@Override
public Properties getEnvironmentVariables(Platform platform, OptionsByType optionsByType) {
Table diagnosticsTable = optionsByType.get(Table.class);
EnvironmentVariables environmentVariables =
optionsByType.getOrSetDefault(
EnvironmentVariables.class,
EnvironmentVariables.of(EnvironmentVariables.Source.TargetPlatform));
Properties variables = new Properties();
switch (environmentVariables.getSource()) {
case Custom:
if (diagnosticsTable != null) {
diagnosticsTable.addRow("Environment Variables", "(cleared)");
}
break;
case ThisApplication:
variables.putAll(System.getenv());
if (diagnosticsTable != null) {
diagnosticsTable.addRow("Environment Variables", "(based on parent process)");
}
break;
case TargetPlatform:
if (diagnosticsTable != null) {
diagnosticsTable.addRow("Environment Variables", "(based on platform defaults)");
}
break;
}
// add the optionally defined environment variables
variables.putAll(environmentVariables.realize(platform, optionsByType.asArray()));
if (variables.size() > 0 && diagnosticsTable != null) {
Table table = Tabularize.tabularize(variables);
diagnosticsTable.addRow("", table.toString());
}
return variables;
}
@Override
public A launch(Platform platform, MetaClass<A> metaClass, OptionsByType optionsByType) {
// establish the diagnostics output table
Table diagnosticsTable = new Table();
diagnosticsTable.getOptions().add(Table.orderByColumn(0));
if (platform != null) {
diagnosticsTable.addRow("Target Platform", platform.getName());
}
// ----- establish the launch Options for the Application -----
// add the platform options
OptionsByType launchOptions = OptionsByType.of(platform.getOptions()).addAll(optionsByType);
// add the meta-class options
metaClass.onLaunching(platform, launchOptions);
// ---- establish the default Options ----
// define the PlatformSeparators as Unix if they are not already defined
launchOptions.addIfAbsent(PlatformSeparators.forUnix());
// define the default Platform Shell (assume BASH)
launchOptions.addIfAbsent(Shell.is(Shell.Type.BASH));
// define the "local.address" variable so that is can be used for resolving this platform
// address
launchOptions.add(
Variable.with("local.address", LocalPlatform.get().getAddress().getHostAddress()));
// ----- establish an identity for the application -----
// add a unique runtime id for expression support
launchOptions.add(Variable.with("bedrock.runtime.id", UUID.randomUUID()));
// ----- establish default Profiles for this Platform (and Builder) -----
// auto-detect and add externally defined profiles
launchOptions.addAll(Profiles.getProfiles());
// ----- notify the Profiles that the application is about to be launched -----
for (Profile profile : launchOptions.getInstancesOf(Profile.class)) {
profile.onLaunching(platform, metaClass, launchOptions);
}
// ----- add the diagnostic table to the options so it can be used by the terminal -----
launchOptions.add(diagnosticsTable);
// ----- prior to launching the application, let the implementation enhance the launch options
// -----
onLaunching(launchOptions);
// ----- give the MetaClass a last chance to manipulate any options -----
metaClass.onLaunch(platform, launchOptions);
// ----- determine the display name for the application -----
DisplayName displayName = getDisplayName(launchOptions);
// determine the Executable
Executable executable = launchOptions.get(Executable.class);
// ----- deploy remote application artifacts -----
// determine the DeploymentArtifacts based on those specified by the Deployment option
ArrayList<DeploymentArtifact> artifactsToDeploy = new ArrayList<>();
Deployment deployment = launchOptions.get(Deployment.class);
if (deployment != null) {
try {
artifactsToDeploy.addAll(deployment.getDeploymentArtifacts(platform, launchOptions));
} catch (Exception e) {
throw new RuntimeException("Failed to determine artifacts to deploy", e);
}
}
// determine the separators for the platform
PlatformSeparators separators = launchOptions.get(PlatformSeparators.class);
// assume the remote directory is the working directory
WorkingDirectory workingDirectory =
launchOptions.getOrSetDefault(
WorkingDirectory.class, WorkingDirectory.temporaryDirectory());
File remoteDirectoryFile = workingDirectory.resolve(platform, launchOptions);
