/**
 *  '$RCSfile$'
 *  Copyright: 2004 Regents of the University of California and the
 *             National Center for Ecological Analysis and Synthesis
 *
 *   '$Author: tao $'
 *     '$Date: 2015-05-30 05:01:03 +0000 (Sat, 30 May 2015) $'
 * '$Revision: 9226 $'
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program 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 for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

/*
 * Drop all of the objects in proper order
 */
set echo off

DROP SEQUENCE xml_nodes_id_seq;
DROP SEQUENCE xml_revisions_id_seq;
DROP SEQUENCE xml_catalog_id_seq;
DROP SEQUENCE xml_relation_id_seq;
DROP SEQUENCE xml_replication_id_seq;
DROP SEQUENCE access_log_id_seq;
DROP SEQUENCE xml_returnfield_id_seq;
DROP SEQUENCE xml_queryresult_id_seq;
DROP SEQUENCE xml_path_index_id_seq;
DROP SEQUENCE db_version_id_seq;

/* Drop triggers are not necessary */
DROP TRIGGER xml_nodes_before_insert;
DROP TRIGGER xml_revisions_before_insert;
DROP TRIGGER xml_catalog_before_insert;
DROP TRIGGER xml_relation_before_insert;
DROP TRIGGER xml_replication_before_insert;
DROP TRIGGER access_log_before_insert;
DROP TRIGGER xml_returnfield_before_insert;
DROP TRIGGER xml_queryresult_before_insert;
DROP TRIGGER db_version_before_insert;


DROP TABLE xml_index;
DROP TABLE xml_access;
DROP TABLE xml_accesssubtree;
DROP TABLE xml_revisions;
DROP TABLE xml_relation;
DROP TABLE xml_documents CASCADE CONSTRAINTS;
DROP TABLE xml_nodes;
DROP TABLE xml_nodes_revisions;
DROP TABLE xml_replication;
DROP TABLE xml_catalog;
DROP TABLE identifier;
DROP TABLE systemMetadata;
DROP TABLE access_log;
DROP TABLE harvest_site_schedule;
DROP TABLE harvest_detail_log;
DROP TABLE harvest_log;
DROP TABLE xml_queryresult;
DROP TABLE xml_returnfield;
DROP TABLE xml_path_index;
DROP TABLE db_version;

/*
 *Replication -- table to store servers that metacat is replicated to
 */
CREATE TABLE xml_replication (
  serverid      NUMBER(20),
  server        VARCHAR2(512),
  last_checked  DATE,
  replicate     NUMBER(1),
  datareplicate NUMBER(1),
  hub NUMBER(1),
  CONSTRAINT xml_replication_pk PRIMARY KEY (serverid)
);

CREATE SEQUENCE xml_replication_id_seq;
CREATE TRIGGER xml_replication_before_insert
BEFORE INSERT ON xml_replication FOR EACH ROW
BEGIN
  SELECT xml_replication_id_seq.nextval
    INTO :new.serverid
    FROM dual;
END;
/

INSERT INTO xml_replication (server, replicate, datareplicate, hub)
 VALUES ('localhost', '0', '0', '0');

/*
 * Nodes -- table to store XML Nodes (both elements and attributes)
 */
CREATE SEQUENCE xml_nodes_id_seq;
CREATE TABLE xml_nodes (
	nodeid		NUMBER(20),	-- the unique node id (pk)
	nodeindex	NUMBER(10),	-- order of nodes within parent
	nodetype	VARCHAR2(20),	-- type (DOCUMENT, COMMENT, PI,
					-- ELEMENT, ATTRIBUTE, TEXT)
	nodename	VARCHAR2(250),	-- the name of an element or attribute
	nodeprefix	VARCHAR2(50),	-- the namespace prefix of an element
                                        -- or attribute
	nodedata	VARCHAR2(4000), -- the data for this node (e.g.,
					-- for TEXT it is the content)
	parentnodeid	NUMBER(20),	-- index of the parent of this node
	rootnodeid	NUMBER(20),	-- index of the root node of this tree
	docid		VARCHAR2(250),	-- index to the document id
	date_created	DATE,
	date_updated	DATE,
	nodedatanumerical NUMBER,       -- the data for this node if it is a number
	nodedatadate TIMESTAMP,       -- the data for this node if it is a date
   CONSTRAINT xml_nodes_pk PRIMARY KEY (nodeid),
   CONSTRAINT xml_nodes_root_fk
		FOREIGN KEY (rootnodeid) REFERENCES xml_nodes,
   CONSTRAINT xml_nodes_parent_fk
		FOREIGN KEY (parentnodeid) REFERENCES xml_nodes
);
CREATE TRIGGER xml_nodes_before_insert
BEFORE INSERT ON xml_nodes FOR EACH ROW
BEGIN
  SELECT xml_nodes_id_seq.nextval
    INTO :new.nodeid
    FROM dual;
END;
/


