com.steadystate.css.parser.LocatorImpl Maven / Gradle / Ivy

Show more of this group Show more artifacts with this name
Show all versions of cssparser Show documentation
A CSS parser which implements SAC (the Simple API for CSS).
There is a newer version: 0.9.30
/*
 * CSS Parser Project
 *
 * Copyright (C) 1999-2011 David Schweinsberg.  All rights reserved.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * To contact the authors of the library:
 *
 * http://cssparser.sourceforge.net/
 * mailto:[email protected]
 *
 */

package com.steadystate.css.parser;

import java.io.Serializable;

import org.w3c.css.sac.Locator;

import com.steadystate.css.util.LangUtils;

/**
 * Implementation of {@link Locator}.
 *
 * @author David Schweinsberg
 */
public class LocatorImpl implements Locator, Serializable {

    private static final long serialVersionUID = 2240824537064705530L;

    private String uri_;
    private int lineNumber_;
    private int columnNumber_;

    public String getUri() {
        return uri_;
    }

    public void setUri(final String uri) {
        uri_ = uri;
    }

    public void setLineNumber(final int line) {
        lineNumber_ = line;
    }

    public void setColumnNumber(final int column) {
        columnNumber_ = column;
    }

    /** Creates new LocatorImpl */
    public LocatorImpl(final String uri, final int line, final int column) {
        uri_ = uri;
        lineNumber_ = line;
        columnNumber_ = column;
    }

    public LocatorImpl() {
    }

    /**
     * Return the line number where the current document event ends.
     * Note that this is the line position of the first character
     * after the text associated with the document event.
     * @return The line number, or -1 if none is available.
     * @see #getColumnNumber
     */
    public int getLineNumber() {
        return lineNumber_;
    }

    /**
     * Return the URI for the current document event.
     *
     * The parser must resolve the URI fully before passing it to the
     * application.
     *
     * @return A string containing the URI, or null
     *        if none is available.
     */
    public String getURI() {
        return uri_;
    }

    /**
     * Return the column number where the current document event ends.
     * Note that this is the column number of the first
     * character after the text associated with the document
     * event.  The first column in a line is position 1.
     * @return The column number, or -1 if none is available.
     * @see #getLineNumber
     */
    public int getColumnNumber() {
        return columnNumber_;
    }

    @Override
    public boolean equals(final Object obj) {
        if (this == obj) {
            return true;
        }
        if (!(obj instanceof Locator)) {
            return false;
        }
        final Locator l = (Locator) obj;
        return (getColumnNumber() == l.getColumnNumber())
            && (getLineNumber() == l.getLineNumber())
            && LangUtils.equals(getURI(), l.getURI());
    }

    @Override
    public int hashCode() {
        int hash = LangUtils.HASH_SEED;
        hash = LangUtils.hashCode(hash, columnNumber_);
        hash = LangUtils.hashCode(hash, lineNumber_);
        hash = LangUtils.hashCode(hash, uri_);
        return hash;
    }

    @Override
    public String toString() {
        return new StringBuilder().append(getUri()).append(" (")
            .append(getLineNumber()).append(':')
            .append(getColumnNumber()).append(')').toString();
    }
}