Examples with PrintWriter java.io.PrintWriter used on opensource projects

Example 16 with PrintWriter

use of java.io.PrintWriter in project flink by apache.

the class WriteFormatAsCsv method write.

@Override
protected void write(String path, ArrayList<IN> tupleList) {
    try (PrintWriter outStream = new PrintWriter(new BufferedWriter(new FileWriter(path, true)))) {
        for (IN tupleToWrite : tupleList) {
            String strTuple = tupleToWrite.toString();
            outStream.println(strTuple.substring(1, strTuple.length() - 1));
        }
    } catch (IOException e) {
        throw new RuntimeException("Exception occured while writing file " + path, e);
    }
}

Example 17 with PrintWriter

use of java.io.PrintWriter in project flink by apache.

the class WriteSinkFunction method cleanFile.

/**
	 * Creates target file if it does not exist, cleans it if it exists.
	 * 
	 * @param path
	 *            is the path to the location where the tuples are written
	 */
protected void cleanFile(String path) {
    try {
        PrintWriter writer;
        writer = new PrintWriter(path);
        writer.print("");
        writer.close();
    } catch (FileNotFoundException e) {
        throw new RuntimeException("An error occurred while cleaning the file: " + e.getMessage(), e);
    }
}

Example 18 with PrintWriter

use of java.io.PrintWriter in project groovy by apache.

the class ClassCompletionVerifierTest method flattenErrorMessage.

private String flattenErrorMessage() {
    StringWriter stringWriter = new StringWriter();
    PrintWriter writer = new PrintWriter(stringWriter, true);
    for (int i = source.getErrorCollector().getErrorCount() - 1; i >= 0; i--) {
        source.getErrorCollector().getError(i).write(writer);
    }
    writer.close();
    return stringWriter.toString();
}

Example 19 with PrintWriter

use of java.io.PrintWriter in project groovy by apache.

the class SourceParserTest method parse.

protected void parse(String name, Reader reader) {
    SourceBuffer sourceBuffer = new SourceBuffer();
    UnicodeEscapingReader unicodeReader = new UnicodeEscapingReader(reader, sourceBuffer);
    GroovyLexer lexer = new GroovyLexer(unicodeReader);
    unicodeReader.setLexer(lexer);
    GroovyRecognizer parser = GroovyRecognizer.make(lexer);
    parser.setSourceBuffer(sourceBuffer);
    parser.setFilename(name);
    // start parsing at the compilationUnit rule
    try {
        parser.compilationUnit();
    } catch (Exception ex) {
        StringWriter out = new StringWriter();
        out.write(ex.getMessage());
        out.write("\n");
        ex.printStackTrace(new PrintWriter(out));
        fail(out.toString());
    }
}

Example 20 with PrintWriter

use of java.io.PrintWriter in project hadoop by apache.

the class TestConfServlet method verifyGetProperty.

private void verifyGetProperty(Configuration conf, String format, String propertyName) throws Exception {
    StringWriter sw = null;
    PrintWriter pw = null;
    ConfServlet service = null;
    try {
        service = new ConfServlet();
        ServletConfig servletConf = mock(ServletConfig.class);
        ServletContext context = mock(ServletContext.class);
        service.init(servletConf);
        when(context.getAttribute(HttpServer2.CONF_CONTEXT_ATTRIBUTE)).thenReturn(conf);
        when(service.getServletContext()).thenReturn(context);
        HttpServletRequest request = mock(HttpServletRequest.class);
        when(request.getHeader(HttpHeaders.ACCEPT)).thenReturn(TEST_FORMATS.get(format));
        when(request.getParameter("name")).thenReturn(propertyName);
        HttpServletResponse response = mock(HttpServletResponse.class);
        sw = new StringWriter();
        pw = new PrintWriter(sw);
        when(response.getWriter()).thenReturn(pw);
        // response request
        service.doGet(request, response);
        String result = sw.toString().trim();
        // in the response
        if (Strings.isNullOrEmpty(propertyName)) {
            for (String key : TEST_PROPERTIES.keySet()) {
                assertTrue(result.contains(key) && result.contains(TEST_PROPERTIES.get(key)));
            }
        } else {
            if (conf.get(propertyName) != null) {
                // if property name is not empty and property is found
                assertTrue(result.contains(propertyName));
                for (String key : TEST_PROPERTIES.keySet()) {
                    if (!key.equals(propertyName)) {
                        assertFalse(result.contains(key));
                    }
                }
            } else {
                // if property name is not empty, and it's not in configuration
                // expect proper error code and error message is set to the response
                Mockito.verify(response).sendError(Mockito.eq(HttpServletResponse.SC_NOT_FOUND), Mockito.eq("Property " + propertyName + " not found"));
            }
        }
    } finally {
        if (sw != null) {
            sw.close();
        }
        if (pw != null) {
            pw.close();
        }
        if (service != null) {
            service.destroy();
        }
    }
}