Example usage for java.io Reader read

List of usage examples for java.io Reader read

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Introduction

In this page you can find the example usage for java.io Reader read.

Prototype

public int read() throws IOException

Source Link

Document

Reads a single character.

Usage

From source file:org.wymiwyg.wrhapi.test.BaseTests.java

private void testSimpleBody(final boolean writeBody) throws Exception {
    final String body = "This is the content of the body";
    WebServer webServer = createServer().startNewWebServer(new Handler() {

        public void handle(Request request, Response response) throws HandlerException {
            log.info("handling testSimpleBody");

            if (writeBody) {
                response.setBody(new MessageBody2Write() {

                    public void writeTo(WritableByteChannel out) throws IOException {
                        out.write(ByteBuffer.wrap(body.getBytes()));
                    }/* w ww. j  a  v  a 2 s  .  co  m*/
                });
            } else {
                response.setBody(new MessageBody2Read() {

                    public ReadableByteChannel read() throws IOException {
                        return Channels.newChannel(new ByteArrayInputStream(body.getBytes()));
                    }
                });
            }
        }
    }, serverBinding);

    try {
        URL serverURL = new URL("http://" + serverBinding.getInetAddress().getHostAddress() + ":"
                + serverBinding.getPort() + "/");
        Reader reader = new InputStreamReader(serverURL.openStream());
        StringWriter stringWriter = new StringWriter();

        for (int ch = reader.read(); ch != -1; ch = reader.read()) {
            stringWriter.write(ch);
        }

        assertEquals(body, stringWriter.toString());
    } catch (MalformedURLException e) {
        throw new RuntimeException(e);
    } catch (IOException e) {
        throw new RuntimeException(e);
    } finally {
        webServer.stop();
    }
}

From source file:com.cognitect.transit.TransitTest.java

public void testReadMany() throws IOException {

    Reader r = reader("true null false \"foo\" 42.2 42");
    assertTrue((Boolean) r.read());
    assertNull(r.read());/*  w ww.  j a  v a  2 s.  com*/
    assertFalse((Boolean) r.read());
    assertEquals("foo", r.read());
    assertEquals(42.2, r.read());
    assertEquals(42L, r.read());
}

From source file:org.wymiwyg.wrhapi.test.BaseTests.java

@Test
public void testEmptyBodyAnHeader() throws Exception {
    final String body = "";
    WebServer webServer = createServer().startNewWebServer(new Handler() {

        public void handle(Request request, final Response response) throws HandlerException {
            log.info("handling testEmptyBody");
            response.setResponseStatus(ResponseStatus.CREATED);
            response.setBody(new MessageBody2Write() {

                public void writeTo(WritableByteChannel out) throws IOException {
                    try {
                        response.setHeader(HeaderName.CONTENT_TYPE, "text/plain");
                    } catch (HandlerException ex) {
                        throw new RuntimeException(ex);
                    }/*w w w .  j ava2s. c o  m*/
                    out.write(ByteBuffer.wrap(body.getBytes()));
                    out.close();
                }
            });
        }
    }, serverBinding);

    try {
        URL serverURL = new URL("http://" + serverBinding.getInetAddress().getHostAddress() + ":"
                + serverBinding.getPort() + "/");
        HttpURLConnection connection = (HttpURLConnection) serverURL.openConnection();
        assertEquals("text/plain", connection.getHeaderField("Content-Type"));
        assertEquals(ResponseStatus.CREATED.getCode(), connection.getResponseCode());
        Reader reader = new InputStreamReader(connection.getInputStream());
        StringWriter stringWriter = new StringWriter();

        for (int ch = reader.read(); ch != -1; ch = reader.read()) {
            stringWriter.write(ch);
        }

        assertEquals(body, stringWriter.toString());
    } catch (MalformedURLException e) {
        throw new RuntimeException(e);
    } catch (IOException e) {
        throw new RuntimeException(e);
    } finally {
        webServer.stop();
    }
}

