+++ /dev/null
-package org.apache.lucene.queryParser.core.nodes;
-
-/**
- * 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.util.ArrayList;
-import java.util.List;
-import java.util.Locale;
-
-import org.apache.lucene.queryParser.core.parser.EscapeQuerySyntax;
-import org.apache.lucene.queryParser.core.parser.EscapeQuerySyntax.Type;
-
-/**
- * A {@link PathQueryNode} is used to store queries like
- * /company/USA/California /product/shoes/brown. QueryText are objects that
- * contain the text, begin position and end position in the query.
- * <p>
- * Example how the text parser creates these objects:
- * </p>
- * <pre>
- * List values = ArrayList();
- * values.add(new PathQueryNode.QueryText("company", 1, 7));
- * values.add(new PathQueryNode.QueryText("USA", 9, 12));
- * values.add(new PathQueryNode.QueryText("California", 14, 23));
- * QueryNode q = new PathQueryNode(values);
- * </pre>
- */
-public class PathQueryNode extends QueryNodeImpl {
-
- private static final long serialVersionUID = -8325921322405804789L;
-
- public static class QueryText implements Cloneable {
- CharSequence value = null;
- /**
- * != null The term's begin position.
- */
- int begin;
-
- /**
- * The term's end position.
- */
- int end;
-
- /**
- * @param value
- * - text value
- * @param begin
- * - position in the query string
- * @param end
- * - position in the query string
- */
- public QueryText(CharSequence value, int begin, int end) {
- super();
- this.value = value;
- this.begin = begin;
- this.end = end;
- }
-
- @Override
- public QueryText clone() throws CloneNotSupportedException {
- QueryText clone = (QueryText) super.clone();
- clone.value = this.value;
- clone.begin = this.begin;
- clone.end = this.end;
- return clone;
- }
-
- /**
- * @return the value
- */
- public CharSequence getValue() {
- return value;
- }
-
- /**
- * @return the begin
- */
- public int getBegin() {
- return begin;
- }
-
- /**
- * @return the end
- */
- public int getEnd() {
- return end;
- }
-
- @Override
- public String toString() {
- return value + ", " + begin + ", " + end;
- }
- }
-
- private List<QueryText> values = null;
-
- /**
- * @param pathElements
- * - List of QueryText objects
- */
- public PathQueryNode(List<QueryText> pathElements) {
- this.values = pathElements;
- if (pathElements.size() <= 1) {
- // this should not happen
- throw new RuntimeException(
- "PathQuerynode requires more 2 or more path elements.");
- }
- }
-
- /**
- * Returns the a List with all QueryText elements
- *
- * @return QueryText List size
- */
- public List<QueryText> getPathElements() {
- return values;
- }
-
- /**
- * Returns the a List with all QueryText elements
- */
- public void setPathElements(List<QueryText> elements) {
- this.values = elements;
- }
-
- /**
- * Returns the a specific QueryText element
- *
- * @return QueryText List size
- */
- public QueryText getPathElement(int index) {
- return values.get(index);
- }
-
- /**
- * Returns the CharSequence value of a specific QueryText element
- *
- * @return the CharSequence for a specific QueryText element
- */
- public CharSequence getFirstPathElement() {
- return values.get(0).value;
- }
-
- /**
- * Returns a List QueryText element from position startIndex
- *
- * @return a List QueryText element from position startIndex
- */
- public List<QueryText> getPathElements(int startIndex) {
- List<PathQueryNode.QueryText> rValues = new ArrayList<PathQueryNode.QueryText>();
- for (int i = startIndex; i < this.values.size(); i++) {
- try {
- rValues.add(this.values.get(i).clone());
- } catch (CloneNotSupportedException e) {
- // this will not happen
- }
- }
- return rValues;
- }
-
- private CharSequence getPathString() {
- StringBuilder path = new StringBuilder();
-
- for (QueryText pathelement : values) {
- path.append("/").append(pathelement.value);
- }
- return path.toString();
- }
-
- public CharSequence toQueryString(EscapeQuerySyntax escaper) {
- StringBuilder path = new StringBuilder();
- path.append("/").append(getFirstPathElement());
-
- for (QueryText pathelement : getPathElements(1)) {
- CharSequence value = escaper.escape(pathelement.value, Locale
- .getDefault(), Type.STRING);
- path.append("/\"").append(value).append("\"");
- }
- return path.toString();
- }
-
- @Override
- public String toString() {
- QueryText text = this.values.get(0);
-
- return "<path start='" + text.begin + "' end='" + text.end + "' path='"
- + getPathString() + "'/>";
- }
-
- @Override
- public QueryNode cloneTree() throws CloneNotSupportedException {
- PathQueryNode clone = (PathQueryNode) super.cloneTree();
-
- // copy children
- if (this.values != null) {
- List<QueryText> localValues = new ArrayList<QueryText>();
- for (QueryText value : this.values) {
- localValues.add(value.clone());
- }
- clone.values = localValues;
- }
-
- return clone;
- }
-
-}
fnp / pylucene.git / blobdiff