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*
* Pentaho Data Integration
*
* Copyright (C) 2002-2017 by Pentaho : http://www.pentaho.com
*
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*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
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* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
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package org.pentaho.di.ui.partition.dialog;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.ModifyEvent;
import org.eclipse.swt.events.ModifyListener;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.ShellAdapter;
import org.eclipse.swt.events.ShellEvent;
import org.eclipse.swt.layout.FormAttachment;
import org.eclipse.swt.layout.FormData;
import org.eclipse.swt.layout.FormLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Dialog;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.TableItem;
import org.eclipse.swt.widgets.Text;
import org.pentaho.di.core.Const;
import org.pentaho.di.core.database.DatabaseMeta;
import org.pentaho.di.core.database.PartitionDatabaseMeta;
import org.pentaho.di.core.variables.VariableSpace;
import org.pentaho.di.core.variables.Variables;
import org.pentaho.di.i18n.BaseMessages;
import org.pentaho.di.partition.PartitionSchema;
import org.pentaho.di.ui.core.PropsUI;
import org.pentaho.di.ui.core.dialog.EnterSelectionDialog;
import org.pentaho.di.ui.core.gui.GUIResource;
import org.pentaho.di.ui.core.gui.WindowProperty;
import org.pentaho.di.ui.core.widget.ColumnInfo;
import org.pentaho.di.ui.core.widget.TableView;
import org.pentaho.di.ui.core.widget.TextVar;
import org.pentaho.di.ui.trans.step.BaseStepDialog;
import org.pentaho.di.ui.util.DialogUtils;
/**
*
* Dialog that allows you to edit the settings of the partition schema
*
* @see PartitionSchema
* @author Matt
* @since 17-11-2006
*
*/
public class PartitionSchemaDialog extends Dialog {
private static Class<?> PKG = PartitionSchemaDialog.class; // for i18n purposes, needed by Translator2!!
private PartitionSchema partitionSchema;
private Collection<PartitionSchema> existingSchemas;
private Shell shell;
// Name
private Text wName;
// Dynamic definition?
private Button wDynamic;
private TextVar wNumber;
// Partitions
private TableView wPartitions;
private Button wOK, wGet, wCancel;
private ModifyListener lsMod;
private PropsUI props;
private int middle;
private int margin;
private PartitionSchema originalSchema;
private boolean ok;
private List<DatabaseMeta> databases;
private VariableSpace variableSpace;
public PartitionSchemaDialog( Shell par, PartitionSchema partitionSchema,
Collection<PartitionSchema> existingSchemas, List<DatabaseMeta> databases, VariableSpace variableSpace ) {
super( par, SWT.NONE );
this.partitionSchema = (PartitionSchema) partitionSchema.clone();
this.originalSchema = partitionSchema;
this.existingSchemas = existingSchemas;
this.databases = databases;
this.variableSpace = variableSpace;
props = PropsUI.getInstance();
ok = false;
}
public PartitionSchemaDialog( Shell par, PartitionSchema partitionSchema, List<DatabaseMeta> databases,
VariableSpace variableSpace ) {
this( par, partitionSchema, Collections.<PartitionSchema>emptyList(), databases, variableSpace );
}
public boolean open() {
Shell parent = getParent();
shell = new Shell( parent, SWT.DIALOG_TRIM | SWT.RESIZE | SWT.MAX | SWT.MIN );
props.setLook( shell );
shell.setImage( GUIResource.getInstance().getImageSpoon() );
lsMod = new ModifyListener() {
public void modifyText( ModifyEvent e ) {
partitionSchema.setChanged();
}
};
middle = props.getMiddlePct();
margin = Const.MARGIN;
FormLayout formLayout = new FormLayout();
formLayout.marginWidth = Const.FORM_MARGIN;
formLayout.marginHeight = Const.FORM_MARGIN;
shell.setText( BaseMessages.getString( PKG, "PartitionSchemaDialog.Shell.Title" ) );
shell.setLayout( formLayout );
// First, add the buttons...
// Buttons
wOK = new Button( shell, SWT.PUSH );
wOK.setText( " &OK " );
wGet = new Button( shell, SWT.PUSH );
wGet.setText( BaseMessages.getString( PKG, "PartitionSchema.ImportPartitions" ) );
wCancel = new Button( shell, SWT.PUSH );
wCancel.setText( " &Cancel " );
Button[] buttons = new Button[] { wOK, wGet, wCancel };
BaseStepDialog.positionBottomButtons( shell, buttons, margin, null );
// The rest stays above the buttons, so we added those first...
// What's the schema name??
