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The Java operations layer for the MongoDB Java Driver. Third parties can ' +
'wrap this layer to provide custom higher-level APIs
/*
* Copyright 2008-present MongoDB, Inc.
*
* Licensed 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 com.mongodb.connection;
import com.mongodb.ServerAddress;
import com.mongodb.TagSet;
import com.mongodb.annotations.Immutable;
import com.mongodb.annotations.NotThreadSafe;
import com.mongodb.internal.connection.DecimalFormatHelper;
import com.mongodb.internal.connection.Time;
import com.mongodb.lang.Nullable;
import org.bson.types.ObjectId;
import java.util.Collections;
import java.util.Date;
import java.util.HashSet;
import java.util.Objects;
import java.util.Set;
import java.util.concurrent.TimeUnit;
import static com.mongodb.assertions.Assertions.notNull;
import static com.mongodb.connection.ServerConnectionState.CONNECTED;
import static com.mongodb.connection.ServerType.LOAD_BALANCER;
import static com.mongodb.connection.ServerType.REPLICA_SET_PRIMARY;
import static com.mongodb.connection.ServerType.REPLICA_SET_SECONDARY;
import static com.mongodb.connection.ServerType.SHARD_ROUTER;
import static com.mongodb.connection.ServerType.STANDALONE;
import static com.mongodb.connection.ServerType.UNKNOWN;
/**
* Immutable snapshot state of a server.
*
* @since 3.0
*/
@Immutable
public class ServerDescription {
/**
* The minimum supported driver server version
* @since 3.8
*/
public static final String MIN_DRIVER_SERVER_VERSION = "3.6";
/**
* The minimum supported driver wire version
* @since 3.8
*/
public static final int MIN_DRIVER_WIRE_VERSION = 6;
/**
* The maximum supported driver wire version
* @since 3.8
*/
public static final int MAX_DRIVER_WIRE_VERSION = 21;
private static final int DEFAULT_MAX_DOCUMENT_SIZE = 0x1000000; // 16MB
private final ServerAddress address;
private final ServerType type;
private final String canonicalAddress;
private final Set hosts;
private final Set passives;
private final Set arbiters;
private final String primary;
private final int maxDocumentSize;
private final TagSet tagSet;
private final String setName;
private final long roundTripTimeNanos;
private final boolean ok;
private final ServerConnectionState state;
private final int minWireVersion;
private final int maxWireVersion;
private final ObjectId electionId;
private final Integer setVersion;
private final TopologyVersion topologyVersion;
private final Date lastWriteDate;
private final long lastUpdateTimeNanos;
private final Integer logicalSessionTimeoutMinutes;
private final Throwable exception;
private final boolean helloOk;
/**
* Gets a Builder for creating a new ServerDescription instance.
*
* @return a new Builder for ServerDescription.
*/
public static Builder builder() {
return new Builder();
}
/**
* Creates a Builder for a ServerDescription instance based on a previous serverDescription.
*
* @param serverDescription the ServerDescription to base the builder from
* @return a new Builder for ServerDescription.
* @since 4.1
*/
public static Builder builder(final ServerDescription serverDescription) {
return new Builder(serverDescription);
}
/**
* Gets the string representing the host name and port that this member of a replica set was configured with,
* e.g. {@code "somehost:27019"}. This is typically derived from the "me" field from the "hello" command response.
*
* @return the host name and port that this replica set member is configured with.
*/
@Nullable
public String getCanonicalAddress() {
return canonicalAddress;
}
/**
* Gets the session timeout in minutes.
*
* @return the session timeout in minutes, or null if sessions are not supported by this server
* @mongodb.server.release 3.6
* @since 3.6
*/
@Nullable
public Integer getLogicalSessionTimeoutMinutes() {
return logicalSessionTimeoutMinutes;
}
/**
* Gets whether this server supports the "hello" command. The default is {@code false}.
*
* @return true if this server supports the "hello" command.
* @mongodb.server.release 5.0
* @since 4.3
*/
public boolean isHelloOk() {
return helloOk;
}
/**
* A builder for creating ServerDescription.
