org.jwat.warc
Class WarcConstants

java.lang.Object
  org.jwat.warc.WarcConstants

public class WarcConstants
extends Object

Class containing all relevant WARC constants and structures. Including but not limited to field names and mime-types. Also includes non statically initialized structures for validation.

Author:

nicl

Field Summary

static String	CONTENT_TYPE_FORMAT Content-type format string as specified in RFC2616.
static String	CONTENT_TYPE_METADATA Suggested content-type for metadata records and others.
static String	CT_APP_WARC_FIELDS Suggested content-type/media-type for metadata records and others.
protected static byte[]	endMark End mark used after each record consisting of two newlines.
static int	FDT_CONTENTTYPE WARC ContentType field datatype identifier.
static int	FDT_DATE WARC Date field datatype identifier.
static int	FDT_DIGEST WARC Digest field datatype identifier.
static String[]	FDT_IDX_STRINGS WARC field datatype id to field datatype name mapping table.
static int	FDT_INETADDRESS WARC InetAddress field datatype identifier.
static int	FDT_INTEGER WARC Integer field datatype identifier.
static int	FDT_LONG WARC Long field datatype identifier.
static int	FDT_STRING WARC String field datatype identifier.
static int	FDT_URI WARC URI field datatype identifier.
static int[][]	field_policy A (Warc-Types x Warc-Header-Fields) matrix used for policy validation.
static Map<String,Integer>	fieldNameIdxMap Map used to identify known warc field names.
static boolean[]	fieldNamesRepeatableLookup Lookup table of Warc fields that can have multiple occurrences.
static String	FN_CONTENT_LENGTH Content-length field name.
static String	FN_CONTENT_TYPE Content-type field name.
static int	FN_IDX_CONTENT_LENGTH Warc reader content-length field name id.
static int	FN_IDX_CONTENT_TYPE Warc reader content-type field name id.
static int[]	FN_IDX_DT Array to lookup WARC field datatypes.
static String[]	FN_IDX_STRINGS WARC field name id to field name mapping table.
static int	FN_IDX_WARC_BLOCK_DIGEST Warc reader warc-block-digest field name id.
static int	FN_IDX_WARC_CONCURRENT_TO Warc reader warc-concurrent-to field name id.
static int	FN_IDX_WARC_DATE Warc reader warc-date field name id.
static int	FN_IDX_WARC_FILENAME Warc reader warc-filename field name id.
static int	FN_IDX_WARC_IDENTIFIED_PAYLOAD_TYPE Warc reader warc-identified-payload-type field name id.
static int	FN_IDX_WARC_IP_ADDRESS Warc reader warc-ip-address field name id.
static int	FN_IDX_WARC_PAYLOAD_DIGEST Warc reader warc-payload-digest field name id.
static int	FN_IDX_WARC_PROFILE Warc reader warc-profile field name id.
static int	FN_IDX_WARC_RECORD_ID Warc reader warc-record-id field name id.
static int	FN_IDX_WARC_REFERS_TO Warc reader warc-refers-to field name id.
static int	FN_IDX_WARC_SEGMENT_NUMBER Warc reader warc-segment-number field name id.
static int	FN_IDX_WARC_SEGMENT_ORIGIN_ID Warc reader warc-segment-origin-id field name id.
static int	FN_IDX_WARC_SEGMENT_TOTAL_LENGTH Warc reader warc-segment-totalt-length field name id.
static int	FN_IDX_WARC_TARGET_URI Warc reader warc-target-uri field name id.
static int	FN_IDX_WARC_TRUNCATED Warc reader warc-truncated field name id.
static int	FN_IDX_WARC_TYPE Warc reader warc-type field name id.
static int	FN_IDX_WARC_WARCINFO_ID Warc reader warc-warcinfo-id field name id.
static int	FN_MAX_NUMBER Number of WARC fields (zero-indexed).
static String	FN_WARC_BLOCK_DIGEST Warc-block-digest field name.
static String	FN_WARC_CONCURRENT_TO Warc-concurrent-to field name.
static String	FN_WARC_DATE Warc-date field name.
static String	FN_WARC_FILENAME Warc-filename field name.
static String	FN_WARC_IDENTIFIED_PAYLOAD_TYPE Warc-identified-payload-type field name.
static String	FN_WARC_IP_ADDRESS Warc-ip-address field name.
static String	FN_WARC_PAYLOAD_DIGEST Warc-payload-digest field name.
static String	FN_WARC_PROFILE Warc-profile field name.
static String	FN_WARC_RECORD_ID Warc-record-id field name.
static String	FN_WARC_REFERS_TO Warc-refers-to field name.
static String	FN_WARC_SEGMENT_NUMBER Warc-segment-number field name.
