+++ /dev/null
-package org.apache.lucene.xmlparser.builders;
-
-/**
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-import java.io.IOException;
-
-import org.apache.lucene.index.IndexReader;
-import org.apache.lucene.search.DocIdSet;
-import org.apache.lucene.search.Filter;
-import org.apache.lucene.search.NumericRangeFilter;
-import org.apache.lucene.util.NumericUtils;
-import org.apache.lucene.xmlparser.DOMUtils;
-import org.apache.lucene.xmlparser.FilterBuilder;
-import org.apache.lucene.xmlparser.ParserException;
-import org.w3c.dom.Element;
-
-/**
- * Creates a {@link NumericRangeFilter}. The table below specifies the required
- * attributes and the defaults if optional attributes are omitted. For more
- * detail on what each of the attributes actually do, consult the documentation
- * for {@link NumericRangeFilter}:
- * <table>
- * <tr>
- * <th>Attribute name</th>
- * <th>Values</th>
- * <th>Required</th>
- * <th>Default</th>
- * </tr>
- * <tr>
- * <td>fieldName</td>
- * <td>String</td>
- * <td>Yes</td>
- * <td>N/A</td>
- * </tr>
- * <tr>
- * <td>lowerTerm</td>
- * <td>Specified by <tt>type</tt></td>
- * <td>Yes</td>
- * <td>N/A</td>
- * </tr>
- * <tr>
- * <td>upperTerm</td>
- * <td>Specified by <tt>type</tt></td>
- * <td>Yes</td>
- * <td>N/A</td>
- * </tr>
- * <tr>
- * <td>type</td>
- * <td>int, long, float, double</td>
- * <td>No</td>
- * <td>int</td>
- * </tr>
- * <tr>
- * <td>includeLower</td>
- * <td>true, false</td>
- * <td>No</td>
- * <td>true</td>
- * </tr>
- * <tr>
- * <td>includeUpper</td>
- * <td>true, false</td>
- * <td>No</td>
- * <td>true</td>
- * </tr>
- * <tr>
- * <td>precisionStep</td>
- * <td>Integer</td>
- * <td>No</td>
- * <td>4</td>
- * </tr>
- * </table>
- * <p>
- * If an error occurs parsing the supplied <tt>lowerTerm</tt> or
- * <tt>upperTerm</tt> into the numeric type specified by <tt>type</tt>, then the
- * error will be silently ignored and the resulting filter will not match any
- * documents.
- */
-public class NumericRangeFilterBuilder implements FilterBuilder {
- private static final NoMatchFilter NO_MATCH_FILTER = new NoMatchFilter();
-
- private boolean strictMode = false;
-
- /**
- * Specifies how this {@link NumericRangeFilterBuilder} will handle errors.
- * <p>
- * If this is set to true, {@link #getFilter(Element)} will throw a
- * {@link ParserException} if it is unable to parse the lowerTerm or upperTerm
- * into the appropriate numeric type. If this is set to false, then this
- * exception will be silently ignored and the resulting filter will not match
- * any documents.
- * <p>
- * Defaults to false.
- *
- * @param strictMode
- */
- public void setStrictMode(boolean strictMode) {
- this.strictMode = strictMode;
- }
-
- public Filter getFilter(Element e) throws ParserException {
- String field = DOMUtils.getAttributeWithInheritanceOrFail(e, "fieldName");
- String lowerTerm = DOMUtils.getAttributeOrFail(e, "lowerTerm");
- String upperTerm = DOMUtils.getAttributeOrFail(e, "upperTerm");
- boolean lowerInclusive = DOMUtils.getAttribute(e, "includeLower", true);
- boolean upperInclusive = DOMUtils.getAttribute(e, "includeUpper", true);
- int precisionStep = DOMUtils.getAttribute(e, "precisionStep", NumericUtils.PRECISION_STEP_DEFAULT);
-
- String type = DOMUtils.getAttribute(e, "type", "int");
- try {
- Filter filter;
- if (type.equalsIgnoreCase("int")) {
- filter = NumericRangeFilter.newIntRange(field, precisionStep, Integer
- .valueOf(lowerTerm), Integer.valueOf(upperTerm), lowerInclusive,
- upperInclusive);
- } else if (type.equalsIgnoreCase("long")) {
- filter = NumericRangeFilter.newLongRange(field, precisionStep, Long
- .valueOf(lowerTerm), Long.valueOf(upperTerm), lowerInclusive,
- upperInclusive);
- } else if (type.equalsIgnoreCase("double")) {
- filter = NumericRangeFilter.newDoubleRange(field, precisionStep, Double
- .valueOf(lowerTerm), Double.valueOf(upperTerm), lowerInclusive,
- upperInclusive);
- } else if (type.equalsIgnoreCase("float")) {
- filter = NumericRangeFilter.newFloatRange(field, precisionStep, Float
- .valueOf(lowerTerm), Float.valueOf(upperTerm), lowerInclusive,
- upperInclusive);
- } else {
- throw new ParserException(
- "type attribute must be one of: [long, int, double, float]");
- }
- return filter;
- } catch (NumberFormatException nfe) {
- if (strictMode) {
- throw new ParserException(
- "Could not parse lowerTerm or upperTerm into a number", nfe);
- }
- return NO_MATCH_FILTER;
- }
- }
-
- static class NoMatchFilter extends Filter {
- private static final long serialVersionUID = 1L;
-
- @Override
- public DocIdSet getDocIdSet(IndexReader reader) throws IOException {
- return null;
- }
-
- }
-}
fnp / pylucene.git / blobdiff