Example usage for java.lang Class getField

Introduction

In this page you can find the example usage for java.lang Class getField.

Prototype

@CallerSensitive
public Field getField(String name) throws NoSuchFieldException, SecurityException 

Source Link

Document

Returns a Field object that reflects the specified public member field of the class or interface represented by this Class object.

Usage

From source file:org.apache.jackrabbit.core.TestRepository.java

/**
 * Attempts to retrieve the test repository instance used by the
 * Jackrabbit main test suite without having a direct dependency to any
 * of the classes in src/test/java. This method assumes that we are
 * running within the Jackrabbit main test suite if the AbstractJCRTest
 * class is available. The initialized RepositoryHelper instance is
 * retrieved from the static "helper" field of the AbstractJCRTest class,
 * and the underlying repository and configured superuser credentials are
 * extracted from the helper instance. This information is in turn used
 * to create a custom Repository adapter that delegates calls to the
 * underlying repository and uses the superuser credentials for the login
 * methods where no credentials are passed by the client.
 *
 * @return test repository instance// ww w .j a  v a2 s  .c  o  m
 * @throws Exception if the test repository could not be retrieved
 */
private static Repository getIntegratedInstance() throws Exception {
    Class test = Class.forName("org.apache.jackrabbit.test.AbstractJCRTest");
    Map helper = new BeanMap(test.getField("helper").get(null));
    final Repository repository = (Repository) helper.get("repository");
    final Credentials superuser = (Credentials) helper.get("superuserCredentials");
    return new ProxyRepository(new RepositoryFactory() {

        public Repository getRepository() throws RepositoryException {
            return repository;
        }

    }) {

        public Session login(String workspace) throws RepositoryException {
            return repository.login(superuser, workspace);
        }

        public Session login() throws RepositoryException {
            return repository.login(superuser);
        }

    };
}

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From source file:Main.java

public static int getStatusHeight(Activity activity) {
    int statusHeight = 0;
    Rect localRect = new Rect();
    activity.getWindow().getDecorView().getWindowVisibleDisplayFrame(localRect);
    statusHeight = localRect.top;//from   w w  w.  jav  a 2s.c  o  m
    if (0 == statusHeight) {
        Class<?> localClass;
        try {
            localClass = Class.forName("com.android.internal.R$dimen");
            Object localObject = localClass.newInstance();
            int i5 = Integer.parseInt(localClass.getField("status_bar_height").get(localObject).toString());
            statusHeight = activity.getResources().getDimensionPixelSize(i5);
        } catch (ClassNotFoundException e) {
            e.printStackTrace();
        } catch (IllegalAccessException e) {
            e.printStackTrace();
        } catch (InstantiationException e) {
            e.printStackTrace();
        } catch (NumberFormatException e) {
            e.printStackTrace();
        } catch (IllegalArgumentException e) {
            e.printStackTrace();
        } catch (SecurityException e) {
            e.printStackTrace();
        } catch (NoSuchFieldException e) {
            e.printStackTrace();
        }
    }
    return statusHeight;
}

---

From source file:Main.java

public static int getStatusBarHeight(Context context) {
    Class<?> c = null;
    Object obj = null;/*from  w  ww.j  a v  a 2 s.c  o m*/
    Field field = null;
    int x = 0, statusBarHeight = 0;
    try {
        c = Class.forName("com.android.internal.R$dimen");
        obj = c.newInstance();
        field = c.getField("status_bar_height");
        x = Integer.parseInt(field.get(obj).toString());
        statusBarHeight = context.getResources().getDimensionPixelSize(x);
    } catch (Exception e1) {
        e1.printStackTrace();
    }
    return statusBarHeight;
}

---

From source file:Main.java

public static int getStatusBarHeight1(Context activity) {
    Class<?> c = null;
    Object obj = null;/*from   w ww  . j  a  va  2s.  co  m*/
    Field field = null;
    int x = 0, statusBarHeight = 0;
    try {
        c = Class.forName("com.android.internal.R$dimen");
        obj = c.newInstance();
        field = c.getField("status_bar_height");
        x = Integer.parseInt(field.get(obj).toString());
        statusBarHeight = activity.getResources().getDimensionPixelSize(x);
    } catch (Exception e1) {
        e1.printStackTrace();
    }
    return statusBarHeight;
}

---

From source file:com.feilong.core.lang.reflect.FieldUtilTemp.java

/**
 * ./*from   w w  w. j  a v  a 2  s.com*/
 * 
 * <p>
 *  <code>owner</code> null, {@link NullPointerException}<br>
 *  <code>fieldName</code> null, {@link NullPointerException}<br>
 *  <code>fieldName</code> blank, {@link IllegalArgumentException}<br>
 * </p>
 *
 * @param owner
 *            the owner
 * @param fieldName
 *            
 * @param value
 *            
 * @see java.lang.Object#getClass()
 * @see java.lang.Class#getField(String)
 * @see java.lang.reflect.Field#set(Object, Object)
 * 
 * @see org.apache.commons.lang3.reflect.FieldUtils#writeField(Field, Object, Object, boolean)
 * @since 1.4.0
 */
public static void setFieldValue(Object owner, String fieldName, Object value) {
    Validate.notNull(owner, "owner can't be null!");
    Validate.notBlank(fieldName, "fieldName can't be blank!");
    try {
        Class<?> ownerClass = owner.getClass();
        Field field = ownerClass.getField(fieldName);
        field.set(ownerClass, value);
    } catch (Exception e) {
        throw new ReflectException(e);
    }
}

