com.gargoylesoftware.htmlunit.protocol.data.Handler Maven / Gradle / Ivy

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A headless browser intended for use in testing web-based applications.

There is a newer version: 2.70.0

/*
 * Copyright (c) 2002-2021 Gargoyle Software Inc.
 *
 * 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
 * https://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 com.gargoylesoftware.htmlunit.protocol.data;

import java.io.UnsupportedEncodingException;
import java.net.URL;
import java.net.URLConnection;
import java.net.URLStreamHandler;

import org.apache.commons.codec.DecoderException;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

/**
 * Stream handler for data URLs.
 *
 * @author Marc Guillemot
 */
public class Handler extends URLStreamHandler {

    /** Logging support. */
    private static final Log LOG = LogFactory.getLog(Handler.class);

    /**
     * Returns a new URLConnection for this URL.
     * @param url the JavaScript URL
     * @return the connection
     */
    @Override
    protected URLConnection openConnection(final URL url) {
        try {
            return new DataURLConnection(url);
        }
        catch (final UnsupportedEncodingException e) {
            if (LOG.isErrorEnabled()) {
                LOG.error("Exception decoding " + url, e);
            }
        }
        catch (final DecoderException e) {
            if (LOG.isErrorEnabled()) {
                LOG.error("Exception decoding " + url, e);
            }
        }
        return null;
    }
}