/*
Copyright (C) SYSTAP, LLC DBA Blazegraph 2006-2016. All rights reserved.
Contact:
SYSTAP, LLC DBA Blazegraph
2501 Calvert ST NW #106
Washington, DC 20008
licenses@blazegraph.com
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; version 2 of the License.
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
*/
/*
* Created on Feb 12, 2009
*/
package com.bigdata.service;
import java.io.File;
import java.io.Serializable;
import com.bigdata.btree.IndexMetadata;
import com.bigdata.mdi.LocalPartitionMetadata;
/**
* Semi-structured representation of the data service on which the event
* occurred, the name of the index, and the index partition identifier.
*
* @author <a href="mailto:thompsonbry@users.sourceforge.net">Bryan Thompson</a>
* @version $Id$
*/
public class EventResource implements Serializable {
/**
*
*/
private static final long serialVersionUID = -4809586705672043577L;
/**
* The name of the scale-out index and an empty string when not known /
* available.
*/
public final String indexName;
/**
* The index partition identifier and an empty string when not known /
* available.
*/
public final String partitionId;
/**
* The file when the resource is a component of an index partition view (the
* journal or index segment file) and an empty string when not known /
* available.
*/
public final String file;
/**
* Formats the resource (indexName, partitionId, and file) in a manner
* designed to give pleasing results when aggregating {@link Event}s by
* {@link EventResource}.
*/
public String toString() {
final StringBuilder sb = new StringBuilder();
if (indexName != null && indexName.length() != 0) {
sb.append(indexName);
if (partitionId != null && partitionId.length() != 0) {
sb.append("#" + partitionId);
}
} else if (partitionId != null && partitionId.length() != 0) {
sb.append(partitionId);
}
if (file != null && file.length() != 0) {
if (sb.length() != 0) {
sb.append(":");
}
sb.append(file);
}
return sb.toString();
}
/**
* Ctor when there is no index resource for the event (the service on which
* the event is generated is always supplied).
*/
public EventResource() {
this.indexName = BLANK;
this.partitionId = BLANK;
this.file = BLANK;
}
public EventResource(String indexName) {
if (indexName == null)
throw new IllegalArgumentException();
this.indexName = indexName;
this.partitionId = BLANK;
this.file = BLANK;
}
/**
* Forgiving ctor that does the right thing when the {@link IndexMetadata}
* object exists.
*
* @param md
*/
public EventResource(final IndexMetadata md) {
if (md == null) {
this.indexName = BLANK;
this.partitionId = BLANK;
this.file = BLANK;
} else {
this.indexName = md.getName();
final LocalPartitionMetadata pmd = md.getPartitionMetadata();
this.partitionId = pmd == null ? BLANK : Integer.toString(pmd
.getPartitionId());
this.file = BLANK;
}
}
public EventResource(final String indexName, final int partitionId) {
if (indexName == null)
throw new IllegalArgumentException();
this.indexName = indexName;
this.partitionId = BLANK;
this.file = BLANK;
}
/**
* Forgiving ctor does the right thing if the {@link IndexMetadata} exists.
*
* @param md
* Optional.
* @param file
* Required.
*/
public EventResource(final IndexMetadata md, final File file) {
if (file == null)
throw new IllegalArgumentException();
if (md == null) {
this.indexName = BLANK;
this.partitionId = BLANK;
} else {
this.indexName = md.getName();
final LocalPartitionMetadata pmd = md.getPartitionMetadata();
this.partitionId = pmd == null ? BLANK : Integer.toString(pmd
.getPartitionId());
}
this.file = file.toString();
}
public EventResource(final String indexName, final int partitionId,
final File file) {
if (indexName == null)
throw new IllegalArgumentException();
if (file == null)
throw new IllegalArgumentException();
this.indexName = indexName;
this.partitionId = Integer.toString(partitionId);
this.file = file.toString();
}
public EventResource(final String indexName, final String partitionId,
final String file) {
this.indexName = indexName;
this.partitionId = partitionId;
this.file = file;
}
private static transient final String BLANK = "";
}