commons-net.jar Source Code

commons-net.jar is the bytecode of Apache Commons Net library, which implements the client side of many basic Internet protocols.

Apache Commons Net Source Code files are provided in the binary packge (commons-net-3.8.0-bin.zip). You can download it at Apache Commons Net Website.

The source code of commons-net-3.8.0.jar is provided below:

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org/apache/commons/net/ntp/NtpV3Packet.java

package org.apache.commons.net.ntp;
/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.
 */


import java.net.DatagramPacket;

/**
 * Interface for a NtpV3Packet with get/set methods corresponding to the fields
 * in the NTP Data Message Header described in RFC 1305.
 *
 */
public interface NtpV3Packet
{

    /**
     * Standard NTP UDP port
     */
    int NTP_PORT = 123;

    int LI_NO_WARNING = 0;
    int LI_LAST_MINUTE_HAS_61_SECONDS = 1;
    int LI_LAST_MINUTE_HAS_59_SECONDS = 2;
    int LI_ALARM_CONDITION = 3;

    /* mode options */
    int MODE_RESERVED = 0;
    int MODE_SYMMETRIC_ACTIVE = 1;
    int MODE_SYMMETRIC_PASSIVE = 2;
    int MODE_CLIENT = 3;
    int MODE_SERVER = 4;
    int MODE_BROADCAST = 5;
    int MODE_CONTROL_MESSAGE = 6;
    int MODE_PRIVATE = 7;

    int NTP_MINPOLL = 4;  // 16 seconds
    int NTP_MAXPOLL = 14; // 16284 seconds

    int NTP_MINCLOCK = 1;
    int NTP_MAXCLOCK = 10;

    int VERSION_3 = 3;
    int VERSION_4 = 4;

    /* possible getType values such that other time-related protocols can
     * have its information represented as NTP packets
     */
    String TYPE_NTP = "NTP";         // RFC-1305/2030
    String TYPE_ICMP = "ICMP";       // RFC-792
    String TYPE_TIME = "TIME";       // RFC-868
    String TYPE_DAYTIME = "DAYTIME"; // RFC-867

    /**
     * @return a datagram packet with the NTP parts already filled in
     */
    DatagramPacket getDatagramPacket();

    /**
     * Set the contents of this object from the datagram packet
     * @param dp the packet
     */
    void setDatagramPacket(DatagramPacket dp);

    /**
     * @return leap indicator as defined in RFC-1305
     */
    int getLeapIndicator();

    /**
     * Set leap indicator.
     * @param li - leap indicator code
     */
    void setLeapIndicator(int li);

    /**
     * @return mode as defined in RFC-1305
     */
    int getMode();

    /**
     * @return mode as human readable string; e.g. 3=Client
     */
    String getModeName();

    /**
     * Set mode as defined in RFC-1305
     * @param mode the mode to set
     */
    void setMode(int mode);

    /**
     * @return poll interval as defined in RFC-1305.
     * Field range between NTP_MINPOLL and NTP_MAXPOLL.
     */
    int getPoll();

    /**
     * Set poll interval as defined in RFC-1305.
     * Field range between NTP_MINPOLL and NTP_MAXPOLL.
     * @param poll the interval to set
     */
    void setPoll(int poll);

    /**
     * @return precision as defined in RFC-1305
     */
    int getPrecision();

    /**
     * Set precision as defined in RFC-1305
     * @param precision Precision
     * @since 3.4
     */
    void setPrecision(int precision);

    /**
     * @return root delay as defined in RFC-1305
     */
    int getRootDelay();

    /**
     * Set root delay as defined in RFC-1305
     * @param delay the delay to set
     * @since 3.4
    */
    void setRootDelay(int delay);

    /**
     * @return root delay in milliseconds
     */
    double getRootDelayInMillisDouble();

    /**
     * @return root dispersion as defined in RFC-1305
     */
    int getRootDispersion();

    /**
     *
     * @param dispersion the value to set
     * @since 3.4
     */
    void setRootDispersion(int dispersion);

    /**
     * @return root dispersion in milliseconds
     */
    long getRootDispersionInMillis();

    /**
     * @return root dispersion in milliseconds
     */
    double getRootDispersionInMillisDouble();

    /**
     * @return version as defined in RFC-1305
     */
    int getVersion();

    /**
     * Set version as defined in RFC-1305
     * @param version the version to set
     */
    void setVersion(int version);

    /**
     * @return stratum as defined in RFC-1305
     */
    int getStratum();

    /**
     * Set stratum as defined in RFC-1305
     * @param stratum the stratum to set
     */
    void setStratum(int stratum);

    /**
     * @return the reference id string
     */
    String getReferenceIdString();

    /**
     * @return the reference id (32-bit code) as defined in RFC-1305
     */
    int getReferenceId();

    /**
     * Set reference clock identifier field.
     * @param refId the clock id field to set
     */
    void setReferenceId(int refId);

    /**
     * @return the transmit timestamp as defined in RFC-1305
     */
    TimeStamp getTransmitTimeStamp();

    /**
     * @return the reference time as defined in RFC-1305
     */
    TimeStamp getReferenceTimeStamp();

    /**
     * @return the originate time as defined in RFC-1305
     */
    TimeStamp getOriginateTimeStamp();

    /**
     * @return the receive time as defined in RFC-1305
     */
    TimeStamp getReceiveTimeStamp();

    /**
     * Set the transmit timestamp given NTP TimeStamp object.
     * @param ts - timestamp
     */
    void setTransmitTime(TimeStamp ts);

    /**
     * Set the reference timestamp given NTP TimeStamp object.
     * @param ts - timestamp
     */
    void setReferenceTime(TimeStamp ts);

    /**
     * Set originate timestamp given NTP TimeStamp object.
     * @param ts - timestamp
     */
    void setOriginateTimeStamp(TimeStamp ts);

    /**
     * Set receive timestamp given NTP TimeStamp object.
     * @param ts - timestamp
     */
    void setReceiveTimeStamp(TimeStamp ts);

    /**
     * Return type of time packet. The values (e.g. NTP, TIME, ICMP, ...)
     * correspond to the protocol used to obtain the timing information.
     *
     * @return packet type string identifier
     */
    String getType();

}

org/apache/commons/net/ntp/NtpV3Packet.java

 

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