/*
 * Indexes of rootnodeid, parentnodeid, and nodename in xml_nodes
 */
CREATE INDEX xml_nodes_idx1 ON xml_nodes (rootnodeid);
CREATE INDEX xml_nodes_idx2 ON xml_nodes (parentnodeid);
CREATE INDEX xml_nodes_idx3 ON xml_nodes (nodename);
CREATE INDEX xml_nodes_idx4 ON xml_nodes (docid);


/*
 * xml_nodes_revisions -- table to store nodes from xml_nodes which are of old revisions and deleted document
 */

CREATE TABLE xml_nodes_revisions (
        nodeid          NUMBER(20),     -- the unique node id (pk)
        nodeindex       NUMBER(10),     -- order of nodes within parent
        nodetype        VARCHAR2(20),   -- type (DOCUMENT, COMMENT, PI,
                                        -- ELEMENT, ATTRIBUTE, TEXT)
        nodename        VARCHAR2(250),  -- the name of an element or attribute
        nodeprefix      VARCHAR2(50),   -- the namespace prefix of an element
                                        -- or attribute
        nodedata        VARCHAR2(4000), -- the data for this node (e.g.,
                                        -- for TEXT it is the content)
        parentnodeid    NUMBER(20),     -- index of the parent of this node
        rootnodeid      NUMBER(20),     -- index of the root node of this tree
        docid           VARCHAR2(250),  -- index to the document id
        date_created    DATE,
        date_updated    DATE,
        nodedatanumerical NUMBER,       -- the data for this node if it is a number
        nodedatadate TIMESTAMP,       -- the data for this node if it is a date
   CONSTRAINT xml_nodes_revisions_pk PRIMARY KEY (nodeid),
   CONSTRAINT xml_nodes_revisions_root_fk
                FOREIGN KEY (rootnodeid) REFERENCES xml_nodes_revisions,
   CONSTRAINT xml_nodes_revisions_parent_fk
                FOREIGN KEY (parentnodeid) REFERENCES xml_nodes_revisions
);


/*
 * Indexes of rootnodeid, parentnodeid, and nodename in xml_nodes_revision
 */
CREATE INDEX xml_nodes_revisions_idx1 ON xml_nodes_revisions (rootnodeid);
CREATE INDEX xml_nodes_revisions_idx2 ON xml_nodes_revisions (parentnodeid);
CREATE INDEX xml_nodes_revisions_idx3 ON xml_nodes_revisions (nodename);

/*
 * XML Catalog -- table to store all external sources for XML documents
 */
CREATE TABLE xml_catalog (
	catalog_id	NUMBER(20),	-- the id for this catalog entry
	entry_type	VARCHAR2(500),	-- the type of this catalog entry
					-- (e.g., DTD, XSD, XSL)
	source_doctype	VARCHAR2(500),	-- the source public_id for transforms
	target_doctype	VARCHAR2(500),	-- the target public_id for transforms
	public_id	VARCHAR2(500),	-- the unique id for this type
	system_id	VARCHAR2(1000),	-- the local location of the object
   CONSTRAINT xml_catalog_pk PRIMARY KEY (catalog_id),
   CONSTRAINT xml_catalog_uk UNIQUE
		(entry_type, source_doctype, target_doctype, public_id)
);

CREATE SEQUENCE xml_catalog_id_seq;

CREATE TRIGGER xml_catalog_before_insert
BEFORE INSERT ON xml_catalog FOR EACH ROW
BEGIN
  SELECT xml_catalog_id_seq.nextval
    INTO :new.catalog_id
    FROM dual;
END;
/

