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Java StoredFieldVisitor类代码示例

本文整理汇总了Java中org.apache.lucene.index.StoredFieldVisitor类的典型用法代码示例。如果您正苦于以下问题：Java StoredFieldVisitor类的具体用法？Java StoredFieldVisitor怎么用？Java StoredFieldVisitor使用的例子？那么, 这里精选的类代码示例或许可以为您提供帮助。


StoredFieldVisitor类属于org.apache.lucene.index包，在下文中一共展示了StoredFieldVisitor类的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。

示例1: visitDocument

import org.apache.lucene.index.StoredFieldVisitor; //导入依赖的package包/类
@Override
public final void visitDocument(int n, StoredFieldVisitor visitor) throws IOException {
  seekIndex(n);
  fieldsStream.seek(indexStream.readLong());

  final int numFields = fieldsStream.readVInt();
  for (int fieldIDX = 0; fieldIDX < numFields; fieldIDX++) {
    int fieldNumber = fieldsStream.readVInt();
    FieldInfo fieldInfo = fieldInfos.fieldInfo(fieldNumber);
    
    int bits = fieldsStream.readByte() & 0xFF;
    assert bits <= (FIELD_IS_NUMERIC_MASK | FIELD_IS_BINARY): "bits=" + Integer.toHexString(bits);

    switch(visitor.needsField(fieldInfo)) {
      case YES:
        readField(visitor, fieldInfo, bits);
        break;
      case NO: 
        skipField(bits);
        break;
      case STOP: 
        return;
    }
  }
}
开发者ID:lamsfoundation，项目名称:lams，代码行数:26，代码来源:Lucene40StoredFieldsReader.java

示例2: visitDocument

import org.apache.lucene.index.StoredFieldVisitor; //导入依赖的package包/类
public final void visitDocument(int n, StoredFieldVisitor visitor) throws CorruptIndexException, IOException {
  seekIndex(n);
  fieldsStream.seek(indexStream.readLong());

  final int numFields = fieldsStream.readVInt();
  for (int fieldIDX = 0; fieldIDX < numFields; fieldIDX++) {
    int fieldNumber = fieldsStream.readVInt();
    FieldInfo fieldInfo = fieldInfos.fieldInfo(fieldNumber);
    
    int bits = fieldsStream.readByte() & 0xFF;
    assert bits <= (FIELD_IS_NUMERIC_MASK | FIELD_IS_BINARY): "bits=" + Integer.toHexString(bits);

    switch(visitor.needsField(fieldInfo)) {
      case YES:
        readField(visitor, fieldInfo, bits);
        break;
      case NO: 
        skipField(bits);
        break;
      case STOP: 
        return;
    }
  }
}
开发者ID:lamsfoundation，项目名称:lams，代码行数:25，代码来源:Lucene3xStoredFieldsReader.java

示例3: readField

import org.apache.lucene.index.StoredFieldVisitor; //导入依赖的package包/类
private void readField(BytesRef type, FieldInfo fieldInfo, StoredFieldVisitor visitor) throws IOException {
  readLine();
  assert StringHelper.startsWith(scratch.get(), VALUE);
  if (type == TYPE_STRING) {
    visitor.stringField(fieldInfo, new String(scratch.bytes(), VALUE.length, scratch.length()-VALUE.length, StandardCharsets.UTF_8));
  } else if (type == TYPE_BINARY) {
    byte[] copy = new byte[scratch.length()-VALUE.length];
    System.arraycopy(scratch.bytes(), VALUE.length, copy, 0, copy.length);
    visitor.binaryField(fieldInfo, copy);
  } else if (type == TYPE_INT) {
    scratchUTF16.copyUTF8Bytes(scratch.bytes(), VALUE.length, scratch.length()-VALUE.length);
    visitor.intField(fieldInfo, Integer.parseInt(scratchUTF16.toString()));
  } else if (type == TYPE_LONG) {
    scratchUTF16.copyUTF8Bytes(scratch.bytes(), VALUE.length, scratch.length()-VALUE.length);
    visitor.longField(fieldInfo, Long.parseLong(scratchUTF16.toString()));
  } else if (type == TYPE_FLOAT) {
    scratchUTF16.copyUTF8Bytes(scratch.bytes(), VALUE.length, scratch.length()-VALUE.length);
    visitor.floatField(fieldInfo, Float.parseFloat(scratchUTF16.toString()));
  } else if (type == TYPE_DOUBLE) {
    scratchUTF16.copyUTF8Bytes(scratch.bytes(), VALUE.length, scratch.length()-VALUE.length);
    visitor.doubleField(fieldInfo, Double.parseDouble(scratchUTF16.toString()));
  }
}
开发者ID:europeana，项目名称:search，代码行数:24，代码来源:SimpleTextStoredFieldsReader.java

