALLOW_RECOVERY_ON_ANY_NODE = "index.shared_filesystem.recover_on_any_node";
public static final String INDEX_UUID_NA_VALUE = "_na_";
// hard-coded hash function as of 2.0
// older indices will read which hash function to use in their index settings
private static final HashFunction MURMUR3_HASH_FUNCTION = new Murmur3HashFunction();
private final String index;
private final long version;
private final State state;
private final ImmutableOpenMap aliases;
private final Settings settings;
private final ImmutableOpenMap mappings;
private final ImmutableOpenMap customs;
private final int numberOfShards;
private final int numberOfReplicas;
private transient final int totalNumberOfShards;
private final DiscoveryNodeFilters requireFilters;
private final DiscoveryNodeFilters includeFilters;
private final DiscoveryNodeFilters excludeFilters;
private final Version indexCreatedVersion;
private final Version indexUpgradedVersion;
private final org.apache.lucene.util.Version minimumCompatibleLuceneVersion;
private final HashFunction routingHashFunction;
private final boolean useTypeForRouting;
private IndexMetaData(String index, long version, State state, Settings settings, ImmutableOpenMap mappings, ImmutableOpenMap aliases, ImmutableOpenMap customs) {
Integer maybeNumberOfShards = settings.getAsInt(SETTING_NUMBER_OF_SHARDS, null);
if (maybeNumberOfShards == null) {
throw new IllegalArgumentException("must specify numberOfShards for index [" + index + "]");
}
int numberOfShards = maybeNumberOfShards;
if (numberOfShards <= 0) {
throw new IllegalArgumentException("must specify positive number of shards for index [" + index + "]");
}
Integer maybeNumberOfReplicas = settings.getAsInt(SETTING_NUMBER_OF_REPLICAS, null);
if (maybeNumberOfReplicas == null) {
throw new IllegalArgumentException("must specify numberOfReplicas for index [" + index + "]");
}
int numberOfReplicas = maybeNumberOfReplicas;
if (numberOfReplicas < 0) {
throw new IllegalArgumentException("must specify non-negative number of shards for index [" + index + "]");
}
this.index = index;
this.version = version;
this.state = state;
this.settings = settings;
this.mappings = mappings;
this.customs = customs;
this.numberOfShards = numberOfShards;
this.numberOfReplicas = numberOfReplicas;
this.totalNumberOfShards = numberOfShards * (numberOfReplicas + 1);
this.aliases = aliases;
Map requireMap = settings.getByPrefix("index.routing.allocation.require.").getAsMap();
if (requireMap.isEmpty()) {
requireFilters = null;
} else {
requireFilters = DiscoveryNodeFilters.buildFromKeyValue(AND, requireMap);
}
Map includeMap = settings.getByPrefix("index.routing.allocation.include.").getAsMap();
if (includeMap.isEmpty()) {
includeFilters = null;
} else {
includeFilters = DiscoveryNodeFilters.buildFromKeyValue(OR, includeMap);
}
Map excludeMap = settings.getByPrefix("index.routing.allocation.exclude.").getAsMap();
if (excludeMap.isEmpty()) {
excludeFilters = null;
} else {
excludeFilters = DiscoveryNodeFilters.buildFromKeyValue(OR, excludeMap);
}
indexCreatedVersion = Version.indexCreated(settings);
indexUpgradedVersion = settings.getAsVersion(IndexMetaData.SETTING_VERSION_UPGRADED, indexCreatedVersion);
String stringLuceneVersion = settings.get(SETTING_VERSION_MINIMUM_COMPATIBLE);
if (stringLuceneVersion != null) {
try {
this.minimumCompatibleLuceneVersion = org.apache.lucene.util.Version.parse(stringLuceneVersion);
} catch (ParseException ex) {
