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//******************************************************************************************************* // StandardPointFile.java - Gbtc // // Tennessee Valley Authority, 2009 // No copyright is claimed pursuant to 17 USC 105. All Other Rights Reserved. // // This software is made freely available under the TVA Open Source Agreement (see below). // // Code Modification History: // ----------------------------------------------------------------------------------------------------- // 03/16/2009 - Josh L. Patterson // Generated original version of source code. // 09/15/2009 - Stephen C. Wills // Added new header and license agreement. // //******************************************************************************************************* /* TVA Open Source Agreement THIS OPEN SOURCE AGREEMENT ("AGREEMENT") DEFINES THE RIGHTS OF USE,REPRODUCTION, DISTRIBUTION, MODIFICATION AND REDISTRIBUTION OF CERTAIN COMPUTER SOFTWARE ORIGINALLY RELEASED BY THE TENNESSEE VALLEY AUTHORITY, A CORPORATE AGENCY AND INSTRUMENTALITY OF THE UNITED STATES GOVERNMENT ("GOVERNMENT AGENCY"). GOVERNMENT AGENCY IS AN INTENDED THIRD-PARTY BENEFICIARY OF ALL SUBSEQUENT DISTRIBUTIONS OR REDISTRIBUTIONS OF THE SUBJECT SOFTWARE. ANYONE WHO USES, REPRODUCES, DISTRIBUTES, MODIFIES OR REDISTRIBUTES THE SUBJECT SOFTWARE, AS DEFINED HEREIN, OR ANY PART THEREOF, IS, BY THAT ACTION, ACCEPTING IN FULL THE RESPONSIBILITIES AND OBLIGATIONS CONTAINED IN THIS AGREEMENT. Original Software Designation: openPDC Original Software Title: The TVA Open Source Phasor Data Concentrator User Registration Requested. Please Visit https://naspi.tva.com/Registration/ Point of Contact for Original Software: J. Ritchie Carroll <mailto:jrcarrol@tva.gov> 1. DEFINITIONS A. "Contributor" means Government Agency, as the developer of the Original Software, and any entity that makes a Modification. B. "Covered Patents" mean patent claims licensable by a Contributor that are necessarily infringed by the use or sale of its Modification alone or when combined with the Subject Software. C. "Display" means the showing of a copy of the Subject Software, either directly or by means of an image, or any other device. D. "Distribution" means conveyance or transfer of the Subject Software, regardless of means, to another. E. "Larger Work" means computer software that combines Subject Software, or portions thereof, with software separate from the Subject Software that is not governed by the terms of this Agreement. F. "Modification" means any alteration of, including addition to or deletion from, the substance or structure of either the Original Software or Subject Software, and includes derivative works, as that term is defined in the Copyright Statute, 17 USC 101. However, the act of including Subject Software as part of a Larger Work does not in and of itself constitute a Modification. G. "Original Software" means the computer software first released under this Agreement by Government Agency entitled openPDC, including source code, object code and accompanying documentation, if any. H. "Recipient" means anyone who acquires the Subject Software under this Agreement, including all Contributors. I. "Redistribution" means Distribution of the Subject Software after a Modification has been made. J. "Reproduction" means the making of a counterpart, image or copy of the Subject Software. K. "Sale" means the exchange of the Subject Software for money or equivalent value. L. "Subject Software" means the Original Software, Modifications, or any respective parts thereof. M. "Use" means the application or employment of the Subject Software for any purpose. 2. GRANT OF RIGHTS A. Under Non-Patent Rights: Subject to the terms and conditions of this Agreement, each Contributor, with respect to its own contribution to the Subject Software, hereby grants to each Recipient a non-exclusive, world-wide, royalty-free license to engage in the following activities pertaining to the Subject Software: 1. Use 2. Distribution 3. Reproduction 4. Modification 5. Redistribution 6. Display B. Under Patent Rights: Subject to the terms and conditions of this Agreement, each Contributor, with respect to its own contribution to the Subject Software, hereby grants to each Recipient under Covered Patents a non-exclusive, world-wide, royalty-free license to engage in the following activities pertaining to the Subject Software: 1. Use 2. Distribution 3. Reproduction 4. Sale 5. Offer for Sale C. The rights granted under Paragraph B. also apply to the combination of a Contributor's Modification and the Subject Software if, at the time the Modification is added by the Contributor, the addition of such Modification causes the combination to be covered by the Covered Patents. It does not apply to any other combinations that include a Modification. D. The rights granted in Paragraphs A. and B. allow the Recipient to sublicense those same rights. Such sublicense must be under the same terms and conditions of this Agreement. 