opennlp.tools.parse_thicket.external_rst.RstNode.java Source code

Introduction

Here is the source code for opennlp.tools.parse_thicket.external_rst.RstNode.java

Source

/*
 * 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.
 */
package opennlp.tools.parse_thicket.external_rst;

import org.apache.commons.lang.StringUtils;

import opennlp.tools.similarity.apps.utils.Pair;

public class RstNode {
    Boolean isNucleus;
    Pair<Integer, Integer> span;
    Integer leaf;
    String rel2par;
    String text;
    Integer level;

    public Boolean getIsNucleus() {
        return isNucleus;
    }

    public void setIsNucleus(Boolean isNucleus) {
        this.isNucleus = isNucleus;
    }

    public Pair<Integer, Integer> getSpan() {
        return span;
    }

    public void setSpan(Pair<Integer, Integer> span) {
        this.span = span;
    }

    public Integer getLeaf() {
        return leaf;
    }

    public void setLeaf(Integer leaf) {
        this.leaf = leaf;
    }

    public String getRel2par() {
        return rel2par;
    }

    public void setRel2par(String rel2par) {
        this.rel2par = rel2par;
    }

    public String getText() {
        return text;
    }

    public void setText(String text) {
        this.text = text;
    }

    public String toString() {
        String ret = "";
        if (isNucleus != null && isNucleus)
            ret += "Nucleus ";
        if (span != null)
            ret += "[" + span.getFirst() + " " + span.getSecond() + "]";
        ret += " >> " + rel2par;
        if (text != null)
            ret += " >> " + text;
        return ret;
    }

    public RstNode(String line) {
        if (StringUtils.trim(line).startsWith(")"))
            return;

        level = line.indexOf("(");
        line = line.substring(line.indexOf("(") + 2);

        isNucleus = line.substring(0, line.indexOf("(")).indexOf("Nucleus") > -1;
        line = line.substring(line.indexOf("(") + 1);
        if (line.startsWith("span")) {
            line = line.substring(5);
            try {
                span = new Pair<Integer, Integer>();
                String[] spanStr = line.substring(0, line.indexOf(")")).split(" ");
                span.setFirst(Integer.parseInt(spanStr[0]));
                span.setSecond(Integer.parseInt(spanStr[1]));
            } catch (Exception e) {
                e.printStackTrace();
            }

        } else if (line.startsWith("leaf")) {
            try {
                String leafStr = line.substring(5, line.indexOf(")"));
                leaf = Integer.parseInt(leafStr);
            } catch (Exception e) {
                e.printStackTrace();
            }

        } else
            System.err.println("Problem parsing RST results: '" + line);

        line = line.substring(line.indexOf("rel2par") + 8);
        rel2par = line.substring(0, line.indexOf(")")).trim();

        text = StringUtils.substringBetween(line, "_!", "_!)");

    }

    public static void main(String[] args) {
        RstNode n1 = new RstNode(
                "        ( Nucleus (leaf 7) (rel2par span) (text _!that it usually takes a day_!) )"),
                n2 = new RstNode("       )"),
                n3 = new RstNode("          ( Satellite (span 15 16) (rel2par Explanation)");

    }

}