*/
@NotThreadSafe
public static class Builder {
private ServerAddress address;
private ServerType type = UNKNOWN;
private String canonicalAddress;
private Set hosts = Collections.emptySet();
private Set passives = Collections.emptySet();
private Set arbiters = Collections.emptySet();
private String primary;
private int maxDocumentSize = DEFAULT_MAX_DOCUMENT_SIZE;
private TagSet tagSet = new TagSet();
private String setName;
private long roundTripTimeNanos;
private boolean ok;
private ServerConnectionState state;
private int minWireVersion = 0;
private int maxWireVersion = 0;
private ObjectId electionId;
private Integer setVersion;
private TopologyVersion topologyVersion;
private Date lastWriteDate;
private long lastUpdateTimeNanos = Time.nanoTime();
private Integer logicalSessionTimeoutMinutes;
private boolean helloOk;
private Throwable exception;
Builder() {
}
Builder(final ServerDescription serverDescription) {
this.address = serverDescription.address;
this.type = serverDescription.type;
this.canonicalAddress = serverDescription.canonicalAddress;
this.hosts = serverDescription.hosts;
this.passives = serverDescription.passives;
this.arbiters = serverDescription.arbiters;
this.primary = serverDescription.primary;
this.maxDocumentSize = serverDescription.maxDocumentSize;
this.tagSet = serverDescription.tagSet;
this.setName = serverDescription.setName;
this.roundTripTimeNanos = serverDescription.roundTripTimeNanos;
this.ok = serverDescription.ok;
this.state = serverDescription.state;
this.minWireVersion = serverDescription.minWireVersion;
this.maxWireVersion = serverDescription.maxWireVersion;
this.electionId = serverDescription.electionId;
this.setVersion = serverDescription.setVersion;
this.topologyVersion = serverDescription.topologyVersion;
this.lastWriteDate = serverDescription.lastWriteDate;
this.lastUpdateTimeNanos = serverDescription.lastUpdateTimeNanos;
this.logicalSessionTimeoutMinutes = serverDescription.logicalSessionTimeoutMinutes;
this.exception = serverDescription.exception;
}
/**
* Sets the address of the server.
*
* @param address the address of the server
* @return this
*/
public Builder address(final ServerAddress address) {
this.address = address;
return this;
}
/**
* Sets the canonical host name and port of this server. This is typically derived from the "me" field contained in the "hello"
* command. response.
*
* @param canonicalAddress the host name and port as a string
*
* @return this
*/
public Builder canonicalAddress(@Nullable final String canonicalAddress) {
this.canonicalAddress = canonicalAddress;
return this;
}
/**
* Sets the type of the server, for example whether it's a standalone or in a replica set.
*
* @param type the Server type
* @return this
*/
public Builder type(final ServerType type) {
this.type = notNull("type", type);
return this;
}
/**
* Sets all members of the replica set that are neither hidden, passive, nor arbiters.
*
* @param hosts A Set of strings in the format of "[hostname]:[port]" that contains all members of the replica set that are neither
* hidden, passive, nor arbiters.
* @return this
*/
public Builder hosts(@Nullable final Set hosts) {
this.hosts = hosts == null ? Collections.emptySet() : Collections.unmodifiableSet(new HashSet<>(hosts));
return this;
}
/**
* Sets the passive members of the replica set.
*
* @param passives A Set of strings in the format of "[hostname]:[port]" listing all members of the replica set which have a
* priority of 0.
* @return this
*/
public Builder passives(@Nullable final Set passives) {
this.passives = passives == null ? Collections.emptySet() : Collections.unmodifiableSet(new HashSet<>(passives));
return this;
}
/**
* Sets the arbiters in the replica set
*
* @param arbiters A Set of strings in the format of "[hostname]:[port]" containing all members of the replica set that are
* arbiters.
* @return this
*/
public Builder arbiters(@Nullable final Set arbiters) {
this.arbiters = arbiters == null ? Collections.emptySet() : Collections.unmodifiableSet(new HashSet<>(arbiters));
return this;
}
/**
* Sets the address of the current primary in the replica set
*
* @param primary A string in the format of "[hostname]:[port]" listing the current primary member of the replica set.
