001: /*
002:
003: ============================================================================
004: The Apache Software License, Version 1.1
005: ============================================================================
006:
007: Copyright (C) 1999-2003 The Apache Software Foundation. All rights reserved.
008:
009: Redistribution and use in source and binary forms, with or without modifica-
010: tion, are permitted provided that the following conditions are met:
011:
012: 1. Redistributions of source code must retain the above copyright notice,
013: this list of conditions and the following disclaimer.
014:
015: 2. Redistributions in binary form must reproduce the above copyright notice,
016: this list of conditions and the following disclaimer in the documentation
017: and/or other materials provided with the distribution.
018:
019: 3. The end-user documentation included with the redistribution, if any, must
020: include the following acknowledgment: "This product includes software
021: developed by the Apache Software Foundation (http://www.apache.org/)."
022: Alternately, this acknowledgment may appear in the software itself, if
023: and wherever such third-party acknowledgments normally appear.
024:
025: 4. The names "Batik" and "Apache Software Foundation" must not be
026: used to endorse or promote products derived from this software without
027: prior written permission. For written permission, please contact
028: apache@apache.org.
029:
030: 5. Products derived from this software may not be called "Apache", nor may
031: "Apache" appear in their name, without prior written permission of the
032: Apache Software Foundation.
033:
034: THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
035: INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
036: FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
037: APACHE SOFTWARE FOUNDATION OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
038: INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLU-
039: DING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
040: OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
041: ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
042: (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
043: THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
044:
045: This software consists of voluntary contributions made by many individuals
046: on behalf of the Apache Software Foundation. For more information on the
047: Apache Software Foundation, please see <http://www.apache.org/>.
048:
049: */
050:
051: package org.apache.batik.util.io;
052:
053: import java.io.BufferedReader;
054: import java.io.IOException;
055: import java.io.InputStream;
056: import java.io.InputStreamReader;
057: import java.io.Reader;
058:
059: /**
060: * This class delegates to a reader the decoding of an input stream.
061: *
062: * @author <a href="mailto:stephane@hillion.org">Stephane Hillion</a>
063: * @version $Id$
064: */
065: public class GenericDecoder implements CharDecoder {
066:
067: /**
068: * The reader used to decode the stream.
069: */
070: protected Reader reader;
071:
072: /**
073: * Creates a new GenericDecoder.
074: * @param is The input stream to decode.
075: * @param enc The Java encoding name.
076: */
077: public GenericDecoder(InputStream is, String enc)
078: throws IOException {
079: reader = new InputStreamReader(is, enc);
080: reader = new BufferedReader(reader);
081: }
082:
083: /**
084: * Creates a new GenericDecoder.
085: * @param r The reader to use.
086: */
087: public GenericDecoder(Reader r) {
088: reader = r;
089: if (!(r instanceof BufferedReader)) {
090: reader = new BufferedReader(reader);
091: }
092: }
093:
094: /**
095: * Reads the next character.
096: * @return a character or END_OF_STREAM.
097: */
098: public int readChar() throws IOException {
099: return reader.read();
100: }
101:
102: /**
103: * Disposes the associated resources.
104: */
105: public void dispose() throws IOException {
106: reader.close();
107: reader = null;
108: }
109: }
|