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package bjc.imgchain.pipeline;
import java.awt.Image;
import java.util.ArrayList;
import java.util.List;
/**
* An editable {@link Pipeline}
*
* @author acm
*
*/
public class MutablePipeline implements Pipeline {
private final List<PipelineStage> stages;
private String name;
/**
* Create a new unnamed mutable pipeline.
*/
public MutablePipeline() {
stages = new ArrayList<>();
name = "Unnamed Pipeline";
}
/**
* Create a new named mutable pipeline.
*
* @param name
* The name of the pipeline.
*/
public MutablePipeline(String name) {
stages = new ArrayList<>();
this.name = name;
}
@Override
public Image process(Image input) {
Image proc = input;
for (PipelineStage stage : stages) {
System.out.println("Applying stage " + stage.name());
proc = stage.process(proc);
System.out.println("Applied stage " + stage.name());
}
return proc;
}
@Override
public List<PipelineStage> stages() {
return stages;
}
@Override
public String name() {
return name;
}
/**
* Set the name of the pipeline.
*
* @param nam
* The name of the pipeline.
*/
public void name(String nam) {
name = nam;
}
/**
* Append a pipeline stage to the end of this pipeline.
*
* @param stag
* The stage to add.
*/
public void addStage(PipelineStage stag) {
stages.add(stag);
}
/**
* Remove a pipeline stage.
*
* @param stag
* The stage to remove.
*/
public void removeStage(PipelineStage stag) {
stages.remove(stag);
}
/**
* Remove a pipeline stage by index.
*
* @param idx
* The index of the stage to remove.
*/
public void removeStage(int idx) {
stages.remove(idx);
}
}
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