1/*
2 * Copyright (C) 2008,2009  OMRON SOFTWARE Co., Ltd.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package jp.co.omronsoft.openwnn;
18
19import java.lang.StringBuffer;
20import java.util.ArrayList;
21import java.util.Iterator;
22
23/**
24 * The container class of a sentence.
25 *
26 * @author Copyright (C) 2009, OMRON SOFTWARE CO., LTD.  All Rights Reserved.
27 */
28public class WnnSentence extends WnnWord {
29    /** The array of clauses */
30    public ArrayList<WnnClause> elements;
31
32    /**
33     * Constructor
34     *
35     * @param input     The string of reading
36     * @param clauses   The array of clauses of this sentence
37     */
38    public WnnSentence(String input, ArrayList<WnnClause> clauses) {
39        if (clauses == null || clauses.isEmpty()) {
40            this.id = 0;
41            this.candidate = "";
42            this.stroke = "";
43            this.frequency = 0;
44            this.partOfSpeech = new WnnPOS();
45            this.attribute = 0;
46        } else {
47            this.elements = clauses;
48            WnnClause headClause = (WnnClause)clauses.get(0);
49
50            if (clauses.size() == 1) {
51                this.id = headClause.id;
52                this.candidate = headClause.candidate;
53                this.stroke = input;
54                this.frequency = headClause.frequency;
55                this.partOfSpeech = headClause.partOfSpeech;
56                this.attribute = headClause.attribute;
57            } else {
58                StringBuffer candidate = new StringBuffer();
59                Iterator<WnnClause> ci = clauses.iterator();
60                while (ci.hasNext()) {
61                    WnnClause clause = ci.next();
62                    candidate.append(clause.candidate);
63                }
64                WnnClause lastClause = (WnnClause)clauses.get(clauses.size() - 1);
65
66                this.id = headClause.id;
67                this.candidate = candidate.toString();
68                this.stroke = input;
69                this.frequency = headClause.frequency;
70                this.partOfSpeech = new WnnPOS(headClause.partOfSpeech.left, lastClause.partOfSpeech.right);
71                this.attribute = 2;
72            }
73        }
74    }
75
76    /**
77     * Constructor
78     *
79     * @param input     The string of reading
80     * @param clause    The clauses of this sentence
81     */
82    public WnnSentence(String input, WnnClause clause) {
83        this.id = clause.id;
84        this.candidate = clause.candidate;
85        this.stroke = input;
86        this.frequency = clause.frequency;
87        this.partOfSpeech = clause.partOfSpeech;
88        this.attribute = clause.attribute;
89
90        this.elements = new ArrayList<WnnClause>();
91        this.elements.add(clause);
92    }
93
94    /**
95     * Constructor
96     *
97     * @param prev      The previous clauses
98     * @param clause    The clauses of this sentence
99     */
100    public WnnSentence(WnnSentence prev, WnnClause clause) {
101        this.id = prev.id;
102        this.candidate = prev.candidate + clause.candidate;
103        this.stroke = prev.stroke + clause.stroke;
104        this.frequency = prev.frequency + clause.frequency;
105        this.partOfSpeech = new WnnPOS(prev.partOfSpeech.left, clause.partOfSpeech.right);
106        this.attribute = prev.attribute;
107
108        this.elements = new ArrayList<WnnClause>();
109        this.elements.addAll(prev.elements);
110        this.elements.add(clause);
111    }
112
113    /**
114     * Constructor
115     *
116     * @param head      The top clause of this sentence
117     * @param tail      The following sentence
118     */
119    public WnnSentence(WnnClause head, WnnSentence tail) {
120        if (tail == null) {
121            /* single clause */
122            this.id = head.id;
123            this.candidate = head.candidate;
124            this.stroke = head.stroke;
125            this.frequency = head.frequency;
126            this.partOfSpeech = head.partOfSpeech;
127            this.attribute = head.attribute;
128            this.elements = new ArrayList<WnnClause>();
129            this.elements.add(head);
130        } else {
131            /* consecutive clauses */
132            this.id = head.id;
133            this.candidate = head.candidate + tail.candidate;
134            this.stroke = head.stroke + tail.stroke;
135            this.frequency = head.frequency + tail.frequency;
136            this.partOfSpeech = new WnnPOS(head.partOfSpeech.left, tail.partOfSpeech.right);
137            this.attribute = 2;
138
139            this.elements = new ArrayList<WnnClause>();
140            this.elements.add(head);
141            this.elements.addAll(tail.elements);
142        }
143    }
144}
145