/*
* Copyright 2002-2013 the original author or authors.
*
* 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.
*/
package org.springframework.data.gemfire.function.execution;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import com.gemstone.gemfire.cache.execute.Execution;
import com.gemstone.gemfire.cache.execute.Function;
import com.gemstone.gemfire.cache.execute.ResultCollector;
/**
*
* The base class for Gemfire function templates used to invoke Gemfire functions
* @author David Turanski
*
*/
abstract class AbstractFunctionTemplate implements GemfireFunctionOperations {
protected Log log = LogFactory.getLog(this.getClass());
protected long timeout;
protected volatile ResultCollector<?, ?> resultCollector;
@Override
public <T> Iterable<T> execute(Function function, Object... args) {
AbstractFunctionExecution functionExecution = getFunctionExecution()
.setArgs(args)
.setFunction(function);
return execute(functionExecution);
}
@Override
public <T> T executeAndExtract(Function function, Object... args) {
AbstractFunctionExecution functionExecution = getFunctionExecution()
.setArgs(args)
.setFunction(function);
return this.<T> executeAndExtract(functionExecution);
}
@Override
public <T> Iterable<T> execute(String functionId, Object... args) {
AbstractFunctionExecution functionExecution = getFunctionExecution()
.setArgs(args)
.setFunctionId(functionId);
return execute(functionExecution);
}
@Override
public void executeWithNoResult(String functionId, Object... args) {
AbstractFunctionExecution functionExecution = getFunctionExecution()
.setArgs(args)
.setFunctionId(functionId);
execute(functionExecution,false);
}
@Override
public <T> T executeAndExtract(String functionId, Object... args) {
AbstractFunctionExecution functionExecution = getFunctionExecution()
.setArgs(args)
.setFunctionId(functionId);
return this.<T>executeAndExtract(functionExecution);
}
@Override
public <T> T execute(GemfireFunctionCallback<T> callback) {
Execution execution = getFunctionExecution().getExecution();
return callback.doInGemfire(execution);
}
protected <T> Iterable<T> execute(AbstractFunctionExecution execution) {
execution.setTimeout(timeout)
.setResultCollector(resultCollector);
return execution.execute();
}
protected <T> Iterable<T> execute(AbstractFunctionExecution execution, boolean returnResult) {
execution.setTimeout(timeout)
.setResultCollector(resultCollector);
return execution.execute(returnResult);
}
protected <T> T executeAndExtract(AbstractFunctionExecution execution) {
execution.setTimeout(timeout)
.setResultCollector(resultCollector);
return execution.<T>executeAndExtract();
}
public void setTimeout(long timeout) {
this.timeout = timeout;
}
public void setResultCollector(ResultCollector<?,?> resultCollector) {
this.resultCollector = resultCollector;
}
public ResultCollector<?,?> getResultCollector() {
return this.resultCollector;
}
protected abstract AbstractFunctionExecution getFunctionExecution();
}