From source file:com.cognitect.transit.TransitTest.java

public void testRoundTrip() throws Exception {

    Object inObject = true;//w  w  w .j  a v  a2  s .c  om

    OutputStream out = new ByteArrayOutputStream();
    Writer w = TransitFactory.writer(TransitFactory.Format.JSON_VERBOSE, out);
    w.write(inObject);
    String s = out.toString();
    InputStream in = new ByteArrayInputStream(s.getBytes());
    Reader reader = TransitFactory.reader(TransitFactory.Format.JSON, in);
    Object outObject = reader.read();

    assertTrue(isEqual(inObject, outObject));
}

From source file:de.micromata.genome.gwiki.page.gspt.ExtendedTemplate.java

/**
 * Groovy comment.//from w  w w .  j  a  v a2 s. co m
 *
 * @param reader the reader
 * @param elements the elements
 * @throws IOException Signals that an I/O exception has occurred.
 */
private void groovyComment(Reader reader, List<ParseElement> elements) throws IOException {
    StringBuilder sw = new StringBuilder();
    int c;
    while ((c = reader.read()) != -1) {
        if (c == '-') {
            c = reader.read();
            if (c == '-') {
                c = reader.read();
                if (c == '%') {
                    c = reader.read();
                    if (c == '>') {
                        break;
                    } else {
                        sw.append("--%");
                    }
                } else {
                    sw.append("--");
                }
            } else {
                sw.append("-");
            }
        } else {
            sw.append((char) c);
        }
    }
    elements.add(new ParseElement(Type.Comment, sw.toString()));
}

From source file:de.micromata.genome.gwiki.page.gspt.ExtendedTemplate.java

/**
 * Closes the currently open write and writes the following text as normal Groovy script code until it reaches an end %>.
 *
 * @param global the global//from  ww w. j a  v  a 2 s . com
 * @param reader the reader
 * @param elements the elements
 * @throws IOException Signals that an I/O exception has occurred.
 */
private void groovySection(Type global, Reader reader, List<ParseElement> elements) throws IOException {
    // sw.write("\");");
    int c;
    StringBuilder sw = new StringBuilder();
    while ((c = reader.read()) != -1) {
        if (c == '%') {
            c = reader.read();
            if (c != '>') {
                sw.append('%');
            } else {
                break;
            }
        }
        /*
         * Don't eat EOL chars in sections - as they are valid instruction separators. See http://jira.codehaus.org/browse/GROOVY-980
         */
        // if (c != '\n' && c != '\r') {
        sw.append((char) c);
        // }
    }
    elements.add(new ParseElement(global, sw.toString()));
    // sw.write(";\nout.print(\"");
}

From source file:org.wymiwyg.wrhapi.test.BaseTests.java

/**
 * test is the returned status code matches the one of the HandlerException
 * thrown, with a HandlerException thrown after a body is set
 * //from   w  ww . j a v  a 2  s .  c  o  m
 * @throws Exception
 *             on failure
 */
/*public void testExceptionStatusCodeAfterBody() throws Exception {
final int statusCode = 302;
WebServer webServer = createServer().startNewWebServer(new Handler() {
public void handle(Request request, Response response)
throws HandlerException {
log.info("handling testStatusCode");
response.setHeader(HeaderName.SERVER, "Ad-Hoc testing server");
response.setBody(new MessageBody2Write() {
public void writeTo(WritableByteChannel out)
throws IOException {
out.write(ByteBuffer.wrap("my body\n\ncontent\n"
.getBytes()));
}
});
        
throw new HandlerException(ResponseStatus.getInstanceByCode(statusCode));
}
}, serverBinding);
        