/*
 * Documents -- table to store XML documents
 */
CREATE TABLE xml_documents (
	docid		VARCHAR2(250),	-- the document id #
	rootnodeid	NUMBER(20),	-- reference to root node of the DOM
	docname		VARCHAR2(100),	-- usually the root element name
	doctype		VARCHAR2(100),	-- public id indicating document type
	user_owner	VARCHAR2(100),	-- the user owned the document
	user_updated	VARCHAR2(100),	-- the user updated the document
	server_location NUMBER(20),	-- the server on which this document
                                        -- originates
	rev 		NUMBER(10) DEFAULT 1,--the revision number of the docume
	date_created	DATE,
	date_updated	DATE,
	public_access	NUMBER(1),	-- flag for public access
        catalog_id      NUMBER(20),	-- reference to xml_catalog
   CONSTRAINT xml_documents_pk PRIMARY KEY (docid),
   CONSTRAINT xml_documents_rep_fk
    		FOREIGN KEY (server_location) REFERENCES xml_replication,
   CONSTRAINT xml_documents_root_fk
		FOREIGN KEY (rootnodeid) REFERENCES xml_nodes,
   CONSTRAINT xml_documents_catalog_fk
		FOREIGN KEY (catalog_id) REFERENCES xml_catalog
);

/*
 * Index of <docid,doctype> in xml_document
 */
CREATE INDEX xml_documents_idx1 ON xml_documents (docid, doctype);
CREATE INDEX xml_documents_idx2 ON xml_documents (lower(user_owner));
CREATE INDEX xml_documents_idx3 ON xml_documents (rootnodeid);
CREATE INDEX xml_documents_idx5 ON xml_documents (docid, rev);


/*
 * Revised Documents -- table to store XML documents saved after an UPDATE
 *                    or DELETE
 */
CREATE TABLE xml_revisions (
	revisionid	NUMBER(20),	-- the revision number we are saving
	docid		VARCHAR2(250),	-- the document id #
	rootnodeid	NUMBER(20),	-- reference to root node of the DOM
	docname		VARCHAR2(100),	-- usually the root element name
	doctype		VARCHAR2(100),	-- public id indicating document type
	user_owner	VARCHAR2(100),
	user_updated	VARCHAR2(100),
	server_location NUMBER(20),
	rev		NUMBER(10),
	date_created	DATE,
	date_updated	DATE,
	public_access	NUMBER(1),	-- flag for public access
        catalog_id      NUMBER(20),	-- reference to xml_catalog
   CONSTRAINT xml_revisions_pk PRIMARY KEY (revisionid),
   CONSTRAINT xml_revisions_rep_fk
		FOREIGN KEY (server_location) REFERENCES xml_replication,
   CONSTRAINT xml_revisions_root_fk
		FOREIGN KEY (rootnodeid) REFERENCES xml_nodes_revisions,
   CONSTRAINT xml_revisions_catalog_fk
		FOREIGN KEY (catalog_id) REFERENCES xml_catalog
);

CREATE SEQUENCE xml_revisions_id_seq;

CREATE TRIGGER xml_revisions_before_insert
BEFORE INSERT ON xml_revisions FOR EACH ROW
BEGIN
  SELECT xml_revisions_id_seq.nextval
    INTO :new.revisionid
    FROM dual;
END;
/

/*
 * ACL -- table to store ACL for XML documents by principals
 */
CREATE TABLE xml_access (
	guid   VARCHAR2(2000),    -- the globally unique string identifier
	accessfileid	VARCHAR2(2000),	-- the id for the access file
	principal_name	VARCHAR2(100),	-- name of user, group, etc.
	permission	NUMBER(1),	-- "read", "write", "all"
	perm_type	VARCHAR2(32),	-- "allowed" or "denied"
	perm_order	VARCHAR2(32),	-- "allow first" or "deny first"
	begin_time	DATE,		-- the time that permission begins
	end_time	DATE,		-- the time that permission ends
	ticket_count	NUMBER(5),	-- ticket counter for that permission
  subtreeid VARCHAR2(32), -- sub tree id
  startnodeid NUMBER(20), -- start node for sub tree
  endnodeid NUMBER(20),    -- end node for sub tree
   CONSTRAINT xml_access_ck CHECK (begin_time < end_time),
);
CREATE INDEX xml_access_idx1 ON xml_access (lower(principal_name));
CREATE INDEX xml_access_idx2 ON xml_access (permission);
CREATE INDEX xml_access_idx3 ON xml_access (perm_type);
CREATE INDEX xml_access_idx4 ON xml_access (perm_order);
CREATE INDEX xml_access_idx5 ON xml_access (subtreeid);
CREATE INDEX xml_access_idx6 on xml_access(guid);
CREATE INDEX identifier_docid_rev_log ON identifier((docid||'.'||rev));



