Example usage for java.lang Class getDeclaredField

List of usage examples for java.lang Class getDeclaredField

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Introduction

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

Prototype

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

Source Link

Document

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

Usage

From source file:com.github.gekoh.yagen.ddl.TableConfig.java

private static JoinColumn getJoinColumn(AccessibleObject fieldOrMethod) {
    if (fieldOrMethod.isAnnotationPresent(JoinColumn.class)) {
        return fieldOrMethod.getAnnotation(JoinColumn.class);
    }/*from  w w w  .jav  a  2 s.  co  m*/
    if (fieldOrMethod.isAnnotationPresent(OneToMany.class)) {
        OneToMany o2m = fieldOrMethod.getAnnotation(OneToMany.class);
        try {
            if (fieldOrMethod.getAnnotation(JoinColumn.class) != null) {
                return fieldOrMethod.getAnnotation(JoinColumn.class);
            } else if (fieldOrMethod.isAnnotationPresent(JoinColumns.class)) {
                return null; // TODO: implement compound FK
            } else {
                Class<?> targetEntityClass = MappingUtils.determineTargetEntity(fieldOrMethod,
                        o2m.targetEntity());
                return targetEntityClass.getDeclaredField(o2m.mappedBy()).getAnnotation(JoinColumn.class);
            }
        } catch (NoSuchFieldException e) {
            throw new IllegalStateException(e);
        }
    }
    return null;
}

From source file:com.ricemap.spateDB.operations.RangeQuery.java

/**
 * Performs a range query using MapReduce
 * /*w  w  w . j  a  v  a  2  s. c o m*/
 * @param fs
 * @param inputFile
 * @param queryRange
 * @param shape
 * @param output
 * @return
 * @throws IOException
 */
public static long rangeQueryMapReduce(FileSystem fs, Path inputFile, Path userOutputPath, Shape queryShape,
        Shape shape, boolean overwrite, boolean background, QueryInput query) throws IOException {
    JobConf job = new JobConf(FileMBR.class);

    FileSystem outFs = inputFile.getFileSystem(job);
    Path outputPath = userOutputPath;
    if (outputPath == null) {
        do {
            outputPath = new Path(
                    inputFile.toUri().getPath() + ".rangequery_" + (int) (Math.random() * 1000000));
        } while (outFs.exists(outputPath));
    } else {
        if (outFs.exists(outputPath)) {
            if (overwrite) {
                outFs.delete(outputPath, true);
            } else {
                throw new RuntimeException("Output path already exists and -overwrite flag is not set");
            }
        }
    }

    job.setJobName("RangeQuery");
    job.setClass(SpatialSite.FilterClass, RangeFilter.class, BlockFilter.class);
    RangeFilter.setQueryRange(job, queryShape); // Set query range for
    // filter

    ClusterStatus clusterStatus = new JobClient(job).getClusterStatus();
    job.setNumMapTasks(clusterStatus.getMaxMapTasks() * 5);
    job.setNumReduceTasks(3);

    // Decide which map function to use depending on how blocks are indexed
    // And also which input format to use
    if (SpatialSite.isRTree(fs, inputFile)) {
        // RTree indexed file
        LOG.info("Searching an RTree indexed file");
        job.setInputFormat(RTreeInputFormat.class);
    } else {
        // A file with no local index
        LOG.info("Searching a non local-indexed file");
        job.setInputFormat(ShapeInputFormat.class);
    }

    GlobalIndex<Partition> gIndex = SpatialSite.getGlobalIndex(fs, inputFile);
    // if (gIndex != null && gIndex.isReplicated()){
    // job.setMapperClass(RangeQueryMap.class);

