001/*
002 *  Copyright 2019 Anyware Services
003 *
004 *  Licensed under the Apache License, Version 2.0 (the "License");
005 *  you may not use this file except in compliance with the License.
006 *  You may obtain a copy of the License at
007 *
008 *      http://www.apache.org/licenses/LICENSE-2.0
009 *
010 *  Unless required by applicable law or agreed to in writing, software
011 *  distributed under the License is distributed on an "AS IS" BASIS,
012 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 *  See the License for the specific language governing permissions and
014 *  limitations under the License.
015 */
016package org.ametys.core.minimize;
017
018import java.io.ByteArrayInputStream;
019import java.io.IOException;
020import java.io.InputStream;
021import java.net.MalformedURLException;
022import java.nio.charset.StandardCharsets;
023import java.util.Map;
024
025import org.apache.excalibur.source.Source;
026import org.apache.excalibur.source.SourceFactory;
027import org.apache.excalibur.source.SourceNotFoundException;
028import org.apache.excalibur.source.SourceValidity;
029import org.apache.excalibur.source.impl.validity.TimeStampValidity;
030
031/**
032 * Fake factory for SourceMapCache
033 */
034public class SourceMapSourceFactory implements SourceFactory
035{
036    /** Parameter last modified */
037    public static final String LAST_MODIFIED = "lastmodified";
038    /** Parameter content*/
039    public static final String CONTENT = "content";
040    /** Declared protocol */
041    public static final String SCHEME = "sourcemap";
042    
043    public Source getSource(String location, Map parameters) throws IOException, MalformedURLException
044    {
045        return new SourceMapSource(location, (String) parameters.get(CONTENT), (Long) parameters.get(LAST_MODIFIED));
046    }
047
048    public void release(Source source)
049    {
050        // Nothing to do
051    }
052
053    /**
054     * The Source of a source map
055     */
056    public static final class SourceMapSource implements Source
057    {
058        private String _content;
059        private Long _lastModified;
060        private String _location;
061        private TimeStampValidity _timeStampValidity;
062        
063        /**
064         * Default constructor for a memory source
065         * @param location The location of the source
066         * @param content The content of the source
067         * @param lastModified The last modified date
068         */
069        public SourceMapSource(String location, String content, Long lastModified)
070        {
071            _location = location;
072            _content = content;
073            _lastModified = lastModified;
074        }
075        
076        public boolean exists()
077        {
078            return true;
079        }
080
081        public InputStream getInputStream() throws IOException, SourceNotFoundException
082        {
083            return new ByteArrayInputStream(_content.getBytes(StandardCharsets.UTF_8));
084        }
085
086        public String getURI()
087        {
088            return _location;
089        }
090
091        public String getScheme()
092        {
093            return SCHEME;
094        }
095
096        public SourceValidity getValidity()
097        {
098            if (_timeStampValidity == null)
099            {
100                _timeStampValidity = new TimeStampValidity(_lastModified);
101            }
102            return _timeStampValidity;
103        }
104
105        public void refresh()
106        {
107            // do nothing
108        }
109
110        public String getMimeType()
111        {
112            return "application/json";
113        }
114
115        public long getContentLength()
116        {
117            return _content.length();
118        }
119
120        public long getLastModified()
121        {
122            return _lastModified;
123        }
124    }
125}