//
Label wlName = new Label( shell, SWT.RIGHT );
props.setLook( wlName );
wlName.setText( BaseMessages.getString( PKG, "PartitionSchemaDialog.PartitionName.Label" ) );
FormData fdlName = new FormData();
fdlName.top = new FormAttachment( 0, 0 );
fdlName.left = new FormAttachment( 0, 0 ); // First one in the left top corner
fdlName.right = new FormAttachment( middle, 0 );
wlName.setLayoutData( fdlName );
wName = new Text( shell, SWT.SINGLE | SWT.LEFT | SWT.BORDER );
props.setLook( wName );
wName.addModifyListener( lsMod );
FormData fdName = new FormData();
fdName.top = new FormAttachment( 0, 0 );
fdName.left = new FormAttachment( middle, margin ); // To the right of the label
fdName.right = new FormAttachment( 95, 0 );
wName.setLayoutData( fdName );
// is the schema defined dynamically using the number of slave servers in the used cluster.
//
Label wlDynamic = new Label( shell, SWT.RIGHT );
props.setLook( wlDynamic );
wlDynamic.setText( BaseMessages.getString( PKG, "PartitionSchemaDialog.Dynamic.Label" ) );
FormData fdlDynamic = new FormData();
fdlDynamic.top = new FormAttachment( wName, margin );
fdlDynamic.left = new FormAttachment( 0, 0 ); // First one in the left top corner
fdlDynamic.right = new FormAttachment( middle, 0 );
wlDynamic.setLayoutData( fdlDynamic );
wDynamic = new Button( shell, SWT.CHECK );
props.setLook( wDynamic );
wDynamic.setToolTipText( BaseMessages.getString( PKG, "PartitionSchemaDialog.Dynamic.Tooltip" ) );
FormData fdDynamic = new FormData();
fdDynamic.top = new FormAttachment( wName, margin );
fdDynamic.left = new FormAttachment( middle, margin ); // To the right of the label
fdDynamic.right = new FormAttachment( 95, 0 );
wDynamic.setLayoutData( fdDynamic );
// The number of partitions per cluster schema
//
Label wlNumber = new Label( shell, SWT.RIGHT );
props.setLook( wlNumber );
wlNumber.setText( BaseMessages.getString( PKG, "PartitionSchemaDialog.Number.Label" ) );
FormData fdlNumber = new FormData();
fdlNumber.top = new FormAttachment( wDynamic, margin );
fdlNumber.left = new FormAttachment( 0, 0 ); // First one in the left top corner
fdlNumber.right = new FormAttachment( middle, 0 );
wlNumber.setLayoutData( fdlNumber );
wNumber =
new TextVar( variableSpace, shell, SWT.LEFT | SWT.BORDER | SWT.SINGLE, BaseMessages.getString(
PKG, "PartitionSchemaDialog.Number.Tooltip" ) );
props.setLook( wNumber );
FormData fdNumber = new FormData();
fdNumber.top = new FormAttachment( wDynamic, margin );
fdNumber.left = new FormAttachment( middle, margin ); // To the right of the label
fdNumber.right = new FormAttachment( 95, 0 );
wNumber.setLayoutData( fdNumber );
// Schema list:
Label wlPartitions = new Label( shell, SWT.RIGHT );
wlPartitions.setText( BaseMessages.getString( PKG, "PartitionSchemaDialog.Partitions.Label" ) );
props.setLook( wlPartitions );
FormData fdlPartitions = new FormData();
fdlPartitions.left = new FormAttachment( 0, 0 );
fdlPartitions.right = new FormAttachment( middle, 0 );
fdlPartitions.top = new FormAttachment( wNumber, margin );
wlPartitions.setLayoutData( fdlPartitions );
ColumnInfo[] partitionColumns =
new ColumnInfo[] { new ColumnInfo(
BaseMessages.getString( PKG, "PartitionSchemaDialog.PartitionID.Label" ), ColumnInfo.COLUMN_TYPE_TEXT,
false, false ), };
wPartitions = new TableView( Variables.getADefaultVariableSpace(), // probably better push this up. TODO
shell, SWT.BORDER | SWT.FULL_SELECTION | SWT.MULTI, partitionColumns, 1, lsMod, props );
props.setLook( wPartitions );
FormData fdPartitions = new FormData();
fdPartitions.left = new FormAttachment( middle, margin );
fdPartitions.right = new FormAttachment( 100, 0 );
fdPartitions.top = new FormAttachment( wNumber, margin );
fdPartitions.bottom = new FormAttachment( wOK, -margin * 2 );
wPartitions.setLayoutData( fdPartitions );
// Add listeners
wOK.addListener( SWT.Selection, new Listener() {
public void handleEvent( Event e ) {
ok();
}
} );
wGet.addListener( SWT.Selection, new Listener() {
public void handleEvent( Event e ) {
importPartitions();
}
} );
wCancel.addListener( SWT.Selection, new Listener() {
public void handleEvent( Event e ) {
cancel();
}
} );
SelectionAdapter selAdapter = new SelectionAdapter() {
public void widgetDefaultSelected( SelectionEvent e ) {
ok();
}
};
wName.addSelectionListener( selAdapter );
// Detect X or ALT-F4 or something that kills this window...
