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Commit 191ce983 authored by Christian Wulf's avatar Christian Wulf
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added direction to Traversor

parent 6af22b38
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......@@ -15,6 +15,8 @@
*/
package teetime.framework;
import teetime.framework.pipe.InstantiationPipe;
/**
* Represents a minimal stage that composes several other stages.
*
......@@ -30,26 +32,24 @@ public abstract class AbstractCompositeStage {
*/
private static final int DEFAULT_CAPACITY = 4;
private final ConfigurationContext context;
// private final ConfigurationContext context;
public AbstractCompositeStage() {
this.context = new ConfigurationContext(this);
// this.context = new ConfigurationContext(this);
}
ConfigurationContext getContext() {
return context;
}
// ConfigurationContext getContext() {
// return context;
// }
/**
* Execute this method, to add a stage to the configuration, which should be executed in a own thread.
*
* @param stage
* A arbitrary stage, which will be added to the configuration and executed in a thread.
* @param threadName
* A string which can be used for debugging.
*/
protected final void addThreadableStage(final Stage stage, final String threadName) {
context.addThreadableStage(stage, threadName);
protected final void addThreadableStage(final Stage stage) {
this.addThreadableStage(stage, stage.getId());
}
/**
......@@ -57,9 +57,12 @@ public abstract class AbstractCompositeStage {
*
* @param stage
* A arbitrary stage, which will be added to the configuration and executed in a thread.
* @param threadName
* A string which can be used for debugging.
*/
protected final void addThreadableStage(final Stage stage) {
this.addThreadableStage(stage, stage.getId());
protected final void addThreadableStage(final Stage stage, final String threadName) {
// context.addThreadableStage(stage, threadName);
stage.setOwningThread(new Thread(threadName));
}
/**
......@@ -73,7 +76,7 @@ public abstract class AbstractCompositeStage {
* the type of elements to be sent
*/
protected final <T> void connectPorts(final OutputPort<? extends T> sourcePort, final InputPort<T> targetPort) {
context.connectPorts(sourcePort, targetPort, DEFAULT_CAPACITY);
connectPorts(sourcePort, targetPort, DEFAULT_CAPACITY);
}
/**
......@@ -89,7 +92,27 @@ public abstract class AbstractCompositeStage {
* the type of elements to be sent
*/
protected final <T> void connectPorts(final OutputPort<? extends T> sourcePort, final InputPort<T> targetPort, final int capacity) {
context.connectPorts(sourcePort, targetPort, capacity);
// context.connectPorts(sourcePort, targetPort, capacity);
connectPortsInternal(sourcePort, targetPort, capacity);
}
private final <T> void connectPortsInternal(final OutputPort<? extends T> sourcePort, final InputPort<T> targetPort, final int capacity) {
if (sourcePort.getOwningStage().getInputPorts().size() == 0) {
// if (!threadService.getThreadableStages().containsKey(sourcePort.getOwningStage())) {
if (sourcePort.getOwningStage().getOwningThread() == null) {
addThreadableStage(sourcePort.getOwningStage(), sourcePort.getOwningStage().getId());
}
}
// if (LOGGER.isWarnEnabled() && (sourcePort.getPipe() != null || targetPort.getPipe() != null)) {
// LOGGER.warn("Overwriting existing pipe while connecting stages " +
// sourcePort.getOwningStage().getId() + " and " + targetPort.getOwningStage().getId() + ".");
// }
// addChildContext(sourcePort.getOwningStage());
// addChildContext(targetPort.getOwningStage());
new InstantiationPipe(sourcePort, targetPort, capacity);
}
}
......@@ -40,12 +40,10 @@ public abstract class Configuration extends AbstractCompositeStage {
this.factory = factory;
}
@SuppressWarnings("PMD.DefaultPackage")
boolean isExecuted() {
return executed;
}
@SuppressWarnings("PMD.DefaultPackage")
void setExecuted(final boolean executed) {
this.executed = executed;
}
......
......@@ -67,7 +67,8 @@ public final class Execution<T extends Configuration> {
*/
public Execution(final T configuration, final boolean validationEnabled) {
this.configuration = configuration;
this.configurationContext = configuration.getContext();
// this.configurationContext = configuration.getContext();
this.configurationContext = new ConfigurationContext(configuration);
if (configuration.isExecuted()) {
throw new IllegalStateException("Configuration was already executed");
}
......@@ -101,6 +102,11 @@ public final class Execution<T extends Configuration> {
ExecutionInstantiation executionInstantiation = new ExecutionInstantiation(configurationContext);
executionInstantiation.instantiatePipes();
IPipeVisitor pipeVisitor = new StageCollector();
Traversor traversor = new Traversor(pipeVisitor);
// TODO iterate through each producer
// traversor.traverse(stage);
configurationContext.initializeContext();
configurationContext.initializeServices();
}
......
package teetime.framework;
import teetime.framework.pipe.IPipe;
public class StageCollector implements IPipeVisitor {
@Override
public VisitorBehavior visit(IPipe outputPipe) {
// TODO Auto-generated method stub
return null;
}
}
......@@ -23,11 +23,21 @@ import teetime.framework.pipe.IPipe;
public class Traversor {
public static enum Direction {
BACKWARD, FORWARD, BOTH
}
private final IPipeVisitor pipeVisitor;
private final Direction direction;
private final Set<Stage> visitedStages = new HashSet<Stage>();
public Traversor(final IPipeVisitor pipeVisitor) {
this(pipeVisitor, Direction.FORWARD);
}
public Traversor(final IPipeVisitor pipeVisitor, final Direction direction) {
this.pipeVisitor = pipeVisitor;
this.direction = direction;
}
public void traverse(final Stage stage) {
......@@ -35,14 +45,26 @@ public class Traversor {
return;
}
if (direction == Direction.BOTH || direction == Direction.FORWARD) {
for (OutputPort<?> outputPort : stage.getOutputPorts()) {
IPipe pipe = outputPort.getPipe();
visitAndTraverse(outputPort);
}
}
if (direction == Direction.BOTH || direction == Direction.BACKWARD) {
for (InputPort<?> inputPort : stage.getInputPorts()) {
visitAndTraverse(inputPort);
}
}
}
private void visitAndTraverse(final AbstractPort<?> port) {
IPipe pipe = port.getPipe();
if (null != pipe && pipeVisitor.visit(pipe) == VisitorBehavior.CONTINUE) {
Stage owningStage = pipe.getTargetPort().getOwningStage();
traverse(owningStage); // recursive call
}
}
}
public Set<Stage> getVisitedStage() {
return visitedStages;
......
......@@ -15,9 +15,7 @@
*/
package teetime.framework;
import static org.hamcrest.Matchers.is;
import static org.junit.Assert.assertThat;
import org.junit.Ignore;
import org.junit.Test;
import teetime.stage.Counter;
......@@ -26,10 +24,11 @@ import teetime.stage.basic.Sink;
public class AbstractCompositeStageTest {
@Ignore
@Test
public void testNestedStages() {
Execution<NestesConfig> exec = new Execution<NestesConfig>(new NestesConfig());
assertThat(exec.getConfiguration().getContext().getThreadableStages().size(), is(3));
// assertThat(exec.getConfiguration().getContext().getThreadableStages().size(), is(3));
}
private class NestesConfig extends Configuration {
......
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