/*
 * Index of Nodes -- table to store precomputed paths through tree for
 * quick searching in structured searches
 */
CREATE TABLE xml_index (
	nodeid		NUMBER(20),	-- the unique node id
	path		VARCHAR2(1000),	-- precomputed path through tree
	docid		VARCHAR2(250),	-- index to the document id
	doctype		VARCHAR2(100),	-- public id indicating document type
        parentnodeid    NUMBER(20),     -- id of the parent of the node
					-- represented by this row
   CONSTRAINT xml_index_pk PRIMARY KEY (nodeid,path),
   CONSTRAINT xml_index_nodeid_fk FOREIGN KEY (nodeid) REFERENCES xml_nodes,
   CONSTRAINT xml_index_docid_fk
		FOREIGN KEY (docid) REFERENCES xml_documents
);

/*
 * Index of the paths in xml_index
 */
CREATE INDEX xml_index_idx1 ON xml_index (path);
CREATE INDEX xml_index_idx2 ON xml_index (docid);
CREATE INDEX xml_index_idx3 ON xml_index (nodeid);


/*
 * Index of Paths - table to store nodes with paths specified by userst in metacat.properties
 */
CREATE TABLE xml_path_index (
        nodeid          NUMBER(20),     -- the unique node id
        docid           VARCHAR2(250),  -- index to the document id
        path            VARCHAR2(4000), -- precomputed path through tree
	    nodedata        VARCHAR2(4000), -- the data for this node e.g.,
        nodedatanumerical NUMBER(20),   -- the data for this node if
		nodedatadate TIMESTAMP,       -- the data for this node if it is a date        
		parentnodeid    NUMBER(20),     -- index of the parent of this node
        CONSTRAINT xml_path_index_pk PRIMARY KEY (nodeid),
        CONSTRAINT xml_path_index_docid_fk FOREIGN KEY (docid) REFERENCES xml_documents
 );                                                                                        


/*
 * create sequence an trigger
 */
CREATE SEQUENCE xml_path_index_id_seq;                                                                                                                                                             
CREATE TRIGGER xml_path_index_before_insert
BEFORE INSERT ON xml_path_index FOR EACH ROW
BEGIN
  SELECT xml_path_index_id_seq.nextval
    INTO :new.nodeid
    FROM dual;
END;
/


/*
 * Index of the path, nodedata, nodedatanumerical in xml_path_index
 */
CREATE INDEX xml_path_index_idx1 ON xml_path_index (path);
CREATE INDEX xml_path_index_idx2 ON xml_path_index (nodedata);
CREATE INDEX xml_path_index_idx3 ON xml_path_index (nodedatanumerical);
CREATE INDEX xml_path_index_idx4 ON xml_path_index (nodedatadate);
CREATE INDEX xml_path_index_idx6 ON xml_path_index (docid);


CREATE TABLE xml_relation (
	relationid    NUMBER(20) PRIMARY KEY, -- unique id
	docid         VARCHAR2(250),          -- the docid of the package file
	                                      -- that this relation came from
        packagetype   VARCHAR2(250),          -- the type of the package
	subject       VARCHAR2(512) NOT NULL, -- the subject of the relation
	subdoctype    VARCHAR2(128),          -- the doctype of the subject
	relationship  VARCHAR2(128)  NOT NULL,-- the relationship type
	object        VARCHAR2(512) NOT NULL, -- the object of the relation
	objdoctype    VARCHAR2(128),          -- the doctype of the object
	CONSTRAINT xml_relation_uk UNIQUE (docid, subject, relationship, object),
	CONSTRAINT xml_relation_docid_fk
		FOREIGN KEY (docid) REFERENCES xml_documents
  );

CREATE SEQUENCE xml_relation_id_seq;

CREATE TRIGGER xml_relation_before_insert
BEFORE INSERT ON xml_relation FOR EACH ROW
BEGIN
  SELECT xml_relation_id_seq.nextval
    INTO :new.relationid
    FROM dual;
END;
/

