// Copyright 2017 JanusGraph Authors
//
// 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 org.janusgraph;
import org.janusgraph.core.JanusGraphFactory;
import org.janusgraph.core.JanusGraph;
import org.janusgraph.diskstorage.configuration.BasicConfiguration;
import org.janusgraph.diskstorage.configuration.ModifiableConfiguration;
import org.janusgraph.diskstorage.configuration.ReadConfiguration;
import org.janusgraph.diskstorage.configuration.WriteConfiguration;
import static org.janusgraph.graphdb.configuration.GraphDatabaseConfiguration.*;
import org.janusgraph.util.system.IOUtils;
import org.apache.commons.lang.StringUtils;
import java.io.File;
import java.time.Duration;
public class StorageSetup {
//############ UTILITIES #############
public static final String getHomeDir(String subdir) {
String homedir = System.getProperty("janusgraph.testdir");
if (null == homedir) {
homedir = "target" + File.separator + "db";
}
if (subdir!=null && !StringUtils.isEmpty(subdir)) homedir += File.separator + subdir;
File homefile = new File(homedir);
if (!homefile.exists()) homefile.mkdirs();
return homedir;
}
public static final File getHomeDirFile() {
return getHomeDirFile(null);
}
public static final File getHomeDirFile(String subdir) {
return new File(getHomeDir(subdir));
}
public static final void deleteHomeDir() {
deleteHomeDir(null);
}
public static final void deleteHomeDir(String subdir) {
File homeDirFile = getHomeDirFile(subdir);
// Make directory if it doesn't exist
if (!homeDirFile.exists())
homeDirFile.mkdirs();
boolean success = IOUtils.deleteFromDirectory(homeDirFile);
if (!success) throw new IllegalStateException("Could not remove " + homeDirFile);
}
public static ModifiableConfiguration getInMemoryConfiguration() {
return buildGraphConfiguration().set(STORAGE_BACKEND, "inmemory").set(IDAUTHORITY_WAIT, Duration.ZERO);
}
public static JanusGraph getInMemoryGraph() {
return JanusGraphFactory.open(getInMemoryConfiguration());
}
public static WriteConfiguration addPermanentCache(ModifiableConfiguration conf) {
conf.set(DB_CACHE, true);
conf.set(DB_CACHE_TIME,0l);
return conf.getConfiguration();
}
public static ModifiableConfiguration getConfig(WriteConfiguration config) {
return new ModifiableConfiguration(ROOT_NS,config, BasicConfiguration.Restriction.NONE);
}
public static BasicConfiguration getConfig(ReadConfiguration config) {
return new BasicConfiguration(ROOT_NS,config, BasicConfiguration.Restriction.NONE);
}
}