| /* |
| * Copyright (c) 2013, 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 sun.management.jdp; |
| |
| import java.io.IOException; |
| import java.util.HashMap; |
| import java.util.Map; |
| import java.util.Objects; |
| import java.util.UUID; |
| |
| /** |
| * A packet to broadcasts JMX URL |
| * |
| * Fields: |
| * |
| * <ul> |
| * <li>UUID - broadcast session ID, changed every time when we start/stop |
| * discovery service</li> |
| * <li>JMX_URL - URL to connect to JMX service</li> |
| * <li>MAIN_CLASS - optional name of main class, filled from sun.java.command stripped for |
| * security reason to first space</li> |
| * <li>INSTANCE_NAME - optional custom name of particular instance as provided by customer</li> |
| * </ul> |
| */ |
| public final class JdpJmxPacket |
| extends JdpGenericPacket |
| implements JdpPacket { |
| |
| /** |
| * Session ID |
| */ |
| public final static String UUID_KEY = "DISCOVERABLE_SESSION_UUID"; |
| /** |
| * Name of main class |
| */ |
| public final static String MAIN_CLASS_KEY = "MAIN_CLASS"; |
| /** |
| * JMX service URL |
| */ |
| public final static String JMX_SERVICE_URL_KEY = "JMX_SERVICE_URL"; |
| /** |
| * Name of Java instance |
| */ |
| public final static String INSTANCE_NAME_KEY = "INSTANCE_NAME"; |
| |
| private UUID id; |
| private String mainClass; |
| private String jmxServiceUrl; |
| private String instanceName; |
| |
| /** |
| * Create new instance from user provided data. Set mandatory fields |
| * |
| * @param id - java instance id |
| * @param jmxServiceUrl - JMX service url |
| */ |
| public JdpJmxPacket(UUID id, String jmxServiceUrl) { |
| this.id = id; |
| this.jmxServiceUrl = jmxServiceUrl; |
| } |
| |
| /** |
| * Create new instance from network data Parse packet and set fields. |
| * |
| * @param data - raw packet data as it came from a Net |
| * @throws JdpException |
| */ |
| public JdpJmxPacket(byte[] data) |
| throws JdpException { |
| JdpPacketReader reader; |
| |
| reader = new JdpPacketReader(data); |
| Map<String, String> p = reader.getDiscoveryDataAsMap(); |
| |
| String sId = p.get(UUID_KEY); |
| this.id = (sId == null) ? null : UUID.fromString(sId); |
| this.jmxServiceUrl = p.get(JMX_SERVICE_URL_KEY); |
| this.mainClass = p.get(MAIN_CLASS_KEY); |
| this.instanceName = p.get(INSTANCE_NAME_KEY); |
| } |
| |
| /** |
| * Set main class field |
| * |
| * @param mainClass - main class of running app |
| */ |
| public void setMainClass(String mainClass) { |
| this.mainClass = mainClass; |
| } |
| |
| /** |
| * Set instance name field |
| * |
| * @param instanceName - name of instance as provided by customer |
| */ |
| public void setInstanceName(String instanceName) { |
| this.instanceName = instanceName; |
| } |
| |
| /** |
| * @return id of discovery session |
| */ |
| public UUID getId() { |
| return id; |
| } |
| |
| /** |
| * |
| * @return main class field |
| */ |
| public String getMainClass() { |
| return mainClass; |
| } |
| |
| /** |
| * |
| * @return JMX service URL |
| */ |
| public String getJmxServiceUrl() { |
| return jmxServiceUrl; |
| } |
| |
| /** |
| * |
| * @return instance name |
| */ |
| public String getInstanceName() { |
| return instanceName; |
| } |
| |
| /** |
| * |
| * @return assembled packet ready to be sent across a Net |
| * @throws IOException |
| */ |
| @Override |
| public byte[] getPacketData() throws IOException { |
| // Assemble packet from fields to byte array |
| JdpPacketWriter writer; |
| writer = new JdpPacketWriter(); |
| writer.addEntry(UUID_KEY, (id == null) ? null : id.toString()); |
| writer.addEntry(MAIN_CLASS_KEY, mainClass); |
| writer.addEntry(JMX_SERVICE_URL_KEY, jmxServiceUrl); |
| writer.addEntry(INSTANCE_NAME_KEY, instanceName); |
| return writer.getPacketBytes(); |
| } |
| |
| /** |
| * |
| * @return packet hash code |
| */ |
| @Override |
| public int hashCode() { |
| int hash = 1; |
| hash = hash * 31 + id.hashCode(); |
| hash = hash * 31 + jmxServiceUrl.hashCode(); |
| return hash; |
| } |
| |
| /** |
| * Compare two packets |
| * |
| * @param o - packet to compare |
| * @return either packet equals or not |
| */ |
| @Override |
| public boolean equals(Object o) { |
| |
| if (o == null || ! (o instanceof JdpJmxPacket) ){ |
| return false; |
| } |
| |
| JdpJmxPacket p = (JdpJmxPacket) o; |
| return Objects.equals(id, p.getId()) && Objects.equals(jmxServiceUrl, p.getJmxServiceUrl()); |
| } |
| } |