* @return this
*/
public Builder primary(@Nullable final String primary) {
this.primary = primary;
return this;
}
/**
* The maximum permitted size of a BSON object in bytes for this mongod process. Defaults to 16MB.
*
* @param maxDocumentSize the maximum size a document can be
* @return this
*/
public Builder maxDocumentSize(final int maxDocumentSize) {
this.maxDocumentSize = maxDocumentSize;
return this;
}
/**
* A set of any tags assigned to this member.
*
* @param tagSet a TagSet with all the tags for this server.
* @return this
*/
public Builder tagSet(@Nullable final TagSet tagSet) {
this.tagSet = tagSet == null ? new TagSet() : tagSet;
return this;
}
/**
* Set the time it took to make the round trip for requesting this information from the server
*
* @param roundTripTime the time taken
* @param timeUnit the units of the time taken
* @return this
*/
public Builder roundTripTime(final long roundTripTime, final TimeUnit timeUnit) {
this.roundTripTimeNanos = timeUnit.toNanos(roundTripTime);
return this;
}
/**
* Sets the name of the replica set
*
* @param setName the name of the replica set
* @return this
*/
public Builder setName(@Nullable final String setName) {
this.setName = setName;
return this;
}
/**
* The isOK() result from requesting this information from MongoDB
*
* @param ok true if the request executed correctly
* @return this
*/
public Builder ok(final boolean ok) {
this.ok = ok;
return this;
}
/**
* The current state of the connection to the server.
*
* @param state ServerConnectionState representing whether the server has been successfully connected to
* @return this
*/
public Builder state(final ServerConnectionState state) {
this.state = state;
return this;
}
/**
* The earliest version of the wire protocol that this MongoDB server is capable of using to communicate with clients.
*
* @param minWireVersion the minimum protocol version supported by this server
* @return this
*/
public Builder minWireVersion(final int minWireVersion) {
this.minWireVersion = minWireVersion;
return this;
}
/**
* The latest version of the wire protocol that this MongoDB server is capable of using to communicate with clients.
*
* @param maxWireVersion the maximum protocol version supported by this server
* @return this
*/
public Builder maxWireVersion(final int maxWireVersion) {
this.maxWireVersion = maxWireVersion;
return this;
}
/**
* Sets the electionId reported by this server.
*
* @param electionId the electionId
* @return this
*/
public Builder electionId(@Nullable final ObjectId electionId) {
this.electionId = electionId;
return this;
}
/**
* Sets the setVersion reported by this server.
*
* @param setVersion the set version
* @return this
*/
public Builder setVersion(@Nullable final Integer setVersion) {
this.setVersion = setVersion;
return this;
}
/**
* Sets the topologyVersion reported by this server.
*
* @param topologyVersion the topology version
* @return this
* @since 4.1
* @mongodb.server.release 4.4
*/
public Builder topologyVersion(@Nullable final TopologyVersion topologyVersion) {
this.topologyVersion = topologyVersion;
return this;
}
/**
* Sets the lastWriteDate reported by this server
*
* @param lastWriteDate the last write date, which may be null for servers prior to 3.4
* @return this
*
* @since 3.4
* @mongodb.server.release 3.4
*/
public Builder lastWriteDate(@Nullable final Date lastWriteDate) {
this.lastWriteDate = lastWriteDate;
return this;
}
/**
* Sets the last update time for this description, which is simply the time that the server description was created.
* A monotonic clock such as {@link System#nanoTime()} should be used to initialize this value.
*
* @param lastUpdateTimeNanos the last update time of this server description
* @return this
*
* @since 3.4
*/
public Builder lastUpdateTimeNanos(final long lastUpdateTimeNanos) {
this.lastUpdateTimeNanos = lastUpdateTimeNanos;
return this;
}
/**
* Sets the session timeout in minutes.
