MongoProperties

package com.jfa.data.mongodb;

import com.mongodb.*;
import com.mongodb.MongoClientOptions.Builder;
import org.springframework.boot.context.properties.ConfigurationProperties;

import java.net.UnknownHostException;
import java.util.Arrays;
import java.util.List;

/**
* Configuration properties for Mongo.
*
* @author Dave Syer
* @author Phillip Webb
* @author Josh Long
* @author Andy Wilkinson
*/
@ConfigurationProperties(prefix = "spring.data.mongodb")
public class MongoProperties {

private static final int DEFAULT_PORT = 27017;

/**
* Mongo server host.
*/
private String host;

/**
* Mongo server port.
*/
private Integer port = null;

/**
* Mongo database URI. When set, host and port are ignored.
*/
private String uri = "mongodb://localhost/test";

/**
* Database name.
*/
private String database;

/**
* Authentication database name.
*/
private String authenticationDatabase;

/**
* GridFS database name.
*/
private String gridFsDatabase;

/**
* Login user of the mongo server.
*/
private String username;

/**
* Login password of the mongo server.
*/
private char[] password;

public String getHost() {
return this.host;
}

public void setHost(String host) {
this.host = host;
}

public String getDatabase() {
return this.database;
}

public void setDatabase(String database) {
this.database = database;
}

public String getAuthenticationDatabase() {
return this.authenticationDatabase;
}

public void setAuthenticationDatabase(String authenticationDatabase) {
this.authenticationDatabase = authenticationDatabase;
}

public String getUsername() {
return this.username;
}

public void setUsername(String username) {
this.username = username;
}

public char[] getPassword() {
return this.password;
}

public void setPassword(char[] password) {
this.password = password;
}

public void clearPassword() {
if (this.password == null) {
return;
}
for (int i = 0; i < this.password.length; i++) {
this.password[i] = 0;
}
}

public String getUri() {
return this.uri;
}

public void setUri(String uri) {
this.uri = uri;
}

public Integer getPort() {
return this.port;
}

public void setPort(Integer port) {
this.port = port;
}

public String getGridFsDatabase() {
return this.gridFsDatabase;
}

public void setGridFsDatabase(String gridFsDatabase) {
this.gridFsDatabase = gridFsDatabase;
}

public String getMongoClientDatabase() {
if (this.database != null) {
return this.database;
}
return new MongoClientURI(this.uri).getDatabase();
}

public MongoClient createMongoClient(MongoClientOptions options)
throws UnknownHostException {
try {
if (hasCustomAddress() || hasCustomCredentials()) {
if (options == null) {
options = MongoClientOptions.builder().build();
}
List<MongoCredential> credentials = null;
if (hasCustomCredentials()) {
String database = this.authenticationDatabase == null ? getMongoClientDatabase()
: this.authenticationDatabase;
credentials = Arrays.asList(MongoCredential.createScramSha1Credential(
this.username, database, this.password));
}
String host = this.host == null ? "localhost" : this.host;
int port = this.port == null ? DEFAULT_PORT : this.port;
return new MongoClient(Arrays.asList(new ServerAddress(host, port)),
credentials, options);
}
// The options and credentials are in the URI
return new MongoClient(new MongoClientURI(this.uri, builder(options)));
} finally {
clearPassword();
}
}

private boolean hasCustomAddress() {
return this.host != null || this.port != null;
}

private boolean hasCustomCredentials() {
return this.username != null && this.password != null;
}

private Builder builder(MongoClientOptions options) {
Builder builder = MongoClientOptions.builder();
if (options != null) {
builder.alwaysUseMBeans(options.isAlwaysUseMBeans());
builder.connectionsPerHost(options.getConnectionsPerHost());
builder.connectTimeout(options.getConnectTimeout());
builder.cursorFinalizerEnabled(options.isCursorFinalizerEnabled());
builder.dbDecoderFactory(options.getDbDecoderFactory());
builder.dbEncoderFactory(options.getDbEncoderFactory());
builder.description(options.getDescription());
builder.maxWaitTime(options.getMaxWaitTime());
builder.readPreference(options.getReadPreference());
builder.socketFactory(options.getSocketFactory());
builder.socketKeepAlive(options.isSocketKeepAlive());
builder.socketTimeout(options.getSocketTimeout());
builder.threadsAllowedToBlockForConnectionMultiplier(options
.getThreadsAllowedToBlockForConnectionMultiplier());
builder.writeConcern(options.getWriteConcern());
}
return builder;
}

}