Package org.apache.airavata.gfac.core.provider

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

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//                registry2.changeStatus(jobExecutionContext.getExperimentID(),AiravataJobState.State.INHANDLERSDONE);
//            }

            // 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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            throw new GFacException(e.getMessage(), e);
        }
    }

    private void invokeProvider(JobExecutionContext jobExecutionContext) throws GFacException, ApplicationSettingsException, InterruptedException, KeeperException {
        GFacProvider provider = jobExecutionContext.getProvider();
        if (provider != null) {
            monitorPublisher.publish(new GfacExperimentStateChangeRequest(new MonitorID(jobExecutionContext), GfacExperimentState.PROVIDERINVOKING));
            GFacUtils.createPluginZnode(zk, jobExecutionContext, provider.getClass().getName());
            initProvider(provider, jobExecutionContext);
            executeProvider(provider, jobExecutionContext);
            disposeProvider(provider, jobExecutionContext);
            GFacUtils.updatePluginState(zk, jobExecutionContext, provider.getClass().getName(), GfacPluginState.COMPLETED);
            monitorPublisher.publish(new GfacExperimentStateChangeRequest(new MonitorID(jobExecutionContext), GfacExperimentState.PROVIDERINVOKED));
        }
        if (GFacUtils.isSynchronousMode(jobExecutionContext)) {
            invokeOutFlowHandlers(jobExecutionContext);
        }
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            invokeOutFlowHandlers(jobExecutionContext);
        }
    }

    private void reInvokeProvider(JobExecutionContext jobExecutionContext) throws GFacException, GFacProviderException, ApplicationSettingsException, InterruptedException, KeeperException {
        GFacProvider provider = jobExecutionContext.getProvider();
        if (provider != null) {
            monitorPublisher.publish(new GfacExperimentStateChangeRequest(new MonitorID(jobExecutionContext), GfacExperimentState.PROVIDERINVOKING));
            String plState = GFacUtils.getPluginState(zk, jobExecutionContext, provider.getClass().getName());
            if (Integer.valueOf(plState) >= GfacPluginState.INVOKED.getValue()) {    // this will make sure if a plugin crashes it will not launch from the scratch, but plugins have to save their invoked state
                if (provider instanceof GFacRecoverableProvider) {
                    GFacUtils.createPluginZnode(zk, jobExecutionContext, provider.getClass().getName());
                    ((GFacRecoverableProvider) provider).recover(jobExecutionContext);
                    GFacUtils.updatePluginState(zk, jobExecutionContext, provider.getClass().getName(), GfacPluginState.COMPLETED);
                }
            } else {
                GFacUtils.createPluginZnode(zk, jobExecutionContext, provider.getClass().getName());
                initProvider(provider, jobExecutionContext);
                executeProvider(provider, jobExecutionContext);
                disposeProvider(provider, jobExecutionContext);
                GFacUtils.updatePluginState(zk, jobExecutionContext, provider.getClass().getName(), GfacPluginState.COMPLETED);
            }
            monitorPublisher.publish(new GfacExperimentStateChangeRequest(new MonitorID(jobExecutionContext), GfacExperimentState.PROVIDERINVOKED));
        }

        if (GFacUtils.isSynchronousMode(jobExecutionContext))
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            throw new GFacException(e);
        } catch (IOException e) {
            throw new GFacException(e);
        }
        GFacProviderConfig s = null;
        GFacProvider provider = null;
        List<GFacProviderConfig> aClass = null;
        String providerClassName = null;
        try {
            aClass = GFacConfiguration.getProviderConfig(handlerDoc,
                    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.getAttributeValue(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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//                registry2.changeStatus(jobExecutionContext.getExperimentID(),AiravataJobState.State.INHANDLERSDONE);
//            }

            // 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.core.provider.GFacProvider

  • org.apache.airavata.gfac.core.cpi.BetterGfacImpl
  • org.apache.airavata.gfac.core.cpi.GFacImpl
  • org.apache.airavata.gfac.Scheduler
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