*
* @param logicalSessionTimeoutMinutes the session timeout in minutes, or null if sessions are not supported by this server
* @return this
* @mongodb.server.release 3.6
* @since 3.6
*/
public Builder logicalSessionTimeoutMinutes(@Nullable final Integer logicalSessionTimeoutMinutes) {
this.logicalSessionTimeoutMinutes = logicalSessionTimeoutMinutes;
return this;
}
/**
* Sets whether this server supports the "hello" command. The default is {@code false}.
*
* @param helloOk helloOk
* @return this
* @mongodb.server.release 5.0
* @since 4.3
*/
public Builder helloOk(final boolean helloOk) {
this.helloOk = helloOk;
return this;
}
/**
* Sets the exception thrown while attempting to determine the server description.
*
* @param exception the exception
* @return this
*/
public Builder exception(final Throwable exception) {
this.exception = exception;
return this;
}
/**
* Create a new ServerDescription from the settings in this builder.
*
* @return a new server description
*/
public ServerDescription build() {
return new ServerDescription(this);
}
}
/**
* Return whether the server is compatible with the driver. An incompatible server is one that has a min wire version greater that the
* driver's max wire version or a max wire version less than the driver's min wire version.
*
*
* A load balancer is always deemed to be compatible.
*
*
* @return true if the server is compatible with the driver.
*/
public boolean isCompatibleWithDriver() {
if (type == LOAD_BALANCER) {
return true;
}
if (isIncompatiblyOlderThanDriver()) {
return false;
}
if (isIncompatiblyNewerThanDriver()) {
return false;
}
return true;
}
/**
* Return whether the server is compatible with the driver. An incompatible server is one that has a min wire version greater that the
* driver's max wire version or a max wire version less than the driver's min wire version.
*
*
* A load balancer is always deemed to be compatible.
*
*
* @return true if the server is compatible with the driver.
* @since 3.6
*/
public boolean isIncompatiblyNewerThanDriver() {
return ok && type != LOAD_BALANCER && minWireVersion > MAX_DRIVER_WIRE_VERSION;
}
/**
* Return whether the server is compatible with the driver. An incompatible server is one that has a min wire version greater that the
* driver's max wire version or a max wire version less than the driver's min wire version.
*
*
* A load balancer is always deemed to be compatible.
*
*
* @return true if the server is compatible with the driver.
* @since 3.6
*/
public boolean isIncompatiblyOlderThanDriver() {
return ok && type != LOAD_BALANCER && maxWireVersion < MIN_DRIVER_WIRE_VERSION;
}
/**
* Get the default maximum document size.
*
* @return the default maximum document size
*/
public static int getDefaultMaxDocumentSize() {
return DEFAULT_MAX_DOCUMENT_SIZE;
}
/**
* Get the default minimum wire version
*
* @return the default minimum wire version
*/
public static int getDefaultMinWireVersion() {
return 0;
}
/**
* Get the default maximum wire version
*
* @return the default maximum wire version
*/
public static int getDefaultMaxWireVersion() {
return 0;
}
/**
* Gets the address of this server
*
* @return a ServerAddress containing the details of the address of this server.
*/
public ServerAddress getAddress() {
return address;
}
/**
* Gets whether this server is a replica set member.
*
* @return true if this server is part of a replica set
*/
public boolean isReplicaSetMember() {
return type.getClusterType() == ClusterType.REPLICA_SET;
}
/**
* Gets whether this is a server that is the entry point to a sharded instance of MongoDB.
*
* @return true if this server is a mongos instance
*/
public boolean isShardRouter() {
return type == SHARD_ROUTER;
}
/**
* Gets whether this is part of a replica set/sharded system, or is a single server.
*
* @return true if this is a single server
*/
public boolean isStandAlone() {
return type == STANDALONE;
}
/**
* Returns whether this can be treated as a primary server.
*
* @return true if this server is the primary in a replica set, is a mongos, a load balancer, or is a single standalone server
*/
public boolean isPrimary() {
return ok && (type == REPLICA_SET_PRIMARY || type == SHARD_ROUTER || type == STANDALONE || type == LOAD_BALANCER);
}
/**
* Returns whether this can be treated as a secondary server.
