src/java.management.rest/share/classes/com/oracle/jmx/remote/rest/http/MBeanServerCollectionResource.java
author hb
Thu, 28 Dec 2017 14:43:14 +0530
branchjmx-rest-api
changeset 55998 54779691e11f
parent 55997 f881344569d9
child 56006 352a4f213fc6
permissions -rw-r--r--
Code cleanup - PlatformMBeanServer, MBeanServerResource Added remaining HTTP methods to RESTresource
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/*
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 * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.  Oracle designates this
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 * particular file as subject to the "Classpath" exception as provided
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 * by Oracle in the LICENSE file that accompanied this code.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 */
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package com.oracle.jmx.remote.rest.http;
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import com.oracle.jmx.remote.rest.json.JSONArray;
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import com.oracle.jmx.remote.rest.json.JSONObject;
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import com.sun.net.httpserver.HttpExchange;
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import com.sun.net.httpserver.HttpServer;
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import javax.management.remote.rest.PlatformRestAdapter;
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import java.io.UnsupportedEncodingException;
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import java.net.HttpURLConnection;
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import java.util.List;
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/**
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 * This class handles all the HTTP requests for the base URL
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 * for REST adapter.
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 */
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public class MBeanServerCollectionResource implements RestResource {
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    private final List<MBeanServerResource> restAdapters;
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    private final int pageSize = 5;
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    public MBeanServerCollectionResource(List<MBeanServerResource> adapters, HttpServer server) {
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        this.restAdapters = adapters;
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        server.createContext("/jmx/servers", this);
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    }
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    @Override
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    public HttpResponse doGet(HttpExchange exchange) {
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        try {
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            JSONObject _links = HttpUtil.getPaginationLinks(exchange, restAdapters, pageSize);
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            List<MBeanServerResource> filteredList = HttpUtil.filterByPage(exchange, restAdapters, pageSize);
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            if (filteredList == null) {
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                return HttpResponse.OK;
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            }
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            final String path = PlatformRestAdapter.getDomain() +
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                    exchange.getRequestURI().getPath().replaceAll("/$", "");
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            JSONObject root = new JSONObject();
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            if (_links != null && !_links.isEmpty()) {
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                root.put("_links", _links);
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            }
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            root.put("mBeanServerCount", Integer.toString(restAdapters.size()));
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            JSONArray list = new JSONArray();
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            filteredList.stream().map((adapter) -> {
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                JSONObject result = new JSONObject();
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                result.put("name", adapter.getContext());
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                result.put("href", path + "/" + adapter.getContext());
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                return result;
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            }).forEachOrdered((result) -> {
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                list.add(result);
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            });
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            root.put("mBeanServers", list);
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            return new HttpResponse(HttpURLConnection.HTTP_OK, root.toJsonString());
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        } catch (UnsupportedEncodingException e) {
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            return new HttpResponse(HttpResponse.BAD_REQUEST,
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                    HttpUtil.getRequestCharset(exchange) + " is not supported");
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        }
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    }
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}