static String	FN_WARC_SEGMENT_ORIGIN_ID Warc-segment-origin-id field name.
static String	FN_WARC_SEGMENT_TOTAL_LENGTH Warc-segment-totalt-length field name.
static String	FN_WARC_TARGET_URI Warc-target-uri field name.
static String	FN_WARC_TRUNCATED Warc-truncated field name.
static String	FN_WARC_TYPE Warc-type field name.
static String	FN_WARC_WARCINFO_ID Warc-warcinfo-id field name.
static String	MEDIA_TYPE_METADATA Suggested media-type for metadata records and others.
static String[]	P_IDX_STRINGS WARC profile id to field name mapping table.
static int	POLICY_IGNORE Warc header can be ignored.
static int	POLICY_MANDATORY Warc header is mandatory (equal to shall).
static int	POLICY_MAY Warc header can be present.
static int	POLICY_MAY_NOT Warc header should not be present.
static int	POLICY_SHALL Warc header must be present.
static int	POLICY_SHALL_NOT Warc header must not be present.
static String	PROFILE_IDENTICAL_PAYLOAD_DIGEST Revisit WARC-Profile id for identical payload digest.
static int	PROFILE_IDX_IDENTICAL_PAYLOAD_DIGEST Warc reader id for identical payload digest profile.
static int	PROFILE_IDX_SERVER_NOT_MODIFIED Warc reader id for server not modified profile.
static int	PROFILE_IDX_UNKNOWN Warc reader id for unknown profile.
static String	PROFILE_SERVER_NOT_MODIFIED Revisit WARC-Profile id for server not modified.
static Map<String,Integer>	profileIdxMap Profile lookup map used to identify WARC-Profile values.
static Map<String,Integer>	recordTypeIdxMap WARC-Type lookup map.
static String	RT_CONTINUATION WARC-Type continuation id.
static String	RT_CONVERSION WARC-Type conversion id.
static int	RT_IDX_CONTINUATION Warc reader continuation warc record type id.
static int	RT_IDX_CONVERSION Warc reader conversion warc record type id.
static int	RT_IDX_METADATA Warc reader metadata warc record type id.
static int	RT_IDX_REQUEST Warc reader request warc record type id.
static int	RT_IDX_RESOURCE Warc reader resource warc record type id.
static int	RT_IDX_RESPONSE Warc reader response warc record type id.
static int	RT_IDX_REVISIT Warc reader revisit warc record type id.
static String[]	RT_IDX_STRINGS WARC type id to field name mapping table.
static int	RT_IDX_UNKNOWN Warc reader unknown warc record type id.
static int	RT_IDX_WARCINFO Warc reader warcinfo warc record type id.
static int	RT_MAX_NUMBER Number of WARC types (zero indexed).
static String	RT_METADATA WARC-Type metadata id.
static String	RT_REQUEST WARC-Type request id.
static String	RT_RESOURCE WARC-Type resource id.
static String	RT_RESPONSE WARC-Type response id.
static String	RT_REVISIT WARC-Type revisit id.
static String	RT_WARCINFO WARC-Type warcinfo id.
static Map<String,Integer>	truncatedTypeIdxMap Lookup map for known truncation reason id's.
static String	TT_DISCONNECT WARC-Truncated disconnect id.
static int	TT_IDX_DISCONNECT Warc reader disconnect reason id.
static int	TT_IDX_FUTURE_REASON Warc reader future reason id.
static int	TT_IDX_LENGTH Warc reader length reason id.
static String[]	TT_IDX_STRINGS WARC truncation reason id to field name mapping table.
static int	TT_IDX_TIME Warc reader time reason id.
static int	TT_IDX_UNSPECIFIED Warc reader unspecified reason id.
static String	TT_LENGTH WARC-Truncated length id.
static String	TT_TIME WARC-Truncated time id
static String	TT_UNSPECIFIED WARC-Truncated unspecified id.
static String	WARC_DATE_FORMAT WARC date format string as specified by the WARC ISO standard.
static String	WARC_DIGEST_FORMAT WARC digest format string as specified by the WARC ISO standard.
static String	WARC_MAGIC_HEADER A WARC header block starts with this string including trailing version information.
static String	WARC_MIME_TYPE WARC mime type.
static int	WARC_RECORD_TRAILING_NEWLINES Trailing newlines after each record as per the WARC ISO standard.

Constructor Summary

protected

WarcConstants() This utility class does not require instantiation.

Method Summary

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

WARC_MAGIC_HEADER

public static final String WARC_MAGIC_HEADER

A WARC header block starts with this string including trailing version information.