*
* @return true if this server is a secondary in a replica set, is a mongos, a load balancer, or is a single standalone server
*/
public boolean isSecondary() {
return ok && (type == REPLICA_SET_SECONDARY || type == SHARD_ROUTER || type == STANDALONE || type == LOAD_BALANCER);
}
/**
* Get a Set of strings in the format of "[hostname]:[port]" that contains all members of the replica set that are neither hidden,
* passive, nor arbiters.
*
* @return all members of the replica set that are neither hidden, passive, nor arbiters.
*/
public Set getHosts() {
return hosts;
}
/**
* Gets the passive members of the replica set.
*
* @return A set of strings in the format of "[hostname]:[port]" listing all members of the replica set which have a priority of 0.
*/
public Set getPassives() {
return passives;
}
/**
* Gets the arbiters in the replica set
*
* @return A Set of strings in the format of "[hostname]:[port]" containing all members of the replica set that are arbiters.
*/
public Set getArbiters() {
return arbiters;
}
/**
* Gets the address of the current primary in the replica set
*
* @return A string in the format of "[hostname]:[port]" listing the current primary member of the replica set.
*/
@Nullable
public String getPrimary() {
return primary;
}
/**
* The maximum permitted size of a BSON object in bytes for this mongod process. Defaults to 16MB.
*
* @return the maximum size a document can be
*/
public int getMaxDocumentSize() {
return maxDocumentSize;
}
/**
* A set of all tags assigned to this member.
*
* @return a TagSet with all the tags for this server.
*/
public TagSet getTagSet() {
return tagSet;
}
/**
* The earliest version of the wire protocol that this MongoDB server is capable of using to communicate with clients.
*
* @return the minimum protocol version supported by this server
*/
public int getMinWireVersion() {
return minWireVersion;
}
/**
* The latest version of the wire protocol that this MongoDB server is capable of using to communicate with clients.
*
* @return the maximum protocol version supported by this server
*/
public int getMaxWireVersion() {
return maxWireVersion;
}
/**
* The replica set electionid reported by this MongoDB server.
*
* @return the electionId, which may be null
*/
@Nullable
public ObjectId getElectionId() {
return electionId;
}
/**
* The replica set setVersion reported by this MongoDB server.
*
* @return the setVersion, which may be null
*/
@Nullable
public Integer getSetVersion() {
return setVersion;
}
/**
* The topologyVersion reported by this MongoDB server.
*
* @return the topologyVersion, which may be null
* @since 4.1
* @mongodb.server.release 4.4
*/
@Nullable
public TopologyVersion getTopologyVersion() {
return topologyVersion;
}
/**
* Gets the last write date.
* @return the last write date, which may be null
* @since 3.4
* @mongodb.server.release 3.4
*/
@Nullable
public Date getLastWriteDate() {
return lastWriteDate;
}
/**
* Gets the time that this server description was created, using a monotonic clock like {@link System#nanoTime()}.
*
* @param timeUnit the time unit
* @return the last update time in the given unit
*
* @since 3.4
*/
public long getLastUpdateTime(final TimeUnit timeUnit) {
return timeUnit.convert(lastUpdateTimeNanos, TimeUnit.NANOSECONDS);
}
/**
* Returns true if the server has the given tags. A server of either type {@code ServerType.STANDALONE} or {@code
* ServerType.SHARD_ROUTER} is considered to have all tags, so this method will always return true for instances of either of those
* types.
*
* @param desiredTags the tags
* @return true if this server has the given tags
*/
public boolean hasTags(final TagSet desiredTags) {
if (!ok) {
return false;
}
if (type == STANDALONE || type == SHARD_ROUTER) {
return true;
}
return tagSet.containsAll(desiredTags);
}
/**
* Gets the name of the replica set
*
* @return the name of the replica set
*/
@Nullable
public String getSetName() {
return setName;
}
/**
* The isOK() result from requesting this information from the server
*
* @return true if the request executed correctly
*/
public boolean isOk() {
return ok;
}
/**
* Gets the current state of the connection to the server.
*
* @return ServerConnectionState representing whether the server has been successfully connected to
*/
public ServerConnectionState getState() {
return state;
}
/**
* Gets the type of the server, for example whether it's a standalone or in a replica set.
