package com.couchbase.client.java;
import com.couchbase.client.core.CouchbaseException;
import java.net.InetSocketAddress;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
* Implements a {@link ConnectionString}.
*
* @author Michael Nitschinger
* @since 2.0
*/
public class ConnectionString {
public static final String DEFAULT_SCHEME = "couchbase://";
private final Scheme scheme;
private final List<InetSocketAddress> hosts;
private final Map<String, String> params;
protected ConnectionString(final String input) {
this.scheme = parseScheme(input);
this.hosts = parseHosts(input);
this.params = parseParams(input);
}
public static ConnectionString create(final String input) {
return new ConnectionString(input);
}
public static ConnectionString fromHostnames(final List<String> hostnames) {
StringBuilder sb = new StringBuilder(DEFAULT_SCHEME);
for (int i = 0; i < hostnames.size(); i++) {
sb.append(hostnames.get(i));
if (i < hostnames.size()-1) {
sb.append(",");
}
}
return create(sb.toString());
}
static Scheme parseScheme(final String input) {
if (input.startsWith("couchbase://")) {
return Scheme.COUCHBASE;
} else if (input.startsWith("couchbases://")) {
return Scheme.COUCHBASES;
} else if (input.startsWith("http://")) {
return Scheme.HTTP;
} else {
throw new CouchbaseException("Could not parse Scheme of connection string: " + input);
}
}
static List<InetSocketAddress> parseHosts(final String input) {
String schemeRemoved = input.replaceAll("\\w+://", "");
String paramsRemoved = schemeRemoved.replaceAll("\\?.*", "");
String[] splitted = paramsRemoved.split(",");
List<InetSocketAddress> hosts = new ArrayList<InetSocketAddress>();
for (int i = 0; i < splitted.length; i++) {
if (splitted[i] == null || splitted[i].isEmpty()) {
continue;
}
String[] parts = splitted[i].split(":");
if (parts.length == 1) {
hosts.add(InetSocketAddress.createUnresolved(parts[0], 0));
} else {
hosts.add(InetSocketAddress.createUnresolved(parts[0], Integer.parseInt(parts[1])));
}
}
return hosts;
}
static Map<String, String> parseParams(final String input) {
try {
String[] parts = input.split("\\?");
Map<String, String> params = new HashMap<String, String>();
if (parts.length > 1) {
String found = parts[1];
String[] exploded = found.split("&");
for (int i = 0; i < exploded.length; i++) {
String[] pair = exploded[i].split("=");
params.put(pair[0], pair[1]);
}
}
return params;
} catch(Exception ex) {
throw new CouchbaseException("Could not parse Params of connection string: " + input, ex);
}
}
public Scheme scheme() {
return scheme;
}
public List<InetSocketAddress> hosts() {
return hosts;
}
public Map<String, String> params() {
return params;
}
public static enum Scheme {
HTTP,
COUCHBASE,
COUCHBASES
}
@Override
public String toString() {
final StringBuilder sb = new StringBuilder("ConnectionString{");
sb.append("scheme=").append(scheme);
sb.append(", hosts=").append(hosts);
sb.append(", params=").append(params);
sb.append('}');
return sb.toString();
}
}