    Class<?> OutputKey = NullWritable.class;
    try {
        Class<?> c = shape.getClass();
        Field f = c.getDeclaredField(query.field);
        f.setAccessible(true);
        if (f.getType().equals(Integer.TYPE)) {
            OutputKey = IntWritable.class;
        } else if (f.getType().equals(Double.TYPE)) {
            OutputKey = DoubleWritable.class;
        } else if (f.getType().equals(Long.TYPE)) {
            OutputKey = LongWritable.class;
        }
    } catch (SecurityException e) {
        e.printStackTrace();
    } catch (NoSuchFieldException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

    job.setMapOutputKeyClass(OutputKey);
    switch (query.type) {
    case Distinct:
        job.setMapperClass(DistinctQueryMap.class);
        job.setReducerClass(DistinctQueryReduce.class);
        job.setMapOutputValueClass(NullWritable.class);
        break;
    case Distribution:
        job.setMapperClass(DistributionQueryMap.class);
        job.setReducerClass(DistributionQueryReduce.class);
        job.setMapOutputValueClass(IntWritable.class);
        break;
    default:
        break;
    }
    // }
    // else
    // job.setMapperClass(RangeQueryMapNoDupAvoidance.class);

    // Set query range for the map function
    job.set(QUERY_SHAPE_CLASS, queryShape.getClass().getName());
    job.set(QUERY_SHAPE, queryShape.toText(new Text()).toString());
    job.set(QUERY_FIELD, query.field);

    // Set shape class for the SpatialInputFormat
    SpatialSite.setShapeClass(job, shape.getClass());

    job.setOutputFormat(TextOutputFormat.class);

    ShapeInputFormat.setInputPaths(job, inputFile);
    TextOutputFormat.setOutputPath(job, outputPath);

    // Submit the job
    if (!background) {
        RunningJob runningJob = JobClient.runJob(job);
        Counters counters = runningJob.getCounters();
        Counter outputRecordCounter = counters.findCounter(Task.Counter.MAP_OUTPUT_RECORDS);
        final long resultCount = outputRecordCounter.getValue();

        // If outputPath not set by user, automatically delete it
        if (userOutputPath == null)
            outFs.delete(outputPath, true);

        return resultCount;
    } else {
        JobClient jc = new JobClient(job);
        lastRunningJob = jc.submitJob(job);
        return -1;
    }
}

From source file:org.thoughtland.xlocation.Util.java

public static Activity getActivity() {
    // public static ActivityManagerService self()
    // frameworks/base/services/java/com/android/server/am/ActivityManagerService.java
    Object activity = null;//  w  w w . j a  v  a  2 s  .  c om
    try {
        Class<?> atClazz = Class.forName("android.app.ActivityThread");
        Object activityThread = atClazz.getMethod("currentActivityThread").invoke(null);
        Field fActivities = atClazz.getDeclaredField("mActivities");
        fActivities.setAccessible(true);
        Map<?, ?> activities = (Map<?, ?>) fActivities.get(activityThread);
        Object acr = activities.values().toArray()[0];
        Field fActivity = acr.getClass().getDeclaredField("activity");
        fActivity.setAccessible(true);
        activity = fActivity.get(acr);
    } catch (Throwable e) {
    }
    return (Activity) activity;
}

