// This software is released into the Public Domain. See copying.txt for details.
package org.openstreetmap.osmosis.core.pipeline.v0_6;
import java.util.Map;
import org.openstreetmap.osmosis.core.pipeline.common.PassiveTaskManager;
import org.openstreetmap.osmosis.core.pipeline.common.PipeTasks;
import org.openstreetmap.osmosis.core.task.v0_6.ChangeSinkSource;
import org.openstreetmap.osmosis.core.task.v0_6.ChangeSource;
/**
* A task manager implementation for task performing change sink and source
* functionality.
*
* @author Brett Henderson
*/
public class ChangeSinkSourceManager extends PassiveTaskManager {
private ChangeSinkSource task;
/**
* Creates a new instance.
*
* @param taskId
* A unique identifier for the task. This is used to produce
* meaningful errors when errors occur.
* @param task
* The task instance to be managed.
* @param pipeArgs
* The arguments defining input and output pipes for the task,
* pipes are a logical concept for identifying how the tasks are
* connected together.
*/
public ChangeSinkSourceManager(String taskId,
ChangeSinkSource task, Map<String, String> pipeArgs) {
super(taskId, pipeArgs);
this.task = task;
}
/**
* {@inheritDoc}
*/
@Override
public void connect(PipeTasks pipeTasks) {
ChangeSource source;
// Get the input task. A sink only has one input, this corresponds to
// pipe index 0.
source = (ChangeSource) getInputTask(pipeTasks, 0, ChangeSource.class);
// Cast the input feed to the correct type.
// Connect the tasks.
source.setChangeSink(task);
// Register the task as an output. A source only has one output, this
// corresponds to pipe index 0.
setOutputTask(pipeTasks, task, 0);
}
}