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endMark

protected static byte[] endMark

End mark used after each record consisting of two newlines.

WARC_DATE_FORMAT

public static final String WARC_DATE_FORMAT

WARC date format string as specified by the WARC ISO standard.

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WARC_DIGEST_FORMAT

public static final String WARC_DIGEST_FORMAT

WARC digest format string as specified by the WARC ISO standard.

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CONTENT_TYPE_FORMAT

public static final String CONTENT_TYPE_FORMAT

Content-type format string as specified in RFC2616.

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WARC_MIME_TYPE

public static final String WARC_MIME_TYPE

WARC mime type.

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CT_APP_WARC_FIELDS

public static final String CT_APP_WARC_FIELDS

Suggested content-type/media-type for metadata records and others.

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CONTENT_TYPE_METADATA

public static final String CONTENT_TYPE_METADATA

Suggested content-type for metadata records and others.

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MEDIA_TYPE_METADATA

public static final String MEDIA_TYPE_METADATA

Suggested media-type for metadata records and others.

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WARC_RECORD_TRAILING_NEWLINES

public static final int WARC_RECORD_TRAILING_NEWLINES

Trailing newlines after each record as per the WARC ISO standard.

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FN_MAX_NUMBER

public static final int FN_MAX_NUMBER

Number of WARC fields (zero-indexed).

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RT_MAX_NUMBER

public static final int RT_MAX_NUMBER

Number of WARC types (zero indexed).

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FN_WARC_TYPE

public static final String FN_WARC_TYPE

Warc-type field name.

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FN_WARC_RECORD_ID

public static final String FN_WARC_RECORD_ID

Warc-record-id field name.

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FN_WARC_DATE

public static final String FN_WARC_DATE

Warc-date field name.

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FN_CONTENT_LENGTH

public static final String FN_CONTENT_LENGTH

Content-length field name.

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FN_CONTENT_TYPE

public static final String FN_CONTENT_TYPE

Content-type field name.

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FN_WARC_CONCURRENT_TO

public static final String FN_WARC_CONCURRENT_TO

Warc-concurrent-to field name.

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FN_WARC_BLOCK_DIGEST

public static final String FN_WARC_BLOCK_DIGEST

Warc-block-digest field name.

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FN_WARC_PAYLOAD_DIGEST

public static final String FN_WARC_PAYLOAD_DIGEST

Warc-payload-digest field name.

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FN_WARC_IP_ADDRESS

public static final String FN_WARC_IP_ADDRESS

Warc-ip-address field name.

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FN_WARC_REFERS_TO

public static final String FN_WARC_REFERS_TO

Warc-refers-to field name.

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FN_WARC_TARGET_URI

public static final String FN_WARC_TARGET_URI

Warc-target-uri field name.

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FN_WARC_TRUNCATED

public static final String FN_WARC_TRUNCATED

Warc-truncated field name.

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FN_WARC_WARCINFO_ID

public static final String FN_WARC_WARCINFO_ID

Warc-warcinfo-id field name.

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FN_WARC_FILENAME

public static final String FN_WARC_FILENAME

Warc-filename field name.

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FN_WARC_PROFILE

public static final String FN_WARC_PROFILE

Warc-profile field name.

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FN_WARC_IDENTIFIED_PAYLOAD_TYPE

public static final String FN_WARC_IDENTIFIED_PAYLOAD_TYPE

Warc-identified-payload-type field name.

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FN_WARC_SEGMENT_ORIGIN_ID

public static final String FN_WARC_SEGMENT_ORIGIN_ID

Warc-segment-origin-id field name.

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FN_WARC_SEGMENT_NUMBER

public static final String FN_WARC_SEGMENT_NUMBER

Warc-segment-number field name.

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FN_WARC_SEGMENT_TOTAL_LENGTH

public static final String FN_WARC_SEGMENT_TOTAL_LENGTH

Warc-segment-totalt-length field name.

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FN_IDX_STRINGS

public static final String[] FN_IDX_STRINGS

WARC field name id to field name mapping table. Zero indexed array with all indexes used > 1. (Index 0 is unused)

FN_IDX_WARC_TYPE

public static final int FN_IDX_WARC_TYPE

Warc reader warc-type field name id.

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FN_IDX_WARC_RECORD_ID

public static final int FN_IDX_WARC_RECORD_ID

Warc reader warc-record-id field name id.

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FN_IDX_WARC_DATE

public static final int FN_IDX_WARC_DATE

Warc reader warc-date field name id.

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FN_IDX_CONTENT_LENGTH

public static final int FN_IDX_CONTENT_LENGTH

Warc reader content-length field name id.

