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Verification of WorkSheetId at start execution #19

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Verification of WorkSheetId at start execution #19

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236 changes: 129 additions & 107 deletions src/main/java/org/ccci/gto/pdi/trans/steps/googlespreadsheet/GoogleSpreadsheetInput.java
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Original file line number Diff line number Diff line change
@@ -1,107 +1,129 @@
package org.ccci.gto.pdi.trans.steps.googlespreadsheet;


import com.google.gdata.client.spreadsheet.FeedURLFactory;
import com.google.gdata.client.spreadsheet.SpreadsheetService;
import com.google.gdata.data.spreadsheet.*;
import org.pentaho.di.core.exception.KettleException;
import org.pentaho.di.core.row.RowDataUtil;
import org.pentaho.di.core.row.RowMeta;
import org.pentaho.di.core.row.ValueMetaInterface;
import org.pentaho.di.trans.Trans;
import org.pentaho.di.trans.TransMeta;
import org.pentaho.di.trans.step.*;

import java.net.URL;

public class GoogleSpreadsheetInput extends BaseStep implements StepInterface {

private GoogleSpreadsheetInputMeta meta;
private GoogleSpreadsheetInputData data;

public GoogleSpreadsheetInput(StepMeta meta, StepDataInterface data, int num, TransMeta transMeta, Trans trans) {
super(meta, data, num, transMeta, trans);
}

@Override
public boolean init(StepMetaInterface smi, StepDataInterface sdi) {
meta = (GoogleSpreadsheetInputMeta) smi;
data = (GoogleSpreadsheetInputData) sdi;

if (super.init(smi, sdi)) {
try {
data.accessToken = GoogleSpreadsheet.getAccessToken(meta.getServiceEmail(), meta.getPrivateKeyStore());
if (data.accessToken == null) {
logError("Unable to get access token.");
setErrors(1L);
stopAll();
return false;
}
data.service = new SpreadsheetService("PentahoKettleTransformStep-v1");
data.service.setHeader("Authorization", "Bearer " + data.accessToken);

URL listFeedURL = FeedURLFactory.getDefault().getListFeedUrl(meta.getSpreadsheetKey(), meta.getWorksheetId(), "private", "full");
ListFeed listFeed = data.service.getFeed(listFeedURL, ListFeed.class);
data.rows = listFeed.getEntries();
} catch (Exception e) {
logError("Error: " + e.getMessage(), e);
setErrors(1L);
stopAll();
return false;
}

return true;
}
return false;
}

@Override
public synchronized boolean processRow(StepMetaInterface smi, StepDataInterface sdi) throws KettleException {
meta = (GoogleSpreadsheetInputMeta) smi;
data = (GoogleSpreadsheetInputData) sdi;

if (first) {
first = false;
data.outputRowMeta = new RowMeta();
meta.getFields(data.outputRowMeta, getStepname(), null, null, this, repository, metaStore);
}

try {
Object[] outputRowData = readRow();
if (outputRowData == null) {
setOutputDone();
return false;
} else {
putRow(data.outputRowMeta, outputRowData);
}
} catch (Exception e) {
throw new KettleException(e.getMessage());
} finally {
data.currentRow++;
}
return true;
}

private Object[] readRow() {
try {
Object[] outputRowData = RowDataUtil.allocateRowData(data.outputRowMeta.size());
int outputIndex = 0;

if (data.currentRow < data.rows.size()) {
ListEntry row = data.rows.get(data.currentRow);
for (ValueMetaInterface column : data.outputRowMeta.getValueMetaList()) {
String value = row.getCustomElements().getValue(column.getName());
if (value == null)
outputRowData[outputIndex++] = null;
else
outputRowData[outputIndex++] = value.getBytes("UTF-8");
}
} else {
return null;
}
return outputRowData;
} catch (Exception e) {
return null;
}
}
}
package org.ccci.gto.pdi.trans.steps.googlespreadsheet;


