Example usage for org.springframework.util Assert state

Introduction

In this page you can find the example usage for org.springframework.util Assert state.

Prototype

public static void state(boolean expression, Supplier<String> messageSupplier)

Source Link

Document

Assert a boolean expression, throwing an IllegalStateException if the expression evaluates to false .

Usage

From source file:org.springframework.boot.devtools.remote.client.RemoteClientConfiguration.java

private ClientHttpRequestInterceptor getSecurityInterceptor() {
    RemoteDevToolsProperties remoteProperties = this.properties.getRemote();
    String secretHeaderName = remoteProperties.getSecretHeaderName();
    String secret = remoteProperties.getSecret();
    Assert.state(secret != null, "The environment value 'spring.devtools.remote.secret' "
            + "is required to secure your connection.");
    return new HttpHeaderInterceptor(secretHeaderName, secret);
}

From source file:org.springframework.boot.devtools.restart.Restarter.java

/**
 * Return the active {@link Restarter} instance. Cannot be called before
 * {@link #initialize(String[]) initialization}.
 * @return the restarter/*  ww  w  . j  a va  2 s. c  o  m*/
 */
public synchronized static Restarter getInstance() {
    Assert.state(instance != null, "Restarter has not been initialized");
    return instance;
}

From source file:org.springframework.boot.devtools.restart.server.HttpRestartServer.java

/**
 * Handle a server request./*from w ww.j  a va2s  .  c om*/
 * @param request the request
 * @param response the response
 * @throws IOException in case of I/O errors
 */
public void handle(ServerHttpRequest request, ServerHttpResponse response) throws IOException {
    try {
        Assert.state(request.getHeaders().getContentLength() > 0, "No content");
        ObjectInputStream objectInputStream = new ObjectInputStream(request.getBody());
        ClassLoaderFiles files = (ClassLoaderFiles) objectInputStream.readObject();
        objectInputStream.close();
        this.server.updateAndRestart(files);
        response.setStatusCode(HttpStatus.OK);
    } catch (Exception ex) {
        logger.warn("Unable to handler restart server HTTP request", ex);
        response.setStatusCode(HttpStatus.INTERNAL_SERVER_ERROR);
    }
}

From source file:org.springframework.boot.devtools.tunnel.client.TunnelClient.java

/**
 * Start the client and accept incoming connections on the port.
 * @throws IOException in case of I/O errors
 *//*from w w  w  .ja v a 2 s. c  o  m*/
public synchronized void start() throws IOException {
    Assert.state(this.serverThread == null, "Server already started");
    ServerSocketChannel serverSocketChannel = ServerSocketChannel.open();
    serverSocketChannel.socket().bind(new InetSocketAddress(this.listenPort));
    logger.trace("Listening for TCP traffic to tunnel on port " + this.listenPort);
    this.serverThread = new ServerThread(serverSocketChannel);
    this.serverThread.start();
}

From source file:org.springframework.boot.devtools.tunnel.payload.HttpTunnelPayload.java

/**
 * Return the {@link HttpTunnelPayload} for the given message or {@code null} if there
 * is no payload.//from  w  w  w  . j av  a  2 s . co  m
 * @param message the HTTP message
 * @return the payload or {@code null}
 * @throws IOException in case of I/O errors
 */
public static HttpTunnelPayload get(HttpInputMessage message) throws IOException {
    long length = message.getHeaders().getContentLength();
    if (length <= 0) {
        return null;
    }
    String seqHeader = message.getHeaders().getFirst(SEQ_HEADER);
    Assert.state(StringUtils.hasLength(seqHeader), "Missing sequence header");
    ReadableByteChannel body = Channels.newChannel(message.getBody());
    ByteBuffer payload = ByteBuffer.allocate((int) length);
    while (payload.hasRemaining()) {
        body.read(payload);
    }
    body.close();
    payload.flip();
    return new HttpTunnelPayload(Long.valueOf(seqHeader), payload);
}

From source file:org.springframework.boot.devtools.tunnel.payload.HttpTunnelPayload.java

/**
 * Return the payload data for the given source {@link ReadableByteChannel} or null if
 * the channel timed out whilst reading.
 * @param channel the source channel/*from   ww w.  j  a va 2  s  .  c  o  m*/
 * @return payload data or {@code null}
 * @throws IOException in case of I/O errors
 */
public static ByteBuffer getPayloadData(ReadableByteChannel channel) throws IOException {
    ByteBuffer buffer = ByteBuffer.allocate(BUFFER_SIZE);
    try {
        int amountRead = channel.read(buffer);
        Assert.state(amountRead != -1, "Target server connection closed");
        buffer.flip();
        return buffer;
    } catch (InterruptedIOException ex) {
        return null;
    }
}

From source file:org.springframework.boot.devtools.tunnel.server.RemoteDebugPortProvider.java

@Override
public int getPort() {
    Assert.state(isRemoteDebugRunning(), "Remote debug is not running");
    return getRemoteDebugPort();
}

From source file:org.springframework.boot.jta.narayana.DataSourceXAResourceRecoveryHelper.java

private XAResource getDelegate(boolean required) {
    Assert.state(this.delegate != null || !required, "Connection has not been opened");
    return this.delegate;
}

From source file:org.springframework.boot.loader.tools.Repackager.java

private LayoutFactory getLayoutFactory() {
    if (this.layoutFactory != null) {
        return this.layoutFactory;
    }//from  ww  w .ja va2  s.  c o m
    List<LayoutFactory> factories = SpringFactoriesLoader.loadFactories(LayoutFactory.class, null);
    if (factories.isEmpty()) {
        return new DefaultLayoutFactory();
    }
    Assert.state(factories.size() == 1, "No unique LayoutFactory found");
    return factories.get(0);
}

From source file:org.springframework.boot.test.context.SpringBootTestContextBootstrapper.java

protected Class<?>[] getOrFindConfigurationClasses(MergedContextConfiguration mergedConfig) {
    Class<?>[] classes = mergedConfig.getClasses();
    if (containsNonTestComponent(classes) || mergedConfig.hasLocations()
            || !mergedConfig.getContextInitializerClasses().isEmpty()) {
        return classes;
    }//w  w  w .j  a  va2  s.c  o m
    Class<?> found = new SpringBootConfigurationFinder().findFromClass(mergedConfig.getTestClass());
    Assert.state(found != null, "Unable to find a @SpringBootConfiguration, you need to use "
            + "@ContextConfiguration or @SpringBootTest(classes=...) " + "with your test");
    logger.info(
            "Found @SpringBootConfiguration " + found.getName() + " for test " + mergedConfig.getTestClass());
    return merge(found, classes);
}