| package org.apache.stanbol.enhancer.engines.lucenefstlinking; |
| |
| import org.apache.commons.lang.ArrayUtils; |
| import org.opensextant.solrtexttagger.TagClusterReducer; |
| import org.opensextant.solrtexttagger.TagLL; |
| import org.opensextant.solrtexttagger.Tagger; |
| |
| /** |
| * Allow to use multiple {@link TagClusterReducer} with a {@link Tagger} |
| * instance. |
| * @author Rupert Westenthaler |
| * |
| */ |
| public class ChainedTagClusterReducer implements TagClusterReducer { |
| |
| private final TagClusterReducer[] reducers; |
| |
| public ChainedTagClusterReducer(TagClusterReducer... reducers){ |
| if(reducers == null || reducers == null || ArrayUtils.contains(reducers, null)){ |
| throw new IllegalArgumentException("The parsed TagClusterReducers MUST NOT" |
| + "be NULL an emoty array or contain any NULL element!"); |
| } |
| this.reducers = reducers; |
| } |
| |
| @Override |
| public void reduce(TagLL[] head) { |
| for(TagClusterReducer reducer : reducers){ |
| if(head[0] == null){ |
| return; //no more tags left |
| } |
| reducer.reduce(head); |
| } |
| |
| } |
| |
| } |