From source file:info.guardianproject.netcipher.web.WebkitProxy.java

@TargetApi(21) // for android.util.ArrayMap methods
@SuppressWarnings("rawtypes")
private static boolean setWebkitProxyLollipop(Context appContext, String host, int port) {
    System.setProperty("http.proxyHost", host);
    System.setProperty("http.proxyPort", port + "");
    System.setProperty("https.proxyHost", host);
    System.setProperty("https.proxyPort", port + "");
    try {// w w  w.j ava  2  s.  c  om
        Class applictionClass = Class.forName("android.app.Application");
        Field mLoadedApkField = applictionClass.getDeclaredField("mLoadedApk");
        mLoadedApkField.setAccessible(true);
        Object mloadedApk = mLoadedApkField.get(appContext);
        Class loadedApkClass = Class.forName("android.app.LoadedApk");
        Field mReceiversField = loadedApkClass.getDeclaredField("mReceivers");
        mReceiversField.setAccessible(true);
        ArrayMap receivers = (ArrayMap) mReceiversField.get(mloadedApk);
        for (Object receiverMap : receivers.values()) {
            for (Object receiver : ((ArrayMap) receiverMap).keySet()) {
                Class clazz = receiver.getClass();
                if (clazz.getName().contains("ProxyChangeListener")) {
                    Method onReceiveMethod = clazz.getDeclaredMethod("onReceive", Context.class, Intent.class);
                    Intent intent = new Intent(Proxy.PROXY_CHANGE_ACTION);
                    onReceiveMethod.invoke(receiver, appContext, intent);
                }
            }
        }
        return true;
    } catch (ClassNotFoundException e) {
        Log.d("ProxySettings",
                "Exception setting WebKit proxy on Lollipop through ProxyChangeListener: " + e.toString());
    } catch (NoSuchFieldException e) {
        Log.d("ProxySettings",
                "Exception setting WebKit proxy on Lollipop through ProxyChangeListener: " + e.toString());
    } catch (IllegalAccessException e) {
        Log.d("ProxySettings",
                "Exception setting WebKit proxy on Lollipop through ProxyChangeListener: " + e.toString());
    } catch (NoSuchMethodException e) {
        Log.d("ProxySettings",
                "Exception setting WebKit proxy on Lollipop through ProxyChangeListener: " + e.toString());
    } catch (InvocationTargetException e) {
        Log.d("ProxySettings",
                "Exception setting WebKit proxy on Lollipop through ProxyChangeListener: " + e.toString());
    }
    return false;
}

From source file:info.guardianproject.netcipher.webkit.WebkitProxy.java

@TargetApi(21) // for android.util.ArrayMap methods
@SuppressWarnings("rawtypes")
private static boolean setWebkitProxyLollipop(Context appContext, String host, int port) {
    System.setProperty("http.proxyHost", host);
    System.setProperty("http.proxyPort", Integer.toString(port));
    System.setProperty("https.proxyHost", host);
    System.setProperty("https.proxyPort", Integer.toString(port));
    try {/*from  ww  w  .ja  v  a2  s  .c o  m*/
        Class applictionClass = Class.forName("android.app.Application");
        Field mLoadedApkField = applictionClass.getDeclaredField("mLoadedApk");
        mLoadedApkField.setAccessible(true);
        Object mloadedApk = mLoadedApkField.get(appContext);
        Class loadedApkClass = Class.forName("android.app.LoadedApk");
        Field mReceiversField = loadedApkClass.getDeclaredField("mReceivers");
        mReceiversField.setAccessible(true);
        ArrayMap receivers = (ArrayMap) mReceiversField.get(mloadedApk);
        for (Object receiverMap : receivers.values()) {
            for (Object receiver : ((ArrayMap) receiverMap).keySet()) {
                Class clazz = receiver.getClass();
                if (clazz.getName().contains("ProxyChangeListener")) {
                    Method onReceiveMethod = clazz.getDeclaredMethod("onReceive", Context.class, Intent.class);
                    Intent intent = new Intent(Proxy.PROXY_CHANGE_ACTION);
                    onReceiveMethod.invoke(receiver, appContext, intent);
                }
            }
        }
        return true;
    } catch (ClassNotFoundException e) {
        Log.d("ProxySettings",
                "Exception setting WebKit proxy on Lollipop through ProxyChangeListener: " + e.toString());
    } catch (NoSuchFieldException e) {
        Log.d("ProxySettings",
                "Exception setting WebKit proxy on Lollipop through ProxyChangeListener: " + e.toString());
    } catch (IllegalAccessException e) {
        Log.d("ProxySettings",
                "Exception setting WebKit proxy on Lollipop through ProxyChangeListener: " + e.toString());
    } catch (NoSuchMethodException e) {
        Log.d("ProxySettings",
                "Exception setting WebKit proxy on Lollipop through ProxyChangeListener: " + e.toString());
    } catch (InvocationTargetException e) {
        Log.d("ProxySettings",
                "Exception setting WebKit proxy on Lollipop through ProxyChangeListener: " + e.toString());
    }
    return false;
}