*
* @return the server type
*/
public ServerType getType() {
return type;
}
/**
* Gets the type of the cluster this server is in (for example, replica set).
*
* @return a ClusterType representing the type of the cluster this server is in
*/
public ClusterType getClusterType() {
return type.getClusterType();
}
/**
* Get the time it took to make the round trip for requesting this information from the server in nanoseconds.
*
* @return the time taken to request the information, in nano seconds
*/
public long getRoundTripTimeNanos() {
return roundTripTimeNanos;
}
/**
* Gets the exception thrown while attempting to determine the server description. This is useful for diagnostic purposed when
* determining the root cause of a connectivity failure.
*
* @return the exception, which may be null
*/
@Nullable
public Throwable getException() {
return exception;
}
/**
* Returns true if this instance is equals to @code{o}. Note that equality is defined to NOT include the round trip time.
*
* @param o the object to compare to
* @return true if this instance is equals to @code{o}
*/
@Override
public boolean equals(final Object o) {
if (this == o) {
return true;
}
if (o == null || getClass() != o.getClass()) {
return false;
}
ServerDescription that = (ServerDescription) o;
if (maxDocumentSize != that.maxDocumentSize) {
return false;
}
if (ok != that.ok) {
return false;
}
if (!address.equals(that.address)) {
return false;
}
if (!arbiters.equals(that.arbiters)) {
return false;
}
if (!Objects.equals(canonicalAddress, that.canonicalAddress)) {
return false;
}
if (!hosts.equals(that.hosts)) {
return false;
}
if (!passives.equals(that.passives)) {
return false;
}
if (!Objects.equals(primary, that.primary)) {
return false;
}
if (!Objects.equals(setName, that.setName)) {
return false;
}
if (state != that.state) {
return false;
}
if (!tagSet.equals(that.tagSet)) {
return false;
}
if (type != that.type) {
return false;
}
if (minWireVersion != that.minWireVersion) {
return false;
}
if (maxWireVersion != that.maxWireVersion) {
return false;
}
if (!Objects.equals(electionId, that.electionId)) {
return false;
}
if (!Objects.equals(setVersion, that.setVersion)) {
return false;
}
if (!Objects.equals(topologyVersion, that.topologyVersion)) {
return false;
}
if (!Objects.equals(lastWriteDate, that.lastWriteDate)) {
return false;
}
if (lastUpdateTimeNanos != that.lastUpdateTimeNanos) {
return false;
}
if (!Objects.equals(logicalSessionTimeoutMinutes, that.logicalSessionTimeoutMinutes)) {
return false;
}
if (helloOk != that.helloOk) {
return false;
}
// Compare class equality and message as exceptions rarely override equals
Class thisExceptionClass = exception != null ? exception.getClass() : null;
Class thatExceptionClass = that.exception != null ? that.exception.getClass() : null;
if (!Objects.equals(thisExceptionClass, thatExceptionClass)) {
return false;
}
String thisExceptionMessage = exception != null ? exception.getMessage() : null;
String thatExceptionMessage = that.exception != null ? that.exception.getMessage() : null;
if (!Objects.equals(thisExceptionMessage, thatExceptionMessage)) {
return false;
}
return true;
}
@Override
public int hashCode() {
int result = address.hashCode();
result = 31 * result + type.hashCode();
result = 31 * result + (canonicalAddress != null ? canonicalAddress.hashCode() : 0);
result = 31 * result + hosts.hashCode();
result = 31 * result + passives.hashCode();
result = 31 * result + arbiters.hashCode();
result = 31 * result + (primary != null ? primary.hashCode() : 0);
result = 31 * result + maxDocumentSize;
result = 31 * result + tagSet.hashCode();
result = 31 * result + (setName != null ? setName.hashCode() : 0);
result = 31 * result + (electionId != null ? electionId.hashCode() : 0);
result = 31 * result + (setVersion != null ? setVersion.hashCode() : 0);
result = 31 * result + (topologyVersion != null ? topologyVersion.hashCode() : 0);
result = 31 * result + (lastWriteDate != null ? lastWriteDate.hashCode() : 0);
result = 31 * result + (int) (lastUpdateTimeNanos ^ (lastUpdateTimeNanos >>> 32));
result = 31 * result + (ok ? 1 : 0);
result = 31 * result + state.hashCode();
result = 31 * result + minWireVersion;
result = 31 * result + maxWireVersion;
result = 31 * result + (logicalSessionTimeoutMinutes != null ? logicalSessionTimeoutMinutes.hashCode() : 0);
result = 31 * result + (helloOk ? 1 : 0);
result = 31 * result + (exception == null ? 0 : exception.getClass().hashCode());
result = 31 * result + (exception == null ? 0 : exception.getMessage().hashCode());
return result;
}
@Override
public String toString() {
return "ServerDescription{"
+ "address=" + address
+ ", type=" + type
+ ", state=" + state
+ (state == CONNECTED
?