throw new IllegalStateException("Cannot parse lucene version [" + stringLuceneVersion + "] in the [" + SETTING_VERSION_MINIMUM_COMPATIBLE +"] setting", ex);
}
} else {
this.minimumCompatibleLuceneVersion = null;
}
final String hashFunction = settings.get(SETTING_LEGACY_ROUTING_HASH_FUNCTION);
if (hashFunction == null) {
routingHashFunction = MURMUR3_HASH_FUNCTION;
} else {
final Class hashFunctionClass;
try {
hashFunctionClass = Class.forName(hashFunction).asSubclass(HashFunction.class);
} catch (ClassNotFoundException|NoClassDefFoundError e) {
throw new ElasticsearchException("failed to load custom hash function [" + hashFunction + "]", e);
}
try {
routingHashFunction = hashFunctionClass.newInstance();
} catch (InstantiationException | IllegalAccessException e) {
throw new IllegalStateException("Cannot instantiate hash function", e);
}
}
useTypeForRouting = settings.getAsBoolean(SETTING_LEGACY_ROUTING_USE_TYPE, false);
}
public String getIndex() {
return index;
}
public String getIndexUUID() {
return settings.get(SETTING_INDEX_UUID, INDEX_UUID_NA_VALUE);
}
/**
* Test whether the current index UUID is the same as the given one. Returns true if either are _na_
*/
public boolean isSameUUID(String otherUUID) {
assert otherUUID != null;
assert getIndexUUID() != null;
if (INDEX_UUID_NA_VALUE.equals(otherUUID) || INDEX_UUID_NA_VALUE.equals(getIndexUUID())) {
return true;
}
return otherUUID.equals(getIndexUUID());
}
public long getVersion() {
return this.version;
}
/**
* Return the {@link Version} on which this index has been created. This
* information is typically useful for backward compatibility.
*/
public Version getCreationVersion() {
return indexCreatedVersion;
}
/**
* Return the {@link Version} on which this index has been upgraded. This
* information is typically useful for backward compatibility.
*/
public Version getUpgradeVersion() {
return indexUpgradedVersion;
}
/**
* Return the {@link org.apache.lucene.util.Version} of the oldest lucene segment in the index
*/
public org.apache.lucene.util.Version getMinimumCompatibleVersion() {
return minimumCompatibleLuceneVersion;
}
/**
* Return the {@link HashFunction} that should be used for routing.
*/
public HashFunction getRoutingHashFunction() {
return routingHashFunction;
}
/**
* Return whether routing should use the _type in addition to the _id in
* order to decide which shard a document should go to.
*/
public boolean getRoutingUseType() {
return useTypeForRouting;
}
public long getCreationDate() {
return settings.getAsLong(SETTING_CREATION_DATE, -1l);
}
public State getState() {
return this.state;
}
public int getNumberOfShards() {
return this.numberOfShards;
}
public int getNumberOfReplicas() {
return this.numberOfReplicas;
}
public int getTotalNumberOfShards() {
return totalNumberOfShards;
}
public Settings getSettings() {
return settings;
}
public ImmutableOpenMap getAliases() {
return this.aliases;
}
public ImmutableOpenMap getMappings() {
return mappings;
}
@Nullable
public MappingMetaData mapping(String mappingType) {
return mappings.get(mappingType);
}
/**
* Sometimes, the default mapping exists and an actual mapping is not created yet (introduced),
* in this case, we want to return the default mapping in case it has some default mapping definitions.
*
* Note, once the mapping type is introduced, the default mapping is applied on the actual typed MappingMetaData,
* setting its routing, timestamp, and so on if needed.