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FN_IDX_CONTENT_TYPE

public static final int FN_IDX_CONTENT_TYPE

Warc reader content-type field name id.

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FN_IDX_WARC_CONCURRENT_TO

public static final int FN_IDX_WARC_CONCURRENT_TO

Warc reader warc-concurrent-to field name id.

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FN_IDX_WARC_BLOCK_DIGEST

public static final int FN_IDX_WARC_BLOCK_DIGEST

Warc reader warc-block-digest field name id.

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FN_IDX_WARC_PAYLOAD_DIGEST

public static final int FN_IDX_WARC_PAYLOAD_DIGEST

Warc reader warc-payload-digest field name id.

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FN_IDX_WARC_IP_ADDRESS

public static final int FN_IDX_WARC_IP_ADDRESS

Warc reader warc-ip-address field name id.

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FN_IDX_WARC_REFERS_TO

public static final int FN_IDX_WARC_REFERS_TO

Warc reader warc-refers-to field name id.

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FN_IDX_WARC_TARGET_URI

public static final int FN_IDX_WARC_TARGET_URI

Warc reader warc-target-uri field name id.

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FN_IDX_WARC_TRUNCATED

public static final int FN_IDX_WARC_TRUNCATED

Warc reader warc-truncated field name id.

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FN_IDX_WARC_WARCINFO_ID

public static final int FN_IDX_WARC_WARCINFO_ID

Warc reader warc-warcinfo-id field name id.

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FN_IDX_WARC_FILENAME

public static final int FN_IDX_WARC_FILENAME

Warc reader warc-filename field name id.

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FN_IDX_WARC_PROFILE

public static final int FN_IDX_WARC_PROFILE

Warc reader warc-profile field name id.

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FN_IDX_WARC_IDENTIFIED_PAYLOAD_TYPE

public static final int FN_IDX_WARC_IDENTIFIED_PAYLOAD_TYPE

Warc reader warc-identified-payload-type field name id.

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FN_IDX_WARC_SEGMENT_ORIGIN_ID

public static final int FN_IDX_WARC_SEGMENT_ORIGIN_ID

Warc reader warc-segment-origin-id field name id.

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FN_IDX_WARC_SEGMENT_NUMBER

public static final int FN_IDX_WARC_SEGMENT_NUMBER

Warc reader warc-segment-number field name id.

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FN_IDX_WARC_SEGMENT_TOTAL_LENGTH

public static final int FN_IDX_WARC_SEGMENT_TOTAL_LENGTH

Warc reader warc-segment-totalt-length field name id.

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fieldNameIdxMap

public static final Map<String,Integer> fieldNameIdxMap

Map used to identify known warc field names.

FDT_STRING

public static final int FDT_STRING

WARC String field datatype identifier.

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FDT_INTEGER

public static final int FDT_INTEGER

WARC Integer field datatype identifier.

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FDT_LONG

public static final int FDT_LONG

WARC Long field datatype identifier.

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FDT_DIGEST

public static final int FDT_DIGEST

WARC Digest field datatype identifier.

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FDT_CONTENTTYPE

public static final int FDT_CONTENTTYPE

WARC ContentType field datatype identifier.

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FDT_DATE

public static final int FDT_DATE

WARC Date field datatype identifier.

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FDT_INETADDRESS

public static final int FDT_INETADDRESS

WARC InetAddress field datatype identifier.

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FDT_URI

public static final int FDT_URI

WARC URI field datatype identifier.

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FDT_IDX_STRINGS

public static final String[] FDT_IDX_STRINGS

WARC field datatype id to field datatype name mapping table.

FN_IDX_DT

public static final int[] FN_IDX_DT

Array to lookup WARC field datatypes.

fieldNamesRepeatableLookup

public static final boolean[] fieldNamesRepeatableLookup

Lookup table of Warc fields that can have multiple occurrences.

RT_WARCINFO

public static final String RT_WARCINFO

WARC-Type warcinfo id.

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RT_RESPONSE

public static final String RT_RESPONSE

WARC-Type response id.

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RT_RESOURCE

public static final String RT_RESOURCE

WARC-Type resource id.

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RT_REQUEST

public static final String RT_REQUEST

WARC-Type request id.

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RT_METADATA

public static final String RT_METADATA

WARC-Type metadata id.

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RT_REVISIT

public static final String RT_REVISIT

WARC-Type revisit id.

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RT_CONVERSION

public static final String RT_CONVERSION

WARC-Type conversion id.

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RT_CONTINUATION

public static final String RT_CONTINUATION

WARC-Type continuation id.