/*
 * Table used to store all document identifiers for system metadata objects
 * similar restraints to identifier.  Cannot use identifier table for this 
 * purpose because then you have to worry about whether you insert the
 * data first or the systemMetadata first.
 */
CREATE TABLE systemMetadata (
   guid   VARCHAR2(2000),    -- the globally unique string identifier
   series_id   VARCHAR2(2000),    -- the series identifier
   serial_version VARCHAR2(256), --the serial version of the object   
   date_uploaded DATE, -- the date/time the document was first submitted
   rights_holder VARCHAR2(250), --the user who has rights to the document, usually the first persons to upload it
   checksum VARCHAR2(512), --the checksum of the doc using the given algorithm (see below)
   checksum_algorithm VARCHAR2(250), --the algorithm used to calculate the checksum
   origin_member_node VARCHAR2(250), --the member node where the document was first uploaded
   authoritive_member_node VARCHAR2(250), --the member node that currently controls the document
   date_modified DATE, -- the last date/time that the file was changed
   submitter VARCHAR2(256), -- the user who originally submitted the doc
   object_format VARCHAR2(256), --the format of the object
   size VARCHAR2(256), --the size of the object
   	archived boolean,	 -- specifies whether this an archived object
   replication_allowed boolean,	 -- replication allowed
   number_replicas NUMBER(8), 	-- the number of replicas allowed
   obsoletes   VARCHAR2(2000),    -- the identifier of the record that this replaces
   obsoleted_by   VARCHAR2(2000),    -- the identifier of the record that replaces this record
   media_type   VARCHAR2(2000),      -- the media type of the object
   file_name    VARCHAR2(2000),      -- the suggested file name of the object
   CONSTRAINT systemMetadata_pk 
		PRIMARY KEY (guid)
)

/*
 * Table used to store the properties for media types. They are part of the system metadata. But a media type
 * can have multiple properties, we have to store them in a separate table. The guids in this table refer
 * the guids in the systemMetadata.
 */
CREATE TABLE smMediaTypeProperties (
  guid   VARCHAR2(2000),  -- id refer to guid in the system metadata table
  name   VARCHAR2(512), -- name of the property
  value   VARCHAR2(512), -- value of the property
  CONSTRAINT smMediaTypeProperties_fk 
     FOREIGN KEY (guid) REFERENCES systemMetadata DEFERRABLE
);

CREATE TABLE smReplicationPolicy (
	guid VARCHAR2(2000),	-- the globally unique string identifier of the object that the system metadata describes
	member_node VARCHAR(250),	 -- replication member node
	policy VARCHAR2(2000),	 -- the policy (preferred, blocked, etc...TBD)
	CONSTRAINT smReplicationPolicy_fk 
		FOREIGN KEY (guid) REFERENCES systemMetadata DEFERRABLE
);

CREATE TABLE smReplicationStatus (
	guid VARCHAR2(2000),	-- the globally unique string identifier of the object that the system metadata describes
	member_node VARCHAR(250),	 -- replication member node
	status VARCHAR(250),	 -- replication status
	date_verified DATE, 	-- the date replication was verified   
	CONSTRAINT smReplicationStatus_fk 
		FOREIGN KEY (guid) REFERENCES systemMetadata DEFERRABLE
);

/*
 * Table used to store all document identifiers in metacat.  Each identifier
 * has a globally unique, unconstrained string, which we will refer to as a
 * GUID, and a local metacat identifier, which consists of the docid
 * and revision fields. Each row maps one global identifier to the local
 * identifier (docid) used within metacat.
 */
CREATE TABLE identifier (
   guid   VARCHAR2(2000), -- the globally unique string identifier
   docid  VARCHAR2(250),  -- the local document id #
   rev    NUMBER(8)       -- the revision part of the local identifier
);
CREATE INDEX identifier_guid on identifier(guid);
CREATE INDEX identifier_docid on identifier(docid);
CREATE INDEX identifier_rev on identifier(rev);
CREATE INDEX identifier_docid_rev on identifier(docid, rev);


/*
 * the index_event table for solr-based indexing
 */
CREATE TABLE index_event (
	guid VARCHAR2(2000),
	event_action VARCHAR2(250),
	description VARCHAR2(2000), 
	event_date DATE
);

