Package org.apache.airavata.gfac.provider

Examples of org.apache.airavata.gfac.provider.GFacProvider

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            invokeInFlowHandlers(jobExecutionContext);


            // After executing the in handlers provider instance should be set to job execution context.
            // We get the provider instance and execute it.
            GFacProvider provider = jobExecutionContext.getProvider();
            if (provider != null) {
                initProvider(provider, jobExecutionContext);
                executeProvider(provider, jobExecutionContext);
                disposeProvider(provider, jobExecutionContext);
            }
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            invokeInFlowHandlers(jobExecutionContext);


            // After executing the in handlers provider instance should be set to job execution context.
            // We get the provider instance and execute it.
            GFacProvider provider = jobExecutionContext.getProvider();
            if (provider != null) {
                initProvider(provider, jobExecutionContext);
                executeProvider(provider, jobExecutionContext);
                disposeProvider(provider, jobExecutionContext);
            }
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            invokeInFlowHandlers(jobExecutionContext);


            // After executing the in handlers provider instance should be set to job execution context.
            // We get the provider instance and execute it.
            GFacProvider provider = jobExecutionContext.getProvider();
            if (provider != null) {
                initProvider(provider, jobExecutionContext);
                executeProvider(provider, jobExecutionContext);
                disposeProvider(provider, jobExecutionContext);
            }
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            invokeInFlowHandlers(jobExecutionContext);


            // After executing the in handlers provider instance should be set to job execution context.
            // We get the provider instance and execute it.
            GFacProvider provider = jobExecutionContext.getProvider();
            if (provider != null) {
                initProvider(provider, jobExecutionContext);
                executeProvider(provider, jobExecutionContext);
                disposeProvider(provider, jobExecutionContext);
            }
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     */
    private static GFacProvider getProvider(JobExecutionContext jobExecutionContext) throws GFacException {
        HostDescription hostDescription = jobExecutionContext.getApplicationContext().getHostDescription();
        String applicationName = jobExecutionContext.getServiceName();
        GFacProviderConfig s = null;
        GFacProvider provider = null;
        List<GFacProviderConfig> aClass = null;
        String providerClassName = null;
        try {
            aClass = GFacConfiguration.getProviderConfig(GFacConfiguration.getHandlerDoc(),
                    Constants.XPATH_EXPR_APPLICATION_HANDLERS_START + applicationName + "']", Constants.GFAC_CONFIG_APPLICATION_NAME_ATTRIBUTE);
            // This should be have a single element only.
            if (aClass != null && !aClass.isEmpty()) {
                s = aClass.get(0);
                Class<? extends GFacProvider> aClass1 = Class.forName(s.getClassName()).asSubclass(GFacProvider.class);
                provider = aClass1.newInstance();
                //loading the provider properties
                if(!aClass.isEmpty()){
                    provider.initProperties(aClass.get(0).getProperties());
                }
            }
            // We give higher preference to applications specific provider if configured
            if (provider == null) {
                String hostClass = hostDescription.getType().getClass().getName();
                providerClassName = GFacConfiguration.getProviderClassName(GFacConfiguration.getHandlerDoc(), Constants.XPATH_EXPR_PROVIDER_ON_HOST + hostClass + "']", Constants.GFAC_CONFIG_CLASS_ATTRIBUTE);
                Class<? extends GFacProvider> aClass1 = Class.forName(providerClassName).asSubclass(GFacProvider.class);
                provider = aClass1.newInstance();
                //loading the provider properties
                aClass = GFacConfiguration.getProviderConfig(GFacConfiguration.getHandlerDoc(), Constants.XPATH_EXPR_PROVIDER_HANDLERS_START +
                        providerClassName + "']", Constants.GFAC_CONFIG_APPLICATION_NAME_ATTRIBUTE);
                if(!aClass.isEmpty()){
                    provider.initProperties(aClass.get(0).getProperties());
                }
            }
        } catch (XPathExpressionException e) {
            log.error("Error evaluating XPath expression");  //To change body of catch statement use File | Settings | File Templates.
            throw new GFacException("Error evaluating XPath expression", e);
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            invokeInFlowHandlers(jobExecutionContext);


            // After executing the in handlers provider instance should be set to job execution context.
            // We get the provider instance and execute it.
            GFacProvider provider = jobExecutionContext.getProvider();
            if (provider != null) {
                initProvider(provider, jobExecutionContext);
                executeProvider(provider, jobExecutionContext);
                disposeProvider(provider, jobExecutionContext);
            }
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Related Classes of org.apache.airavata.gfac.provider.GFacProvider

  • org.apache.airavata.gfac.GFacAPI
  • org.apache.airavata.gfac.Scheduler
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