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Elasticsearch subproject :server
/*
* Licensed to Elastic Search and Shay Banon under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. Elastic Search licenses this
* file to you 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.elasticsearch.env;
import org.elasticsearch.cluster.ClusterName;
import org.elasticsearch.common.Classes;
import org.elasticsearch.common.io.Streams;
import org.elasticsearch.common.settings.Settings;
import java.io.File;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.MalformedURLException;
import java.net.URL;
import static org.elasticsearch.common.Strings.*;
import static org.elasticsearch.common.settings.ImmutableSettings.Builder.*;
/**
* The environment of where things exists.
*
* @author kimchy (shay.banon)
*/
public class Environment {
private final File homeFile;
private final File workFile;
private final File workWithClusterFile;
private final File dataFile;
private final File dataWithClusterFile;
private final File configFile;
private final File pluginsFile;
private final File logsFile;
public Environment() {
this(EMPTY_SETTINGS);
}
public Environment(Settings settings) {
if (settings.get("path.home") != null) {
homeFile = new File(cleanPath(settings.get("path.home")));
} else {
homeFile = new File(System.getProperty("user.dir"));
}
if (settings.get("path.conf") != null) {
configFile = new File(cleanPath(settings.get("path.conf")));
} else {
configFile = new File(homeFile, "config");
}
if (settings.get("path.plugins") != null) {
pluginsFile = new File(cleanPath(settings.get("path.plugins")));
} else {
pluginsFile = new File(homeFile, "plugins");
}
if (settings.get("path.work") != null) {
workFile = new File(cleanPath(settings.get("path.work")));
} else {
workFile = new File(homeFile, "work");
}
workWithClusterFile = new File(workFile, ClusterName.clusterNameFromSettings(settings).value());
if (settings.get("path.data") != null) {
dataFile = new File(cleanPath(settings.get("path.data")));
} else {
dataFile = new File(homeFile, "data");
}
dataWithClusterFile = new File(dataFile, ClusterName.clusterNameFromSettings(settings).value());
if (settings.get("path.logs") != null) {
logsFile = new File(cleanPath(settings.get("path.logs")));
} else {
logsFile = new File(homeFile, "logs");
}
}
/**
* The home of the installation.
*/
public File homeFile() {
return homeFile;
}
/**
* The work location.
*/
public File workFile() {
return workFile;
}
/**
* The work location with the cluster name as a sub directory.
*/
public File workWithClusterFile() {
return workWithClusterFile;
}
/**
* The data location.
*/
public File dataFile() {
return dataFile;
}
/**
* The data location with the cluster name as a sub directory.
*/
public File dataWithClusterFile() {
return dataWithClusterFile;
}
/**
* The config location.
*/
public File configFile() {
return configFile;
}
public File pluginsFile() {
return pluginsFile;
}
public File logsFile() {
return logsFile;
}
public String resolveConfigAndLoadToString(String path) throws FailedToResolveConfigException, IOException {
return Streams.copyToString(new InputStreamReader(resolveConfig(path).openStream(), "UTF-8"));
}
public URL resolveConfig(String path) throws FailedToResolveConfigException {
// first, try it as a path on the file system
File f1 = new File(path);
if (f1.exists()) {
try {
return f1.toURI().toURL();
} catch (MalformedURLException e) {
throw new FailedToResolveConfigException("Failed to resolve path [" + f1 + "]", e);
}
}
if (path.startsWith("/")) {
path = path.substring(1);
}
// next, try it relative to the config location
File f2 = new File(configFile, path);
if (f2.exists()) {
try {
return f2.toURI().toURL();
} catch (MalformedURLException e) {
throw new FailedToResolveConfigException("Failed to resolve path [" + f2 + "]", e);
}
}
// try and load it from the classpath directly
URL resource = Classes.getDefaultClassLoader().getResource(path);
if (resource != null) {
return resource;
}
// try and load it from the classpath with config/ prefix
if (!path.startsWith("config/")) {
resource = Classes.getDefaultClassLoader().getResource("config/" + path);
if (resource != null) {
return resource;
}
}
throw new FailedToResolveConfigException("Failed to resolve config path [" + path + "], tried file path [" + f1 + "], path file [" + f2 + "], and classpath");
}
}