*/
@Nullable
public MappingMetaData mappingOrDefault(String mappingType) {
MappingMetaData mapping = mappings.get(mappingType);
if (mapping != null) {
return mapping;
}
return mappings.get(MapperService.DEFAULT_MAPPING);
}
public ImmutableOpenMap getCustoms() {
return this.customs;
}
@SuppressWarnings("unchecked")
public T custom(String type) {
return (T) customs.get(type);
}
@Nullable
public DiscoveryNodeFilters requireFilters() {
return requireFilters;
}
@Nullable
public DiscoveryNodeFilters includeFilters() {
return includeFilters;
}
@Nullable
public DiscoveryNodeFilters excludeFilters() {
return excludeFilters;
}
@Override
public boolean equals(Object o) {
if (this == o) {
return true;
}
if (o == null || getClass() != o.getClass()) {
return false;
}
IndexMetaData that = (IndexMetaData) o;
if (!aliases.equals(that.aliases)) {
return false;
}
if (!index.equals(that.index)) {
return false;
}
if (!mappings.equals(that.mappings)) {
return false;
}
if (!settings.equals(that.settings)) {
return false;
}
if (state != that.state) {
return false;
}
if (!customs.equals(that.customs)) {
return false;
}
return true;
}
@Override
public int hashCode() {
int result = index.hashCode();
result = 31 * result + state.hashCode();
result = 31 * result + aliases.hashCode();
result = 31 * result + settings.hashCode();
result = 31 * result + mappings.hashCode();
return result;
}
@Override
public Diff diff(IndexMetaData previousState) {
return new IndexMetaDataDiff(previousState, this);
}
@Override
public Diff readDiffFrom(StreamInput in) throws IOException {
return new IndexMetaDataDiff(in);
}
@Override
public IndexMetaData fromXContent(XContentParser parser, ParseFieldMatcher parseFieldMatcher) throws IOException {
return Builder.fromXContent(parser);
}
@Override
public XContentBuilder toXContent(XContentBuilder builder, Params params) throws IOException {
Builder.toXContent(this, builder, params);
return builder;
}
private static class IndexMetaDataDiff implements Diff {
private final String index;
private final long version;
private final State state;
private final Settings settings;
private final Diff> mappings;
private final Diff> aliases;
private Diff> customs;
public IndexMetaDataDiff(IndexMetaData before, IndexMetaData after) {
index = after.index;
version = after.version;
state = after.state;
settings = after.settings;
mappings = DiffableUtils.diff(before.mappings, after.mappings);
aliases = DiffableUtils.diff(before.aliases, after.aliases);
customs = DiffableUtils.diff(before.customs, after.customs);
}
public IndexMetaDataDiff(StreamInput in) throws IOException {
index = in.readString();
version = in.readLong();
state = State.fromId(in.readByte());
settings = Settings.readSettingsFromStream(in);
mappings = DiffableUtils.readImmutableOpenMapDiff(in, MappingMetaData.PROTO);
aliases = DiffableUtils.readImmutableOpenMapDiff(in, AliasMetaData.PROTO);
customs = DiffableUtils.readImmutableOpenMapDiff(in, new DiffableUtils.KeyedReader() {
@Override
public Custom readFrom(StreamInput in, String key) throws IOException {
return lookupPrototypeSafe(key).readFrom(in);
}
@Override
public Diff readDiffFrom(StreamInput in, String key) throws IOException {
return lookupPrototypeSafe(key).readDiffFrom(in);
}
});
}
@Override
public void writeTo(StreamOutput out) throws IOException {
out.writeString(index);
out.writeLong(version);
out.writeByte(state.id);
Settings.writeSettingsToStream(settings, out);
mappings.writeTo(out);
aliases.writeTo(out);
customs.writeTo(out);
}
@Override
public IndexMetaData apply(IndexMetaData part) {
Builder builder = builder(index);
builder.version(version);
builder.state(state);
builder.settings(settings);
builder.mappings.putAll(mappings.apply(part.mappings));