示例4: readField

import org.apache.lucene.index.StoredFieldVisitor; //导入依赖的package包/类
private void readField(BytesRef type, FieldInfo fieldInfo, StoredFieldVisitor visitor) throws IOException {
  readLine();
  assert StringHelper.startsWith(scratch, VALUE);
  if (type == TYPE_STRING) {
    visitor.stringField(fieldInfo, new String(scratch.bytes, scratch.offset+VALUE.length, scratch.length-VALUE.length, "UTF-8"));
  } else if (type == TYPE_BINARY) {
    byte[] copy = new byte[scratch.length-VALUE.length];
    System.arraycopy(scratch.bytes, scratch.offset+VALUE.length, copy, 0, copy.length);
    visitor.binaryField(fieldInfo, copy);
  } else if (type == TYPE_INT) {
    UnicodeUtil.UTF8toUTF16(scratch.bytes, scratch.offset+VALUE.length, scratch.length-VALUE.length, scratchUTF16);
    visitor.intField(fieldInfo, Integer.parseInt(scratchUTF16.toString()));
  } else if (type == TYPE_LONG) {
    UnicodeUtil.UTF8toUTF16(scratch.bytes, scratch.offset+VALUE.length, scratch.length-VALUE.length, scratchUTF16);
    visitor.longField(fieldInfo, Long.parseLong(scratchUTF16.toString()));
  } else if (type == TYPE_FLOAT) {
    UnicodeUtil.UTF8toUTF16(scratch.bytes, scratch.offset+VALUE.length, scratch.length-VALUE.length, scratchUTF16);
    visitor.floatField(fieldInfo, Float.parseFloat(scratchUTF16.toString()));
  } else if (type == TYPE_DOUBLE) {
    UnicodeUtil.UTF8toUTF16(scratch.bytes, scratch.offset+VALUE.length, scratch.length-VALUE.length, scratchUTF16);
    visitor.doubleField(fieldInfo, Double.parseDouble(scratchUTF16.toString()));
  }
}
开发者ID:pkarmstr，项目名称:NYBC，代码行数:24，代码来源:SimpleTextStoredFieldsReader.java

示例5: testOrdering

import org.apache.lucene.index.StoredFieldVisitor; //导入依赖的package包/类
/**
 * Here, we verify that the order that we add fields to a document counts, and not the lexi order
 * of the field. This means that heavily accessed fields that use field selector should be added
 * first (with load and break).
 */
public void testOrdering() throws Exception {
    Directory dir = new RAMDirectory();
    IndexWriter indexWriter = new IndexWriter(dir, new IndexWriterConfig(Lucene.STANDARD_ANALYZER));

    Document document = new Document();
    document.add(new TextField("_id", "1", Field.Store.YES));
    document.add(new TextField("#id", "1", Field.Store.YES));
    indexWriter.addDocument(document);

