/*
* Copyright 2010 JBoss Inc
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* under the License.
*/
package org.kie.camel.component;
import org.apache.camel.Endpoint;
import org.apache.camel.Exchange;
import org.apache.camel.Message;
import org.apache.camel.RuntimeCamelException;
import org.apache.camel.impl.DefaultProducer;
import org.drools.core.command.impl.GenericCommand;
import org.drools.core.command.runtime.BatchExecutionCommandImpl;
import org.drools.core.util.StringUtils;
import org.kie.api.command.Command;
import org.kie.api.runtime.CommandExecutor;
import org.kie.api.runtime.ExecutionResults;
import java.util.Arrays;
public class KieExecuteProducer extends DefaultProducer {
public KieExecuteProducer(Endpoint endpoint) {
super( endpoint );
}
public void process(Exchange exchange) throws Exception {
KieEndpoint ke = (KieEndpoint) getEndpoint();
Command<?> cmd = exchange.getIn().getBody( Command.class );
if ( cmd == null ) {
throw new RuntimeCamelException( "Body of in message not of the expected type 'org.kie.api.command.Command' for uri" + ke.getEndpointUri() );
}
if ( !(cmd instanceof BatchExecutionCommandImpl) ) {
cmd = new BatchExecutionCommandImpl( Arrays.asList( new GenericCommand< ? >[]{(GenericCommand<?>) cmd} ) );
}
CommandExecutor exec;
ExecutionNodePipelineContextImpl droolsContext = exchange.getProperty( "kie-context",
ExecutionNodePipelineContextImpl.class );
if ( droolsContext != null ) {
exec = droolsContext.getCommandExecutor();
} else {
exec = ke.getExecutor();
if ( exec == null ) {
String lookup = exchange.getIn().getHeader( KieComponent.KIE_LOOKUP,
String.class );
if ( StringUtils.isEmpty(lookup) && (cmd instanceof BatchExecutionCommandImpl) ) {
lookup = ((BatchExecutionCommandImpl) cmd).getLookup();
}
if ( !StringUtils.isEmpty( lookup ) ) {
exec = ke.getComponent().getCamelContext().getRegistry().lookup( lookup,
CommandExecutor.class );
if ( exec == null ) {
throw new RuntimeException( "ExecutionNode is unable to find ksession=" + lookup + " for uri" + ke.getEndpointUri() );
}
} else {
throw new RuntimeException( "No ExecutionNode, unable to find ksession=" + lookup + " for uri" + ke.getEndpointUri() );
}
}
}
if ( exec == null ) {
throw new RuntimeException( "No defined ksession for uri " + ke.getEndpointUri() );
}
ExecutionResults results = exec.execute( (BatchExecutionCommandImpl) cmd );
exchange.getIn().setBody( results );
}
}