From source file:com.github.hateoas.forms.spring.SpringActionDescriptor.java

private static Field getFormAnnotated(final String fieldName, Class<?> entity) throws NoSuchFieldException {
    while (entity != null) {
        try {/*www .  j  a v a 2s .  co  m*/
            Field field = entity.getDeclaredField(fieldName);
            field.setAccessible(true);
            if (field.isAnnotationPresent(Select.class) || field.isAnnotationPresent(Input.class)) {
                return field;
            }
            break;
        } catch (NoSuchFieldException e) {
            entity = entity.getSuperclass();
        }
    }
    return null;
}

From source file:info.papdt.blacklight.support.Utility.java

public static View findActionSpinner(Activity activity) {
    ActionBar action = activity.getActionBar();

    // Get ActionBarImpl class for ActionView object
    // Then get spinner from ActionView
    try {/*from  w w w. j a v  a2 s  .  c o m*/
        Class<?> clazz = Class.forName("com.android.internal.app.ActionBarImpl");
        Field f = clazz.getDeclaredField("mActionView");
        f.setAccessible(true);
        Object actionView = f.get(action);
        clazz = Class.forName("com.android.internal.widget.ActionBarView");
        f = clazz.getDeclaredField("mSpinner");
        f.setAccessible(true);
        return (View) f.get(actionView);
    } catch (Exception e) {
        if (DEBUG) {
            Log.e(TAG, "Failed to find spinner");
            Log.e(TAG, Log.getStackTraceString(e));
        }

        return null;
    }
}

From source file:org.thoughtland.xlocation.Util.java

public static Context getActivityContext() {
    // public static ActivityManagerService self()
    // frameworks/base/services/java/com/android/server/am/ActivityManagerService.java
    try {/*from w w w. java2 s .  c om*/
        Class<?> cam = Class.forName("com.android.server.am.ActivityManagerService");
        Object am = cam.getMethod("self").invoke(null);
        if (am == null)
            return null;
        Field mContext = cam.getDeclaredField("mContext");
        mContext.setAccessible(true);
        return (Context) mContext.get(am);
    } catch (Throwable e) {
        //Util.bug(null, ex);
        return null;
    }
}

From source file:info.guardianproject.netcipher.web.WebkitProxy.java

@TargetApi(19)
private static boolean setKitKatProxy(String appClass, Context appContext, String host, int port) {
    //Context appContext = webView.getContext().getApplicationContext();

    if (host != null) {
        System.setProperty("http.proxyHost", host);
        System.setProperty("http.proxyPort", port + "");
        System.setProperty("https.proxyHost", host);
        System.setProperty("https.proxyPort", port + "");
    }/*from  ww w. j  ava2  s  .  c  o m*/

    try {
        Class applictionCls = Class.forName(appClass);
        Field loadedApkField = applictionCls.getField("mLoadedApk");
        loadedApkField.setAccessible(true);
        Object loadedApk = loadedApkField.get(appContext);
        Class loadedApkCls = Class.forName("android.app.LoadedApk");
        Field receiversField = loadedApkCls.getDeclaredField("mReceivers");
        receiversField.setAccessible(true);
        ArrayMap receivers = (ArrayMap) receiversField.get(loadedApk);
        for (Object receiverMap : receivers.values()) {
            for (Object rec : ((ArrayMap) receiverMap).keySet()) {
                Class clazz = rec.getClass();
                if (clazz.getName().contains("ProxyChangeListener")) {
                    Method onReceiveMethod = clazz.getDeclaredMethod("onReceive", Context.class, Intent.class);
                    Intent intent = new Intent(Proxy.PROXY_CHANGE_ACTION);

                    if (host != null) {
                        /*********** optional, may be need in future *************/
                        final String CLASS_NAME = "android.net.ProxyProperties";
                        Class cls = Class.forName(CLASS_NAME);
                        Constructor constructor = cls.getConstructor(String.class, Integer.TYPE, String.class);
                        constructor.setAccessible(true);
                        Object proxyProperties = constructor.newInstance(host, port, null);
                        intent.putExtra("proxy", (Parcelable) proxyProperties);
                        /*********** optional, may be need in future *************/
                    }

