diff options
Diffstat (limited to 'lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangPid.java')
| -rw-r--r-- | lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangPid.java | 195 |
1 files changed, 94 insertions, 101 deletions
diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangPid.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangPid.java index fe81ce302d..20b7ff6a7f 100644 --- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangPid.java +++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangPid.java @@ -1,33 +1,31 @@ /* * %CopyrightBegin% - * + * * Copyright Ericsson AB 2000-2009. All Rights Reserved. - * - * The contents of this file are subject to the Erlang Public License, - * Version 1.1, (the "License"); you may not use this file except in - * compliance with the License. You should have received a copy of the - * Erlang Public License along with this software. If not, it can be - * retrieved online at http://www.erlang.org/. - * - * Software distributed under the License is distributed on an "AS IS" - * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See - * the License for the specific language governing rights and limitations - * under the License. - * + * + * Licensed 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. + * * %CopyrightEnd% */ package com.ericsson.otp.erlang; -import java.io.Serializable; - /** * Provides a Java representation of Erlang PIDs. PIDs represent Erlang * processes and consist of a nodename and a number of integers. */ -public class OtpErlangPid extends OtpErlangObject implements Serializable, - Cloneable, Comparable<Object> { +public class OtpErlangPid extends OtpErlangObject implements Comparable<Object> { // don't change this! - static final long serialVersionUID = 1664394142301803659L; + private static final long serialVersionUID = 1664394142301803659L; private final String node; private final int id; @@ -36,175 +34,170 @@ public class OtpErlangPid extends OtpErlangObject implements Serializable, /** * Create a unique Erlang PID belonging to the local node. - * + * * @param self - * the local node. - * + * the local node. + * * @deprecated use OtpLocalNode:createPid() instead */ @Deprecated public OtpErlangPid(final OtpLocalNode self) { - final OtpErlangPid p = self.createPid(); + final OtpErlangPid p = self.createPid(); - id = p.id; - serial = p.serial; - creation = p.creation; - node = p.node; + id = p.id; + serial = p.serial; + creation = p.creation; + node = p.node; } /** * Create an Erlang PID from a stream containing a PID encoded in Erlang * external format. - * + * * @param buf - * the stream containing the encoded PID. - * + * the stream containing the encoded PID. + * * @exception OtpErlangDecodeException - * if the buffer does not contain a valid external - * representation of an Erlang PID. + * if the buffer does not contain a valid external + * representation of an Erlang PID. */ public OtpErlangPid(final OtpInputStream buf) - throws OtpErlangDecodeException { - final OtpErlangPid p = buf.read_pid(); + throws OtpErlangDecodeException { + final OtpErlangPid p = buf.read_pid(); - node = p.node(); - id = p.id(); - serial = p.serial(); - creation = p.creation(); + node = p.node(); + id = p.id(); + serial = p.serial(); + creation = p.creation(); } /** * Create an Erlang pid from its components. - * + * * @param node - * the nodename. - * + * the nodename. + * * @param id - * an arbitrary number. Only the low order 15 bits will be - * used. - * + * an arbitrary number. Only the low order 15 bits will be used. + * * @param serial - * another arbitrary number. Only the low order 13 bits will - * be used. - * + * another arbitrary number. Only the low order 13 bits will be + * used. + * * @param creation - * yet another arbitrary number. Only the low order 2 bits - * will be used. + * yet another arbitrary number. Only the low order 2 bits will + * be used. */ public OtpErlangPid(final String node, final int id, final int serial, - final int creation) { - this.node = node; - this.id = id & 0x7fff; // 15 bits - this.serial = serial & 0x1fff; // 13 bits - this.creation = creation & 0x03; // 2 bits + final int creation) { + this.node = node; + this.id = id & 0x7fff; // 15 bits + this.serial = serial & 0x1fff; // 13 bits + this.creation = creation & 0x03; // 2 bits } /** * Get the serial number from the PID. - * + * * @return the serial number from the PID. */ public int serial() { - return serial; + return serial; } /** * Get the id number from the PID. - * + * * @return the id number from the PID. */ public int id() { - return id; + return id; } /** * Get the creation number from the PID. - * + * * @return the creation number from the PID. */ public int creation() { - return creation; + return creation; } /** * Get the node name from the PID. - * + * * @return the node name from the PID. */ public String node() { - return node; + return node; } /** * Get the string representation of the PID. Erlang PIDs are printed as * #Pid<node.id.serial> - * + * * @return the string representation of the PID. */ @Override public String toString() { - return "#Pid<" + node.toString() + "." + id + "." + serial + ">"; + return "#Pid<" + node.toString() + "." + id + "." + serial + ">"; } /** * Convert this PID to the equivalent Erlang external representation. - * + * * @param buf - * an output stream to which the encoded PID should be - * written. + * an output stream to which the encoded PID should be written. */ @Override public void encode(final OtpOutputStream buf) { - buf.write_pid(node, id, serial, creation); + buf.write_pid(node, id, serial, creation); } /** * Determine if two PIDs are equal. PIDs are equal if their components are * equal. - * - * @param port - * the other PID to compare to. - * + * + * @param o + * the other PID to compare to. + * * @return true if the PIDs are equal, false otherwise. */ @Override public boolean equals(final Object o) { - if (!(o instanceof OtpErlangPid)) { - return false; - } + if (!(o instanceof OtpErlangPid)) { + return false; + } - final OtpErlangPid pid = (OtpErlangPid) o; + final OtpErlangPid pid = (OtpErlangPid) o; - return creation == pid.creation && serial == pid.serial && id == pid.id - && node.compareTo(pid.node) == 0; + return creation == pid.creation && serial == pid.serial && id == pid.id + && node.compareTo(pid.node) == 0; } - + @Override protected int doHashCode() { - OtpErlangObject.Hash hash = new OtpErlangObject.Hash(5); - hash.combine(creation, serial); - hash.combine(id, node.hashCode()); - return hash.valueOf(); + final OtpErlangObject.Hash hash = new OtpErlangObject.Hash(5); + hash.combine(creation, serial); + hash.combine(id, node.hashCode()); + return hash.valueOf(); } - + public int compareTo(final Object o) { - if (!(o instanceof OtpErlangPid)) { - return -1; - } - - final OtpErlangPid pid = (OtpErlangPid) o; - if (creation == pid.creation) { - if (serial == pid.serial) { - if (id == pid.id) { - return node.compareTo(pid.node); - } else { - return id - pid.id; - } - } else { - return serial - pid.serial; - } - } else { - return creation - pid.creation; - } + if (!(o instanceof OtpErlangPid)) { + return -1; + } + + final OtpErlangPid pid = (OtpErlangPid) o; + if (creation == pid.creation) { + if (serial == pid.serial) { + if (id == pid.id) { + return node.compareTo(pid.node); + } + return id - pid.id; + } + return serial - pid.serial; + } + return creation - pid.creation; } } |