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package com.networknt.codegen;
import com.beust.jcommander.JCommander;
import com.beust.jcommander.Parameter;
import com.beust.jcommander.ParameterException;
import com.fizzed.rocker.runtime.RockerRuntime;
import com.jsoniter.JsonIterator;
import com.jsoniter.any.Any;
import com.networknt.codegen.rest.YAMLFileParameterizer;
import java.net.URL;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.Set;
import static java.io.File.separator;
/**
* Created by steve on 24/04/17.
*/
public class Cli {
@Parameter(names={"--framework", "-f"}, required = true,
description = "The framework template to be used as scaffolding to the generated code.")
String framework;
@Parameter(names={"--model", "-m"},
description = "The model (aka spec, schema, etc..) provided will drive code generation to match given " +
"interface functions, parameter types, scopes, etc... " +
"This can be in differing expected formats, given the intended framework type to generate. " +
"Please see the documentation for the most up to date usage.")
String model;
@Parameter(names={"--config", "-c"}, required = true,
description = "Configuration parameters in the form of a file to be passed into your service.")
String config;
@Parameter(names={"--output", "-o"},
description = "The output location of the folder which contains the generated codebase.")
String output = ".";
@Parameter(names={"--help", "-h"}, help = true)
private boolean help;
@Parameter(names={"--reload", "-r"}, description = "Specifies whether rocker hot-reloading should be enabled or not. Default is false."+
"If this is set to true, the file 'rocker-compiler.conf' must be available in the classpath.")
private boolean reload;
@Parameter(names={"--parameterize", "-p"}, description = "The location of configuration files that need to be parameterized.")
String parameterizationDir;
public static void main(String ... argv) throws Exception {
try {
Cli cli = new Cli();
JCommander jCommander = JCommander.newBuilder()
.addObject(cli)
.build();
jCommander.parse(argv);
cli.run(jCommander);
} catch (ParameterException e)
{
System.out.println("Command line parameter error: " + e.getLocalizedMessage());
e.usage();
}
}
public void run(JCommander jCommander) throws Exception {
if (help) {
jCommander.usage();
return;
}
RockerRuntime.getInstance().setReloading(reload);
System.out.printf("%s %s %s %s\n", framework, model, config, output);
FrameworkRegistry registry = FrameworkRegistry.getInstance();
Set frameworks = registry.getFrameworks();
if(frameworks.contains(framework)) {
Generator generator = registry.getGenerator(framework);
Object anyModel = null;
// model can be empty in some cases.
if(model != null) {
// check if model is json or not before loading.
if(model.endsWith("json")) {
if(Utils.isUrl(model)) {
anyModel = JsonIterator.deserialize(Utils.urlToByteArray(new URL(model)));
} else {
anyModel = JsonIterator.deserialize(Files.readAllBytes(Paths.get(model)));
}
} else {
if(Utils.isUrl(model)) {
anyModel = new String(Utils.urlToByteArray(new URL(model)), StandardCharsets.UTF_8);
} else {
anyModel = new String(Files.readAllBytes(Paths.get(model)), StandardCharsets.UTF_8);
}
}
}
Any anyConfig = null;
if(config != null) {
if(Utils.isUrl(config)) {
anyConfig = JsonIterator.deserialize(Utils.urlToByteArray(new URL(config)));
} else {
anyConfig = JsonIterator.deserialize(Files.readAllBytes(Paths.get(config)));
}
}
if(parameterizationDir != null) {
YAMLFileParameterizer.rewriteAll(parameterizationDir, output + separator + YAMLFileParameterizer.DEFAULT_DEST_DIR, anyConfig.asMap().get(YAMLFileParameterizer.GENERATE_ENV_VARS).asMap());
}
generator.generate(output, anyModel, anyConfig);
System.out.println("A project has been generated successfully in " + output + " folder. Have fun!!!");
} else {
System.out.printf("Invalid framework: %s\navaliable frameworks:\n", framework);
for(String frm : frameworks) {
System.out.println("\t"+frm);
}
}
}
}