---

From source file:org.tros.utils.logging.Logging.java

public static void initLogging(BuildInfo binfo, Class init) {
    try {/*  w  ww.j  a  va 2  s.co  m*/
        //hack to get this logger to shut up
        Class<?> forName = Class.forName("org.reflections.Reflections");
        Field f = forName.getField("log");
        f.set(null, null);
    } catch (ClassNotFoundException | NoSuchFieldException | SecurityException | IllegalArgumentException
            | IllegalAccessException ex) {
        Logger.getLogger(Logging.class.getName()).log(Level.FINEST,
                "org.reflections.Reflections not in CLASSPATH...");
    }

    //make logs directory
    getLogDirectory(binfo);

    //init logger
    String dir = getApplicationEtcDirectory(binfo) + "/logging.properties";
    File logProp = new File(dir);
    if (!logProp.exists()) {
        copyFile(binfo, init, logProp);
    }

    if (logProp.exists()) {
        loadFile(logProp);
    }

    LogManager lm = LogManager.getLogManager();
    String property = lm.getProperty("version");
    if (property == null || !property.equals(binfo.getVersion().replace("-SNAPSHOT", ""))) {
        //backup old file
        File backup = new File(logProp.getAbsolutePath() + "." + (property == null ? "old" : property));
        logProp.renameTo(backup);
        //copy new file
        copyFile(binfo, init, logProp);
        //re-load new file
        loadFile(logProp);
    }

    //Small hack to close SwingComponentHandler which should only be used by a GUI
    //however, if the logging.properties file is already set with this handler, remove
    //it and then the GUI will manually re-add it in the LogConsole constructor.
    Logger logger = Logger.getLogger("");
    try {
        Class<?> swingLogger = Class.forName("org.tros.utils.logging.SwingComponentHandler");
        for (Handler h : logger.getHandlers()) {
            if (swingLogger.isAssignableFrom(h.getClass())) {
                logger.removeHandler(h);
                h.close();
            }
        }
    } catch (ClassNotFoundException ex) {
        Logger.getLogger(Logging.class.getName()).log(Level.SEVERE, null, ex);
    }
}

---

From source file:Main.java

public static int getStatusBarHeight(Context context) {
    Class<?> c = null;
    Object obj = null;/*  ww  w . j  a  v  a2s.  c o m*/
    Field field = null;

    int x = 0, statusBarHeight = 0;

    try {
        c = Class.forName("com.android.internal.R$dimen");
        obj = c.newInstance();
        field = c.getField("status_bar_height");
        x = Integer.parseInt(field.get(obj).toString());
        statusBarHeight = context.getResources().getDimensionPixelSize(x);
    } catch (Exception e1) {
        e1.printStackTrace();
    }

    return statusBarHeight;
}

---

From source file:Main.java

public static int getStatusBarHeight(Context context) {
    Class<?> c;
    Object obj;/*from  www . j  av a  2s  . c  o  m*/
    Field field;
    int x, statusBarHeight = 0;
    try {
        c = Class.forName("com.android.internal.R$dimen");
        obj = c.newInstance();
        field = c.getField("status_bar_height");
        x = Integer.parseInt(field.get(obj).toString());
        statusBarHeight = context.getResources().getDimensionPixelSize(x);
    } catch (Exception e1) {
        e1.printStackTrace();
    }
    return statusBarHeight;
    /**
     * Rect frame = new Rect();
            
     getWindow().getDecorView().getWindowVisibleDisplayFrame(frame);
            
     int statusBarHeight = frame.top;
     */
}

---

From source file:Main.java

public static int getStatusBarHeight(Context context) {
    Class c = null;
    Object bj = null;/*from  ww w .  j  a  va2s. co  m*/
    Field field = null;
    int x = 0, statusBarHeight = 0;
    try {
        c = Class.forName("com.android.internal.R$dimen");
        bj = c.newInstance();
        field = c.getField("status_bar_height");
        x = Integer.parseInt(field.get(bj).toString());
        statusBarHeight = context.getResources().getDimensionPixelSize(x);
    } catch (Exception e1) {
        e1.printStackTrace();
    }
    return statusBarHeight;
}

---

From source file:Main.java

public static int getStatusBarHeight(Context context) {
    Class<?> c = null;
    Object obj = null;/* w  w  w .ja  v a 2  s . c  om*/
    Field field = null;
    int x = 0;
    int sbar = 0;
    try {
        c = Class.forName("com.android.internal.R$dimen");
        obj = c.newInstance();
        field = c.getField("status_bar_height");
        x = Integer.parseInt(field.get(obj).toString());
        sbar = context.getResources().getDimensionPixelSize(x);
    } catch (Exception e) {
        e.printStackTrace();
    }
    return sbar;
}

---

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