builder.aliases.putAll(aliases.apply(part.aliases));
builder.customs.putAll(customs.apply(part.customs));
return builder.build();
}
}
@Override
public IndexMetaData readFrom(StreamInput in) throws IOException {
Builder builder = new Builder(in.readString());
builder.version(in.readLong());
builder.state(State.fromId(in.readByte()));
builder.settings(readSettingsFromStream(in));
int mappingsSize = in.readVInt();
for (int i = 0; i < mappingsSize; i++) {
MappingMetaData mappingMd = MappingMetaData.PROTO.readFrom(in);
builder.putMapping(mappingMd);
}
int aliasesSize = in.readVInt();
for (int i = 0; i < aliasesSize; i++) {
AliasMetaData aliasMd = AliasMetaData.Builder.readFrom(in);
builder.putAlias(aliasMd);
}
int customSize = in.readVInt();
for (int i = 0; i < customSize; i++) {
String type = in.readString();
Custom customIndexMetaData = lookupPrototypeSafe(type).readFrom(in);
builder.putCustom(type, customIndexMetaData);
}
return builder.build();
}
@Override
public void writeTo(StreamOutput out) throws IOException {
out.writeString(index);
out.writeLong(version);
out.writeByte(state.id());
writeSettingsToStream(settings, out);
out.writeVInt(mappings.size());
for (ObjectCursor cursor : mappings.values()) {
cursor.value.writeTo(out);
}
out.writeVInt(aliases.size());
for (ObjectCursor cursor : aliases.values()) {
cursor.value.writeTo(out);
}
out.writeVInt(customs.size());
for (ObjectObjectCursor cursor : customs) {
out.writeString(cursor.key);
cursor.value.writeTo(out);
}
}
public static Builder builder(String index) {
return new Builder(index);
}
public static Builder builder(IndexMetaData indexMetaData) {
return new Builder(indexMetaData);
}
public static class Builder {
private String index;
private State state = State.OPEN;
private long version = 1;
private Settings settings = Settings.Builder.EMPTY_SETTINGS;
private final ImmutableOpenMap.Builder mappings;
private final ImmutableOpenMap.Builder aliases;
private final ImmutableOpenMap.Builder customs;
public Builder(String index) {
this.index = index;
this.mappings = ImmutableOpenMap.builder();
this.aliases = ImmutableOpenMap.builder();
this.customs = ImmutableOpenMap.builder();
}
public Builder(IndexMetaData indexMetaData) {
this.index = indexMetaData.getIndex();
this.state = indexMetaData.state;
this.version = indexMetaData.version;
this.settings = indexMetaData.getSettings();
this.mappings = ImmutableOpenMap.builder(indexMetaData.mappings);
this.aliases = ImmutableOpenMap.builder(indexMetaData.aliases);
this.customs = ImmutableOpenMap.builder(indexMetaData.customs);
}
public String index() {
return index;
}
public Builder index(String index) {
this.index = index;
return this;
}
public Builder numberOfShards(int numberOfShards) {
settings = settingsBuilder().put(settings).put(SETTING_NUMBER_OF_SHARDS, numberOfShards).build();
return this;
}
public int numberOfShards() {
return settings.getAsInt(SETTING_NUMBER_OF_SHARDS, -1);
}
public Builder numberOfReplicas(int numberOfReplicas) {
settings = settingsBuilder().put(settings).put(SETTING_NUMBER_OF_REPLICAS, numberOfReplicas).build();
return this;
}
public int numberOfReplicas() {
return settings.getAsInt(SETTING_NUMBER_OF_REPLICAS, -1);
}
public Builder creationDate(long creationDate) {
settings = settingsBuilder().put(settings).put(SETTING_CREATION_DATE, creationDate).build();
return this;
}
public long creationDate() {
return settings.getAsLong(SETTING_CREATION_DATE, -1l);
}
public Builder settings(Settings.Builder settings) {
this.settings = settings.build();
return this;
}
public Builder settings(Settings settings) {
this.settings = settings;
return this;
}
public MappingMetaData mapping(String type) {
return mappings.get(type);
}
public Builder removeMapping(String mappingType) {