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RT_IDX_STRINGS

public static final String[] RT_IDX_STRINGS

WARC type id to field name mapping table. Zero indexed array with all indexes used > 1. (Index 0 is unused)

RT_IDX_UNKNOWN

public static final int RT_IDX_UNKNOWN

Warc reader unknown warc record type id.

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RT_IDX_WARCINFO

public static final int RT_IDX_WARCINFO

Warc reader warcinfo warc record type id.

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RT_IDX_RESPONSE

public static final int RT_IDX_RESPONSE

Warc reader response warc record type id.

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RT_IDX_RESOURCE

public static final int RT_IDX_RESOURCE

Warc reader resource warc record type id.

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RT_IDX_REQUEST

public static final int RT_IDX_REQUEST

Warc reader request warc record type id.

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RT_IDX_METADATA

public static final int RT_IDX_METADATA

Warc reader metadata warc record type id.

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RT_IDX_REVISIT

public static final int RT_IDX_REVISIT

Warc reader revisit warc record type id.

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RT_IDX_CONVERSION

public static final int RT_IDX_CONVERSION

Warc reader conversion warc record type id.

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RT_IDX_CONTINUATION

public static final int RT_IDX_CONTINUATION

Warc reader continuation warc record type id.

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recordTypeIdxMap

public static final Map<String,Integer> recordTypeIdxMap

WARC-Type lookup map.

TT_LENGTH

public static final String TT_LENGTH

WARC-Truncated length id.

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TT_TIME

public static final String TT_TIME

WARC-Truncated time id

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TT_DISCONNECT

public static final String TT_DISCONNECT

WARC-Truncated disconnect id.

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TT_UNSPECIFIED

public static final String TT_UNSPECIFIED

WARC-Truncated unspecified id.

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TT_IDX_STRINGS

public static final String[] TT_IDX_STRINGS

WARC truncation reason id to field name mapping table. Zero indexed array with all indexes used > 1. (Index 0 is unused)

TT_IDX_FUTURE_REASON

public static final int TT_IDX_FUTURE_REASON

Warc reader future reason id.

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TT_IDX_LENGTH

public static final int TT_IDX_LENGTH

Warc reader length reason id.

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TT_IDX_TIME

public static final int TT_IDX_TIME

Warc reader time reason id.

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TT_IDX_DISCONNECT

public static final int TT_IDX_DISCONNECT

Warc reader disconnect reason id.

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TT_IDX_UNSPECIFIED

public static final int TT_IDX_UNSPECIFIED

Warc reader unspecified reason id.

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truncatedTypeIdxMap

public static final Map<String,Integer> truncatedTypeIdxMap

Lookup map for known truncation reason id's.

PROFILE_IDENTICAL_PAYLOAD_DIGEST

public static final String PROFILE_IDENTICAL_PAYLOAD_DIGEST

Revisit WARC-Profile id for identical payload digest.

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PROFILE_SERVER_NOT_MODIFIED

public static final String PROFILE_SERVER_NOT_MODIFIED

Revisit WARC-Profile id for server not modified.

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P_IDX_STRINGS

public static final String[] P_IDX_STRINGS

WARC profile id to field name mapping table. Zero indexed array with all indexes used > 1. (Index 0 is unused)

PROFILE_IDX_UNKNOWN

public static final int PROFILE_IDX_UNKNOWN

Warc reader id for unknown profile.

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PROFILE_IDX_IDENTICAL_PAYLOAD_DIGEST

public static final int PROFILE_IDX_IDENTICAL_PAYLOAD_DIGEST

Warc reader id for identical payload digest profile.

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PROFILE_IDX_SERVER_NOT_MODIFIED

public static final int PROFILE_IDX_SERVER_NOT_MODIFIED

Warc reader id for server not modified profile.

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profileIdxMap

public static final Map<String,Integer> profileIdxMap

Profile lookup map used to identify WARC-Profile values.

POLICY_IGNORE

public static final int POLICY_IGNORE

Warc header can be ignored.

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POLICY_MANDATORY

public static final int POLICY_MANDATORY

Warc header is mandatory (equal to shall).

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POLICY_SHALL

public static final int POLICY_SHALL

Warc header must be present.

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POLICY_SHALL_NOT

public static final int POLICY_SHALL_NOT

Warc header must not be present.

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POLICY_MAY

public static final int POLICY_MAY

Warc header can be present.

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POLICY_MAY_NOT

public static final int POLICY_MAY_NOT

Warc header should not be present.

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field_policy

public static final int[][] field_policy

A (Warc-Types x Warc-Header-Fields) matrix used for policy validation. (See below)

Constructor Detail

WarcConstants

protected WarcConstants()

This utility class does not require instantiation.