shell.addShellListener( new ShellAdapter() {
public void shellClosed( ShellEvent e ) {
cancel();
}
} );
getData();
BaseStepDialog.setSize( shell );
shell.open();
Display display = parent.getDisplay();
while ( !shell.isDisposed() ) {
if ( !display.readAndDispatch() ) {
display.sleep();
}
}
return ok;
}
public void dispose() {
props.setScreen( new WindowProperty( shell ) );
shell.dispose();
}
public void getData() {
wName.setText( Const.NVL( partitionSchema.getName(), "" ) );
refreshPartitions();
wDynamic.setSelection( partitionSchema.isDynamicallyDefined() );
wNumber.setText( Const.NVL( partitionSchema.getNumberOfPartitionsPerSlave(), "" ) );
wName.setFocus();
}
private void refreshPartitions() {
wPartitions.clearAll( false );
List<String> partitionIDs = partitionSchema.getPartitionIDs();
for ( int i = 0; i < partitionIDs.size(); i++ ) {
TableItem item = new TableItem( wPartitions.table, SWT.NONE );
item.setText( 1, partitionIDs.get( i ) );
}
wPartitions.removeEmptyRows();
wPartitions.setRowNums();
wPartitions.optWidth( true );
}
private void cancel() {
originalSchema = null;
dispose();
}
public void ok() {
getInfo();
if ( !partitionSchema.getName().equals( originalSchema.getName() ) ) {
if ( DialogUtils.objectWithTheSameNameExists( partitionSchema, existingSchemas ) ) {
String title = BaseMessages.getString( PKG, "PartitionSchemaDialog.PartitionSchemaNameExists.Title" );
String message =
BaseMessages.getString( PKG, "PartitionSchemaDialog.PartitionSchemaNameExists", partitionSchema.getName() );
String okButton = BaseMessages.getString( PKG, "System.Button.OK" );
MessageDialog dialog =
new MessageDialog( shell, title, null, message, MessageDialog.ERROR, new String[] { okButton }, 0 );
dialog.open();
return;
}
}
originalSchema.setName( partitionSchema.getName() );
originalSchema.setPartitionIDs( partitionSchema.getPartitionIDs() );
originalSchema.setDynamicallyDefined( wDynamic.getSelection() );
originalSchema.setNumberOfPartitionsPerSlave( wNumber.getText() );
originalSchema.setChanged();
ok = true;
dispose();
}
// Get dialog info in partition schema meta-data
//
private void getInfo() {
partitionSchema.setName( wName.getText() );
List<String> parts = new ArrayList<String>();
int nrNonEmptyPartitions = wPartitions.nrNonEmpty();
for ( int i = 0; i < nrNonEmptyPartitions; i++ ) {
parts.add( wPartitions.getNonEmpty( i ).getText( 1 ) );
}
partitionSchema.setPartitionIDs( parts );
}
protected void importPartitions() {
List<String> partitionedDatabaseNames = new ArrayList<String>();
for ( int i = 0; i < databases.size(); i++ ) {
DatabaseMeta databaseMeta = databases.get( i );
if ( databaseMeta.isPartitioned() ) {
partitionedDatabaseNames.add( databaseMeta.getName() );
}
}
String[] dbNames = partitionedDatabaseNames.toArray( new String[partitionedDatabaseNames.size()] );
if ( dbNames.length > 0 ) {
EnterSelectionDialog dialog =
new EnterSelectionDialog(
shell, dbNames, BaseMessages.getString( PKG, "PartitionSchema.SelectDatabase" ), BaseMessages
.getString( PKG, "PartitionSchema.SelectPartitionnedDatabase" ) );
String dbName = dialog.open();
if ( dbName != null ) {
DatabaseMeta databaseMeta = DatabaseMeta.findDatabase( databases, dbName );
PartitionDatabaseMeta[] partitioningInformation = databaseMeta.getPartitioningInformation();
if ( partitioningInformation != null ) {
// Here we are...
wPartitions.clearAll( false );
for ( int i = 0; i < partitioningInformation.length; i++ ) {
PartitionDatabaseMeta meta = partitioningInformation[i];
wPartitions.add( new String[] { meta.getPartitionId() } );
}
wPartitions.removeEmptyRows();
wPartitions.setRowNums();
wPartitions.optWidth( true );
}
}
}
}
}