001/*
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements.  See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License.  You may obtain a copy of the License at
008 *
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package org.apache.commons.geometry.io.core.input;
018
019import java.io.InputStream;
020import java.nio.charset.Charset;
021
022import org.apache.commons.geometry.io.core.AbstractGeometryIOMetadata;
023
024/** {@link GeometryInput} implementation that wraps an {@link InputStream}.
025 */
026public class StreamGeometryInput extends AbstractGeometryIOMetadata
027    implements GeometryInput {
028
029    /** Input stream. */
030    private final InputStream in;
031
032    /** Construct a new instance that reads from the given input stream with
033     * no configured file name or charset.
034     * @param in input stream
035     */
036    public StreamGeometryInput(final InputStream in) {
037        this(in, null, null);
038    }
039
040    /** Construct a new instance that reads from the given input stream with the
041     * configured file name but no charset.
042     * @param in input stream
043     * @param fileName input file name; may be null
044     */
045    public StreamGeometryInput(final InputStream in, final String fileName) {
046        this(in, fileName, null);
047    }
048
049    /** Construct a new instance that reads from the given input stream with the configured
050     * file name and charset.
051     * @param in input stream
052     * @param fileName input file name; may be null
053     * @param charset input charset; may be null
054     */
055    public StreamGeometryInput(final InputStream in, final String fileName, final Charset charset) {
056        super(fileName, charset);
057
058        this.in = in;
059    }
060
061    /** {@inheritDoc} */
062    @Override
063    public InputStream getInputStream() {
064        return in;
065    }
066}