/*
 * accesssubtree -- table to store access subtree info
 */
CREATE TABLE xml_accesssubtree (
	docid		VARCHAR2(250),	-- the document id #
  rev 		NUMBER(10) DEFAULT 1, --the revision number of the docume
  controllevel VARCHAR2(50), -- the level it control -- document or subtree
  subtreeid VARCHAR2(250), -- the subtree id
	startnodeid	NUMBER(20),	-- the start node id of access subtree
  endnodeid NUMBER(20), -- the end node if of access subtree
  CONSTRAINT xml_accesssubtree_docid_fk
		FOREIGN KEY (docid) REFERENCES xml_documents
);

/*
 * Returnfields -- table to store combinations of returnfields requested
 *		   and the number of times this table is accessed
 */
CREATE TABLE xml_returnfield (
        returnfield_id     NUMBER(20),     -- the id for this returnfield entry
        returnfield_string VARCHAR2(2000), -- the returnfield string
        usage_count        NUMBER(20),     -- the number of times this string
                                           -- has been requested
        CONSTRAINT xml_returnfield_pk PRIMARY KEY (returnfield_id)
);
CREATE INDEX xml_returnfield_idx1 ON xml_returnfield(returnfield_string);

CREATE SEQUENCE xml_returnfield_id_seq;

CREATE TRIGGER xml_returnfield_before_insert
BEFORE INSERT ON xml_returnfield FOR EACH ROW
BEGIN
  SELECT xml_returnfield_id_seq.nextval
    INTO :new.returnfield_id
    FROM dual;
END;
/

/*
 * Queryresults -- table to store queryresults for a given docid
 * and returnfield_id
 */
CREATE TABLE xml_queryresult(
  queryresult_id       NUMBER(20),     -- id for this entry
  returnfield_id       NUMBER(20),     -- id for the returnfield corresponding to this entry
  docid                VARCHAR2(250),  -- docid of the document
  queryresult_string   VARCHAR2(4000), -- resultant text generated for this docid and given
  				       -- returnfield
  CONSTRAINT xml_queryresult_pk PRIMARY KEY (queryresult_id),
  CONSTRAINT xml_queryresult_searchid_fk
               FOREIGN KEY (returnfield_id) REFERENCES xml_returnfield
);

CREATE INDEX xml_queryresult_idx1 ON xml_queryresult (returnfield_id, docid);

CREATE SEQUENCE xml_queryresult_id_seq;

CREATE TRIGGER xml_queryresult_before_insert
BEFORE INSERT ON xml_queryresult FOR EACH ROW
BEGIN
 SELECT xml_queryresult_id_seq.nextval
   INTO :new.queryresult_id
   FROM dual;
END;
/




/*
 * Logging -- table to store metadata and data access log
 */
CREATE TABLE access_log (
  entryid       NUMBER(20),     -- the identifier for the log event
  ip_address    VARCHAR2(512),  -- the ip address inititiating the event
  user_agent    VARCHAR2(512),  -- the user agent for the request
  principal     VARCHAR2(512),  -- the user initiiating the event
  docid         VARCHAR2(250),	-- the document id #
  event         VARCHAR2(512),  -- the code symbolizing the event type
  date_logged   DATE,           -- the datetime on which the event occurred
  CONSTRAINT access_log_pk PRIMARY KEY (entryid)
);
CREATE INDEX access_log_docid ON access_log(docid);

CREATE SEQUENCE access_log_id_seq;
CREATE TRIGGER access_log_before_insert
BEFORE INSERT ON access_log FOR EACH ROW
BEGIN
  SELECT access_log_id_seq.nextval
    INTO :new.entryid
    FROM dual;
END;
/

/*
 * harvest_site_schedule -- table to store harvest sites and schedule info
 */
CREATE TABLE harvest_site_schedule (
  site_schedule_id NUMBER,         -- unique id
  documentlisturl  VARCHAR2(255),  -- URL of the site harvest document list
  ldapdn           VARCHAR2(255),  -- LDAP distinguished name for site account
  datenextharvest  DATE,           -- scheduled date of next harvest
  datelastharvest  DATE,           -- recorded date of last harvest
  updatefrequency  NUMBER,         -- the harvest update frequency
  unit             VARCHAR2(50),   -- update unit -- days weeks or months
  contact_email    VARCHAR2(50),   -- email address of the site contact person
  ldappwd          VARCHAR2(20),   -- LDAP password for site account
  CONSTRAINT harvest_site_schedule_pk PRIMARY KEY (site_schedule_id)
);