try {
URL serverURL = new URL("http://"
+ serverBinding.getInetAddress().getHostAddress() + ":"
+ serverBinding.getPort() + "/");
HttpClient client = new HttpClient();
HttpMethod method = new HeadMethod(serverURL.toString());
method.getParams().setParameter(HttpMethodParams.RETRY_HANDLER,
new DefaultHttpMethodRetryHandler(0, false));
client.executeMethod(method);
// for the handler to be invoked, something of the response has to
// be asked
assertEquals(statusCode, method.getStatusCode());
} catch (MalformedURLException e) {
throw new RuntimeException(e);
} catch (IOException e) {
throw new RuntimeException(e);
} finally {
webServer.stop();
}
}*/
@Test
public void testRepeated() throws Exception {
    final String body = "This is the content of the body";
    final boolean writeBody = false;
    WebServer webServer = createServer().startNewWebServer(new Handler() {

        public void handle(Request request, Response response) throws HandlerException {
            log.info("handling testSimpleBody");

            if (writeBody) {
                response.setBody(new MessageBody2Write() {

                    public void writeTo(WritableByteChannel out) throws IOException {
                        out.write(ByteBuffer.wrap(body.getBytes()));
                    }
                });
            } else {
                response.setBody(new MessageBody2Read() {

                    public ReadableByteChannel read() throws IOException {
                        return Channels.newChannel(new ByteArrayInputStream(body.getBytes()));
                    }
                });
            }
        }
    }, serverBinding);

    TimeLogger tl = new TimeLogger();
    for (int r = 0; r < 10000; r++) {
        tl.startSection("iteration");
        URL serverURL = new URL("http://" + serverBinding.getInetAddress().getHostAddress() + ":"
                + serverBinding.getPort() + "/");
        Reader reader = new InputStreamReader(serverURL.openStream());
        StringWriter stringWriter = new StringWriter();

        for (int ch = reader.read(); ch != -1; ch = reader.read()) {
            stringWriter.write(ch);
        }

        assertEquals(body, stringWriter.toString());
        tl.endSection();
    }

    webServer.stop();

    tl.writeReport(new PrintWriter(System.out));
    System.out.println("Using SummaryReportWriter:");
    tl.setReportWriter(new SummaryReportWriter());
    tl.writeReport(new PrintWriter(System.out));
}

From source file:de.micromata.genome.gwiki.page.gspt.ExtendedTemplate.java

/**
 * Closes the currently open write and writes out the following text as a GString expression until it reaches an end %>.
 *
 * @param reader the reader/*ww  w  .  ja va  2  s.  co m*/
 * @param elements the elements
 * @throws IOException Signals that an I/O exception has occurred.
 */
private void groovyExpression(Reader reader, List<ParseElement> elements) throws IOException {
    // sw.write("\");out.print(\"${");
    StringBuilder sw = new StringBuilder();
    int c;
    while ((c = reader.read()) != -1) {
        if (c == '%') {
            c = reader.read();
            if (c != '>') {
                // sw.write('%');
                sw.append('%');
            } else {
                break;
            }
        }
        if (c != '\n' && c != '\r') {
            sw.append((char) c);
        }
    }
    elements.add(new ParseElement(Type.AssignExpr, sw.toString()));
    // sw.write("}\");\nout.print(\"");
}

From source file:ca.sqlpower.enterprise.JSONResponseHandler.java

public JSONMessage handleResponse(Reader reader, int status) {
    if (status == 404) {
        throw new RuntimeException("Server resource is not available.");
    }/*from  w w w.  jav a  2 s. c om*/
    if (status == 403) {
        throw new AccessDeniedException("Insufficient priviledges");
    }

    JSONTokener tokener = new JSONTokener(reader);
    try {
        JSONObject message;
        try {
            message = (JSONObject) tokener.nextValue();
        } catch (ClassCastException ex) {
            StringBuffer sb = new StringBuffer();
            sb.append("Internal server error. Server responded with the following.\n");
            try {
                int charAsInt = reader.read();
                while (charAsInt != -1) {
                    sb.append((char) charAsInt);
                    charAsInt = reader.read();
                }
                logger.error(sb.toString());
            } catch (IOException e) {
                logger.error("Failed to parse the root exception. The following was received " + sb.toString());
            }
            throw new RuntimeException(
                    "Server error " + status + ". See logs or server logs for more details.");
        }

