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annotate lucene/src/luan/modules/lucene/FieldTable.java @ 234:b25feac318d8

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add lucene jar and minor changes git-svn-id: https://luan-java.googlecode.com/svn/trunk@235 21e917c8-12df-6dd8-5cb6-c86387c605b9
author fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
date Thu, 02 Oct 2014 20:08:39 +0000
parents ef39bc4d3f70
children 3e68917a0dc6
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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1 package luan.modules.lucene;
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3 import java.util.Map;
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4 import java.util.HashMap;
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5 import java.util.concurrent.ConcurrentHashMap;
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6 import java.util.Iterator;
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7 import luan.AbstractLuanTable;
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10 class FieldTable extends AbstractLuanTable {
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11 final Map<String,String> map = new ConcurrentHashMap<String,String>();
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12 final Map<String,String> reverseMap = new ConcurrentHashMap<String,String>();
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14 FieldTable() {
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15 put("type","type index");
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16 put("id","id index");
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17 }
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19 @Override public void put(Object key,Object value) {
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20 if( !(key instanceof String) )
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21 throw new UnsupportedOperationException("key must be string");
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22 String name = (String)key;
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23 if( value==null ) { // delete
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24 reverseMap.remove(map.remove(name));
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25 return;
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26 }
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27 if( !(value instanceof String) )
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28 throw new UnsupportedOperationException("value must be string");
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29 String field = (String)value;
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30 String oldField = map.put(name,field);
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31 if( oldField != null )
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32 reverseMap.remove(oldField);
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33 String oldName = reverseMap.put(field,name);
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34 if( oldName != null ) {
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35 reverseMap.put(field,oldName);
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36 map.remove(name);
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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37 throw new IllegalArgumentException("field '"+oldName+"' is already assigned to '"+field+"'");
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38 }
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39 }
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41 @Override public final Object get(Object key) {
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42 return map.get(key);
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43 }
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44
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45 @Override public final Iterator<Map.Entry<Object,Object>> iterator() {
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46 return new HashMap<Object,Object>(map).entrySet().iterator();
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47 }
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49 @Override protected String type() {
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50 return "lucene-field-table";
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51 }
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52 }