net.bible.service.format.osistohtml.taghandler.TagHandlerHelper.java Source code

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Here is the source code for net.bible.service.format.osistohtml.taghandler.TagHandlerHelper.java

Source

package net.bible.service.format.osistohtml.taghandler;

import net.bible.service.common.Logger;

import org.apache.commons.lang.StringUtils;
import org.xml.sax.Attributes;

/**
 * @author Martin Denham [mjdenham at gmail dot com]
 * @see gnu.lgpl.License for license details.<br>
 *      The copyright to this program is held by it's author.
 */
public class TagHandlerHelper {

    private static final Logger log = new Logger("TagHandlerHelper");

    /** support defaultvalue with attribute fetch
     */
    public static String getAttribute(String attributeName, Attributes attrs, String defaultValue) {
        String attrValue = attrs.getValue(attributeName);
        if (attrValue != null) {
            return attrValue;
        } else {
            return defaultValue;
        }
    }

    /** support defaultvalue with attribute fetch
     */
    public static int getAttribute(String attributeName, Attributes attrs, int defaultValue) {
        int retval = defaultValue;
        try {
            String attrValue = attrs.getValue(attributeName);
            if (attrValue != null) {
                retval = Integer.parseInt(attrValue);
            }
        } catch (Exception e) {
            log.warn("Non numeric but expected integer for " + attributeName);
        }
        return retval;
    }

    /** Return true if attribute contains the desiredValue in any case
     */
    public static boolean contains(String attributeName, Attributes attrs, String desiredValue) {
        boolean attribContainsExpectedValue = false;
        String attrValue = attrs.getValue(attributeName);
        if (attrValue != null) {
            attribContainsExpectedValue = StringUtils.containsIgnoreCase(attrValue, desiredValue);
        }
        return attribContainsExpectedValue;
    }

    /**
     * see if an attribute exists and has a value
     * 
     * @param attributeName
     * @param attrs
     * @return
     */
    public static boolean isAttr(String attributeName, Attributes attrs) {
        String attrValue = attrs.getValue(attributeName);
        return StringUtils.isNotEmpty(attrValue);
    }

    /** return verse from osis id of format book.chap.verse
     * 
     * @param ososID osis Id
     * @return verse number
     */
    public static int osisIdToVerseNum(String osisID) {
        /* You have to use "\\.", the first backslash is interpreted as an escape by the
         Java compiler, so you have to use two to get a String that contains one
         backslash and a dot, which is what you want the regexp engine to see.*/
        if (osisID != null) {
            String[] parts = osisID.split("\\.");
            if (parts.length > 1) {
                String verse = parts[parts.length - 1];
                return Integer.valueOf(verse);
            }
        }
        return 0;
    }

    public static void printAttributes(Attributes attrs) {
        for (int i = 0; i < attrs.getLength(); i++) {
            log.debug(attrs.getLocalName(i) + ":" + attrs.getValue(i));
        }
    }
}