    IndexReader reader = DirectoryReader.open(indexWriter);
    IndexSearcher searcher = new IndexSearcher(reader);
    TopDocs topDocs = searcher.search(new TermQuery(new Term("_id", "1")), 1);
    final ArrayList<String> fieldsOrder = new ArrayList<>();
    searcher.doc(topDocs.scoreDocs[0].doc, new StoredFieldVisitor() {
        @Override
        public Status needsField(FieldInfo fieldInfo) throws IOException {
            fieldsOrder.add(fieldInfo.name);
            return Status.YES;
        }
    });

    assertThat(fieldsOrder.size(), equalTo(2));
    assertThat(fieldsOrder.get(0), equalTo("_id"));
    assertThat(fieldsOrder.get(1), equalTo("#id"));

    indexWriter.close();
}
开发者ID:justor，项目名称:elasticsearch_my，代码行数:33，代码来源:SimpleLuceneTests.java

示例6: readField

import org.apache.lucene.index.StoredFieldVisitor; //导入依赖的package包/类
private void readField(StoredFieldVisitor visitor, FieldInfo info, int bits) throws IOException {
  final int numeric = bits & FIELD_IS_NUMERIC_MASK;
  if (numeric != 0) {
    switch(numeric) {
      case FIELD_IS_NUMERIC_INT:
        visitor.intField(info, fieldsStream.readInt());
        return;
      case FIELD_IS_NUMERIC_LONG:
        visitor.longField(info, fieldsStream.readLong());
        return;
      case FIELD_IS_NUMERIC_FLOAT:
        visitor.floatField(info, Float.intBitsToFloat(fieldsStream.readInt()));
        return;
      case FIELD_IS_NUMERIC_DOUBLE:
        visitor.doubleField(info, Double.longBitsToDouble(fieldsStream.readLong()));
        return;
      default:
        throw new CorruptIndexException("Invalid numeric type: " + Integer.toHexString(numeric));
    }
  } else { 
    final int length = fieldsStream.readVInt();
    byte bytes[] = new byte[length];
    fieldsStream.readBytes(bytes, 0, length);
    if ((bits & FIELD_IS_BINARY) != 0) {
      visitor.binaryField(info, bytes);
    } else {
      visitor.stringField(info, new String(bytes, 0, bytes.length, StandardCharsets.UTF_8));
    }
  }
}
开发者ID:lamsfoundation，项目名称:lams，代码行数:31，代码来源:Lucene40StoredFieldsReader.java

示例7: readField

import org.apache.lucene.index.StoredFieldVisitor; //导入依赖的package包/类
private static void readField(DataInput in, StoredFieldVisitor visitor, FieldInfo info, int bits) throws IOException {
  switch (bits & TYPE_MASK) {
    case BYTE_ARR:
      int length = in.readVInt();
      byte[] data = new byte[length];
      in.readBytes(data, 0, length);
      visitor.binaryField(info, data);
      break;
    case STRING:
      length = in.readVInt();
      data = new byte[length];
      in.readBytes(data, 0, length);
      visitor.stringField(info, new String(data, StandardCharsets.UTF_8));
      break;
    case NUMERIC_INT:
      visitor.intField(info, in.readInt());
      break;
    case NUMERIC_FLOAT:
      visitor.floatField(info, Float.intBitsToFloat(in.readInt()));
      break;
    case NUMERIC_LONG:
      visitor.longField(info, in.readLong());
      break;
    case NUMERIC_DOUBLE:
      visitor.doubleField(info, Double.longBitsToDouble(in.readLong()));
      break;
    default:
      throw new AssertionError("Unknown type flag: " + Integer.toHexString(bits));
  }
}
开发者ID:lamsfoundation，项目名称:lams，代码行数:31，代码来源:CompressingStoredFieldsReader.java

示例8: doc

import org.apache.lucene.index.StoredFieldVisitor; //导入依赖的package包/类
/** Visit a document's fields using a {@link StoredFieldVisitor}
 *  This method does not currently add to the Solr document cache.
 * 
 * @see IndexReader#document(int, StoredFieldVisitor) */
@Override
public void doc(int n, StoredFieldVisitor visitor) throws IOException {
  if (documentCache != null) {
    Document cached = documentCache.get(n);
    if (cached != null) {
      visitFromCached(cached, visitor);
      return;
    }
  }
  getIndexReader().document(n, visitor);
}
开发者ID:europeana，项目名称:search，代码行数:16，代码来源:SolrIndexSearcher.java

