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Elasticsearch subproject :server
/*
* 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.action.admin.cluster.node.info;
import org.elasticsearch.Version;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.common.io.stream.Streamable;
import org.elasticsearch.common.xcontent.ToXContent;
import org.elasticsearch.common.xcontent.XContentBuilder;
import org.elasticsearch.plugins.PluginInfo;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
/**
* Information about plugins and modules
*/
public class PluginsAndModules implements Streamable, ToXContent {
private List plugins;
private List modules;
public PluginsAndModules() {
plugins = new ArrayList<>();
modules = new ArrayList<>();
}
/**
* Returns an ordered list based on plugins name
*/
public List getPluginInfos() {
List plugins = new ArrayList<>(this.plugins);
Collections.sort(plugins, new Comparator() {
@Override
public int compare(PluginInfo p1, PluginInfo p2) {
return p1.getName().compareTo(p2.getName());
}
});
return plugins;
}
/**
* Returns an ordered list based on modules name
*/
public List getModuleInfos() {
List modules = new ArrayList<>(this.modules);
Collections.sort(modules, new Comparator() {
@Override
public int compare(PluginInfo p1, PluginInfo p2) {
return p1.getName().compareTo(p2.getName());
}
});
return modules;
}
public void addPlugin(PluginInfo info) {
plugins.add(info);
}
public void addModule(PluginInfo info) {
modules.add(info);
}
@Override
public void readFrom(StreamInput in) throws IOException {
if (plugins.isEmpty() == false || modules.isEmpty() == false) {
throw new IllegalStateException("instance is already populated");
}
int plugins_size = in.readInt();
for (int i = 0; i < plugins_size; i++) {
plugins.add(PluginInfo.readFromStream(in));
}
if (in.getVersion().onOrAfter(Version.V_2_2_0)) {
int modules_size = in.readInt();
for (int i = 0; i < modules_size; i++) {
modules.add(PluginInfo.readFromStream(in));
}
}
}
@Override
public void writeTo(StreamOutput out) throws IOException {
if (out.getVersion().before(Version.V_2_2_0)) {
out.writeInt(plugins.size() + modules.size());
for (PluginInfo plugin : getPluginInfos()) {
plugin.writeTo(out);
}
for (PluginInfo module : getModuleInfos()) {
module.writeTo(out);
}
}
else {
out.writeInt(plugins.size());
for (PluginInfo plugin : getPluginInfos()) {
plugin.writeTo(out);
}
out.writeInt(modules.size());
for (PluginInfo module : getModuleInfos()) {
module.writeTo(out);
}
}
}
@Override
public XContentBuilder toXContent(XContentBuilder builder, Params params) throws IOException {
builder.startArray("plugins");
for (PluginInfo pluginInfo : getPluginInfos()) {
pluginInfo.toXContent(builder, params);
}
builder.endArray();
// TODO: not ideal, make a better api for this (e.g. with jar metadata, and so on)
builder.startArray("modules");
for (PluginInfo moduleInfo : getModuleInfos()) {
moduleInfo.toXContent(builder, params);
}
builder.endArray();
return builder;
}
}