1 files changed, 140 insertions, 0 deletions
diff --git a/dcaedt_be/src/main/java/org/onap/sdc/dcae/composition/CompositionEngine.java b/dcaedt_be/src/main/java/org/onap/sdc/dcae/composition/CompositionEngine.java
new file mode 100644
index 0000000..186f3f6
--- /dev/null
+++ b/dcaedt_be/src/main/java/org/onap/sdc/dcae/composition/CompositionEngine.java
@@ -0,0 +1,140 @@
+package org.onap.sdc.dcae.composition;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Properties;
+import java.util.jar.Attributes;
+import java.util.jar.Manifest;
+
+import javax.servlet.ServletContext;
+
+import org.onap.sdc.common.onaplog.OnapLoggerDebug;
+import org.onap.sdc.common.onaplog.OnapLoggerError;
+import org.onap.sdc.common.onaplog.Enums.LogLevel;
+import org.onap.sdc.dcae.composition.util.SystemProperties;
+import org.onap.sdc.dcae.filter.LoggingFilter;
+import org.onap.sdc.dcae.errormng.ErrConfMgr;
+import org.onap.sdc.dcae.errormng.ErrorConfiguration;
+import org.onap.sdc.dcae.errormng.ErrorConfigurationLoader;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.CommandLineRunner;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.builder.SpringApplicationBuilder;
+import org.springframework.boot.web.servlet.FilterRegistrationBean;
+import org.springframework.boot.web.support.SpringBootServletInitializer;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.ComponentScan;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.PropertySource;
+import org.springframework.scheduling.annotation.EnableScheduling;
+import org.springframework.web.servlet.config.annotation.CorsRegistry;
+import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
+import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
+
+@Configuration
+@EnableScheduling
+@SpringBootApplication
+@ComponentScan("org.onap.sdc.dcae")
+@EnableAutoConfiguration
+@PropertySource("file:${jetty.base}/config/dcae-be/application.properties")
+public class CompositionEngine extends SpringBootServletInitializer implements CommandLineRunner{
+	private static final String SPECIFICATION_VERSION = "Specification-Version";
+	@Autowired
+	ServletContext servletContext;
+	private static final String MANIFEST_FILE_NAME = "/META-INF/MANIFEST.MF";
+	private static String dcaeVersion;
+	private OnapLoggerError errLogger = OnapLoggerError.getInstance();
+	private OnapLoggerDebug debugLogger = OnapLoggerDebug.getInstance();
+
+	public static void main(String[] args) {
+		SpringApplication.run(CompositionEngine.class, args);
+	}
+	
+	/**
+	 * Creates and returns a new instance of a {@link SystemProperties} class.
+	 * 
+	 * @return New instance of {@link SystemProperties}.
+	 */
+	@Override
+    protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
+        return application.sources(CompositionEngine.class);
+    }
+   
+	
+	@Bean
+    public WebMvcConfigurer corsConfigurer() {
+        return new WebMvcConfigurerAdapter() {
+            @Override
+            public void addCorsMappings(CorsRegistry registry) {
+                registry.addMapping("/**")
+                		.allowedOrigins("*")
+                		.allowedHeaders("*")
+                		.allowedMethods("GET", "POST", "OPTIONS", "PUT")
+                		.allowCredentials(false)
+                		.maxAge(3600);
+                		
+            }
+        };
+    }
+
+	@Override
+	public void run(String... args) throws Exception {
+
+		ErrorConfigurationLoader errorConfigurationLoader = new ErrorConfigurationLoader(System.getProperty("jetty.base"));
+		ErrConfMgr instance = ErrConfMgr.INSTANCE;
+		InputStream inputStream = servletContext.getResourceAsStream(MANIFEST_FILE_NAME);
+
+		//setLogbackXmlLocation();
+
+		String version = null;
+		try {
+			Manifest mf = new Manifest(inputStream);
+			Attributes atts = mf.getMainAttributes();
+			version = atts.getValue(SPECIFICATION_VERSION);
+			if (version == null || version.isEmpty()) {
+				errLogger.log(LogLevel.ERROR, this.getClass().getName(), "failed to read DCAE version from MANIFEST.");
+			} else {
+				debugLogger.log(LogLevel.DEBUG, this.getClass().getName(), "DCAE version from MANIFEST is {}", version);
+				dcaeVersion = version;
+			}
+
+		} catch (IOException e) {
+			errLogger.log(LogLevel.ERROR, this.getClass().getName(), "failed to read DCAE version from MANIFEST: {}", e.getMessage());
+		}
+		
+	}
+
+	private void setLogbackXmlLocation() throws Exception {
+		String jettyBase = System.getProperty("config.home");
+		Properties props = System.getProperties();
+		debugLogger.log(LogLevel.DEBUG, this.getClass().getName(), "Current System Properties are: {}", props);
+		if (jettyBase == null) {
+			String msg = "Couldn't resolve config.home environmental variable";
+			errLogger.log(LogLevel.ERROR, this.getClass().getName(), msg);
+			throw new Exception(msg + ". Failed to configure logback.xml location... aborting.");
+		}
+		String logbackXmlLocation = jettyBase+"/dcae-be/logback.xml";
+		props.setProperty("logback.configurationFile", logbackXmlLocation);
+		debugLogger.log(LogLevel.DEBUG, this.getClass().getName(), "Successfuly set the logback.xml location to {}", logbackXmlLocation);
+	}
+
+    @Bean
+    public FilterRegistrationBean contextLifecycleFilter() {
+        Collection<String> urlPatterns = new ArrayList<>();
+        urlPatterns.add("/*");
+
+        FilterRegistrationBean filterRegistrationBean = new FilterRegistrationBean(new LoggingFilter());
+        filterRegistrationBean.setUrlPatterns(urlPatterns);
+
+        return filterRegistrationBean;
+    }
+
+	public static String getDcaeVersion() {
+		return dcaeVersion;
+	}
+	
+}