mappings.remove(mappingType);
return this;
}
public Builder putMapping(String type, String source) throws IOException {
try (XContentParser parser = XContentFactory.xContent(source).createParser(source)) {
putMapping(new MappingMetaData(type, parser.mapOrdered()));
}
return this;
}
public Builder putMapping(MappingMetaData mappingMd) {
mappings.put(mappingMd.type(), mappingMd);
return this;
}
public Builder state(State state) {
this.state = state;
return this;
}
public Builder putAlias(AliasMetaData aliasMetaData) {
aliases.put(aliasMetaData.alias(), aliasMetaData);
return this;
}
public Builder putAlias(AliasMetaData.Builder aliasMetaData) {
aliases.put(aliasMetaData.alias(), aliasMetaData.build());
return this;
}
public Builder removeAlias(String alias) {
aliases.remove(alias);
return this;
}
public Builder removeAllAliases() {
aliases.clear();
return this;
}
public Builder putCustom(String type, Custom customIndexMetaData) {
this.customs.put(type, customIndexMetaData);
return this;
}
public Builder removeCustom(String type) {
this.customs.remove(type);
return this;
}
public Custom getCustom(String type) {
return this.customs.get(type);
}
public long version() {
return this.version;
}
public Builder version(long version) {
this.version = version;
return this;
}
public IndexMetaData build() {
ImmutableOpenMap.Builder tmpAliases = aliases;
Settings tmpSettings = settings;
// update default mapping on the MappingMetaData
if (mappings.containsKey(MapperService.DEFAULT_MAPPING)) {
MappingMetaData defaultMapping = mappings.get(MapperService.DEFAULT_MAPPING);
for (ObjectCursor cursor : mappings.values()) {
cursor.value.updateDefaultMapping(defaultMapping);
}
}
return new IndexMetaData(index, version, state, tmpSettings, mappings.build(), tmpAliases.build(), customs.build());
}
public static void toXContent(IndexMetaData indexMetaData, XContentBuilder builder, ToXContent.Params params) throws IOException {
builder.startObject(indexMetaData.getIndex(), XContentBuilder.FieldCaseConversion.NONE);
builder.field("version", indexMetaData.getVersion());
builder.field("state", indexMetaData.getState().toString().toLowerCase(Locale.ENGLISH));
boolean binary = params.paramAsBoolean("binary", false);
builder.startObject("settings");
for (Map.Entry entry : indexMetaData.getSettings().getAsMap().entrySet()) {
builder.field(entry.getKey(), entry.getValue());
}
builder.endObject();
builder.startArray("mappings");
for (ObjectObjectCursor cursor : indexMetaData.getMappings()) {
if (binary) {
builder.value(cursor.value.source().compressed());
} else {
byte[] data = cursor.value.source().uncompressed();
XContentParser parser = XContentFactory.xContent(data).createParser(data);
Map mapping = parser.mapOrdered();
parser.close();
builder.map(mapping);
}
}
builder.endArray();
for (ObjectObjectCursor cursor : indexMetaData.getCustoms()) {
builder.startObject(cursor.key, XContentBuilder.FieldCaseConversion.NONE);
cursor.value.toXContent(builder, params);
builder.endObject();
}
builder.startObject("aliases");
for (ObjectCursor cursor : indexMetaData.getAliases().values()) {
AliasMetaData.Builder.toXContent(cursor.value, builder, params);
}
builder.endObject();
builder.endObject();
}
public static IndexMetaData fromXContent(XContentParser parser) throws IOException {
if (parser.currentToken() == null) { // fresh parser? move to the first token
parser.nextToken();
}
if (parser.currentToken() == XContentParser.Token.START_OBJECT) { // on a start object move to next token
parser.nextToken();
}
Builder builder = new Builder(parser.currentName());
String currentFieldName = null;
XContentParser.Token token = parser.nextToken();
while ((token = parser.nextToken()) != XContentParser.Token.END_OBJECT) {