示例9: readField

import org.apache.lucene.index.StoredFieldVisitor; //导入依赖的package包/类
private void readField(StoredFieldVisitor visitor, FieldInfo info, int bits) throws IOException {
  final int numeric = bits & FIELD_IS_NUMERIC_MASK;
  if (numeric != 0) {
    switch(numeric) {
      case FIELD_IS_NUMERIC_INT:
        visitor.intField(info, fieldsStream.readInt());
        return;
      case FIELD_IS_NUMERIC_LONG:
        visitor.longField(info, fieldsStream.readLong());
        return;
      case FIELD_IS_NUMERIC_FLOAT:
        visitor.floatField(info, Float.intBitsToFloat(fieldsStream.readInt()));
        return;
      case FIELD_IS_NUMERIC_DOUBLE:
        visitor.doubleField(info, Double.longBitsToDouble(fieldsStream.readLong()));
        return;
      default:
        throw new CorruptIndexException("Invalid numeric type: " + Integer.toHexString(numeric));
    }
  } else { 
    final int length = fieldsStream.readVInt();
    byte bytes[] = new byte[length];
    fieldsStream.readBytes(bytes, 0, length);
    if ((bits & FIELD_IS_BINARY) != 0) {
      visitor.binaryField(info, bytes);
    } else {
      visitor.stringField(info, new String(bytes, 0, bytes.length, IOUtils.CHARSET_UTF_8));
    }
  }
}
开发者ID:pkarmstr，项目名称:NYBC，代码行数:31，代码来源:Lucene40StoredFieldsReader.java

示例10: readField

import org.apache.lucene.index.StoredFieldVisitor; //导入依赖的package包/类
private static void readField(ByteArrayDataInput in, StoredFieldVisitor visitor, FieldInfo info, int bits) throws IOException {
  switch (bits & TYPE_MASK) {
    case BYTE_ARR:
      int length = in.readVInt();
      byte[] data = new byte[length];
      in.readBytes(data, 0, length);
      visitor.binaryField(info, data);
      break;
    case STRING:
      length = in.readVInt();
      data = new byte[length];
      in.readBytes(data, 0, length);
      visitor.stringField(info, new String(data, IOUtils.CHARSET_UTF_8));
      break;
    case NUMERIC_INT:
      visitor.intField(info, in.readInt());
      break;
    case NUMERIC_FLOAT:
      visitor.floatField(info, Float.intBitsToFloat(in.readInt()));
      break;
    case NUMERIC_LONG:
      visitor.longField(info, in.readLong());
      break;
    case NUMERIC_DOUBLE:
      visitor.doubleField(info, Double.longBitsToDouble(in.readLong()));
      break;
    default:
      throw new AssertionError("Unknown type flag: " + Integer.toHexString(bits));
  }
}
开发者ID:pkarmstr，项目名称:NYBC，代码行数:31，代码来源:CompressingStoredFieldsReader.java

示例11: wrap

import org.apache.lucene.index.StoredFieldVisitor; //导入依赖的package包/类
/**
 * Only wrap with a {@link DelegatingRestrictedFieldVisitor} if necessary
 *
 * @param visitor To wrap
 * @return {@link RestrictedStoredFieldVisitor}
 */
public static RestrictedStoredFieldVisitor wrap(
  StoredFieldVisitor visitor) {
    return visitor instanceof RestrictedStoredFieldVisitor ?
           (RestrictedStoredFieldVisitor) visitor :
           new DelegatingRestrictedFieldVisitor(visitor);
}
开发者ID:roshanp，项目名称:lucure-core，代码行数:13，代码来源:DelegatingRestrictedFieldVisitor.java