3. OBLIGATIONS OF RECIPIENT A. Distribution or Redistribution of the Subject Software must be made under this Agreement except for additions covered under paragraph 3H. 1. Whenever a Recipient distributes or redistributes the Subject Software, a copy of this Agreement must be included with each copy of the Subject Software; and 2. If Recipient distributes or redistributes the Subject Software in any form other than source code, Recipient must also make the source code freely available, and must provide with each copy of the Subject Software information on how to obtain the source code in a reasonable manner on or through a medium customarily used for software exchange. B. Each Recipient must ensure that the following copyright notice appears prominently in the Subject Software: No copyright is claimed pursuant to 17 USC 105. All Other Rights Reserved. C. Each Contributor must characterize its alteration of the Subject Software as a Modification and must identify itself as the originator of its Modification in a manner that reasonably allows subsequent Recipients to identify the originator of the Modification. In fulfillment of these requirements, Contributor must include a file (e.g., a change log file) that describes the alterations made and the date of the alterations, identifies Contributor as originator of the alterations, and consents to characterization of the alterations as a Modification, for example, by including a statement that the Modification is derived, directly or indirectly, from Original Software provided by Government Agency. Once consent is granted, it may not thereafter be revoked. D. A Contributor may add its own copyright notice to the Subject Software. Once a copyright notice has been added to the Subject Software, a Recipient may not remove it without the express permission of the Contributor who added the notice. E. A Recipient may not make any representation in the Subject Software or in any promotional, advertising or other material that may be construed as an endorsement by Government Agency or by any prior Recipient of any product or service provided by Recipient, or that may seek to obtain commercial advantage by the fact of Government Agency's or a prior Recipient's participation in this Agreement. F. In an effort to track usage and maintain accurate records of the Subject Software, each Recipient, upon receipt of the Subject Software, is requested to register with Government Agency by visiting the following website: https://naspi.tva.com/Registration/. Recipient's name and personal information shall be used for statistical purposes only. Once a Recipient makes a Modification available, it is requested that the Recipient inform Government Agency at the web site provided above how to access the Modification. G. 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Termination: This Agreement and the rights granted hereunder will terminate automatically if a Recipient fails to comply with these terms and conditions, and fails to cure such noncompliance within thirty (30) days of becoming aware of such noncompliance. Upon termination, a Recipient agrees to immediately cease use and distribution of the Subject Software. All sublicenses to the Subject Software properly granted by the breaching Recipient shall survive any such termination of this Agreement. B. Severability: If any provision of this Agreement is invalid or unenforceable under applicable law, it shall not affect the validity or enforceability of the remainder of the terms of this Agreement. C. Applicable Law: This Agreement shall be subject to United States federal law only for all purposes, including, but not limited to, determining the validity of this Agreement, the meaning of its provisions and the rights, obligations and remedies of the parties. D. Entire Understanding: This Agreement constitutes the entire understanding and agreement of the parties relating to release of the Subject Software and may not be superseded, modified or amended except by further written agreement duly executed by the parties. E. Binding Authority: By accepting and using the Subject Software under this Agreement, a Recipient affirms its authority to bind the Recipient to all terms and conditions of this Agreement and that Recipient hereby agrees to all terms and conditions herein. F. Point of Contact: Any Recipient contact with Government Agency is to be directed to the designated representative as follows: J. Ritchie Carroll <mailto:jrcarrol@tva.gov>. */ package TVA.Hadoop.MapReduce.Historian.File; import org.apache.hadoop.io.