org.apache.flink.table.functions.FunctionService Java Examples

The following examples show how to use org.apache.flink.table.functions.FunctionService. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example #1
Source File: ExecutionContext.java    From Flink-CEPplus with Apache License 2.0 5 votes vote down vote up 
public ExecutionContext(Environment defaultEnvironment, SessionContext sessionContext, List<URL> dependencies,
		Configuration flinkConfig, Options commandLineOptions, List<CustomCommandLine<?>> availableCommandLines) {
	this.sessionContext = sessionContext.copy(); // create internal copy because session context is mutable
	this.mergedEnv = Environment.merge(defaultEnvironment, sessionContext.getEnvironment());
	this.dependencies = dependencies;
	this.flinkConfig = flinkConfig;

	// create class loader
	classLoader = FlinkUserCodeClassLoaders.parentFirst(
		dependencies.toArray(new URL[dependencies.size()]),
		this.getClass().getClassLoader());

	// create table sources & sinks.
	tableSources = new HashMap<>();
	tableSinks = new HashMap<>();
	mergedEnv.getTables().forEach((name, entry) -> {
		if (entry instanceof SourceTableEntry || entry instanceof SourceSinkTableEntry) {
			tableSources.put(name, createTableSource(mergedEnv.getExecution(), entry.asMap(), classLoader));
		}
		if (entry instanceof SinkTableEntry || entry instanceof SourceSinkTableEntry) {
			tableSinks.put(name, createTableSink(mergedEnv.getExecution(), entry.asMap(), classLoader));
		}
	});

	// create user-defined functions
	functions = new HashMap<>();
	mergedEnv.getFunctions().forEach((name, entry) -> {
		final UserDefinedFunction function = FunctionService.createFunction(entry.getDescriptor(), classLoader, false);
		functions.put(name, function);
	});

	// convert deployment options into command line options that describe a cluster
	commandLine = createCommandLine(mergedEnv.getDeployment(), commandLineOptions);
	activeCommandLine = findActiveCommandLine(availableCommandLines, commandLine);
	runOptions = createRunOptions(commandLine);
	clusterId = activeCommandLine.getClusterId(commandLine);
	clusterSpec = createClusterSpecification(activeCommandLine, commandLine);
}
Example #2
Source File: ExecutionContext.java    From flink with Apache License 2.0 5 votes vote down vote up 
private void registerFunctions() {
	Map<String, FunctionDefinition> functions = new LinkedHashMap<>();
	environment.getFunctions().forEach((name, entry) -> {
		final UserDefinedFunction function = FunctionService.createFunction(
			entry.getDescriptor(),
			classLoader,
			false,
			getTableEnvironment().getConfig().getConfiguration());
		functions.put(name, function);
	});
	registerFunctions(functions);
}
Example #3
Source File: ExecutionContext.java    From flink with Apache License 2.0 4 votes vote down vote up 
public ExecutionContext(Environment defaultEnvironment, SessionContext sessionContext, List<URL> dependencies,
		Configuration flinkConfig, Options commandLineOptions, List<CustomCommandLine<?>> availableCommandLines) {
	this.sessionContext = sessionContext.copy(); // create internal copy because session context is mutable
	this.mergedEnv = Environment.merge(defaultEnvironment, sessionContext.getEnvironment());
	this.dependencies = dependencies;
	this.flinkConfig = flinkConfig;

	// create class loader
	classLoader = FlinkUserCodeClassLoaders.parentFirst(
		dependencies.toArray(new URL[dependencies.size()]),
		this.getClass().getClassLoader());

	// create catalogs
	catalogs = new LinkedHashMap<>();
	mergedEnv.getCatalogs().forEach((name, entry) ->
		catalogs.put(name, createCatalog(name, entry.asMap(), classLoader))
	);

	// create table sources & sinks.
	tableSources = new LinkedHashMap<>();
	tableSinks = new LinkedHashMap<>();
	mergedEnv.getTables().forEach((name, entry) -> {
		if (entry instanceof SourceTableEntry || entry instanceof SourceSinkTableEntry) {
			tableSources.put(name, createTableSource(mergedEnv.getExecution(), entry.asMap(), classLoader));
		}
		if (entry instanceof SinkTableEntry || entry instanceof SourceSinkTableEntry) {
			tableSinks.put(name, createTableSink(mergedEnv.getExecution(), entry.asMap(), classLoader));
		}
	});

	// create user-defined functions
	functions = new LinkedHashMap<>();
	mergedEnv.getFunctions().forEach((name, entry) -> {
		final UserDefinedFunction function = FunctionService.createFunction(entry.getDescriptor(), classLoader, false);
		functions.put(name, function);
	});

	// convert deployment options into command line options that describe a cluster
	commandLine = createCommandLine(mergedEnv.getDeployment(), commandLineOptions);
	activeCommandLine = findActiveCommandLine(availableCommandLines, commandLine);
	runOptions = createRunOptions(commandLine);
	clusterId = activeCommandLine.getClusterId(commandLine);
	clusterSpec = createClusterSpecification(activeCommandLine, commandLine);
}