/*
* JBoss, Home of Professional Open Source.
*
* See the LEGAL.txt file distributed with this work for information regarding copyright ownership and licensing.
*
* See the AUTHORS.txt file distributed with this work for a full listing of individual contributors.
*/
package org.teiid.designer.xsd.ui.wizards;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.ui.wizards.datatransfer.IImportStructureProvider;
import org.teiid.designer.xsd.ui.PluginConstants;
/**
* This class provides information regarding the structure and
* content of specified file system XSD File objects.
* This class was basically copied from FileSystemStructureProvider and adjusted to filter all files except XSD file extensions
*
* @since 8.0
*/
public class XsdFileSystemStructureProvider implements IImportStructureProvider {
/**
* Holds a singleton instance of this class.
*/
public final static XsdFileSystemStructureProvider INSTANCE = new XsdFileSystemStructureProvider();
/**
* Creates an instance of <code>FileSystemStructureProvider</code>.
*/
private XsdFileSystemStructureProvider() {
super();
}
/* (non-Javadoc)
* Method declared on IImportStructureProvider
*/
@Override
public List getChildren(Object element) {
File folder = (File) element;
String[] children = folder.list();
int childrenLength = children == null ? 0 : children.length;
List result = new ArrayList(childrenLength);
for (int i = 0; i < childrenLength; i++) {
if( isXsdFile(children[i]) ) {
result.add(new File(folder, children[i]));
}
}
return result;
}
/* (non-Javadoc)
* Method declared on IImportStructureProvider
*/
@Override
public InputStream getContents(Object element) {
try {
return new FileInputStream((File) element);
} catch (FileNotFoundException e) {
return null;
}
}
/* (non-Javadoc)
* Method declared on IImportStructureProvider
*/
@Override
public String getFullPath(Object element) {
return ((File) element).getPath();
}
/* (non-Javadoc)
* Method declared on IImportStructureProvider
*/
@Override
public String getLabel(Object element) {
//Get the name - if it is empty then return the path as it is a file root
File file = (File) element;
String name = file.getName();
if (name.length() == 0)
return file.getPath();
return name;
}
/* (non-Javadoc)
* Method declared on IImportStructureProvider
*/
@Override
public boolean isFolder(Object element) {
return ((File) element).isDirectory();
}
/* (non-Javadoc)
* Method declared on IImportStructureProvider
*/
public boolean isXsdFile(Object element) {
if( ((String)element).indexOf(PluginConstants.XSD_EXTENSION) != -1 )
return true;
return false;
}
}