*; import java.io.IOException; import java.io.DataInput; import java.io.DataOutput; import java.util.Calendar; import java.util.TimeZone; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; /** * * @author Josh Patterson * @version 0.0.1 * * The StandardPointFile is the type used by hadoop to interpret key/value pairs in the DatAware file format. * It is fed to the custom Map Reduce program that is used to analyze the DatAware files on the hadoop cluster. * */ public class StandardPointFile implements Writable, Comparable { public int iTimeTag = 0; // value/time from disk public short Flags = 0; // value from disk public float Value = 0; // value from disk public int iPointID = 0; // value from block pointer, allows us to figure out at the MapReduce level what this point belonged to. static private Calendar cBaseDateTime = Calendar.getInstance(); private static final Log LOG = LogFactory.getLog(StandardPointFile.class); /** * A handy static init area to get our cBaseDateTime init'd. * cBaseDateTime is set to January 1st 1995 as this is the base timestamp all DatAware file data points * are based from. */ static { StandardPointFile.cBaseDateTime.setTimeZone(TimeZone.getTimeZone("UTC")); StandardPointFile.cBaseDateTime.set(1995, 0, 1, 0, 0, 0); StandardPointFile.cBaseDateTime.set(Calendar.MILLISECOND, 0); } /** * Serializes the point to disk. * * @param out A DataOutput object to write data to. * @see DataOutput * @see org.apache.hadoop.io.Writable#write(java.io.DataOutput) * */ public void write(DataOutput out) throws IOException { out.writeInt(iTimeTag); out.writeShort(this.Flags); out.writeFloat(this.Value); out.writeInt(this.iPointID); } /** * Deserializes the point from the underlying data. * * @param in A DataInput object to read the point from. * @see java.io.DataInput * @see org.apache.hadoop.io.Writable#readFields(java.io.DataInput) * */ public void readFields(DataInput in) throws IOException { this.iTimeTag = in.readInt(); this.Flags = in.readShort(); this.Value = in.readFloat(); this.iPointID = in.readInt(); } /** * This is a static method that deserializes a point from the underlying binary representation. * * @param in A DataInput object that represents the underlying stream to read from. * @return A StandardPointFile which is the basic point structure for the DatAware Historian. * @throws IOException */ public static StandardPointFile read(DataInput in) throws IOException { StandardPointFile p = new StandardPointFile(); p.readFields(in); return p; } /** * A comparison method used by the Comparable interface to order the points in a list. */ @Override public int compareTo(Object arg0) { StandardPointFile oOther = (StandardPointFile) arg0; if (this.iTimeTag < oOther.iTimeTag) { return -1; } else if (this.iTimeTag > oOther.iTimeTag) { return 1; } // ok, its similar down to the seconds. now check milliseconds int iThisFlags = this.Flags; int iThisMS = (iThisFlags >> 5); int iOtherFlags = oOther.Flags; int iOtherMS = (iOtherFlags >> 5); if (iThisMS < iOtherMS) { return -1; } else if (iThisMS > iOtherMS) { return 1; } // default -- they are equal return 0; } /** * Used to quickly get the difference between this point and another point in milliseconds. * @param altPoint the other point to measure against. * @return a Long value in milliseconds. */ public long CalcDeltaInMS(StandardPointFile altPoint) { return altPoint.GetCalendar().getTimeInMillis() - this.GetCalendar().getTimeInMillis(); } public void Debug() { System.out.println(StandardPointFile.cBaseDateTime.getTime()); } /** * Get this point's Date in milliseconds based off of the standard DatAware reference Date. * @return A Calendar object representing this point's Date/Time. */ public Calendar GetCalendar() { long time = this.iTimeTag; long lTimeTag = (long) (1000 * time); // now get ms from flag int iFlag = this.Flags; int iMS = (iFlag >> 5); long lFlagMS = (long) (iMS); Calendar cResult = Calendar.getInstance(); cResult.setTimeZone(TimeZone.getTimeZone("UTC")); cResult.setTimeInMillis(StandardPointFile.cBaseDateTime.getTimeInMillis() + lTimeTag + lFlagMS); return cResult; } /** * Used to get this point's Date/Time based off a specific reference base date. * @param cBase The reference base date to use. * @return A Calendar object representing this point's Date/Time. */ public Calendar GetCalendar(Calendar cBase) { long time = this.iTimeTag; long lTimeTag = (long) (1000 * time); int iFlag = this.Flags; int iMS = (iFlag >> 5); long lFlagMS = (long) (iMS); Calendar cResult = Calendar.getInstance(); cResult.setTimeInMillis(cBase.getTimeInMillis() + lTimeTag + lFlagMS); return cResult; } }