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- /*
- * Copyright 1999-2004 The Apache Software Foundation.
- *
- * 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.
- */
-
- /* $Id$ */
-
- package org.apache.fop.apps;
-
- // SAX
- import org.xml.sax.InputSource;
- import org.xml.sax.XMLReader;
-
- // Java
- import java.net.URL;
- import java.io.File;
-
- /**
- * Abstract super class for input handlers.
- * Should be used to abstract the various possibilities on how input
- * can be provided to FOP (but actually isn't).
- */
- public abstract class InputHandler {
-
- /**
- * Get the input source associated with this input handler.
- * @return the input source
- */
- public abstract InputSource getInputSource();
-
- /**
- * Get the SAX parser associated with this input handler.
- * @return the SAX parser
- * @throws FOPException in case of an error determining the SAX parser
- */
- public abstract XMLReader getParser() throws FOPException;
-
- /**
- * Creates an InputSource from a URL.
- * @param url URL to use
- * @return the newly created InputSource
- */
- public static InputSource urlInputSource(URL url) {
- return new InputSource(url.toString());
- }
-
- /**
- * Creates an <code>InputSource</code> from a <code>File</code>
- * @param file the <code>File</code>
- * @return the <code>InputSource</code> created
- */
- public static InputSource fileInputSource(File file) {
- /* this code adapted from James Clark's in XT */
- String path = file.getAbsolutePath();
- String fSep = System.getProperty("file.separator");
- if (fSep != null && fSep.length() == 1) {
- path = path.replace(fSep.charAt(0), '/');
- }
- if (path.length() > 0 && path.charAt(0) != '/') {
- path = '/' + path;
- }
- try {
- return new InputSource(new URL("file", null, path).toString());
- } catch (java.net.MalformedURLException e) {
- throw new Error("unexpected MalformedURLException");
- }
- }
-
- }
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