示例12: getRowId

import org.apache.lucene.index.StoredFieldVisitor; //导入依赖的package包/类
private static String getRowId(IndexReader reader, int docId) throws CorruptIndexException, IOException {
  reader.document(docId, new StoredFieldVisitor() {
    @Override
    public Status needsField(FieldInfo fieldInfo) throws IOException {
      if (ROW_ID.equals(fieldInfo.name)) {
        return StoredFieldVisitor.Status.STOP;
      }
      return StoredFieldVisitor.Status.NO;
    }
  });
  return reader.document(docId).get(ROW_ID);
}
开发者ID:apache，项目名称:incubator-blur，代码行数:13，代码来源:IndexManager.java

示例13: getFieldSelector

import org.apache.lucene.index.StoredFieldVisitor; //导入依赖的package包/类
public static ResetableDocumentStoredFieldVisitor getFieldSelector(final Selector selector) {
  return new ResetableDocumentStoredFieldVisitor() {
    @Override
    public Status needsField(FieldInfo fieldInfo) throws IOException {
      if (ROW_ID.equals(fieldInfo.name)) {
        return StoredFieldVisitor.Status.YES;
      }
      if (RECORD_ID.equals(fieldInfo.name)) {
        return StoredFieldVisitor.Status.YES;
      }
      if (PRIME_DOC.equals(fieldInfo.name)) {
        return StoredFieldVisitor.Status.NO;
      }
      if (FAMILY.equals(fieldInfo.name)) {
        return StoredFieldVisitor.Status.YES;
      }
      if (selector.columnFamiliesToFetch == null && selector.columnsToFetch == null) {
        return StoredFieldVisitor.Status.YES;
      }
      String columnFamily = getColumnFamily(fieldInfo.name);
      if (selector.columnFamiliesToFetch != null) {
        if (selector.columnFamiliesToFetch.contains(columnFamily)) {
          return StoredFieldVisitor.Status.YES;
        }
      }
      String columnName = getColumnName(fieldInfo.name);
      if (selector.columnsToFetch != null) {
        Set<String> columns = selector.columnsToFetch.get(columnFamily);
        if (columns != null && columns.contains(columnName)) {
          return StoredFieldVisitor.Status.YES;
        }
      }
      return StoredFieldVisitor.Status.NO;
    }

  };
}
开发者ID:apache，项目名称:incubator-blur，代码行数:38，代码来源:IndexManager.java

示例14: setDocSize

import org.apache.lucene.index.StoredFieldVisitor; //导入依赖的package包/类
private static AtomicReader setDocSize(AtomicReader reader, final int count) {
  return new FilterAtomicReader(reader) {
    @Override
    public Bits getLiveDocs() {
      return new Bits() {
        @Override
        public boolean get(int index) {
          return true;
        }

        @Override
        public int length() {
          return count;
        }
      };
    }

    @Override
    public int numDocs() {
      return count;
    }

    @Override
    public int maxDoc() {
      return count;
    }

    @Override
    public void document(int docID, StoredFieldVisitor visitor) throws IOException {
      // Do nothing
    }
  };
}
开发者ID:apache，项目名称:incubator-blur，代码行数:34，代码来源:PrimeDocOverFlowHelper.java

示例15: doc

import org.apache.lucene.index.StoredFieldVisitor; //导入依赖的package包/类
/**
 * Visit a document's fields using a {@link StoredFieldVisitor} This method does not currently
 * add to the Solr document cache.
 * 
 * @see IndexReader#document(int, StoredFieldVisitor)
 */
@Override
public void doc(int n, StoredFieldVisitor visitor) throws IOException {
	if(documentCache != null) {
		Document cached = documentCache.get(n);
		if(cached != null) {
			visitFromCached(cached, visitor);
			return;
		}
	}
	getIndexReader().document(n, visitor);
}
开发者ID:netboynb，项目名称:search-core，代码行数:18，代码来源:SolrIndexSearcher.java


注：本文中的org.apache.lucene.index.StoredFieldVisitor类示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。