| /* |
| * Copyright (c) 2016, 2018, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package jdk.management.jfr; |
| |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import javax.management.openmbean.CompositeData; |
| import javax.management.openmbean.TabularData; |
| |
| import jdk.jfr.Configuration; |
| |
| |
| /** |
| * Management representation of a {@code Configuration}. |
| * |
| * @see Configuration |
| * |
| * @since 9 |
| */ |
| public final class ConfigurationInfo { |
| private final Map<String, String> settings; |
| private final String name; |
| private final String label; |
| private final String description; |
| private final String provider; |
| private final String contents; |
| |
| ConfigurationInfo(Configuration config) { |
| this.settings = config.getSettings(); |
| this.name = config.getName(); |
| this.label = config.getLabel(); |
| this.description = config.getDescription(); |
| this.provider = config.getProvider(); |
| this.contents = config.getContents(); |
| } |
| |
| private ConfigurationInfo(CompositeData cd) { |
| this.settings = createMap(cd.get("settings")); |
| this.name = (String) cd.get("name"); |
| this.label = (String) cd.get("label"); |
| this.description = (String) cd.get("description"); |
| this.provider = (String) cd.get("provider"); |
| this.contents = (String) cd.get("contents"); |
| } |
| |
| private static Map<String, String> createMap(Object o) { |
| if (o instanceof TabularData) { |
| TabularData td = (TabularData) o; |
| Collection<?> values = td.values(); |
| Map<String, String> map = new HashMap<>(values.size()); |
| for (Object value : td.values()) { |
| if (value instanceof CompositeData) { |
| CompositeData cdRow = (CompositeData) value; |
| Object k = cdRow.get("key"); |
| Object v = cdRow.get("value"); |
| if (k instanceof String && v instanceof String) { |
| map.put((String) k, (String) v); |
| } |
| } |
| } |
| return Collections.unmodifiableMap(map); |
| } |
| return Collections.emptyMap(); |
| } |
| |
| /** |
| * Returns the provider of the configuration associated with this |
| * {@code ConfigurationInfo} (for example, {@code "OpenJDK"}). |
| * |
| * @return the provider, or {@code null} if doesn't exist |
| * |
| * @see Configuration#getProvider() |
| */ |
| public String getProvider() { |
| return provider; |
| } |
| |
| /** |
| * Returns the textual representation of the configuration associated with |
| * this {@code ConfigurationInfo}, typically the contents of the |
| * configuration file that was used to create the configuration. |
| * |
| * @return contents, or {@code null} if doesn't exist |
| * |
| * @see Configuration#getContents() |
| */ |
| public String getContents() { |
| return contents; |
| } |
| |
| /** |
| * Returns the settings for the configuration associated with this |
| * {@code ConfigurationInfo}. |
| * |
| * @return a {@code Map} with settings, not {@code null} |
| * |
| * @see Configuration#getSettings() |
| */ |
| public Map<String, String> getSettings() { |
| return settings; |
| } |
| |
| /** |
| * Returns the human-readable name (for example, {@code "Continuous"} or {@code "Profiling"}) for |
| * the configuration associated with this {@code ConfigurationInfo} |
| * |
| * @return the label, or {@code null} if doesn't exist |
| * |
| * @see Configuration#getLabel() |
| */ |
| public String getLabel() { |
| return label; |
| } |
| |
| /** |
| * Returns the name of the configuration associated with this |
| * {@code ConfigurationInfo} (for example, {@code "default"}). |
| * |
| * @return the name, or {@code null} if doesn't exist |
| * |
| * @see Configuration#getLabel() |
| */ |
| public String getName() { |
| return name; |
| } |
| |
| /** |
| * Returns a short sentence that describes the configuration associated with |
| * this {@code ConfigurationInfo} (for example, {@code "Low |
| * overhead configuration safe for continuous use in production |
| * environments"}. |
| * |
| * @return the description, or {@code null} if doesn't exist |
| */ |
| public String getDescription() { |
| return description; |
| } |
| |
| /** |
| * Returns a {@code ConfigurationInfo} object represented by the specified |
| * {@code CompositeData}. |
| * <p> |
| * The following table shows the required attributes that the specified {@code CompositeData} must contain. |
| * <blockquote> |
| * <table class="striped"> |
| * <caption>Required names and types for CompositeData</caption> |
| * <thead> |
| * <tr> |
| * <th scope="col" style="text-align:left">Name</th> |
| * <th scope="col" style="text-align:left">Type</th> |
| * </tr> |
| * </thead> |
| * <tbody> |
| * <tr> |
| * <th scope="row">name</th> |
| * <td>{@code String}</td> |
| * </tr> |
| * <tr> |
| * <th scope="row">label</th> |
| * <td>{@code String}</td> |
| * </tr> |
| * <tr> |
| * <th scope="row">description</th> |
| * <td>{@code String}</td> |
| * </tr> |
| * <tr> |
| * <th scope="row">provider</th> |
| * <td>{@code String}</td> |
| * </tr> |
| * <tr> |
| * <th scope="row">contents</th> |
| * <td>{@code String}</td> |
| * </tr> |
| * |
| * <tr> |
| * <th scope="row">settings</th> |
| * <td>{@code javax.management.openmbean.TabularData} with a |
| * {@code TabularType} with the keys {@code "key"} and {@code "value"}, both |
| * of the {@code String} type</td> |
| * </tr> |
| * </tbody> |
| * </table> |
| * </blockquote> |
| * |
| * @param cd {@code CompositeData} representing a {@code ConfigurationInfo} |
| * |
| * @throws IllegalArgumentException if {@code cd} does not represent a |
| * {@code ConfigurationInfo} with the required attributes |
| * |
| * @return a {@code ConfigurationInfo} object represented by {@code cd} if |
| * {@code cd} is not {@code null}, {@code null} otherwise |
| */ |
| public static ConfigurationInfo from(CompositeData cd) { |
| if (cd == null) { |
| return null; |
| } |
| return new ConfigurationInfo(cd); |
| } |
| |
| /** |
| * Returns a description of the configuration that is associated with this |
| * {@code ConfigurationInfo}. |
| * |
| * @return the description of the configuration, not {@code null} |
| */ |
| @Override |
| public String toString() { |
| Stringifier s = new Stringifier(); |
| s.add("name", name); |
| s.add("label", label); |
| s.add("description", description); |
| s.add("provider", provider); |
| return s.toString(); |
| } |
| } |