                    onReceiveMethod.invoke(rec, appContext, intent);
                }
            }
        }
        return true;
    } catch (ClassNotFoundException e) {
        StringWriter sw = new StringWriter();
        e.printStackTrace(new PrintWriter(sw));
        String exceptionAsString = sw.toString();
        Log.v(TAG, e.getMessage());
        Log.v(TAG, exceptionAsString);
    } catch (NoSuchFieldException e) {
        StringWriter sw = new StringWriter();
        e.printStackTrace(new PrintWriter(sw));
        String exceptionAsString = sw.toString();
        Log.v(TAG, e.getMessage());
        Log.v(TAG, exceptionAsString);
    } catch (IllegalAccessException e) {
        StringWriter sw = new StringWriter();
        e.printStackTrace(new PrintWriter(sw));
        String exceptionAsString = sw.toString();
        Log.v(TAG, e.getMessage());
        Log.v(TAG, exceptionAsString);
    } catch (IllegalArgumentException e) {
        StringWriter sw = new StringWriter();
        e.printStackTrace(new PrintWriter(sw));
        String exceptionAsString = sw.toString();
        Log.v(TAG, e.getMessage());
        Log.v(TAG, exceptionAsString);
    } catch (NoSuchMethodException e) {
        StringWriter sw = new StringWriter();
        e.printStackTrace(new PrintWriter(sw));
        String exceptionAsString = sw.toString();
        Log.v(TAG, e.getMessage());
        Log.v(TAG, exceptionAsString);
    } catch (InvocationTargetException e) {
        StringWriter sw = new StringWriter();
        e.printStackTrace(new PrintWriter(sw));
        String exceptionAsString = sw.toString();
        Log.v(TAG, e.getMessage());
        Log.v(TAG, exceptionAsString);
    } catch (InstantiationException e) {
        StringWriter sw = new StringWriter();
        e.printStackTrace(new PrintWriter(sw));
        String exceptionAsString = sw.toString();
        Log.v(TAG, e.getMessage());
        Log.v(TAG, exceptionAsString);
    }
    return false;
}

From source file:net.sf.beanlib.hibernate3.Hibernate3SequenceGenerator.java

/** Returns the next sequence id from the specified sequence and session. */
public static long nextval(final String sequenceName, final Session session) {
    Object target = session;/*from   ww  w. j  a v a2 s  .  com*/

    if (Proxy.isProxyClass(session.getClass())) {
        // Dig out the underlying session.
        InvocationHandler invocationHandler = Proxy.getInvocationHandler(session);

        if (invocationHandler instanceof DtoCentricCloseSuppressingInvocationHandler) {
            // This is faster for we don't need to use reflection.
            DtoCentricCloseSuppressingInvocationHandler dch = (DtoCentricCloseSuppressingInvocationHandler) invocationHandler;
            target = dch.getTarget();
        } else {
            Class<?> invocationHandlerClass = invocationHandler.getClass();
            Class<?> invocationHandlerDeclaringClass = invocationHandlerClass.getDeclaringClass();

            if (invocationHandlerDeclaringClass == HibernateTemplate.class) {
                String className = invocationHandlerClass.getName();

                if (className.endsWith("CloseSuppressingInvocationHandler")) {
                    // Assume this is the private class org.springframework.orm.hibernate3.HibernateTempate$CloseSuppressingInvocationHandler
                    // Dig out the private target.  
                    // I know this is bad, but there doesn't seem to be a better way.  Oh well.
                    try {
                        Field f = invocationHandlerClass.getDeclaredField("target");
                        f.setAccessible(true);
                        target = f.get(invocationHandler);
                    } catch (SecurityException e) {
                        throw new RuntimeException(e);
                    } catch (NoSuchFieldException e) {
                        throw new RuntimeException(e);
                    } catch (IllegalAccessException e) {
                        throw new RuntimeException(e);
                    }

                }
            }

        }
    }
    SessionImpl sessionImpl;

    if (target instanceof SessionImpl)
        sessionImpl = (SessionImpl) target;
    else
        throw new IllegalStateException("Not yet know how to handle the given session!");
    IdentifierGenerator idGenerator = createIdentifierGenerator(sequenceName, session);
    Serializable id = idGenerator.generate(sessionImpl, null);
    return (Long) id;
}