source: java/main/src/main/java/com/framsticks/parsers/FileSource.java @ 193

package com.framsticks.parsers;

import com.framsticks.params.Source;
import com.framsticks.util.io.Encoding;

import java.io.*;


public class FileSource implements Source {

        private BufferedReader reader;
        private final String filename;

        public FileSource(InputStream stream, String filename) {
                this.filename = filename;
                this.reader = new BufferedReader(new InputStreamReader(stream, Encoding.getFramsticksCharset()));
        }

        public FileSource(String filename) throws IOException {
                this(new FileInputStream(filename), filename);
        }

        public FileSource(InputStream stream) {
                this(stream, "<stream>");
        }

        @Override
        public String readLine()
        {
                assert !isClosed();
                try
                {
                        return reader.readLine();
                } catch (IOException ignored) {

                }
                return null;
        }

        @Override
        public String getFilename()
        {
                return filename;
        }

        @Override
        public String demangleInclude(String include)
        {
                if (!include.contains(java.io.File.separator)) {
                        String currentFilePath = (new java.io.File(filename)).getParent();
                        if (!String.valueOf(
                                        currentFilePath.charAt(currentFilePath.length() - 1))
                                        .equals(java.io.File.separator)) {
                                currentFilePath = currentFilePath + java.io.File.separator;
                        }
                        include = currentFilePath + include;
                }
                return include;
        }

        @Override
        public Source openInclude(String include)
        {
                try
                {
                        return new FileSource(include);
                }
                catch(IOException e)
                {

                }
                return null;
        }

        @Override
        public void close()
        {
                try {
                        reader.close();
                } catch (IOException e) {

                }
                reader = null;
        }

        @Override
        public boolean isClosed() {
                return reader == null;
        }

        @Override
        public String toString() {
                return filename;
        }

}