        // Does the response contain data? If so, return it. Communication
        // with the resource has been successful.
        if (message.getString("responseKind").equals("data")) {
            return new JSONMessage(message.getString("data"), status);
        } else {
            // Has the request been unsuccessful?
            if (message.getString("responseKind").equals("unsuccessful")) {
                return new JSONMessage(message.getString("data"), status);
            } else {
                // Does the response contain an exception? If so, reconstruct, and then
                // re-throw it. There has been an exception on the server.
                if (message.getString("responseKind").equals("exceptionStackTrace")) {

                    JSONArray stackTraceStrings = new JSONArray(message.getString("data"));
                    StringBuffer stackTraceMessage = new StringBuffer();

                    if (stackTraceStrings.length() > 0) {
                        String firstLine = stackTraceStrings.getString(0);
                        String userMessage = null;
                        if (firstLine.contains(FriendlyRuntimeSPPersistenceException.class.getName())) {
                            userMessage = firstLine.substring(
                                    firstLine.indexOf(FriendlyRuntimeSPPersistenceException.class.getName())
                                            + FriendlyRuntimeSPPersistenceException.class.getName().length()
                                            + 2);
                        } else if (firstLine.contains(FriendlySPPersistenceException.class.getName())) {
                            userMessage = firstLine
                                    .substring(firstLine.indexOf(FriendlySPPersistenceException.class.getName())
                                            + FriendlySPPersistenceException.class.getName().length() + 2);
                        }

                        if (userMessage != null) {
                            for (int i = 0; i < stackTraceStrings.length(); i++) {
                                stackTraceMessage.append("\n").append(stackTraceStrings.get(i));
                            }
                            logger.info(stackTraceMessage.toString());

                            throw new FriendlyRuntimeSPPersistenceException(userMessage);
                        }
                    }

                    for (int i = 0; i < stackTraceStrings.length(); i++) {
                        stackTraceMessage.append("\n").append(stackTraceStrings.get(i));
                    }

                    throw new SPPersistenceException(null, stackTraceMessage.toString());

                } else {
                    // This exception represents a(n epic) client-server miscommunication
                    throw new Exception("Unable to parse response ");
                }
            }
        }
    } catch (JSONException ex) {
        StringBuffer sb = new StringBuffer();
        sb.append("Internal server error. Server responded with the following.\n");
        try {
            int charAsInt = reader.read();
            while (charAsInt != -1) {
                sb.append(charAsInt);
                charAsInt = reader.read();
            }
            logger.error(sb.toString());
        } catch (IOException e) {
            logger.error("Failed to parse the root exception. The following was received " + sb.toString());
        }
        throw new RuntimeException("Server error. See logs or server logs for more details.");
    } catch (RuntimeException ex) {
        throw ex;
    } catch (Exception ex) {
        String message = ex.getMessage();
        if (message.contains("\n")) {
            String[] messages = message.split("\n");
            for (String serverMsg : messages) {
                if (serverMsg.trim().length() > 0) {
                    message = serverMsg.trim();
                    break;
                }
            }
        }
        throw new RuntimeException("Server returned status " + status + "\n" + message, ex);
    }
}

From source file:net.metanotion.json.StreamingParser.java

private String lexInt(final Reader in, final int firstChar) throws IOException {
    final StringBuilder sb = new StringBuilder();
    int digits = 0;
    if (firstChar == '-') {
        sb.append("-");
    } else if (Character.isDigit(firstChar)) {
        sb.append(Character.toChars(firstChar));
        digits++;//from   w  ww.  j  av a  2 s .  c o  m
    } else {
        final String found = new String(Character.toChars(firstChar));
        throw new ParserException("Expecting a number, instead found: '" + found + QUOTE);
    }
    while (true) {
        in.mark(MAX_BUFFER);
        final int c = in.read();
        if (Character.isDigit(c)) {
            digits++;
            sb.append(Character.toChars(c));
        } else {
            in.reset();
            if (digits == 0) {
                throw new ParserException(EXPECTED_DIGIT);
            }
            return sb.toString();
        }
    }
}