package org.jboss.seam.drools;
import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;
import org.jboss.seam.ScopeType;
import org.jboss.seam.annotations.Create;
import org.jboss.seam.annotations.Scope;
import org.jboss.seam.annotations.Unwrap;
import org.jboss.seam.annotations.intercept.BypassInterceptors;
import org.jboss.seam.log.LogProvider;
import org.jboss.seam.log.Logging;
import org.jboss.seam.util.Resources;
/**
* Manager component for a rule base loaded from a drools RulesAgent
*/
@Scope(ScopeType.APPLICATION)
@BypassInterceptors
public class RuleAgent
{
private static final LogProvider log = Logging.getLogProvider(RuleAgent.class);
private org.drools.agent.RuleAgent agent;
private String configurationFile;
private String newInstance;
private String files;
private String url;
private String localCacheDir;
private String poll;
private String configName;
@Create
public void createAgent() throws Exception
{
Properties properties = new Properties();
loadFromPath(properties, configurationFile);
setLocalProperties(properties);
agent = org.drools.agent.RuleAgent.newRuleAgent(properties);
log.debug("Creating new rules agent");
}
protected void setLocalProperties(Properties properties)
{
if (newInstance != null) {
properties.setProperty(org.drools.agent.RuleAgent.NEW_INSTANCE, newInstance);
}
if (files != null) {
properties.setProperty(org.drools.agent.RuleAgent.FILES, files);
}
if (url != null) {
properties.setProperty(org.drools.agent.RuleAgent.URLS, url);
}
if (localCacheDir != null) {
properties.setProperty(org.drools.agent.RuleAgent.LOCAL_URL_CACHE, localCacheDir);
}
if (poll != null) {
properties.setProperty(org.drools.agent.RuleAgent.POLL_INTERVAL, poll);
}
if (configName != null) {
properties.setProperty(org.drools.agent.RuleAgent.CONFIG_NAME, configName);
}
}
protected void loadFromPath(Properties properties, String configurationFile)
throws IOException
{
if (configurationFile != null) {
InputStream inputStream = Resources.getResourceAsStream(configurationFile, null);
if (inputStream != null) {
try {
properties.load(inputStream);
} finally {
inputStream.close();
}
}
}
}
@Unwrap
public org.drools.RuleBase getRuleBase()
{
return agent.getRuleBase();
}
public String getNewInstance()
{
return newInstance;
}
public void setNewInstance(String newInstance)
{
this.newInstance = newInstance;
}
public String getFiles()
{
return files;
}
public void setFiles(String files)
{
this.files = files;
}
public String getUrl()
{
return url;
}
public void setUrl(String url)
{
this.url = url;
}
public String getLocalCacheDir()
{
return localCacheDir;
}
public void setLocalCacheDir(String localCacheDir)
{
this.localCacheDir = localCacheDir;
}
public String getPoll()
{
return poll;
}
public void setPoll(String poll)
{
this.poll = poll;
}
public String getConfigName()
{
return configName;
}
public void setConfigName(String name)
{
this.configName = name;
}
public String getConfigurationFile()
{
return configurationFile;
}
public void setConfigurationFile(String brmsConfig)
{
this.configurationFile = brmsConfig;
}
}