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Example 51 with KnowledgeBase

use of org.drools.KnowledgeBase in project Activiti by Activiti.

the class RulesDeployer method deploy.

public void deploy(DeploymentEntity deployment, Map<String, Object> deploymentSettings) {
    log.debug("Processing deployment {}", deployment.getName());
    KnowledgeBuilder knowledgeBuilder = null;
    DeploymentManager deploymentManager = Context.getProcessEngineConfiguration().getDeploymentManager();
    Map<String, ResourceEntity> resources = deployment.getResources();
    for (String resourceName : resources.keySet()) {
        log.info("Processing resource {}", resourceName);
        if (resourceName.endsWith(".drl")) {
            // is only parsing .drls sufficient? what about other rule dsl's? (@see ResourceType)
            if (knowledgeBuilder == null) {
                knowledgeBuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
            }
            ResourceEntity resourceEntity = resources.get(resourceName);
            byte[] resourceBytes = resourceEntity.getBytes();
            Resource droolsResource = ResourceFactory.newByteArrayResource(resourceBytes);
            knowledgeBuilder.add(droolsResource, ResourceType.DRL);
        }
    }
    if (knowledgeBuilder != null) {
        KnowledgeBase knowledgeBase = knowledgeBuilder.newKnowledgeBase();
        deploymentManager.getKnowledgeBaseCache().add(deployment.getId(), knowledgeBase);
    }
}
Also used : KnowledgeBuilder(org.drools.builder.KnowledgeBuilder) KnowledgeBase(org.drools.KnowledgeBase) DeploymentManager(org.activiti.engine.impl.persistence.deploy.DeploymentManager) ResourceEntity(org.activiti.engine.impl.persistence.entity.ResourceEntity) Resource(org.drools.io.Resource)

Example 52 with KnowledgeBase

use of org.drools.KnowledgeBase in project sling by apache.

the class AbstractUsingBundleListMojo method createKnowledgeBase.

private KnowledgeBase createKnowledgeBase(File[] files) throws MojoExecutionException {
    KnowledgeBuilder builder = KnowledgeBuilderFactory.newKnowledgeBuilder();
    builder.add(ResourceFactory.newClassPathResource("drools-globals.drl", getClass()), ResourceType.DRL);
    for (File file : files) {
        getLog().info("Parsing rule file " + file.getAbsolutePath());
        builder.add(ResourceFactory.newFileResource(file), ResourceType.DRL);
    }
    if (builder.hasErrors()) {
        getLog().error("Rule errors:");
        for (KnowledgeBuilderError error : builder.getErrors()) {
            getLog().error(error.toString());
        }
        throw new MojoExecutionException("Unable to create rules. See log for details.");
    }
    KnowledgeBase base = KnowledgeBaseFactory.newKnowledgeBase();
    base.addKnowledgePackages(builder.getKnowledgePackages());
    return base;
}
Also used : KnowledgeBuilderError(org.drools.builder.KnowledgeBuilderError) KnowledgeBuilder(org.drools.builder.KnowledgeBuilder) MojoExecutionException(org.apache.maven.plugin.MojoExecutionException) KnowledgeBase(org.drools.KnowledgeBase) File(java.io.File)

Aggregations

KnowledgeBase (org.drools.KnowledgeBase)52 KnowledgeBuilder (org.drools.builder.KnowledgeBuilder)48 KnowledgeBuilderError (org.drools.builder.KnowledgeBuilderError)47 ClassPathResource (org.drools.io.impl.ClassPathResource)45 StatefulKnowledgeSession (org.drools.runtime.StatefulKnowledgeSession)28 HashMap (java.util.HashMap)20 ProcessInstance (org.drools.runtime.process.ProcessInstance)20 Person (com.salaboy.model.Person)16 Test (org.junit.Test)13 DefaultProcessEventListener (org.drools.event.process.DefaultProcessEventListener)11 DefaultAgendaEventListener (org.drools.event.rule.DefaultAgendaEventListener)11 KnowledgeBuilderErrors (org.drools.builder.KnowledgeBuilderErrors)9 QueryResults (org.drools.runtime.rule.QueryResults)9 Resources (com.salaboy.model.Resources)6 EntityManagerFactory (javax.persistence.EntityManagerFactory)6 ProcessNodeLeftEvent (org.drools.event.process.ProcessNodeLeftEvent)6 Customer (com.salaboy.model.Customer)5 RatesToday (com.salaboy.model.RatesToday)5 KnowledgeBaseConfiguration (org.drools.KnowledgeBaseConfiguration)5 FactHandle (org.drools.runtime.rule.FactHandle)5