slightly more complicated Spreadsheet Import Example
Created: 2011-09-21 18:35:26
Last updated: 2011-09-21 18:48:09
Example using two instances of the SpreadsheetImport service to import data from Excel spreadsheets. The workflow imports these file spreadsheets f and generates a graph comparing the data.
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Workflow Components
Authors (1)
Titles (1)
Spreadsheet Import Example |
Descriptions (1)
Example using the SpreadsheetImport service to import data from an Excel spreadsheet.
The workflow imports the file spreadsheet file WaterUse.xlsx and generates a graph from the date.
The source data is from http://data.gov.uk/ |
Dependencies (0)
Processors (7)
Name |
Type |
Description |
GenerateGraphURL |
beanshell |
ScriptStringBuilder sb = new StringBuilder();
sb.append("http://chart.apis.google.com/chart?");
sb.append("cht=bvg");
sb.append("&chs=1000x300");
sb.append("&ch=");
sb.append("&chxt=x,y,y");
sb.append("&chbh=5,1,5");
sb.append("&chxr=0,");
sb.append(Float.parseFloat(years.get(0)).intValue());
sb.append(",");
sb.append(Float.parseFloat(years.get(years.size() - 1)).intValue());
sb.append(",2|1,0,3500");
sb.append("&chds=0,3500");
sb.append("&chxl=2:|acres");
sb.append("&chxp=2,50");
sb.append("&chco=FF0000,00FF00,0000FF");
sb.append("&chdl=");
for (int i = 0; i < headers.size(); i++) {
sb.append(headers.get(i).replace(" ", "%20"));
if (i+1 < data.size()) {
sb.append("|");
}
}
if (title != void) {
sb.append("&chtt=");
sb.append(type);
}
if (data != void) {
sb.append("&chd=t:");
for (int i = 0; i < data.size(); i++) {
List data1 = (List) data.get(i);
for (int j = 0; j < data1.size(); j++) {
Float value = Float.parseFloat(data1.get(j));
sb.append(value.intValue());
if (j+1 < data1.size()) {
sb.append(",");
}
}
if (i+1 < data.size()) {
sb.append("|");
}
}
}
graphURL = sb.toString(); |
Get_Image_From_URL |
localworker |
ScriptURL inputURL = null;
if (base != void) {
inputURL = new URL(new URL(base), url);
} else {
inputURL = new URL(url);
}
byte[] contents;
if (inputURL.openConnection().getContentLength() == -1) {
// Content size unknown, must read first...
byte[] buffer = new byte[1024];
int bytesRead = 0;
int totalBytesRead = 0;
InputStream is = inputURL.openStream();
while (bytesRead != -1) {
totalBytesRead += bytesRead;
bytesRead = is.read(buffer, 0, 1024);
}
contents = new byte[totalBytesRead];
} else {
contents = new byte[inputURL.openConnection().getContentLength()];
}
int bytesRead = 0;
int totalBytesRead = 0;
InputStream is = inputURL.openStream();
while (bytesRead != -1) {
bytesRead = is.read(contents, totalBytesRead, contents.length - totalBytesRead);
totalBytesRead += bytesRead;
if (contents.length==totalBytesRead) break;
}
image = contents;
|
Beanshell |
beanshell |
Scriptdata = new ArrayList();
headers = new ArrayList();
headers.add(areaPlantedNY.remove(0)+" NY");
headers.add(areaPlantedNJ.remove(0)+" NJ");
headers.add(areaHarvestedNY.remove(0)+" NY");
headers.add(areaHarvestedNJ.remove(0)+" NJ");
data.add(areaPlantedNY);
data.add(areaPlantedNJ);
data.add(areaHarvestedNY);
data.add(areaHarvestedNJ);
year.remove(0);
years = year; |
url_value_NJ |
stringconstant |
Valuehttp://www.myexperiment.org/files/569/download/PS3-NJ-Broccoli.xls |
SpreadsheetImport_2 |
spreadsheet |
|
SpreadsheetImport_2_2 |
spreadsheet |
|
url_value_NY |
stringconstant |
Valuehttp://www.myexperiment.org/files/570/download/PS3-NY-Broccoli.xls |
Beanshells (2)
Name |
Description |
Inputs |
Outputs |
GenerateGraphURL |
|
title
data
headers
years
|
graphURL
|
Beanshell |
|
areaHarvestedNY
areaHarvestedNJ
areaPlantedNY
areaPlantedNJ
year
|
data
headers
years
|
Datalinks (12)
Source |
Sink |
Beanshell:data |
GenerateGraphURL:data |
Beanshell:headers |
GenerateGraphURL:headers |
Beanshell:years |
GenerateGraphURL:years |
GenerateGraphURL:graphURL |
Get_Image_From_URL:url |
SpreadsheetImport_2_2:areaHarvestedNJ |
Beanshell:areaHarvestedNJ |
SpreadsheetImport_2_2:areaPlantedNJ |
Beanshell:areaPlantedNJ |
SpreadsheetImport_2:areaHarvestedNY |
Beanshell:areaHarvestedNY |
SpreadsheetImport_2:areaPlantedNY |
Beanshell:areaPlantedNY |
SpreadsheetImport_2_2:year |
Beanshell:year |
url_value_NY:value |
SpreadsheetImport_2:fileurl |
url_value_NJ:value |
SpreadsheetImport_2_2:fileurl |
Get_Image_From_URL:image |
graph |
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