", ok=" + ok
+ ", minWireVersion=" + minWireVersion
+ ", maxWireVersion=" + maxWireVersion
+ ", maxDocumentSize=" + maxDocumentSize
+ ", logicalSessionTimeoutMinutes=" + logicalSessionTimeoutMinutes
+ ", roundTripTimeNanos=" + roundTripTimeNanos
: "")
+ (isReplicaSetMember()
?
", setName='" + setName + '\''
+ ", canonicalAddress=" + canonicalAddress
+ ", hosts=" + hosts
+ ", passives=" + passives
+ ", arbiters=" + arbiters
+ ", primary='" + primary + '\''
+ ", tagSet=" + tagSet
+ ", electionId=" + electionId
+ ", setVersion=" + setVersion
+ ", topologyVersion=" + topologyVersion
+ ", lastWriteDate=" + lastWriteDate
+ ", lastUpdateTimeNanos=" + lastUpdateTimeNanos
: "")
+ (exception == null ? "" : ", exception=" + translateExceptionToString())
+ '}';
}
/**
* Returns a short, pretty description for this ServerDescription.
*
* @return a String containing the most pertinent information about this ServerDescription
*/
public String getShortDescription() {
return "{"
+ "address=" + address
+ ", type=" + type
+ (!tagSet.iterator().hasNext() ? "" : ", " + tagSet)
+ (state == CONNECTED ? (", roundTripTime=" + getRoundTripFormattedInMilliseconds() + " ms") : "")
+ ", state=" + state
+ (exception == null ? "" : ", exception=" + translateExceptionToString())
+ '}';
}
private String translateExceptionToString() {
StringBuilder builder = new StringBuilder();
builder.append("{");
builder.append(exception);
builder.append("}");
Throwable cur = exception.getCause();
while (cur != null) {
builder.append(", caused by ");
builder.append("{");
builder.append(cur);
builder.append("}");
cur = cur.getCause();
}
return builder.toString();
}
private String getRoundTripFormattedInMilliseconds() {
return DecimalFormatHelper.format("#0.0", roundTripTimeNanos / 1000.0 / 1000.0);
}
ServerDescription(final Builder builder) {
address = notNull("address", builder.address);
type = notNull("type", builder.type);
state = notNull("state", builder.state);
canonicalAddress = builder.canonicalAddress;
hosts = builder.hosts;
passives = builder.passives;
arbiters = builder.arbiters;
primary = builder.primary;
maxDocumentSize = builder.maxDocumentSize;
tagSet = builder.tagSet;
setName = builder.setName;
roundTripTimeNanos = builder.roundTripTimeNanos;
ok = builder.ok;
minWireVersion = builder.minWireVersion;
maxWireVersion = builder.maxWireVersion;
electionId = builder.electionId;
setVersion = builder.setVersion;
topologyVersion = builder.topologyVersion;
lastWriteDate = builder.lastWriteDate;
lastUpdateTimeNanos = builder.lastUpdateTimeNanos;
logicalSessionTimeoutMinutes = builder.logicalSessionTimeoutMinutes;
helloOk = builder.helloOk;
exception = builder.exception;
}
}