org.apache.fop.render.AbstractFOEventHandlerMaker Maven / Gradle / Ivy

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Tool to convert CSV and XLS to XML, to transform XML and to convert XML to CSV, HTML, other text files, PDF etc., useful as command line tool and integrated in other projects.

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/*
 * 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.
 */

/* $Id: AbstractFOEventHandlerMaker.java 679326 2008-07-24 09:35:34Z vhennebert $ */

package org.apache.fop.render;

import java.io.OutputStream;

import org.apache.fop.apps.FOPException;
import org.apache.fop.apps.FOUserAgent;
import org.apache.fop.fo.FOEventHandler;

/**
 * Base class for factory classes which instantiate FOEventHandlers and provide information
 * about them.
 */
public abstract class AbstractFOEventHandlerMaker {

    /**
     * Instantiates a new FOEventHandler.
     * @param ua the user agent
     * @param out OutputStream for the FOEventHandler to use
     * @return the newly instantiated FOEventHandler
     * @throws FOPException if a problem occurs while creating the event handler
     */
    public abstract FOEventHandler makeFOEventHandler(FOUserAgent ua, OutputStream out)
            throws FOPException;

    /**
     * @return Indicates whether this renderer requires an OutputStream to work with.
     */
    public abstract boolean needsOutputStream();

    /**
     * @return an array of MIME types the renderer supports.
     */
    public abstract String[] getSupportedMimeTypes();

    /**
     * Indicates whether a specific MIME type is supported by this renderer.
     * @param mimeType the MIME type (ex. "application/rtf")
     * @return true if the MIME type is supported
     */
    public boolean isMimeTypeSupported(String mimeType) {
        String[] mimes = getSupportedMimeTypes();
        for (int i = 0; i < mimes.length; i++) {
            if (mimes[i].equals(mimeType)) {
                return true;
            }
        }
        return false;
    }

}