/*
* Copyright (C) 2011, Google Inc.
* and other copyright owners as documented in the project's IP log.
*
* This program and the accompanying materials are made available
* under the terms of the Eclipse Distribution License v1.0 which
* accompanies this distribution, is reproduced below, and is
* available at http://www.eclipse.org/org/documents/edl-v10.php
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
*
* - Neither the name of the Eclipse Foundation, Inc. nor the
* names of its contributors may be used to endorse or promote
* products derived from this software without specific prior
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*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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package org.eclipse.jgit.storage.cassandra;
import java.net.URISyntaxException;
import java.util.concurrent.ExecutorService;
import me.prettyprint.cassandra.service.CassandraHostConfigurator;
import me.prettyprint.hector.api.Cluster;
import me.prettyprint.hector.api.factory.HFactory;
import org.eclipse.jgit.storage.dht.spi.util.ExecutorTools;
import org.eclipse.jgit.transport.URIish;
/** Constructs a {@link CassandraDatabase} instance. */
public class CassandraDatabaseBuilder {
private String hosts;
private String clusterName;
private Cluster cluster;
private boolean dataCenterAware;
private String keyspaceName;
private ExecutorService executorService;
public CassandraDatabaseBuilder setURI(final String url)
throws URISyntaxException {
URIish u = new URIish(url);
if (!"git+cassandra".equals(u.getScheme()))
throw new IllegalArgumentException();
String host = u.getHost();
if (host != null) {
int port = u.getPort();
if (port == -1)
port = 9160;
setHosts(host + ":" + port);
}
String path = u.getPath();
if (path.startsWith("/"))
path = path.substring(1);
int endCluster = path.indexOf('/');
int endKeyspace = path.indexOf('/', endCluster + 1);
if (endKeyspace < 0)
endKeyspace = path.length();
setClusterName(path.substring(0, endCluster));
setKeyspaceName(path.substring(endCluster + 1, endKeyspace));
return this;
}
public String getHosts() {
return hosts;
}
public CassandraDatabaseBuilder setHosts(String hosts) {
this.hosts = hosts;
this.cluster = null;
return this;
}
public String getClusterName() {
return clusterName;
}
public CassandraDatabaseBuilder setClusterName(String clusterName) {
this.clusterName = clusterName;
this.cluster = null;
return this;
}
public Cluster getCluster() {
return cluster;
}
public CassandraDatabaseBuilder setCluster(Cluster cluster) {
this.cluster = cluster;
return this;
}
public boolean isClusterDataCenterAware() {
return dataCenterAware;
}
public CassandraDatabaseBuilder setClusterDataCenterAware(boolean aware) {
dataCenterAware = aware;
return this;
}
public String getKeyspaceName() {
return keyspaceName;
}
public CassandraDatabaseBuilder setKeyspaceName(String keyspaceName) {
this.keyspaceName = keyspaceName;
return this;
}
public ExecutorService getExecutorService() {
return executorService;
}
public CassandraDatabaseBuilder setExecutorService(
ExecutorService executorService) {
this.executorService = executorService;
return this;
}
/** @return create and return the database connection. */
public CassandraDatabase build() {
if (cluster == null) {
if (clusterName == null)
throw new IllegalArgumentException("No cluster name set");
cluster = HFactory.getCluster(clusterName);
if (cluster == null) {
if (hosts == null)
throw new IllegalArgumentException("No hosts set");
CassandraHostConfigurator cfg = new CassandraHostConfigurator();
cfg.setHosts(hosts);
cluster = HFactory.getOrCreateCluster(clusterName, cfg);
}
}
if (keyspaceName == null)
throw new IllegalArgumentException("No keyspace name set");
if (executorService == null)
executorService = ExecutorTools.getDefaultExecutorService();
return new CassandraDatabase(this);
}
}