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// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.model.utils;
import com.yahoo.config.FileReference;
import com.yahoo.config.application.api.DeployLogger;
import com.yahoo.config.application.api.FileRegistry;
import com.yahoo.config.model.producer.AbstractConfigProducer;
import com.yahoo.config.model.producer.UserConfigRepo;
import com.yahoo.vespa.config.ConfigDefinition;
import com.yahoo.vespa.config.ConfigDefinition.DefaultValued;
import com.yahoo.vespa.config.ConfigDefinitionKey;
import com.yahoo.vespa.config.ConfigPayloadBuilder;
import com.yahoo.vespa.model.AbstractService;
import java.io.Serializable;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;
import java.util.logging.Level;
/**
* Utility methods for sending files to a collection of nodes.
*
* @author gjoranv
*/
public class FileSender implements Serializable {
private final Collection<? extends AbstractService> services;
private final FileRegistry fileRegistry;
private final DeployLogger logger;
public FileSender(Collection<? extends AbstractService> services, FileRegistry fileRegistry, DeployLogger logger) {
this.services = services;
this.fileRegistry = fileRegistry;
this.logger = logger;
}
/**
* Send the given file to all given services.
*
* @param fileReference The file reference to send.
* @param services The services to send the file to.
* @throws IllegalStateException if services is empty.
*/
public static void send(FileReference fileReference, Collection<? extends AbstractService> services) {
if (services.isEmpty()) {
throw new IllegalStateException("No service instances. Probably a standalone cluster setting up <nodes> " +
"using 'count' instead of <node> tags.");
}
for (AbstractService service : services) {
// The same reference will be returned from each call.
service.send(fileReference);
}
}
/**
* Sends all user configured files for a producer to all given services.
*/
public <PRODUCER extends AbstractConfigProducer<?>> void sendUserConfiguredFiles(PRODUCER producer) {
if (services.isEmpty())
return;
UserConfigRepo userConfigs = producer.getUserConfigs();
Map<String, FileReference> sentFiles = new HashMap<>();
for (ConfigDefinitionKey key : userConfigs.configsProduced()) {
ConfigPayloadBuilder builder = userConfigs.get(key);
try {
sendUserConfiguredFiles(builder, sentFiles, key);
} catch (IllegalArgumentException e) {
throw new IllegalArgumentException("Unable to send file specified in " + key, e);
}
}
}
private void sendUserConfiguredFiles(ConfigPayloadBuilder builder, Map<String, FileReference> sentFiles, ConfigDefinitionKey key) {
ConfigDefinition configDefinition = builder.getConfigDefinition();
if (configDefinition == null) {
// TODO: throw new IllegalArgumentException("Not able to find config definition for " + builder);
logger.logApplicationPackage(Level.FINE, "Not able to find config definition for " + key +
". Will not send files for this config");
return;
}
// Inspect fields at this level
sendEntries(builder, sentFiles, configDefinition.getFileDefs());
sendEntries(builder, sentFiles, configDefinition.getPathDefs());
// Inspect arrays
for (Map.Entry<String, ConfigDefinition.ArrayDef> entry : configDefinition.getArrayDefs().entrySet()) {
if (isFileOrPathArray(entry)) {
ConfigPayloadBuilder.Array array = builder.getArray(entry.getKey());
sendFileEntries(array.getElements(), sentFiles);
}
}
// Maps
for (Map.Entry<String, ConfigDefinition.LeafMapDef> entry : configDefinition.getLeafMapDefs().entrySet()) {
if (isFileOrPathMap(entry)) {
ConfigPayloadBuilder.MapBuilder map = builder.getMap(entry.getKey());
sendFileEntries(map.getElements(), sentFiles);
}
}
// Inspect inner fields
for (String name : configDefinition.getStructDefs().keySet()) {
sendUserConfiguredFiles(builder.getObject(name), sentFiles, key);
}
for (String name : configDefinition.getInnerArrayDefs().keySet()) {
ConfigPayloadBuilder.Array array = builder.getArray(name);
for (ConfigPayloadBuilder element : array.getElements()) {
sendUserConfiguredFiles(element, sentFiles, key);
}
}
for (String name : configDefinition.getStructMapDefs().keySet()) {
ConfigPayloadBuilder.MapBuilder map = builder.getMap(name);
for (ConfigPayloadBuilder element : map.getElements()) {
sendUserConfiguredFiles(element, sentFiles, key);
}
}
}
private static boolean isFileOrPathMap(Map.Entry<String, ConfigDefinition.LeafMapDef> entry) {
String mapType = entry.getValue().getTypeSpec().getType();
return ("file".equals(mapType) || "path".equals(mapType));
}
private static boolean isFileOrPathArray(Map.Entry<String, ConfigDefinition.ArrayDef> entry) {
String arrayType = entry.getValue().getTypeSpec().getType();
return ("file".equals(arrayType) || "path".equals(arrayType));
}
private void sendEntries(ConfigPayloadBuilder builder, Map<String, FileReference> sentFiles, Map<String, ? extends DefaultValued<String>> entries) {
for (String name : entries.keySet()) {
ConfigPayloadBuilder fileEntry = builder.getObject(name);
if (fileEntry.getValue() == null) {
throw new IllegalArgumentException("Unable to send file for field '" + name + "': Invalid config value " + fileEntry.getValue());
}
sendFileEntry(fileEntry, sentFiles);
}
}
private void sendFileEntries(Collection<ConfigPayloadBuilder> builders, Map<String, FileReference> sentFiles) {
for (ConfigPayloadBuilder builder : builders) {
sendFileEntry(builder, sentFiles);
}
}
private void sendFileEntry(ConfigPayloadBuilder builder, Map<String, FileReference> sentFiles) {
String path = builder.getValue();
FileReference reference = sentFiles.get(path);
if (reference == null) {
reference = fileRegistry.addFile(path);
send(reference, services);
sentFiles.put(path, reference);
}
builder.setValue(reference.value());
}
}
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