import com.google.gdata.client.spreadsheet.FeedURLFactory;
import com.google.gdata.client.spreadsheet.SpreadsheetService;
import com.google.gdata.data.spreadsheet.*;
import org.pentaho.di.core.exception.KettleException;
import org.pentaho.di.core.row.RowDataUtil;
import org.pentaho.di.core.row.RowMeta;
import org.pentaho.di.core.row.ValueMetaInterface;
import org.pentaho.di.trans.Trans;
import org.pentaho.di.trans.TransMeta;
import org.pentaho.di.trans.step.*;

import java.net.URL;
import java.util.List;

public class GoogleSpreadsheetInput extends BaseStep implements StepInterface {

private GoogleSpreadsheetInputMeta meta;
private GoogleSpreadsheetInputData data;

public GoogleSpreadsheetInput(StepMeta meta, StepDataInterface data, int num, TransMeta transMeta, Trans trans) {
super(meta, data, num, transMeta, trans);
}

@Override
public boolean init(StepMetaInterface smi, StepDataInterface sdi) {
meta = (GoogleSpreadsheetInputMeta) smi;
data = (GoogleSpreadsheetInputData) sdi;

if (super.init(smi, sdi)) {
try {
data.accessToken = GoogleSpreadsheet.getAccessToken(meta.getServiceEmail(), meta.getPrivateKeyStore());
if (data.accessToken == null) {
logError("Unable to get access token.");
setErrors(1L);
stopAll();
return false;
}
data.service = new SpreadsheetService("PentahoKettleTransformStep-v1");
data.service.setHeader("Authorization", "Bearer " + data.accessToken);
checkWorkSheetId(data.service, meta);
URL listFeedURL = FeedURLFactory.getDefault().getListFeedUrl(meta.getSpreadsheetKey(), meta.getWorksheetId(), "private", "full");
ListFeed listFeed = data.service.getFeed(listFeedURL, ListFeed.class);
data.rows = listFeed.getEntries();
} catch (Exception e) {
logError("Error: " + e.getMessage(), e);
setErrors(1L);
stopAll();
return false;
}

return true;
}
return false;
}

@Override
public synchronized boolean processRow(StepMetaInterface smi, StepDataInterface sdi) throws KettleException {
meta = (GoogleSpreadsheetInputMeta) smi;
data = (GoogleSpreadsheetInputData) sdi;

if (first) {
first = false;
data.outputRowMeta = new RowMeta();
meta.getFields(data.outputRowMeta, getStepname(), null, null, this, repository, metaStore);
}

try {
Object[] outputRowData = readRow();
if (outputRowData == null) {
setOutputDone();
return false;
} else {
putRow(data.outputRowMeta, outputRowData);
}
} catch (Exception e) {
throw new KettleException(e.getMessage());
} finally {
data.currentRow++;
}
return true;
}

private Object[] readRow() {
try {
Object[] outputRowData = RowDataUtil.allocateRowData(data.outputRowMeta.size());
int outputIndex = 0;

if (data.currentRow < data.rows.size()) {
ListEntry row = data.rows.get(data.currentRow);
for (ValueMetaInterface column : data.outputRowMeta.getValueMetaList()) {
String value = row.getCustomElements().getValue(column.getName());
if (value == null)
outputRowData[outputIndex++] = null;
else
outputRowData[outputIndex++] = value.getBytes("UTF-8");
}
} else {
return null;
}
return outputRowData;
} catch (Exception e) {
return null;
}
}

public void checkWorkSheetId(SpreadsheetService service, GoogleSpreadsheetInputMeta meta) {
try {
WorksheetFeed feed = service.getFeed(FeedURLFactory.getDefault().getWorksheetFeedUrl(meta.getSpreadsheetKey(), "private", "full"), WorksheetFeed.class);
List<WorksheetEntry> worksheets = feed.getEntries();
int selectedSheet = -1;
for (int i = 0; i < worksheets.size(); i++) {
WorksheetEntry sheet = worksheets.get(i);
if (sheet.getId().endsWith("/" + meta.getWorksheetId())) {
selectedSheet = i;
}
}
if (selectedSheet == -1) {
String id = worksheets.get(0).getId();
String sheetId = id.substring(id.lastIndexOf("/") + 1);
meta.setWorksheetId(sheetId);
}
} catch (Exception err) {
logError("Error : " + err.getMessage(), err);
}
}
}