if (token == XContentParser.Token.FIELD_NAME) {
currentFieldName = parser.currentName();
} else if (token == XContentParser.Token.START_OBJECT) {
if ("settings".equals(currentFieldName)) {
builder.settings(Settings.settingsBuilder().put(SettingsLoader.Helper.loadNestedFromMap(parser.mapOrdered())));
} else if ("mappings".equals(currentFieldName)) {
while ((token = parser.nextToken()) != XContentParser.Token.END_OBJECT) {
if (token == XContentParser.Token.FIELD_NAME) {
currentFieldName = parser.currentName();
} else if (token == XContentParser.Token.START_OBJECT) {
String mappingType = currentFieldName;
Map mappingSource = MapBuilder.newMapBuilder().put(mappingType, parser.mapOrdered()).map();
builder.putMapping(new MappingMetaData(mappingType, mappingSource));
}
}
} else if ("aliases".equals(currentFieldName)) {
while (parser.nextToken() != XContentParser.Token.END_OBJECT) {
builder.putAlias(AliasMetaData.Builder.fromXContent(parser));
}
} else {
// check if its a custom index metadata
Custom proto = lookupPrototype(currentFieldName);
if (proto == null) {
//TODO warn
parser.skipChildren();
} else {
Custom custom = proto.fromXContent(parser);
builder.putCustom(custom.type(), custom);
}
}
} else if (token == XContentParser.Token.START_ARRAY) {
if ("mappings".equals(currentFieldName)) {
while ((token = parser.nextToken()) != XContentParser.Token.END_ARRAY) {
if (token == XContentParser.Token.VALUE_EMBEDDED_OBJECT) {
builder.putMapping(new MappingMetaData(new CompressedXContent(parser.binaryValue())));
} else {
Map mapping = parser.mapOrdered();
if (mapping.size() == 1) {
String mappingType = mapping.keySet().iterator().next();
builder.putMapping(new MappingMetaData(mappingType, mapping));
}
}
}
}
} else if (token.isValue()) {
if ("state".equals(currentFieldName)) {
builder.state(State.fromString(parser.text()));
} else if ("version".equals(currentFieldName)) {
builder.version(parser.longValue());
}
}
}
return builder.build();
}
public static IndexMetaData readFrom(StreamInput in) throws IOException {
return PROTO.readFrom(in);
}
}
/**
* Returns true iff the given settings indicate that the index
* associated with these settings allocates it's shards on a shared
* filesystem. Otherwise false. The default setting for this
* is the returned value from
* {@link #isIndexUsingShadowReplicas(org.elasticsearch.common.settings.Settings)}.
*/
public static boolean isOnSharedFilesystem(Settings settings) {
return settings.getAsBoolean(SETTING_SHARED_FILESYSTEM, isIndexUsingShadowReplicas(settings));
}
/**
* Returns true iff the given settings indicate that the index associated
* with these settings uses shadow replicas. Otherwise false. The default
* setting for this is false.
*/
public static boolean isIndexUsingShadowReplicas(Settings settings) {
return settings.getAsBoolean(SETTING_SHADOW_REPLICAS, false);
}
/**
* Adds human readable version and creation date settings.
* This method is used to display the settings in a human readable format in REST API
*/
public static Settings addHumanReadableSettings(Settings settings) {
Settings.Builder builder = Settings.builder().put(settings);
Version version = settings.getAsVersion(SETTING_VERSION_CREATED, null);
if (version != null) {
builder.put(SETTING_VERSION_CREATED_STRING, version.toString());
}
Version versionUpgraded = settings.getAsVersion(SETTING_VERSION_UPGRADED, null);
if (versionUpgraded != null) {
builder.put(SETTING_VERSION_UPGRADED_STRING, versionUpgraded.toString());
}
Long creationDate = settings.getAsLong(SETTING_CREATION_DATE, null);
if (creationDate != null) {
DateTime creationDateTime = new DateTime(creationDate, DateTimeZone.UTC);
builder.put(SETTING_CREATION_DATE_STRING, creationDateTime.toString());
}
return builder.build();
}
}