diff -r f4aff695ffe0 -r 11801b2ff456 jdk/src/jdk.management.agent/share/classes/sun/management/jdp/JdpJmxPacket.java --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/jdk/src/jdk.management.agent/share/classes/sun/management/jdp/JdpJmxPacket.java Tue Jan 31 20:06:32 2017 -0800 @@ -0,0 +1,245 @@ +/* + * 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: + * + * + */ +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"; + /** + * PID of java process, optional presented if it could be obtained + */ + public final static String PROCESS_ID_KEY = "PROCESS_ID"; + /** + * Hostname of rmi server, optional presented if user overrides rmi server + * hostname by java.rmi.server.hostname property + */ + public final static String RMI_HOSTNAME_KEY = "RMI_HOSTNAME"; + /** + * Configured broadcast interval, optional + */ + public final static String BROADCAST_INTERVAL_KEY = "BROADCAST_INTERVAL"; + + private UUID id; + private String mainClass; + private String jmxServiceUrl; + private String instanceName; + private String processId; + private String rmiHostname; + private String broadcastInterval; + + /** + * 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 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); + this.processId = p.get(PROCESS_ID_KEY); + this.rmiHostname = p.get(RMI_HOSTNAME_KEY); + this.broadcastInterval = p.get(BROADCAST_INTERVAL_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; + } + + public String getProcessId() { + return processId; + } + + public void setProcessId(String processId) { + this.processId = processId; + } + + public String getRmiHostname() { + return rmiHostname; + } + + public void setRmiHostname(String rmiHostname) { + this.rmiHostname = rmiHostname; + } + + public String getBroadcastInterval() { + return broadcastInterval; + } + + public void setBroadcastInterval(String broadcastInterval) { + this.broadcastInterval = broadcastInterval; + } + + /** + * + * @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); + writer.addEntry(PROCESS_ID_KEY, processId); + writer.addEntry(RMI_HOSTNAME_KEY, rmiHostname); + writer.addEntry(BROADCAST_INTERVAL_KEY, broadcastInterval); + + 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()); + } +}