if (remoteDirectoryFile == null) {
remoteDirectoryFile = WorkingDirectory.temporaryDirectory().resolve(platform, launchOptions);
}
String remoteDirectory = separators.asPlatformFileName(remoteDirectoryFile.toString());
// Set the resolved working directory back into the options
launchOptions.add(WorkingDirectory.at(remoteDirectoryFile));
if (remoteDirectoryFile != null) {
diagnosticsTable.addRow("Working Directory", remoteDirectoryFile.toString());
}
// Obtain the RemoteShell that will be used to launch the process
RemoteTerminalBuilder terminalBuilder =
launchOptions.getOrSetDefault(RemoteTerminalBuilder.class, RemoteTerminals.ssh());
RemoteTerminal terminal = terminalBuilder.build(platform);
// create the working directory
terminal.makeDirectories(remoteDirectory, launchOptions);
// deploy any artifacts required
Deployer deployer = launchOptions.getOrSetDefault(Deployer.class, new SftpDeployer());
DeployedArtifacts deployedArtifacts =
deployer.deploy(artifactsToDeploy, remoteDirectory, platform, launchOptions.asArray());
// add the remote directory as something to clean up
deployedArtifacts.add(remoteDirectoryFile);
if (!deployedArtifacts.isEmpty()) {
// when we've deployed artifacts we need to add a listener to clean them up
launchOptions.add(
Decoration.of(
new ApplicationListener<A>() {
@Override
public void onClosing(A application, OptionsByType optionsByType) {
// nothing to do on closing
}
@Override
public void onClosed(A application, OptionsByType optionsByType) {
// undeploy the deployed artifacts
deployer.undeploy(deployedArtifacts, platform, launchOptions.asArray());
}
@Override
public void onLaunched(A application) {
// nothing to do after launching
}
}));
}
// Realize the application arguments
Arguments arguments = launchOptions.get(Arguments.class);
List<String> argList = arguments.resolve(platform, launchOptions);
// Set the actual arguments used back into the options
launchOptions.add(Arguments.of(argList));
// TODO: put a try/catch around the terminal.launch here so we can clean up the RemoteExecutor
// if
// the application failed to launch
// determine the application class that will represent the running application
Class<? extends A> applicationClass = metaClass.getImplementationClass(platform, launchOptions);
diagnosticsTable.addRow("Application", displayName.resolve(launchOptions));
if (argList.size() > 0) {
diagnosticsTable.addRow(
"Application Arguments ", argList.stream().collect(Collectors.joining(" ")));
}
diagnosticsTable.addRow(
"Application Launch Time", new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date()));
// ----- start the process and establish the application -----
// launch the remote process
RemoteApplicationProcess remoteProcess = terminal.launch(this, applicationClass, launchOptions);
// adapt the remote process into something that the application can use
ApplicationProcess process = adapt(remoteProcess);
// create the Application based on the RemoteApplicationProcess
A application;
try {
// attempt to find a constructor(Platform, JavaApplicationProcess, Options)
Constructor<? extends A> constructor =
ReflectionHelper.getCompatibleConstructor(
applicationClass, platform.getClass(), process.getClass(), OptionsByType.class);
// create the application
application = constructor.newInstance(platform, process, launchOptions);
} catch (Exception e) {
throw new RuntimeException(
"Failed to instantiate the Application class specified by the MetaClass:" + metaClass, e);
}
// ----- after launching the application, let the implementation interact with the application
// -----
onLaunched(application, launchOptions);
// ----- notify the MetaClass that the application has been launched -----
metaClass.onLaunched(platform, application, launchOptions);
// ----- notify the Profiles that the application has been launched -----
for (Profile profile : launchOptions.getInstancesOf(Profile.class)) {
profile.onLaunched(platform, application, launchOptions);
}
// ----- notify all of the application listeners -----
// notify the ApplicationListener-based Options that the application has been launched
for (ApplicationListener listener : launchOptions.getInstancesOf(ApplicationListener.class)) {
listener.onLaunched(application);
}
return application;
}