de.shadowhunt.subversion.internal.BasicHandler.java Source code

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Here is the source code for de.shadowhunt.subversion.internal.BasicHandler.java

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/**
 * Copyright (C) 2013 shadowhunt (dev@shadowhunt.de)
 *
 * Licensed 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 de.shadowhunt.subversion.internal;

import javax.xml.parsers.SAXParserFactory;

import org.apache.commons.lang3.StringEscapeUtils;
import org.xml.sax.helpers.DefaultHandler;

class BasicHandler extends DefaultHandler {

    protected static final SAXParserFactory FACTORY;

    static {
        FACTORY = SAXParserFactory.newInstance();
        FACTORY.setNamespaceAware(true);
        FACTORY.setValidating(false);
    }

    private final StringBuilder buffer = new StringBuilder();

    @Override
    public final void characters(final char[] ch, final int start, final int length) {
        buffer.append(ch, start, length);
    }

    protected void clearText() {
        // clear buffer, but reuse the object and its allocated memory
        buffer.setLength(0);
    }

    protected String getText() {
        return StringEscapeUtils.unescapeXml(buffer.toString());
    }
}