Android Open Source - sqlite-provider S Q Lite File Parser

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Back to project page sqlite-provider.

License

The source code is released under:

Apache License

Java Source Code

package novoda.rest.database;
//www. j ava 2s .c o m
import java.io.*;
import java.util.Iterator;

/*
 * Very simple parser.
 * Currently only support per line sql statements
 */
public class SQLiteFileParser implements Iterator<String>, Iterable<String> {

    private final BufferedReader br;

    private String currentLine = null;

    private boolean inHasNext = false;

    public SQLiteFileParser(InputStream in) {
        br = new BufferedReader(new InputStreamReader(in));
    }

    @Override
    public Iterator<String> iterator() {
        return this;
    }

    @Override
    public boolean hasNext() {
        try {
            inHasNext  = true;
            currentLine = getNextSQL();
            return currentLine != null;
        } catch (IOException e) {
            return false;
        }
    }

    @Override
    public String next() {
        try {
            if (inHasNext) {
                inHasNext = false;
                return currentLine;
            }
            return getNextSQL();
        } catch (IOException e) {
            return null;
        }
    }

    private String getNextSQL() throws IOException {
        currentLine = br.readLine();
        if (currentLine != null
                && (currentLine.startsWith("--") || currentLine.trim().length() == 0)) {
            return getNextSQL();
        }
        return currentLine;
    }

    @Override
    public void remove() {
        throw new UnsupportedOperationException("not supported");
    }

    public void close() {
        try {
            br.close();
        } catch (IOException e) {
            // do nothing
        }
    }

}

Java Source Code List

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