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// Copyright (C) 2012 The Android Open Source Project
//
// 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 com.google.gerrit.server.plugins;
import com.google.common.base.Strings;
import com.google.common.collect.Lists;
import com.google.common.collect.Maps;
import com.google.gerrit.common.data.GlobalCapability;
import com.google.gerrit.extensions.annotations.RequiresCapability;
import com.google.gerrit.extensions.restapi.AuthException;
import com.google.gerrit.extensions.restapi.BadRequestException;
import com.google.gerrit.extensions.restapi.ResourceConflictException;
import com.google.gerrit.extensions.restapi.RestReadView;
import com.google.gerrit.extensions.restapi.TopLevelResource;
import com.google.gerrit.extensions.restapi.Url;
import com.google.gerrit.server.OutputFormat;
import com.google.gson.JsonElement;
import com.google.gson.reflect.TypeToken;
import com.google.inject.Inject;
import org.kohsuke.args4j.Option;
import java.io.BufferedWriter;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.io.UnsupportedEncodingException;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
import java.util.Map;
/** List the installed plugins. */
@RequiresCapability(GlobalCapability.ADMINISTRATE_SERVER)
public class ListPlugins implements RestReadView<TopLevelResource> {
private final PluginLoader pluginLoader;
@Deprecated
@Option(name = "--format", usage = "(deprecated) output format")
private OutputFormat format = OutputFormat.TEXT;
@Option(name = "--all", aliases = {"-a"}, usage = "List all plugins, including disabled plugins")
private boolean all;
@Inject
protected ListPlugins(PluginLoader pluginLoader) {
this.pluginLoader = pluginLoader;
}
public OutputFormat getFormat() {
return format;
}
public ListPlugins setFormat(OutputFormat fmt) {
this.format = fmt;
return this;
}
@Override
public Object apply(TopLevelResource resource) throws AuthException,
BadRequestException, ResourceConflictException, Exception {
format = OutputFormat.JSON;
return display(null);
}
public JsonElement display(OutputStream displayOutputStream)
throws UnsupportedEncodingException {
PrintWriter stdout = null;
if (displayOutputStream != null) {
try {
stdout = new PrintWriter(new BufferedWriter(
new OutputStreamWriter(displayOutputStream, "UTF-8")));
} catch (UnsupportedEncodingException e) {
throw new RuntimeException("JVM lacks UTF-8 encoding", e);
}
}
Map<String, PluginInfo> output = Maps.newTreeMap();
List<Plugin> plugins = Lists.newArrayList(pluginLoader.getPlugins(all));
Collections.sort(plugins, new Comparator<Plugin>() {
@Override
public int compare(Plugin a, Plugin b) {
return a.getName().compareTo(b.getName());
}
});
if (!format.isJson()) {
stdout.format("%-30s %-10s %-8s\n", "Name", "Version", "Status");
stdout.print("-------------------------------------------------------------------------------\n");
}
for (Plugin p : plugins) {
PluginInfo info = new PluginInfo(p);
if (format.isJson()) {
output.put(p.getName(), info);
} else {
stdout.format("%-30s %-10s %-8s\n", p.getName(),
Strings.nullToEmpty(info.version),
p.isDisabled() ? "DISABLED" : "ENABLED");
}
}
if (stdout == null) {
return OutputFormat.JSON.newGson().toJsonTree(
output,
new TypeToken<Map<String, Object>>() {}.getType());
} else if (format.isJson()) {
format.newGson().toJson(output,
new TypeToken<Map<String, PluginInfo>>() {}.getType(), stdout);
stdout.print('\n');
}
stdout.flush();
return null;
}
static class PluginInfo {
final String kind = "gerritcodereview#plugin";
String id;
String version;
Boolean disabled;
PluginInfo(Plugin p) {
id = Url.encode(p.getName());
version = p.getVersion();
disabled = p.isDisabled() ? true : null;
}
}
}
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