/*
* eXist Open Source Native XML Database
* Copyright (C) 2010 The eXist Project
* http://exist-db.org
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* $Id$
*/
package org.exist.ant;
import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.Project;
import org.xmldb.api.DatabaseManager;
import org.xmldb.api.base.Collection;
import org.xmldb.api.base.XMLDBException;
/**
* an ant task to list the sub-collections or resources in a collection.
*
* @author peter.klotz@blue-elephant-systems.com
*/
public class XMLDBListTask extends AbstractXMLDBTask
{
private boolean hasCollections = false;
private boolean hasResources = false;
private String separator = ",";
private String outputproperty;
/* (non-Javadoc)
* @see org.apache.tools.ant.Task#execute()
*/
public void execute() throws BuildException
{
if( uri == null ) {
throw( new BuildException( "You have to specify an XMLDB collection URI" ) );
}
if( ( hasCollections == false ) && ( hasResources == false ) ) {
throw( new BuildException( "You have at least one of collections or resources or both" ) );
}
registerDatabase();
try {
log( "Get base collection: " + uri, Project.MSG_DEBUG );
final Collection base = DatabaseManager.getCollection( uri, user, password );
if( base == null ) {
final String msg = "Collection " + uri + " could not be found.";
if( failonerror ) {
throw( new BuildException( msg ) );
} else {
log( msg, Project.MSG_ERR );
}
}
final StringBuilder buffer = new StringBuilder();
if( hasCollections ) {
final String[] childCollections = base.listChildCollections();
if( childCollections != null ) {
log( "Listing child collections", Project.MSG_DEBUG );
boolean isFirst = true;
for( final String col : childCollections ) {
// only insert separator for 2nd or later item
if( isFirst ) {
isFirst = false;
} else {
buffer.append( separator );
}
buffer.append( col );
}
}
}
if( hasResources ) {
log( "Listing resources", Project.MSG_DEBUG );
final String[] resources = base.listResources();
if( resources != null ) {
if( buffer.length() > 0 ) {
buffer.append( separator );
}
boolean isFirst = true;
for( final String resource : resources ) {
// only insert separator for 2nd or later item
if( isFirst ) {
isFirst = false;
} else {
buffer.append( separator );
}
buffer.append( resource );
}
}
}
if( buffer.length() > 0 ) {
log( "Set property " + outputproperty, Project.MSG_INFO );
getProject().setNewProperty( outputproperty, buffer.toString() );
}
}
catch( final XMLDBException e ) {
final String msg = "XMLDB exception during list: " + e.getMessage();
if( failonerror ) {
throw( new BuildException( msg, e ) );
} else {
log( msg, e, Project.MSG_ERR );
}
}
}
public void setCollections( boolean collections )
{
this.hasCollections = collections;
}
public void setResources( boolean resources )
{
this.hasResources = resources;
}
public void setSeparator( String separator )
{
this.separator = separator;
}
public void setOutputproperty( String outputproperty )
{
this.outputproperty = outputproperty;
}
}