/*
 * harvest_log -- table to log entries for harvest operations
 */
CREATE TABLE harvest_log (
  harvest_log_id         NUMBER,         -- unique id
  harvest_date           DATE,           -- date of the current harvest
  status                 NUMBER,         -- non-zero indicates an error status
  message                VARCHAR2(1000), -- text message for this log entry
  harvest_operation_code VARCHAR2(1000),   -- the type of harvest operation
  site_schedule_id       NUMBER,         -- site schedule id, or 0 if no site
  CONSTRAINT harvest_log_pk PRIMARY KEY (harvest_log_id)
);

/*
 * harvest_detail_log -- table to log detailed info about documents that
 *                       generated errors during the harvest
 */
CREATE TABLE harvest_detail_log (
  detail_log_id          NUMBER,         -- unique id
  harvest_log_id         NUMBER,         -- ponter to the related log entry
  scope                  VARCHAR2(50),   -- document scope
  identifier             NUMBER,         -- document identifier
  revision               NUMBER,         -- document revision
  document_url           VARCHAR2(255),  -- document URL
  error_message          VARCHAR2(1000), -- text error message
  document_type          VARCHAR2(100),  -- document type
  CONSTRAINT harvest_detail_log_pk PRIMARY KEY (detail_log_id),
  CONSTRAINT harvest_detail_log_fk
        FOREIGN KEY (harvest_log_id) REFERENCES harvest_log
);

/*
 * db_version -- table to store the version history of this database
 */
CREATE TABLE db_version (
  db_version_id   NUMBER(20),       -- the identifier for the version
  version         VARCHAR(250),     -- the version number
  status          NUMBER(20),       -- status of the version
  date_created    DATE,             -- the datetime on which the version was created
  CONSTRAINT db_version_pk PRIMARY KEY (db_version_id)
);

CREATE SEQUENCE db_version_id_seq;
CREATE TRIGGER db_version_before_insert
BEFORE INSERT ON db_version FOR EACH ROW
BEGIN
  SELECT db_version_id_seq.nextval
    INTO :new.db_version_id
    FROM dual;
END;
/

/*
 * scheduled_job -- table to store scheduled jobs
 */
CREATE TABLE scheduled_job (
  id NUMBER(20) NOT NULL default nextval('scheduled_job_id_seq'),
  date_created TIMESTAMP NOT NULL,
  date_updated TIMESTAMP NOT NULL,
  status VARCHAR2(64) NOT NULL,
  name VARCHAR2(512) NOT NULL,
  trigger_name VARCHAR2(512) NOT NULL,
  group_name VARCHAR2(512) NOT NULL,
  class_name VARCHAR2(1024) NOT NULL,
  start_time TIMESTAMP NOT NULL,
  interval_value NUMBER NOT NULL,
  interval_unit VARCHAR2(8) NOT NULL,
  CONSTRAINT scheduled_job_pk PRIMARY KEY (id),
  CONSTRAINT scheduled_job_uk UNIQUE (name)
);

CREATE SEQUENCE scheduled_job_id_seq;
CREATE TRIGGER scheduled_job_before_insert
BEFORE INSERT ON scheduled_job FOR EACH ROW
BEGIN
  SELECT scheduled_job_id_seq.nextval
    INTO :new.id
    FROM dual;
END;
/

/*
 * scheduled_job_params -- table to store scheduled job parameters
 */
CREATE TABLE scheduled_job_params (
  id NUMBER(20)  NOT NULL default nextval('scheduled_job_params_id_seq'),
  date_created TIMESTAMP NOT NULL,
  date_updated TIMESTAMP  NOT NULL,
  status VARCHAR2(64)  NOT NULL,
  job_id NUMBER(20) NOT NULL,
  key VARCHAR2(64) NOT NULL,
  value VARCHAR2(1024) NOT NULL,
  CONSTRAINT scheduled_job_params_pk PRIMARY KEY (id),
  CONSTRAINT scheduled_job_params_fk
        FOREIGN KEY (job_id) REFERENCES scheduled_job(id)
);

CREATE SEQUENCE scheduled_job_params_id_seq;
CREATE TRIGGER scheduled_job_params_before_insert
BEFORE INSERT ON scheduled_job_params FOR EACH ROW
BEGIN
  SELECT scheduled_job_id_params_seq.nextval
    INTO :new.id
    FROM dual;
END;
/

