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

Example 81 with StringWriter

use of java.io.StringWriter in project hive by apache.

the class TestHS2HttpServer method getURLResponseAsString.

private String getURLResponseAsString(String baseURL) throws IOException {
    URL url = new URL(baseURL);
    HttpURLConnection conn = (HttpURLConnection) url.openConnection();
    Assert.assertEquals(HttpURLConnection.HTTP_OK, conn.getResponseCode());
    StringWriter writer = new StringWriter();
    IOUtils.copy(conn.getInputStream(), writer, "UTF-8");
    return writer.toString();
}

Example 82 with StringWriter

use of java.io.StringWriter in project hive by apache.

the class TestScripts method getTemplateResult.

protected static String getTemplateResult(String command, Map<String, String> keyValues) throws IOException {
    VelocityContext context = new VelocityContext();
    for (String key : keyValues.keySet()) {
        context.put(key, keyValues.get(key));
    }
    StringWriter writer = new StringWriter();
    if (!Velocity.evaluate(context, writer, command, command)) {
        throw new IOException("Unable to render " + command + " with " + keyValues);
    }
    writer.close();
    return writer.toString();
}

Example 83 with StringWriter

use of java.io.StringWriter in project kafka by apache.

the class Utils method stackTrace.

/**
     * Get the stack trace from an exception as a string
     */
public static String stackTrace(Throwable e) {
    StringWriter sw = new StringWriter();
    PrintWriter pw = new PrintWriter(sw);
    e.printStackTrace(pw);
    return sw.toString();
}

Example 84 with StringWriter

use of java.io.StringWriter in project storm by apache.

the class TestRelNodeCompiler method testFilter.

@Test
public void testFilter() throws Exception {
    String sql = "SELECT ID + 1 FROM FOO WHERE ID > 3";
    TestCompilerUtils.CalciteState state = TestCompilerUtils.sqlOverDummyTable(sql);
    JavaTypeFactory typeFactory = new JavaTypeFactoryImpl(RelDataTypeSystem.DEFAULT);
    LogicalProject project = (LogicalProject) state.tree();
    LogicalFilter filter = (LogicalFilter) project.getInput();
    try (StringWriter sw = new StringWriter();
        PrintWriter pw = new PrintWriter(sw)) {
        RelNodeCompiler compiler = new RelNodeCompiler(pw, typeFactory);
        // standalone mode doesn't use inputstreams argument
        compiler.visitFilter(filter, Collections.EMPTY_LIST);
        pw.flush();
        Assert.assertThat(sw.toString(), containsString("> 3"));
    }
    try (StringWriter sw = new StringWriter();
        PrintWriter pw = new PrintWriter(sw)) {
        RelNodeCompiler compiler = new RelNodeCompiler(pw, typeFactory);
        // standalone mode doesn't use inputstreams argument
        compiler.visitProject(project, Collections.EMPTY_LIST);
        pw.flush();
        Assert.assertThat(sw.toString(), containsString(" + 1"));
    }
}

Example 85 with StringWriter

use of java.io.StringWriter in project storm by apache.

the class CsvSerializer method write.

@Override
public ByteBuffer write(List<Object> data, ByteBuffer buffer) {
    try {
        StringWriter writer = new StringWriter();
        CSVPrinter printer = new CSVPrinter(writer, CSVFormat.RFC4180);
        for (Object o : data) {
            printer.print(o);
        }
        //since using StringWriter, we do not need to close it.
        return ByteBuffer.wrap(writer.getBuffer().toString().getBytes(StandardCharsets.UTF_8));
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
}