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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespafeeder;
import com.yahoo.clientmetrics.RouteMetricSet;
import com.yahoo.document.DocumentTypeManager;
import com.yahoo.document.DocumentTypeManagerConfigurer;
import com.yahoo.feedapi.FeedContext;
import com.yahoo.feedhandler.FeedResponse;
import com.yahoo.feedhandler.InputStreamRequest;
import com.yahoo.feedhandler.VespaFeedHandler;
import com.yahoo.log.LogSetup;
import com.yahoo.concurrent.SystemTimer;
import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintStream;
import java.util.List;
public class VespaFeeder {
private final Arguments args;
private final DocumentTypeManager manager;
public VespaFeeder(Arguments args, DocumentTypeManager manager) {
this.args = args;
this.manager = manager;
}
public static class FeedErrorException extends Exception {
String message;
FeedErrorException(String message) {
this.message = message;
}
@Override
public String getMessage() {
return message;
}
}
static FeedErrorException renderErrors(List<String> errors) {
StringBuilder buffer = new StringBuilder();
if (!errors.isEmpty()) {
String headline = (errors.size() > 10) ? "First 10 errors (of " + errors.size() + "):" : "Errors:";
buffer.append(headline).append("\n");
for (int i = 0; i < headline.length(); ++i) {
buffer.append("-");
}
buffer.append("\n");
for (int i = 0; i < errors.size() && i < 10; ++i) {
buffer.append(" ").append(errors.get(i)).append("\n");
}
}
return new FeedErrorException(buffer.toString());
}
RouteMetricSet.ProgressCallback createProgressCallback(PrintStream output) {
if ("benchmark".equals(args.getMode())) {
return new BenchmarkProgressPrinter(SystemTimer.INSTANCE, output);
} else {
return new ProgressPrinter(SystemTimer.INSTANCE, output);
}
}
void parseFiles(InputStream stdin, PrintStream output) throws Exception {
FeedContext context = new FeedContext(args.getPropertyProcessor(), args.getSessionFactory(), manager);
final BufferedInputStream input = new BufferedInputStream(stdin);
VespaFeedHandler handler = VespaFeedHandler.createFromContext(context);
if (args.getFiles().isEmpty()) {
InputStreamRequest req = new InputStreamRequest(input);
setProperties(req, input);
FeedResponse response = handler.handle(req, createProgressCallback(output), args.getNumThreads());
if ( ! response.isSuccess()) {
throw renderErrors(response.getErrorList());
}
} else {
if (args.isVerbose()) {
for (String fileName : args.getFiles()) {
long thisSize = new File(fileName).length();
output.println("Size of file '" + fileName + "' is " + thisSize + " B.");
}
}
for (String fileName : args.getFiles()) {
File f = new File(fileName);
FileRequest req = new FileRequest(f);
final BufferedInputStream inputSnooper = new BufferedInputStream(new FileInputStream(fileName));
setProperties(req, inputSnooper);
inputSnooper.close();
FeedResponse response = handler.handle(req, createProgressCallback(output), args.getNumThreads());
if (!response.isSuccess()) {
throw renderErrors(response.getErrorList());
}
}
}
}
// use BufferedInputStream to enforce the input.markSupported() == true
private void setProperties(InputStreamRequest req, BufferedInputStream input) throws IOException {
setPriority(req);
setCreateIfNonExistent(req);
setJsonInput(req, input);
req.setProperty("totaltimeout", "-1");
}
private void setPriority(InputStreamRequest req) {
if (args.getPriority() != null) {
req.setProperty("priority", args.getPriority());
}
}
private void setCreateIfNonExistent(InputStreamRequest req) {
if (args.getFeederConfig().createifnonexistent()) {
req.setProperty("createifnonexistent", "true");
}
}
// package access for easy testing
static void setJsonInput(InputStreamRequest req, BufferedInputStream input) throws IOException {
input.mark(4);
int b = input.read();
input.reset();
// A valid JSON feed will always start with '['
if (b == '[') {
req.setProperty(VespaFeedHandler.JSON_INPUT, Boolean.TRUE.toString());
} else {
req.setProperty(VespaFeedHandler.JSON_INPUT, Boolean.FALSE.toString());
}
}
public static void main(String[] args) {
LogSetup.initVespaLogging("vespa-feeder");
try {
Arguments arguments = new Arguments(args, null);
DocumentTypeManager manager = new DocumentTypeManager();
DocumentTypeManagerConfigurer.configure(manager, "client").close();
VespaFeeder feeder = new VespaFeeder(arguments, manager);
feeder.parseFiles(System.in, System.out);
System.exit(0);
} catch (Arguments.HelpShownException e) {
System.exit(0);
} catch (IllegalArgumentException e) {
System.exit(1);
} catch (FileNotFoundException e) {
System.err.println("Could not open file " + e.getMessage());
System.exit(1);
} catch (FeedErrorException e) {
System.err.println("\n" + e.getMessage());
System.exit(1);
} catch (Exception e) {
System.err.println("Got exception " + e.getMessage() + ", aborting feed.");
System.exit(1);
}
}
}
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