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/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch 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.plugins;
import joptsimple.OptionSet;
import org.elasticsearch.cli.SettingCommand;
import org.elasticsearch.cli.Terminal;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.env.Environment;
import org.elasticsearch.node.internal.InternalSettingsPreparer;
import java.io.IOException;
import java.nio.file.DirectoryStream;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Map;
/**
* A command for the plugin cli to list plugins installed in elasticsearch.
*/
class ListPluginsCommand extends SettingCommand {
ListPluginsCommand() {
super("Lists installed elasticsearch plugins");
}
@Override
protected void execute(Terminal terminal, OptionSet options, Map<String, String> settings) throws Exception {
final Environment env = InternalSettingsPreparer.prepareEnvironment(Settings.EMPTY, terminal, settings);
if (Files.exists(env.pluginsFile()) == false) {
throw new IOException("Plugins directory missing: " + env.pluginsFile());
}
terminal.println(Terminal.Verbosity.VERBOSE, "Plugins directory: " + env.pluginsFile());
final List<Path> plugins = new ArrayList<>();
try (DirectoryStream<Path> paths = Files.newDirectoryStream(env.pluginsFile())) {
for (Path plugin : paths) {
plugins.add(plugin);
}
}
Collections.sort(plugins);
for (final Path plugin : plugins) {
terminal.println(plugin.getFileName().toString());
PluginInfo info = PluginInfo.readFromProperties(env.pluginsFile().resolve(plugin.toAbsolutePath()));
terminal.println(Terminal.Verbosity.VERBOSE, info.toString());
}
}
}
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