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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.index.reindex;
import org.elasticsearch.Version;
import org.elasticsearch.common.Nullable;
import org.elasticsearch.common.bytes.BytesReference;
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.unit.TimeValue;
import org.elasticsearch.common.xcontent.DeprecationHandler;
import org.elasticsearch.common.xcontent.NamedXContentRegistry;
import org.elasticsearch.common.xcontent.ToXContent;
import org.elasticsearch.common.xcontent.ToXContentObject;
import org.elasticsearch.common.xcontent.XContent;
import org.elasticsearch.common.xcontent.XContentBuilder;
import org.elasticsearch.common.xcontent.XContentParser;
import org.elasticsearch.common.xcontent.json.JsonXContent;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import java.util.Objects;
import static java.util.Collections.unmodifiableMap;
import static java.util.Objects.requireNonNull;
import static org.elasticsearch.common.unit.TimeValue.timeValueSeconds;
import static org.elasticsearch.index.query.QueryBuilders.matchAllQuery;
public class RemoteInfo implements Writeable, ToXContentObject {
/**
* Default {@link #socketTimeout} for requests that don't have one set.
*/
public static final TimeValue DEFAULT_SOCKET_TIMEOUT = timeValueSeconds(30);
/**
* Default {@link #connectTimeout} for requests that don't have one set.
*/
public static final TimeValue DEFAULT_CONNECT_TIMEOUT = timeValueSeconds(30);
public static final XContent QUERY_CONTENT_TYPE = JsonXContent.jsonXContent;
private final String scheme;
private final String host;
private final int port;
private final String pathPrefix;
private final BytesReference query;
private final String username;
private final String password;
private final Map headers;
/**
* Time to wait for a response from each request.
*/
private final TimeValue socketTimeout;
/**
* Time to wait for a connecting to the remote cluster.
*/
private final TimeValue connectTimeout;
public RemoteInfo(String scheme, String host, int port, String pathPrefix, BytesReference query, String username, String password,
Map headers, TimeValue socketTimeout, TimeValue connectTimeout) {
assert isQueryJson(query) : "Query does not appear to be JSON";
this.scheme = requireNonNull(scheme, "[scheme] must be specified to reindex from a remote cluster");
this.host = requireNonNull(host, "[host] must be specified to reindex from a remote cluster");
this.port = port;
this.pathPrefix = pathPrefix;
this.query = requireNonNull(query, "[query] must be specified to reindex from a remote cluster");
this.username = username;
this.password = password;
this.headers = unmodifiableMap(requireNonNull(headers, "[headers] is required"));
this.socketTimeout = requireNonNull(socketTimeout, "[socketTimeout] must be specified");
this.connectTimeout = requireNonNull(connectTimeout, "[connectTimeout] must be specified");
}
/**
* Read from a stream.
*/
public RemoteInfo(StreamInput in) throws IOException {
scheme = in.readString();
host = in.readString();
port = in.readVInt();
query = in.readBytesReference();
username = in.readOptionalString();
password = in.readOptionalString();
int headersLength = in.readVInt();
Map headers = new HashMap<>(headersLength);
for (int i = 0; i < headersLength; i++) {
headers.put(in.readString(), in.readString());
}
this.headers = unmodifiableMap(headers);
socketTimeout = in.readTimeValue();
connectTimeout = in.readTimeValue();
if (in.getVersion().onOrAfter(Version.V_6_4_0)) {
pathPrefix = in.readOptionalString();
} else {
pathPrefix = null;
}
}
@Override
public void writeTo(StreamOutput out) throws IOException {
out.writeString(scheme);
out.writeString(host);
out.writeVInt(port);
out.writeBytesReference(query);
out.writeOptionalString(username);
out.writeOptionalString(password);
out.writeVInt(headers.size());
for (Map.Entry header : headers.entrySet()) {
out.writeString(header.getKey());
out.writeString(header.getValue());
}
out.writeTimeValue(socketTimeout);
out.writeTimeValue(connectTimeout);
if (out.getVersion().onOrAfter(Version.V_6_4_0)) {
out.writeOptionalString(pathPrefix);
}
}
public String getScheme() {
return scheme;
}
public String getHost() {
return host;
}
public int getPort() {
return port;
}
@Nullable
public String getPathPrefix() {
return pathPrefix;
}
public BytesReference getQuery() {
return query;
}
@Nullable
public String getUsername() {
return username;
}
@Nullable
public String getPassword() {
return password;
}
public Map getHeaders() {
return headers;
}
/**
* Time to wait for a response from each request.
*/
public TimeValue getSocketTimeout() {
return socketTimeout;
}
/**
* Time to wait to connect to the external cluster.
*/
public TimeValue getConnectTimeout() {
return connectTimeout;
}
@Override
public String toString() {
StringBuilder b = new StringBuilder();
if (false == "http".equals(scheme)) {
// http is the default so it isn't worth taking up space if it is the scheme
b.append("scheme=").append(scheme).append(' ');
}
b.append("host=").append(host).append(" port=").append(port);
if (pathPrefix != null) {
b.append(" pathPrefix=").append(pathPrefix);
}
b.append(" query=").append(query.utf8ToString());
if (username != null) {
b.append(" username=").append(username);
}
if (password != null) {
b.append(" password=<<>>");
}
return b.toString();
}
@Override
public XContentBuilder toXContent(XContentBuilder builder, Params params) throws IOException {
builder.startObject();
if (username != null) {
builder.field("username", username);
}
if (password != null) {
builder.field("password", password);
}
builder.field("host", scheme + "://" + host + ":" + port +
(pathPrefix == null ? "" : "/" + pathPrefix));
if (headers.size() >0 ) {
builder.field("headers", headers);
}
builder.field("socket_timeout", socketTimeout.getStringRep());
builder.field("connect_timeout", connectTimeout.getStringRep());
builder.endObject();
return builder;
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
RemoteInfo that = (RemoteInfo) o;
return port == that.port &&
Objects.equals(scheme, that.scheme) &&
Objects.equals(host, that.host) &&
Objects.equals(pathPrefix, that.pathPrefix) &&
Objects.equals(query, that.query) &&
Objects.equals(username, that.username) &&
Objects.equals(password, that.password) &&
Objects.equals(headers, that.headers) &&
Objects.equals(socketTimeout, that.socketTimeout) &&
Objects.equals(connectTimeout, that.connectTimeout);
}
@Override
public int hashCode() {
return Objects.hash(scheme, host, port, pathPrefix, query, username, password, headers, socketTimeout, connectTimeout);
}
static BytesReference queryForRemote(Map source) throws IOException {
XContentBuilder builder = XContentBuilder.builder(QUERY_CONTENT_TYPE).prettyPrint();
Object query = source.remove("query");
if (query == null) {
return BytesReference.bytes(matchAllQuery().toXContent(builder, ToXContent.EMPTY_PARAMS));
}
if (!(query instanceof Map)) {
throw new IllegalArgumentException("Expected [query] to be an object but was [" + query + "]");
}
@SuppressWarnings("unchecked")
Map map = (Map) query;
return BytesReference.bytes(builder.map(map));
}
private static boolean isQueryJson(BytesReference bytesReference) {
try (XContentParser parser = QUERY_CONTENT_TYPE.createParser(NamedXContentRegistry.EMPTY,
DeprecationHandler.THROW_UNSUPPORTED_OPERATION, bytesReference.streamInput())) {
Map query = parser.map();
return true;
} catch (IOException e) {
throw new AssertionError("Could not parse JSON", e);
}
}
}